Fund Name Asset Class Security Name Base Market …...Fund Name Asset Class Security Name Base...

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity Date MML Income & Growth Fund EQUITY ELEMENT SOLUTIONS INC 2,242,319 213,351 1.67 0 MML Income & Growth Fund EQUITY CORTEVA INC 2,100,912 72,923 1.57 0 MML Income & Growth Fund EQUITY DUPONT DE NEMOURS INC 2,023,855 36,479 1.51 0 MML Income & Growth Fund EQUITY ENVISTA HOLDINGS CORP 1,674,044 67,830 1.25 0 MML Income & Growth Fund EQUITY RAYTHEON TECHNOLOGIES CORP 1,596,332 27,743 1.19 0 MML Income & Growth Fund CASH EQUIVALENT FIXED INC CLEARING CORP.REPO 872,996 872,996 0.65 0 10/1/2020 MML Income & Growth Fund EQUITY NORTHERN TRUST CORP 1,261,321 16,177 0.94 0 MML Income & Growth Fund EQUITY EDISON INTERNATIONAL 1,653,113 32,516 1.23 0 MML Income & Growth Fund EQUITY HUMANA INC 1,537,187 3,714 1.15 0 MML Income & Growth Fund EQUITY LENNAR CORP A 2,560,178 31,344 1.91 0 MML Income & Growth Fund EQUITY VALERO ENERGY CORP 1,030,929 23,798 0.77 0 MML Income & Growth Fund EQUITY HOLOGIC INC 1,262,332 18,991 0.94 0 MML Income & Growth Fund EQUITY HUNT (JB) TRANSPRT SVCS INC 2,199,265 17,402 1.64 0 MML Income & Growth Fund EQUITY AARON S INC 2,493,393 44,014 1.86 0 MML Income & Growth Fund EQUITY COGNIZANT TECH SOLUTIONS A 2,403,598 34,624 1.79 0 MML Income & Growth Fund EQUITY WABTEC CORP 1,875,707 30,312 1.40 0 MML Income & Growth Fund EQUITY GENERAL DYNAMICS CORP 1,844,718 13,326 1.37 0 MML Income & Growth Fund EQUITY CVS HEALTH CORP 1,734,889 29,707 1.29 0 MML Income & Growth Fund EQUITY ORACLE CORP 1,943,056 32,547 1.45 0 MML Income & Growth Fund EQUITY WELLS FARGO + CO 1,379,003 58,656 1.03 0 MML Income & Growth Fund EQUITY EMERSON ELECTRIC CO 2,150,630 32,799 1.60 0 MML Income & Growth Fund EQUITY LOWE S COS INC 2,026,477 12,218 1.51 0 MML Income & Growth Fund EQUITY TEXAS INSTRUMENTS INC 2,176,976 15,246 1.62 0 MML Income & Growth Fund EQUITY AMERICAN EXPRESS CO 1,947,557 19,427 1.45 0 MML Income & Growth Fund EQUITY MARRIOTT INTERNATIONAL CL A 1,253,348 13,538 0.93 0 MML Income & Growth Fund EQUITY DEERE + CO 3,100,825 13,991 2.31 0 MML Income & Growth Fund EQUITY AIR PRODUCTS + CHEMICALS INC 2,388,539 8,019 1.78 0 MML Income & Growth Fund EQUITY GOLDMAN SACHS GROUP INC 2,020,552 10,054 1.51 0 MML Income & Growth Fund EQUITY QUALCOMM INC 2,101,765 17,860 1.57 0 MML Income & Growth Fund EQUITY MGM RESORTS INTERNATIONAL 2,081,453 95,699 1.55 0 MML Income & Growth Fund EQUITY UNITEDHEALTH GROUP INC 1,925,803 6,177 1.43 0 MML Income & Growth Fund EQUITY JACOBS ENGINEERING GROUP INC 1,926,276 20,764 1.44 0 MML Income & Growth Fund EQUITY MICROCHIP TECHNOLOGY INC 2,226,193 21,664 1.66 0 MML Income & Growth Fund EQUITY MARVELL TECHNOLOGY GROUP LTD 2,188,066 55,115 1.63 0 MML Income & Growth Fund EQUITY QUANTA SERVICES INC 2,590,193 49,001 1.93 0 MML Income & Growth Fund EQUITY EXELON CORP 1,752,419 49,005 1.31 0 MML Income & Growth Fund EQUITY NEW YORK COMMUNITY BANCORP 1,290,542 156,051 0.96 0 MML Income & Growth Fund EQUITY JPMORGAN CHASE + CO 1,832,307 19,033 1.37 0 MML Income & Growth Fund EQUITY US BANCORP 1,945,400 54,265 1.45 0 MML Income & Growth Fund EQUITY CHEVRON CORP 1,172,160 16,280 0.87 0 MML Income & Growth Fund EQUITY ADVANCE AUTO PARTS INC 1,899,870 12,377 1.42 0 MML Income & Growth Fund EQUITY SLM CORP 1,403,720 173,513 1.05 0 MML Income & Growth Fund EQUITY COMCAST CORP CLASS A 2,275,206 49,183 1.70 0 MML Income & Growth Fund EQUITY AXIS CAPITAL HOLDINGS LTD 669,056 15,192 0.50 0 MML Income & Growth Fund EQUITY AMERICAN CAMPUS COMMUNITIES 2,219,934 63,572 1.65 0 MML Series Investment Fund and MML Series Investment Fund II Portfolio Holdings As of 9/30/2020

Transcript of Fund Name Asset Class Security Name Base Market …...Fund Name Asset Class Security Name Base...

Page 1: Fund Name Asset Class Security Name Base Market …...Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity Date MML Income

Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Income & Growth Fund EQUITY ELEMENT SOLUTIONS INC 2,242,319 213,351 1.67 0MML Income & Growth Fund EQUITY CORTEVA INC 2,100,912 72,923 1.57 0MML Income & Growth Fund EQUITY DUPONT DE NEMOURS INC 2,023,855 36,479 1.51 0MML Income & Growth Fund EQUITY ENVISTA HOLDINGS CORP 1,674,044 67,830 1.25 0MML Income & Growth Fund EQUITY RAYTHEON TECHNOLOGIES CORP 1,596,332 27,743 1.19 0MML Income & Growth Fund CASH EQUIVALENT FIXED INC CLEARING CORP.REPO 872,996 872,996 0.65 0 10/1/2020MML Income & Growth Fund EQUITY NORTHERN TRUST CORP 1,261,321 16,177 0.94 0MML Income & Growth Fund EQUITY EDISON INTERNATIONAL 1,653,113 32,516 1.23 0MML Income & Growth Fund EQUITY HUMANA INC 1,537,187 3,714 1.15 0MML Income & Growth Fund EQUITY LENNAR CORP A 2,560,178 31,344 1.91 0MML Income & Growth Fund EQUITY VALERO ENERGY CORP 1,030,929 23,798 0.77 0MML Income & Growth Fund EQUITY HOLOGIC INC 1,262,332 18,991 0.94 0MML Income & Growth Fund EQUITY HUNT (JB) TRANSPRT SVCS INC 2,199,265 17,402 1.64 0MML Income & Growth Fund EQUITY AARON S INC 2,493,393 44,014 1.86 0MML Income & Growth Fund EQUITY COGNIZANT TECH SOLUTIONS A 2,403,598 34,624 1.79 0MML Income & Growth Fund EQUITY WABTEC CORP 1,875,707 30,312 1.40 0MML Income & Growth Fund EQUITY GENERAL DYNAMICS CORP 1,844,718 13,326 1.37 0MML Income & Growth Fund EQUITY CVS HEALTH CORP 1,734,889 29,707 1.29 0MML Income & Growth Fund EQUITY ORACLE CORP 1,943,056 32,547 1.45 0MML Income & Growth Fund EQUITY WELLS FARGO + CO 1,379,003 58,656 1.03 0MML Income & Growth Fund EQUITY EMERSON ELECTRIC CO 2,150,630 32,799 1.60 0MML Income & Growth Fund EQUITY LOWE S COS INC 2,026,477 12,218 1.51 0MML Income & Growth Fund EQUITY TEXAS INSTRUMENTS INC 2,176,976 15,246 1.62 0MML Income & Growth Fund EQUITY AMERICAN EXPRESS CO 1,947,557 19,427 1.45 0MML Income & Growth Fund EQUITY MARRIOTT INTERNATIONAL CL A 1,253,348 13,538 0.93 0MML Income & Growth Fund EQUITY DEERE + CO 3,100,825 13,991 2.31 0MML Income & Growth Fund EQUITY AIR PRODUCTS + CHEMICALS INC 2,388,539 8,019 1.78 0MML Income & Growth Fund EQUITY GOLDMAN SACHS GROUP INC 2,020,552 10,054 1.51 0MML Income & Growth Fund EQUITY QUALCOMM INC 2,101,765 17,860 1.57 0MML Income & Growth Fund EQUITY MGM RESORTS INTERNATIONAL 2,081,453 95,699 1.55 0MML Income & Growth Fund EQUITY UNITEDHEALTH GROUP INC 1,925,803 6,177 1.43 0MML Income & Growth Fund EQUITY JACOBS ENGINEERING GROUP INC 1,926,276 20,764 1.44 0MML Income & Growth Fund EQUITY MICROCHIP TECHNOLOGY INC 2,226,193 21,664 1.66 0MML Income & Growth Fund EQUITY MARVELL TECHNOLOGY GROUP LTD 2,188,066 55,115 1.63 0MML Income & Growth Fund EQUITY QUANTA SERVICES INC 2,590,193 49,001 1.93 0MML Income & Growth Fund EQUITY EXELON CORP 1,752,419 49,005 1.31 0MML Income & Growth Fund EQUITY NEW YORK COMMUNITY BANCORP 1,290,542 156,051 0.96 0MML Income & Growth Fund EQUITY JPMORGAN CHASE + CO 1,832,307 19,033 1.37 0MML Income & Growth Fund EQUITY US BANCORP 1,945,400 54,265 1.45 0MML Income & Growth Fund EQUITY CHEVRON CORP 1,172,160 16,280 0.87 0MML Income & Growth Fund EQUITY ADVANCE AUTO PARTS INC 1,899,870 12,377 1.42 0MML Income & Growth Fund EQUITY SLM CORP 1,403,720 173,513 1.05 0MML Income & Growth Fund EQUITY COMCAST CORP CLASS A 2,275,206 49,183 1.70 0MML Income & Growth Fund EQUITY AXIS CAPITAL HOLDINGS LTD 669,056 15,192 0.50 0MML Income & Growth Fund EQUITY AMERICAN CAMPUS COMMUNITIES 2,219,934 63,572 1.65 0

MML Series Investment Fund and MML Series Investment Fund II Portfolio HoldingsAs of 9/30/2020

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Income & Growth Fund EQUITY LAS VEGAS SANDS CORP 2,007,547 43,025 1.50 0MML Income & Growth Fund EQUITY HESS CORP 1,552,761 37,937 1.16 0MML Income & Growth Fund EQUITY OWENS CORNING 2,394,588 34,800 1.78 0MML Income & Growth Fund EQUITY AECOM 2,078,276 49,672 1.55 0MML Income & Growth Fund EQUITY BANK OF NEW YORK MELLON CORP 1,244,722 36,247 0.93 0MML Income & Growth Fund EQUITY AMERICAN INTERNATIONAL GROUP 1,871,544 67,982 1.39 0MML Income & Growth Fund EQUITY DOLLAR GENERAL CORP 730,106 3,483 0.54 0MML Income & Growth Fund EQUITY BERKSHIRE HATHAWAY INC CL B 1,139,229 5,350 0.85 0MML Income & Growth Fund EQUITY STANLEY BLACK + DECKER INC 2,670,299 16,463 1.99 0MML Income & Growth Fund EQUITY CITIGROUP INC 1,334,772 30,962 0.99 0MML Income & Growth Fund EQUITY MARRIOTT VACATIONS WORLD 2,099,800 23,123 1.56 0MML Income & Growth Fund EQUITY PHILLIPS 66 1,367,850 26,386 1.02 0MML Income & Growth Fund EQUITY SEAWORLD ENTERTAINMENT INC 1,881,761 95,424 1.40 0MML Income & Growth Fund EQUITY ARAMARK 2,147,819 81,203 1.60 0MML Income & Growth Fund EQUITY NAVIENT CORP 703,141 83,212 0.52 0MML Income & Growth Fund EQUITY FIDELITY NATIONAL FINANCIAL 1,634,664 52,209 1.22 0MML Income & Growth Fund EQUITY ANTHEM INC 2,006,099 7,469 1.49 0MML Income & Growth Fund EQUITY MEDTRONIC PLC 1,919,402 18,470 1.43 0MML Income & Growth Fund EQUITY BWX TECHNOLOGIES INC 1,764,136 31,329 1.31 0MML Income & Growth Fund EQUITY LIVANOVA PLC 835,164 18,473 0.62 0MML Income & Growth Fund EQUITY WILLIS TOWERS WATSON PLC 2,724,057 13,045 2.03 0MML Income & Growth Fund EQUITY CHUBB LTD 1,294,970 11,152 0.96 0MML Income & Growth Fund EQUITY MGM GROWTH PROPERTIES LLC A 2,944,783 105,246 2.19 0MML Income & Growth Fund EQUITY COCA COLA EUROPEAN PARTNERS 2,221,834 57,249 1.66 0MML Income & Growth Fund EQUITY ALTICE USA INC A 1,691,014 65,039 1.26 0MML Income & Growth Fund EQUITY VICI PROPERTIES INC 2,088,787 89,379 1.56 0MML Income & Growth Fund EQUITY BROADCOM INC 2,972,487 8,159 2.21 0MML Income & Growth Fund EQUITY LINDE PLC 638,188 2,680 0.48 0MML Mid Cap Growth Fund CASH EQUIVALENT FIXED INC CLEARING CORP.REPO 381,725 381,725 0.28 0 10/1/2020MML Mid Cap Growth Fund EQUITY MEDALLIA INC 3,932,851 143,430 2.87 0MML Mid Cap Growth Fund EQUITY VAIL RESORTS INC 4,164,926 19,465 3.03 0MML Mid Cap Growth Fund EQUITY ABIOMED INC 2,634,009 9,507 1.92 0MML Mid Cap Growth Fund EQUITY IDEXX LABORATORIES INC 7,172,292 18,245 5.23 0MML Mid Cap Growth Fund EQUITY INCYTE CORP 3,858,910 43,001 2.81 0MML Mid Cap Growth Fund EQUITY TAKE TWO INTERACTIVE SOFTWRE 5,923,963 35,855 4.32 0MML Mid Cap Growth Fund EQUITY KLA CORP 5,875,166 30,325 4.28 0MML Mid Cap Growth Fund EQUITY BLUEBIRD BIO INC 2,321,415 43,029 1.69 0MML Mid Cap Growth Fund EQUITY BWX TECHNOLOGIES INC 6,803,318 120,819 4.96 0MML Mid Cap Growth Fund EQUITY TRADEWEB MARKETS INC CLASS A 2,662,664 45,908 1.94 0MML Mid Cap Growth Fund EQUITY HEXCEL CORP 3,059,458 91,191 2.23 0MML Mid Cap Growth Fund EQUITY HUNT (JB) TRANSPRT SVCS INC 4,620,453 36,560 3.37 0MML Mid Cap Growth Fund EQUITY TYLER TECHNOLOGIES INC 2,853,661 8,187 2.08 0MML Mid Cap Growth Fund EQUITY METTLER TOLEDO INTERNATIONAL 6,016,623 6,230 4.38 0MML Mid Cap Growth Fund EQUITY DOMINO S PIZZA INC 4,547,519 10,693 3.31 0MML Mid Cap Growth Fund EQUITY MONOLITHIC POWER SYSTEMS INC 4,349,334 15,555 3.17 0MML Mid Cap Growth Fund EQUITY SS+C TECHNOLOGIES HOLDINGS 5,625,031 92,945 4.10 0MML Mid Cap Growth Fund EQUITY FORTUNE BRANDS HOME + SECURI 3,268,380 37,776 2.38 0MML Mid Cap Growth Fund EQUITY GUIDEWIRE SOFTWARE INC 3,468,542 33,265 2.53 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Mid Cap Growth Fund EQUITY BRIGHT HORIZONS FAMILY SOLUT 5,311,669 34,936 3.87 0MML Mid Cap Growth Fund EQUITY ICON PLC 4,393,159 22,990 3.20 0MML Mid Cap Growth Fund EQUITY CDW CORP/DE 6,007,219 50,257 4.38 0MML Mid Cap Growth Fund EQUITY BURLINGTON STORES INC 6,287,394 30,508 4.58 0MML Mid Cap Growth Fund EQUITY ARAMARK 4,286,619 162,065 3.12 0MML Mid Cap Growth Fund EQUITY ETSY INC 3,054,251 25,111 2.23 0MML Mid Cap Growth Fund EQUITY TRANSUNION 4,411,441 52,436 3.21 0MML Mid Cap Growth Fund EQUITY PENUMBRA INC 2,325,368 11,963 1.69 0MML Mid Cap Growth Fund EQUITY SBA COMMUNICATIONS CORP 3,600,416 11,305 2.62 0MML Mid Cap Growth Fund EQUITY HAMILTON LANE INC CLASS A 5,289,986 81,901 3.85 0MML Mid Cap Growth Fund EQUITY AVALARA INC 2,593,152 20,364 1.89 0MML Mid Cap Growth Fund EQUITY SLACK TECHNOLOGIES INC CL A 2,088,123 77,741 1.52 0MML Mid Cap Growth Fund EQUITY SEAGEN INC 4,071,135 20,804 2.97 0MML Equity Index Fund EQUITY MARTIN MARIETTA MATERIALS 313,735 1,333 0.05 0MML Equity Index Fund EQUITY AGILENT TECHNOLOGIES INC 662,873 6,567 0.11 0MML Equity Index Fund EQUITY MICROCHIP TECHNOLOGY INC 552,129 5,373 0.09 0MML Equity Index Fund EQUITY STARBUCKS CORP 2,140,439 24,912 0.36 0MML Equity Index Fund EQUITY LEGGETT + PLATT INC 117,540 2,855 0.02 0MML Equity Index Fund EQUITY ILLUMINA INC 961,239 3,110 0.16 0MML Equity Index Fund EQUITY MOODY S CORP 996,214 3,437 0.17 0MML Equity Index Fund EQUITY GLOBAL PAYMENTS INC 1,131,362 6,371 0.19 0MML Equity Index Fund EQUITY ALIGN TECHNOLOGY INC 499,879 1,527 0.08 0MML Equity Index Fund EQUITY ZIMMER BIOMET HOLDINGS INC 599,833 4,406 0.10 0MML Equity Index Fund EQUITY CENTENE CORP 720,026 12,344 0.12 0MML Equity Index Fund EQUITY YUM BRANDS INC 585,690 6,415 0.10 0MML Equity Index Fund EQUITY NETFLIX INC 4,698,782 9,397 0.78 0MML Equity Index Fund EQUITY SKYWORKS SOLUTIONS INC 517,107 3,554 0.09 0MML Equity Index Fund EQUITY CENTERPOINT ENERGY INC 225,679 11,663 0.04 0MML Equity Index Fund EQUITY WYNN RESORTS LTD 149,221 2,078 0.02 0MML Equity Index Fund EQUITY INTUITIVE SURGICAL INC 1,768,883 2,493 0.29 0MML Equity Index Fund EQUITY SALESFORCE.COM INC 4,873,346 19,391 0.81 0MML Equity Index Fund EQUITY DOMINO S PIZZA INC 356,385 838 0.06 0MML Equity Index Fund EQUITY DEXCOM INC 840,537 2,039 0.14 0MML Equity Index Fund EQUITY CHIPOTLE MEXICAN GRILL INC 740,007 595 0.12 0MML Equity Index Fund EQUITY FIDELITY NATIONAL INFO SERV 1,942,436 13,195 0.32 0MML Equity Index Fund EQUITY HESS CORP 237,721 5,808 0.04 0MML Equity Index Fund EQUITY DELTA AIR LINES INC 415,705 13,594 0.07 0MML Equity Index Fund EQUITY DISCOVER FINANCIAL SERVICES 376,841 6,522 0.06 0MML Equity Index Fund EQUITY CME GROUP INC 1,278,248 7,640 0.21 0MML Equity Index Fund EQUITY CONCHO RESOURCES INC 185,128 4,196 0.03 0MML Equity Index Fund EQUITY VISA INC CLASS A SHARES 7,183,922 35,925 1.20 0MML Equity Index Fund EQUITY ACTIVISION BLIZZARD INC 1,331,223 16,445 0.22 0MML Equity Index Fund EQUITY AMERICAN INTERNATIONAL GROUP 504,955 18,342 0.08 0MML Equity Index Fund EQUITY ACCENTURE PLC CL A 3,063,520 13,556 0.51 0MML Equity Index Fund EQUITY VERISK ANALYTICS INC 640,246 3,455 0.11 0MML Equity Index Fund EQUITY DOLLAR GENERAL CORP 1,112,244 5,306 0.19 0MML Equity Index Fund EQUITY BERKSHIRE HATHAWAY INC CL B 8,995,437 42,244 1.50 0MML Equity Index Fund EQUITY FIRST REPUBLIC BANK/CA 400,468 3,672 0.07 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Equity Index Fund EQUITY FLEETCOR TECHNOLOGIES INC 427,151 1,794 0.07 0MML Equity Index Fund EQUITY MOTOROLA SOLUTIONS INC 566,868 3,615 0.09 0MML Equity Index Fund EQUITY KINDER MORGAN INC 510,166 41,376 0.09 0MML Equity Index Fund EQUITY TE CONNECTIVITY LTD 686,135 7,020 0.11 0MML Equity Index Fund EQUITY CITIGROUP INC 1,910,937 44,327 0.32 0MML Equity Index Fund EQUITY MARATHON PETROLEUM CORP 406,271 13,847 0.07 0MML Equity Index Fund EQUITY ESSEX PROPERTY TRUST INC 278,496 1,387 0.05 0MML Equity Index Fund EQUITY NVIDIA CORP 7,115,419 13,147 1.19 0MML Equity Index Fund EQUITY BECTON DICKINSON AND CO 1,436,799 6,175 0.24 0MML Equity Index Fund EQUITY LUMEN TECHNOLOGIES INC 213,141 21,124 0.04 0MML Equity Index Fund EQUITY CLOROX COMPANY 564,937 2,688 0.09 0MML Equity Index Fund EQUITY FRANKLIN RESOURCES INC 115,588 5,680 0.02 0MML Equity Index Fund EQUITY PROCTER + GAMBLE CO/THE 7,371,891 53,039 1.23 0MML Equity Index Fund EQUITY APPLE INC 39,673,263 342,572 6.61 0MML Equity Index Fund EQUITY BOSTON SCIENTIFIC CORP 1,163,686 30,455 0.19 0MML Equity Index Fund EQUITY MICROSOFT CORP 33,919,078 161,266 5.66 0MML Equity Index Fund EQUITY BAXTER INTERNATIONAL INC 866,847 10,779 0.14 0MML Equity Index Fund EQUITY EDWARDS LIFESCIENCES CORP 1,056,657 13,238 0.18 0MML Equity Index Fund EQUITY ABBOTT LABORATORIES 4,105,176 37,721 0.68 0MML Equity Index Fund EQUITY SYSCO CORP 673,905 10,831 0.11 0MML Equity Index Fund EQUITY TEXAS INSTRUMENTS INC 2,787,118 19,519 0.46 0MML Equity Index Fund EQUITY CADENCE DESIGN SYS INC 633,062 5,937 0.11 0MML Equity Index Fund EQUITY COSTCO WHOLESALE CORP 3,339,485 9,407 0.56 0MML Equity Index Fund EQUITY ELI LILLY + CO 2,503,906 16,916 0.42 0MML Equity Index Fund EQUITY MCDONALD S CORP 3,480,453 15,857 0.58 0MML Equity Index Fund EQUITY TARGET CORP 1,679,199 10,667 0.28 0MML Equity Index Fund EQUITY UNDER ARMOUR INC CLASS C 41,190 4,186 0.01 0MML Equity Index Fund EQUITY IHS MARKIT LTD 623,683 7,944 0.10 0MML Equity Index Fund EQUITY JOHNSON CONTROLS INTERNATION 647,473 15,850 0.11 0MML Equity Index Fund EQUITY HILTON WORLDWIDE HOLDINGS IN 504,241 5,910 0.08 0MML Equity Index Fund EQUITY TECHNIPFMC PLC 57,282 9,078 0.01 0MML Equity Index Fund EQUITY SBA COMMUNICATIONS CORP 759,575 2,385 0.13 0MML Equity Index Fund EQUITY DXC TECHNOLOGY CO 98,032 5,492 0.02 0MML Equity Index Fund EQUITY BAKER HUGHES CO 186,193 14,010 0.03 0MML Equity Index Fund EQUITY TAPESTRY INC 93,014 5,951 0.02 0MML Equity Index Fund EQUITY IQVIA HOLDINGS INC 642,185 4,074 0.11 0MML Equity Index Fund EQUITY BROADCOM INC 3,121,858 8,569 0.52 0MML Equity Index Fund EQUITY EVERGY INC 246,782 4,856 0.04 0MML Equity Index Fund EQUITY CIGNA CORP 1,324,786 7,820 0.22 0MML Equity Index Fund EQUITY APARTMENT INVT + MGMT CO A 106,218 3,150 0.02 0MML Equity Index Fund EQUITY FOX CORP CLASS A 203,215 7,302 0.03 0MML Equity Index Fund EQUITY CORTEVA INC 459,087 15,935 0.08 0MML Equity Index Fund EQUITY AMCOR PLC 369,214 33,413 0.06 0MML Equity Index Fund EQUITY XEROX HOLDINGS CORP 71,232 3,795 0.01 0MML Equity Index Fund EQUITY GLOBE LIFE INC 167,311 2,094 0.03 0MML Equity Index Fund FUTURE S+P500 EMINI FUT DEC20 - 1,800 0.01 0 12/18/2020MML Equity Index Fund EQUITY NORTONLIFELOCK INC 262,230 12,583 0.04 0MML Equity Index Fund EQUITY VIACOMCBS INC CLASS B 336,036 11,997 0.06 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Equity Index Fund EQUITY TRUIST FINANCIAL CORP 1,091,655 28,690 0.18 0MML Equity Index Fund CASH EQUIVALENT TREASURY BILL 859,712 860,000 0.14 0 1/28/2021MML Equity Index Fund EQUITY HOWMET AEROSPACE INC 138,876 8,306 0.02 0MML Equity Index Fund EQUITY TRANE TECHNOLOGIES PLC 618,254 5,099 0.10 0MML Equity Index Fund EQUITY CARRIER GLOBAL CORP 529,625 17,342 0.09 0MML Equity Index Fund EQUITY OTIS WORLDWIDE CORP 541,369 8,673 0.09 0MML Equity Index Fund CASH EQUIVALENT FIXED INC CLEARING CORP.REPO 5,021,428 5,021,428 0.84 0 10/1/2020MML Equity Index Fund EQUITY RAYTHEON TECHNOLOGIES CORP 1,873,387 32,558 0.31 0MML Equity Index Fund EQUITY EQUINIX INC 1,434,365 1,887 0.24 0MML Equity Index Fund EQUITY MEDTRONIC PLC 2,975,126 28,629 0.50 0MML Equity Index Fund EQUITY MONSTER BEVERAGE CORP 630,853 7,866 0.11 0MML Equity Index Fund EQUITY WESTROCK CO 192,494 5,541 0.03 0MML Equity Index Fund EQUITY PAYPAL HOLDINGS INC 4,925,553 24,999 0.82 0MML Equity Index Fund EQUITY ALPHABET INC CL C 9,192,348 6,255 1.53 0MML Equity Index Fund EQUITY ALPHABET INC CL A 9,388,634 6,406 1.57 0MML Equity Index Fund EQUITY HEWLETT PACKARD ENTERPRISE 257,225 27,452 0.04 0MML Equity Index Fund EQUITY WILLIS TOWERS WATSON PLC 573,211 2,745 0.10 0MML Equity Index Fund EQUITY DENTSPLY SIRONA INC 205,050 4,689 0.03 0MML Equity Index Fund EQUITY S+P GLOBAL INC 1,851,320 5,134 0.31 0MML Equity Index Fund EQUITY COCA COLA CO/THE 4,067,397 82,386 0.68 0MML Equity Index Fund EQUITY NIKE INC CL B 3,328,442 26,513 0.55 0MML Equity Index Fund EQUITY ANALOG DEVICES INC 918,744 7,870 0.15 0MML Equity Index Fund EQUITY PEPSICO INC 4,090,918 29,516 0.68 0MML Equity Index Fund EQUITY AVALONBAY COMMUNITIES INC 447,572 2,997 0.07 0MML Equity Index Fund EQUITY PUBLIC STORAGE 721,836 3,241 0.12 0MML Equity Index Fund EQUITY AUTOMATIC DATA PROCESSING 1,277,449 9,158 0.21 0MML Equity Index Fund EQUITY PAYCHEX INC 544,829 6,830 0.09 0MML Equity Index Fund EQUITY EQUIFAX INC 405,743 2,586 0.07 0MML Equity Index Fund EQUITY FISERV INC 1,219,391 11,833 0.20 0MML Equity Index Fund EQUITY HALLIBURTON CO 226,299 18,780 0.04 0MML Equity Index Fund EQUITY MAXIM INTEGRATED PRODUCTS 386,121 5,711 0.06 0MML Equity Index Fund EQUITY SOUTHWEST AIRLINES CO 471,788 12,581 0.08 0MML Equity Index Fund EQUITY QUALCOMM INC 2,829,027 24,040 0.47 0MML Equity Index Fund EQUITY ROCKWELL AUTOMATION INC 544,859 2,469 0.09 0MML Equity Index Fund EQUITY VULCAN MATERIALS CO 382,223 2,820 0.06 0MML Equity Index Fund EQUITY WEYERHAEUSER CO 453,439 15,899 0.08 0MML Equity Index Fund EQUITY XILINX INC 543,195 5,211 0.09 0MML Equity Index Fund EQUITY VERISIGN INC 440,223 2,149 0.07 0MML Equity Index Fund EQUITY ADOBE INC 5,012,685 10,221 0.84 0MML Equity Index Fund EQUITY AUTODESK INC 1,078,817 4,670 0.18 0MML Equity Index Fund EQUITY VF CORP 479,597 6,827 0.08 0MML Equity Index Fund EQUITY DANAHER CORP 2,895,758 13,448 0.48 0MML Equity Index Fund EQUITY VENTAS INC 333,288 7,943 0.06 0MML Equity Index Fund EQUITY GARTNER INC 238,280 1,907 0.04 0MML Equity Index Fund EQUITY F5 NETWORKS INC 159,724 1,301 0.03 0MML Equity Index Fund EQUITY INTUIT INC 1,819,926 5,579 0.30 0MML Equity Index Fund EQUITY HUNTINGTON BANCSHARES INC 198,255 21,620 0.03 0MML Equity Index Fund EQUITY STRYKER CORP 1,449,838 6,958 0.24 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Equity Index Fund EQUITY ESTEE LAUDER COMPANIES CL A 1,048,910 4,806 0.17 0MML Equity Index Fund EQUITY CITRIX SYSTEMS INC 362,453 2,632 0.06 0MML Equity Index Fund EQUITY NORTHERN TRUST CORP 345,329 4,429 0.06 0MML Equity Index Fund EQUITY KELLOGG CO 349,044 5,404 0.06 0MML Equity Index Fund EQUITY M + T BANK CORP 252,235 2,739 0.04 0MML Equity Index Fund EQUITY PACKAGING CORP OF AMERICA 221,262 2,029 0.04 0MML Equity Index Fund EQUITY NEWMONT CORP 1,085,122 17,102 0.18 0MML Equity Index Fund EQUITY ROYAL CARIBBEAN CRUISES LTD 245,521 3,793 0.04 0MML Equity Index Fund EQUITY FIFTH THIRD BANCORP 324,597 15,225 0.05 0MML Equity Index Fund EQUITY FREEPORT MCMORAN INC 483,354 30,905 0.08 0MML Equity Index Fund EQUITY COMERICA INC 111,614 2,918 0.02 0MML Equity Index Fund EQUITY SEMPRA ENERGY 728,979 6,159 0.12 0MML Equity Index Fund EQUITY PROGRESSIVE CORP 1,181,103 12,476 0.20 0MML Equity Index Fund EQUITY MCKESSON CORP 515,894 3,464 0.09 0MML Equity Index Fund EQUITY MOHAWK INDUSTRIES INC 125,989 1,291 0.02 0MML Equity Index Fund EQUITY ROBERT HALF INTL INC 128,750 2,432 0.02 0MML Equity Index Fund EQUITY EBAY INC 737,163 14,149 0.12 0MML Equity Index Fund EQUITY ALLIANT ENERGY CORP 275,140 5,327 0.05 0MML Equity Index Fund EQUITY BORGWARNER INC 171,967 4,439 0.03 0MML Equity Index Fund EQUITY EOG RESOURCES INC 444,218 12,360 0.07 0MML Equity Index Fund EQUITY EDISON INTERNATIONAL 409,008 8,045 0.07 0MML Equity Index Fund EQUITY LINCOLN NATIONAL CORP 120,840 3,857 0.02 0MML Equity Index Fund EQUITY LOEWS CORP 175,522 5,051 0.03 0MML Equity Index Fund EQUITY NISOURCE INC 179,828 8,174 0.03 0MML Equity Index Fund EQUITY ONEOK INC 245,589 9,453 0.04 0MML Equity Index Fund EQUITY PINNACLE WEST CAPITAL 177,876 2,386 0.03 0MML Equity Index Fund EQUITY SOUTHERN CO/THE 1,220,004 22,501 0.20 0MML Equity Index Fund EQUITY UNUM GROUP 74,086 4,402 0.01 0MML Equity Index Fund EQUITY MID AMERICA APARTMENT COMM 282,686 2,438 0.05 0MML Equity Index Fund EQUITY PERKINELMER INC 299,341 2,385 0.05 0MML Equity Index Fund EQUITY REALTY INCOME CORP 446,513 7,350 0.07 0MML Equity Index Fund EQUITY EVEREST RE GROUP LTD 167,514 848 0.03 0MML Equity Index Fund EQUITY ALASKA AIR GROUP INC 97,179 2,653 0.02 0MML Equity Index Fund EQUITY ALBEMARLE CORP 203,291 2,277 0.03 0MML Equity Index Fund EQUITY ALLSTATE CORP 626,313 6,653 0.10 0MML Equity Index Fund EQUITY RALPH LAUREN CORP 70,281 1,034 0.01 0MML Equity Index Fund EQUITY EXPEDIA GROUP INC 266,084 2,902 0.04 0MML Equity Index Fund EQUITY AMERICAN TOWER CORP 2,285,074 9,453 0.38 0MML Equity Index Fund EQUITY FACEBOOK INC CLASS A 13,418,185 51,234 2.24 0MML Equity Index Fund EQUITY SERVICENOW INC 1,981,710 4,086 0.33 0MML Equity Index Fund EQUITY ABBVIE INC 3,293,822 37,605 0.55 0MML Equity Index Fund EQUITY ZOETIS INC 1,673,875 10,122 0.28 0MML Equity Index Fund EQUITY T MOBILE US INC 1,417,607 12,396 0.24 0MML Equity Index Fund EQUITY INTERCONTINENTAL EXCHANGE IN 1,196,298 11,957 0.20 0MML Equity Index Fund EQUITY SYNCHRONY FINANCIAL 302,264 11,550 0.05 0MML Equity Index Fund EQUITY CATALENT INC 298,953 3,490 0.05 0MML Equity Index Fund EQUITY KEYSIGHT TECHNOLOGIES IN 392,651 3,975 0.07 0MML Equity Index Fund EQUITY QORVO INC 313,494 2,430 0.05 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Equity Index Fund EQUITY IRON MOUNTAIN INC 164,866 6,154 0.03 0MML Equity Index Fund EQUITY EVERSOURCE ENERGY 609,497 7,295 0.10 0MML Equity Index Fund EQUITY MYLAN NV 163,041 10,994 0.03 0MML Equity Index Fund EQUITY ETSY INC 309,062 2,541 0.05 0MML Equity Index Fund EQUITY WEC ENERGY GROUP INC 650,684 6,715 0.11 0MML Equity Index Fund EQUITY KRAFT HEINZ CO/THE 413,310 13,800 0.07 0MML Equity Index Fund EQUITY NIELSEN HOLDINGS PLC 109,399 7,715 0.02 0MML Equity Index Fund EQUITY WELLTOWER INC 489,475 8,885 0.08 0MML Equity Index Fund EQUITY HP INC 555,723 29,264 0.09 0MML Equity Index Fund EQUITY CHUBB LTD 1,116,726 9,617 0.19 0MML Equity Index Fund EQUITY TYLER TECHNOLOGIES INC 298,367 856 0.05 0MML Equity Index Fund EQUITY ALEXION PHARMACEUTICALS INC 534,045 4,667 0.09 0MML Equity Index Fund EQUITY ANSYS INC 597,849 1,827 0.10 0MML Equity Index Fund EQUITY APPLIED MATERIALS INC 1,156,838 19,459 0.19 0MML Equity Index Fund EQUITY ATMOS ENERGY CORP 250,159 2,617 0.04 0MML Equity Index Fund EQUITY CHURCH + DWIGHT CO INC 493,289 5,264 0.08 0MML Equity Index Fund EQUITY COGNIZANT TECH SOLUTIONS A 803,745 11,578 0.13 0MML Equity Index Fund EQUITY FLIR SYSTEMS INC 101,527 2,832 0.02 0MML Equity Index Fund EQUITY FLOWSERVE CORP 76,849 2,816 0.01 0MML Equity Index Fund EQUITY JACK HENRY + ASSOCIATES INC 266,648 1,640 0.04 0MML Equity Index Fund EQUITY ROLLINS INC 170,157 3,140 0.03 0MML Equity Index Fund EQUITY TERADYNE INC 280,732 3,533 0.05 0MML Equity Index Fund EQUITY VARIAN MEDICAL SYSTEMS INC 334,540 1,945 0.06 0MML Equity Index Fund EQUITY ZEBRA TECHNOLOGIES CORP CL A 287,047 1,137 0.05 0MML Equity Index Fund EQUITY ALEXANDRIA REAL ESTATE EQUIT 399,840 2,499 0.07 0MML Equity Index Fund EQUITY AMPHENOL CORP CL A 687,298 6,348 0.11 0MML Equity Index Fund EQUITY FEDERAL REALTY INVS TRUST 107,222 1,460 0.02 0MML Equity Index Fund EQUITY GILEAD SCIENCES INC 1,687,994 26,713 0.28 0MML Equity Index Fund EQUITY METTLER TOLEDO INTERNATIONAL 494,464 512 0.08 0MML Equity Index Fund EQUITY NVR INC 302,151 74 0.05 0MML Equity Index Fund EQUITY UNIVERSAL HEALTH SERVICES B 177,974 1,663 0.03 0MML Equity Index Fund EQUITY CONAGRA BRANDS INC 372,455 10,430 0.06 0MML Equity Index Fund EQUITY GENERAL DYNAMICS CORP 685,921 4,955 0.11 0MML Equity Index Fund EQUITY HASBRO INC 225,743 2,729 0.04 0MML Equity Index Fund EQUITY AMEREN CORPORATION 417,859 5,284 0.07 0MML Equity Index Fund EQUITY AMERICAN ELECTRIC POWER 863,396 10,564 0.14 0MML Equity Index Fund EQUITY APACHE CORP 77,351 8,168 0.01 0MML Equity Index Fund EQUITY ARCHER DANIELS MIDLAND CO 552,022 11,874 0.09 0MML Equity Index Fund EQUITY WR BERKLEY CORP 184,673 3,020 0.03 0MML Equity Index Fund EQUITY CMS ENERGY CORP 376,198 6,126 0.06 0MML Equity Index Fund EQUITY CSX CORP 1,265,710 16,296 0.21 0MML Equity Index Fund EQUITY CONSOLIDATED EDISON INC 553,936 7,120 0.09 0MML Equity Index Fund EQUITY CUMMINS INC 664,309 3,146 0.11 0MML Equity Index Fund EQUITY DR HORTON INC 533,267 7,051 0.09 0MML Equity Index Fund EQUITY DEVON ENERGY CORP 78,480 8,296 0.01 0MML Equity Index Fund EQUITY DOMINION ENERGY INC 1,412,847 17,900 0.24 0MML Equity Index Fund EQUITY EASTMAN CHEMICAL CO 223,970 2,867 0.04 0MML Equity Index Fund EQUITY FMC CORP 293,900 2,775 0.05 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Equity Index Fund EQUITY FIRSTENERGY CORP 333,151 11,604 0.06 0MML Equity Index Fund EQUITY HUMANA INC 1,166,342 2,818 0.19 0MML Equity Index Fund EQUITY INTERNATIONAL PAPER CO 339,928 8,385 0.06 0MML Equity Index Fund EQUITY KEYCORP 248,645 20,842 0.04 0MML Equity Index Fund EQUITY LAM RESEARCH CORP 1,029,420 3,103 0.17 0MML Equity Index Fund EQUITY LENNAR CORP A 477,256 5,843 0.08 0MML Equity Index Fund EQUITY LOCKHEED MARTIN CORP 2,009,537 5,243 0.34 0MML Equity Index Fund EQUITY NORFOLK SOUTHERN CORP 1,162,822 5,434 0.19 0MML Equity Index Fund EQUITY NORTHROP GRUMMAN CORP 1,042,379 3,304 0.17 0MML Equity Index Fund EQUITY OCCIDENTAL PETROLEUM CORP 178,008 17,783 0.03 0MML Equity Index Fund EQUITY PPL CORP 445,183 16,361 0.07 0MML Equity Index Fund EQUITY PIONEER NATURAL RESOURCES CO 299,589 3,484 0.05 0MML Equity Index Fund EQUITY CHARTER COMMUNICATIONS INC A 1,989,147 3,186 0.33 0MML Equity Index Fund EQUITY FORTIVE CORP 546,959 7,177 0.09 0MML Equity Index Fund EQUITY LAMB WESTON HOLDINGS INC 204,907 3,092 0.03 0MML Equity Index Fund EQUITY APTIV PLC 527,435 5,753 0.09 0MML Equity Index Fund EQUITY BOOKING HOLDINGS INC 1,491,713 872 0.25 0MML Equity Index Fund EQUITY LINDE PLC 2,664,913 11,191 0.44 0MML Equity Index Fund EQUITY DOW INC 742,167 15,774 0.12 0MML Equity Index Fund EQUITY FOX CORP CLASS B 93,196 3,332 0.02 0MML Equity Index Fund EQUITY STERIS PLC 320,490 1,819 0.05 0MML Equity Index Fund EQUITY DUPONT DE NEMOURS INC 866,875 15,625 0.14 0MML Equity Index Fund EQUITY L3HARRIS TECHNOLOGIES INC 782,453 4,607 0.13 0MML Equity Index Fund EQUITY HEALTHPEAK PROPERTIES INC 312,062 11,494 0.05 0MML Equity Index Fund EQUITY INGERSOLL RAND INC 281,204 7,899 0.05 0MML Equity Index Fund EQUITY AON PLC CLASS A 1,018,297 4,936 0.17 0MML Equity Index Fund EQUITY VERIZON COMMUNICATIONS INC 5,246,483 88,191 0.87 0MML Equity Index Fund EQUITY KANSAS CITY SOUTHERN 362,926 2,007 0.06 0MML Equity Index Fund EQUITY JUNIPER NETWORKS INC 150,887 7,018 0.03 0MML Equity Index Fund EQUITY QUANTA SERVICES INC 155,408 2,940 0.03 0MML Equity Index Fund EQUITY FORD MOTOR CO 554,545 83,265 0.09 0MML Equity Index Fund EQUITY XCEL ENERGY INC 771,946 11,186 0.13 0MML Equity Index Fund EQUITY HONEYWELL INTERNATIONAL INC 2,462,072 14,957 0.41 0MML Equity Index Fund EQUITY AES CORP 257,814 14,236 0.04 0MML Equity Index Fund EQUITY AMGEN INC 3,172,171 12,481 0.53 0MML Equity Index Fund EQUITY BEST BUY CO INC 545,877 4,905 0.09 0MML Equity Index Fund EQUITY CVS HEALTH CORP 1,628,250 27,881 0.27 0MML Equity Index Fund EQUITY CAPITAL ONE FINANCIAL CORP 700,779 9,752 0.12 0MML Equity Index Fund EQUITY CISCO SYSTEMS INC 3,553,293 90,208 0.59 0MML Equity Index Fund EQUITY WALT DISNEY CO/THE 4,777,700 38,505 0.80 0MML Equity Index Fund EQUITY EXXON MOBIL CORP 3,092,172 90,072 0.52 0MML Equity Index Fund EQUITY GAP INC/THE 74,149 4,354 0.01 0MML Equity Index Fund EQUITY GENERAL ELECTRIC CO 1,161,733 186,474 0.19 0MML Equity Index Fund EQUITY HOME DEPOT INC 6,370,667 22,940 1.06 0MML Equity Index Fund EQUITY MICRON TECHNOLOGY INC 1,111,449 23,668 0.19 0MML Equity Index Fund EQUITY MORGAN STANLEY 1,233,747 25,517 0.21 0MML Equity Index Fund EQUITY OMNICOM GROUP 226,215 4,570 0.04 0MML Equity Index Fund EQUITY ORACLE CORP 2,459,401 41,196 0.41 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Equity Index Fund EQUITY PFIZER INC 4,345,831 118,415 0.72 0MML Equity Index Fund EQUITY WALMART INC 4,139,937 29,590 0.69 0MML Equity Index Fund EQUITY WATERS CORP 259,472 1,326 0.04 0MML Equity Index Fund EQUITY WELLS FARGO + CO 2,062,720 87,738 0.34 0MML Equity Index Fund EQUITY GENUINE PARTS CO 293,695 3,086 0.05 0MML Equity Index Fund EQUITY INTL FLAVORS + FRAGRANCES 280,411 2,290 0.05 0MML Equity Index Fund EQUITY KIMBERLY CLARK CORP 1,073,193 7,268 0.18 0MML Equity Index Fund EQUITY MASCO CORP 306,964 5,568 0.05 0MML Equity Index Fund EQUITY PNC FINANCIAL SERVICES GROUP 992,377 9,029 0.17 0MML Equity Index Fund EQUITY BANK OF AMERICA CORP 3,912,794 162,424 0.65 0MML Equity Index Fund EQUITY EMERSON ELECTRIC CO 834,641 12,729 0.14 0MML Equity Index Fund EQUITY WW GRAINGER INC 341,786 958 0.06 0MML Equity Index Fund EQUITY INTL BUSINESS MACHINES CORP 2,308,202 18,971 0.38 0MML Equity Index Fund EQUITY TELEDYNE TECHNOLOGIES INC 242,894 783 0.04 0MML Equity Index Fund CASH US DOLLAR 18,141 18,141 0.00 0MML Equity Index Fund EQUITY BRISTOL MYERS SQUIBB CO 2,895,307 48,023 0.48 0MML Equity Index Fund EQUITY ILLINOIS TOOL WORKS 1,184,764 6,132 0.20 0MML Equity Index Fund EQUITY LOWE S COS INC 2,670,512 16,101 0.45 0MML Equity Index Fund EQUITY MARSH + MCLENNAN COS 1,238,187 10,795 0.21 0MML Equity Index Fund EQUITY NUCOR CORP 288,943 6,441 0.05 0MML Equity Index Fund EQUITY TEXTRON INC 175,289 4,857 0.03 0MML Equity Index Fund EQUITY INTEL CORP 4,692,614 90,626 0.78 0MML Equity Index Fund EQUITY JOHNSON + JOHNSON 8,353,806 56,111 1.39 0MML Equity Index Fund EQUITY STATE STREET CORP 447,170 7,537 0.07 0MML Equity Index Fund EQUITY SYNOPSYS INC 691,155 3,230 0.12 0MML Equity Index Fund EQUITY WASTE MANAGEMENT INC 937,048 8,280 0.16 0MML Equity Index Fund EQUITY WHIRLPOOL CORP 244,390 1,329 0.04 0MML Equity Index Fund EQUITY AMERICAN EXPRESS CO 1,392,673 13,892 0.23 0MML Equity Index Fund EQUITY MARRIOTT INTERNATIONAL CL A 524,651 5,667 0.09 0MML Equity Index Fund EQUITY CARDINAL HEALTH INC 293,391 6,249 0.05 0MML Equity Index Fund EQUITY INTERPUBLIC GROUP OF COS INC 137,661 8,258 0.02 0MML Equity Index Fund EQUITY PUBLIC SERVICE ENTERPRISE GP 591,161 10,766 0.10 0MML Equity Index Fund EQUITY PULTEGROUP INC 263,992 5,703 0.04 0MML Equity Index Fund EQUITY MARATHON OIL CORP 70,164 17,155 0.01 0MML Equity Index Fund EQUITY UNITED RENTALS INC 269,254 1,543 0.04 0MML Equity Index Fund EQUITY VALERO ENERGY CORP 375,758 8,674 0.06 0MML Equity Index Fund EQUITY BIO RAD LABORATORIES A 236,081 458 0.04 0MML Equity Index Fund EQUITY HUNT (JB) TRANSPRT SVCS INC 223,945 1,772 0.04 0MML Equity Index Fund EQUITY OLD DOMINION FREIGHT LINE 370,343 2,047 0.06 0MML Equity Index Fund EQUITY QUEST DIAGNOSTICS INC 328,014 2,865 0.05 0MML Equity Index Fund EQUITY HENRY SCHEIN INC 179,632 3,056 0.03 0MML Equity Index Fund EQUITY TRACTOR SUPPLY COMPANY 355,053 2,477 0.06 0MML Equity Index Fund EQUITY DISCOVERY INC C 129,674 6,616 0.02 0MML Equity Index Fund EQUITY MERCK + CO. INC. 4,470,922 53,899 0.75 0MML Equity Index Fund EQUITY FORTINET INC 338,468 2,873 0.06 0MML Equity Index Fund EQUITY STANLEY BLACK + DECKER INC 551,480 3,400 0.09 0MML Equity Index Fund EQUITY LYONDELLBASELL INDU CL A 385,298 5,466 0.06 0MML Equity Index Fund EQUITY E TRADE FINANCIAL CORP 236,987 4,735 0.04 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Equity Index Fund EQUITY KROGER CO 561,617 16,562 0.09 0MML Equity Index Fund EQUITY UNITED PARCEL SERVICE CL B 2,510,614 15,067 0.42 0MML Equity Index Fund EQUITY SHERWIN WILLIAMS CO/THE 1,215,811 1,745 0.20 0MML Equity Index Fund EQUITY NEWELL BRANDS INC 137,486 8,012 0.02 0MML Equity Index Fund EQUITY SNAP ON INC 169,935 1,155 0.03 0MML Equity Index Fund EQUITY DEERE + CO 1,479,824 6,677 0.25 0MML Equity Index Fund EQUITY KIMCO REALTY CORP 103,457 9,188 0.02 0MML Equity Index Fund EQUITY TIFFANY + CO 266,455 2,300 0.04 0MML Equity Index Fund EQUITY VORNADO REALTY TRUST 111,917 3,320 0.02 0MML Equity Index Fund EQUITY ZIONS BANCORP NA 103,614 3,546 0.02 0MML Equity Index Fund EQUITY BOSTON PROPERTIES INC 241,864 3,012 0.04 0MML Equity Index Fund EQUITY EQUITY RESIDENTIAL 374,452 7,295 0.06 0MML Equity Index Fund EQUITY HOST HOTELS + RESORTS INC 161,893 15,004 0.03 0MML Equity Index Fund EQUITY SL GREEN REALTY CORP 71,966 1,552 0.01 0MML Equity Index Fund EQUITY DUKE REALTY CORP 290,920 7,884 0.05 0MML Equity Index Fund EQUITY SIMON PROPERTY GROUP INC 421,390 6,515 0.07 0MML Equity Index Fund EQUITY AIR PRODUCTS + CHEMICALS INC 1,401,431 4,705 0.23 0MML Equity Index Fund EQUITY CATERPILLAR INC 1,720,893 11,538 0.29 0MML Equity Index Fund EQUITY COLGATE PALMOLIVE CO 1,409,608 18,271 0.24 0MML Equity Index Fund EQUITY ECOLAB INC 1,058,952 5,299 0.18 0MML Equity Index Fund EQUITY GENERAL MILLS INC 802,765 13,015 0.13 0MML Equity Index Fund EQUITY GOLDMAN SACHS GROUP INC 1,472,507 7,327 0.25 0MML Equity Index Fund EQUITY ROSS STORES INC 707,552 7,582 0.12 0MML Equity Index Fund EQUITY SCHLUMBERGER LTD 461,416 29,654 0.08 0MML Equity Index Fund EQUITY ADVANCED MICRO DEVICES 2,050,980 25,015 0.34 0MML Equity Index Fund EQUITY AUTOZONE INC 585,287 497 0.10 0MML Equity Index Fund EQUITY AVERY DENNISON CORP 227,811 1,782 0.04 0MML Equity Index Fund EQUITY BOEING CO/THE 1,868,264 11,305 0.31 0MML Equity Index Fund EQUITY CORNING INC 526,792 16,254 0.09 0MML Equity Index Fund EQUITY DOVER CORP 333,579 3,079 0.06 0MML Equity Index Fund EQUITY FEDEX CORP 1,291,555 5,135 0.22 0MML Equity Index Fund EQUITY HERSHEY CO/THE 449,944 3,139 0.08 0MML Equity Index Fund EQUITY KLA CORP 641,667 3,312 0.11 0MML Equity Index Fund EQUITY PPG INDUSTRIES INC 612,720 5,019 0.10 0MML Equity Index Fund EQUITY TJX COMPANIES INC 1,421,802 25,549 0.24 0MML Equity Index Fund EQUITY WILLIAMS COS INC 507,343 25,819 0.08 0MML Equity Index Fund EQUITY HARTFORD FINANCIAL SVCS GRP 282,495 7,664 0.05 0MML Equity Index Fund EQUITY ELECTRONIC ARTS INC 802,413 6,153 0.13 0MML Equity Index Fund EQUITY AFLAC INC 512,535 14,100 0.09 0MML Equity Index Fund EQUITY METLIFE INC 610,294 16,419 0.10 0MML Equity Index Fund EQUITY MGM RESORTS INTERNATIONAL 189,834 8,728 0.03 0MML Equity Index Fund EQUITY SCHWAB (CHARLES) CORP 895,062 24,705 0.15 0MML Equity Index Fund EQUITY HORMEL FOODS CORP 293,291 5,999 0.05 0MML Equity Index Fund EQUITY MCCORMICK + CO NON VTG SHRS 513,783 2,647 0.09 0MML Equity Index Fund EQUITY UNITEDHEALTH GROUP INC 6,315,213 20,256 1.05 0MML Equity Index Fund EQUITY JACOBS ENGINEERING GROUP INC 258,272 2,784 0.04 0MML Equity Index Fund EQUITY LABORATORY CRP OF AMER HLDGS 391,978 2,082 0.07 0MML Equity Index Fund EQUITY CAMPBELL SOUP CO 208,426 4,309 0.03 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Equity Index Fund EQUITY PARKER HANNIFIN CORP 553,805 2,737 0.09 0MML Equity Index Fund EQUITY TYSON FOODS INC CL A 372,404 6,261 0.06 0MML Equity Index Fund EQUITY SEALED AIR CORP 128,383 3,308 0.02 0MML Equity Index Fund EQUITY REPUBLIC SERVICES INC 417,368 4,471 0.07 0MML Equity Index Fund EQUITY AKAMAI TECHNOLOGIES INC 384,016 3,474 0.06 0MML Equity Index Fund EQUITY IDEX CORP 294,410 1,614 0.05 0MML Equity Index Fund EQUITY BLACKROCK INC 1,703,048 3,022 0.28 0MML Equity Index Fund EQUITY PACCAR INC 628,855 7,374 0.10 0MML Equity Index Fund EQUITY NATIONAL OILWELL VARCO INC 76,294 8,421 0.01 0MML Equity Index Fund EQUITY RAYMOND JAMES FINANCIAL INC 190,049 2,612 0.03 0MML Equity Index Fund EQUITY CABOT OIL + GAS CORP 147,143 8,476 0.02 0MML Equity Index Fund EQUITY CERNER CORP 471,114 6,517 0.08 0MML Equity Index Fund EQUITY COOPER COS INC/THE 354,650 1,052 0.06 0MML Equity Index Fund EQUITY ARTHUR J GALLAGHER + CO 430,661 4,079 0.07 0MML Equity Index Fund EQUITY IDEXX LABORATORIES INC 711,136 1,809 0.12 0MML Equity Index Fund EQUITY INCYTE CORP 355,101 3,957 0.06 0MML Equity Index Fund EQUITY CONSTELLATION BRANDS INC A 677,877 3,577 0.11 0MML Equity Index Fund EQUITY NASDAQ INC 301,744 2,459 0.05 0MML Equity Index Fund EQUITY DAVITA INC 146,376 1,709 0.02 0MML Equity Index Fund EQUITY EXELON CORP 741,412 20,733 0.12 0MML Equity Index Fund EQUITY T ROWE PRICE GROUP INC 619,815 4,834 0.10 0MML Equity Index Fund EQUITY JPMORGAN CHASE + CO 6,251,485 64,937 1.04 0MML Equity Index Fund EQUITY REGENCY CENTERS CORP 127,291 3,348 0.02 0MML Equity Index Fund EQUITY US BANCORP 1,045,422 29,161 0.17 0MML Equity Index Fund EQUITY AMERISOURCEBERGEN CORP 303,069 3,127 0.05 0MML Equity Index Fund EQUITY CHEVRON CORP 2,864,016 39,778 0.48 0MML Equity Index Fund EQUITY PRINCIPAL FINANCIAL GROUP 219,270 5,445 0.04 0MML Equity Index Fund EQUITY ADVANCE AUTO PARTS INC 227,180 1,480 0.04 0MML Equity Index Fund EQUITY PRUDENTIAL FINANCIAL INC 533,377 8,397 0.09 0MML Equity Index Fund EQUITY 3M CO 1,966,210 12,275 0.33 0MML Equity Index Fund EQUITY NOBLE ENERGY INC 88,766 10,382 0.01 0MML Equity Index Fund EQUITY JM SMUCKER CO/THE 281,753 2,439 0.05 0MML Equity Index Fund EQUITY CONOCOPHILLIPS 748,883 22,804 0.12 0MML Equity Index Fund EQUITY CARMAX INC 320,398 3,486 0.05 0MML Equity Index Fund EQUITY COMCAST CORP CLASS A 4,493,789 97,142 0.75 0MML Equity Index Fund EQUITY ALTRIA GROUP INC 1,529,951 39,595 0.26 0MML Equity Index Fund EQUITY CARNIVAL CORP 167,117 11,009 0.03 0MML Equity Index Fund EQUITY LKQ CORP 164,716 5,940 0.03 0MML Equity Index Fund EQUITY BIOGEN INC 956,853 3,373 0.16 0MML Equity Index Fund EQUITY NRG ENERGY INC 159,387 5,185 0.03 0MML Equity Index Fund EQUITY ASSURANT INC 154,549 1,274 0.03 0MML Equity Index Fund EQUITY REGIONS FINANCIAL CORP 235,477 20,423 0.04 0MML Equity Index Fund EQUITY EXTRA SPACE STORAGE INC 295,399 2,761 0.05 0MML Equity Index Fund EQUITY DIGITAL REALTY TRUST INC 841,228 5,732 0.14 0MML Equity Index Fund EQUITY MARKETAXESS HOLDINGS INC 391,051 812 0.07 0MML Equity Index Fund EQUITY LAS VEGAS SANDS CORP 326,993 7,008 0.05 0MML Equity Index Fund EQUITY CELANESE CORP 272,278 2,534 0.05 0MML Equity Index Fund EQUITY MOLSON COORS BEVERAGE CO B 133,703 3,984 0.02 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Equity Index Fund EQUITY SVB FINANCIAL GROUP 265,404 1,103 0.04 0MML Equity Index Fund EQUITY CF INDUSTRIES HOLDINGS INC 139,147 4,531 0.02 0MML Equity Index Fund EQUITY AMERIPRISE FINANCIAL INC 394,830 2,562 0.07 0MML Equity Index Fund EQUITY C.H. ROBINSON WORLDWIDE INC 294,409 2,881 0.05 0MML Equity Index Fund EQUITY UNDER ARMOUR INC CLASS A 45,863 4,084 0.01 0MML Equity Index Fund EQUITY AT+T INC 4,328,673 151,830 0.72 0MML Equity Index Fund EQUITY LIVE NATION ENTERTAINMENT IN 162,664 3,019 0.03 0MML Equity Index Fund EQUITY TRANSDIGM GROUP INC 548,288 1,154 0.09 0MML Equity Index Fund EQUITY MASTERCARD INC A 6,365,374 18,823 1.06 0MML Equity Index Fund EQUITY HANESBRANDS INC 118,629 7,532 0.02 0MML Equity Index Fund EQUITY WESTERN UNION CO 188,327 8,788 0.03 0MML Equity Index Fund EQUITY IPG PHOTONICS CORP 130,707 769 0.02 0MML Equity Index Fund EQUITY TRAVELERS COS INC/THE 583,252 5,391 0.10 0MML Equity Index Fund EQUITY UDR INC 204,758 6,279 0.03 0MML Equity Index Fund EQUITY BROADRIDGE FINANCIAL SOLUTIO 324,720 2,460 0.05 0MML Equity Index Fund EQUITY PEOPLE S UNITED FINANCIAL 94,759 9,191 0.02 0MML Equity Index Fund EQUITY BANK OF NEW YORK MELLON CORP 595,730 17,348 0.10 0MML Equity Index Fund EQUITY ULTA BEAUTY INC 270,344 1,207 0.05 0MML Equity Index Fund EQUITY MSCI INC 635,425 1,781 0.11 0MML Equity Index Fund EQUITY INVESCO LTD 92,923 8,144 0.02 0MML Equity Index Fund EQUITY DISH NETWORK CORP A 152,262 5,245 0.03 0MML Equity Index Fund EQUITY DOLLAR TREE INC 461,632 5,054 0.08 0MML Equity Index Fund EQUITY PHILIP MORRIS INTERNATIONAL 2,488,543 33,185 0.41 0MML Equity Index Fund EQUITY NETAPP INC 207,539 4,734 0.03 0MML Equity Index Fund EQUITY AMERICAN WATER WORKS CO INC 558,368 3,854 0.09 0MML Equity Index Fund EQUITY DISCOVERY INC A 72,930 3,350 0.01 0MML Equity Index Fund EQUITY RESMED INC 528,862 3,085 0.09 0MML Equity Index Fund EQUITY TAKE TWO INTERACTIVE SOFTWRE 403,302 2,441 0.07 0MML Equity Index Fund EQUITY VERTEX PHARMACEUTICALS INC 1,511,899 5,556 0.25 0MML Equity Index Fund EQUITY WESTERN DIGITAL CORP 234,541 6,417 0.04 0MML Equity Index Fund EQUITY WABTEC CORP 234,958 3,797 0.04 0MML Equity Index Fund EQUITY BALL CORP 578,100 6,955 0.10 0MML Equity Index Fund EQUITY NEXTERA ENERGY INC 2,895,783 10,433 0.48 0MML Equity Index Fund EQUITY CBOE GLOBAL MARKETS INC 202,855 2,312 0.03 0MML Equity Index Fund EQUITY GARMIN LTD 299,758 3,160 0.05 0MML Equity Index Fund EQUITY SEAGATE TECHNOLOGY 234,131 4,752 0.04 0MML Equity Index Fund EQUITY UNITED AIRLINES HOLDINGS INC 215,276 6,195 0.04 0MML Equity Index Fund EQUITY GENERAL MOTORS CO 794,018 26,834 0.13 0MML Equity Index Fund EQUITY O REILLY AUTOMOTIVE INC 727,123 1,577 0.12 0MML Equity Index Fund EQUITY HCA HEALTHCARE INC 700,078 5,615 0.12 0MML Equity Index Fund EQUITY HUNTINGTON INGALLS INDUSTRIE 121,327 862 0.02 0MML Equity Index Fund EQUITY MOSAIC CO/THE 133,700 7,318 0.02 0MML Equity Index Fund EQUITY PROLOGIS INC 1,584,161 15,744 0.26 0MML Equity Index Fund EQUITY HOLLYFRONTIER CORP 63,525 3,223 0.01 0MML Equity Index Fund EQUITY PVH CORP 91,547 1,535 0.02 0MML Equity Index Fund EQUITY FORTUNE BRANDS HOME + SECURI 254,369 2,940 0.04 0MML Equity Index Fund EQUITY CBRE GROUP INC A 336,963 7,174 0.06 0MML Equity Index Fund EQUITY XYLEM INC 324,114 3,853 0.05 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Equity Index Fund EQUITY PHILLIPS 66 481,853 9,295 0.08 0MML Equity Index Fund EQUITY DUKE ENERGY CORP 1,387,647 15,669 0.23 0MML Equity Index Fund EQUITY MONDELEZ INTERNATIONAL INC A 1,748,663 30,438 0.29 0MML Equity Index Fund EQUITY DIAMONDBACK ENERGY INC 102,860 3,415 0.02 0MML Equity Index Fund EQUITY EATON CORP PLC 869,602 8,523 0.14 0MML Equity Index Fund EQUITY NORWEGIAN CRUISE LINE HOLDIN 100,247 5,859 0.02 0MML Equity Index Fund EQUITY L BRANDS INC 158,000 4,967 0.03 0MML Equity Index Fund EQUITY NEWS CORP CLASS A 115,861 8,264 0.02 0MML Equity Index Fund EQUITY NEWS CORP CLASS B 37,089 2,653 0.01 0MML Equity Index Fund EQUITY CDW CORP/DE 363,730 3,043 0.06 0MML Equity Index Fund EQUITY LEIDOS HOLDINGS INC 254,612 2,856 0.04 0MML Equity Index Fund EQUITY TWITTER INC 748,045 16,810 0.12 0MML Equity Index Fund EQUITY ALLEGION PLC 195,347 1,975 0.03 0MML Equity Index Fund EQUITY AMERICAN AIRLINES GROUP INC 132,179 10,755 0.02 0MML Equity Index Fund EQUITY PERRIGO CO PLC 133,001 2,897 0.02 0MML Equity Index Fund EQUITY PAYCOM SOFTWARE INC 324,375 1,042 0.05 0MML Equity Index Fund EQUITY PENTAIR PLC 161,156 3,521 0.03 0MML Equity Index Fund EQUITY ARISTA NETWORKS INC 241,073 1,165 0.04 0MML Equity Index Fund EQUITY CITIZENS FINANCIAL GROUP 230,377 9,113 0.04 0MML Equity Index Fund EQUITY ANTHEM INC 1,439,105 5,358 0.24 0MML Equity Index Fund EQUITY CROWN CASTLE INTL CORP 1,489,176 8,944 0.25 0MML Equity Index Fund EQUITY WALGREENS BOOTS ALLIANCE INC 550,187 15,317 0.09 0MML Equity Index Fund EQUITY EXPEDITORS INTL WASH INC 322,704 3,565 0.05 0MML Equity Index Fund EQUITY AMAZON.COM INC 28,565,279 9,072 4.76 0MML Equity Index Fund EQUITY CINTAS CORP 616,401 1,852 0.10 0MML Equity Index Fund EQUITY FASTENAL CO 551,225 12,225 0.09 0MML Equity Index Fund EQUITY TELEFLEX INC 338,377 994 0.06 0MML Equity Index Fund EQUITY BROWN FORMAN CORP CLASS B 293,974 3,903 0.05 0MML Equity Index Fund EQUITY SMITH (A.O.) CORP 151,958 2,878 0.03 0MML Equity Index Fund EQUITY WEST PHARMACEUTICAL SERVICES 433,242 1,576 0.07 0MML Equity Index Fund EQUITY DARDEN RESTAURANTS INC 280,460 2,784 0.05 0MML Equity Index Fund EQUITY ROPER TECHNOLOGIES INC 881,490 2,231 0.15 0MML Equity Index Fund EQUITY CINCINNATI FINANCIAL CORP 248,412 3,186 0.04 0MML Equity Index Fund EQUITY DTE ENERGY COMPANY 470,744 4,092 0.08 0MML Equity Index Fund EQUITY ENTERGY CORP 422,004 4,283 0.07 0MML Equity Index Fund EQUITY THERMO FISHER SCIENTIFIC INC 3,720,689 8,427 0.62 0MML Equity Index Fund EQUITY UNION PACIFIC CORP 2,847,725 14,465 0.47 0MML Equity Index Fund EQUITY COPART INC 462,599 4,399 0.08 0MML Equity Index Fund EQUITY HOLOGIC INC 367,646 5,531 0.06 0MML Equity Index Fund EQUITY REGENERON PHARMACEUTICALS 1,246,630 2,227 0.21 0MML Equity Index Fund EQUITY ABIOMED INC 266,809 963 0.04 0MML Equity Index Fund EQUITY AMETEK INC 485,668 4,886 0.08 0MML Managed Volatility Fund EQUITY ADVANCE AUTO PARTS INC 52,804 344 0.04 0MML Managed Volatility Fund EQUITY PRUDENTIAL FINANCIAL INC 123,991 1,952 0.09 0MML Managed Volatility Fund EQUITY CENTENE CORP 166,765 2,859 0.11 0MML Managed Volatility Fund EQUITY 3M CO 455,392 2,843 0.31 0MML Managed Volatility Fund EQUITY NOBLE ENERGY INC 20,118 2,353 0.01 0MML Managed Volatility Fund EQUITY YUM BRANDS INC 135,854 1,488 0.09 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Managed Volatility Fund EQUITY NETFLIX INC 1,087,565 2,175 0.75 0MML Managed Volatility Fund EQUITY JM SMUCKER CO/THE 61,457 532 0.04 0MML Managed Volatility Fund EQUITY SKYWORKS SOLUTIONS INC 120,329 827 0.08 0MML Managed Volatility Fund EQUITY CONOCOPHILLIPS 172,837 5,263 0.12 0MML Managed Volatility Fund EQUITY CENTERPOINT ENERGY INC 50,658 2,618 0.03 0MML Managed Volatility Fund EQUITY CARMAX INC 74,447 810 0.05 0MML Managed Volatility Fund EQUITY WYNN RESORTS LTD 34,397 479 0.02 0MML Managed Volatility Fund EQUITY COMCAST CORP CLASS A 1,040,341 22,489 0.71 0MML Managed Volatility Fund EQUITY ALTRIA GROUP INC 354,329 9,170 0.24 0MML Managed Volatility Fund EQUITY CARNIVAL CORP 38,922 2,564 0.03 0MML Managed Volatility Fund EQUITY INTUITIVE SURGICAL INC 410,114 578 0.28 0MML Managed Volatility Fund EQUITY LKQ CORP 38,600 1,392 0.03 0MML Managed Volatility Fund EQUITY BIOGEN INC 223,256 787 0.15 0MML Managed Volatility Fund EQUITY NRG ENERGY INC 37,841 1,231 0.03 0MML Managed Volatility Fund EQUITY ASSURANT INC 36,636 302 0.03 0MML Managed Volatility Fund EQUITY SALESFORCE.COM INC 1,127,673 4,487 0.77 0MML Managed Volatility Fund EQUITY REGIONS FINANCIAL CORP 54,030 4,686 0.04 0MML Managed Volatility Fund EQUITY DOMINO S PIZZA INC 82,504 194 0.06 0MML Managed Volatility Fund EQUITY EXTRA SPACE STORAGE INC 69,330 648 0.05 0MML Managed Volatility Fund EQUITY DIGITAL REALTY TRUST INC 194,897 1,328 0.13 0MML Managed Volatility Fund EQUITY MARKETAXESS HOLDINGS INC 89,576 186 0.06 0MML Managed Volatility Fund EQUITY LAS VEGAS SANDS CORP 77,082 1,652 0.05 0MML Managed Volatility Fund EQUITY CELANESE CORP 63,503 591 0.04 0MML Managed Volatility Fund EQUITY MOLSON COORS BEVERAGE CO B 30,640 913 0.02 0MML Managed Volatility Fund EQUITY DEXCOM INC 194,985 473 0.13 0MML Managed Volatility Fund EQUITY SVB FINANCIAL GROUP 62,080 258 0.04 0MML Managed Volatility Fund EQUITY CF INDUSTRIES HOLDINGS INC 32,952 1,073 0.02 0MML Managed Volatility Fund EQUITY AMERIPRISE FINANCIAL INC 92,004 597 0.06 0MML Managed Volatility Fund EQUITY C.H. ROBINSON WORLDWIDE INC 67,548 661 0.05 0MML Managed Volatility Fund EQUITY UNDER ARMOUR INC CLASS A 12,757 1,136 0.01 0MML Managed Volatility Fund EQUITY AT+T INC 1,002,241 35,154 0.69 0MML Managed Volatility Fund EQUITY LIVE NATION ENTERTAINMENT IN 38,363 712 0.03 0MML Managed Volatility Fund EQUITY CHIPOTLE MEXICAN GRILL INC 171,632 138 0.12 0MML Managed Volatility Fund EQUITY FIDELITY NATIONAL INFO SERV 450,021 3,057 0.31 0MML Managed Volatility Fund EQUITY TRANSDIGM GROUP INC 127,332 268 0.09 0MML Managed Volatility Fund EQUITY HESS CORP 55,665 1,360 0.04 0MML Managed Volatility Fund EQUITY MASTERCARD INC A 1,472,392 4,354 1.01 0MML Managed Volatility Fund EQUITY HANESBRANDS INC 28,271 1,795 0.02 0MML Managed Volatility Fund EQUITY WESTERN UNION CO 42,624 1,989 0.03 0MML Managed Volatility Fund EQUITY IPG PHOTONICS CORP 31,274 184 0.02 0MML Managed Volatility Fund EQUITY TRAVELERS COS INC/THE 135,778 1,255 0.09 0MML Managed Volatility Fund EQUITY UDR INC 49,861 1,529 0.03 0MML Managed Volatility Fund EQUITY IDEX CORP 68,769 377 0.05 0MML Managed Volatility Fund EQUITY MARTIN MARIETTA MATERIALS 72,726 309 0.05 0MML Managed Volatility Fund EQUITY AGILENT TECHNOLOGIES INC 154,539 1,531 0.11 0MML Managed Volatility Fund EQUITY PACCAR INC 144,635 1,696 0.10 0MML Managed Volatility Fund EQUITY MICROCHIP TECHNOLOGY INC 128,244 1,248 0.09 0MML Managed Volatility Fund EQUITY NATIONAL OILWELL VARCO INC 18,682 2,062 0.01 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Managed Volatility Fund EQUITY STARBUCKS CORP 495,157 5,763 0.34 0MML Managed Volatility Fund EQUITY RAYMOND JAMES FINANCIAL INC 44,020 605 0.03 0MML Managed Volatility Fund EQUITY VERIZON COMMUNICATIONS INC 1,214,012 20,407 0.83 0MML Managed Volatility Fund EQUITY KANSAS CITY SOUTHERN 84,267 466 0.06 0MML Managed Volatility Fund EQUITY JUNIPER NETWORKS INC 36,959 1,719 0.03 0MML Managed Volatility Fund EQUITY QUANTA SERVICES INC 35,575 673 0.02 0MML Managed Volatility Fund EQUITY ILLUMINA INC 222,847 721 0.15 0MML Managed Volatility Fund EQUITY FORD MOTOR CO 126,866 19,049 0.09 0MML Managed Volatility Fund EQUITY XCEL ENERGY INC 181,151 2,625 0.12 0MML Managed Volatility Fund EQUITY CONSTELLATION BRANDS INC A 157,293 830 0.11 0MML Managed Volatility Fund EQUITY NASDAQ INC 66,141 539 0.05 0MML Managed Volatility Fund EQUITY DAVITA INC 35,031 409 0.02 0MML Managed Volatility Fund EQUITY EXELON CORP 173,007 4,838 0.12 0MML Managed Volatility Fund EQUITY T ROWE PRICE GROUP INC 139,503 1,088 0.10 0MML Managed Volatility Fund EQUITY JPMORGAN CHASE + CO 1,446,264 15,023 0.99 0MML Managed Volatility Fund EQUITY GLOBAL PAYMENTS INC 262,463 1,478 0.18 0MML Managed Volatility Fund EQUITY ALIGN TECHNOLOGY INC 115,885 354 0.08 0MML Managed Volatility Fund EQUITY REGENCY CENTERS CORP 32,697 860 0.02 0MML Managed Volatility Fund EQUITY US BANCORP 241,235 6,729 0.17 0MML Managed Volatility Fund EQUITY ZIMMER BIOMET HOLDINGS INC 139,271 1,023 0.10 0MML Managed Volatility Fund EQUITY AMERISOURCEBERGEN CORP 74,241 766 0.05 0MML Managed Volatility Fund EQUITY CHEVRON CORP 663,408 9,214 0.46 0MML Managed Volatility Fund EQUITY PRINCIPAL FINANCIAL GROUP 48,123 1,195 0.03 0MML Managed Volatility Fund EQUITY HEWLETT PACKARD ENTERPRISE 60,418 6,448 0.04 0MML Managed Volatility Fund EQUITY HP INC 128,847 6,785 0.09 0MML Managed Volatility Fund EQUITY WILLIS TOWERS WATSON PLC 133,227 638 0.09 0MML Managed Volatility Fund EQUITY CHUBB LTD 258,251 2,224 0.18 0MML Managed Volatility Fund EQUITY DENTSPLY SIRONA INC 47,535 1,087 0.03 0MML Managed Volatility Fund EQUITY UNDER ARMOUR INC CLASS C 8,974 912 0.01 0MML Managed Volatility Fund EQUITY S+P GLOBAL INC 428,032 1,187 0.29 0MML Managed Volatility Fund EQUITY CHARTER COMMUNICATIONS INC A 460,763 738 0.32 0MML Managed Volatility Fund EQUITY FORTIVE CORP 127,271 1,670 0.09 0MML Managed Volatility Fund EQUITY IHS MARKIT LTD 144,929 1,846 0.10 0MML Managed Volatility Fund EQUITY JOHNSON CONTROLS INTERNATION 147,754 3,617 0.10 0MML Managed Volatility Fund EQUITY HILTON WORLDWIDE HOLDINGS IN 116,462 1,365 0.08 0MML Managed Volatility Fund EQUITY TECHNIPFMC PLC 12,721 2,016 0.01 0MML Managed Volatility Fund EQUITY SBA COMMUNICATIONS CORP 175,801 552 0.12 0MML Managed Volatility Fund EQUITY DXC TECHNOLOGY CO 22,420 1,256 0.02 0MML Managed Volatility Fund EQUITY BAKER HUGHES CO 42,156 3,172 0.03 0MML Managed Volatility Fund EQUITY TAPESTRY INC 20,866 1,335 0.01 0MML Managed Volatility Fund EQUITY IQVIA HOLDINGS INC 149,276 947 0.10 0MML Managed Volatility Fund EQUITY APTIV PLC 122,668 1,338 0.08 0MML Managed Volatility Fund EQUITY BOOKING HOLDINGS INC 345,557 202 0.24 0MML Managed Volatility Fund EQUITY BROADCOM INC 722,447 1,983 0.50 0MML Managed Volatility Fund EQUITY EVERGY INC 58,036 1,142 0.04 0MML Managed Volatility Fund EQUITY MARATHON PETROLEUM CORP 94,123 3,208 0.06 0MML Managed Volatility Fund EQUITY HOLLYFRONTIER CORP 14,309 726 0.01 0MML Managed Volatility Fund EQUITY PVH CORP 19,204 322 0.01 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Managed Volatility Fund EQUITY RALPH LAUREN CORP 18,420 271 0.01 0MML Managed Volatility Fund EQUITY FORTUNE BRANDS HOME + SECURI 58,834 680 0.04 0MML Managed Volatility Fund EQUITY CBRE GROUP INC A 76,138 1,621 0.05 0MML Managed Volatility Fund EQUITY XYLEM INC 74,530 886 0.05 0MML Managed Volatility Fund EQUITY EXPEDIA GROUP INC 61,616 672 0.04 0MML Managed Volatility Fund EQUITY AMERICAN TOWER CORP 528,664 2,187 0.36 0MML Managed Volatility Fund EQUITY PHILLIPS 66 112,078 2,162 0.08 0MML Managed Volatility Fund EQUITY FACEBOOK INC CLASS A 3,104,563 11,854 2.13 0MML Managed Volatility Fund EQUITY SERVICENOW INC 458,810 946 0.31 0MML Managed Volatility Fund EQUITY DUKE ENERGY CORP 318,550 3,597 0.22 0MML Managed Volatility Fund EQUITY MONDELEZ INTERNATIONAL INC A 405,310 7,055 0.28 0MML Managed Volatility Fund EQUITY DIAMONDBACK ENERGY INC 21,777 723 0.01 0MML Managed Volatility Fund EQUITY EATON CORP PLC 200,693 1,967 0.14 0MML Managed Volatility Fund EQUITY ABBVIE INC 762,296 8,703 0.52 0MML Managed Volatility Fund EQUITY NORWEGIAN CRUISE LINE HOLDIN 23,389 1,367 0.02 0MML Managed Volatility Fund FIXED INCOME SINO FOREST CORPORATION - 359,000 - 5 8/1/2049MML Managed Volatility Fund EQUITY ZOETIS INC 387,297 2,342 0.27 0MML Managed Volatility Fund EQUITY L BRANDS INC 36,263 1,140 0.02 0MML Managed Volatility Fund EQUITY T MOBILE US INC 328,328 2,871 0.23 0MML Managed Volatility Fund EQUITY NEWS CORP CLASS A 16,277 1,161 0.01 0MML Managed Volatility Fund EQUITY NEWS CORP CLASS B 17,978 1,286 0.01 0MML Managed Volatility Fund EQUITY CDW CORP/DE 86,062 720 0.06 0MML Managed Volatility Fund EQUITY LEIDOS HOLDINGS INC 59,552 668 0.04 0MML Managed Volatility Fund EQUITY INTERCONTINENTAL EXCHANGE IN 277,339 2,772 0.19 0MML Managed Volatility Fund EQUITY TWITTER INC 171,681 3,858 0.12 0MML Managed Volatility Fund EQUITY ALLEGION PLC 44,411 449 0.03 0MML Managed Volatility Fund EQUITY AMERICAN AIRLINES GROUP INC 30,934 2,517 0.02 0MML Managed Volatility Fund EQUITY PERRIGO CO PLC 32,872 716 0.02 0MML Managed Volatility Fund EQUITY PAYCOM SOFTWARE INC 75,335 242 0.05 0MML Managed Volatility Fund EQUITY PENTAIR PLC 37,394 817 0.03 0MML Managed Volatility Fund EQUITY ARISTA NETWORKS INC 56,492 273 0.04 0MML Managed Volatility Fund EQUITY SYNCHRONY FINANCIAL 67,021 2,561 0.05 0MML Managed Volatility Fund EQUITY CATALENT INC 69,642 813 0.05 0MML Managed Volatility Fund EQUITY CITIZENS FINANCIAL GROUP 53,745 2,126 0.04 0MML Managed Volatility Fund EQUITY KEYSIGHT TECHNOLOGIES IN 88,704 898 0.06 0MML Managed Volatility Fund EQUITY ANTHEM INC 333,052 1,240 0.23 0MML Managed Volatility Fund EQUITY CROWN CASTLE INTL CORP 344,822 2,071 0.24 0MML Managed Volatility Fund EQUITY QORVO INC 72,375 561 0.05 0MML Managed Volatility Fund EQUITY IRON MOUNTAIN INC 37,747 1,409 0.03 0MML Managed Volatility Fund EQUITY EQUINIX INC 332,177 437 0.23 0MML Managed Volatility Fund EQUITY MEDTRONIC PLC 688,886 6,629 0.47 0MML Managed Volatility Fund EQUITY EVERSOURCE ENERGY 136,771 1,637 0.09 0MML Managed Volatility Fund EQUITY MYLAN NV 38,691 2,609 0.03 0MML Managed Volatility Fund EQUITY ETSY INC 71,762 590 0.05 0MML Managed Volatility Fund EQUITY MONSTER BEVERAGE CORP 143,317 1,787 0.10 0MML Managed Volatility Fund EQUITY WESTROCK CO 44,189 1,272 0.03 0MML Managed Volatility Fund EQUITY WEC ENERGY GROUP INC 151,649 1,565 0.10 0MML Managed Volatility Fund EQUITY KRAFT HEINZ CO/THE 96,020 3,206 0.07 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Managed Volatility Fund EQUITY PAYPAL HOLDINGS INC 1,139,819 5,785 0.78 0MML Managed Volatility Fund EQUITY NIELSEN HOLDINGS PLC 24,687 1,741 0.02 0MML Managed Volatility Fund EQUITY WELLTOWER INC 113,651 2,063 0.08 0MML Managed Volatility Fund EQUITY ALPHABET INC CL C 2,123,572 1,445 1.46 0MML Managed Volatility Fund EQUITY ALPHABET INC CL A 2,173,485 1,483 1.49 0MML Managed Volatility Fund EQUITY SEAGATE TECHNOLOGY 54,887 1,114 0.04 0MML Managed Volatility Fund EQUITY UNITED AIRLINES HOLDINGS INC 50,214 1,445 0.03 0MML Managed Volatility Fund EQUITY GENERAL MOTORS CO 184,227 6,226 0.13 0MML Managed Volatility Fund EQUITY FIRST REPUBLIC BANK/CA 93,137 854 0.06 0MML Managed Volatility Fund EQUITY FLEETCOR TECHNOLOGIES INC 99,050 416 0.07 0MML Managed Volatility Fund EQUITY MOTOROLA SOLUTIONS INC 131,564 839 0.09 0MML Managed Volatility Fund EQUITY O REILLY AUTOMOTIVE INC 168,294 365 0.12 0MML Managed Volatility Fund EQUITY KINDER MORGAN INC 118,985 9,650 0.08 0MML Managed Volatility Fund EQUITY HCA HEALTHCARE INC 162,084 1,300 0.11 0MML Managed Volatility Fund EQUITY COLGATE PALMOLIVE CO 328,119 4,253 0.23 0MML Managed Volatility Fund EQUITY ECOLAB INC 245,004 1,226 0.17 0MML Managed Volatility Fund EQUITY GENERAL MILLS INC 186,459 3,023 0.13 0MML Managed Volatility Fund EQUITY GOLDMAN SACHS GROUP INC 341,046 1,697 0.23 0MML Managed Volatility Fund EQUITY ROSS STORES INC 162,937 1,746 0.11 0MML Managed Volatility Fund EQUITY SCHLUMBERGER LTD 105,046 6,751 0.07 0MML Managed Volatility Fund EQUITY ADVANCED MICRO DEVICES 474,722 5,790 0.33 0MML Managed Volatility Fund EQUITY AUTOZONE INC 135,429 115 0.09 0MML Managed Volatility Fund EQUITY AVERY DENNISON CORP 53,054 415 0.04 0MML Managed Volatility Fund EQUITY BOEING CO/THE 432,485 2,617 0.30 0MML Managed Volatility Fund EQUITY CORNING INC 119,885 3,699 0.08 0MML Managed Volatility Fund EQUITY DOVER CORP 77,355 714 0.05 0MML Managed Volatility Fund EQUITY EQUIFAX INC 93,199 594 0.06 0MML Managed Volatility Fund EQUITY FEDEX CORP 299,057 1,189 0.21 0MML Managed Volatility Fund EQUITY FISERV INC 282,769 2,744 0.19 0MML Managed Volatility Fund EQUITY HALLIBURTON CO 52,683 4,372 0.04 0MML Managed Volatility Fund EQUITY HERSHEY CO/THE 104,925 732 0.07 0MML Managed Volatility Fund EQUITY KLA CORP 148,405 766 0.10 0MML Managed Volatility Fund EQUITY MAXIM INTEGRATED PRODUCTS 87,285 1,291 0.06 0MML Managed Volatility Fund EQUITY PPG INDUSTRIES INC 141,247 1,157 0.10 0MML Managed Volatility Fund EQUITY QUALCOMM INC 654,536 5,562 0.45 0MML Managed Volatility Fund EQUITY ROCKWELL AUTOMATION INC 126,670 574 0.09 0MML Managed Volatility Fund EQUITY SOUTHWEST AIRLINES CO 109,613 2,923 0.08 0MML Managed Volatility Fund EQUITY TJX COMPANIES INC 329,058 5,913 0.23 0MML Managed Volatility Fund EQUITY VULCAN MATERIALS CO 87,694 647 0.06 0MML Managed Volatility Fund EQUITY WEYERHAEUSER CO 105,324 3,693 0.07 0MML Managed Volatility Fund EQUITY WILLIAMS COS INC 117,291 5,969 0.08 0MML Managed Volatility Fund EQUITY XILINX INC 126,026 1,209 0.09 0MML Managed Volatility Fund EQUITY VERISIGN INC 104,883 512 0.07 0MML Managed Volatility Fund EQUITY HARTFORD FINANCIAL SVCS GRP 62,109 1,685 0.04 0MML Managed Volatility Fund EQUITY ELECTRONIC ARTS INC 186,095 1,427 0.13 0MML Managed Volatility Fund EQUITY AFLAC INC 119,664 3,292 0.08 0MML Managed Volatility Fund EQUITY METLIFE INC 141,841 3,816 0.10 0MML Managed Volatility Fund EQUITY MGM RESORTS INTERNATIONAL 44,218 2,033 0.03 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Managed Volatility Fund EQUITY SCHWAB (CHARLES) CORP 207,489 5,727 0.14 0MML Managed Volatility Fund EQUITY ADOBE INC 1,159,867 2,365 0.80 0MML Managed Volatility Fund EQUITY HORMEL FOODS CORP 70,939 1,451 0.05 0MML Managed Volatility Fund EQUITY MCCORMICK + CO NON VTG SHRS 116,848 602 0.08 0MML Managed Volatility Fund EQUITY UNITEDHEALTH GROUP INC 1,460,331 4,684 1.00 0MML Managed Volatility Fund EQUITY AUTODESK INC 249,953 1,082 0.17 0MML Managed Volatility Fund EQUITY JACOBS ENGINEERING GROUP INC 59,837 645 0.04 0MML Managed Volatility Fund EQUITY LABORATORY CRP OF AMER HLDGS 89,428 475 0.06 0MML Managed Volatility Fund EQUITY CAMPBELL SOUP CO 48,805 1,009 0.03 0MML Managed Volatility Fund EQUITY PARKER HANNIFIN CORP 127,070 628 0.09 0MML Managed Volatility Fund EQUITY VF CORP 110,363 1,571 0.08 0MML Managed Volatility Fund EQUITY TYSON FOODS INC CL A 85,532 1,438 0.06 0MML Managed Volatility Fund EQUITY DANAHER CORP 670,322 3,113 0.46 0MML Managed Volatility Fund EQUITY SEALED AIR CORP 30,505 786 0.02 0MML Managed Volatility Fund EQUITY REPUBLIC SERVICES INC 92,697 993 0.06 0MML Managed Volatility Fund EQUITY AKAMAI TECHNOLOGIES INC 87,769 794 0.06 0MML Managed Volatility Fund EQUITY TE CONNECTIVITY LTD 159,805 1,635 0.11 0MML Managed Volatility Fund EQUITY HUNTINGTON INGALLS INDUSTRIE 28,009 199 0.02 0MML Managed Volatility Fund EQUITY CITIGROUP INC 442,567 10,266 0.30 0MML Managed Volatility Fund EQUITY MOSAIC CO/THE 30,785 1,685 0.02 0MML Managed Volatility Fund EQUITY PROLOGIS INC 366,961 3,647 0.25 0MML Managed Volatility Fund EQUITY ELI LILLY + CO 579,202 3,913 0.40 0MML Managed Volatility Fund EQUITY MCDONALD S CORP 804,870 3,667 0.55 0MML Managed Volatility Fund EQUITY STATE STREET CORP 103,412 1,743 0.07 0MML Managed Volatility Fund EQUITY SYNOPSYS INC 160,913 752 0.11 0MML Managed Volatility Fund EQUITY TARGET CORP 388,513 2,468 0.27 0MML Managed Volatility Fund EQUITY WASTE MANAGEMENT INC 215,023 1,900 0.15 0MML Managed Volatility Fund EQUITY WHIRLPOOL CORP 57,190 311 0.04 0MML Managed Volatility Fund EQUITY AMERICAN EXPRESS CO 318,394 3,176 0.22 0MML Managed Volatility Fund EQUITY COCA COLA CO/THE 940,696 19,054 0.65 0MML Managed Volatility Fund EQUITY MARRIOTT INTERNATIONAL CL A 121,465 1,312 0.08 0MML Managed Volatility Fund EQUITY NIKE INC CL B 769,309 6,128 0.53 0MML Managed Volatility Fund EQUITY ANALOG DEVICES INC 211,766 1,814 0.15 0MML Managed Volatility Fund EQUITY KROGER CO 130,520 3,849 0.09 0MML Managed Volatility Fund EQUITY PEPSICO INC 945,806 6,824 0.65 0MML Managed Volatility Fund EQUITY UNITED PARCEL SERVICE CL B 580,872 3,486 0.40 0MML Managed Volatility Fund EQUITY SHERWIN WILLIAMS CO/THE 282,180 405 0.19 0MML Managed Volatility Fund EQUITY NEWELL BRANDS INC 32,158 1,874 0.02 0MML Managed Volatility Fund EQUITY SNAP ON INC 39,137 266 0.03 0MML Managed Volatility Fund EQUITY DEERE + CO 342,862 1,547 0.24 0MML Managed Volatility Fund EQUITY KIMCO REALTY CORP 23,128 2,054 0.02 0MML Managed Volatility Fund EQUITY TIFFANY + CO 61,748 533 0.04 0MML Managed Volatility Fund EQUITY VORNADO REALTY TRUST 27,878 827 0.02 0MML Managed Volatility Fund EQUITY ZIONS BANCORP NA 21,681 742 0.01 0MML Managed Volatility Fund EQUITY AVALONBAY COMMUNITIES INC 101,850 682 0.07 0MML Managed Volatility Fund EQUITY BOSTON PROPERTIES INC 53,801 670 0.04 0MML Managed Volatility Fund EQUITY EQUITY RESIDENTIAL 85,978 1,675 0.06 0MML Managed Volatility Fund EQUITY HOST HOTELS + RESORTS INC 35,391 3,280 0.02 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Managed Volatility Fund EQUITY SL GREEN REALTY CORP 15,534 335 0.01 0MML Managed Volatility Fund EQUITY DUKE REALTY CORP 66,162 1,793 0.05 0MML Managed Volatility Fund EQUITY PUBLIC STORAGE 167,708 753 0.12 0MML Managed Volatility Fund EQUITY SIMON PROPERTY GROUP INC 97,796 1,512 0.07 0MML Managed Volatility Fund EQUITY AIR PRODUCTS + CHEMICALS INC 324,965 1,091 0.22 0MML Managed Volatility Fund EQUITY AUTOMATIC DATA PROCESSING 296,277 2,124 0.20 0MML Managed Volatility Fund EQUITY CATERPILLAR INC 398,529 2,672 0.27 0MML Managed Volatility Fund EQUITY FORTINET INC 77,283 656 0.05 0MML Managed Volatility Fund EQUITY BERKSHIRE HATHAWAY INC CL B 2,080,850 9,772 1.43 0MML Managed Volatility Fund EQUITY STANLEY BLACK + DECKER INC 128,138 790 0.09 0MML Managed Volatility Fund EQUITY LYONDELLBASELL INDU CL A 88,676 1,258 0.06 0MML Managed Volatility Fund EQUITY E TRADE FINANCIAL CORP 57,157 1,142 0.04 0MML Managed Volatility Fund EQUITY NEXTERA ENERGY INC 670,863 2,417 0.46 0MML Managed Volatility Fund EQUITY CBOE GLOBAL MARKETS INC 45,186 515 0.03 0MML Managed Volatility Fund EQUITY GARMIN LTD 67,256 709 0.05 0MML Managed Volatility Fund EQUITY TELEDYNE TECHNOLOGIES INC 54,597 176 0.04 0MML Managed Volatility Fund CASH US DOLLAR 747 747 0.00 0MML Managed Volatility Fund EQUITY EDWARDS LIFESCIENCES CORP 245,047 3,070 0.17 0MML Managed Volatility Fund EQUITY ABBOTT LABORATORIES 950,086 8,730 0.65 0MML Managed Volatility Fund EQUITY BRISTOL MYERS SQUIBB CO 670,003 11,113 0.46 0MML Managed Volatility Fund EQUITY ILLINOIS TOOL WORKS 274,358 1,420 0.19 0MML Managed Volatility Fund EQUITY LOWE S COS INC 617,497 3,723 0.42 0MML Managed Volatility Fund EQUITY MARSH + MCLENNAN COS 288,585 2,516 0.20 0MML Managed Volatility Fund EQUITY NUCOR CORP 67,380 1,502 0.05 0MML Managed Volatility Fund EQUITY SYSCO CORP 155,488 2,499 0.11 0MML Managed Volatility Fund EQUITY TEXAS INSTRUMENTS INC 644,697 4,515 0.44 0MML Managed Volatility Fund EQUITY TEXTRON INC 40,782 1,130 0.03 0MML Managed Volatility Fund EQUITY CADENCE DESIGN SYS INC 142,031 1,332 0.10 0MML Managed Volatility Fund EQUITY COSTCO WHOLESALE CORP 773,900 2,180 0.53 0MML Managed Volatility Fund EQUITY INTEL CORP 1,085,671 20,967 0.74 0MML Managed Volatility Fund EQUITY JOHNSON + JOHNSON 1,931,867 12,976 1.33 0MML Managed Volatility Fund EQUITY HEALTHPEAK PROPERTIES INC 72,925 2,686 0.05 0MML Managed Volatility Fund EQUITY NORTONLIFELOCK INC 61,082 2,931 0.04 0MML Managed Volatility Fund OPTIONS S+P 500 INDEX 371,280 4,200 0.25 0 12/18/2020MML Managed Volatility Fund EQUITY VIACOMCBS INC CLASS B 78,344 2,797 0.05 0MML Managed Volatility Fund EQUITY TRUIST FINANCIAL CORP 253,109 6,652 0.17 0MML Managed Volatility Fund EQUITY INGERSOLL RAND INC 65,789 1,848 0.05 0MML Managed Volatility Fund EQUITY HOWMET AEROSPACE INC 31,735 1,898 0.02 0MML Managed Volatility Fund EQUITY TRANE TECHNOLOGIES PLC 144,166 1,189 0.10 0MML Managed Volatility Fund OPTIONS S+P 500 INDEX (267,260) (4,600) 0.18 0 11/20/2020MML Managed Volatility Fund EQUITY CARRIER GLOBAL CORP 123,137 4,032 0.08 0MML Managed Volatility Fund EQUITY OTIS WORLDWIDE CORP 125,776 2,015 0.09 0MML Managed Volatility Fund EQUITY AON PLC CLASS A 236,007 1,144 0.16 0MML Managed Volatility Fund EQUITY RAYTHEON TECHNOLOGIES CORP 433,679 7,537 0.30 0MML Managed Volatility Fund OPTIONS S+P 500 INDEX 98,400 4,100 0.07 0 11/20/2020MML Managed Volatility Fund OPTIONS S+P 500 INDEX 285,606 8,200 0.20 0 11/20/2020MML Managed Volatility Fund OPTIONS S+P 500 INDEX 352,284 6,200 0.24 0 11/20/2020MML Managed Volatility Fund OPTIONS S+P 500 INDEX (229,950) (4,500) 0.16 0 11/20/2020

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Managed Volatility Fund OPTIONS S+P 500 INDEX (163,372) (4,400) 0.11 0 11/20/2020MML Managed Volatility Fund OPTIONS S+P 500 INDEX (759,880) (4,400) 0.52 0 11/20/2020MML Managed Volatility Fund CASH EQUIVALENT FIXED INC CLEARING CORP.REPO 4,083,122 4,083,122 2.80 0 10/1/2020MML Managed Volatility Fund OPTIONS S+P 500 INDEX (356,730) (4,600) 0.24 0 11/6/2020MML Managed Volatility Fund EQUITY CITRIX SYSTEMS INC 84,141 611 0.06 0MML Managed Volatility Fund EQUITY FASTENAL CO 128,011 2,839 0.09 0MML Managed Volatility Fund EQUITY TELEFLEX INC 76,935 226 0.05 0MML Managed Volatility Fund EQUITY WEST PHARMACEUTICAL SERVICES 98,964 360 0.07 0MML Managed Volatility Fund EQUITY DTE ENERGY COMPANY 110,208 958 0.08 0MML Managed Volatility Fund EQUITY PULTEGROUP INC 62,723 1,355 0.04 0MML Managed Volatility Fund EQUITY COPART INC 106,106 1,009 0.07 0MML Managed Volatility Fund EQUITY RESMED INC 122,915 717 0.08 0MML Managed Volatility Fund EQUITY WESTERN DIGITAL CORP 54,898 1,502 0.04 0MML Managed Volatility Fund EQUITY BOSTON SCIENTIFIC CORP 270,106 7,069 0.19 0MML Managed Volatility Fund EQUITY BAXTER INTERNATIONAL INC 201,854 2,510 0.14 0MML Managed Volatility Fund EQUITY CARDINAL HEALTH INC 67,937 1,447 0.05 0MML Managed Volatility Fund EQUITY INTERPUBLIC GROUP OF COS INC 31,056 1,863 0.02 0MML Managed Volatility Fund EQUITY PAYCHEX INC 123,564 1,549 0.08 0MML Managed Volatility Fund EQUITY BLACKROCK INC 394,485 700 0.27 0MML Managed Volatility Fund EQUITY LEGGETT + PLATT INC 27,502 668 0.02 0MML Managed Volatility Fund EQUITY MOODY S CORP 231,010 797 0.16 0MML Managed Volatility Fund EQUITY DISCOVER FINANCIAL SERVICES 89,501 1,549 0.06 0MML Managed Volatility Fund EQUITY WALGREENS BOOTS ALLIANCE INC 125,971 3,507 0.09 0MML Managed Volatility Fund EQUITY LAMB WESTON HOLDINGS INC 47,847 722 0.03 0MML Managed Volatility Fund EQUITY FOX CORP CLASS A 35,372 1,271 0.02 0MML Managed Volatility Fund EQUITY GLOBE LIFE INC 35,236 441 0.02 0MML Managed Volatility Fund OPTIONS S+P 500 INDEX (168,820) (4,600) 0.12 0 10/16/2020MML Managed Volatility Fund OPTIONS S+P 500 INDEX (112,995) (4,500) 0.08 0 10/16/2020MML Managed Volatility Fund OPTIONS S+P 500 INDEX 116,973 4,100 0.08 0 11/20/2020MML Managed Volatility Fund OPTIONS S+P 500 INDEX (276,120) (4,500) 0.19 0 10/30/2020MML Managed Volatility Fund OPTIONS S+P 500 INDEX (288,880) (4,600) 0.20 0 10/16/2020MML Managed Volatility Fund EQUITY BROADRIDGE FINANCIAL SOLUTIO 75,900 575 0.05 0MML Managed Volatility Fund EQUITY PEOPLE S UNITED FINANCIAL 21,806 2,115 0.01 0MML Managed Volatility Fund EQUITY DELTA AIR LINES INC 96,786 3,165 0.07 0MML Managed Volatility Fund EQUITY BANK OF NEW YORK MELLON CORP 135,712 3,952 0.09 0MML Managed Volatility Fund EQUITY CME GROUP INC 296,139 1,770 0.20 0MML Managed Volatility Fund EQUITY CONCHO RESOURCES INC 43,546 987 0.03 0MML Managed Volatility Fund EQUITY ULTA BEAUTY INC 63,386 283 0.04 0MML Managed Volatility Fund EQUITY MSCI INC 149,491 419 0.10 0MML Managed Volatility Fund EQUITY INVESCO LTD 23,254 2,038 0.02 0MML Managed Volatility Fund EQUITY DISH NETWORK CORP A 37,245 1,283 0.03 0MML Managed Volatility Fund EQUITY DOLLAR TREE INC 106,046 1,161 0.07 0MML Managed Volatility Fund EQUITY PHILIP MORRIS INTERNATIONAL 575,848 7,679 0.40 0MML Managed Volatility Fund EQUITY VISA INC CLASS A SHARES 1,661,951 8,311 1.14 0MML Managed Volatility Fund EQUITY NETAPP INC 45,550 1,039 0.03 0MML Managed Volatility Fund EQUITY AMERICAN WATER WORKS CO INC 129,812 896 0.09 0MML Managed Volatility Fund EQUITY ACTIVISION BLIZZARD INC 308,420 3,810 0.21 0MML Managed Volatility Fund EQUITY DISCOVERY INC A 23,381 1,074 0.02 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Managed Volatility Fund EQUITY DISCOVERY INC C 21,384 1,091 0.01 0MML Managed Volatility Fund EQUITY AMERICAN INTERNATIONAL GROUP 116,232 4,222 0.08 0MML Managed Volatility Fund EQUITY ACCENTURE PLC CL A 708,705 3,136 0.49 0MML Managed Volatility Fund EQUITY VERISK ANALYTICS INC 149,916 809 0.10 0MML Managed Volatility Fund EQUITY MERCK + CO. INC. 1,034,221 12,468 0.71 0MML Managed Volatility Fund EQUITY DOLLAR GENERAL CORP 257,413 1,228 0.18 0MML Managed Volatility Fund OPTIONS S+P 500 INDEX 418,572 6,300 0.29 0 12/18/2020MML Managed Volatility Fund EQUITY LINDE PLC 617,233 2,592 0.42 0MML Managed Volatility Fund EQUITY CIGNA CORP 306,802 1,811 0.21 0MML Managed Volatility Fund EQUITY APARTMENT INVT + MGMT CO A 22,424 665 0.02 0MML Managed Volatility Fund EQUITY DOW INC 172,203 3,660 0.12 0MML Managed Volatility Fund EQUITY FOX CORP CLASS B 30,124 1,077 0.02 0MML Managed Volatility Fund EQUITY STERIS PLC 74,705 424 0.05 0MML Managed Volatility Fund EQUITY CORTEVA INC 106,568 3,699 0.07 0MML Managed Volatility Fund EQUITY AMCOR PLC 85,671 7,753 0.06 0MML Managed Volatility Fund EQUITY DUPONT DE NEMOURS INC 200,838 3,620 0.14 0MML Managed Volatility Fund EQUITY L3HARRIS TECHNOLOGIES INC 181,559 1,069 0.12 0MML Managed Volatility Fund EQUITY XEROX HOLDINGS CORP 16,461 877 0.01 0MML Managed Volatility Fund EQUITY KELLOGG CO 79,381 1,229 0.05 0MML Managed Volatility Fund EQUITY M + T BANK CORP 59,582 647 0.04 0MML Managed Volatility Fund EQUITY PACKAGING CORP OF AMERICA 50,817 466 0.03 0MML Managed Volatility Fund EQUITY EXPEDITORS INTL WASH INC 73,774 815 0.05 0MML Managed Volatility Fund EQUITY NEWMONT CORP 251,579 3,965 0.17 0MML Managed Volatility Fund EQUITY ROYAL CARIBBEAN CRUISES LTD 57,027 881 0.04 0MML Managed Volatility Fund EQUITY FIFTH THIRD BANCORP 76,219 3,575 0.05 0MML Managed Volatility Fund EQUITY FREEPORT MCMORAN INC 111,279 7,115 0.08 0MML Managed Volatility Fund EQUITY COMERICA INC 26,507 693 0.02 0MML Managed Volatility Fund EQUITY SEMPRA ENERGY 165,704 1,400 0.11 0MML Managed Volatility Fund EQUITY PROGRESSIVE CORP 273,502 2,889 0.19 0MML Managed Volatility Fund EQUITY AMAZON.COM INC 6,609,184 2,099 4.53 0MML Managed Volatility Fund EQUITY MCKESSON CORP 119,144 800 0.08 0MML Managed Volatility Fund EQUITY MOHAWK INDUSTRIES INC 28,399 291 0.02 0MML Managed Volatility Fund EQUITY CINTAS CORP 143,783 432 0.10 0MML Managed Volatility Fund EQUITY ROBERT HALF INTL INC 30,758 581 0.02 0MML Managed Volatility Fund CASH CANADIAN DOLLAR 28,566 38,037 0.02 0MML Managed Volatility Fund EQUITY EBAY INC 169,846 3,260 0.12 0MML Managed Volatility Fund EQUITY BROWN FORMAN CORP CLASS B 72,081 957 0.05 0MML Managed Volatility Fund EQUITY ALLIANT ENERGY CORP 60,276 1,167 0.04 0MML Managed Volatility Fund EQUITY BORGWARNER INC 39,011 1,007 0.03 0MML Managed Volatility Fund EQUITY EOG RESOURCES INC 102,285 2,846 0.07 0MML Managed Volatility Fund EQUITY EDISON INTERNATIONAL 95,630 1,881 0.07 0MML Managed Volatility Fund EQUITY LINCOLN NATIONAL CORP 30,547 975 0.02 0MML Managed Volatility Fund EQUITY LOEWS CORP 43,438 1,250 0.03 0MML Managed Volatility Fund EQUITY NISOURCE INC 43,692 1,986 0.03 0MML Managed Volatility Fund EQUITY ONEOK INC 57,312 2,206 0.04 0MML Managed Volatility Fund EQUITY PINNACLE WEST CAPITAL 43,164 579 0.03 0MML Managed Volatility Fund EQUITY SOUTHERN CO/THE 283,950 5,237 0.19 0MML Managed Volatility Fund EQUITY UNUM GROUP 17,974 1,068 0.01 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Managed Volatility Fund EQUITY SMITH (A.O.) CORP 36,115 684 0.02 0MML Managed Volatility Fund EQUITY DARDEN RESTAURANTS INC 64,776 643 0.04 0MML Managed Volatility Fund EQUITY MID AMERICA APARTMENT COMM 61,801 533 0.04 0MML Managed Volatility Fund EQUITY PERKINELMER INC 67,399 537 0.05 0MML Managed Volatility Fund EQUITY REALTY INCOME CORP 104,369 1,718 0.07 0MML Managed Volatility Fund EQUITY ROPER TECHNOLOGIES INC 204,667 518 0.14 0MML Managed Volatility Fund EQUITY EVEREST RE GROUP LTD 39,310 199 0.03 0MML Managed Volatility Fund EQUITY ALASKA AIR GROUP INC 20,110 549 0.01 0MML Managed Volatility Fund EQUITY ALBEMARLE CORP 46,783 524 0.03 0MML Managed Volatility Fund EQUITY ALLSTATE CORP 141,210 1,500 0.10 0MML Managed Volatility Fund EQUITY AMEREN CORPORATION 97,822 1,237 0.07 0MML Managed Volatility Fund EQUITY AMERICAN ELECTRIC POWER 201,791 2,469 0.14 0MML Managed Volatility Fund EQUITY APACHE CORP 17,586 1,857 0.01 0MML Managed Volatility Fund EQUITY ARCHER DANIELS MIDLAND CO 128,777 2,770 0.09 0MML Managed Volatility Fund EQUITY WR BERKLEY CORP 42,132 689 0.03 0MML Managed Volatility Fund EQUITY CMS ENERGY CORP 90,764 1,478 0.06 0MML Managed Volatility Fund EQUITY CSX CORP 293,515 3,779 0.20 0MML Managed Volatility Fund EQUITY CINCINNATI FINANCIAL CORP 56,060 719 0.04 0MML Managed Volatility Fund EQUITY CONSOLIDATED EDISON INC 125,569 1,614 0.09 0MML Managed Volatility Fund EQUITY CUMMINS INC 152,035 720 0.10 0MML Managed Volatility Fund EQUITY DR HORTON INC 122,067 1,614 0.08 0MML Managed Volatility Fund EQUITY DEVON ENERGY CORP 18,513 1,957 0.01 0MML Managed Volatility Fund EQUITY DOMINION ENERGY INC 326,454 4,136 0.22 0MML Managed Volatility Fund EQUITY EASTMAN CHEMICAL CO 49,606 635 0.03 0MML Managed Volatility Fund EQUITY ENTERGY CORP 93,406 948 0.06 0MML Managed Volatility Fund EQUITY FMC CORP 67,994 642 0.05 0MML Managed Volatility Fund EQUITY VENTAS INC 77,416 1,845 0.05 0MML Managed Volatility Fund EQUITY GARTNER INC 55,478 444 0.04 0MML Managed Volatility Fund EQUITY F5 NETWORKS INC 34,253 279 0.02 0MML Managed Volatility Fund EQUITY INTUIT INC 421,463 1,292 0.29 0MML Managed Volatility Fund EQUITY HUNTINGTON BANCSHARES INC 45,630 4,976 0.03 0MML Managed Volatility Fund EQUITY STRYKER CORP 335,892 1,612 0.23 0MML Managed Volatility Fund EQUITY ESTEE LAUDER COMPANIES CL A 243,131 1,114 0.17 0MML Managed Volatility Fund EQUITY NORTHERN TRUST CORP 81,557 1,046 0.06 0MML Managed Volatility Fund EQUITY MASCO CORP 70,015 1,270 0.05 0MML Managed Volatility Fund EQUITY PNC FINANCIAL SERVICES GROUP 228,613 2,080 0.16 0MML Managed Volatility Fund EQUITY BANK OF AMERICA CORP 906,796 37,642 0.62 0MML Managed Volatility Fund EQUITY EMERSON ELECTRIC CO 194,087 2,960 0.13 0MML Managed Volatility Fund EQUITY WW GRAINGER INC 79,916 224 0.05 0MML Managed Volatility Fund EQUITY INTL BUSINESS MACHINES CORP 534,253 4,391 0.37 0MML Managed Volatility Fund EQUITY ROLLINS INC 40,317 744 0.03 0MML Managed Volatility Fund EQUITY TAKE TWO INTERACTIVE SOFTWRE 92,193 558 0.06 0MML Managed Volatility Fund EQUITY TERADYNE INC 65,713 827 0.05 0MML Managed Volatility Fund EQUITY VARIAN MEDICAL SYSTEMS INC 76,196 443 0.05 0MML Managed Volatility Fund EQUITY VERTEX PHARMACEUTICALS INC 350,491 1,288 0.24 0MML Managed Volatility Fund EQUITY WABTEC CORP 51,732 836 0.04 0MML Managed Volatility Fund EQUITY ZEBRA TECHNOLOGIES CORP CL A 66,902 265 0.05 0MML Managed Volatility Fund EQUITY ALEXANDRIA REAL ESTATE EQUIT 97,280 608 0.07 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Managed Volatility Fund EQUITY AMPHENOL CORP CL A 160,348 1,481 0.11 0MML Managed Volatility Fund EQUITY BALL CORP 133,075 1,601 0.09 0MML Managed Volatility Fund EQUITY ESSEX PROPERTY TRUST INC 65,257 325 0.04 0MML Managed Volatility Fund EQUITY FEDERAL REALTY INVS TRUST 22,987 313 0.02 0MML Managed Volatility Fund EQUITY GILEAD SCIENCES INC 390,830 6,185 0.27 0MML Managed Volatility Fund EQUITY METTLER TOLEDO INTERNATIONAL 114,924 119 0.08 0MML Managed Volatility Fund EQUITY NVR INC 69,413 17 0.05 0MML Managed Volatility Fund EQUITY NVIDIA CORP 1,646,391 3,042 1.13 0MML Managed Volatility Fund EQUITY UNIVERSAL HEALTH SERVICES B 41,310 386 0.03 0MML Managed Volatility Fund EQUITY BECTON DICKINSON AND CO 331,104 1,423 0.23 0MML Managed Volatility Fund EQUITY LUMEN TECHNOLOGIES INC 47,988 4,756 0.03 0MML Managed Volatility Fund EQUITY CLOROX COMPANY 127,573 607 0.09 0MML Managed Volatility Fund EQUITY CONAGRA BRANDS INC 84,776 2,374 0.06 0MML Managed Volatility Fund EQUITY FRANKLIN RESOURCES INC 27,757 1,364 0.02 0MML Managed Volatility Fund EQUITY GENERAL DYNAMICS CORP 158,225 1,143 0.11 0MML Managed Volatility Fund EQUITY HASBRO INC 50,873 615 0.03 0MML Managed Volatility Fund EQUITY HONEYWELL INTERNATIONAL INC 570,703 3,467 0.39 0MML Managed Volatility Fund EQUITY PROCTER + GAMBLE CO/THE 1,706,797 12,280 1.17 0MML Managed Volatility Fund EQUITY AES CORP 59,654 3,294 0.04 0MML Managed Volatility Fund EQUITY AMGEN INC 734,014 2,888 0.50 0MML Managed Volatility Fund EQUITY APPLE INC 9,177,943 79,250 6.30 0MML Managed Volatility Fund EQUITY BEST BUY CO INC 126,537 1,137 0.09 0MML Managed Volatility Fund EQUITY CVS HEALTH CORP 376,738 6,451 0.26 0MML Managed Volatility Fund EQUITY CAPITAL ONE FINANCIAL CORP 163,553 2,276 0.11 0MML Managed Volatility Fund EQUITY CISCO SYSTEMS INC 822,345 20,877 0.56 0MML Managed Volatility Fund EQUITY WALT DISNEY CO/THE 1,105,925 8,913 0.76 0MML Managed Volatility Fund EQUITY EXXON MOBIL CORP 716,295 20,865 0.49 0MML Managed Volatility Fund EQUITY GAP INC/THE 17,013 999 0.01 0MML Managed Volatility Fund EQUITY GENERAL ELECTRIC CO 269,205 43,211 0.18 0MML Managed Volatility Fund EQUITY HOME DEPOT INC 1,473,252 5,305 1.01 0MML Managed Volatility Fund EQUITY MICROSOFT CORP 7,846,361 37,305 5.38 0MML Managed Volatility Fund EQUITY MICRON TECHNOLOGY INC 257,482 5,483 0.18 0MML Managed Volatility Fund EQUITY MORGAN STANLEY 285,749 5,910 0.20 0MML Managed Volatility Fund EQUITY OMNICOM GROUP 52,965 1,070 0.04 0MML Managed Volatility Fund EQUITY ORACLE CORP 568,941 9,530 0.39 0MML Managed Volatility Fund EQUITY PFIZER INC 1,005,323 27,393 0.69 0MML Managed Volatility Fund EQUITY WALMART INC 956,145 6,834 0.66 0MML Managed Volatility Fund EQUITY WATERS CORP 57,139 292 0.04 0MML Managed Volatility Fund EQUITY WELLS FARGO + CO 477,676 20,318 0.33 0MML Managed Volatility Fund EQUITY GENUINE PARTS CO 69,093 726 0.05 0MML Managed Volatility Fund EQUITY INTL FLAVORS + FRAGRANCES 64,776 529 0.04 0MML Managed Volatility Fund EQUITY KIMBERLY CLARK CORP 249,988 1,693 0.17 0MML Managed Volatility Fund EQUITY REGENERON PHARMACEUTICALS 288,846 516 0.20 0MML Managed Volatility Fund EQUITY HENRY SCHEIN INC 38,795 660 0.03 0MML Managed Volatility Fund EQUITY TRACTOR SUPPLY COMPANY 82,277 574 0.06 0MML Managed Volatility Fund EQUITY TYLER TECHNOLOGIES INC 71,106 204 0.05 0MML Managed Volatility Fund EQUITY ABIOMED INC 59,568 215 0.04 0MML Managed Volatility Fund EQUITY ALEXION PHARMACEUTICALS INC 121,181 1,059 0.08 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Managed Volatility Fund EQUITY AMETEK INC 110,235 1,109 0.08 0MML Managed Volatility Fund EQUITY ANSYS INC 139,073 425 0.10 0MML Managed Volatility Fund EQUITY APPLIED MATERIALS INC 268,060 4,509 0.18 0MML Managed Volatility Fund EQUITY ATMOS ENERGY CORP 54,486 570 0.04 0MML Managed Volatility Fund EQUITY CABOT OIL + GAS CORP 32,793 1,889 0.02 0MML Managed Volatility Fund EQUITY CERNER CORP 109,158 1,510 0.07 0MML Managed Volatility Fund EQUITY CHURCH + DWIGHT CO INC 111,234 1,187 0.08 0MML Managed Volatility Fund EQUITY COGNIZANT TECH SOLUTIONS A 185,907 2,678 0.13 0MML Managed Volatility Fund EQUITY COOPER COS INC/THE 79,897 237 0.05 0MML Managed Volatility Fund EQUITY FLIR SYSTEMS INC 23,518 656 0.02 0MML Managed Volatility Fund EQUITY FLOWSERVE CORP 18,175 666 0.01 0MML Managed Volatility Fund EQUITY ARTHUR J GALLAGHER + CO 100,618 953 0.07 0MML Managed Volatility Fund EQUITY JACK HENRY + ASSOCIATES INC 61,622 379 0.04 0MML Managed Volatility Fund EQUITY IDEXX LABORATORIES INC 164,713 419 0.11 0MML Managed Volatility Fund EQUITY INCYTE CORP 79,510 886 0.05 0MML Managed Volatility Fund EQUITY FIRSTENERGY CORP 77,919 2,714 0.05 0MML Managed Volatility Fund EQUITY HUMANA INC 269,856 652 0.19 0MML Managed Volatility Fund EQUITY INTERNATIONAL PAPER CO 79,134 1,952 0.05 0MML Managed Volatility Fund EQUITY KEYCORP 58,147 4,874 0.04 0MML Managed Volatility Fund EQUITY LAM RESEARCH CORP 238,528 719 0.16 0MML Managed Volatility Fund EQUITY LENNAR CORP A 111,983 1,371 0.08 0MML Managed Volatility Fund EQUITY LOCKHEED MARTIN CORP 464,919 1,213 0.32 0MML Managed Volatility Fund EQUITY NORFOLK SOUTHERN CORP 269,627 1,260 0.18 0MML Managed Volatility Fund EQUITY NORTHROP GRUMMAN CORP 241,350 765 0.17 0MML Managed Volatility Fund EQUITY OCCIDENTAL PETROLEUM CORP 42,282 4,224 0.03 0MML Managed Volatility Fund EQUITY PPL CORP 101,412 3,727 0.07 0MML Managed Volatility Fund EQUITY PIONEER NATURAL RESOURCES CO 68,878 801 0.05 0MML Managed Volatility Fund EQUITY PUBLIC SERVICE ENTERPRISE GP 137,604 2,506 0.09 0MML Managed Volatility Fund EQUITY THERMO FISHER SCIENTIFIC INC 861,406 1,951 0.59 0MML Managed Volatility Fund EQUITY MARATHON OIL CORP 15,967 3,904 0.01 0MML Managed Volatility Fund EQUITY UNION PACIFIC CORP 658,924 3,347 0.45 0MML Managed Volatility Fund EQUITY UNITED RENTALS INC 62,646 359 0.04 0MML Managed Volatility Fund EQUITY VALERO ENERGY CORP 87,376 2,017 0.06 0MML Managed Volatility Fund EQUITY BIO RAD LABORATORIES A 54,123 105 0.04 0MML Managed Volatility Fund EQUITY HOLOGIC INC 85,215 1,282 0.06 0MML Managed Volatility Fund EQUITY HUNT (JB) TRANSPRT SVCS INC 53,332 422 0.04 0MML Managed Volatility Fund EQUITY OLD DOMINION FREIGHT LINE 85,575 473 0.06 0MML Managed Volatility Fund EQUITY QUEST DIAGNOSTICS INC 76,250 666 0.05 0MML Small Cap Growth Equity Fund EQUITY DICERNA PHARMACEUTICALS INC 458,205 25,470 0.53 0MML Small Cap Growth Equity Fund EQUITY TRINET GROUP INC 799,337 13,475 0.93 0MML Small Cap Growth Equity Fund EQUITY FIVE9 INC 711,295 5,485 0.83 0MML Small Cap Growth Equity Fund EQUITY THERAVANCE BIOPHARMA INC 271,009 18,330 0.32 0MML Small Cap Growth Equity Fund EQUITY VIPER ENERGY PARTNERS LP 201,799 26,835 0.24 0MML Small Cap Growth Equity Fund EQUITY ADVANCED DRAINAGE SYSTEMS IN 1,102,628 17,659 1.29 0MML Small Cap Growth Equity Fund EQUITY PRA GROUP INC 1,089,556 27,273 1.27 0MML Small Cap Growth Equity Fund EQUITY JAMES RIVER GROUP HOLDINGS L 1,015,329 22,801 1.18 0MML Small Cap Growth Equity Fund EQUITY XENIA HOTELS + RESORTS INC 490,828 55,903 0.57 0MML Small Cap Growth Equity Fund EQUITY AEROJET ROCKETDYNE HOLDINGS 909,931 22,811 1.06 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Small Cap Growth Equity Fund EQUITY RAPID7 INC 1,006,541 16,436 1.17 0MML Small Cap Growth Equity Fund EQUITY SPX FLOW INC 1,188,127 27,747 1.39 0MML Small Cap Growth Equity Fund EQUITY PERFORMANCE FOOD GROUP CO 807,754 23,332 0.94 0MML Small Cap Growth Equity Fund EQUITY RUSH ENTERPRISES INC CL A 1,286,951 25,464 1.50 0MML Small Cap Growth Equity Fund EQUITY HMS HOLDINGS CORP 719,051 30,023 0.84 0MML Small Cap Growth Equity Fund EQUITY FORMFACTOR INC 416,331 16,700 0.49 0MML Small Cap Growth Equity Fund EQUITY CARTER S INC 884,934 10,221 1.03 0MML Small Cap Growth Equity Fund EQUITY ASSURED GUARANTY LTD 615,638 28,661 0.72 0MML Small Cap Growth Equity Fund EQUITY ENERSYS 979,885 14,599 1.14 0MML Small Cap Growth Equity Fund EQUITY LHC GROUP INC 963,534 4,533 1.12 0MML Small Cap Growth Equity Fund EQUITY WESTERN ALLIANCE BANCORP 743,481 23,513 0.87 0MML Small Cap Growth Equity Fund EQUITY ISHARES RUSSELL 2000 ETF 512,132 3,419 0.60 0MML Small Cap Growth Equity Fund EQUITY PERFICIENT INC 811,291 18,982 0.95 0MML Small Cap Growth Equity Fund EQUITY ENTEGRIS INC 447,527 6,020 0.52 0MML Small Cap Growth Equity Fund EQUITY METHANEX CORP 691,496 28,340 0.81 0MML Small Cap Growth Equity Fund EQUITY SKECHERS USA INC CL A 1,074,381 35,552 1.25 0MML Small Cap Growth Equity Fund CASH POUND STERLING 6 5 0.00 0MML Small Cap Growth Equity Fund EQUITY MCGRATH RENTCORP 1,007,548 16,908 1.18 0MML Small Cap Growth Equity Fund EQUITY GATX CORP 740,520 11,616 0.86 0MML Small Cap Growth Equity Fund EQUITY LOUISIANA PACIFIC CORP 824,362 27,935 0.96 0MML Small Cap Growth Equity Fund EQUITY ALBANY INTL CORP CL A 684,030 13,816 0.80 0MML Small Cap Growth Equity Fund EQUITY DECKERS OUTDOOR CORP 852,099 3,873 0.99 0MML Small Cap Growth Equity Fund EQUITY KENNAMETAL INC 1,065,108 36,804 1.24 0MML Small Cap Growth Equity Fund EQUITY LA Z BOY INC 989,987 31,299 1.15 0MML Small Cap Growth Equity Fund EQUITY MONRO INC 84,629 2,086 0.10 0MML Small Cap Growth Equity Fund EQUITY OCEANFIRST FINANCIAL CORP 681,310 49,767 0.79 0MML Small Cap Growth Equity Fund EQUITY GLAUKOS CORP 492,823 9,952 0.57 0MML Small Cap Growth Equity Fund EQUITY SANDERSON FARMS INC 699,798 5,932 0.82 0MML Small Cap Growth Equity Fund EQUITY SELECTIVE INSURANCE GROUP 763,339 14,825 0.89 0MML Small Cap Growth Equity Fund EQUITY SKYLINE CHAMPION CORP 971,189 36,279 1.13 0MML Small Cap Growth Equity Fund EQUITY WOLVERINE WORLD WIDE INC 475,456 18,400 0.55 0MML Small Cap Growth Equity Fund EQUITY DENNY S CORP 536,000 53,600 0.63 0MML Small Cap Growth Equity Fund EQUITY AMEDISYS INC 947,848 4,009 1.11 0MML Small Cap Growth Equity Fund EQUITY KIRBY CORP 463,699 12,820 0.54 0MML Small Cap Growth Equity Fund EQUITY LATTICE SEMICONDUCTOR CORP 631,676 21,812 0.74 0MML Small Cap Growth Equity Fund EQUITY MKS INSTRUMENTS INC 859,094 7,865 1.00 0MML Small Cap Growth Equity Fund EQUITY NU SKIN ENTERPRISES INC A 1,178,918 23,536 1.38 0MML Small Cap Growth Equity Fund EQUITY PS BUSINESS PARKS INC/CA 962,230 7,862 1.12 0MML Small Cap Growth Equity Fund EQUITY MGIC INVESTMENT CORP 815,421 92,034 0.95 0MML Small Cap Growth Equity Fund EQUITY NEW YORK TIMES CO A 875,526 20,461 1.02 0MML Small Cap Growth Equity Fund EQUITY POWER INTEGRATIONS INC 365,640 6,600 0.43 0MML Small Cap Growth Equity Fund EQUITY OMNICELL INC 941,761 12,614 1.10 0MML Small Cap Growth Equity Fund EQUITY MIMECAST LTD 989,918 21,098 1.15 0MML Small Cap Growth Equity Fund EQUITY BMC STOCK HOLDINGS INC 1,205,879 28,155 1.41 0MML Small Cap Growth Equity Fund EQUITY ATLANTICA SUSTAINABLE INFRAS 819,963 28,660 0.96 0MML Small Cap Growth Equity Fund EQUITY HERC HOLDINGS INC 835,771 21,100 0.98 0MML Small Cap Growth Equity Fund EQUITY CARDTRONICS PLC A 726,739 36,704 0.85 0MML Small Cap Growth Equity Fund EQUITY APELLIS PHARMACEUTICALS INC 374,108 12,400 0.44 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Small Cap Growth Equity Fund EQUITY LIFE STORAGE INC 962,063 9,139 1.12 0MML Small Cap Growth Equity Fund EQUITY FIRSTCASH INC 825,826 14,435 0.96 0MML Small Cap Growth Equity Fund EQUITY ACUSHNET HOLDINGS CORP 934,829 27,814 1.09 0MML Small Cap Growth Equity Fund EQUITY CRISPR THERAPEUTICS AG 411,007 4,914 0.48 0MML Small Cap Growth Equity Fund EQUITY CLOUDERA INC 876,917 80,525 1.02 0MML Small Cap Growth Equity Fund EQUITY BIOHAVEN PHARMACEUTICAL HOLD 413,399 6,359 0.48 0MML Small Cap Growth Equity Fund EQUITY JBG SMITH PROPERTIES 755,485 28,253 0.88 0MML Small Cap Growth Equity Fund EQUITY DELEK US HOLDINGS INC 336,260 30,212 0.39 0MML Small Cap Growth Equity Fund EQUITY BANDWIDTH INC CLASS A 692,345 3,966 0.81 0MML Small Cap Growth Equity Fund EQUITY CARDLYTICS INC 697,020 9,877 0.81 0MML Small Cap Growth Equity Fund EQUITY ESSENTIAL PROPERTIES REALTY 980,395 53,515 1.14 0MML Small Cap Growth Equity Fund EQUITY AVANOS MEDICAL INC 757,582 22,805 0.88 0MML Small Cap Growth Equity Fund EQUITY TRICIDA INC 139,442 15,391 0.16 0MML Small Cap Growth Equity Fund EQUITY CONSTELLATION PHARMACEUTICAL 275,374 13,592 0.32 0MML Small Cap Growth Equity Fund EQUITY Y MABS THERAPEUTICS INC 445,170 11,596 0.52 0MML Small Cap Growth Equity Fund EQUITY SVMK INC 982,502 44,437 1.15 0MML Small Cap Growth Equity Fund EQUITY KODIAK SCIENCES INC 463,555 7,829 0.54 0MML Small Cap Growth Equity Fund EQUITY TURNING POINT THERAPEUTICS I 516,123 5,908 0.60 0MML Small Cap Growth Equity Fund EQUITY ATLANTIC UNION BANKSHARES CO 828,280 38,759 0.97 0MML Small Cap Growth Equity Fund EQUITY AKERO THERAPEUTICS INC 257,250 8,355 0.30 0MML Small Cap Growth Equity Fund EQUITY BELLRING BRANDS INC CLASS A 911,751 43,961 1.06 0MML Small Cap Growth Equity Fund EQUITY SPROUT SOCIAL INC CLASS A 954,569 24,794 1.11 0MML Small Cap Growth Equity Fund EQUITY ENERPAC TOOL GROUP CORP 864,884 45,980 1.01 0MML Small Cap Growth Equity Fund EQUITY MAXEON SOLAR TECHNOLOGIE 163,036 9,613 0.19 0MML Small Cap Growth Equity Fund CASH EQUIVALENT FIXED INC CLEARING CORP.REPO 876,960 876,960 1.02 0 10/1/2020MML Small Cap Growth Equity Fund EQUITY ARENA PHARMACEUTICALS INC 501,542 6,706 0.59 0MML Small Cap Growth Equity Fund EQUITY CLEAN HARBORS INC 814,956 14,545 0.95 0MML Small Cap Growth Equity Fund EQUITY HAEMONETICS CORP/MASS 816,486 9,358 0.95 0MML Small Cap Growth Equity Fund EQUITY AKEBIA THERAPEUTICS INC 94,193 37,527 0.11 0MML Small Cap Growth Equity Fund EQUITY AMERIS BANCORP 872,132 38,285 1.02 0MML Small Cap Growth Equity Fund EQUITY POTLATCHDELTIC CORP 862,924 20,497 1.01 0MML Small Cap Growth Equity Fund EQUITY PORTLAND GENERAL ELECTRIC CO 738,187 20,794 0.86 0MML Small Cap Growth Equity Fund EQUITY CHART INDUSTRIES INC 1,037,185 14,760 1.21 0MML Small Cap Growth Equity Fund EQUITY CIENA CORP 666,276 16,787 0.78 0MML Small Cap Growth Equity Fund EQUITY FIRST SOLAR INC 1,110,637 16,777 1.30 0MML Small Cap Growth Equity Fund EQUITY ARGAN INC 682,588 16,287 0.80 0MML Small Cap Growth Equity Fund EQUITY CINEMARK HOLDINGS INC 613,990 61,399 0.72 0MML Small Cap Growth Equity Fund EQUITY GRAPHIC PACKAGING HOLDING CO 1,051,001 74,592 1.23 0MML Small Cap Growth Equity Fund EQUITY JOHN BEAN TECHNOLOGIES CORP 844,193 9,187 0.98 0MML Small Cap Growth Equity Fund EQUITY FIRST INTERSTATE BANCSYS A 896,896 28,160 1.05 0MML Small Cap Growth Equity Fund EQUITY GREEN DOT CORP CLASS A 568,603 11,235 0.66 0MML Small Cap Growth Equity Fund EQUITY AIR LEASE CORP 718,789 24,432 0.84 0MML Small Cap Growth Equity Fund EQUITY KEMPER CORP 829,962 12,419 0.97 0MML Small Cap Growth Equity Fund EQUITY ACADIA HEALTHCARE CO INC 687,002 23,304 0.80 0MML Small Cap Growth Equity Fund EQUITY SUNPOWER CORP 962,144 76,910 1.12 0MML Small Cap Growth Equity Fund EQUITY CHEMOCENTRYX INC 395,820 7,223 0.46 0MML Small Cap Growth Equity Fund EQUITY REXNORD CORP 1,069,704 35,848 1.25 0MML Small Cap Growth Equity Fund EQUITY TG THERAPEUTICS INC 96,336 3,600 0.11 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Small Cap Growth Equity Fund EQUITY FIVE BELOW 1,041,400 8,200 1.21 0MML Small Cap Growth Equity Fund EQUITY GLOBUS MEDICAL INC A 1,098,750 22,188 1.28 0MML Small Cap Growth Equity Fund EQUITY TOWER SEMICONDUCTOR LTD 936,508 51,400 1.09 0MML Small Cap Growth Equity Fund EQUITY NATIONAL BANK HOLD CL A 803,198 30,598 0.94 0MML Small Cap Growth Equity Fund EQUITY SHUTTERSTOCK INC 734,024 14,105 0.86 0MML Small Cap Growth Equity Fund EQUITY HANNON ARMSTRONG SUSTAINABLE 1,346,595 31,857 1.57 0MML Small Cap Growth Equity Fund EQUITY THIRD POINT REINSURANCE LTD 596,143 85,776 0.70 0MML Small Cap Growth Equity Fund EQUITY VERACYTE INC 426,984 13,142 0.50 0MML Small Cap Growth Equity Fund EQUITY STERLING BANCORP/DE 612,748 58,246 0.71 0MML Small Cap Growth Equity Fund EQUITY SEACOAST BANKING CORP/FL 806,248 44,717 0.94 0MML Small Cap Growth Equity Fund EQUITY DRAFTKINGS INC 1,437,309 24,562 1.44 0MML Small Cap Growth Equity Fund EQUITY ALX ONCOLOGY HOLDINGS INC 649,241 17,203 0.65 0MML Small Cap Growth Equity Fund EQUITY BOWX ACQUISITION CORP 706,309 68,841 0.71 0MML Small Cap Growth Equity Fund EQUITY FREELINE THERAPEUTICS HOLDIN 326,249 20,900 0.33 0MML Small Cap Growth Equity Fund CASH EQUIVALENT FIXED INC CLEARING CORP.REPO 293,387 293,387 0.29 0 10/1/2020MML Small Cap Growth Equity Fund EQUITY RAPT THERAPEUTICS INC 318,555 9,893 0.32 0MML Small Cap Growth Equity Fund EQUITY CURTISS WRIGHT CORP 1,334,924 14,314 1.34 0MML Small Cap Growth Equity Fund EQUITY HILL ROM HOLDINGS INC 705,242 8,445 0.71 0MML Small Cap Growth Equity Fund EQUITY MIRATI THERAPEUTICS INC 951,799 5,732 0.95 0MML Small Cap Growth Equity Fund EQUITY ACCELERON PHARMA INC 654,362 5,815 0.66 0MML Small Cap Growth Equity Fund EQUITY HERON THERAPEUTICS INC 582,811 39,326 0.58 0MML Small Cap Growth Equity Fund EQUITY BLUEPRINT MEDICINES CORP 549,989 5,933 0.55 0MML Small Cap Growth Equity Fund EQUITY GLOBAL BLOOD THERAPEUTICS IN 581,065 10,538 0.58 0MML Small Cap Growth Equity Fund EQUITY ALLAKOS INC 657,220 8,069 0.66 0MML Small Cap Growth Equity Fund EQUITY PAYLOCITY HOLDING CORP 949,311 5,881 0.95 0MML Small Cap Growth Equity Fund EQUITY Q2 HOLDINGS INC 1,004,773 11,010 1.01 0MML Small Cap Growth Equity Fund EQUITY TRINET GROUP INC 1,042,905 17,581 1.05 0MML Small Cap Growth Equity Fund EQUITY 2U INC 644,390 19,031 0.65 0MML Small Cap Growth Equity Fund EQUITY FIVE9 INC 1,172,437 9,041 1.18 0MML Small Cap Growth Equity Fund EQUITY CENTURY COMMUNITIES INC 736,923 17,409 0.74 0MML Small Cap Growth Equity Fund EQUITY ADVANCED DRAINAGE SYSTEMS IN 1,808,075 28,957 1.81 0MML Small Cap Growth Equity Fund EQUITY HUBSPOT INC 1,125,670 3,852 1.13 0MML Small Cap Growth Equity Fund EQUITY PRA GROUP INC 942,660 23,596 0.94 0MML Small Cap Growth Equity Fund EQUITY JAMES RIVER GROUP HOLDINGS L 611,219 13,726 0.61 0MML Small Cap Growth Equity Fund EQUITY DIGITAL TURBINE INC 863,976 26,389 0.87 0MML Small Cap Growth Equity Fund EQUITY ASCENDIS PHARMA A/S ADR 671,909 4,354 0.67 0MML Small Cap Growth Equity Fund EQUITY KORNIT DIGITAL LTD 906,688 13,977 0.91 0MML Small Cap Growth Equity Fund EQUITY MARKLOGIC CORPORATION 207,613 22,966 0.21 0MML Small Cap Growth Equity Fund EQUITY OLLIE S BARGAIN OUTLET HOLDI 1,273,476 14,579 1.28 0MML Small Cap Growth Equity Fund EQUITY RAPID7 INC 1,554,332 25,381 1.56 0MML Small Cap Growth Equity Fund EQUITY LUMENTUM HOLDINGS INC 649,799 8,649 0.65 0MML Small Cap Growth Equity Fund EQUITY /US/99Z03QI47 HONEST CO/THE 166,396 4,027 0.17 0MML Small Cap Growth Equity Fund EQUITY PLANET FITNESS INC CL A 569,862 9,248 0.57 0MML Small Cap Growth Equity Fund EQUITY NOVOCURE LTD 600,184 5,392 0.60 0MML Small Cap Growth Equity Fund EQUITY PERFICIENT INC 1,047,258 24,503 1.05 0MML Small Cap Growth Equity Fund EQUITY ENTEGRIS INC 804,061 10,816 0.81 0MML Small Cap Growth Equity Fund CASH POUND STERLING 3 2 0.00 0MML Small Cap Growth Equity Fund CASH HONG KONG DOLLAR 1 11 0.00 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Small Cap Growth Equity Fund EQUITY POLARIS INC 1,059,250 11,228 1.06 0MML Small Cap Growth Equity Fund EQUITY COMFORT SYSTEMS USA INC 1,641,727 31,872 1.65 0MML Small Cap Growth Equity Fund EQUITY KENNAMETAL INC 962,313 33,252 0.96 0MML Small Cap Growth Equity Fund EQUITY PENN NATIONAL GAMING INC 1,260,255 17,335 1.26 0MML Small Cap Growth Equity Fund EQUITY SKYLINE CHAMPION CORP 1,304,395 48,726 1.31 0MML Small Cap Growth Equity Fund EQUITY THOR INDUSTRIES INC 1,195,227 12,547 1.20 0MML Small Cap Growth Equity Fund EQUITY II VI INC 939,207 23,156 0.94 0MML Small Cap Growth Equity Fund EQUITY WOLVERINE WORLD WIDE INC 1,478,797 57,229 1.48 0MML Small Cap Growth Equity Fund EQUITY BOSTON BEER COMPANY INC A 708,455 802 0.71 0MML Small Cap Growth Equity Fund EQUITY IMMUNOGEN INC 356,281 98,967 0.36 0MML Small Cap Growth Equity Fund EQUITY STEVEN MADDEN LTD 546,000 28,000 0.55 0MML Small Cap Growth Equity Fund EQUITY MYOKARDIA INC 1,379,251 10,117 1.38 0MML Small Cap Growth Equity Fund EQUITY MIMECAST LTD 774,133 16,499 0.78 0MML Small Cap Growth Equity Fund EQUITY BMC STOCK HOLDINGS INC 1,130,541 26,396 1.13 0MML Small Cap Growth Equity Fund EQUITY INGEVITY CORP 829,059 16,769 0.83 0MML Small Cap Growth Equity Fund EQUITY ITT INC 1,536,835 26,026 1.54 0MML Small Cap Growth Equity Fund EQUITY NOVANTA INC 1,080,999 10,262 1.08 0MML Small Cap Growth Equity Fund EQUITY REATA PHARMACEUTICALS INC A 287,974 2,956 0.29 0MML Small Cap Growth Equity Fund EQUITY FLOOR + DECOR HOLDINGS INC A 1,380,284 18,453 1.38 0MML Small Cap Growth Equity Fund EQUITY APELLIS PHARMACEUTICALS INC 370,638 12,285 0.37 0MML Small Cap Growth Equity Fund EQUITY MEDPACE HOLDINGS INC 680,781 6,092 0.68 0MML Small Cap Growth Equity Fund EQUITY HAMILTON LANE INC CLASS A 401,039 6,209 0.40 0MML Small Cap Growth Equity Fund EQUITY AXON ENTERPRISE INC 655,308 7,225 0.66 0MML Small Cap Growth Equity Fund EQUITY VERACODE INC PP 7,172 10,688 0.01 0MML Small Cap Growth Equity Fund EQUITY UROGEN PHARMA LTD 459,237 23,807 0.46 0MML Small Cap Growth Equity Fund EQUITY ARENA PHARMACEUTICALS INC 570,797 7,632 0.57 0MML Small Cap Growth Equity Fund EQUITY IOVANCE BIOTHERAPEUTICS INC 575,672 17,487 0.58 0MML Small Cap Growth Equity Fund EQUITY MERSANA THERAPEUTICS INC 424,741 22,811 0.43 0MML Small Cap Growth Equity Fund EQUITY REDFIN CORP 800,078 16,024 0.80 0MML Small Cap Growth Equity Fund EQUITY TANDEM DIABETES CARE INC 1,879,560 16,560 1.88 0MML Small Cap Growth Equity Fund EQUITY ACM RESEARCH INC CLASS A 592,049 8,568 0.59 0MML Small Cap Growth Equity Fund EQUITY BANDWIDTH INC CLASS A 1,554,895 8,907 1.56 0MML Small Cap Growth Equity Fund EQUITY CARDLYTICS INC 756,510 10,720 0.76 0MML Small Cap Growth Equity Fund EQUITY ESSENTIAL PROPERTIES REALTY 885,754 48,349 0.89 0MML Small Cap Growth Equity Fund EQUITY CONSTELLATION PHARMACEUTICAL 366,058 18,068 0.37 0MML Small Cap Growth Equity Fund EQUITY ENDAVA PLC SPON ADR 735,824 11,652 0.74 0MML Small Cap Growth Equity Fund EQUITY Y MABS THERAPEUTICS INC 1,067,971 27,819 1.07 0MML Small Cap Growth Equity Fund EQUITY KODIAK SCIENCES INC 844,394 14,261 0.85 0MML Small Cap Growth Equity Fund EQUITY LIVERAMP HOLDINGS INC 1,112,951 21,498 1.12 0MML Small Cap Growth Equity Fund EQUITY YETI HOLDINGS INC 989,426 21,832 0.99 0MML Small Cap Growth Equity Fund EQUITY ARES MANAGEMENT CORP A 874,083 21,625 0.88 0MML Small Cap Growth Equity Fund EQUITY TURNING POINT THERAPEUTICS I 820,485 9,392 0.82 0MML Small Cap Growth Equity Fund EQUITY PAGERDUTY INC 707,300 26,090 0.71 0MML Small Cap Growth Equity Fund EQUITY HEALTH CATALYST INC 1,029,338 28,124 1.03 0MML Small Cap Growth Equity Fund EQUITY 1LIFE HEALTHCARE INC 413,602 14,584 0.41 0MML Small Cap Growth Equity Fund EQUITY MANHATTAN ASSOCIATES INC 1,129,360 11,827 1.13 0MML Small Cap Growth Equity Fund EQUITY TETRA TECH INC 1,711,933 17,926 1.72 0MML Small Cap Growth Equity Fund EQUITY MKS INSTRUMENTS INC 973,349 8,911 0.98 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Small Cap Growth Equity Fund EQUITY OMNICELL INC 535,835 7,177 0.54 0MML Small Cap Growth Equity Fund EQUITY RUSH ENTERPRISES INC CL A 909,922 18,004 0.91 0MML Small Cap Growth Equity Fund EQUITY CAVCO INDUSTRIES INC 1,034,979 5,740 1.04 0MML Small Cap Growth Equity Fund EQUITY GIBRALTAR INDUSTRIES INC 863,822 13,261 0.87 0MML Small Cap Growth Equity Fund EQUITY LHC GROUP INC 1,679,649 7,902 1.68 0MML Small Cap Growth Equity Fund EQUITY WESTERN ALLIANCE BANCORP 950,213 30,051 0.95 0MML Small Cap Growth Equity Fund EQUITY IROBOT CORP 643,404 8,477 0.64 0MML Small Cap Growth Equity Fund EQUITY SAIA INC 1,131,224 8,968 1.13 0MML Small Cap Growth Equity Fund EQUITY CHART INDUSTRIES INC 851,321 12,115 0.85 0MML Small Cap Growth Equity Fund EQUITY FIRST SOLAR INC 1,096,603 16,565 1.10 0MML Small Cap Growth Equity Fund EQUITY ARGAN INC 1,037,440 24,754 1.04 0MML Small Cap Growth Equity Fund EQUITY INSULET CORP 1,468,278 6,206 1.47 0MML Small Cap Growth Equity Fund EQUITY AMICUS THERAPEUTICS INC 923,081 65,374 0.93 0MML Small Cap Growth Equity Fund EQUITY J2 GLOBAL INC 830,986 12,005 0.83 0MML Small Cap Growth Equity Fund EQUITY CHEMOCENTRYX INC 534,464 9,753 0.54 0MML Small Cap Growth Equity Fund EQUITY REXNORD CORP 1,610,554 53,973 1.61 0MML Small Cap Growth Equity Fund EQUITY FIVE BELOW 1,717,421 13,523 1.72 0MML Small Cap Growth Equity Fund EQUITY GLOBUS MEDICAL INC A 1,025,559 20,710 1.03 0MML Small Cap Growth Equity Fund EQUITY TOWER SEMICONDUCTOR LTD 1,363,967 74,861 1.37 0MML Small Cap Growth Equity Fund EQUITY HANNON ARMSTRONG SUSTAINABLE 949,553 22,464 0.95 0MML Small Cap Growth Equity Fund EQUITY BRP INC/CA SUB VOTING 995,747 18,847 1.00 0MML Small Cap Growth Equity Fund EQUITY PTC THERAPEUTICS INC 706,626 15,115 0.71 0MML Small Cap Growth Equity Fund EQUITY NANOSTRING TECHNOLOGIES INC 669,919 14,987 0.67 0MML Small Cap Growth Equity Fund EQUITY FOX FACTORY HOLDING CORP 869,735 11,701 0.87 0MML Small Cap Growth Equity Fund EQUITY STERLING BANCORP/DE 871,203 82,814 0.87 0MML Small Cap Growth Equity Fund EQUITY CHEGG INC 1,491,310 20,875 1.49 0MML Small Cap Growth Equity Fund EQUITY REVANCE THERAPEUTICS INC 662,263 26,343 0.66 0MML Large Cap Growth Fund EQUITY ROCHE HOLDINGS LTD SPONS ADR 4,271,539 99,779 2.99 0MML Large Cap Growth Fund EQUITY MONSTER BEVERAGE CORP 5,070,003 63,217 3.55 0MML Large Cap Growth Fund EQUITY AMAZON.COM INC 10,686,790 3,394 7.48 0MML Large Cap Growth Fund EQUITY REGENERON PHARMACEUTICALS 4,802,353 8,579 3.36 0MML Large Cap Growth Fund EQUITY CERNER CORP 2,508,824 34,705 1.75 0MML Large Cap Growth Fund EQUITY VARIAN MEDICAL SYSTEMS INC 1,027,356 5,973 0.72 0MML Large Cap Growth Fund EQUITY SEI INVESTMENTS COMPANY 2,045,132 40,322 1.43 0MML Large Cap Growth Fund EQUITY CISCO SYSTEMS INC 2,362,494 59,977 1.65 0MML Large Cap Growth Fund EQUITY WALT DISNEY CO/THE 2,739,810 22,081 1.92 0MML Large Cap Growth Fund EQUITY MICROSOFT CORP 6,265,941 29,791 4.38 0MML Large Cap Growth Fund EQUITY ORACLE CORP 5,652,098 94,675 3.95 0MML Large Cap Growth Fund EQUITY DEERE + CO 5,273,243 23,793 3.69 0MML Large Cap Growth Fund EQUITY COLGATE PALMOLIVE CO 2,332,939 30,239 1.63 0MML Large Cap Growth Fund EQUITY SCHLUMBERGER LTD 818,721 52,617 0.57 0MML Large Cap Growth Fund EQUITY BOEING CO/THE 4,089,854 24,748 2.86 0MML Large Cap Growth Fund EQUITY QUALCOMM INC 3,297,747 28,023 2.31 0MML Large Cap Growth Fund EQUITY NOVARTIS AG SPONSORED ADR 2,475,403 28,466 1.73 0MML Large Cap Growth Fund EQUITY NOVO NORDISK A/S SPONS ADR 1,478,651 21,297 1.03 0MML Large Cap Growth Fund EQUITY AUTODESK INC 6,489,071 28,090 4.54 0MML Large Cap Growth Fund EQUITY YUM BRANDS INC 1,730,135 18,950 1.21 0MML Large Cap Growth Fund EQUITY INTUITIVE SURGICAL INC 1,884,538 2,656 1.32 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Large Cap Growth Fund EQUITY SALESFORCE.COM INC 7,082,952 28,183 4.95 0MML Large Cap Growth Fund EQUITY VISA INC CLASS A SHARES 8,505,124 42,532 5.95 0MML Large Cap Growth Fund EQUITY FACEBOOK INC CLASS A 8,413,538 32,125 5.89 0MML Large Cap Growth Fund EQUITY WORKDAY INC CLASS A 2,164,853 10,063 1.51 0MML Large Cap Growth Fund EQUITY ALIBABA GROUP HOLDING SP ADR 9,608,148 32,683 6.72 0MML Large Cap Growth Fund EQUITY ALPHABET INC CL C 3,744,541 2,548 2.62 0MML Large Cap Growth Fund EQUITY ALPHABET INC CL A 3,727,021 2,543 2.61 0MML Large Cap Growth Fund CASH EQUIVALENT FIXED INC CLEARING CORP.REPO 691,805 691,805 0.48 0 10/1/2020MML Large Cap Growth Fund EQUITY YUM CHINA HOLDINGS INC 1,486,307 28,070 1.04 0MML Large Cap Growth Fund EQUITY FACTSET RESEARCH SYSTEMS INC 2,376,308 7,096 1.66 0MML Large Cap Growth Fund EQUITY NVIDIA CORP 7,929,955 14,652 5.55 0MML Large Cap Growth Fund EQUITY AUTOMATIC DATA PROCESSING 901,803 6,465 0.63 0MML Large Cap Growth Fund EQUITY STARBUCKS CORP 2,549,676 29,675 1.78 0MML Large Cap Growth Fund EQUITY ILLUMINA INC 2,938,733 9,508 2.06 0MML Large Cap Growth Fund EQUITY EXPEDITORS INTL WASH INC 3,530,371 39,001 2.47 0MML Equity Income Fund EQUITY KOHLS CORP 1,497,224 80,800 0.36 0MML Equity Income Fund EQUITY PPG INDUSTRIES INC 1,110,928 9,100 0.27 0MML Equity Income Fund EQUITY QUALCOMM INC 14,478,523 123,033 3.50 0MML Equity Income Fund EQUITY TJX COMPANIES INC 801,360 14,400 0.19 0MML Equity Income Fund EQUITY WEYERHAEUSER CO 7,847,877 275,171 1.90 0MML Equity Income Fund EQUITY MGM RESORTS INTERNATIONAL 239,250 11,000 0.06 0MML Equity Income Fund EQUITY SCHWAB (CHARLES) CORP 1,036,178 28,600 0.25 0MML Equity Income Fund EQUITY GLAXOSMITHKLINE PLC SPON ADR 1,046,392 27,800 0.25 0MML Equity Income Fund EQUITY TOTAL SE SPON ADR 504,210 14,700 0.12 0MML Equity Income Fund EQUITY TYSON FOODS INC CL A 7,553,960 127,000 1.83 0MML Equity Income Fund EQUITY RAYMOND JAMES FINANCIAL INC 2,517,496 34,600 0.61 0MML Equity Income Fund EQUITY VERIZON COMMUNICATIONS INC 2,831,962 47,604 0.68 0MML Equity Income Fund EQUITY GLAXOSMITHKLINE PLC 1,730,001 92,356 0.42 0MML Equity Income Fund EQUITY JPMORGAN CHASE + CO 3,745,962 38,911 0.91 0MML Equity Income Fund EQUITY ZIMMER BIOMET HOLDINGS INC 2,382,450 17,500 0.58 0MML Equity Income Fund EQUITY BUNGE LTD 1,211,050 26,500 0.29 0MML Equity Income Fund EQUITY CHEVRON CORP 934,992 12,986 0.23 0MML Equity Income Fund EQUITY COMCAST CORP CLASS A 8,022,178 173,415 1.94 0MML Equity Income Fund EQUITY LAS VEGAS SANDS CORP 3,877,446 83,100 0.94 0MML Equity Income Fund EQUITY CF INDUSTRIES HOLDINGS INC 5,751,983 187,300 1.39 0MML Equity Income Fund EQUITY AT+T INC 833,860 29,248 0.20 0MML Equity Income Fund EQUITY HESS CORP 720,368 17,600 0.17 0MML Equity Income Fund EQUITY TOTAL SE 7,538,470 219,569 1.82 0MML Equity Income Fund EQUITY AMERICAN INTERNATIONAL GROUP 6,752,971 245,295 1.63 0MML Equity Income Fund EQUITY MERCK + CO. INC. 1,592,640 19,200 0.39 0MML Equity Income Fund EQUITY NEXTERA ENERGY INC 3,274,653 11,798 0.79 0MML Equity Income Fund EQUITY NXP SEMICONDUCTORS NV 1,298,024 10,400 0.31 0MML Equity Income Fund EQUITY GENERAL MOTORS CO 724,955 24,500 0.18 0MML Equity Income Fund EQUITY SANOFI 405,187 4,041 0.10 0MML Equity Income Fund EQUITY BECTON DICKINSON AND CO 5,465,421 23,489 1.32 0MML Equity Income Fund EQUITY CONAGRA BRANDS INC 6,407,767 179,439 1.55 0MML Equity Income Fund EQUITY FRANKLIN RESOURCES INC 1,394,972 68,549 0.34 0MML Equity Income Fund EQUITY CVS HEALTH CORP 6,496,474 111,241 1.57 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Equity Income Fund EQUITY CISCO SYSTEMS INC 6,082,367 154,414 1.47 0MML Equity Income Fund EQUITY WALT DISNEY CO/THE 3,596,335 28,984 0.87 0MML Equity Income Fund EQUITY ENBRIDGE INC 4,061,136 139,080 0.98 0MML Equity Income Fund CASH EQUIVALENT ROWE T PRICE GOV RES FD 1,075 1,075 0.00 0.01 9/19/2034MML Equity Income Fund EQUITY MAGNA INTERNATIONAL INC 164,700 3,600 0.04 0MML Equity Income Fund EQUITY ROYAL CARIBBEAN CRUISES LTD 245,974 3,800 0.06 0MML Equity Income Fund EQUITY FIFTH THIRD BANCORP 6,500,148 304,885 1.57 0MML Equity Income Fund EQUITY SEMPRA ENERGY 3,425,338 28,940 0.83 0MML Equity Income Fund EQUITY EOG RESOURCES INC 1,484,322 41,300 0.36 0MML Equity Income Fund EQUITY EDISON INTERNATIONAL 4,173,608 82,093 1.01 0MML Equity Income Fund EQUITY LOEWS CORP 5,510,655 158,580 1.33 0MML Equity Income Fund EQUITY NISOURCE INC 7,649,686 347,713 1.85 0MML Equity Income Fund EQUITY SOUTHERN CO/THE 11,628,835 214,475 2.81 0MML Equity Income Fund EQUITY ALASKA AIR GROUP INC 1,170,585 31,957 0.28 0MML Equity Income Fund EQUITY AMEREN CORPORATION 1,803,024 22,800 0.44 0MML Equity Income Fund EQUITY CUMMINS INC 591,248 2,800 0.14 0MML Equity Income Fund EQUITY INTERNATIONAL PAPER CO 6,721,694 165,804 1.63 0MML Equity Income Fund EQUITY OCCIDENTAL PETROLEUM CORP 577,867 57,729 0.14 0MML Equity Income Fund EQUITY PIONEER NATURAL RESOURCES CO 541,737 6,300 0.13 0MML Equity Income Fund EQUITY RAYONIER INC 3,554,620 134,441 0.86 0MML Equity Income Fund EQUITY APPLIED MATERIALS INC 4,569,981 76,871 1.11 0MML Equity Income Fund EQUITY FLOWSERVE CORP 247,357 9,064 0.06 0MML Equity Income Fund EQUITY STERICYCLE INC 3,676,524 58,302 0.89 0MML Equity Income Fund EQUITY GILEAD SCIENCES INC 3,585,401 56,740 0.87 0MML Equity Income Fund EQUITY WESTERN DIGITAL CORP 325,295 8,900 0.08 0MML Equity Income Fund EQUITY COCA COLA CO/THE 2,350,012 47,600 0.57 0MML Equity Income Fund EQUITY METLIFE INC 7,670,773 206,370 1.86 0MML Equity Income Fund EQUITY PACCAR INC 1,918,800 22,500 0.46 0MML Equity Income Fund EQUITY PHILIP MORRIS INTERNATIONAL 8,406,379 112,100 2.03 0MML Equity Income Fund EQUITY VOLKSWAGEN AG UNSP ADR PREF 2,418,516 149,939 0.58 0MML Equity Income Fund EQUITY L3HARRIS TECHNOLOGIES INC 6,264,888 36,887 1.52 0MML Equity Income Fund EQUITY SOUTHERN CO 1,908,838 41,015 0.46 0MML Equity Income Fund EQUITY EQUITABLE HOLDINGS INC 2,728,157 149,570 0.66 0MML Equity Income Fund EQUITY NEXTERA ENERGY INC 1,371,272 29,376 0.33 0MML Equity Income Fund EQUITY BECTON DICKINSON AND CO 1,966,109 37,343 0.48 0MML Equity Income Fund EQUITY OCCIDENTAL PETROLEUM CORP 32,409 10,803 0.01 0MML Equity Income Fund CASH EQUIVALENT FIXED INC CLEARING CORP.REPO 2,862,401 2,862,401 0.69 0 10/1/2020MML Equity Income Fund EQUITY FOX CORP CLASS B 4,657,425 166,515 1.13 0MML Equity Income Fund EQUITY TARGA RESOURCES CORP 2,014,947 143,617 0.49 0MML Equity Income Fund EQUITY TE CONNECTIVITY LTD 977,400 10,000 0.24 0MML Equity Income Fund EQUITY DUKE ENERGY CORP 552,437 6,238 0.13 0MML Equity Income Fund EQUITY MONDELEZ INTERNATIONAL INC A 304,485 5,300 0.07 0MML Equity Income Fund EQUITY ABBVIE INC 7,234,934 82,600 1.75 0MML Equity Income Fund EQUITY NEWS CORP CLASS A 4,829,694 344,486 1.17 0MML Equity Income Fund EQUITY ANTHEM INC 6,784,046 25,258 1.64 0MML Equity Income Fund EQUITY MEDTRONIC PLC 6,981,657 67,183 1.69 0MML Equity Income Fund EQUITY NIELSEN HOLDINGS PLC 2,798,125 197,329 0.68 0MML Equity Income Fund EQUITY WELLTOWER INC 286,468 5,200 0.07 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Equity Income Fund EQUITY WILLIS TOWERS WATSON PLC 1,031,780 4,941 0.25 0MML Equity Income Fund EQUITY CHUBB LTD 8,595,086 74,019 2.08 0MML Equity Income Fund EQUITY JOHNSON CONTROLS INTERNATION 2,418,402 59,202 0.58 0MML Equity Income Fund EQUITY SEMPRA ENERGY 2,414,191 24,522 0.58 0MML Equity Income Fund EQUITY NVENT ELECTRIC PLC 376,797 21,300 0.09 0MML Equity Income Fund FIXED INCOME AXA SA 1,020,825 1,170,000 0.25 7.25 5/15/2021MML Equity Income Fund EQUITY SEMPRA ENERGY 729,978 7,448 0.18 0MML Equity Income Fund EQUITY AKZO NOBEL N.V. 992,798 9,803 0.24 0MML Equity Income Fund EQUITY TC ENERGY CORP 4,752,252 113,095 1.15 0MML Equity Income Fund EQUITY DUPONT DE NEMOURS INC 9,476,261 170,805 2.29 0MML Equity Income Fund EQUITY EXXON MOBIL CORP 3,061,378 89,175 0.74 0MML Equity Income Fund EQUITY GENERAL ELECTRIC CO 7,421,799 1,191,300 1.79 0MML Equity Income Fund EQUITY MICROSOFT CORP 6,441,987 30,628 1.56 0MML Equity Income Fund EQUITY MORGAN STANLEY 7,912,671 163,654 1.91 0MML Equity Income Fund EQUITY PFIZER INC 6,734,487 183,501 1.63 0MML Equity Income Fund EQUITY WALMART INC 2,439,471 17,436 0.59 0MML Equity Income Fund EQUITY WELLS FARGO + CO 10,574,798 449,800 2.56 0MML Equity Income Fund EQUITY KIMBERLY CLARK CORP 5,609,160 37,987 1.36 0MML Equity Income Fund EQUITY PNC FINANCIAL SERVICES GROUP 3,692,976 33,600 0.89 0MML Equity Income Fund EQUITY BANK OF AMERICA CORP 1,278,625 53,077 0.31 0MML Equity Income Fund EQUITY EMERSON ELECTRIC CO 1,416,312 21,600 0.34 0MML Equity Income Fund CASH US DOLLAR 0 0 - 0MML Equity Income Fund EQUITY BRISTOL MYERS SQUIBB CO 434,088 7,200 0.10 0MML Equity Income Fund EQUITY MARSH + MCLENNAN COS 1,273,170 11,100 0.31 0MML Equity Income Fund EQUITY MATTEL INC 2,398,500 205,000 0.58 0MML Equity Income Fund EQUITY TEXAS INSTRUMENTS INC 5,193,701 36,373 1.26 0MML Equity Income Fund EQUITY JOHNSON + JOHNSON 7,138,647 47,949 1.73 0MML Equity Income Fund EQUITY MCDONALD S CORP 724,317 3,300 0.18 0MML Equity Income Fund EQUITY STATE STREET CORP 5,363,432 90,400 1.30 0MML Equity Income Fund EQUITY MARRIOTT INTERNATIONAL CL A 398,094 4,300 0.10 0MML Equity Income Fund EQUITY UNITED PARCEL SERVICE CL B 11,434,317 68,621 2.77 0MML Equity Income Fund EQUITY SNAP ON INC 2,589,488 17,600 0.63 0MML Equity Income Fund EQUITY EQUITY RESIDENTIAL 4,391,743 85,559 1.06 0MML Equity Income Fund EQUITY SL GREEN REALTY CORP 2,500,317 53,921 0.60 0MML Equity Income Fund CASH EURO CURRENCY 148,728 126,852 0.04 0MML Equity Income Fund EQUITY CATERPILLAR INC 1,297,605 8,700 0.31 0MML Equity Income Fund EQUITY SCHLUMBERGER LTD 224,064 14,400 0.05 0MML Equity Income Fund EQUITY BOEING CO/THE 5,433,253 32,877 1.31 0MML Equity Income Fund EQUITY CORNING INC 842,660 26,000 0.20 0MML Equity Income Fund EQUITY HALLIBURTON CO 2,059,345 170,900 0.50 0MML Mid Cap Value Fund EQUITY HOLOGIC INC 2,816,799 42,377 0.73 0MML Mid Cap Value Fund EQUITY OSHKOSH CORP 3,307,059 44,994 0.85 0MML Mid Cap Value Fund EQUITY QUEST DIAGNOSTICS INC 6,448,878 56,327 1.66 0MML Mid Cap Value Fund EQUITY HENRY SCHEIN INC 4,433,129 75,419 1.14 0MML Mid Cap Value Fund EQUITY APPLIED MATERIALS INC 5,646,502 94,979 1.46 0MML Mid Cap Value Fund EQUITY ATMOS ENERGY CORP 3,672,472 38,419 0.95 0MML Mid Cap Value Fund EQUITY BROWN + BROWN INC 814,181 17,985 0.21 0MML Mid Cap Value Fund EQUITY CERNER CORP 5,460,425 75,535 1.41 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Mid Cap Value Fund EQUITY ARTHUR J GALLAGHER + CO 3,259,888 30,876 0.84 0MML Mid Cap Value Fund EQUITY HEARTLAND EXPRESS INC 3,305,090 177,693 0.85 0MML Mid Cap Value Fund EQUITY MSC INDUSTRIAL DIRECT CO A 5,410,060 85,494 1.39 0MML Mid Cap Value Fund EQUITY BAE SYSTEMS PLC 3,664,401 592,418 0.94 0MML Mid Cap Value Fund EQUITY UNIVERSAL HEALTH SERVICES B 6,832,264 63,841 1.76 0MML Mid Cap Value Fund EQUITY WESTAMERICA BANCORPORATION 2,880,659 53,002 0.74 0MML Mid Cap Value Fund EQUITY BECTON DICKINSON AND CO 2,936,654 12,621 0.76 0MML Mid Cap Value Fund EQUITY CONAGRA BRANDS INC 5,881,758 164,709 1.52 0MML Mid Cap Value Fund EQUITY GENERAL DYNAMICS CORP 3,845,170 27,777 0.99 0MML Mid Cap Value Fund EQUITY GENUINE PARTS CO 5,279,365 55,473 1.36 0MML Mid Cap Value Fund EQUITY KIMBERLY CLARK CORP 1,744,308 11,813 0.45 0MML Mid Cap Value Fund EQUITY EMERSON ELECTRIC CO 8,978,828 136,935 2.31 0MML Mid Cap Value Fund EQUITY SONOCO PRODUCTS CO 5,711,924 111,845 1.47 0MML Mid Cap Value Fund EQUITY EURONET WORLDWIDE INC 1,509,891 16,574 0.39 0MML Mid Cap Value Fund EQUITY F5 NETWORKS INC 5,470,017 44,555 1.41 0MML Mid Cap Value Fund EQUITY COMMERCE BANCSHARES INC 4,461,996 79,268 1.15 0MML Mid Cap Value Fund EQUITY NORTHERN TRUST CORP 11,245,847 144,233 2.90 0MML Mid Cap Value Fund EQUITY KELLOGG CO 4,037,585 62,511 1.04 0MML Mid Cap Value Fund EQUITY PACKAGING CORP OF AMERICA 5,219,024 47,859 1.35 0MML Mid Cap Value Fund EQUITY ROGERS COMMUNICATIONS INC B 4,095,211 103,237 1.06 0MML Mid Cap Value Fund EQUITY MCKESSON CORP 5,620,618 37,740 1.45 0MML Mid Cap Value Fund EQUITY FOX CORP CLASS B 4,511,701 161,305 1.16 0MML Mid Cap Value Fund EQUITY ENVISTA HOLDINGS CORP 6,065,431 245,763 1.56 0MML Mid Cap Value Fund EQUITY HEALTHPEAK PROPERTIES INC 2,210,363 81,413 0.57 0MML Mid Cap Value Fund EQUITY TRUIST FINANCIAL CORP 3,664,596 96,310 0.94 0MML Mid Cap Value Fund CASH EQUIVALENT FIXED INC CLEARING CORP.REPO 8,598,738 8,598,738 2.22 0 10/1/2020MML Mid Cap Value Fund EQUITY HONDA MOTOR CO LTD SPONS ADR 3,579,245 151,023 0.92 0MML Mid Cap Value Fund EQUITY CARDINAL HEALTH INC 4,561,286 97,152 1.18 0MML Mid Cap Value Fund EQUITY SYSCO CORP 4,382,652 70,438 1.13 0MML Mid Cap Value Fund EQUITY TEXTRON INC 3,368,244 93,329 0.87 0MML Mid Cap Value Fund EQUITY STATE STREET CORP 2,231,579 37,613 0.58 0MML Mid Cap Value Fund CASH EURO CURRENCY 0 0 - 0MML Mid Cap Value Fund EQUITY MAXIM INTEGRATED PRODUCTS 3,112,900 46,042 0.80 0MML Mid Cap Value Fund EQUITY SOUTHWEST AIRLINES CO 5,622,488 149,933 1.45 0MML Mid Cap Value Fund EQUITY WEYERHAEUSER CO 3,970,041 139,202 1.02 0MML Mid Cap Value Fund EQUITY AFLAC INC 3,713,661 102,164 0.96 0MML Mid Cap Value Fund EQUITY SCHWAB (CHARLES) CORP 3,082,883 85,092 0.79 0MML Mid Cap Value Fund EQUITY REPUBLIC SERVICES INC 6,621,596 70,933 1.71 0MML Mid Cap Value Fund EQUITY PACCAR INC 4,552,246 53,380 1.17 0MML Mid Cap Value Fund EQUITY MICROCHIP TECHNOLOGY INC 1,635,631 15,917 0.42 0MML Mid Cap Value Fund EQUITY LINCOLN ELECTRIC HOLDINGS 1,749,588 19,009 0.45 0MML Mid Cap Value Fund EQUITY XCEL ENERGY INC 3,254,650 47,162 0.84 0MML Mid Cap Value Fund EQUITY T ROWE PRICE GROUP INC 3,289,356 25,654 0.85 0MML Mid Cap Value Fund EQUITY SODEXO SA 3,988,422 56,007 1.03 0MML Mid Cap Value Fund EQUITY ZIMMER BIOMET HOLDINGS INC 11,634,116 85,457 3.00 0MML Mid Cap Value Fund EQUITY ADVANCE AUTO PARTS INC 6,197,409 40,374 1.60 0MML Mid Cap Value Fund EQUITY ISHARES RUSSELL MID CAP VALUE 8,339,616 103,162 2.15 0MML Mid Cap Value Fund EQUITY NOBLE ENERGY INC 2,946,168 344,581 0.76 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Mid Cap Value Fund EQUITY JM SMUCKER CO/THE 5,996,066 51,905 1.55 0MML Mid Cap Value Fund EQUITY CONOCOPHILLIPS 4,084,541 124,377 1.05 0MML Mid Cap Value Fund EQUITY CIMAREX ENERGY CO 940,282 38,647 0.24 0MML Mid Cap Value Fund EQUITY NORTHWESTERN CORP 4,717,156 96,981 1.22 0MML Mid Cap Value Fund EQUITY AMERIPRISE FINANCIAL INC 4,990,544 32,383 1.29 0MML Mid Cap Value Fund EQUITY ORKLA ASA 3,707,627 366,361 0.96 0MML Mid Cap Value Fund EQUITY MONDI PLC 4,965,681 235,950 1.28 0MML Mid Cap Value Fund EQUITY BANK OF NEW YORK MELLON CORP 2,973,638 86,594 0.77 0MML Mid Cap Value Fund EQUITY GRAPHIC PACKAGING HOLDING CO 2,548,472 180,871 0.66 0MML Mid Cap Value Fund EQUITY REINSURANCE GROUP OF AMERICA 3,489,380 36,657 0.90 0MML Mid Cap Value Fund EQUITY PIEDMONT OFFICE REALTY TRU A 981,600 72,336 0.25 0MML Mid Cap Value Fund EQUITY CAPITOL FEDERAL FINANCIAL IN 2,750,630 296,884 0.71 0MML Mid Cap Value Fund EQUITY TE CONNECTIVITY LTD 5,122,162 52,406 1.32 0MML Mid Cap Value Fund EQUITY MONDELEZ INTERNATIONAL INC A 2,353,784 40,971 0.61 0MML Mid Cap Value Fund EQUITY IMI PLC 3,900,702 289,499 1.01 0MML Mid Cap Value Fund EQUITY EVERSOURCE ENERGY 1,038,944 12,435 0.27 0MML Mid Cap Value Fund EQUITY WELLTOWER INC 2,044,059 37,104 0.53 0MML Mid Cap Value Fund EQUITY HP INC 4,517,436 237,885 1.16 0MML Mid Cap Value Fund EQUITY HUBBELL INC 7,363,360 53,810 1.90 0MML Mid Cap Value Fund EQUITY CHUBB LTD 9,100,208 78,369 2.35 0MML Mid Cap Value Fund EQUITY MGM GROWTH PROPERTIES LLC A 3,199,261 114,341 0.82 0MML Mid Cap Value Fund EQUITY SPIRE INC 2,892,803 54,376 0.75 0MML Mid Cap Value Fund EQUITY KONINKLIJKE AHOLD DELHAIZE N 6,327,189 213,788 1.63 0MML Mid Cap Value Fund EQUITY JOHNSON CONTROLS INTERNATION 7,127,100 174,470 1.84 0MML Mid Cap Value Fund EQUITY BAKER HUGHES CO 909,687 68,449 0.23 0MML Mid Cap Value Fund EQUITY APTIV PLC 3,198,440 34,887 0.82 0MML Mid Cap Value Fund EQUITY NVENT ELECTRIC PLC 6,128,665 346,448 1.58 0MML Mid Cap Value Fund EQUITY EVERGY INC 2,761,915 54,347 0.71 0MML Mid Cap Value Fund EQUITY MOHAWK INDUSTRIES INC 1,986,737 20,358 0.51 0MML Mid Cap Value Fund EQUITY OPEN TEXT CORP 1,824,008 43,182 0.47 0MML Mid Cap Value Fund CASH POUND STERLING (0) (0) - 0MML Mid Cap Value Fund EQUITY BORGWARNER INC 2,668,372 68,879 0.69 0MML Mid Cap Value Fund EQUITY EDISON INTERNATIONAL 5,270,684 103,672 1.36 0MML Mid Cap Value Fund EQUITY PINNACLE WEST CAPITAL 6,533,860 87,644 1.68 0MML Mid Cap Value Fund EQUITY AMEREN CORPORATION 2,226,656 28,157 0.57 0MML Mid Cap Value Fund EQUITY CUMMINS INC 2,822,365 13,366 0.73 0MML Mid Cap Value Fund EQUITY NORFOLK SOUTHERN CORP 3,618,999 16,912 0.93 0MML Income & Growth Fund EQUITY CORPORATE OFFICE PROPERTIES 629,434 26,536 0.51 0MML Income & Growth Fund EQUITY AON PLC CLASS A 3,336,077 16,171 2.73 0MML Income & Growth Fund EQUITY ENTERGY CORP 3,712,512 37,679 3.03 0MML Income & Growth Fund EQUITY LENNAR CORP A 1,394,523 17,073 1.14 0MML Income & Growth Fund EQUITY VALERO ENERGY CORP 1,189,394 27,456 0.97 0MML Income & Growth Fund EQUITY COGNIZANT TECH SOLUTIONS A 2,289,610 32,982 1.87 0MML Income & Growth Fund EQUITY WABTEC CORP 2,272,357 36,722 1.86 0MML Income & Growth Fund EQUITY GENERAL DYNAMICS CORP 2,923,918 21,122 2.39 0MML Income & Growth Fund EQUITY CVS HEALTH CORP 3,742,914 64,091 3.06 0MML Income & Growth Fund EQUITY ORACLE CORP 2,832,705 47,449 2.31 0MML Income & Growth Fund EQUITY WELLS FARGO + CO 3,604,788 153,330 2.95 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Income & Growth Fund EQUITY LOWE S COS INC 4,977,956 30,013 4.07 0MML Income & Growth Fund EQUITY JOHNSON + JOHNSON 3,819,665 25,656 3.12 0MML Income & Growth Fund EQUITY WHIRLPOOL CORP 2,596,527 14,120 2.12 0MML Income & Growth Fund EQUITY AMERICAN EXPRESS CO 3,556,970 35,481 2.91 0MML Income & Growth Fund EQUITY DEERE + CO 3,496,878 15,778 2.86 0MML Income & Growth Fund EQUITY UNITEDHEALTH GROUP INC 3,709,751 11,899 3.03 0MML Income & Growth Fund EQUITY VERIZON COMMUNICATIONS INC 4,049,960 68,078 3.31 0MML Income & Growth Fund EQUITY EXELON CORP 3,337,695 93,336 2.73 0MML Income & Growth Fund EQUITY NEW YORK COMMUNITY BANCORP 1,763,387 213,227 1.44 0MML Income & Growth Fund EQUITY JPMORGAN CHASE + CO 3,631,016 37,717 2.97 0MML Income & Growth Fund EQUITY US BANCORP 3,627,984 101,199 2.96 0MML Income & Growth Fund EQUITY CENTERPOINT ENERGY INC 2,980,074 154,009 2.43 0MML Income & Growth Fund EQUITY COMCAST CORP CLASS A 3,727,585 80,579 3.05 0MML Income & Growth Fund EQUITY ASSURANT INC 1,873,754 15,446 1.53 0MML Income & Growth Fund EQUITY MOLSON COORS BEVERAGE CO B 1,802,776 53,718 1.47 0MML Income & Growth Fund EQUITY AT+T INC 1,716,216 60,197 1.40 0MML Income & Growth Fund EQUITY STANLEY BLACK + DECKER INC 3,874,958 23,890 3.17 0MML Income & Growth Fund EQUITY PHILLIPS 66 2,614,084 50,426 2.14 0MML Income & Growth Fund EQUITY CHUBB LTD 3,994,644 34,401 3.26 0MML Income & Growth Fund EQUITY MGM GROWTH PROPERTIES LLC A 1,155,854 41,310 0.94 0MML Income & Growth Fund EQUITY COCA COLA EUROPEAN PARTNERS 2,401,485 61,878 1.96 0MML Income & Growth Fund EQUITY LINDE PLC 3,426,453 14,389 2.80 0MML Income & Growth Fund EQUITY CIGNA CORP 3,097,492 18,284 2.53 0MML Income & Growth Fund EQUITY CORTEVA INC 3,653,627 126,818 2.99 0MML Income & Growth Fund CASH EQUIVALENT FIXED INC CLEARING CORP.REPO 1,514,623 1,514,623 1.24 0 10/1/2020MML Income & Growth Fund EQUITY RAYTHEON TECHNOLOGIES CORP 3,435,311 59,703 2.81 0MML Income & Growth Fund EQUITY HESS CORP 2,197,777 53,696 1.80 0MML Income & Growth Fund EQUITY MEDTRONIC PLC 4,011,728 38,604 3.28 0MML Income & Growth Fund EQUITY DUPONT DE NEMOURS INC 2,897,332 52,223 2.37 0MML Income & Growth Fund EQUITY HEALTHPEAK PROPERTIES INC 3,017,234 111,132 2.47 0MML Income & Growth Fund EQUITY NORTHERN TRUST CORP 2,498,237 32,041 2.04 0MML Blue Chip Growth Fund EQUITY JOHNSON CONTROLS INTERNATION 249,185 6,100 0.05 0MML Blue Chip Growth Fund EQUITY SNAP INC A 715,414 27,400 0.14 0MML Blue Chip Growth Fund EQUITY APTIV PLC 94,247 1,028 0.02 0MML Blue Chip Growth Fund EQUITY BOOKING HOLDINGS INC 4,314,335 2,522 0.81 0MML Blue Chip Growth Fund EQUITY SPOTIFY TECHNOLOGY SA 2,425,457 9,999 0.46 0MML Blue Chip Growth Fund EQUITY DOCUSIGN INC 2,681,675 12,459 0.51 0MML Blue Chip Growth Fund EQUITY LINDE PLC 1,619,522 6,801 0.31 0MML Blue Chip Growth Fund EQUITY CIGNA CORP 6,005,246 35,448 1.13 0MML Blue Chip Growth Fund EQUITY ZOOM VIDEO COMMUNICATIONS A 2,162,506 4,600 0.41 0MML Blue Chip Growth Fund EQUITY PPD INC 391,576 10,586 0.07 0MML Blue Chip Growth Fund CASH EQUIVALENT ROWE T PRICE GOV RES FD 1,075 1,075 0.00 0.01 9/19/2034MML Blue Chip Growth Fund CASH SOUTH KOREAN WON 0 96 - 0MML Blue Chip Growth Fund EQUITY INTUIT INC 10,209,394 31,297 1.93 0MML Blue Chip Growth Fund EQUITY STRYKER CORP 6,549,486 31,432 1.24 0MML Blue Chip Growth Fund EQUITY SEMPRA ENERGY 252,344 2,132 0.05 0MML Blue Chip Growth Fund EQUITY AMAZON.COM INC 63,160,375 20,059 11.93 0MML Blue Chip Growth Fund EQUITY CINTAS CORP 1,883,818 5,660 0.36 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Blue Chip Growth Fund EQUITY HUMANA INC 1,324,448 3,200 0.25 0MML Blue Chip Growth Fund EQUITY NORFOLK SOUTHERN CORP 754,529 3,526 0.14 0MML Blue Chip Growth Fund EQUITY NORTHROP GRUMMAN CORP 55,526 176 0.01 0MML Blue Chip Growth Fund EQUITY PIONEER NATURAL RESOURCES CO 89,516 1,041 0.02 0MML Blue Chip Growth Fund EQUITY THERMO FISHER SCIENTIFIC INC 6,358,771 14,402 1.20 0MML Blue Chip Growth Fund EQUITY UNION PACIFIC CORP 1,774,586 9,014 0.34 0MML Blue Chip Growth Fund EQUITY APPLIED MATERIALS INC 854,950 14,381 0.16 0MML Blue Chip Growth Fund EQUITY COSTAR GROUP INC 3,606,168 4,250 0.68 0MML Blue Chip Growth Fund EQUITY HONEYWELL INTERNATIONAL INC 29,959 182 0.01 0MML Blue Chip Growth Fund EQUITY MORGAN STANLEY 1,466,552 30,332 0.28 0MML Blue Chip Growth Fund EQUITY LOWE S COS INC 364,892 2,200 0.07 0MML Blue Chip Growth Fund EQUITY MARSH + MCLENNAN COS 966,577 8,427 0.18 0MML Blue Chip Growth Fund EQUITY MCDONALD S CORP 177,348 808 0.03 0MML Blue Chip Growth Fund EQUITY STATE STREET CORP 154,495 2,604 0.03 0MML Blue Chip Growth Fund EQUITY MARRIOTT INTERNATIONAL CL A 330,418 3,569 0.06 0MML Blue Chip Growth Fund EQUITY SHERWIN WILLIAMS CO/THE 523,948 752 0.10 0MML Blue Chip Growth Fund EQUITY AIR PRODUCTS + CHEMICALS INC 76,550 257 0.01 0MML Blue Chip Growth Fund EQUITY ROSS STORES INC 3,012,090 32,277 0.57 0MML Blue Chip Growth Fund EQUITY ADVANCED MICRO DEVICES 4,313,986 52,616 0.81 0MML Blue Chip Growth Fund EQUITY PPG INDUSTRIES INC 195,328 1,600 0.04 0MML Blue Chip Growth Fund EQUITY TJX COMPANIES INC 154,206 2,771 0.03 0MML Blue Chip Growth Fund EQUITY ELECTRONIC ARTS INC 135,496 1,039 0.03 0MML Blue Chip Growth Fund EQUITY PARKER HANNIFIN CORP 40,468 200 0.01 0MML Blue Chip Growth Fund EQUITY AGILENT TECHNOLOGIES INC 29,071 288 0.01 0MML Blue Chip Growth Fund EQUITY MARVELL TECHNOLOGY GROUP LTD 3,759,431 94,696 0.71 0MML Blue Chip Growth Fund EQUITY KANSAS CITY SOUTHERN 518,259 2,866 0.10 0MML Blue Chip Growth Fund EQUITY GLOBAL PAYMENTS INC 9,332,007 52,551 1.76 0MML Blue Chip Growth Fund EQUITY CANADIAN PACIFIC RAILWAY LTD 838,400 2,754 0.16 0MML Blue Chip Growth Fund EQUITY YUM BRANDS INC 1,007,039 11,030 0.19 0MML Blue Chip Growth Fund EQUITY DOMINO S PIZZA INC 127,584 300 0.02 0MML Blue Chip Growth Fund EQUITY CHIPOTLE MEXICAN GRILL INC 3,063,258 2,463 0.58 0MML Blue Chip Growth Fund EQUITY MASTERCARD INC A 14,410,776 42,614 2.72 0MML Blue Chip Growth Fund EQUITY MSCI INC 731,399 2,050 0.14 0MML Blue Chip Growth Fund EQUITY DOLLAR TREE INC 42,108 461 0.01 0MML Blue Chip Growth Fund EQUITY DOLLAR GENERAL CORP 6,673,462 31,836 1.26 0MML Blue Chip Growth Fund EQUITY UNITED AIRLINES HOLDINGS INC 8,305 239 0.00 0MML Blue Chip Growth Fund EQUITY HCA HEALTHCARE INC 722,770 5,797 0.14 0MML Blue Chip Growth Fund EQUITY SPLUNK INC 4,446,829 23,637 0.84 0MML Blue Chip Growth Fund EQUITY SERVICENOW INC 13,014,975 26,835 2.46 0MML Blue Chip Growth Fund EQUITY VEEVA SYSTEMS INC CLASS A 1,738,879 6,184 0.33 0MML Blue Chip Growth Fund EQUITY WIX.COM LTD 2,553,342 10,019 0.48 0MML Blue Chip Growth Fund EQUITY PAYCOM SOFTWARE INC 984,642 3,163 0.19 0MML Blue Chip Growth Fund EQUITY TENCENT HOLDINGS LTD 13,844,762 207,900 2.61 0MML Blue Chip Growth Fund EQUITY ALIBABA GROUP HOLDING SP ADR 26,103,660 88,794 4.93 0MML Blue Chip Growth Fund EQUITY ETSY INC 729,780 6,000 0.14 0MML Blue Chip Growth Fund EQUITY SHOPIFY INC CLASS A 686,413 671 0.13 0MML Blue Chip Growth Fund EQUITY PAYPAL HOLDINGS INC 13,934,356 70,722 2.63 0MML Blue Chip Growth Fund EQUITY ALPHABET INC CL A 5,726,099 3,907 1.08 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Blue Chip Growth Fund EQUITY ATLASSIAN CORP PLC CLASS A 1,136,551 6,252 0.21 0MML Blue Chip Growth Fund EQUITY CHUBB LTD 101,953 878 0.02 0MML Blue Chip Growth Fund EQUITY IHS MARKIT LTD 108,108 1,377 0.02 0MML Blue Chip Growth Fund EQUITY COUPA SOFTWARE INC 236,943 864 0.04 0MML Blue Chip Growth Fund EQUITY HILTON WORLDWIDE HOLDINGS IN 102,384 1,200 0.02 0MML Blue Chip Growth Fund EQUITY CARVANA CO 178,448 800 0.03 0MML Blue Chip Growth Fund EQUITY SEA LTD ADR 4,944,684 32,100 0.93 0MML Blue Chip Growth Fund EQUITY ANT INTERNATIONAL CO. LIMITED 1,248,903 138,153 0.24 0MML Blue Chip Growth Fund EQUITY L3HARRIS TECHNOLOGIES INC 33,798 199 0.01 0MML Blue Chip Growth Fund EQUITY TRIP.COM GROUP LTD ADR 66,795 2,145 0.01 0MML Blue Chip Growth Fund EQUITY SNOWFLAKE INC CLASS A 368,217 1,467 0.07 0MML Blue Chip Growth Fund EQUITY GOODRX HOLDINGS INC CLASS A 154,624 2,781 0.03 0MML Blue Chip Growth Fund CASH EQUIVALENT FIXED INC CLEARING CORP.REPO 1,638,638 1,638,638 0.31 0 10/1/2020MML Blue Chip Growth Fund EQUITY SEAGEN INC 339,131 1,733 0.06 0MML Blue Chip Growth Fund EQUITY MATCH GROUP INC 4,145,502 37,465 0.78 0MML Blue Chip Growth Fund EQUITY ROPER TECHNOLOGIES INC 2,859,411 7,237 0.54 0MML Blue Chip Growth Fund EQUITY LAM RESEARCH CORP 684,400 2,063 0.13 0MML Blue Chip Growth Fund EQUITY INCYTE CORP 2,169,823 24,179 0.41 0MML Blue Chip Growth Fund EQUITY VERTEX PHARMACEUTICALS INC 8,237,889 30,273 1.56 0MML Blue Chip Growth Fund EQUITY NVIDIA CORP 8,693,617 16,063 1.64 0MML Blue Chip Growth Fund EQUITY BECTON DICKINSON AND CO 115,409 496 0.02 0MML Blue Chip Growth Fund EQUITY APPLE INC 24,884,326 214,872 4.70 0MML Blue Chip Growth Fund EQUITY MICROSOFT CORP 28,278,027 134,446 5.34 0MML Blue Chip Growth Fund EQUITY EDWARDS LIFESCIENCES CORP 55,874 700 0.01 0MML Blue Chip Growth Fund EQUITY TEXAS INSTRUMENTS INC 907,288 6,354 0.17 0MML Blue Chip Growth Fund EQUITY SYNOPSYS INC 3,574,536 16,705 0.67 0MML Blue Chip Growth Fund EQUITY NIKE INC CL B 2,529,003 20,145 0.48 0MML Blue Chip Growth Fund EQUITY GOLDMAN SACHS GROUP INC 2,530,212 12,590 0.48 0MML Blue Chip Growth Fund EQUITY EQUIFAX INC 1,874,641 11,948 0.35 0MML Blue Chip Growth Fund EQUITY FISERV INC 5,994,831 58,174 1.13 0MML Blue Chip Growth Fund EQUITY KLA CORP 54,247 280 0.01 0MML Blue Chip Growth Fund EQUITY MAXIM INTEGRATED PRODUCTS 1,056,744 15,630 0.20 0MML Blue Chip Growth Fund EQUITY QUALCOMM INC 2,824,673 24,003 0.53 0MML Blue Chip Growth Fund EQUITY SCHWAB (CHARLES) CORP 458,346 12,651 0.09 0MML Blue Chip Growth Fund EQUITY UNITEDHEALTH GROUP INC 9,758,089 31,299 1.84 0MML Blue Chip Growth Fund EQUITY DANAHER CORP 7,060,240 32,788 1.33 0MML Blue Chip Growth Fund EQUITY ALIGN TECHNOLOGY INC 64,817 198 0.01 0MML Blue Chip Growth Fund EQUITY EXACT SCIENCES CORP 856,176 8,398 0.16 0MML Blue Chip Growth Fund EQUITY CENTENE CORP 2,802,757 48,050 0.53 0MML Blue Chip Growth Fund EQUITY NETFLIX INC 12,402,744 24,804 2.34 0MML Blue Chip Growth Fund EQUITY INTUITIVE SURGICAL INC 7,570,082 10,669 1.43 0MML Blue Chip Growth Fund EQUITY SALESFORCE.COM INC 12,955,546 51,550 2.45 0MML Blue Chip Growth Fund EQUITY FIDELITY NATIONAL INFO SERV 8,047,529 54,667 1.52 0MML Blue Chip Growth Fund EQUITY LULULEMON ATHLETICA INC 3,400,745 10,325 0.64 0MML Blue Chip Growth Fund EQUITY VISA INC CLASS A SHARES 16,394,141 81,983 3.10 0MML Blue Chip Growth Fund EQUITY TESLA INC 42,901 100 0.01 0MML Blue Chip Growth Fund EQUITY TE CONNECTIVITY LTD 615,762 6,300 0.12 0MML Blue Chip Growth Fund EQUITY FACEBOOK INC CLASS A 35,039,601 133,790 6.62 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Blue Chip Growth Fund EQUITY WORKDAY INC CLASS A 4,337,451 20,162 0.82 0MML Blue Chip Growth Fund EQUITY ABBVIE INC 41,693 476 0.01 0MML Blue Chip Growth Fund EQUITY ZOETIS INC 1,709,595 10,338 0.32 0MML Blue Chip Growth Fund EQUITY INTERCONTINENTAL EXCHANGE IN 1,771,986 17,711 0.33 0MML Blue Chip Growth Fund EQUITY ANTHEM INC 3,757,574 13,990 0.71 0MML Blue Chip Growth Fund EQUITY ALPHABET INC CL C 25,679,790 17,474 4.85 0MML Blue Chip Growth Fund EQUITY WILLIS TOWERS WATSON PLC 2,351,104 11,259 0.44 0MML Blue Chip Growth Fund EQUITY S+P GLOBAL INC 3,894,480 10,800 0.74 0MML Blue Chip Growth Fund EQUITY CHARTER COMMUNICATIONS INC A 749,208 1,200 0.14 0MML Blue Chip Growth Fund EQUITY FORTIVE CORP 1,118,763 14,680 0.21 0MML Blue Chip Growth Fund EQUITY TWILIO INC A 81,540 330 0.02 0MML Foreign Fund EQUITY NINTENDO CO LTD 4,832,083 8,500 1.79 0MML Foreign Fund EQUITY OLYMPUS CORP 4,022,747 193,800 1.49 0MML Foreign Fund EQUITY ORIX CORP 3,892,932 312,700 1.44 0MML Foreign Fund EQUITY SONY CORP 7,564,358 98,900 2.80 0MML Foreign Fund EQUITY ASTELLAS PHARMA INC 3,854,124 258,900 1.43 0MML Foreign Fund EQUITY TOYOTA INDUSTRIES CORP 4,470,535 70,700 1.65 0MML Foreign Fund EQUITY CHINA MOBILE LTD 2,079,668 323,500 0.77 0MML Foreign Fund EQUITY SAMSUNG ELECTRONICS CO LTD 4,892,449 97,100 1.81 0MML Foreign Fund CASH US DOLLAR (398,396) (398,396) 0.15 0MML Foreign Fund EQUITY PERSIMMON PLC 2,359,873 74,300 0.87 0MML Foreign Fund CASH EURO CURRENCY (1) (1) - 0MML Foreign Fund EQUITY CHECK POINT SOFTWARE TECH 1,817,134 15,100 0.67 0MML Foreign Fund EQUITY KONINKLIJKE PHILIPS NV 4,691,190 99,579 1.74 0MML Foreign Fund EQUITY SMITH + NEPHEW PLC 1,993,456 102,300 0.74 0MML Foreign Fund EQUITY DEUTSCHE POST AG REG 2,102,212 46,100 0.78 0MML Foreign Fund EQUITY VIVENDI 2,717,538 97,500 1.01 0MML Foreign Fund EQUITY DEUTSCHE BOERSE AG 2,616,725 14,900 0.97 0MML Foreign Fund EQUITY GROUPE BRUXELLES LAMBERT SA 2,424,526 26,900 0.90 0MML Foreign Fund EQUITY ROCHE HOLDING AG GENUSSCHEIN 2,463,316 7,200 0.91 0MML Foreign Fund EQUITY NOVARTIS AG REG 5,457,400 62,800 2.02 0MML Foreign Fund EQUITY ABB LTD REG 3,766,266 148,600 1.39 0MML Foreign Fund EQUITY NESTLE SA REG 5,967,546 50,300 2.21 0MML Foreign Fund EQUITY BHP GROUP PLC ADR 861,732 20,200 0.32 0MML Foreign Fund EQUITY SUMITOMO MITSUI FINANCIAL GR 4,421,574 158,900 1.64 0MML Foreign Fund EQUITY CHALLENGER LTD 1,114,526 404,800 0.41 0MML Foreign Fund EQUITY SIEMENS GAMESA RENEWABLE ENE 2,652,244 98,400 0.98 0MML Foreign Fund EQUITY SEGA SAMMY HOLDINGS INC 2,081,108 171,100 0.77 0MML Foreign Fund EQUITY IG GROUP HOLDINGS PLC 517,042 50,700 0.19 0MML Foreign Fund EQUITY BUNZL PLC 1,722,869 53,400 0.64 0MML Foreign Fund EQUITY ENGIE 4,589,704 343,400 1.70 0MML Foreign Fund EQUITY CK HUTCHISON HOLDINGS LTD 3,040,537 501,500 1.12 0MML Foreign Fund EQUITY RYANAIR HOLDINGS PLC SP ADR 907,536 11,100 0.34 0MML Foreign Fund EQUITY EXOR NV 897,887 16,500 0.33 0MML Foreign Fund EQUITY UNICREDIT SPA 2,045,180 248,000 0.76 0MML Foreign Fund EQUITY ARCELORMITTAL 2,565,838 192,400 0.95 0MML Foreign Fund EQUITY CK ASSET HOLDINGS LTD 1,912,600 392,000 0.71 0MML Foreign Fund EQUITY AIB GROUP PLC 689,133 671,800 0.25 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Foreign Fund EQUITY LINDE PLC 1,976,479 8,300 0.73 0MML Foreign Fund EQUITY DRILLING CO OF 1972/THE 338,611 15,600 0.13 0MML Foreign Fund EQUITY SIEMENS ENERGY AG 547,417 20,300 0.20 0MML Foreign Fund EQUITY ALCON INC 2,719,477 47,900 1.01 0MML Foreign Fund EQUITY SAP SE 5,824,055 37,400 2.15 0MML Foreign Fund EQUITY BAYER AG REG 2,443,776 39,100 0.90 0MML Foreign Fund EQUITY HEIDELBERGCEMENT AG 4,122,147 67,200 1.52 0MML Foreign Fund EQUITY ALLIANZ SE REG 2,723,824 14,200 1.01 0MML Foreign Fund EQUITY SIEMENS AG REG 5,133,695 40,600 1.90 0MML Foreign Fund EQUITY DBS GROUP HOLDINGS LTD 2,899,011 197,100 1.07 0MML Foreign Fund EQUITY DAIWA SECURITIES GROUP INC 2,218,646 528,600 0.82 0MML Foreign Fund EQUITY DENKA CO LTD 2,014,838 66,200 0.75 0MML Foreign Fund EQUITY FANUC CORP 3,376,334 17,600 1.25 0MML Foreign Fund EQUITY FUJITSU LTD 2,916,618 21,300 1.08 0MML Foreign Fund EQUITY HITACHI LTD 3,987,185 118,000 1.47 0MML Foreign Fund EQUITY KIRIN HOLDINGS CO LTD 1,883,836 100,300 0.70 0MML Foreign Fund EQUITY KYOCERA CORP 2,645,488 46,300 0.98 0MML Foreign Fund EQUITY AIRBUS SE 442,767 6,100 0.16 0MML Foreign Fund EQUITY ASHTEAD GROUP PLC 2,597,608 72,500 0.96 0MML Foreign Fund EQUITY IMPERIAL BRANDS PLC 2,067,628 117,300 0.76 0MML Foreign Fund CASH SOUTH KOREAN WON 1 966 - 0MML Foreign Fund CASH POUND STERLING 31,558 24,457 0.01 0MML Foreign Fund CASH SWISS FRANC 0 0 - 0MML Foreign Fund EQUITY INVESTOR AB B SHS 2,673,524 41,000 0.99 0MML Foreign Fund EQUITY BARRATT DEVELOPMENTS PLC 588,199 96,200 0.22 0MML Foreign Fund EQUITY BRITISH LAND CO PLC 1,994,689 458,800 0.74 0MML Foreign Fund EQUITY AVIVA PLC 3,247,687 883,200 1.20 0MML Foreign Fund EQUITY TESCO PLC 4,310,595 1,572,300 1.59 0MML Foreign Fund EQUITY AP MOLLER MAERSK A/S B 2,853,739 1,800 1.06 0MML Foreign Fund EQUITY KBC GROUP NV 2,408,514 48,100 0.89 0MML Foreign Fund EQUITY MEDIOBANCA SPA 1,957,325 249,600 0.72 0MML Foreign Fund EQUITY DCC PLC 3,113,426 40,400 1.15 0MML Foreign Fund EQUITY DASSAULT AVIATION SA 763,936 900 0.28 0MML Foreign Fund EQUITY FRESENIUS SE + CO KGAA 4,451,815 97,800 1.65 0MML Foreign Fund EQUITY SQUARE ENIX HOLDINGS CO LTD 2,446,693 36,800 0.90 0MML Foreign Fund EQUITY RAKUTEN INC 4,180,588 387,000 1.55 0MML Foreign Fund EQUITY VEOLIA ENVIRONNEMENT 3,551,907 164,700 1.31 0MML Foreign Fund EQUITY LENDLEASE GROUP 1,576,223 199,000 0.58 0MML Foreign Fund EQUITY SANOFI 5,444,609 54,300 2.01 0MML Foreign Fund EQUITY SANTOS LTD 926,817 264,100 0.34 0MML Foreign Fund EQUITY TOSHIBA CORP 3,141,044 123,400 1.16 0MML Foreign Fund EQUITY INFINEON TECHNOLOGIES AG 4,098,749 144,900 1.52 0MML Foreign Fund EQUITY HEINEKEN HOLDING NV 3,502,114 45,000 1.30 0MML Foreign Fund EQUITY UBISOFT ENTERTAINMENT 2,205,009 24,400 0.82 0MML Foreign Fund EQUITY GVC HOLDINGS PLC 2,606,680 207,100 0.96 0MML Foreign Fund EQUITY UBS GROUP AG REG 4,343,782 389,100 1.61 0MML Foreign Fund EQUITY BAIDU INC SPON ADR 734,222 5,800 0.27 0MML Foreign Fund EQUITY SEVEN + I HOLDINGS CO LTD 4,479,295 144,900 1.66 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Foreign Fund EQUITY MOWI ASA 2,494,137 140,600 0.92 0MML Foreign Fund EQUITY SAVILLS PLC 530,296 52,700 0.20 0MML Foreign Fund EQUITY TOTAL SE 2,180,148 63,500 0.81 0MML Foreign Fund EQUITY ARKEMA 2,694,655 25,400 1.00 0MML Foreign Fund EQUITY UNILEVER PLC 6,870,395 111,500 2.54 0MML Foreign Fund EQUITY SMURFIT KAPPA GROUP PLC 3,731,660 95,100 1.38 0MML Foreign Fund EQUITY REXEL SA 1,389,965 110,800 0.51 0MML Foreign Fund EQUITY VOLVO AB B SHS 1,957,113 101,898 0.72 0MML Foreign Fund EQUITY PRYSMIAN SPA 2,137,176 73,500 0.79 0MML Foreign Fund EQUITY MATSUMOTOKIYOSHI HOLDINGS CO 1,160,113 31,800 0.43 0MML Foreign Fund EQUITY MACQUARIE GROUP LTD 2,894,741 33,700 1.07 0MML Foreign Fund EQUITY ENEOS HOLDINGS INC 1,300,180 364,100 0.48 0MML Foreign Fund EQUITY INCHCAPE PLC 1,809,846 319,700 0.67 0MML Foreign Fund EQUITY NXP SEMICONDUCTORS NV 2,633,491 21,100 0.97 0MML Foreign Fund EQUITY GLENCORE PLC 746,438 360,300 0.28 0MML Foreign Fund EQUITY JAPAN AIRLINES CO LTD 1,903,525 101,400 0.70 0MML Foreign Fund EQUITY TALANX AG 922,850 28,600 0.34 0MML Foreign Fund EQUITY ASML HOLDING NV 3,134,244 8,500 1.16 0MML Foreign Fund EQUITY LIBERTY GLOBAL PLC C 102,675 5,000 0.04 0MML Foreign Fund EQUITY INFORMA PLC 856,734 176,700 0.32 0MML Global Fund EQUITY WILLIS TOWERS WATSON PLC 1,302,410 6,237 0.32 0MML Global Fund EQUITY COMPASS GROUP PLC 2,542,665 169,385 0.62 0MML Global Fund EQUITY ESSITY AKTIEBOLAG B 8,938,147 264,514 2.16 0MML Global Fund EQUITY LINDE PLC 7,666,149 32,390 1.86 0MML Global Fund EQUITY APTIV PLC 1,847,352 20,150 0.45 0MML Global Fund EQUITY LINDE PLC 2,035,535 8,548 0.49 0MML Global Fund EQUITY AKZO NOBEL N.V. 5,505,708 54,364 1.33 0MML Global Fund EQUITY CARRIER GLOBAL CORP 908,443 29,746 0.22 0MML Global Fund EQUITY OTIS WORLDWIDE CORP 2,149,620 34,438 0.52 0MML Global Fund EQUITY AON PLC CLASS A 5,039,703 24,429 1.22 0MML Global Fund CASH EQUIVALENT FIXED INC CLEARING CORP.REPO 2,142,165 2,142,165 0.52 0 10/1/2020MML Global Fund EQUITY MTU AERO ENGINES AG 1,710,089 10,282 0.41 0MML Global Fund EQUITY BURBERRY GROUP PLC 2,244,785 112,115 0.54 0MML Global Fund EQUITY DEUTSCHE WOHNEN SE 1,683,634 33,648 0.41 0MML Global Fund EQUITY WHITBREAD PLC 1,557,150 57,090 0.38 0MML Global Fund EQUITY DANONE 8,173,557 126,367 1.98 0MML Global Fund EQUITY AIR LIQUIDE SA 4,440,593 27,984 1.07 0MML Global Fund EQUITY BANK OF NEW YORK MELLON CORP 3,837,529 111,751 0.93 0MML Global Fund EQUITY RECKITT BENCKISER GROUP PLC 8,180,552 83,909 1.98 0MML Global Fund EQUITY VISA INC CLASS A SHARES 13,413,188 67,076 3.25 0MML Global Fund EQUITY ACCENTURE PLC CL A 10,871,023 48,104 2.63 0MML Global Fund EQUITY JULIUS BAER GROUP LTD 1,488,726 34,921 0.36 0MML Global Fund EQUITY BRENNTAG AG 1,931,499 30,355 0.47 0MML Global Fund EQUITY ROLLS ROYCE HOLDINGS PLC 712,773 429,567 0.17 0MML Global Fund EQUITY WPP PLC 2,320,605 297,142 0.56 0MML Global Fund EQUITY CIE FINANCIERE RICHEMO A REG 3,943,025 58,868 0.95 0MML Global Fund EQUITY LIBERTY BROADBAND C 1,288,830 9,021 0.31 0MML Global Fund EQUITY ERSTE GROUP BANK AG 849,164 40,604 0.21 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Global Fund CASH SOUTH KOREAN WON 2 2,511 0.00 0MML Global Fund CASH THAILAND BAHT 0 1 - 0MML Global Fund EQUITY HERMES INTERNATIONAL 1,123,165 1,303 0.27 0MML Global Fund EQUITY STRYKER CORP 7,632,801 36,631 1.85 0MML Global Fund EQUITY UBS GROUP AG REG 3,069,874 274,988 0.74 0MML Global Fund EQUITY MEDTRONIC PLC 12,814,895 123,315 3.10 0MML Global Fund EQUITY AENA SME SA 3,851,689 27,652 0.93 0MML Global Fund EQUITY LEGRAND SA 4,731,340 59,265 1.14 0MML Global Fund EQUITY LVMH MOET HENNESSY LOUIS VUI 9,984,308 21,357 2.42 0MML Global Fund EQUITY KANSAS CITY SOUTHERN 8,125,054 44,932 1.97 0MML Global Fund EQUITY DEUTSCHE BOERSE AG 2,016,634 11,483 0.49 0MML Global Fund EQUITY ROCHE HOLDING AG GENUSSCHEIN 8,788,222 25,687 2.13 0MML Global Fund EQUITY ADECCO GROUP AG REG 1,735,853 32,848 0.42 0MML Global Fund EQUITY NESTLE SA REG 12,136,898 102,301 2.94 0MML Global Fund EQUITY ZIMMER BIOMET HOLDINGS INC 6,971,457 51,208 1.69 0MML Global Fund EQUITY ESSILORLUXOTTICA 1,549,690 11,396 0.38 0MML Global Fund EQUITY SONOVA HOLDING AG REG 1,217,980 4,803 0.29 0MML Global Fund EQUITY 3M CO 6,055,925 37,807 1.47 0MML Global Fund EQUITY WYNN RESORTS LTD 137,588 1,916 0.03 0MML Global Fund EQUITY COMCAST CORP CLASS A 14,483,775 313,095 3.50 0MML Global Fund EQUITY HEINEKEN NV 6,299,382 70,886 1.52 0MML Global Fund EQUITY TD AMERITRADE HOLDING CORP 2,944,119 75,201 0.71 0MML Global Fund EQUITY FIDELITY NATIONAL INFO SERV 4,840,118 32,879 1.17 0MML Global Fund EQUITY CANADIAN NATL RAILWAY CO 8,923,797 83,823 2.16 0MML Global Fund EQUITY KELLOGG CO 272,957 4,226 0.07 0MML Global Fund EQUITY EBAY INC 4,487,581 86,134 1.09 0MML Global Fund EQUITY THERMO FISHER SCIENTIFIC INC 15,506,624 35,121 3.75 0MML Global Fund EQUITY UNION PACIFIC CORP 3,809,631 19,351 0.92 0MML Global Fund EQUITY COGNIZANT TECH SOLUTIONS A 4,299,875 61,940 1.04 0MML Global Fund EQUITY COOPER COS INC/THE 4,346,825 12,894 1.05 0MML Global Fund EQUITY DIAGEO PLC 8,963,144 261,635 2.17 0MML Global Fund EQUITY CARLSBERG AS B 2,237,750 16,619 0.54 0MML Global Fund EQUITY AMPHENOL CORP CL A 2,354,439 21,746 0.57 0MML Global Fund EQUITY PERNOD RICARD SA 5,897,652 36,955 1.43 0MML Global Fund EQUITY MERCK KGAA 4,861,682 33,294 1.18 0MML Global Fund EQUITY SCHNEIDER ELECTRIC SE 12,112,133 97,588 2.93 0MML Global Fund EQUITY BAYER AG REG 6,003,689 96,058 1.45 0MML Global Fund EQUITY HOYA CORP 2,457,288 21,800 0.59 0MML Global Fund EQUITY KUBOTA CORP 6,185,963 345,800 1.50 0MML Global Fund EQUITY OLYMPUS CORP 2,972,432 143,200 0.72 0MML Global Fund EQUITY SAMSUNG ELECTRONICS CO LTD 3,782,201 75,065 0.92 0MML Global Fund EQUITY KASIKORNBANK PCL FOREIGN 295,557 121,700 0.07 0MML Global Fund EQUITY HONEYWELL INTERNATIONAL INC 9,239,889 56,132 2.24 0MML Global Fund EQUITY CISCO SYSTEMS INC 1,990,849 50,542 0.48 0MML Global Fund EQUITY WALT DISNEY CO/THE 7,369,856 59,396 1.78 0MML Global Fund EQUITY OMNICOM GROUP 1,155,033 23,334 0.28 0MML Global Fund EQUITY ORACLE CORP 6,314,827 105,776 1.53 0MML Global Fund EQUITY WATERS CORP 3,813,803 19,490 0.92 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Global Fund EQUITY ABBOTT LABORATORIES 6,830,497 62,763 1.65 0MML Global Fund EQUITY JOHNSON + JOHNSON 834,770 5,607 0.20 0MML Global Fund EQUITY STATE STREET CORP 2,792,010 47,059 0.68 0MML Global Fund EQUITY AMERICAN EXPRESS CO 4,186,440 41,760 1.01 0MML Global Fund EQUITY MARRIOTT INTERNATIONAL CL A 2,081,939 22,488 0.50 0MML Global Fund EQUITY UNITED PARCEL SERVICE CL B 5,158,865 30,960 1.25 0MML Global Fund EQUITY GRUPO FINANCIERO BANORTE O 633,790 183,454 0.15 0MML Global Fund EQUITY COLGATE PALMOLIVE CO 4,778,825 61,942 1.16 0MML Global Fund EQUITY GOLDMAN SACHS GROUP INC 5,283,903 26,292 1.28 0MML Global Fund EQUITY CHECK POINT SOFTWARE TECH 5,209,398 43,289 1.26 0MML Global Fund EQUITY EQUIFAX INC 4,151,260 26,458 1.00 0MML Global Fund EQUITY PPG INDUSTRIES INC 4,661,503 38,184 1.13 0MML Global Fund EQUITY SCHWAB (CHARLES) CORP 918,865 25,362 0.22 0MML Global Fund EQUITY MICROCHIP TECHNOLOGY INC 1,826,456 17,774 0.44 0MML Global Fund EQUITY PAYPAL HOLDINGS INC 5,011,655 25,436 1.21 0MML Mid Cap Growth Fund EQUITY PPD INC 1,257,660 34,000 0.32 0MML Mid Cap Growth Fund EQUITY INGERSOLL RAND INC 5,802,800 163,000 1.48 0MML Mid Cap Growth Fund EQUITY CHURCHILL CAPITAL CORP III A 1,199,250 117,000 0.30 0MML Mid Cap Growth Fund EQUITY DRAFTKINGS INC CL A 1,353,320 23,000 0.34 0MML Mid Cap Growth Fund EQUITY SELECTQUOTE INC 405,000 20,000 0.10 0MML Mid Cap Growth Fund EQUITY ROYALTY PHARMA PLC CL A 967,610 23,000 0.25 0MML Mid Cap Growth Fund EQUITY DOORDASH INC, PP 142,309 620 0.04 0MML Mid Cap Growth Fund EQUITY MATCH GROUP INC 6,417,700 58,000 1.63 0MML Mid Cap Growth Fund EQUITY IAC/INTERACTIVECORP 2,036,260 17,000 0.52 0MML Mid Cap Growth Fund EQUITY DUN + BRADSTREET HOLDINGS IN 1,206,020 47,000 0.31 0MML Mid Cap Growth Fund EQUITY RIVIAN AUTO SER E CVT 379,954 24,529 0.10 0MML Mid Cap Growth Fund EQUITY GOHEALTH INC CLASS A 416,800 32,000 0.11 0MML Mid Cap Growth Fund EQUITY PROCORE TECH SER B CVT 30,150 670 0.01 0MML Mid Cap Growth Fund EQUITY PROCORE TECHNOLOGIES PP 45,225 1,005 0.01 0MML Mid Cap Growth Fund EQUITY PERSHING SQUARE TONTINE A 35,728 4,983 0.01 0MML Mid Cap Growth Fund EQUITY PERSHING SQUARE TONTINE A 1,021,050 45,000 0.26 0MML Mid Cap Growth Fund EQUITY SNOWFLAKE INC CLASS A 251,000 1,000 0.06 0MML Mid Cap Growth Fund EQUITY GOODRX HOLDINGS INC CLASS A 116,982 2,104 0.03 0MML Mid Cap Growth Fund EQUITY BENTLEY SYSTEMS INC CLASS B 170,376 5,426 0.04 0MML Mid Cap Growth Fund CASH EQUIVALENT FIXED INC CLEARING CORP.REPO 3,312,458 3,312,458 0.84 0 10/1/2020MML Mid Cap Growth Fund EQUITY TERMINIX GLOBAL HOLDINGS INC 3,549,320 89,000 0.90 0MML Mid Cap Growth Fund EQUITY SEAGEN INC 4,500,870 23,000 1.14 0MML Mid Cap Growth Fund EQUITY DENTSPLY SIRONA INC 874,600 20,000 0.22 0MML Mid Cap Growth Fund EQUITY CITRIX SYSTEMS INC 826,260 6,000 0.21 0MML Mid Cap Growth Fund EQUITY PACKAGING CORP OF AMERICA 1,199,550 11,000 0.31 0MML Mid Cap Growth Fund EQUITY TELEFLEX INC 8,510,500 25,000 2.16 0MML Mid Cap Growth Fund EQUITY WEST PHARMACEUTICAL SERVICES 2,749,000 10,000 0.70 0MML Mid Cap Growth Fund EQUITY BALL CORP 9,143,200 110,000 2.33 0MML Mid Cap Growth Fund EQUITY XILINX INC 4,273,840 41,000 1.09 0MML Mid Cap Growth Fund EQUITY SKYWORKS SOLUTIONS INC 3,346,500 23,000 0.85 0MML Mid Cap Growth Fund EQUITY MOLINA HEALTHCARE INC 732,160 4,000 0.19 0MML Mid Cap Growth Fund EQUITY VERISK ANALYTICS INC 4,447,440 24,000 1.13 0MML Mid Cap Growth Fund EQUITY ZYNGA INC CL A 1,887,840 207,000 0.48 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Mid Cap Growth Fund EQUITY CATALENT INC 7,966,380 93,000 2.03 0MML Mid Cap Growth Fund EQUITY ICU MEDICAL INC 1,644,840 9,000 0.42 0MML Mid Cap Growth Fund EQUITY NEUROCRINE BIOSCIENCES INC 1,634,720 17,000 0.42 0MML Mid Cap Growth Fund EQUITY QUIDEL CORP 1,316,280 6,000 0.33 0MML Mid Cap Growth Fund EQUITY VAIL RESORTS INC 3,209,550 15,000 0.82 0MML Mid Cap Growth Fund EQUITY ATMOS ENERGY CORP 1,338,260 14,000 0.34 0MML Mid Cap Growth Fund EQUITY COOPER COS INC/THE 6,405,280 19,000 1.63 0MML Mid Cap Growth Fund EQUITY COSTAR GROUP INC 4,523,407 5,331 1.15 0MML Mid Cap Growth Fund EQUITY IDEXX LABORATORIES INC 1,572,440 4,000 0.40 0MML Mid Cap Growth Fund EQUITY INCYTE CORP 3,140,900 35,000 0.80 0MML Mid Cap Growth Fund EQUITY AMPHENOL CORP CL A 1,624,050 15,000 0.41 0MML Mid Cap Growth Fund EQUITY COGNEX CORP 911,400 14,000 0.23 0MML Mid Cap Growth Fund EQUITY WEBSTER FINANCIAL CORP 1,241,270 47,000 0.32 0MML Mid Cap Growth Fund CASH US DOLLAR 2,240 2,240 0.00 0MML Mid Cap Growth Fund EQUITY TEXTRON INC 5,016,510 139,000 1.28 0MML Mid Cap Growth Fund EQUITY MARRIOTT INTERNATIONAL CL A 1,573,860 17,000 0.40 0MML Mid Cap Growth Fund EQUITY ROSS STORES INC 1,866,400 20,000 0.47 0MML Mid Cap Growth Fund EQUITY AVERY DENNISON CORP 2,940,320 23,000 0.75 0MML Mid Cap Growth Fund EQUITY CORNING INC 3,403,050 105,000 0.87 0MML Mid Cap Growth Fund EQUITY EQUIFAX INC 3,138,000 20,000 0.80 0MML Mid Cap Growth Fund EQUITY FISERV INC 1,236,600 12,000 0.31 0MML Mid Cap Growth Fund EQUITY KLA CORP 1,162,440 6,000 0.30 0MML Mid Cap Growth Fund EQUITY MAXIM INTEGRATED PRODUCTS 3,583,330 53,000 0.91 0MML Mid Cap Growth Fund EQUITY MGM RESORTS INTERNATIONAL 3,588,750 165,000 0.91 0MML Mid Cap Growth Fund EQUITY VF CORP 1,686,000 24,000 0.43 0MML Mid Cap Growth Fund EQUITY SEALED AIR CORP 2,483,840 64,000 0.63 0MML Mid Cap Growth Fund EQUITY IDEX CORP 5,289,890 29,000 1.35 0MML Mid Cap Growth Fund EQUITY MARTIN MARIETTA MATERIALS 1,176,800 5,000 0.30 0MML Mid Cap Growth Fund EQUITY AGILENT TECHNOLOGIES INC 7,065,800 70,000 1.80 0MML Mid Cap Growth Fund EQUITY MICROCHIP TECHNOLOGY INC 6,679,400 65,000 1.70 0MML Mid Cap Growth Fund EQUITY RAYMOND JAMES FINANCIAL INC 1,091,400 15,000 0.28 0MML Mid Cap Growth Fund EQUITY MARVELL TECHNOLOGY GROUP LTD 6,352,000 160,000 1.62 0MML Mid Cap Growth Fund EQUITY GLOBAL PAYMENTS INC 3,018,860 17,000 0.77 0MML Mid Cap Growth Fund EQUITY ALIGN TECHNOLOGY INC 1,309,440 4,000 0.33 0MML Mid Cap Growth Fund EQUITY EXACT SCIENCES CORP 2,344,850 23,000 0.60 0MML Mid Cap Growth Fund EQUITY CARMAX INC 1,011,010 11,000 0.26 0MML Mid Cap Growth Fund EQUITY AXIS CAPITAL HOLDINGS LTD 1,893,720 43,000 0.48 0MML Mid Cap Growth Fund EQUITY BRUKER CORP 4,412,250 111,000 1.12 0MML Mid Cap Growth Fund EQUITY ASSURANT INC 2,790,130 23,000 0.71 0MML Mid Cap Growth Fund EQUITY ACADIA PHARMACEUTICALS INC 495,000 12,000 0.13 0MML Mid Cap Growth Fund EQUITY ALNYLAM PHARMACEUTICALS INC 2,184,000 15,000 0.56 0MML Mid Cap Growth Fund EQUITY DOMINO S PIZZA INC 578,381 1,360 0.15 0MML Mid Cap Growth Fund EQUITY MARKETAXESS HOLDINGS INC 1,926,360 4,000 0.49 0MML Mid Cap Growth Fund EQUITY TREEHOUSE FOODS INC 1,661,730 41,000 0.42 0MML Mid Cap Growth Fund EQUITY CHIPOTLE MEXICAN GRILL INC 2,860,533 2,300 0.73 0MML Mid Cap Growth Fund EQUITY BROADRIDGE FINANCIAL SOLUTIO 1,584,000 12,000 0.40 0MML Mid Cap Growth Fund EQUITY LULULEMON ATHLETICA INC 658,740 2,000 0.17 0MML Mid Cap Growth Fund EQUITY CONCHO RESOURCES INC 2,073,640 47,000 0.53 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Mid Cap Growth Fund EQUITY ULTA BEAUTY INC 1,119,900 5,000 0.28 0MML Mid Cap Growth Fund CASH EQUIVALENT ROWE T PRICE TREAS RES FD 7,796,392 7,796,392 1.98 0.01 9/19/2034MML Mid Cap Growth Fund EQUITY ENTEGRIS INC 2,676,240 36,000 0.68 0MML Mid Cap Growth Fund EQUITY GARTNER INC 1,249,500 10,000 0.32 0MML Mid Cap Growth Fund EQUITY NATIONAL INSTRUMENTS CORP 2,606,100 73,000 0.66 0MML Mid Cap Growth Fund EQUITY SEMPRA ENERGY 3,077,360 26,000 0.78 0MML Mid Cap Growth Fund EQUITY VENTURE GLOBAL LNG INC SR B P 80,808 21 0.02 0MML Mid Cap Growth Fund EQUITY SPOTIFY TECHNOLOGY SA 3,395,980 14,000 0.86 0MML Mid Cap Growth Fund EQUITY DOCUSIGN INC 6,241,960 29,000 1.59 0MML Mid Cap Growth Fund EQUITY CERIDIAN HCM HOLDING INC 3,884,550 47,000 0.99 0MML Mid Cap Growth Fund EQUITY KKR + CO INC 2,815,880 82,000 0.72 0MML Mid Cap Growth Fund EQUITY ELANCO ANIMAL HEALTH INC 3,016,440 108,000 0.77 0MML Mid Cap Growth Fund EQUITY ALCON INC 2,164,100 38,000 0.55 0MML Mid Cap Growth Fund EQUITY TRADEWEB MARKETS INC CLASS A 2,958,000 51,000 0.75 0MML Mid Cap Growth Fund EQUITY CLARIVATE PLC 5,361,270 173,000 1.36 0MML Mid Cap Growth Fund EQUITY AVANTOR INC 3,395,990 151,000 0.86 0MML Mid Cap Growth Fund EQUITY CROWDSTRIKE HOLDINGS INC A 1,510,520 11,000 0.38 0MML Mid Cap Growth Fund EQUITY SLACK TECHNOLOGIES INC CL A 778,940 29,000 0.20 0MML Mid Cap Growth Fund EQUITY L3HARRIS TECHNOLOGIES INC 2,038,080 12,000 0.52 0MML Mid Cap Growth Fund EQUITY BILL.COM HOLDINGS INC 702,170 7,000 0.18 0MML Mid Cap Growth Fund EQUITY RIVIAN AUTOMOTIVE SER D CV 1,298,589 83,834 0.33 0MML Mid Cap Growth Fund EQUITY REYNOLDS CONSUMER PRODUCTS I 1,347,280 44,000 0.34 0MML Mid Cap Growth Fund EQUITY O REILLY AUTOMOTIVE INC 3,688,640 8,000 0.94 0MML Mid Cap Growth Fund EQUITY DUNKIN BRANDS GROUP INC 3,358,310 41,000 0.85 0MML Mid Cap Growth Fund EQUITY KEMPER CORP 868,790 13,000 0.22 0MML Mid Cap Growth Fund EQUITY ALKERMES PLC 1,441,590 87,000 0.37 0MML Mid Cap Growth Fund EQUITY ACADIA HEALTHCARE CO INC 1,709,840 58,000 0.43 0MML Mid Cap Growth Fund EQUITY SPLUNK INC 3,762,600 20,000 0.96 0MML Mid Cap Growth Fund EQUITY FIVE BELOW 889,000 7,000 0.23 0MML Mid Cap Growth Fund EQUITY WEX INC 1,111,760 8,000 0.28 0MML Mid Cap Growth Fund EQUITY BRIGHT HORIZONS FAMILY SOLUT 504,925 3,321 0.13 0MML Mid Cap Growth Fund EQUITY SPROUTS FARMERS MARKET INC 1,109,290 53,000 0.28 0MML Mid Cap Growth Fund EQUITY BURLINGTON STORES INC 5,358,340 26,000 1.36 0MML Mid Cap Growth Fund EQUITY VEEVA SYSTEMS INC CLASS A 5,061,420 18,000 1.29 0MML Mid Cap Growth Fund EQUITY ALLEGION PLC 692,370 7,000 0.18 0MML Mid Cap Growth Fund EQUITY PERRIGO CO PLC 2,662,780 58,000 0.68 0MML Mid Cap Growth Fund EQUITY ULTRAGENYX PHARMACEUTICAL IN 410,950 5,000 0.10 0MML Mid Cap Growth Fund EQUITY FIVE9 INC 778,080 6,000 0.20 0MML Mid Cap Growth Fund EQUITY KEYSIGHT TECHNOLOGIES IN 4,642,660 47,000 1.18 0MML Mid Cap Growth Fund EQUITY PRA HEALTH SCIENCES INC 3,550,400 35,000 0.90 0MML Mid Cap Growth Fund EQUITY WEWORK COMPANIES, INC CLASS A - 4,132 - 0MML Mid Cap Growth Fund EQUITY WEWORK COMPANIES INC - 22,197 - 0MML Mid Cap Growth Fund EQUITY WEWORK COMPANIES INC - 17,440 - 0MML Mid Cap Growth Fund EQUITY ASCENDIS PHARMA A/S ADR 771,600 5,000 0.20 0MML Mid Cap Growth Fund EQUITY EVERSOURCE ENERGY 1,002,600 12,000 0.25 0MML Mid Cap Growth Fund EQUITY ETSY INC 2,189,340 18,000 0.56 0MML Mid Cap Growth Fund EQUITY BWX TECHNOLOGIES INC 2,815,500 50,000 0.72 0MML Mid Cap Growth Fund EQUITY TRANSUNION 4,122,370 49,000 1.05 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Mid Cap Growth Fund EQUITY MYOKARDIA INC 545,320 4,000 0.14 0MML Mid Cap Growth Fund EQUITY ATLASSIAN CORP PLC CLASS A 3,635,800 20,000 0.92 0MML Mid Cap Growth Fund EQUITY IONIS PHARMACEUTICALS INC 1,660,750 35,000 0.42 0MML Mid Cap Growth Fund EQUITY FORTIVE CORP 4,191,550 55,000 1.07 0MML Mid Cap Growth Fund EQUITY WASTE CONNECTIONS INC 1,764,600 17,000 0.45 0MML Mid Cap Growth Fund EQUITY IHS MARKIT LTD 2,512,320 32,000 0.64 0MML Mid Cap Growth Fund EQUITY KIRKLAND LAKE GOLD LTD 2,680,150 55,000 0.68 0MML Mid Cap Growth Fund EQUITY FLEETCOR TECHNOLOGIES INC 4,047,700 17,000 1.03 0MML Mid Cap Growth Fund EQUITY DOLLAR TREE INC 3,470,920 38,000 0.88 0MML Mid Cap Growth Fund EQUITY COLFAX CORP 3,041,920 97,000 0.77 0MML Mid Cap Growth Fund EQUITY DOLLAR GENERAL CORP 6,078,980 29,000 1.55 0MML Mid Cap Growth Fund EQUITY SS+C TECHNOLOGIES HOLDINGS 1,210,400 20,000 0.31 0MML Mid Cap Growth Fund EQUITY CBOE GLOBAL MARKETS INC 3,070,900 35,000 0.78 0MML Mid Cap Growth Fund EQUITY VISTEON CORP 69,220 1,000 0.02 0MML Mid Cap Growth Fund EQUITY INPHI CORP 1,347,000 12,000 0.34 0MML Mid Cap Growth Fund EQUITY RPM INTERNATIONAL INC 1,988,160 24,000 0.51 0MML Mid Cap Growth Fund EQUITY CASEY S GENERAL STORES INC 4,796,550 27,000 1.22 0MML Mid Cap Growth Fund EQUITY ROPER TECHNOLOGIES INC 3,160,880 8,000 0.80 0MML Mid Cap Growth Fund EQUITY ALASKA AIR GROUP INC 842,490 23,000 0.21 0MML Mid Cap Growth Fund EQUITY PIONEER NATURAL RESOURCES CO 1,289,850 15,000 0.33 0MML Mid Cap Growth Fund EQUITY HOLOGIC INC 10,435,790 157,000 2.65 0MML Mid Cap Growth Fund EQUITY HUNT (JB) TRANSPRT SVCS INC 4,676,060 37,000 1.19 0MML Mid Cap Growth Fund EQUITY HILTON WORLDWIDE HOLDINGS IN 3,924,720 46,000 1.00 0MML Mid Cap Growth Fund EQUITY ARGENX SE ADR 2,362,680 9,000 0.60 0MML Mid Cap Growth Fund EQUITY VENTURE GLOBAL LNG INC SR C PP 554,112 144 0.14 0MML Mid Cap Growth Fund EQUITY BLACK KNIGHT INC 3,830,200 44,000 0.97 0MML Mid Cap Growth Fund EQUITY ROOFOODS LTD (DELIVEROO) RP 744,265 1,915 0.19 0MML Mid Cap Growth Fund EQUITY ROOFOODS LTD (DELIVEROO) PP 20,895 50 0.01 0MML Mid Cap Growth Fund EQUITY TAPESTRY INC 218,820 14,000 0.06 0MML Mid Cap Growth Fund EQUITY APTIV PLC 3,758,880 41,000 0.96 0MML Managed Bond Fund CASH EQUIVALENT BEMIS COMPANY INC. 1,999,961 2,000,000 0.16 0 10/5/2020MML Managed Bond Fund FIXED INCOME ENTERGY ARKANSAS LLC 1,781,239 1,765,000 0.15 2.65 6/15/2051MML Managed Bond Fund FIXED INCOME BAE SYSTEMS PLC 592,274 595,000 0.05 1.9 2/15/2031MML Managed Bond Fund FIXED INCOME TAL ADVANTAGE VII LLC 4,508,041 4,500,000 0.37 2.05 9/20/2045MML Managed Bond Fund CASH EQUIVALENT SUNCOR ENERGY INC 999,691 1,000,000 0.08 0 11/23/2020MML Managed Bond Fund FIXED INCOME NUTRITION + BIOSCIENCES 758,423 755,000 0.06 1.832 10/15/2027MML Managed Bond Fund FIXED INCOME SMITHFIELD FOODS INC 945,037 943,000 0.08 3 10/15/2030MML Managed Bond Fund CASH EQUIVALENT B A T INTL FIN 2,999,482 3,000,000 0.25 0 10/14/2020MML Managed Bond Fund CASH EQUIVALENT ENBRIDGE (US) INC 6,999,288 7,000,000 0.58 0 10/20/2020MML Managed Bond Fund CASH EQUIVALENT DUKE ENERGY CORP 3,999,980 4,000,000 0.33 0 10/2/2020MML Managed Bond Fund FIXED INCOME ALPHABET INC 775,374 820,000 0.06 2.25 8/15/2060MML Managed Bond Fund FIXED INCOME SIERRA RECEIVABLES FUNDING CO 974,678 975,489 0.08 2.32 7/20/2037MML Managed Bond Fund FIXED INCOME AUTOZONE INC 954,528 975,000 0.08 1.65 1/15/2031MML Managed Bond Fund FIXED INCOME BUNGE LTD FINANCE CORP 386,684 385,000 0.03 1.63 8/17/2025MML Managed Bond Fund CASH EQUIVALENT HARLEY-DAVIDSON FND CP 999,891 1,000,000 0.08 0 10/20/2020MML Managed Bond Fund FIXED INCOME HOST HOTELS + RESORTS LP 2,029,286 2,120,000 0.17 3.5 9/15/2030MML Managed Bond Fund CASH EQUIVALENT SCHLUMBERGER HOLDINGS 999,671 1,000,000 0.08 0 1/11/2021MML Managed Bond Fund FIXED INCOME AGREE LP 487,492 470,000 0.04 2.9 10/1/2030

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Managed Bond Fund FIXED INCOME BANK OF AMERICA CORP 1,335,221 1,255,000 0.11 2.592 4/29/2031MML Managed Bond Fund FIXED INCOME AMCOR FINANCE USA INC 2,484,153 2,230,000 0.20 3.625 4/28/2026MML Managed Bond Fund FIXED INCOME US TREASURY N/B 12,373,206 12,300,000 1.02 0.375 4/30/2025MML Managed Bond Fund FUTURE US 10YR ULTRA FUT DEC20 - (7,200,000) 0.00 0 12/21/2020MML Managed Bond Fund FUTURE US ULTRA BOND CBT DEC20 - 25,600,000 0.04 0 12/21/2020MML Managed Bond Fund FUTURE US LONG BOND(CBT) DEC20 - 11,300,000 0.01 0 12/21/2020MML Managed Bond Fund FUTURE US 5YR NOTE (CBT) DEC20 - 31,500,000 0.00 0 12/31/2020MML Managed Bond Fund FUTURE US 2YR NOTE (CBT) DEC20 - 141,000,000 0.00 0 12/31/2020MML Managed Bond Fund FIXED INCOME STARBUCKS CORP 1,693,498 1,595,000 0.14 2.55 11/15/2030MML Managed Bond Fund FIXED INCOME APPLE INC 733,518 700,000 0.06 2.65 5/11/2050MML Managed Bond Fund FIXED INCOME AMERICAN INTL GROUP 824,986 745,000 0.07 3.4 6/30/2030MML Managed Bond Fund FIXED INCOME JPMORGAN CHASE + CO 1,062,175 990,000 0.09 2.956 5/13/2031MML Managed Bond Fund FIXED INCOME LEIDOS INC 673,871 575,000 0.06 4.375 5/15/2030MML Managed Bond Fund FIXED INCOME DISCOVERY COMMUNICATIONS 561,694 490,000 0.05 4.65 5/15/2050MML Managed Bond Fund FIXED INCOME ITC HOLDINGS CORP 962,428 895,000 0.08 2.95 5/14/2030MML Managed Bond Fund FIXED INCOME PAYPAL HOLDINGS INC 768,818 695,000 0.06 3.25 6/1/2050MML Managed Bond Fund FIXED INCOME WALT DISNEY COMPANY/THE 1,707,264 1,515,000 0.14 3.6 1/13/2051MML Managed Bond Fund FIXED INCOME VIACOMCBS INC 1,396,114 1,220,000 0.11 4.2 5/19/2032MML Managed Bond Fund FIXED INCOME BRIGHTHOUSE FINANCIAL IN 1,228,616 1,055,000 0.10 5.625 5/15/2030MML Managed Bond Fund FIXED INCOME UNITEDHEALTH GROUP INC 906,882 845,000 0.07 3.125 5/15/2060MML Managed Bond Fund FIXED INCOME ANTARES HOLDINGS 759,324 720,000 0.06 8.5 5/18/2025MML Managed Bond Fund FIXED INCOME DENTSPLY SIRONA INC 652,309 600,000 0.05 3.25 6/1/2030MML Managed Bond Fund FIXED INCOME MPLX LP 652,708 652,000 0.05 6.25 10/15/2022MML Managed Bond Fund FIXED INCOME FNMA POOL CA6096 10,020,275 9,323,238 0.82 3.5 6/1/2050MML Managed Bond Fund FIXED INCOME FED HM LN PC POOL RA2483 10,841,234 10,178,837 0.89 3.5 6/1/2050MML Managed Bond Fund FIXED INCOME YARA INTERNATIONAL ASA 315,676 295,000 0.03 3.148 6/4/2030MML Managed Bond Fund FIXED INCOME WRKCO INC 712,505 655,000 0.06 3 6/15/2033MML Managed Bond Fund FIXED INCOME AERCAP IRELAND CAP/GLOBA 696,320 645,000 0.06 6.5 7/15/2025MML Managed Bond Fund FIXED INCOME OCP CLO LTD 246,454 250,000 0.02 1.37175 7/20/2031MML Managed Bond Fund FIXED INCOME REINSURANCE GRP OF AMER 1,262,935 1,160,000 0.10 3.15 6/15/2030MML Managed Bond Fund FIXED INCOME PLAINS ALL AMER PIPELINE 1,115,134 1,150,000 0.09 3.8 9/15/2030MML Managed Bond Fund FIXED INCOME BARCLAYS COMMERCIAL MORTGAGE S 1,392,874 1,326,000 0.11 2.444 4/15/2053MML Managed Bond Fund FIXED INCOME PACIFIC GAS + ELECTRIC 737,389 775,000 0.06 2.5 2/1/2031MML Managed Bond Fund FIXED INCOME BP CAPITAL MARKETS PLC 1,563,750 1,500,000 0.13 4.375 12/31/2099MML Managed Bond Fund FIXED INCOME UPJOHN INC 1,278,671 1,235,000 0.11 2.7 6/22/2030MML Managed Bond Fund FIXED INCOME VEREIT OPERATING PARTNER 381,094 365,000 0.03 3.4 1/15/2028MML Managed Bond Fund FIXED INCOME CNH INDUSTRIAL CAP LLC 570,499 560,000 0.05 1.95 7/2/2023MML Managed Bond Fund FIXED INCOME AERCAP IRELAND CAP/GLOBA 1,411,855 1,370,000 0.12 4.5 9/15/2023MML Managed Bond Fund FIXED INCOME TAKEDA PHARMACEUTICAL 1,021,837 970,000 0.08 3.375 7/9/2060MML Managed Bond Fund FIXED INCOME FREDDIE MAC STACR 2,634,425 2,630,000 0.22 1.64813 6/25/2050MML Managed Bond Fund FIXED INCOME BM1175843 CDS USD P F 1.00000 (5,104,205) (5,000,000) 0.42 1 12/20/2025MML Managed Bond Fund CASH EQUIVALENT NUTRIEN LTD 999,481 1,000,000 0.08 0 12/22/2020MML Managed Bond Fund CASH EQUIVALENT PARKER-HANNIFIN CORP 5,998,423 6,000,000 0.49 0 11/13/2020MML Managed Bond Fund CASH EQUIVALENT NUTRIEN LTD 8,995,176 9,000,000 0.74 0 12/24/2020MML Managed Bond Fund FIXED INCOME FNMA POOL FM4017 951,813 898,668 0.08 3.5 8/1/2050MML Managed Bond Fund FIXED INCOME ONEMAIN FINANCIAL ISSUANCE TRU 394,918 396,000 0.03 2.21 9/14/2035MML Managed Bond Fund FIXED INCOME TIF FUNDING II LLC 640,908 641,963 0.05 2.09 8/20/2045MML Managed Bond Fund CASH EQUIVALENT INTERCONTINENTAL EXCHANGE 9,993,370 10,000,000 0.82 0 12/3/2020

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Managed Bond Fund FIXED INCOME KKR GROUP FINAN CO VIII 723,516 710,000 0.06 3.5 8/25/2050MML Managed Bond Fund FIXED INCOME PRUDENTIAL FINANCIAL INC 469,338 460,000 0.04 3.7 10/1/2050MML Managed Bond Fund CASH EQUIVALENT AMERICAN HONDA FINAN 10,996,074 11,000,000 0.90 0 11/19/2020MML Managed Bond Fund FIXED INCOME STACK INFRASTRUCTURE ISSUER LL 879,827 874,000 0.07 1.893 8/25/2045MML Managed Bond Fund FIXED INCOME TRITON CONTAINER FINANCE LLC 3,154,052 3,150,000 0.26 2.11 9/20/2045MML Managed Bond Fund CASH EQUIVALENT KEURIG DR PEPPER 999,937 1,000,000 0.08 0 10/13/2020MML Managed Bond Fund CASH EQUIVALENT AVANGRID INC 10,995,533 11,000,000 0.90 0 12/7/2020MML Managed Bond Fund FIXED INCOME WIND RIVER CLO LTD 1,132,864 1,150,000 0.09 2.025 7/15/2030MML Managed Bond Fund FIXED INCOME STRUCTURED ASSET SECURITIES CO 3,139,579 3,295,874 0.26 0.94813 11/25/2035MML Managed Bond Fund FIXED INCOME CANYON CAPITAL CLO LTD 247,272 250,000 0.02 3.025 10/15/2032MML Managed Bond Fund FIXED INCOME MKT 2020 525M MORTGAGE TRUST 911,014 976,000 0.07 2.9406 2/12/2040MML Managed Bond Fund FIXED INCOME MANHATTAN WEST 2,174,247 2,122,000 0.18 2.41281 9/10/2039MML Managed Bond Fund CASH EQUIVALENT DOMINION RESOURCES 10,999,305 11,000,000 0.90 0 10/13/2020MML Managed Bond Fund CASH EQUIVALENT SUNCOR ENERGY INC 10,995,533 11,000,000 0.90 0 12/7/2020MML Managed Bond Fund FIXED INCOME EDLINC STUDENT LOAN FUNDING TR 1,818,476 1,840,217 0.15 3.6 12/1/2047MML Managed Bond Fund FIXED INCOME ATHENE HOLDING LTD 6,220,088 5,728,000 0.51 4.125 1/12/2028MML Managed Bond Fund FIXED INCOME DEUTSCHE BANK NY 2,010,088 1,998,000 0.17 3.15 1/22/2021MML Managed Bond Fund FIXED INCOME HERTZ VEHICLE FINANCING LLC 2,290,217 2,310,000 0.19 3.6 2/25/2024MML Managed Bond Fund FIXED INCOME SOCIAL PROFESSIONAL LOAN PROGR 1,554,459 3,759,800 0.13 0.01 2/25/2042MML Managed Bond Fund FIXED INCOME ENTERPRISE PRODUCTS OPER 1,072,450 1,205,000 0.09 5.375 2/15/2078MML Managed Bond Fund FIXED INCOME MPLX LP 609,130 595,000 0.05 4.5 4/15/2038MML Managed Bond Fund FIXED INCOME PNMAC GMSR ISSUER TRUST 1,239,538 1,270,000 0.10 2.99813 2/25/2023MML Managed Bond Fund FIXED INCOME HIGHWOODS REALTY LP 524,052 475,000 0.04 4.125 3/15/2028MML Managed Bond Fund FIXED INCOME PETROLEOS MEXICANOS 548,163 585,000 0.05 6.5 3/13/2027MML Managed Bond Fund FIXED INCOME TELEFONICA EMISIONES SAU 1,273,552 1,105,000 0.10 4.665 3/6/2038MML Managed Bond Fund FIXED INCOME CVS HEALTH CORP 580,766 455,000 0.05 5.05 3/25/2048MML Managed Bond Fund FIXED INCOME CVS HEALTH CORP 497,450 425,000 0.04 4.3 3/25/2028MML Managed Bond Fund FIXED INCOME SOCIAL PROFESSIONAL LOAN PROGR 1,227,664 3,324,300 0.10 0.01 8/26/2047MML Managed Bond Fund FIXED INCOME AMERICAN INTL GROUP 1,188,694 1,025,000 0.10 4.2 4/1/2028MML Managed Bond Fund FIXED INCOME FNMA POOL AB7397 142,460 133,764 0.01 3 12/1/2042MML Managed Bond Fund EQUITY ALLSTATE CORP 2,467,150 95,000 0.20 0MML Managed Bond Fund FIXED INCOME FNMA POOL AR0306 9,268 8,702 0.00 3 1/1/2043MML Managed Bond Fund FIXED INCOME FNMA POOL MA1356 8,438,460 7,774,599 0.69 3.5 2/1/2043MML Managed Bond Fund FIXED INCOME JOBSOHIO BEVERAGE SYS STWD LIQ 2,503,586 1,950,000 0.21 4.532 1/1/2035MML Managed Bond Fund FIXED INCOME FNMA POOL AD6996 2,682,554 2,340,446 0.22 5 7/1/2040MML Managed Bond Fund FIXED INCOME FNMA POOL MA1368 221,415 207,899 0.02 3 3/1/2043MML Managed Bond Fund FIXED INCOME FNMA POOL AO8180 25,461 23,907 0.00 3 9/1/2042MML Managed Bond Fund FIXED INCOME FNMA POOL AL3215 116,448 109,340 0.01 3 2/1/2043MML Managed Bond Fund FIXED INCOME BPCE SA 3,640,844 3,635,000 0.30 1 10/6/2026MML Managed Bond Fund CASH EQUIVALENT NRW. BANK 4,998,534 5,000,000 0.41 0 12/8/2020MML Managed Bond Fund FIXED INCOME GNMA POOL 480539 239 212 0.00 7 4/15/2029MML Managed Bond Fund FIXED INCOME FED HM LN PC POOL C01079 1,217 1,037 0.00 7.5 10/1/2030MML Managed Bond Fund FIXED INCOME BANC OF AMERICA MORTGAGE SECUR 17,806 18,209 0.00 3.090479 8/25/2034MML Managed Bond Fund FIXED INCOME COUNTRYWIDE HOME LOANS 3,713 3,871 0.00 3.991 9/25/2033MML Managed Bond Fund FIXED INCOME AT+T INC 1,525,648 1,578,000 0.13 3.5 9/15/2053MML Managed Bond Fund FIXED INCOME DELTA AIR LINES/SKYMILES 1,006,315 980,000 0.08 4.5 10/20/2025MML Managed Bond Fund FIXED INCOME AT+T INC 4,994,147 5,153,000 0.41 3.55 9/15/2055MML Managed Bond Fund FIXED INCOME BROWN + BROWN INC 603,690 600,000 0.05 2.375 3/15/2031

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Managed Bond Fund FIXED INCOME DISCOVERY COMMUNICATIONS 1,228,519 1,210,000 0.10 4 9/15/2055MML Managed Bond Fund CASH EQUIVALENT BEMIS COMPANY INC. 8,999,034 9,000,000 0.74 0 10/21/2020MML Managed Bond Fund CASH EQUIVALENT LYONDELLBASELL INVEST 10,998,383 11,000,000 0.90 0 10/28/2020MML Managed Bond Fund FIXED INCOME ADVANCE AUTO PARTS 314,065 315,000 0.03 1.75 10/1/2027MML Managed Bond Fund FIXED INCOME BAT CAPITAL CORP 728,597 725,000 0.06 2.259 3/25/2028MML Managed Bond Fund FIXED INCOME VANTAGE DATA CENTERS LLC 1,301,596 1,301,000 0.11 1.992 9/15/2045MML Managed Bond Fund CASH EQUIVALENT MACQUARIE BANK LIMITED 3,998,319 4,000,000 0.33 0 12/17/2020MML Managed Bond Fund FIXED INCOME BM1176163 CDS USD R V 03MEVENT 4,000,000 4,000,000 0.33 1 12/20/2025MML Managed Bond Fund FIXED INCOME BM1176163 CDS USD P F 1.00000 (4,083,364) (4,000,000) 0.34 1 12/20/2025MML Managed Bond Fund FIXED INCOME BM1175843 CDS USD R V 03MEVENT 5,000,000 5,000,000 0.41 1 12/20/2025MML Managed Bond Fund FIXED INCOME FREDDIE MAC STACR 1,913,328 1,908,000 0.16 3.14813 6/25/2050MML Managed Bond Fund FIXED INCOME SBA TOWER TRUST 1,473,005 1,441,000 0.12 1.884 7/15/2050MML Managed Bond Fund FIXED INCOME BRISTOL MYERS SQUIBB CO 1,096,192 830,000 0.09 4.35 11/15/2047MML Managed Bond Fund FIXED INCOME CIGNA CORP 1,102,696 880,000 0.09 4.8 7/15/2046MML Managed Bond Fund CASH EQUIVALENT SCHLUMBERGER HOLDINGS 9,998,444 10,000,000 0.82 0 12/9/2020MML Managed Bond Fund FIXED INCOME CF HIPPOLYTA ISSUER LLC 1,213,561 1,200,000 0.10 1.69 7/15/2060MML Managed Bond Fund FIXED INCOME CF HIPPOLYTA ISSUER LLC 556,555 547,000 0.05 2.28 7/15/2060MML Managed Bond Fund CASH EQUIVALENT FMC TECH INC 5,999,550 6,000,000 0.49 0 10/15/2020MML Managed Bond Fund CASH EQUIVALENT HARLEY-DAVIDSON FND CP 999,962 1,000,000 0.08 0 10/8/2020MML Managed Bond Fund FIXED INCOME MAGNETITE CLO LTD 450,347 450,000 0.04 2.899 7/20/2033MML Managed Bond Fund CASH EQUIVALENT HARLEY-DAVIDSON FND CP 7,999,118 8,000,000 0.66 0 10/19/2020MML Managed Bond Fund FIXED INCOME AT+T INC 681,286 680,000 0.06 1.65 2/1/2028MML Managed Bond Fund CASH EQUIVALENT NRW. BANK 2,999,670 3,000,000 0.25 0 11/2/2020MML Managed Bond Fund FIXED INCOME ARES CAPITAL CORP 2,670,648 2,600,000 0.22 3.5 2/10/2023MML Managed Bond Fund FIXED INCOME ENTERPRISE PRODUCTS OPER 1,690,244 1,775,000 0.14 5.25 8/16/2077MML Managed Bond Fund FIXED INCOME MVW OWNER TRUST 170,849 167,577 0.01 2.42 12/20/2034MML Managed Bond Fund FIXED INCOME DISCOVERY COMMUNICATIONS 1,196,754 1,052,000 0.10 3.95 3/20/2028MML Managed Bond Fund FIXED INCOME SLM STUDENT LOAN TRUST 4,200,583 4,300,000 0.35 0.8445 10/25/2065MML Managed Bond Fund FIXED INCOME PARK AEROSPACE HOLDINGS 1,535,971 1,550,000 0.13 4.5 3/15/2023MML Managed Bond Fund FIXED INCOME EQT CORP 4,152,019 4,510,000 0.34 3.9 10/1/2027MML Managed Bond Fund FIXED INCOME SLC STUDENT LOAN TRUST 3,542,900 4,000,000 0.29 0.37013 2/15/2068MML Managed Bond Fund FIXED INCOME PLAINS ALL AMERICAN PIPE 1,487,668 2,345,000 0.12 6.125 12/31/2099MML Managed Bond Fund FIXED INCOME BANK OF NOVA SCOTIA 3,465,534 3,575,000 0.29 4.65 12/31/2099MML Managed Bond Fund FIXED INCOME CLEAR CREEK CLO LTD 2,014,592 2,040,000 0.17 1.47175 10/20/2030MML Managed Bond Fund FIXED INCOME MP CLO III, LTD 1,728,573 1,750,000 0.14 1.52175 10/20/2030MML Managed Bond Fund FIXED INCOME CIFC FUNDING LTD 2,309,547 2,330,000 0.19 1.45288 11/16/2030MML Managed Bond Fund FIXED INCOME HERCULES CAPITAL INC 2,945,776 2,910,000 0.24 4.625 10/23/2022MML Managed Bond Fund FIXED INCOME GLENCORE FUNDING LLC 1,063,121 975,000 0.09 3.875 10/27/2027MML Managed Bond Fund FIXED INCOME GENERAL MOTORS FINL CO 2,206,149 2,100,000 0.18 3.5 11/7/2024MML Managed Bond Fund FIXED INCOME WAVE 2017 1 LLC 2,822,296 3,119,083 0.23 3.844 11/15/2042MML Managed Bond Fund FIXED INCOME WAVE 2017 1 LLC 770,634 1,843,383 0.06 6.656 11/15/2042MML Managed Bond Fund FIXED INCOME FIBRIA OVERSEAS FINANCE 1,325,000 1,250,000 0.11 4 1/14/2025MML Managed Bond Fund FIXED INCOME NP SPE II LLC 2,322,812 2,260,000 0.19 4.219 10/21/2047MML Managed Bond Fund FIXED INCOME ENERGY TRANSFER OPERATNG 1,546,425 2,370,000 0.13 6.25 12/31/2099MML Managed Bond Fund FIXED INCOME COMCAST CORP 753,094 630,000 0.06 3.969 11/1/2047MML Managed Bond Fund FIXED INCOME AXIS SPECIALTY FINAN PLC 2,736,529 2,500,000 0.23 4 12/6/2027MML Managed Bond Fund FIXED INCOME HERO FUNDING TRUST 894,322 867,780 0.07 3.19 9/20/2048MML Managed Bond Fund FIXED INCOME INFRAESTRUCTURA ENERGETI 811,800 820,000 0.07 3.75 1/14/2028

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Managed Bond Fund OPTIONS BM1105949 SWAPTION 1,548,921 56,100,000 0.13 0 12/13/2032MML Managed Bond Fund OPTIONS BM1106210 SWAPTION 469,530 3,700,000 0.04 0 12/13/2032MML Managed Bond Fund FIXED INCOME ENLINK MIDSTREAM PARTNER 822,720 951,000 0.07 4.85 7/15/2026MML Managed Bond Fund FIXED INCOME CITIGROUP INC 1,986,878 1,725,000 0.16 4.125 7/25/2028MML Managed Bond Fund FIXED INCOME TEVA PHARMACEUTICALS NE 717,122 724,000 0.06 2.2 7/21/2021MML Managed Bond Fund FIXED INCOME FIRST REPUBLIC BANK 3,888,295 3,210,000 0.32 4.375 8/1/2046MML Managed Bond Fund FIXED INCOME NAVIENT STUDENT LOAN TRUST 3,117,010 3,117,011 0.26 1.39813 6/25/2065MML Managed Bond Fund FIXED INCOME VALE OVERSEAS LIMITED 1,478,125 1,250,000 0.12 6.25 8/10/2026MML Managed Bond Fund FIXED INCOME BUNGE LTD FINANCE CORP 1,271,374 1,179,000 0.10 3.25 8/15/2026MML Managed Bond Fund FIXED INCOME KRAFT HEINZ FOODS CO 668,390 616,000 0.05 3.95 7/15/2025MML Managed Bond Fund FIXED INCOME WP CAREY INC 854,647 757,000 0.07 4.25 10/1/2026MML Managed Bond Fund FIXED INCOME FED HM LN PC POOL C91251 31,858 28,858 0.00 4.5 6/1/2029MML Managed Bond Fund FIXED INCOME FED HM LN PC POOL J13972 29,899 28,159 0.00 3.5 1/1/2026MML Managed Bond Fund FIXED INCOME NISOURCE INC 1,291,512 950,000 0.11 5.8 2/1/2042MML Managed Bond Fund FIXED INCOME FNMA POOL AP8668 157,786 148,155 0.01 3 12/1/2042MML Managed Bond Fund FIXED INCOME FNMA POOL AR5391 73,562 69,072 0.01 3 1/1/2043MML Managed Bond Fund EQUITY SWAP CCPC GOLDMAN SACHS COC 60,000 60,000 0.00 0MML Managed Bond Fund FIXED INCOME PETROLEOS MEXICANOS 456,068 595,000 0.04 6.375 1/23/2045MML Managed Bond Fund FIXED INCOME SLM STUDENT LOAN TRUST 1,662,654 1,859,707 0.14 0.4545 10/25/2040MML Managed Bond Fund FIXED INCOME GOODGREEN TRUST 801,850 760,272 0.07 3.74 10/15/2052MML Managed Bond Fund FIXED INCOME RRAM 2,424,339 2,450,000 0.20 1.365 1/15/2030MML Managed Bond Fund FIXED INCOME YARA INTERNATIONAL ASA 3,899,812 3,328,000 0.32 4.75 6/1/2028MML Managed Bond Fund FIXED INCOME ROCKFORD TOWER CLO LTD 1,500,074 1,500,000 0.12 2.32175 4/20/2032MML Managed Bond Fund FIXED INCOME KNDL MORTGAGE TRUST 1,488,548 1,505,000 0.12 1.95238 5/15/2036MML Managed Bond Fund FIXED INCOME AASET 2019 1 TRUST 1,568,743 1,683,470 0.13 3.844 5/15/2039MML Managed Bond Fund FIXED INCOME BENEFIT STREET PARTNERS CLO LT 470,490 500,000 0.04 3.775 1/15/2029MML Managed Bond Fund FIXED INCOME MACH I 1,871,253 2,057,302 0.15 3.474 10/15/2039MML Managed Bond Fund FIXED INCOME ELMWOOD CLO III LTD 350,764 350,000 0.03 2.225 10/15/2032MML Managed Bond Fund FIXED INCOME CAPITAL AUTOMOTIVE REIT 412,485 398,000 0.03 3.81 2/15/2050MML Managed Bond Fund FIXED INCOME MAGNETITE CLO LTD 1,504,158 1,500,000 0.12 1.94943 7/15/2030MML Managed Bond Fund FIXED INCOME CIFC FUNDING LTD 1,003,013 1,000,000 0.08 1.94233 7/15/2032MML Managed Bond Fund FIXED INCOME ANCHORAGE CAPITAL CLO LTD 1,505,417 1,500,000 0.12 2.08902 7/20/2031MML Managed Bond Fund FIXED INCOME EATON VANCE CDO LTD 350,172 350,000 0.03 3.05 10/15/2030MML Managed Bond Fund FIXED INCOME AGL CLO 7 LTD 375,860 375,000 0.03 2.0495 7/15/2031MML Managed Bond Fund CASH EQUIVALENT NRW. BANK 4,999,813 5,000,000 0.41 0 10/15/2020MML Managed Bond Fund CASH EQUIVALENT SPIRE INC 11,499,273 11,500,000 0.95 0 10/13/2020MML Managed Bond Fund FIXED INCOME FED HM LN PC POOL C91217 9,618 8,621 0.00 5.5 11/1/2028MML Managed Bond Fund FUTURE 90DAY EUR FUTR DEC23 - (3,750,000) 0.00 0 12/18/2023MML Managed Bond Fund FIXED INCOME PROGRESSIVE CORP 1,625,000 1,625,000 0.13 5.375 12/31/2099MML Managed Bond Fund FIXED INCOME ATHENE HOLDING LTD 237,505 200,000 0.02 6.15 4/3/2030MML Managed Bond Fund FIXED INCOME BROOKFIELD FINANCE INC 3,298,015 2,825,000 0.27 4.35 4/15/2030MML Managed Bond Fund FIXED INCOME NEW YORK LIFE INSURANCE 574,985 510,000 0.05 3.75 5/15/2050MML Managed Bond Fund FIXED INCOME AXIS SPECIALTY FINANCE 1,313,753 1,315,000 0.11 4.9 1/15/2040MML Managed Bond Fund FIXED INCOME BROADRIDGE FINANCIAL SOL 1,310,827 1,210,000 0.11 2.9 12/1/2029MML Managed Bond Fund FIXED INCOME APOLLO MANAGEMENT HOLDIN 804,696 805,000 0.07 4.95 1/14/2050MML Managed Bond Fund FIXED INCOME CARVANA AUTO RECEIVABLES TRUST 1,671,771 1,625,000 0.14 3.07 7/15/2025MML Managed Bond Fund FIXED INCOME FORD MOTOR CREDIT CO LLC 1,381,645 1,410,000 0.11 3.087 1/9/2023MML Managed Bond Fund FIXED INCOME ATHENE GLOBAL FUNDING 2,865,524 2,780,000 0.24 2.5 1/14/2025

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Managed Bond Fund FIXED INCOME AVOLON HOLDINGS FNDG LTD 1,217,759 1,365,000 0.10 3.25 2/15/2027MML Managed Bond Fund FIXED INCOME EQT CORP 1,912,076 1,725,000 0.16 7.875 2/1/2025MML Managed Bond Fund FIXED INCOME CAPITAL AUTOMOTIVE REIT 508,473 495,699 0.04 3.25 2/15/2050MML Managed Bond Fund FIXED INCOME BX TRUST 4,064,664 4,113,235 0.33 1.75238 12/15/2036MML Managed Bond Fund FIXED INCOME OXFORD FINANCE FUNDING TRUST 1,557,957 1,536,000 0.13 3.101 2/15/2028MML Managed Bond Fund FIXED INCOME GNMA II POOL MA6656 10,177,931 9,698,561 0.84 3 5/20/2050MML Managed Bond Fund FIXED INCOME APOLLO AVIATION SECURITIZATION 1,427,493 1,549,240 0.12 3.351 1/16/2040MML Managed Bond Fund FIXED INCOME HYUNDAI CAPITAL AMERICA 4,365,570 4,225,000 0.36 3 2/10/2027MML Managed Bond Fund FIXED INCOME MKT 2020 525M MORTGAGE TRUST 464,465 475,000 0.04 2.9406 2/12/2040MML Managed Bond Fund FIXED INCOME CARLISLE COS INC 1,438,188 1,353,000 0.12 2.75 3/1/2030MML Managed Bond Fund FIXED INCOME BX COMMERCIAL MORTGAGE TRUST 2 1,626,062 1,641,336 0.13 1.95238 10/15/2036MML Managed Bond Fund FIXED INCOME GOODGREEN TRUST 2,824,164 2,786,653 0.23 2.76 10/15/2054MML Managed Bond Fund FIXED INCOME BENEFIT STREET PARTNERS CLO LT 500,310 500,000 0.04 2.225 10/15/2032MML Managed Bond Fund FIXED INCOME LEASEPLAN CORPORATION NV 1,584,146 1,535,000 0.13 2.875 10/24/2024MML Managed Bond Fund FIXED INCOME HORIZON AIRCRAFT FINANCE III L 2,141,404 2,335,647 0.18 3.425 11/15/2039MML Managed Bond Fund FIXED INCOME FLATIRON CLO LTD 246,273 250,000 0.02 2.98013 11/16/2032MML Managed Bond Fund FIXED INCOME FLATIRON CLO LTD 350,076 350,000 0.03 2.18013 11/16/2032MML Managed Bond Fund FIXED INCOME SIXTH STREET SPECIALTY 3,621,657 3,575,000 0.30 3.875 11/1/2024MML Managed Bond Fund FIXED INCOME HYUNDAI CAPITAL AMERICA 1,763,175 1,705,000 0.15 2.85 11/1/2022MML Managed Bond Fund FIXED INCOME COMCAST CORP 1,513,743 1,340,000 0.12 3.45 2/1/2050MML Managed Bond Fund FIXED INCOME CPT MORTGAGE TRUST 979,183 982,000 0.08 3.096693 11/13/2039MML Managed Bond Fund FIXED INCOME CPT MORTGAGE TRUST 1,468,825 1,556,000 0.12 3.096693 11/13/2039MML Managed Bond Fund FIXED INCOME NATIONAL OILWELL VARCO I 1,524,895 1,570,000 0.13 3.6 12/1/2029MML Managed Bond Fund FIXED INCOME BALLYROCK LTD 399,904 400,000 0.03 4.353 11/20/2030MML Managed Bond Fund FIXED INCOME DOMINOS PIZZA MASTER ISSUER LL 1,158,996 1,091,750 0.10 3.668 10/25/2049MML Managed Bond Fund FIXED INCOME STORE MASTER FUNDING LLC 2,908,508 2,866,967 0.24 3.65 11/20/2049MML Managed Bond Fund FIXED INCOME JACKSON PARK TRUST 2,374,559 2,300,000 0.20 3.131 10/14/2039MML Managed Bond Fund FIXED INCOME FNMA POOL AR4432 49,677 46,644 0.00 3 3/1/2043MML Managed Bond Fund FIXED INCOME JP MORGAN MORTGAGE TRUST 1,984,555 1,946,788 0.16 3.5 1/25/2047MML Managed Bond Fund FIXED INCOME GNMA II POOL MA4321 7,278,338 6,803,968 0.60 3.5 3/20/2047MML Managed Bond Fund FIXED INCOME ECMC GROUP STUDENT LOAN TRUST 2,130,925 2,142,787 0.18 1.34813 12/27/2066MML Managed Bond Fund FIXED INCOME ENSTAR GROUP LTD 958,502 920,000 0.08 4.5 3/10/2022MML Managed Bond Fund FIXED INCOME FULTON FINANCIAL CORP 1,599,513 1,565,000 0.13 3.6 3/16/2022MML Managed Bond Fund FIXED INCOME HUMANA INC 1,086,563 830,000 0.09 4.8 3/15/2047MML Managed Bond Fund FIXED INCOME CAPITAL AUTOMOTIVE REIT 941,552 938,608 0.08 4.18 4/15/2047MML Managed Bond Fund FIXED INCOME BRE GRAND ISLANDER TIMESHARE I 501,748 499,493 0.04 2.94 5/25/2029MML Managed Bond Fund FIXED INCOME FNMA POOL MA3029 3,016,130 2,861,431 0.25 3 6/1/2032MML Managed Bond Fund FIXED INCOME HELIOS ISSUER, LLC 1,574,039 1,478,654 0.13 4.94 9/20/2049MML Managed Bond Fund FIXED INCOME BANK OF AMERICA CORP 1,401,404 1,150,000 0.12 4.244 4/24/2038MML Managed Bond Fund FIXED INCOME TEACHERS INSUR + ANNUITY 878,114 750,000 0.07 4.27 5/15/2047MML Managed Bond Fund FIXED INCOME SPIRIT REALTY LP 142,713 133,000 0.01 4.45 9/15/2026MML Managed Bond Fund FIXED INCOME SOCIAL PROFESSIONAL LOAN PROGR 1,003,872 990,000 0.08 4.21 7/25/2040MML Managed Bond Fund FIXED INCOME FNMA POOL MA3090 1,288,264 1,222,188 0.11 3 8/1/2032MML Managed Bond Fund FIXED INCOME DOMINOS PIZZA MASTER ISSUER LL 809,898 758,550 0.07 4.118 7/25/2047MML Managed Bond Fund FIXED INCOME SOCIAL PROFESSIONAL LOAN PROGR 1,617,626 4,688,500 0.13 0.01 9/25/2040MML Managed Bond Fund FIXED INCOME TRIP RAIL MASTER FUNDING LLC 174,252 174,097 0.01 2.709 8/15/2047MML Managed Bond Fund FIXED INCOME DRB PRIME STUDENT LOAN TRUST 553,579 547,785 0.05 3.02 8/25/2042MML Managed Bond Fund FIXED INCOME HERO FUNDING TRUST 264,979 256,114 0.02 3.28 9/20/2048

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Managed Bond Fund FIXED INCOME HERO FUNDING TRUST 217,483 205,895 0.02 4.07 9/20/2048MML Managed Bond Fund FIXED INCOME GENERAL MOTORS CO 849,573 800,000 0.07 5.15 4/1/2038MML Managed Bond Fund FIXED INCOME GENERAL MOTORS CO 605,520 565,000 0.05 4.2 10/1/2027MML Managed Bond Fund FIXED INCOME BLACKROCK TCP CAP CORP 2,910,846 2,870,000 0.24 4.125 8/11/2022MML Managed Bond Fund FIXED INCOME CENOVUS ENERGY INC 1,017,090 1,125,000 0.08 4.25 4/15/2027MML Managed Bond Fund FIXED INCOME BRIGHTHOUSE FINANCIAL IN 1,218,901 1,175,000 0.10 3.7 6/22/2027MML Managed Bond Fund FIXED INCOME BRIGHTHOUSE FINANCIAL IN 1,082,697 1,125,000 0.09 4.7 6/22/2047MML Managed Bond Fund FIXED INCOME BX COMMERCIAL MORTGAGE TRUST 2 1,958,732 1,982,134 0.16 2.15238 10/15/2036MML Managed Bond Fund FIXED INCOME EDVESTINU PRIVATE EDUCATION LO 1,420,627 1,338,821 0.12 3.58 11/25/2038MML Managed Bond Fund FIXED INCOME ELMWOOD CLO II LTD. 2,901,122 2,900,000 0.24 1.72175 4/20/2031MML Managed Bond Fund FIXED INCOME SAUDI ARABIAN OIL CO 2,385,183 2,075,000 0.20 4.25 4/16/2039MML Managed Bond Fund FIXED INCOME CBAM CLO MANAGEMENT 1,902,316 1,900,000 0.16 2.32175 4/20/2032MML Managed Bond Fund FIXED INCOME CASTLELAKE AIRCRAFT SECURITIZA 1,193,185 1,289,292 0.10 3.967 4/15/2039MML Managed Bond Fund FIXED INCOME TEXTAINER MARINE CONTAINERS LI 485,893 485,893 0.04 3.96 4/20/2044MML Managed Bond Fund FIXED INCOME MARATHON PETROLEUM CORP 516,861 510,000 0.04 4.5 4/1/2048MML Managed Bond Fund FIXED INCOME EATON VANCE CDO LTD 1,802,558 1,800,000 0.15 2.225 4/15/2031MML Managed Bond Fund FIXED INCOME DRYDEN SENIOR LOAN FUND 1,500,461 1,500,000 0.12 2.18013 5/15/2032MML Managed Bond Fund FIXED INCOME NELNET STUDENT LOAN TRUST 1,600,655 1,617,440 0.13 1.07513 6/27/2067MML Managed Bond Fund FIXED INCOME ALLEGRO CLO LTD 2,200,587 2,200,000 0.18 3.02175 4/20/2032MML Managed Bond Fund FIXED INCOME NAVIENT STUDENT LOAN TRUST 2,310,289 2,249,000 0.19 3.67 2/15/2068MML Managed Bond Fund FIXED INCOME ANHEUSER BUSCH CO/INBEV 4,284,777 3,475,000 0.35 4.9 2/1/2046MML Managed Bond Fund FIXED INCOME ENSTAR GROUP LTD 1,792,891 1,600,000 0.15 4.95 6/1/2029MML Managed Bond Fund FIXED INCOME PIONEER AIRCRAFT FINANCE LIMIT 1,415,274 1,529,217 0.12 3.967 6/15/2044MML Managed Bond Fund FIXED INCOME AIMCO 1,963,998 2,000,000 0.16 2.70775 7/22/2032MML Managed Bond Fund FIXED INCOME ARES CAPITAL CORP 1,510,462 1,450,000 0.12 4.2 6/10/2024MML Managed Bond Fund FIXED INCOME AXIS SPECIALTY FINANCE 1,213,182 1,110,000 0.10 3.9 7/15/2029MML Managed Bond Fund FIXED INCOME KKR GRP FIN CO VI LLC 1,449,564 1,260,000 0.12 3.75 7/1/2029MML Managed Bond Fund FIXED INCOME SPIRIT REALTY LP 1,341,849 1,290,000 0.11 4 7/15/2029MML Managed Bond Fund FIXED INCOME SOFI ALTERNATIVE TRUST 5,424,408 5,045,961 0.45 4.860709 1/25/2045MML Managed Bond Fund FIXED INCOME AVERY POINT CLO LTD 954,041 1,000,000 0.08 3.875 1/15/2028MML Managed Bond Fund FIXED INCOME HORIZON AIRCRAFT FINANCE II LL 1,229,905 1,317,248 0.10 3.721 7/15/2039MML Managed Bond Fund FIXED INCOME COLLEGE AVE STUDENT LOANS 2,222,160 2,244,000 0.18 3.81 12/28/2048MML Managed Bond Fund FIXED INCOME COLLEGE AVE STUDENT LOANS 1,267,952 1,281,000 0.10 4.46 12/28/2048MML Managed Bond Fund FIXED INCOME JBS USA/FOOD/FINANCE 844,653 776,000 0.07 5.5 1/15/2030MML Managed Bond Fund FIXED INCOME IMPERIAL BRANDS FIN PLC 2,993,921 2,764,000 0.25 3.875 7/26/2029MML Managed Bond Fund FIXED INCOME CARMAX AUTO OWNER TRUST 1,990,112 1,974,000 0.16 2.85 1/15/2026MML Managed Bond Fund FIXED INCOME GLOBAL AIR LEASE CO LTD 779,907 1,398,937 0.06 6.5 9/15/2024MML Managed Bond Fund FIXED INCOME NAVIENT STUDENT LOAN TRUST 1,213,879 1,190,000 0.10 3.9 1/15/2043MML Managed Bond Fund FIXED INCOME DEEPHAVEN RESIDENTIAL MORTGAGE 546,141 540,208 0.04 3.948 1/25/2059MML Managed Bond Fund FIXED INCOME NELNET STUDENT LOAN TRUST 3,066,017 3,250,000 0.25 1.54813 4/25/2067MML Managed Bond Fund FIXED INCOME STORE CAPITAL CORP 1,743,563 1,626,000 0.14 4.625 3/15/2029MML Managed Bond Fund FIXED INCOME MORGAN STANLEY CAPITAL I TRUST 2,291,275 1,950,000 0.19 4.272 3/15/2052MML Managed Bond Fund FIXED INCOME APPALACHIAN POWER CO 1,562,679 1,250,000 0.13 4.5 3/1/2049MML Managed Bond Fund FIXED INCOME FREDDIE MAC STACR 64,029 64,131 0.01 1.49813 3/25/2029MML Managed Bond Fund FIXED INCOME HERO FUNDING TRUST 841,898 830,271 0.07 3.08 9/20/2042MML Managed Bond Fund FIXED INCOME NAVIENT STUDENT LOAN TRUST 7,111,640 7,050,000 0.59 1.44813 3/25/2066MML Managed Bond Fund FIXED INCOME CNH INDUSTRIAL CAP LLC 2,342,042 2,280,000 0.19 3.875 10/15/2021MML Managed Bond Fund FIXED INCOME NAVIENT STUDENT LOAN TRUST 1,724,854 1,724,855 0.14 1.29813 3/25/2066

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Managed Bond Fund FIXED INCOME GOODGREEN TRUST 1,660,471 1,597,423 0.14 3.23 10/15/2052MML Managed Bond Fund FIXED INCOME LAZARD GROUP LLC 1,353,346 1,253,000 0.11 3.625 3/1/2027MML Managed Bond Fund FIXED INCOME PLAINS ALL AMER PIPELINE 656,022 617,000 0.05 4.5 12/15/2026MML Managed Bond Fund FIXED INCOME BANK OF AMERICA CORP 1,248,832 1,090,000 0.10 4.183 11/25/2027MML Managed Bond Fund FIXED INCOME CHARTER COMM OPT LLC/CAP 985,821 735,000 0.08 6.484 10/23/2045MML Managed Bond Fund FIXED INCOME HERO FUNDING TRUST 1,070,086 1,028,352 0.09 3.57 9/20/2047MML Managed Bond Fund FIXED INCOME LABRADOR AVIATION FINANCE LIMI 1,921,755 2,173,750 0.16 4.3 1/15/2042MML Managed Bond Fund FIXED INCOME NELNET PRIVATE EDUCATION LOAN 359,898 358,059 0.03 3.6 12/26/2040MML Managed Bond Fund FIXED INCOME BARCLAYS PLC 1,915,323 1,720,000 0.16 4.337 1/10/2028MML Managed Bond Fund FIXED INCOME ENERGY TRANSFER OPERATNG 1,122,594 1,085,000 0.09 4.2 4/15/2027MML Managed Bond Fund FIXED INCOME ACCESS GROUP INC 49,951 50,000 0.00 1.699 7/1/2039MML Managed Bond Fund FIXED INCOME MYLAN NV 2,508,817 2,230,000 0.21 3.95 6/15/2026MML Managed Bond Fund FIXED INCOME MYLAN NV 1,706,518 1,375,000 0.14 5.25 6/15/2046MML Managed Bond Fund FIXED INCOME PARK AEROSPACE HOLDINGS 5,075,450 5,055,000 0.42 5.25 8/15/2022MML Managed Bond Fund FIXED INCOME PARK AEROSPACE HOLDINGS 549,155 545,000 0.05 5.5 2/15/2024MML Managed Bond Fund FIXED INCOME MOSAIC SOLAR LOANS LLC 322,721 300,650 0.03 4.45 6/20/2042MML Managed Bond Fund FIXED INCOME SUTTONPARK STRUCTURED SETTLEME 2,227,328 1,925,081 0.18 4.19 1/15/2071MML Managed Bond Fund FIXED INCOME MFT TRUST 1,018,731 1,003,000 0.08 3.4767 2/10/2042MML Managed Bond Fund FIXED INCOME LUNAR AIRCRAFT 2020 1 LIMITED 887,223 957,745 0.07 3.376 2/15/2045MML Managed Bond Fund FIXED INCOME MFT TRUST 950,506 919,000 0.08 3.358 2/10/2042MML Managed Bond Fund FIXED INCOME KLA CORP 1,706,282 1,615,000 0.14 3.3 3/1/2050MML Managed Bond Fund FIXED INCOME GNMA II POOL MA6710 10,262,504 9,758,808 0.84 3 6/20/2050MML Managed Bond Fund FIXED INCOME BAT CAPITAL CORP 1,204,592 1,050,000 0.10 4.7 4/2/2027MML Managed Bond Fund FIXED INCOME DISCOVER BANK 3,045,428 2,905,000 0.25 4.682 8/9/2028MML Managed Bond Fund EQUITY SWAPS BARCLAYS BOC (2,105,000) (2,105,000) 0.17 0MML Managed Bond Fund FIXED INCOME WILLIS ENGINE SECURITIZATION T 988,429 1,171,900 0.08 4.75 9/15/2043MML Managed Bond Fund FIXED INCOME BUNGE LTD FINANCE CORP 1,994,441 1,810,000 0.16 4.35 3/15/2024MML Managed Bond Fund FIXED INCOME WILLIS NORTH AMERICA INC 2,336,406 1,965,000 0.19 4.5 9/15/2028MML Managed Bond Fund FIXED INCOME PATTERSON UTI ENERGY INC 1,298,460 1,680,000 0.11 3.95 2/1/2028MML Managed Bond Fund FIXED INCOME CAL FUNDING III LTD 1,205,816 1,216,000 0.10 4.34 9/25/2043MML Managed Bond Fund FIXED INCOME LAZARD GROUP LLC 873,386 755,000 0.07 4.5 9/19/2028MML Managed Bond Fund FIXED INCOME PRUDENTIAL FINANCIAL INC 2,758,543 2,440,000 0.23 5.7 9/15/2048MML Managed Bond Fund FIXED INCOME AIRCASTLE LTD 3,061,729 3,095,000 0.25 4.4 9/25/2023MML Managed Bond Fund FIXED INCOME SOCIAL PROFESSIONAL LOAN PROGR 1,097,010 4,961,600 0.09 0.01 2/25/2048MML Managed Bond Fund FIXED INCOME EATON VANCE CDO LTD 1,691,638 1,700,000 0.14 2.025 10/15/2030MML Managed Bond Fund FIXED INCOME MADISON PARK FUNDING LTD 603,639 620,000 0.05 2.47175 10/18/2030MML Managed Bond Fund FIXED INCOME J.G. WENTWORTH XLII LLC 1,412,461 1,380,609 0.12 3.96 10/15/2075MML Managed Bond Fund FIXED INCOME ECMC GROUP STUDENT LOAN TRUST 1,960,808 1,998,397 0.16 0.94813 9/25/2068MML Managed Bond Fund FIXED INCOME VEREIT OPERATING PARTNER 2,497,086 2,260,000 0.21 4.625 11/1/2025MML Managed Bond Fund FIXED INCOME SIERRA RECEIVABLES FUNDING CO 712,690 737,935 0.06 5.2 9/20/2035MML Managed Bond Fund FIXED INCOME STORE MASTER FUNDING LLC 1,373,002 1,296,539 0.11 4.29 10/20/2048MML Managed Bond Fund FIXED INCOME ADAMS OUTDOOR ADVERTISING 1,997,748 1,920,026 0.16 4.81 11/15/2048MML Managed Bond Fund FIXED INCOME BX TRUST 732,303 735,000 0.06 1.05238 11/15/2035MML Managed Bond Fund FIXED INCOME BX TRUST 1,860,886 1,876,000 0.15 1.85238 11/15/2035MML Managed Bond Fund FIXED INCOME HELIOS ISSUER, LLC 472,517 439,146 0.04 4.87 7/20/2048MML Managed Bond Fund FIXED INCOME GENERAL MOTORS FINL CO 1,255,088 1,216,000 0.10 4.2 11/6/2021MML Managed Bond Fund FIXED INCOME AASET 2018 2 TRUST 1,391,025 1,495,616 0.11 4.454 11/18/2038MML Managed Bond Fund FIXED INCOME BANC OF AMERICA MERRILL LYNCH 626,465 670,000 0.05 1.50238 9/15/2034

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Managed Bond Fund FIXED INCOME KREF 2018 FL1 LTD. 1,621,078 1,670,000 0.13 2.1505 6/15/2036MML Managed Bond Fund FIXED INCOME CSX CORP 862,931 650,000 0.07 4.75 11/15/2048MML Managed Bond Fund FIXED INCOME DUPONT DE NEMOURS INC 2,220,676 1,750,000 0.18 5.319 11/15/2038MML Managed Bond Fund FIXED INCOME TACO BELL FUNDING, LLC 1,195,773 1,120,050 0.10 4.94 11/25/2048MML Managed Bond Fund FIXED INCOME HARBOR PARK CLO LTD 1,285,940 1,290,000 0.11 1.97175 1/20/2031MML Managed Bond Fund FIXED INCOME ATRIUM CDO CORP 1,175,055 1,190,000 0.10 2.0055 1/23/2031MML Managed Bond Fund FIXED INCOME HORIZON AIRCRAFT FINANCE I LIM 888,848 940,892 0.07 4.458 12/15/2038MML Managed Bond Fund FIXED INCOME AMERICAN INTL GROUP 3,123,952 2,860,000 0.26 5.75 4/1/2048MML Managed Bond Fund FIXED INCOME AMERICAN INTL GROUP 618,705 505,000 0.05 4.75 4/1/2048MML Managed Bond Fund FIXED INCOME AMERICAN TOWER TRUST I 2,072,114 1,910,000 0.17 3.652 3/15/2048MML Managed Bond Fund FIXED INCOME MOSAIC SOLAR LOANS LLC 305,469 289,230 0.03 4.01 6/22/2043MML Managed Bond Fund FIXED INCOME ABBVIE INC 1,201,706 1,045,000 0.10 4.05 11/21/2039MML Managed Bond Fund FIXED INCOME GENPACT LUXEMBOURG SARL 2,785,523 2,660,000 0.23 3.375 12/1/2024MML Managed Bond Fund FIXED INCOME VEREIT OPERATING PARTNER 2,794,879 2,790,000 0.23 3.1 12/15/2029MML Managed Bond Fund FIXED INCOME HERTZ VEHICLE FINANCING LLC 2,282,684 2,293,000 0.19 3.03 12/26/2025MML Managed Bond Fund FIXED INCOME SANTANDER REVOLVING AUTO LOAN 567,995 561,000 0.05 3 1/26/2032MML Managed Bond Fund FIXED INCOME SANTANDER REVOLVING AUTO LOAN 1,083,077 1,087,000 0.09 3.45 1/26/2032MML Managed Bond Fund FIXED INCOME SANTANDER REVOLVING AUTO LOAN 900,661 856,000 0.07 2.8 1/26/2032MML Managed Bond Fund FIXED INCOME DIAMONDBACK ENERGY INC 1,108,640 1,105,000 0.09 3.25 12/1/2026MML Managed Bond Fund FIXED INCOME PLANET FITNESS MASTER ISSUER L 2,167,534 2,304,585 0.18 3.858 12/5/2049MML Managed Bond Fund FIXED INCOME CBAM CLO MANAGEMENT 900,474 900,000 0.07 2.375 1/15/2031MML Managed Bond Fund FIXED INCOME MPLX LP 1,453,521 1,775,000 0.12 6.875 12/31/2099MML Managed Bond Fund FIXED INCOME US TREASURY N/B 11,683,417 9,800,000 0.96 2.25 8/15/2049MML Managed Bond Fund FIXED INCOME BLACKROCK TCP CAP CORP 2,956,618 2,910,000 0.24 3.9 8/23/2024MML Managed Bond Fund FIXED INCOME ICG US CLO LTD 744,523 750,000 0.06 1.6245 10/26/2032MML Managed Bond Fund FIXED INCOME BAT CAPITAL CORP 586,469 540,000 0.05 4.758 9/6/2049MML Managed Bond Fund FIXED INCOME WILLIS NORTH AMERICA INC 975,209 905,000 0.08 2.95 9/15/2029MML Managed Bond Fund FIXED INCOME CARLYLE FINANCE SUB LLC 1,190,348 1,100,000 0.10 3.5 9/19/2029MML Managed Bond Fund FIXED INCOME SPIRIT REALTY LP 512,037 515,000 0.04 3.4 1/15/2030MML Managed Bond Fund FIXED INCOME SPIRIT REALTY LP 2,309,250 2,280,000 0.19 3.2 1/15/2027MML Managed Bond Fund FIXED INCOME SERVICE PROPERTIES TRUST 990,413 1,155,000 0.08 4.95 10/1/2029MML Managed Bond Fund FIXED INCOME MARKEL CORP 645,907 585,000 0.05 3.35 9/17/2029MML Managed Bond Fund FIXED INCOME ONEMAIN FINANCIAL ISSUANCE TRU 8,951,852 8,400,000 0.74 3.14 10/14/2036MML Managed Bond Fund FIXED INCOME OCCIDENTAL PETROLEUM COR 1,083,453 1,258,000 0.09 6.6 3/15/2046MML Managed Bond Fund FIXED INCOME NELNET STUDENT LOAN TRUST 2,047,263 2,150,000 0.17 3.45 10/25/2067MML Managed Bond Fund FIXED INCOME OAK HILL CREDIT PARTNERS 994,220 1,000,000 0.08 1.58775 10/22/2032MML Managed Bond Fund FIXED INCOME OAK HILL CREDIT PARTNERS 498,885 500,000 0.04 2.90775 10/22/2032MML Managed Bond Fund FIXED INCOME WAVE USA 3,581,593 3,861,264 0.29 3.597 9/15/2044MML Managed Bond Fund FIXED INCOME TRINITY RAIL LEASING L.P. 3,207,850 3,289,000 0.26 3.1 10/18/2049MML Managed Bond Fund FIXED INCOME NAVIENT STUDENT LOAN TRUST 1,547,367 1,530,000 0.13 4.22 6/16/2042MML Managed Bond Fund FIXED INCOME ANTARES HOLDINGS 2,978,152 2,945,000 0.25 6 8/15/2023MML Managed Bond Fund FIXED INCOME 321 HENDERSON RECEIVABLES LLC 1,938,805 1,863,640 0.16 3.26 9/15/2072MML Managed Bond Fund FIXED INCOME GLENCORE FUNDING LLC 2,359,819 2,150,000 0.19 4 4/16/2025MML Managed Bond Fund FIXED INCOME CROWN CASTLE TOWERS LLC 1,724,814 1,700,000 0.14 3.222 5/15/2042MML Managed Bond Fund FIXED INCOME EDUCATIONAL SERVICES OF AMERIC 1,060,027 1,100,000 0.09 1.64813 10/25/2056MML Managed Bond Fund FIXED INCOME ABBVIE INC 1,551,439 1,260,000 0.13 4.7 5/14/2045MML Managed Bond Fund FIXED INCOME COMM MORTGAGE TRUST 1,006,746 1,000,000 0.08 4.434846 5/10/2048MML Managed Bond Fund FIXED INCOME ENLINK MIDSTREAM PARTNER 2,517,652 2,924,000 0.21 4.15 6/1/2025

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Managed Bond Fund FIXED INCOME CNO FINANCIAL GROUP INC 3,006,193 2,621,000 0.25 5.25 5/30/2025MML Managed Bond Fund FIXED INCOME REYNOLDS AMERICAN INC 1,196,917 985,000 0.10 5.85 8/15/2045MML Managed Bond Fund FIXED INCOME NAVIENT STUDENT LOAN TRUST 847,173 940,000 0.07 1.64813 10/25/2058MML Managed Bond Fund FIXED INCOME ENERGY TRANSFER OPERATNG 1,003,791 1,000,000 0.08 6.125 12/15/2045MML Managed Bond Fund FIXED INCOME ABN AMRO BANK NV 349,091 310,000 0.03 4.75 7/28/2025MML Managed Bond Fund FUTURE 90DAY EUR FUTR MAR21 - (2,250,000) 0.00 0 3/15/2021MML Managed Bond Fund FIXED INCOME SPIRIT AIR 2015 1 PTT A 1,284,875 1,431,516 0.11 4.1 10/1/2029MML Managed Bond Fund FIXED INCOME HSBC HOLDINGS PLC 1,643,199 1,512,000 0.14 4.25 8/18/2025MML Managed Bond Fund FIXED INCOME CITIGROUP INC 521,817 450,000 0.04 4.45 9/29/2027MML Managed Bond Fund FIXED INCOME AUTORIDAD CANAL DE PANAM 1,305,948 1,050,000 0.11 4.95 7/29/2035MML Managed Bond Fund FIXED INCOME DOMINOS PIZZA MASTER ISSUER LL 3,164,523 2,976,000 0.26 4.474 10/25/2045MML Managed Bond Fund FIXED INCOME SIERRA RECEIVABLES FUNDING CO 70,975 71,041 0.01 3.08 9/20/2032MML Managed Bond Fund FIXED INCOME GOLDMAN SACHS GROUP INC 625,736 550,000 0.05 4.25 10/21/2025MML Managed Bond Fund FIXED INCOME MICROSOFT CORP 2,916,399 2,064,000 0.24 4.45 11/3/2045MML Managed Bond Fund FIXED INCOME BANK OF NOVA SCOTIA 920,915 795,000 0.08 4.5 12/16/2025MML Managed Bond Fund FIXED INCOME DEVON ENERGY CORPORATION 1,692,252 1,510,000 0.14 5.85 12/15/2025MML Managed Bond Fund FUTURE 90DAY EUR FUTR SEP21 - (4,250,000) 0.00 0 9/13/2021MML Managed Bond Fund FIXED INCOME FNMA POOL AL8173 1,096,911 964,119 0.09 5 2/1/2044MML Managed Bond Fund FIXED INCOME FNMA POOL AV1897 193,690 180,129 0.02 3.5 12/1/2028MML Managed Bond Fund FUTURE 90DAY EUR FUTR MAR23 - (3,000,000) 0.00 0 3/13/2023MML Managed Bond Fund FUTURE 90DAY EUR FUTR DEC24 - (10,000,000) 0.00 0 12/16/2024MML Managed Bond Fund FIXED INCOME FNMA POOL AV2325 541,483 503,572 0.04 3.5 12/1/2028MML Managed Bond Fund FIXED INCOME AIRCASTLE LTD 1,753,943 1,750,000 0.14 5 4/1/2023MML Managed Bond Fund FIXED INCOME HUNTSMAN INTERNATIONAL L 1,075,298 1,000,000 0.09 5.125 11/15/2022MML Managed Bond Fund FIXED INCOME FNMA TBA 30 YR 2 15,536,789 15,025,000 1.28 2 10/14/2050MML Managed Bond Fund FUTURE 90DAY EUR FUTR SEP22 - (3,500,000) - 0 9/19/2022MML Managed Bond Fund FIXED INCOME NAVIENT STUDENT LOAN TRUST 2,353,231 2,370,000 0.19 1.64813 6/25/2065MML Managed Bond Fund FIXED INCOME ONEMAIN DIRECT AUTO RECEIVABLE 1,864,521 1,774,000 0.15 3.95 11/14/2028MML Managed Bond Fund FIXED INCOME NAVIENT STUDENT LOAN TRUST 3,077,619 2,950,000 0.25 4.04 12/15/2059MML Managed Bond Fund FIXED INCOME DB MASTER FINANCE LLC 1,686,093 1,542,420 0.14 4.352 5/20/2049MML Managed Bond Fund FIXED INCOME BANK 510,490 441,000 0.04 4.128 4/15/2052MML Managed Bond Fund FIXED INCOME ENERGY TRANSFER OPERATNG 1,266,136 1,150,000 0.10 5.875 1/15/2024MML Managed Bond Fund FIXED INCOME MARS INC 798,983 660,000 0.07 3.95 4/1/2049MML Managed Bond Fund FIXED INCOME FCI FUNDING, LLC 315,447 310,031 0.03 3.63 2/18/2031MML Managed Bond Fund FIXED INCOME WIND RIVER CLO LTD 889,574 900,000 0.07 2.051 11/1/2031MML Managed Bond Fund FIXED INCOME PETROLEOS MEXICANOS 575,225 665,000 0.05 5.35 2/12/2028MML Managed Bond Fund FIXED INCOME VOYA FINANCIAL INC 1,081,013 1,080,000 0.09 4.7 1/23/2048MML Managed Bond Fund FIXED INCOME SEQUOIA MORTGAGE TRUST 212,154 208,150 0.02 4 2/25/2049MML Managed Bond Fund FIXED INCOME EQUITABLE HOLDINGS INC 1,063,827 900,000 0.09 5 4/20/2048MML Managed Bond Fund FIXED INCOME NAVIENT STUDENT LOAN TRUST 4,517,987 4,530,000 0.37 1.04813 12/27/2067MML Managed Bond Fund FIXED INCOME WELLS FARGO MORTGAGE BACKED SE 893,747 875,326 0.07 4 11/25/2048MML Managed Bond Fund FIXED INCOME GOODGREEN TRUST 1,404,292 1,326,099 0.12 3.86 10/15/2054MML Managed Bond Fund FIXED INCOME BROOKFIELD FINANCE INC 2,090,352 1,752,000 0.17 4.85 3/29/2029MML Managed Bond Fund FIXED INCOME CAMB COMMERCIAL MORTGAGE TRUST 878,586 898,516 0.07 1.90238 12/15/2037MML Managed Bond Fund FIXED INCOME CROWN CASTLE INTL CORP 377,680 287,000 0.03 5.2 2/15/2049MML Managed Bond Fund FIXED INCOME SOCIAL PROFESSIONAL LOAN PROGR 1,593,081 6,724,700 0.13 0 6/15/2048MML Managed Bond Fund FIXED INCOME BANK 792,590 665,833 0.07 4.267 2/15/2052MML Managed Bond Fund FIXED INCOME BANK 612,081 547,420 0.05 4.438 2/15/2052

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Managed Bond Fund FIXED INCOME AVIS BUDGET RENTAL CAR FUNDING 1,287,054 1,271,000 0.11 4.53 3/20/2023MML Managed Bond Fund FIXED INCOME GENPACT LUXEMBOURG SARL 2,456,983 2,400,000 0.20 3.7 4/1/2022MML Managed Bond Fund FIXED INCOME BARCLAYS COMMERCIAL MORTGAGE S 1,321,506 1,610,000 0.11 4.408717 8/5/2038MML Managed Bond Fund FIXED INCOME BARCLAYS COMMERCIAL MORTGAGE S 2,000,607 2,250,000 0.16 4.408717 8/5/2038MML Managed Bond Fund FIXED INCOME BARCLAYS COMMERCIAL MORTGAGE S 1,030,630 1,370,000 0.08 4.408717 8/5/2038MML Managed Bond Fund FIXED INCOME 522 FUNDING CLO LTD 798,516 820,000 0.07 2.52175 10/20/2031MML Managed Bond Fund FIXED INCOME STEELE CREEK CLO LTD 1,092,769 1,170,000 0.09 2.57038 8/18/2031MML Managed Bond Fund FIXED INCOME NEWFIELD EXPLORATION CO 1,549,565 1,650,000 0.13 5.375 1/1/2026MML Managed Bond Fund FUTURE 90DAY EUR FUTR DEC20 - (2,500,000) 0.00 0 12/14/2020MML Managed Bond Fund FIXED INCOME XLIT LTD 2,544,654 2,250,000 0.21 4.45 3/31/2025MML Managed Bond Fund FIXED INCOME FNMA POOL AR4109 114,609 107,613 0.01 3 2/1/2043MML Managed Bond Fund FIXED INCOME FNMA POOL AT0169 225,044 211,307 0.02 3 3/1/2043MML Managed Bond Fund FIXED INCOME FNMA POOL AR1975 36,544 34,313 0.00 3 12/1/2042MML Managed Bond Fund FIXED INCOME FNMA POOL AB8809 61,872 58,095 0.01 3 3/1/2043MML Managed Bond Fund FIXED INCOME POTOMAC ELECTRIC POWER 846,996 700,000 0.07 4.15 3/15/2043MML Managed Bond Fund FIXED INCOME FNMA POOL AR2174 226,907 213,057 0.02 3 4/1/2043MML Managed Bond Fund FIXED INCOME EDUCATIONAL FUNDING OF THE SOU 596,975 625,000 0.05 3.9445 4/25/2046MML Managed Bond Fund FIXED INCOME NISOURCE INC 1,293,507 1,035,000 0.11 4.8 2/15/2044MML Managed Bond Fund FIXED INCOME HIGHER EDUCATION FUNDING 393,099 450,000 0.03 0 1/1/2044MML Managed Bond Fund FIXED INCOME HIGHER EDUCATION FUNDING 399,331 450,000 0.03 1.796 1/1/2044MML Managed Bond Fund FIXED INCOME SERVICE PROPERTIES TRUST 745,317 760,000 0.06 4.5 6/15/2023MML Managed Bond Fund EQUITY SLM STUDENT LN TR 2006 2 4,401,722 7,308 0.36 0MML Managed Bond Fund FIXED INCOME CREDIT SUISSE AG 3,475,643 3,069,000 0.29 6.5 8/8/2023MML Managed Bond Fund FIXED INCOME ALLSTATE CORP 4,435,827 4,260,000 0.36 5.75 8/15/2053MML Managed Bond Fund FIXED INCOME FNMA TBA 15 YR 2 44,933,736 43,225,000 3.70 2 10/19/2035MML Managed Bond Fund FIXED INCOME VERIZON COMMUNICATIONS 1,440,586 885,000 0.12 6.55 9/15/2043MML Managed Bond Fund FIXED INCOME VALLEY NATIONAL BANCORP 1,639,389 1,530,000 0.13 5.125 9/27/2023MML Managed Bond Fund FIXED INCOME WELLS FARGO + COMPANY 1,203,290 909,000 0.10 5.375 11/2/2043MML Managed Bond Fund FIXED INCOME TANGER PROPERTIES LP 1,456,272 1,448,000 0.12 3.875 12/1/2023MML Managed Bond Fund FIXED INCOME ARCH CAPITAL GRP US INC 687,035 540,000 0.06 5.144 11/1/2043MML Managed Bond Fund FIXED INCOME CHASE EDUCATION LOAN TRUST 5,145,033 5,411,817 0.42 0.33325 6/28/2039MML Managed Bond Fund FIXED INCOME LEGG MASON INC 1,654,600 1,195,000 0.14 5.625 1/15/2044MML Managed Bond Fund FIXED INCOME COMCAST CORP 1,159,427 880,000 0.10 4.75 3/1/2044MML Managed Bond Fund FIXED INCOME CMS ENERGY CORP 1,021,222 780,000 0.08 4.875 3/1/2044MML Managed Bond Fund FIXED INCOME COMM MORTGAGE TRUST 1,477,202 1,375,000 0.12 4.199 3/10/2047MML Managed Bond Fund FIXED INCOME HSBC HOLDINGS PLC 1,313,646 1,225,000 0.11 4.25 3/14/2024MML Managed Bond Fund FIXED INCOME SUNOCO LOGISTICS PARTNER 489,137 525,000 0.04 5.3 4/1/2044MML Managed Bond Fund FIXED INCOME PLAINS ALL AMER PIPELINE 1,059,543 1,195,000 0.09 4.7 6/15/2044MML Managed Bond Fund FIXED INCOME GLENCORE FUNDING LLC 3,376,562 3,065,000 0.28 4.625 4/29/2024MML Managed Bond Fund FIXED INCOME AMERICAN INTL GROUP 845,753 725,000 0.07 4.5 7/16/2044MML Managed Bond Fund FIXED INCOME FREDDIE MAC 980,498 847,821 0.08 5.5 5/15/2033MML Managed Bond Fund FIXED INCOME GLOBAL SC FINANCE SRL 190,663 191,667 0.02 3.19 7/17/2029MML Managed Bond Fund FIXED INCOME SOUTH CAROLINA STUDENT LOAN CO 2,927,219 3,050,000 0.24 1.65513 8/1/2035MML Managed Bond Fund FIXED INCOME SYNGENTA FINANCE NV 2,180,931 2,065,000 0.18 4.441 4/24/2023MML Managed Bond Fund FIXED INCOME NORFOLK SOUTHERN CORP 1,053,887 860,000 0.09 4.05 8/15/2052MML Managed Bond Fund FIXED INCOME BACARDI LTD 548,776 450,000 0.05 5.15 5/15/2038MML Managed Bond Fund FIXED INCOME FORD MOTOR CREDIT CO LLC 2,777,167 2,760,000 0.23 4.14 2/15/2023MML Managed Bond Fund FIXED INCOME CITY OF HOPE/THE 1,277,470 1,050,000 0.11 4.378 8/15/2048

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Managed Bond Fund FIXED INCOME UNITED AIR 2018 1 B PTT 360,777 465,264 0.03 4.6 9/1/2027MML Managed Bond Fund FIXED INCOME BARCLAYS PLC 2,090,679 2,085,000 0.17 1.66013 5/16/2024MML Managed Bond Fund FIXED INCOME HERO FUNDING TRUST 1,668,248 1,554,656 0.14 4.67 9/20/2048MML Managed Bond Fund FIXED INCOME AMAZON.COM INC 1,006,886 775,000 0.08 4.05 8/22/2047MML Managed Bond Fund FIXED INCOME PSMC 2018 1 TRUST 1,717,781 1,687,735 0.14 3.5 6/25/2048MML Managed Bond Fund FIXED INCOME FNMA POOL CA1909 6,013,807 5,554,063 0.49 4.5 6/1/2048MML Managed Bond Fund FIXED INCOME MADISON PARK FUNDING LTD 1,635,798 1,665,000 0.13 1.875 7/15/2030MML Managed Bond Fund FIXED INCOME VIVINT SOLAR FINANCING LLC 2,661,135 2,621,999 0.22 7.37 4/30/2048MML Managed Bond Fund FIXED INCOME CASTLELAKE AIRCRAFT STRUCTURED 1,254,108 1,343,348 0.10 4.125 6/15/2043MML Managed Bond Fund FIXED INCOME TRINITY RAIL LEASING L.P. 2,459,775 2,420,000 0.20 4.62 6/17/2048MML Managed Bond Fund FIXED INCOME GENERAL MOTORS FINL CO 2,327,913 2,193,000 0.19 4.15 6/19/2023MML Managed Bond Fund FIXED INCOME AVENTURA MALL TRUST 4,009,047 4,270,000 0.33 4.249397 7/5/2040MML Managed Bond Fund FIXED INCOME NAVIENT STUDENT LOAN TRUST 4,653,552 4,700,000 0.38 0.94813 3/25/2067MML Managed Bond Fund FIXED INCOME EQM MIDSTREAM PARTNERS L 2,320,466 2,325,000 0.19 4.75 7/15/2023MML Managed Bond Fund FIXED INCOME CROWN CASTLE TOWERS LLC 3,133,828 2,750,000 0.26 4.241 7/15/2048MML Managed Bond Fund FIXED INCOME MORGAN STANLEY CAPITAL I TRUST 878,977 760,000 0.07 4.62 7/15/2051MML Managed Bond Fund FIXED INCOME WELLS FARGO COMMERCIAL MORTGAG 1,701,505 1,450,000 0.14 4.405 6/15/2051MML Managed Bond Fund FIXED INCOME WELLS FARGO COMMERCIAL MORTGAG 439,686 400,000 0.04 4.556 6/15/2051MML Managed Bond Fund FIXED INCOME KINROSS GOLD CORP 533,070 470,000 0.04 4.5 7/15/2027MML Managed Bond Fund FIXED INCOME BHMS MORTGAGE TRUST 4,255,385 4,450,000 0.35 1.40238 7/15/2035MML Managed Bond Fund FIXED INCOME BHMS MORTGAGE TRUST 4,591,252 4,950,000 0.38 1.65238 7/15/2035MML Managed Bond Fund FIXED INCOME BANK OF AMERICA CORP 557,205 475,000 0.05 4.271 7/23/2029MML Managed Bond Fund FIXED INCOME CARLYLE GLOBAL MARKET STRATEGI 308,274 330,000 0.03 3.09675 7/28/2028MML Managed Bond Fund FIXED INCOME COLLEGE LOAN CORPORATION TRUST 716,499 900,000 0.06 0 1/25/2047MML Managed Bond Fund FIXED INCOME CENOVUS ENERGY INC 769,092 765,000 0.06 6.75 11/15/2039MML Managed Bond Fund FIXED INCOME TECK RESOURCES LIMITED 962,518 850,000 0.08 6 8/15/2040MML Managed Bond Fund FIXED INCOME FED HM LN PC POOL C91344 96,158 89,415 0.01 3.5 11/1/2030MML Managed Bond Fund FIXED INCOME STRUCTURED RECEIVABLES FINANCE 151,428 144,382 0.01 3.73 8/15/2036MML Managed Bond Fund FIXED INCOME ORANGE CNTY CA LOCAL TRANSPRTN 2,067,768 1,350,000 0.17 6.908 2/15/2041MML Managed Bond Fund FIXED INCOME MCKESSON CORP 749,359 550,000 0.06 6 3/1/2041MML Managed Bond Fund FIXED INCOME MORGAN STANLEY CAPITAL I TRUST 1,330,081 1,325,000 0.11 5.2 6/15/2044MML Managed Bond Fund FIXED INCOME JPMORGAN CHASE + CO 1,649,805 1,125,000 0.14 5.6 7/15/2041MML Managed Bond Fund FIXED INCOME FED HM LN PC POOL D97258 11,537 10,355 0.00 5.5 4/1/2027MML Managed Bond Fund FIXED INCOME GNMA II TBA 30 YR 3.5 61,839,500 58,720,000 5.09 3.5 10/21/2050MML Managed Bond Fund FIXED INCOME NEWFIELD EXPLORATION CO 1,903,177 1,904,000 0.16 5.75 1/30/2022MML Managed Bond Fund FIXED INCOME QWEST CORP 765,636 725,000 0.06 6.75 12/1/2021MML Managed Bond Fund FIXED INCOME FED HM LN PC POOL D97417 10,527 9,444 0.00 5.5 10/1/2027MML Managed Bond Fund FIXED INCOME FNMA POOL AD0836 55,498 49,796 0.00 5.5 11/1/2028MML Managed Bond Fund FIXED INCOME MARATHON PETROLEUM CORP 1,365,411 1,120,000 0.11 6.5 3/1/2041MML Managed Bond Fund FIXED INCOME CVS PASS THROUGH TRUST 1,213,960 1,048,962 0.10 5.926 1/10/2034MML Managed Bond Fund FIXED INCOME FNMA POOL AA3980 54,342 50,116 0.00 4.5 4/1/2028MML Managed Bond Fund FIXED INCOME UNITED MEXICAN STATES 4,064,294 3,727,000 0.33 4.75 3/8/2044MML Managed Bond Fund FIXED INCOME MOLSON COORS BEVERAGE 407,720 360,000 0.03 5 5/1/2042MML Managed Bond Fund FIXED INCOME RAYTHEON TECH CORP 1,262,526 1,000,000 0.10 4.5 6/1/2042MML Managed Bond Fund FIXED INCOME NEWFIELD EXPLORATION CO 945,799 975,000 0.08 5.625 7/1/2024MML Managed Bond Fund FIXED INCOME PRUDENTIAL FINANCIAL INC 579,265 550,000 0.05 5.875 9/15/2042MML Managed Bond Fund FIXED INCOME GNMA II TBA 30 YR 3 2,067,732 1,975,000 0.17 3 10/21/2050MML Managed Bond Fund FIXED INCOME GENERAL ELECTRIC CO 114,327 113,000 0.01 4.125 10/9/2042

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Managed Bond Fund FIXED INCOME FED HM LN PC POOL C91026 28,353 25,449 0.00 5.5 4/1/2027MML Managed Bond Fund FIXED INCOME NELNET STUDENT LOAN TRUST 302,450 315,057 0.02 1.929 3/22/2032MML Managed Bond Fund FIXED INCOME PLAINS ALL AMER PIPELINE 410,338 375,000 0.03 6.65 1/15/2037MML Managed Bond Fund FIXED INCOME COMCAST CORP 419,479 265,000 0.03 6.95 8/15/2037MML Managed Bond Fund FIXED INCOME FED HM LN PC POOL C91074 2,976 2,669 0.00 5.5 8/1/2027MML Managed Bond Fund FIXED INCOME GOLDMAN SACHS GROUP INC 1,663,603 1,145,000 0.14 6.75 10/1/2037MML Managed Bond Fund FIXED INCOME CENTERPOINT ENERGY RESOU 1,793,018 1,250,000 0.15 6.625 11/1/2037MML Managed Bond Fund FIXED INCOME OVINTIV INC 494,933 545,000 0.04 6.5 2/1/2038MML Managed Bond Fund FIXED INCOME GNMA POOL 374440 197 186 0.00 7 11/15/2023MML Managed Bond Fund FIXED INCOME FNMA POOL 529453 2,726 2,322 0.00 7.5 1/1/2030MML Managed Bond Fund FIXED INCOME FREDDIE MAC 36,556 32,207 0.00 7 8/15/2029MML Managed Bond Fund FIXED INCOME GNMA POOL 500928 3,530 3,074 0.00 7 5/15/2029MML Managed Bond Fund FIXED INCOME FNMA POOL 575667 8,302 6,997 0.00 7 3/1/2031MML Managed Bond Fund FIXED INCOME FNMA POOL 535996 4,402 3,756 0.00 7.5 6/1/2031MML Managed Bond Fund FIXED INCOME GNMA POOL 491089 6,976 6,398 0.00 7 12/15/2028MML Managed Bond Fund FIXED INCOME GLENCORE FINANCE CANADA 1,047,983 894,000 0.09 5.55 10/25/2042MML Managed Bond Fund FIXED INCOME COMM MORTGAGE TRUST 692,134 1,060,000 0.06 3.703 10/15/2045MML Managed Bond Fund FIXED INCOME PRUDENTIAL FINANCIAL INC 1,088,730 1,025,000 0.09 5.625 6/15/2043MML Managed Bond Fund FIXED INCOME NATIONAL OILWELL VARCO I 1,354,236 1,506,000 0.11 3.95 12/1/2042MML Managed Bond Fund FIXED INCOME DELL INT LLC / EMC CORP 3,172,633 2,702,000 0.26 6.02 6/15/2026MML Managed Bond Fund FIXED INCOME GE CAPITAL INTL FUNDING 353,612 335,000 0.03 4.418 11/15/2035MML Managed Bond Fund FIXED INCOME OXFORD FINANCE FUNDING TRUST 171,116 171,050 0.01 3.968 6/17/2024MML Managed Bond Fund FIXED INCOME MOLSON COORS BEVERAGE 1,185,641 1,124,000 0.10 4.2 7/15/2046MML Managed Bond Fund FIXED INCOME FNMA POOL AS1304 1,041,756 968,818 0.09 3.5 12/1/2028MML Managed Bond Fund FIXED INCOME HEALTHCARE TRUST OF AMER 1,018,534 915,000 0.08 3.5 8/1/2026MML Managed Bond Fund FIXED INCOME AMTRUST FINANCIAL SERVIC 3,124,659 3,370,000 0.26 6.125 8/15/2023MML Managed Bond Fund FIXED INCOME AMER AIRLN 14 1 B PTT 99,245 140,132 0.01 4.375 4/1/2024MML Managed Bond Fund FIXED INCOME MORGAN STANLEY 3,704,003 3,200,000 0.30 4.35 9/8/2026MML Managed Bond Fund FIXED INCOME BROWN + BROWN INC 1,249,172 1,132,000 0.10 4.2 9/15/2024MML Managed Bond Fund FIXED INCOME EL PUERTO DE LIVERPOOL 2,728,101 2,620,000 0.22 3.95 10/2/2024MML Managed Bond Fund FIXED INCOME ARES FINANCE CO LLC 2,223,481 2,080,000 0.18 4 10/8/2024MML Managed Bond Fund FIXED INCOME CAPITAL AUTOMOTIVE REIT 848,845 850,298 0.07 3.66 10/15/2044MML Managed Bond Fund FIXED INCOME CRONOS CONTAINERS PROGRAM LTD 211,445 211,111 0.02 3.27 11/18/2029MML Managed Bond Fund FIXED INCOME ASSOC BANC CORP 2,568,832 2,411,000 0.21 4.25 1/15/2025MML Managed Bond Fund FUTURE 90DAY EUR FUTR MAR22 - (3,750,000) - 0 3/14/2022MML Managed Bond Fund FIXED INCOME ENTERGY LOUISIANA LLC 1,105,999 1,005,000 0.09 4.95 1/15/2045MML Managed Bond Fund FIXED INCOME EDUCATIONAL SERVICES OF AMERIC 1,160,392 1,200,000 0.10 1.64813 6/25/2048MML Managed Bond Fund FIXED INCOME COMM MORTGAGE TRUST 2,943,687 2,908,000 0.24 4.70515 10/10/2047MML Managed Bond Fund FIXED INCOME LAZARD GROUP LLC 867,172 800,000 0.07 3.75 2/13/2025MML Managed Bond Fund FIXED INCOME FNMA POOL 252926 95 82 0.00 8 12/1/2029MML Managed Bond Fund FIXED INCOME GNMA POOL 352022 2,355 2,224 0.00 7 11/15/2023MML Managed Bond Fund FIXED INCOME GNMA POOL 510083 862 756 0.00 7 7/15/2029MML Managed Bond Fund FIXED INCOME GNMA II POOL 008746 2,702 2,648 0.00 3.125 11/20/2025MML Managed Bond Fund FIXED INCOME GNMA POOL 493723 2,588 2,245 0.00 7 8/15/2029MML Managed Bond Fund CASH US DOLLAR 1,334,932 1,334,932 0.11 0MML Managed Bond Fund CASH EURO CURRENCY 1 1 - 0MML Managed Bond Fund FIXED INCOME FNMA POOL 253437 115 99 0.00 8 9/1/2030MML Managed Bond Fund FIXED INCOME FNMA POOL 253481 68 58 0.00 8 10/1/2030

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Managed Bond Fund FIXED INCOME FED HM LN PC POOL C01135 4,816 4,129 0.00 7.5 2/1/2031MML Managed Bond Fund FIXED INCOME GNMA II POOL 080136 598 584 0.00 3.125 11/20/2027MML Managed Bond Fund FIXED INCOME FNMA POOL 602008 3,857 3,299 0.00 8 8/1/2031MML Managed Bond Fund FIXED INCOME FNMA POOL 190317 2,722 2,326 0.00 8 8/1/2031MML Managed Bond Fund FIXED INCOME FNMA POOL 597220 3,343 2,834 0.00 8 9/1/2031MML Managed Bond Fund FIXED INCOME CITIGROUP INC 523,924 375,000 0.04 6.625 6/15/2032MML Managed Bond Fund FIXED INCOME GNMA POOL 581417 5,032 4,417 0.00 7 7/15/2032MML Managed Bond Fund FIXED INCOME MERRILL LYNCH MORTGAGE INVESTO 1,769 1,857 0.00 3.03163 7/25/2033MML Managed Bond Fund FIXED INCOME FREDDIE MAC 1,741,651 1,533,885 0.14 5.5 10/15/2033MML Managed Bond Fund FIXED INCOME COUNTRYWIDE HOME LOANS 14,170 14,677 0.00 3.665677 2/25/2034MML Managed Bond Fund FIXED INCOME STRUCTURED ADJUSTABLE RATE MOR 15,346 15,461 0.00 2.970284 3/25/2034MML Managed Bond Fund FIXED INCOME WAMU MORTGAGE PASS THROUGH CER 43,688 45,680 0.00 2.41929 4/25/2044MML Managed Bond Fund FIXED INCOME ERAC USA FINANCE LLC 172,648 125,000 0.01 6.7 6/1/2034MML Managed Bond Fund FIXED INCOME INDYMAC INDX MORTGAGE LOAN TRU 34,524 34,625 0.00 3.164963 8/25/2034MML Managed Bond Fund FIXED INCOME UNITED MEXICAN STATES 918,585 685,000 0.08 6.75 9/27/2034MML Managed Bond Fund FIXED INCOME MERRILL LYNCH MORTGAGE INVESTO 1,864 1,888 0.00 3.249992 2/25/2034MML Managed Bond Fund FIXED INCOME GRUPO TELEVISA SAB 2,644,808 2,196,000 0.22 6.625 3/18/2025MML Managed Bond Fund FIXED INCOME FED HM LN PC POOL C90939 16,880 15,172 0.00 5.5 12/1/2025MML Managed Bond Fund FIXED INCOME PETROLEOS MEXICANOS 116,262 140,000 0.01 6.625 6/15/2035MML Managed Bond Fund FIXED INCOME XCEL ENERGY INC 1,832,624 1,250,000 0.15 6.5 7/1/2036MML Managed Bond Fund FIXED INCOME NEVADA POWER CO 812,511 550,000 0.07 6.65 4/1/2036MML Managed Bond Fund FIXED INCOME GOLDMAN SACHS GROUP INC 1,735,001 1,410,000 0.14 5.95 1/15/2027MML Managed Bond Fund FIXED INCOME VALE OVERSEAS LIMITED 820,065 630,000 0.07 6.875 11/21/2036MML Managed Bond Fund FIXED INCOME GSR MORTGAGE LOAN TRUST 5,595 5,542 0.00 3.489604 8/25/2034MML Managed Bond Fund FIXED INCOME SLM STUDENT LOAN TRUST 1,722,662 1,933,416 0.14 0.5345 1/25/2044MML Managed Bond Fund FIXED INCOME NELNET STUDENT LOAN TRUST 488,373 564,505 0.04 0.475 6/25/2041MML Managed Bond Fund FIXED INCOME BANK OF AMERICA CORP 2,188,062 1,550,000 0.18 6.11 1/29/2037MML Managed Bond Fund FIXED INCOME BEAR STEARNS COMMERCIAL MORTGA 359,064 362,773 0.03 5.513 1/12/2045MML Managed Bond Fund FIXED INCOME USF+G CAPITAL I 1,390,803 885,000 0.11 8.5 12/15/2045MML Managed Bond Fund FIXED INCOME GNMA POOL 371146 52 50 0.00 7 9/15/2023MML Managed Bond Fund FIXED INCOME FNMA POOL 532819 130 112 0.00 8 3/1/2030MML Managed Bond Fund FIXED INCOME FNMA POOL 534703 2,775 2,382 0.00 8 5/1/2030MML Managed Bond Fund FIXED INCOME FNMA POOL AB7401 127,442 119,663 0.01 3 12/1/2042MML Managed Bond Fund FIXED INCOME FED HM LN PC POOL C91424 63,980 59,321 0.01 3.5 1/1/2032MML Managed Bond Fund FIXED INCOME FED HM LN PC POOL C91128 1,553 1,393 0.00 5.5 12/1/2027MML Managed Bond Fund FIXED INCOME FED HM LN PC POOL C91148 69,761 62,580 0.01 5.5 1/1/2028MML Managed Bond Fund FIXED INCOME FNMA POOL 888586 80,631 76,517 0.01 3.326 10/1/2034MML Managed Bond Fund FIXED INCOME FNMA POOL 725692 63,492 60,615 0.01 3.138 10/1/2033MML Managed Bond Fund FIXED INCOME GNMA POOL 488634 2,191 1,927 0.00 7 5/15/2029MML Managed Bond Fund FIXED INCOME GNMA POOL 499410 1,271 1,104 0.00 7 7/15/2029MML Managed Bond Fund FIXED INCOME FNMA POOL 775539 14,441 13,871 0.00 2.516 5/1/2034MML Managed Bond Fund FIXED INCOME FED HM LN PC POOL C91176 24,123 21,622 0.00 5.5 5/1/2028MML Managed Bond Fund FIXED INCOME BANK OF AMERICA CORP 662,475 400,000 0.05 7.75 5/14/2038MML Managed Bond Fund FIXED INCOME GENERAL ELECTRIC CO 382,809 298,000 0.03 6.875 1/10/2039MML Managed Bond Fund FIXED INCOME US TREASURY N/B 9,834,446 7,000,000 0.81 3.5 2/15/2039MML Managed Bond Fund FIXED INCOME FED HM LN PC POOL C91239 4,801 4,349 0.00 4.5 3/1/2029MML Managed Bond Fund FIXED INCOME FED HM LN PC POOL G05253 172,757 149,993 0.01 5 2/1/2039MML Managed Bond Fund FIXED INCOME ONCOR ELECTRIC DELIVERY 815,771 495,000 0.07 7.5 9/1/2038

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Managed Bond Fund FIXED INCOME BARCLAYS BANK PLC 3,525,617 3,351,000 0.29 10.179 6/12/2021MML Managed Bond Fund FIXED INCOME TIME WARNER CABLE LLC 1,332,030 985,000 0.11 6.75 6/15/2039MML Managed Bond Fund FIXED INCOME CVS HEALTH CORP 778,116 560,000 0.06 6.125 9/15/2039MML Managed Bond Fund FIXED INCOME REPUBLIC OF COLOMBIA 2,667,600 2,080,000 0.22 6.125 1/18/2041MML Managed Bond Fund FIXED INCOME FNMA TBA 30 YR 3.5 29,728,970 28,200,000 2.45 3.5 10/14/2050MML Managed Bond Fund FIXED INCOME CVS PASS THROUGH TRUST 1,118,664 895,812 0.09 7.507 1/10/2032MML Managed Bond Fund FIXED INCOME FNMA POOL AD6437 413,277 360,572 0.03 5 6/1/2040MML Blend Fund EQUITY EATON CORP PLC 751,553 7,366 0.16 0MML Blend Fund EQUITY ABBVIE INC 5,321,355 60,753 1.10 0MML Blend Fund EQUITY NORWEGIAN CRUISE LINE HOLDIN 18,821 1,100 0.00 0MML Blend Fund EQUITY ZOETIS INC 1,442,026 8,720 0.30 0MML Blend Fund EQUITY L BRANDS INC 69,982 2,200 0.01 0MML Blend Fund EQUITY T MOBILE US INC 371,670 3,250 0.08 0MML Blend Fund EQUITY COTY INC CL A 2,430 900 0.00 0MML Blend Fund EQUITY NEWS CORP CLASS A 12,141 866 0.00 0MML Blend Fund EQUITY NEWS CORP CLASS B 4,194 300 0.00 0MML Blend Fund EQUITY CDW CORP/DE 469,753 3,930 0.10 0MML Blend Fund EQUITY LEIDOS HOLDINGS INC 53,490 600 0.01 0MML Blend Fund EQUITY INTERCONTINENTAL EXCHANGE IN 871,936 8,715 0.18 0MML Blend Fund EQUITY ANTHEM INC 1,242,497 4,626 0.26 0MML Blend Fund EQUITY CROWN CASTLE INTL CORP 281,385 1,690 0.06 0MML Blend Fund EQUITY WALGREENS BOOTS ALLIANCE INC 145,727 4,057 0.03 0MML Blend Fund EQUITY IRON MOUNTAIN INC 261,149 9,748 0.05 0MML Blend Fund EQUITY EQUINIX INC 463,679 610 0.10 0MML Blend Fund EQUITY MEDTRONIC PLC 239,016 2,300 0.05 0MML Blend Fund EQUITY TWITTER INC 57,850 1,300 0.01 0MML Blend Fund EQUITY ALLEGION PLC 161,520 1,633 0.03 0MML Blend Fund EQUITY AMERICAN AIRLINES GROUP INC 27,038 2,200 0.01 0MML Blend Fund EQUITY PENTAIR PLC 115,478 2,523 0.02 0MML Blend Fund EQUITY ARISTA NETWORKS INC 316,603 1,530 0.07 0MML Blend Fund EQUITY SYNCHRONY FINANCIAL 677,803 25,900 0.14 0MML Blend Fund EQUITY CITIZENS FINANCIAL GROUP 149,152 5,900 0.03 0MML Blend Fund EQUITY KEYSIGHT TECHNOLOGIES IN 444,510 4,500 0.09 0MML Blend Fund EQUITY INVESCO LTD 164,441 14,412 0.03 0MML Blend Fund EQUITY DISH NETWORK CORP A 191,598 6,600 0.04 0MML Blend Fund EQUITY DOLLAR TREE INC 232,734 2,548 0.05 0MML Blend Fund EQUITY PHILIP MORRIS INTERNATIONAL 4,295,877 57,286 0.89 0MML Blend Fund EQUITY VISA INC CLASS A SHARES 6,111,483 30,562 1.26 0MML Blend Fund EQUITY NETAPP INC 420,776 9,598 0.09 0MML Blend Fund EQUITY AMERICAN WATER WORKS CO INC 55,054 380 0.01 0MML Blend Fund EQUITY ACTIVISION BLIZZARD INC 1,165,680 14,400 0.24 0MML Blend Fund EQUITY DISCOVERY INC A 167,629 7,700 0.03 0MML Blend Fund EQUITY DISCOVERY INC C 177,243 9,043 0.04 0MML Blend Fund EQUITY AMERICAN INTERNATIONAL GROUP 315,108 11,446 0.07 0MML Blend Fund EQUITY ACCENTURE PLC CL A 2,607,925 11,540 0.54 0MML Blend Fund EQUITY SKYWORKS SOLUTIONS INC 413,220 2,840 0.09 0MML Blend Fund EQUITY CONOCOPHILLIPS 1,117,841 34,039 0.23 0MML Blend Fund EQUITY CENTERPOINT ENERGY INC 79,935 4,131 0.02 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Blend Fund EQUITY CARMAX INC 36,764 400 0.01 0MML Blend Fund EQUITY WYNN RESORTS LTD 574 8 0.00 0MML Blend Fund EQUITY COMCAST CORP CLASS A 3,655,650 79,024 0.75 0MML Blend Fund EQUITY ALTRIA GROUP INC 2,954,376 76,459 0.61 0MML Blend Fund EQUITY INTUITIVE SURGICAL INC 303,683 428 0.06 0MML Blend Fund EQUITY BIOGEN INC 2,201,924 7,762 0.45 0MML Blend Fund EQUITY NRG ENERGY INC 1,186,564 38,600 0.24 0MML Blend Fund EQUITY ASSURANT INC 11,646 96 0.00 0MML Blend Fund EQUITY SALESFORCE.COM INC 257,352 1,024 0.05 0MML Blend Fund EQUITY REGIONS FINANCIAL CORP 308,024 26,715 0.06 0MML Blend Fund EQUITY DOMINO S PIZZA INC 948,374 2,230 0.20 0MML Blend Fund EQUITY EXTRA SPACE STORAGE INC 127,318 1,190 0.03 0MML Blend Fund EQUITY VERISK ANALYTICS INC 504,043 2,720 0.10 0MML Blend Fund EQUITY MERCK + CO. INC. 3,839,175 46,283 0.79 0MML Blend Fund EQUITY DOLLAR GENERAL CORP 1,419,127 6,770 0.29 0MML Blend Fund EQUITY FORTINET INC 682,120 5,790 0.14 0MML Blend Fund EQUITY BERKSHIRE HATHAWAY INC CL B 5,435,506 25,526 1.12 0MML Blend Fund EQUITY STANLEY BLACK + DECKER INC 1,460 9 0.00 0MML Blend Fund EQUITY LYONDELLBASELL INDU CL A 996,729 14,140 0.21 0MML Blend Fund EQUITY E TRADE FINANCIAL CORP 278,328 5,561 0.06 0MML Blend Fund EQUITY NEXTERA ENERGY INC 197,068 710 0.04 0MML Blend Fund EQUITY GARMIN LTD 199,206 2,100 0.04 0MML Blend Fund EQUITY SEAGATE TECHNOLOGY 428,649 8,700 0.09 0MML Blend Fund EQUITY UNITED AIRLINES HOLDINGS INC 52,125 1,500 0.01 0MML Blend Fund EQUITY GENERAL MOTORS CO 775,258 26,200 0.16 0MML Blend Fund EQUITY FLEETCOR TECHNOLOGIES INC 314,292 1,320 0.06 0MML Blend Fund EQUITY MOTOROLA SOLUTIONS INC 400,963 2,557 0.08 0MML Blend Fund EQUITY O REILLY AUTOMOTIVE INC 1,227,856 2,663 0.25 0MML Blend Fund EQUITY KINDER MORGAN INC 178,021 14,438 0.04 0MML Blend Fund EQUITY HCA HEALTHCARE INC 857,798 6,880 0.18 0MML Blend Fund EQUITY TE CONNECTIVITY LTD 195,480 2,000 0.04 0MML Blend Fund EQUITY HUNTINGTON INGALLS INDUSTRIE 156,233 1,110 0.03 0MML Blend Fund EQUITY CITIGROUP INC 1,446,384 33,551 0.30 0MML Blend Fund EQUITY MOSAIC CO/THE 27,405 1,500 0.01 0MML Blend Fund EQUITY PROLOGIS INC 1,301,822 12,938 0.27 0MML Blend Fund EQUITY MARATHON PETROLEUM CORP 143,766 4,900 0.03 0MML Blend Fund EQUITY HOLLYFRONTIER CORP 175,419 8,900 0.04 0MML Blend Fund EQUITY PVH CORP 96,617 1,620 0.02 0MML Blend Fund EQUITY RALPH LAUREN CORP 201,191 2,960 0.04 0MML Blend Fund EQUITY CBRE GROUP INC A 379,846 8,087 0.08 0MML Blend Fund EQUITY XYLEM INC 4,627 55 0.00 0MML Blend Fund EQUITY EXPEDIA GROUP INC 34,567 377 0.01 0MML Blend Fund EQUITY AMERICAN TOWER CORP 2,598,356 10,749 0.54 0MML Blend Fund EQUITY PHILLIPS 66 797,247 15,379 0.16 0MML Blend Fund EQUITY FACEBOOK INC CLASS A 14,365,215 54,850 2.96 0MML Blend Fund EQUITY SERVICENOW INC 761,450 1,570 0.16 0MML Blend Fund EQUITY DUKE ENERGY CORP 911,282 10,290 0.19 0MML Blend Fund EQUITY MONDELEZ INTERNATIONAL INC A 130,699 2,275 0.03 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Blend Fund EQUITY DIAMONDBACK ENERGY INC 74,095 2,460 0.02 0MML Blend Fund EQUITY STARBUCKS CORP 683,408 7,954 0.14 0MML Blend Fund EQUITY RAYMOND JAMES FINANCIAL INC 283,764 3,900 0.06 0MML Blend Fund EQUITY LEGGETT + PLATT INC 3,541 86 0.00 0MML Blend Fund EQUITY VERIZON COMMUNICATIONS INC 6,624,509 111,355 1.37 0MML Blend Fund EQUITY KANSAS CITY SOUTHERN 314,644 1,740 0.06 0MML Blend Fund EQUITY JUNIPER NETWORKS INC 156,714 7,289 0.03 0MML Blend Fund EQUITY QUANTA SERVICES INC 106,407 2,013 0.02 0MML Blend Fund EQUITY ILLUMINA INC 64,907 210 0.01 0MML Blend Fund EQUITY FORD MOTOR CO 199,887 30,013 0.04 0MML Blend Fund EQUITY XCEL ENERGY INC 149,890 2,172 0.03 0MML Blend Fund EQUITY MOODY S CORP 773,900 2,670 0.16 0MML Blend Fund EQUITY CONSTELLATION BRANDS INC A 102,714 542 0.02 0MML Blend Fund EQUITY NASDAQ INC 5,522 45 0.00 0MML Blend Fund EQUITY DAVITA INC 490,775 5,730 0.10 0MML Blend Fund EQUITY EXELON CORP 791,726 22,140 0.16 0MML Blend Fund EQUITY T ROWE PRICE GROUP INC 603,403 4,706 0.12 0MML Blend Fund EQUITY JPMORGAN CHASE + CO 6,039,210 62,732 1.25 0MML Blend Fund EQUITY GLOBAL PAYMENTS INC 201,021 1,132 0.04 0MML Blend Fund EQUITY ALIGN TECHNOLOGY INC 111,302 340 0.02 0MML Blend Fund EQUITY REGENCY CENTERS CORP 148,278 3,900 0.03 0MML Blend Fund EQUITY US BANCORP 874,812 24,402 0.18 0MML Blend Fund EQUITY ALLIANCE DATA SYSTEMS CORP 263,634 6,280 0.05 0MML Blend Fund EQUITY ZIMMER BIOMET HOLDINGS INC 681 5 0.00 0MML Blend Fund EQUITY AMERISOURCEBERGEN CORP 242,978 2,507 0.05 0MML Blend Fund EQUITY CHEVRON CORP 1,939,536 26,938 0.40 0MML Blend Fund EQUITY PRINCIPAL FINANCIAL GROUP 327,355 8,129 0.07 0MML Blend Fund EQUITY ADVANCE AUTO PARTS INC 155,035 1,010 0.03 0MML Blend Fund EQUITY PRUDENTIAL FINANCIAL INC 510,510 8,037 0.11 0MML Blend Fund EQUITY CENTENE CORP 53,664 920 0.01 0MML Blend Fund EQUITY 3M CO 2,471,898 15,432 0.51 0MML Blend Fund EQUITY NOBLE ENERGY INC 10,739 1,256 0.00 0MML Blend Fund EQUITY YUM BRANDS INC 938,108 10,275 0.19 0MML Blend Fund EQUITY NETFLIX INC 1,391,583 2,783 0.29 0MML Blend Fund EQUITY JM SMUCKER CO/THE 97,614 845 0.02 0MML Blend Fund EQUITY DIGITAL REALTY TRUST INC 41,093 280 0.01 0MML Blend Fund EQUITY MARKETAXESS HOLDINGS INC 207,084 430 0.04 0MML Blend Fund EQUITY LAS VEGAS SANDS CORP 419,940 9,000 0.09 0MML Blend Fund EQUITY CELANESE CORP 655,445 6,100 0.14 0MML Blend Fund EQUITY MOLSON COORS BEVERAGE CO B 50,340 1,500 0.01 0MML Blend Fund EQUITY SVB FINANCIAL GROUP 115,498 480 0.02 0MML Blend Fund EQUITY CF INDUSTRIES HOLDINGS INC 469,556 15,290 0.10 0MML Blend Fund EQUITY AMERIPRISE FINANCIAL INC 811,543 5,266 0.17 0MML Blend Fund EQUITY C.H. ROBINSON WORLDWIDE INC 257,519 2,520 0.05 0MML Blend Fund EQUITY UNDER ARMOUR INC CLASS A 2,246 200 0.00 0MML Blend Fund EQUITY AT+T INC 1,822,530 63,926 0.38 0MML Blend Fund EQUITY LIVE NATION ENTERTAINMENT IN 10,776 200 0.00 0MML Blend Fund EQUITY CHIPOTLE MEXICAN GRILL INC 310,928 250 0.06 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Blend Fund EQUITY FIDELITY NATIONAL INFO SERV 132,489 900 0.03 0MML Blend Fund EQUITY TRANSDIGM GROUP INC 513,130 1,080 0.11 0MML Blend Fund EQUITY HESS CORP 124,100 3,032 0.03 0MML Blend Fund EQUITY MASTERCARD INC A 8,461,013 25,020 1.75 0MML Blend Fund EQUITY HANESBRANDS INC 401,625 25,500 0.08 0MML Blend Fund EQUITY WESTERN UNION CO 454,059 21,188 0.09 0MML Blend Fund EQUITY IPG PHOTONICS CORP 8,499 50 0.00 0MML Blend Fund EQUITY TRAVELERS COS INC/THE 443,254 4,097 0.09 0MML Blend Fund EQUITY UDR INC 6,522 200 0.00 0MML Blend Fund EQUITY BROADRIDGE FINANCIAL SOLUTIO 95,040 720 0.02 0MML Blend Fund EQUITY PEOPLE S UNITED FINANCIAL 18,053 1,751 0.00 0MML Blend Fund EQUITY DELTA AIR LINES INC 324,148 10,600 0.07 0MML Blend Fund EQUITY DISCOVER FINANCIAL SERVICES 495,926 8,583 0.10 0MML Blend Fund EQUITY BANK OF NEW YORK MELLON CORP 951,458 27,707 0.20 0MML Blend Fund EQUITY CME GROUP INC 307,850 1,840 0.06 0MML Blend Fund EQUITY CONCHO RESOURCES INC 30,884 700 0.01 0MML Blend Fund EQUITY MSCI INC 274,721 770 0.06 0MML Blend Fund EQUITY BOEING CO/THE 339,114 2,052 0.07 0MML Blend Fund EQUITY COSTCO WHOLESALE CORP 670,950 1,890 0.14 0MML Blend Fund EQUITY INTEL CORP 6,121,587 118,223 1.26 0MML Blend Fund EQUITY JOHNSON + JOHNSON 7,427,921 49,892 1.53 0MML Blend Fund EQUITY ELI LILLY + CO 3,920,162 26,484 0.81 0MML Blend Fund EQUITY MCDONALD S CORP 287,532 1,310 0.06 0MML Blend Fund EQUITY STATE STREET CORP 669,005 11,276 0.14 0MML Blend Fund EQUITY SYNOPSYS INC 562,767 2,630 0.12 0MML Blend Fund EQUITY TARGET CORP 1,589,312 10,096 0.33 0MML Blend Fund EQUITY WASTE MANAGEMENT INC 781,213 6,903 0.16 0MML Blend Fund EQUITY WHIRLPOOL CORP 248,803 1,353 0.05 0MML Blend Fund EQUITY AMERICAN EXPRESS CO 1,176,835 11,739 0.24 0MML Blend Fund EQUITY COCA COLA CO/THE 2,993,303 60,630 0.62 0MML Blend Fund EQUITY MARRIOTT INTERNATIONAL CL A 562,979 6,081 0.12 0MML Blend Fund EQUITY NIKE INC CL B 2,620,522 20,874 0.54 0MML Blend Fund EQUITY ANALOG DEVICES INC 125,145 1,072 0.03 0MML Blend Fund EQUITY CARDINAL HEALTH INC 280,667 5,978 0.06 0MML Blend Fund EQUITY HARLEY DAVIDSON INC 81,031 3,302 0.02 0MML Blend Fund EQUITY INTERPUBLIC GROUP OF COS INC 368,774 22,122 0.08 0MML Blend Fund EQUITY KROGER CO 944,665 27,858 0.19 0MML Blend Fund EQUITY HALLIBURTON CO 203,247 16,867 0.04 0MML Blend Fund EQUITY HERSHEY CO/THE 525,628 3,667 0.11 0MML Blend Fund EQUITY KLA CORP 1,053,752 5,439 0.22 0MML Blend Fund EQUITY KOHLS CORP 158,061 8,530 0.03 0MML Blend Fund EQUITY MAXIM INTEGRATED PRODUCTS 446,226 6,600 0.09 0MML Blend Fund EQUITY PPG INDUSTRIES INC 1,149,749 9,418 0.24 0MML Blend Fund EQUITY QUALCOMM INC 4,322,386 36,730 0.89 0MML Blend Fund EQUITY ROCKWELL AUTOMATION INC 1,093,028 4,953 0.23 0MML Blend Fund EQUITY SOUTHWEST AIRLINES CO 389,363 10,383 0.08 0MML Blend Fund EQUITY TJX COMPANIES INC 256,658 4,612 0.05 0MML Blend Fund EQUITY VULCAN MATERIALS CO 678 5 0.00 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Blend Fund EQUITY WEYERHAEUSER CO 742 26 0.00 0MML Blend Fund EQUITY WILLIAMS COS INC 826,243 42,048 0.17 0MML Blend Fund EQUITY XILINX INC 625,023 5,996 0.13 0MML Blend Fund EQUITY VERISIGN INC 702,840 3,431 0.15 0MML Blend Fund EQUITY HARTFORD FINANCIAL SVCS GRP 189,903 5,152 0.04 0MML Blend Fund EQUITY ELECTRONIC ARTS INC 1,418,470 10,877 0.29 0MML Blend Fund EQUITY AFLAC INC 539,579 14,844 0.11 0MML Blend Fund EQUITY METLIFE INC 1,084,992 29,190 0.22 0MML Blend Fund EQUITY SCHWAB (CHARLES) CORP 685,182 18,912 0.14 0MML Blend Fund EQUITY ADOBE INC 5,492,816 11,200 1.13 0MML Blend Fund EQUITY HORMEL FOODS CORP 158,012 3,232 0.03 0MML Blend Fund EQUITY MCCORMICK + CO NON VTG SHRS 273,875 1,411 0.06 0MML Blend Fund EQUITY UNITEDHEALTH GROUP INC 5,201,571 16,684 1.07 0MML Blend Fund EQUITY AUTODESK INC 535,250 2,317 0.11 0MML Blend Fund EQUITY JACOBS ENGINEERING GROUP INC 76,071 820 0.02 0MML Blend Fund EQUITY LABORATORY CRP OF AMER HLDGS 377 2 0.00 0MML Blend Fund EQUITY CAMPBELL SOUP CO 213,989 4,424 0.04 0MML Blend Fund EQUITY PARKER HANNIFIN CORP 458,907 2,268 0.09 0MML Blend Fund EQUITY VF CORP 154,550 2,200 0.03 0MML Blend Fund EQUITY TYSON FOODS INC CL A 29,799 501 0.01 0MML Blend Fund EQUITY DANAHER CORP 201,549 936 0.04 0MML Blend Fund EQUITY SEALED AIR CORP 2,057 53 0.00 0MML Blend Fund EQUITY REPUBLIC SERVICES INC 31,459 337 0.01 0MML Blend Fund EQUITY AKAMAI TECHNOLOGIES INC 223,954 2,026 0.05 0MML Blend Fund EQUITY BLACKROCK INC 817,148 1,450 0.17 0MML Blend Fund EQUITY AGILENT TECHNOLOGIES INC 309,179 3,063 0.06 0MML Blend Fund EQUITY CORNING INC 264,692 8,167 0.05 0MML Blend Fund EQUITY DOVER CORP 141,167 1,303 0.03 0MML Blend Fund EQUITY EQUIFAX INC 28,556 182 0.01 0MML Blend Fund EQUITY FISERV INC 82,646 802 0.02 0MML Blend Fund EQUITY PACCAR INC 411,220 4,822 0.08 0MML Blend Fund EQUITY MICROCHIP TECHNOLOGY INC 232,340 2,261 0.05 0MML Blend Fund EQUITY NATIONAL OILWELL VARCO INC 9,912 1,094 0.00 0MML Blend Fund EQUITY MORGAN STANLEY 792,795 16,397 0.16 0MML Blend Fund EQUITY PFIZER INC 5,601,925 152,641 1.16 0MML Blend Fund EQUITY WALMART INC 3,121,672 22,312 0.64 0MML Blend Fund EQUITY WATERS CORP 301,347 1,540 0.06 0MML Blend Fund EQUITY WELLS FARGO + CO 811,471 34,516 0.17 0MML Blend Fund EQUITY BAXTER INTERNATIONAL INC 294,418 3,661 0.06 0MML Blend Fund EQUITY H+R BLOCK INC 264,924 16,263 0.05 0MML Blend Fund EQUITY GENUINE PARTS CO 34,642 364 0.01 0MML Blend Fund EQUITY INTL FLAVORS + FRAGRANCES 19,592 160 0.00 0MML Blend Fund EQUITY KIMBERLY CLARK CORP 1,812,527 12,275 0.37 0MML Blend Fund EQUITY MASCO CORP 558,191 10,125 0.12 0MML Blend Fund EQUITY PNC FINANCIAL SERVICES GROUP 1,253,853 11,408 0.26 0MML Blend Fund EQUITY BANK OF AMERICA CORP 3,562,863 147,898 0.74 0MML Blend Fund EQUITY EMERSON ELECTRIC CO 1,217,569 18,569 0.25 0MML Blend Fund EQUITY WW GRAINGER INC 382,457 1,072 0.08 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Blend Fund EQUITY INTL BUSINESS MACHINES CORP 2,048,923 16,840 0.42 0MML Blend Fund CASH US DOLLAR (739,777) (739,777) 0.15 0MML Blend Fund EQUITY EDWARDS LIFESCIENCES CORP 858,065 10,750 0.18 0MML Blend Fund EQUITY ABBOTT LABORATORIES 642,206 5,901 0.13 0MML Blend Fund EQUITY BRISTOL MYERS SQUIBB CO 4,343,472 72,043 0.90 0MML Blend Fund EQUITY ILLINOIS TOOL WORKS 2,002,622 10,365 0.41 0MML Blend Fund EQUITY LOWE S COS INC 5,431,086 32,745 1.12 0MML Blend Fund EQUITY MARSH + MCLENNAN COS 126,514 1,103 0.03 0MML Blend Fund EQUITY NUCOR CORP 137,092 3,056 0.03 0MML Blend Fund EQUITY SYSCO CORP 406,545 6,534 0.08 0MML Blend Fund EQUITY TEXAS INSTRUMENTS INC 4,618,400 32,344 0.95 0MML Blend Fund EQUITY TEXTRON INC 121,695 3,372 0.03 0MML Blend Fund EQUITY CADENCE DESIGN SYS INC 927,681 8,700 0.19 0MML Blend Fund EQUITY OTIS WORLDWIDE CORP 876,751 14,046 0.18 0MML Blend Fund EQUITY AON PLC CLASS A 370,309 1,795 0.08 0MML Blend Fund EQUITY RAYTHEON TECHNOLOGIES CORP 823,858 14,318 0.17 0MML Blend Fund EQUITY OCCIDENTAL PETROLEUM CORP 1,359 453 0.00 0MML Blend Fund EQUITY OMNICOM GROUP 403,277 8,147 0.08 0MML Blend Fund EQUITY ORACLE CORP 4,283,893 71,757 0.88 0MML Blend Fund EQUITY PEPSICO INC 3,427,578 24,730 0.71 0MML Blend Fund EQUITY UNITED PARCEL SERVICE CL B 2,506,115 15,040 0.52 0MML Blend Fund EQUITY SHERWIN WILLIAMS CO/THE 1,757,875 2,523 0.36 0MML Blend Fund EQUITY NEWELL BRANDS INC 78,936 4,600 0.02 0MML Blend Fund EQUITY SNAP ON INC 172,289 1,171 0.04 0MML Blend Fund EQUITY KIMCO REALTY CORP 152,764 13,567 0.03 0MML Blend Fund EQUITY TIFFANY + CO 92,912 802 0.02 0MML Blend Fund EQUITY VORNADO REALTY TRUST 235,060 6,973 0.05 0MML Blend Fund EQUITY ZIONS BANCORP NA 59,638 2,041 0.01 0MML Blend Fund EQUITY AVALONBAY COMMUNITIES INC 310,777 2,081 0.06 0MML Blend Fund EQUITY BOSTON PROPERTIES INC 304,578 3,793 0.06 0MML Blend Fund EQUITY EQUITY RESIDENTIAL 428,913 8,356 0.09 0MML Blend Fund EQUITY HOST HOTELS + RESORTS INC 115,852 10,737 0.02 0MML Blend Fund EQUITY SL GREEN REALTY CORP 208,201 4,490 0.04 0MML Blend Fund EQUITY DUKE REALTY CORP 332,100 9,000 0.07 0MML Blend Fund EQUITY PUBLIC STORAGE 377,065 1,693 0.08 0MML Blend Fund EQUITY SIMON PROPERTY GROUP INC 879,971 13,605 0.18 0MML Blend Fund EQUITY AIR PRODUCTS + CHEMICALS INC 105,740 355 0.02 0MML Blend Fund EQUITY AUTOMATIC DATA PROCESSING 1,012,558 7,259 0.21 0MML Blend Fund EQUITY CATERPILLAR INC 1,507,161 10,105 0.31 0MML Blend Fund EQUITY COLGATE PALMOLIVE CO 2,453,833 31,806 0.51 0MML Blend Fund EQUITY ECOLAB INC 400 2 0.00 0MML Blend Fund EQUITY GENERAL MILLS INC 1,175,744 19,062 0.24 0MML Blend Fund EQUITY GOLDMAN SACHS GROUP INC 980,734 4,880 0.20 0MML Blend Fund EQUITY PAYCHEX INC 467,771 5,864 0.10 0MML Blend Fund EQUITY ROSS STORES INC 112,357 1,204 0.02 0MML Blend Fund EQUITY SCHLUMBERGER LTD 274,338 17,631 0.06 0MML Blend Fund EQUITY ADVANCED MICRO DEVICES 901,890 11,000 0.19 0MML Blend Fund EQUITY AUTOZONE INC 546,425 464 0.11 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Blend Fund EQUITY AVERY DENNISON CORP 244,814 1,915 0.05 0MML Blend Fund EQUITY PULTEGROUP INC 271,861 5,873 0.06 0MML Blend Fund EQUITY THERMO FISHER SCIENTIFIC INC 1,563,422 3,541 0.32 0MML Blend Fund EQUITY MARATHON OIL CORP 29,967 7,327 0.01 0MML Blend Fund EQUITY UNION PACIFIC CORP 2,979,037 15,132 0.61 0MML Blend Fund EQUITY UNITED RENTALS INC 567,125 3,250 0.12 0MML Blend Fund EQUITY VALERO ENERGY CORP 175,013 4,040 0.04 0MML Blend Fund EQUITY COPART INC 462,704 4,400 0.10 0MML Blend Fund EQUITY OLD DOMINION FREIGHT LINE 332,893 1,840 0.07 0MML Blend Fund EQUITY QUEST DIAGNOSTICS INC 23,928 209 0.00 0MML Blend Fund EQUITY REGENERON PHARMACEUTICALS 1,528,199 2,730 0.32 0MML Blend Fund EQUITY HENRY SCHEIN INC 29,390 500 0.01 0MML Blend Fund EQUITY TRACTOR SUPPLY COMPANY 474,455 3,310 0.10 0MML Blend Fund EQUITY ALEXION PHARMACEUTICALS INC 865,091 7,560 0.18 0MML Blend Fund EQUITY AMETEK INC 248,500 2,500 0.05 0MML Blend Fund EQUITY LOCKHEED MARTIN CORP 4,028,273 10,510 0.83 0MML Blend Fund EQUITY APPLIED MATERIALS INC 1,458,844 24,539 0.30 0MML Blend Fund EQUITY CABOT OIL + GAS CORP 538,993 31,048 0.11 0MML Blend Fund EQUITY CERNER CORP 310,847 4,300 0.06 0MML Blend Fund EQUITY CHURCH + DWIGHT CO INC 318,614 3,400 0.07 0MML Blend Fund EQUITY COGNIZANT TECH SOLUTIONS A 614,784 8,856 0.13 0MML Blend Fund EQUITY COOPER COS INC/THE 26,970 80 0.01 0MML Blend Fund EQUITY FLIR SYSTEMS INC 102,244 2,852 0.02 0MML Blend Fund EQUITY FLOWSERVE CORP 51,032 1,870 0.01 0MML Blend Fund EQUITY JACK HENRY + ASSOCIATES INC 315,425 1,940 0.07 0MML Blend Fund EQUITY IDEXX LABORATORIES INC 432,421 1,100 0.09 0MML Blend Fund EQUITY INCYTE CORP 23,332 260 0.00 0MML Blend Fund EQUITY RESMED INC 370,289 2,160 0.08 0MML Blend Fund EQUITY VARIAN MEDICAL SYSTEMS INC 1,204 7 0.00 0MML Blend Fund EQUITY VERTEX PHARMACEUTICALS INC 1,972,870 7,250 0.41 0MML Blend Fund EQUITY WESTERN DIGITAL CORP 19,993 547 0.00 0MML Blend Fund EQUITY WABTEC CORP 30,940 500 0.01 0MML Blend Fund EQUITY ZEBRA TECHNOLOGIES CORP CL A 282,755 1,120 0.06 0MML Blend Fund EQUITY ALEXANDRIA REAL ESTATE EQUIT 19,200 120 0.00 0MML Blend Fund EQUITY AMPHENOL CORP CL A 51,320 474 0.01 0MML Blend Fund EQUITY BALL CORP 41,892 504 0.01 0MML Blend Fund EQUITY ESSEX PROPERTY TRUST INC 317,248 1,580 0.07 0MML Blend Fund EQUITY GILEAD SCIENCES INC 2,768,354 43,810 0.57 0MML Blend Fund EQUITY METTLER TOLEDO INTERNATIONAL 733,970 760 0.15 0MML Blend Fund EQUITY NVR INC 285,818 70 0.06 0MML Blend Fund EQUITY NVIDIA CORP 5,393,799 9,966 1.11 0MML Blend Fund EQUITY UNIVERSAL HEALTH SERVICES B 5,351 50 0.00 0MML Blend Fund EQUITY BECTON DICKINSON AND CO 372,753 1,602 0.08 0MML Blend Fund EQUITY LUMEN TECHNOLOGIES INC 281,794 27,928 0.06 0MML Blend Fund EQUITY CLOROX COMPANY 963,209 4,583 0.20 0MML Blend Fund EQUITY CONAGRA BRANDS INC 277,610 7,774 0.06 0MML Blend Fund EQUITY FRANKLIN RESOURCES INC 109,625 5,387 0.02 0MML Blend Fund EQUITY GENERAL DYNAMICS CORP 419,720 3,032 0.09 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Blend Fund EQUITY HASBRO INC 230,872 2,791 0.05 0MML Blend Fund EQUITY HONEYWELL INTERNATIONAL INC 2,148,490 13,052 0.44 0MML Blend Fund EQUITY PROCTER + GAMBLE CO/THE 4,858,951 34,959 1.00 0MML Blend Fund EQUITY AES CORP 242,439 13,387 0.05 0MML Blend Fund EQUITY AMGEN INC 5,083,454 20,001 1.05 0MML Blend Fund EQUITY APPLE INC 33,129,535 286,068 6.84 0MML Blend Fund EQUITY BEST BUY CO INC 700,237 6,292 0.14 0MML Blend Fund EQUITY CVS HEALTH CORP 1,582,698 27,101 0.33 0MML Blend Fund EQUITY CAPITAL ONE FINANCIAL CORP 255,247 3,552 0.05 0MML Blend Fund EQUITY CISCO SYSTEMS INC 5,260,219 133,542 1.09 0MML Blend Fund EQUITY WALT DISNEY CO/THE 628,589 5,066 0.13 0MML Blend Fund EQUITY EXXON MOBIL CORP 923,374 26,897 0.19 0MML Blend Fund EQUITY GAP INC/THE 11,751 690 0.00 0MML Blend Fund EQUITY GENERAL ELECTRIC CO 129,497 20,786 0.03 0MML Blend Fund EQUITY HOME DEPOT INC 8,344,352 30,047 1.72 0MML Blend Fund EQUITY MICROSOFT CORP 30,010,936 142,685 6.19 0MML Blend Fund EQUITY MICRON TECHNOLOGY INC 723,982 15,417 0.15 0MML Blend Fund EQUITY PROGRESSIVE CORP 1,847,390 19,514 0.38 0MML Blend Fund EQUITY AMAZON.COM INC 22,387,470 7,110 4.62 0MML Blend Fund EQUITY EBAY INC 1,582,642 30,377 0.33 0MML Blend Fund EQUITY TELEFLEX INC 20,425 60 0.00 0MML Blend Fund EQUITY BROWN FORMAN CORP CLASS B 1,130 15 0.00 0MML Blend Fund EQUITY ALLIANT ENERGY CORP 278,910 5,400 0.06 0MML Blend Fund EQUITY BORGWARNER INC 185,952 4,800 0.04 0MML Blend Fund EQUITY EOG RESOURCES INC 649,723 18,078 0.13 0MML Blend Fund EQUITY EDISON INTERNATIONAL 41,994 826 0.01 0MML Blend Fund EQUITY LINCOLN NATIONAL CORP 217,775 6,951 0.04 0MML Blend Fund EQUITY LOEWS CORP 27,209 783 0.01 0MML Blend Fund EQUITY NISOURCE INC 15,686 713 0.00 0MML Blend Fund EQUITY PINNACLE WEST CAPITAL 104,072 1,396 0.02 0MML Blend Fund EQUITY SOUTHERN CO/THE 2,413,983 44,522 0.50 0MML Blend Fund EQUITY UNUM GROUP 146,943 8,731 0.03 0MML Blend Fund EQUITY WEST PHARMACEUTICAL SERVICES 283,147 1,030 0.06 0MML Blend Fund EQUITY DARDEN RESTAURANTS INC 267,364 2,654 0.06 0MML Blend Fund EQUITY MID AMERICA APARTMENT COMM 253,931 2,190 0.05 0MML Blend Fund EQUITY PERKINELMER INC 2,510 20 0.00 0MML Blend Fund EQUITY REALTY INCOME CORP 42,525 700 0.01 0MML Blend Fund EQUITY ROPER TECHNOLOGIES INC 261,958 663 0.05 0MML Blend Fund EQUITY EVEREST RE GROUP LTD 3,951 20 0.00 0MML Blend Fund EQUITY ALASKA AIR GROUP INC 10,989 300 0.00 0MML Blend Fund EQUITY ALLSTATE CORP 1,085,905 11,535 0.22 0MML Blend Fund EQUITY AMEREN CORPORATION 36,377 460 0.01 0MML Blend Fund EQUITY AMERICAN ELECTRIC POWER 203,099 2,485 0.04 0MML Blend Fund EQUITY APACHE CORP 14,404 1,521 0.00 0MML Blend Fund EQUITY ARCHER DANIELS MIDLAND CO 36,820 792 0.01 0MML Blend Fund EQUITY CMS ENERGY CORP 67,735 1,103 0.01 0MML Blend Fund EQUITY CSX CORP 1,538,410 19,807 0.32 0MML Blend Fund EQUITY CINCINNATI FINANCIAL CORP 3,041 39 0.00 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Blend Fund EQUITY CONSOLIDATED EDISON INC 99,740 1,282 0.02 0MML Blend Fund EQUITY CUMMINS INC 1,386,265 6,565 0.29 0MML Blend Fund EQUITY DR HORTON INC 359,016 4,747 0.07 0MML Blend Fund EQUITY DTE ENERGY COMPANY 35,662 310 0.01 0MML Blend Fund EQUITY DEVON ENERGY CORP 60,989 6,447 0.01 0MML Blend Fund EQUITY DOMINION ENERGY INC 106,319 1,347 0.02 0MML Blend Fund EQUITY EASTMAN CHEMICAL CO 497,624 6,370 0.10 0MML Blend Fund EQUITY ENTERGY CORP 83,553 848 0.02 0MML Blend Fund EQUITY FMC CORP 391,867 3,700 0.08 0MML Blend Fund EQUITY FIRSTENERGY CORP 318,107 11,080 0.07 0MML Blend Fund EQUITY HUMANA INC 1,301,270 3,144 0.27 0MML Blend Fund EQUITY INTERNATIONAL PAPER CO 960,271 23,687 0.20 0MML Blend Fund EQUITY KEYCORP 103,362 8,664 0.02 0MML Blend Fund EQUITY LAM RESEARCH CORP 2,051,210 6,183 0.42 0MML Blend Fund EQUITY VENTAS INC 345,121 8,225 0.07 0MML Blend Fund EQUITY GARTNER INC 13,745 110 0.00 0MML Blend Fund EQUITY F5 NETWORKS INC 171,878 1,400 0.04 0MML Blend Fund EQUITY INTUIT INC 2,019,240 6,190 0.42 0MML Blend Fund EQUITY HUNTINGTON BANCSHARES INC 62,356 6,800 0.01 0MML Blend Fund EQUITY STRYKER CORP 870,987 4,180 0.18 0MML Blend Fund EQUITY ESTEE LAUDER COMPANIES CL A 342,653 1,570 0.07 0MML Blend Fund EQUITY CITRIX SYSTEMS INC 436,128 3,167 0.09 0MML Blend Fund EQUITY MCKESSON CORP 609,868 4,095 0.13 0MML Blend Fund EQUITY CINTAS CORP 791,470 2,378 0.16 0MML Blend Fund EQUITY ROBERT HALF INTL INC 557,246 10,526 0.11 0MML Blend Fund EQUITY FASTENAL CO 417,714 9,264 0.09 0MML Blend Fund EQUITY LENNAR CORP A 751,456 9,200 0.16 0MML Blend Fund EQUITY NORFOLK SOUTHERN CORP 779,566 3,643 0.16 0MML Blend Fund EQUITY NORTHROP GRUMMAN CORP 832,263 2,638 0.17 0MML Blend Fund EQUITY OCCIDENTAL PETROLEUM CORP 36,326 3,629 0.01 0MML Blend Fund EQUITY PPL CORP 1,205,893 44,318 0.25 0MML Blend Fund EQUITY PIONEER NATURAL RESOURCES CO 86 1 0.00 0MML Blend Fund EQUITY PUBLIC SERVICE ENTERPRISE GP 544,927 9,924 0.11 0MML Blend Fund EQUITY EVERSOURCE ENERGY 67,843 812 0.01 0MML Blend Fund EQUITY MYLAN NV 275,052 18,547 0.06 0MML Blend Fund EQUITY MONSTER BEVERAGE CORP 673,680 8,400 0.14 0MML Blend Fund EQUITY WESTROCK CO 259,404 7,467 0.05 0MML Blend Fund EQUITY WEC ENERGY GROUP INC 52,520 542 0.01 0MML Blend Fund EQUITY KRAFT HEINZ CO/THE 148,492 4,958 0.03 0MML Blend Fund EQUITY PAYPAL HOLDINGS INC 444,697 2,257 0.09 0MML Blend Fund EQUITY NIELSEN HOLDINGS PLC 48,212 3,400 0.01 0MML Blend Fund EQUITY WELLTOWER INC 165,270 3,000 0.03 0MML Blend Fund EQUITY ALPHABET INC CL C 7,672,782 5,221 1.58 0MML Blend Fund EQUITY ALPHABET INC CL A 8,969,472 6,120 1.85 0MML Blend Fund EQUITY HEWLETT PACKARD ENTERPRISE 94,393 10,074 0.02 0MML Blend Fund EQUITY HP INC 836,965 44,074 0.17 0MML Blend Fund EQUITY CHUBB LTD 128,661 1,108 0.03 0MML Blend Fund EQUITY DENTSPLY SIRONA INC 2,449 56 0.00 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Blend Fund EQUITY CORTEVA INC 77,960 2,706 0.02 0MML Blend Fund EQUITY AMCOR PLC 308,295 27,900 0.06 0MML Blend Fund EQUITY DUPONT DE NEMOURS INC 194,513 3,506 0.04 0MML Blend Fund EQUITY L3HARRIS TECHNOLOGIES INC 197,184 1,161 0.04 0MML Blend Fund EQUITY XEROX HOLDINGS CORP 107,665 5,736 0.02 0MML Blend Fund EQUITY GLOBE LIFE INC 262,232 3,282 0.05 0MML Blend Fund EQUITY HEALTHPEAK PROPERTIES INC 25,385 935 0.01 0MML Blend Fund EQUITY NORTONLIFELOCK INC 374,182 17,955 0.08 0MML Blend Fund EQUITY BRISTOL MYERS SQUIBB CO 57,546 25,576 0.01 0MML Blend Fund EQUITY VIACOMCBS INC CLASS B 135,652 4,843 0.03 0MML Blend Fund EQUITY TRUIST FINANCIAL CORP 264,219 6,944 0.05 0MML Blend Fund EQUITY INGERSOLL RAND INC 19,366 544 0.00 0MML Blend Fund EQUITY HOWMET AEROSPACE INC 90,422 5,408 0.02 0MML Blend Fund EQUITY TRANE TECHNOLOGIES PLC 495,913 4,090 0.10 0MML Blend Fund EQUITY CARRIER GLOBAL CORP 870,176 28,493 0.18 0MML Blend Fund EQUITY UNDER ARMOUR INC CLASS C 2,952 300 0.00 0MML Blend Fund EQUITY S+P GLOBAL INC 2,087,153 5,788 0.43 0MML Blend Fund EQUITY CHARTER COMMUNICATIONS INC A 1,268,035 2,031 0.26 0MML Blend Fund EQUITY FORTIVE CORP 36,428 478 0.01 0MML Blend Fund EQUITY IHS MARKIT LTD 510,315 6,500 0.11 0MML Blend Fund EQUITY JOHNSON CONTROLS INTERNATION 104,780 2,565 0.02 0MML Blend Fund EQUITY LAMB WESTON HOLDINGS INC 311,469 4,700 0.06 0MML Blend Fund EQUITY HILTON WORLDWIDE HOLDINGS IN 1,254,204 14,700 0.26 0MML Blend Fund EQUITY TECHNIPFMC PLC 252 40 0.00 0MML Blend Fund EQUITY DXC TECHNOLOGY CO 135,285 7,579 0.03 0MML Blend Fund EQUITY BAKER HUGHES CO 412 31 0.00 0MML Blend Fund EQUITY TAPESTRY INC 97,219 6,220 0.02 0MML Blend Fund EQUITY BOOKING HOLDINGS INC 2,584,837 1,511 0.53 0MML Blend Fund EQUITY BROADCOM INC 1,992,466 5,469 0.41 0MML Blend Fund EQUITY JEFFERIES FINANCIAL GROUP IN 666 37 0.00 0MML Blend Fund EQUITY EVERGY INC 772,464 15,200 0.16 0MML Blend Fund EQUITY LINDE PLC 206,221 866 0.04 0MML Blend Fund EQUITY CIGNA CORP 947,510 5,593 0.20 0MML Blend Fund EQUITY APARTMENT INVT + MGMT CO A 2,765 82 0.00 0MML Blend Fund EQUITY DOW INC 240,237 5,106 0.05 0MML Blend Fund EQUITY FOX CORP CLASS A 406,930 14,622 0.08 0MML Blend Fund EQUITY FOX CORP CLASS B 75,519 2,700 0.02 0MML Blend Fund EQUITY NORTHERN TRUST CORP 269,698 3,459 0.06 0MML Blend Fund EQUITY NORDSTROM INC 122,871 10,308 0.03 0MML Blend Fund EQUITY KELLOGG CO 292,464 4,528 0.06 0MML Blend Fund EQUITY M + T BANK CORP 234,369 2,545 0.05 0MML Blend Fund EQUITY PACKAGING CORP OF AMERICA 474,368 4,350 0.10 0MML Blend Fund EQUITY EXPEDITORS INTL WASH INC 418,746 4,626 0.09 0MML Blend Fund EQUITY NEWMONT CORP 1,597,037 25,170 0.33 0MML Blend Fund EQUITY ROYAL CARIBBEAN CRUISES LTD 39,485 610 0.01 0MML Blend Fund EQUITY FIFTH THIRD BANCORP 252,024 11,821 0.05 0MML Blend Fund EQUITY FREEPORT MCMORAN INC 60,433 3,864 0.01 0MML Blend Fund EQUITY COMERICA INC 222,653 5,821 0.05 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Blend Fund EQUITY SEMPRA ENERGY 1,351,790 11,421 0.28 0MML Blend Fund FIXED INCOME BANK 446,747 409,000 0.15 3.455 11/15/2062MML Blend Fund FIXED INCOME FORD MOTOR CREDIT CO LLC 313,565 320,000 0.11 3.087 1/9/2023MML Blend Fund FIXED INCOME ATHENE GLOBAL FUNDING 649,381 630,000 0.22 2.5 1/14/2025MML Blend Fund FIXED INCOME ENERGY TRANSFER OPERATNG 184,800 240,000 0.06 6.75 12/31/2099MML Blend Fund FIXED INCOME AVOLON HOLDINGS FNDG LTD 276,561 310,000 0.09 3.25 2/15/2027MML Blend Fund FIXED INCOME EQT CORP 437,838 395,000 0.15 7.875 2/1/2025MML Blend Fund FIXED INCOME CAPITAL AUTOMOTIVE REIT 119,641 116,635 0.04 3.25 2/15/2050MML Blend Fund FIXED INCOME OXFORD FINANCE FUNDING TRUST 358,046 353,000 0.12 3.101 2/15/2028MML Blend Fund FIXED INCOME GNMA II POOL MA6656 2,531,567 2,412,332 0.86 3 5/20/2050MML Blend Fund FIXED INCOME APOLLO AVIATION SECURITIZATION 327,357 355,277 0.11 3.351 1/16/2040MML Blend Fund FIXED INCOME MKT 2020 525M MORTGAGE TRUST 198,818 213,000 0.07 2.9406 2/12/2040MML Blend Fund FIXED INCOME MKT 2020 525M MORTGAGE TRUST 106,582 109,000 0.04 2.9406 2/12/2040MML Blend Fund FIXED INCOME CARLISLE COS INC 346,526 326,000 0.12 2.75 3/1/2030MML Blend Fund FIXED INCOME MFT TRUST 230,560 227,000 0.08 3.4767 2/10/2042MML Blend Fund FIXED INCOME LUNAR AIRCRAFT 2020 1 LIMITED 199,781 215,661 0.07 3.376 2/15/2045MML Blend Fund FIXED INCOME MFT TRUST 212,028 205,000 0.07 3.358 2/10/2042MML Blend Fund FIXED INCOME KLA CORP 433,174 410,000 0.15 3.3 3/1/2050MML Blend Fund FIXED INCOME GNMA II POOL MA6710 2,552,603 2,427,318 0.87 3 6/20/2050MML Blend Fund FIXED INCOME BAT CAPITAL CORP 258,127 225,000 0.09 4.7 4/2/2027MML Blend Fund FIXED INCOME BROOKFIELD FINANCE INC 852,230 730,000 0.29 4.35 4/15/2030MML Blend Fund FIXED INCOME NEW YORK LIFE INSURANCE 140,928 125,000 0.05 3.75 5/15/2050MML Blend Fund FIXED INCOME BANK OF AMERICA CORP 329,816 310,000 0.11 2.592 4/29/2031MML Blend Fund FIXED INCOME AMCOR FINANCE USA INC 629,393 565,000 0.21 3.625 4/28/2026MML Blend Fund FIXED INCOME US TREASURY N/B 2,414,284 2,400,000 0.82 0.375 4/30/2025MML Blend Fund FUTURE US 10YR ULTRA FUT DEC20 - (1,200,000) 0.00 0 12/21/2020MML Blend Fund FIXED INCOME VEREIT OPERATING PARTNER 636,110 635,000 0.22 3.1 12/15/2029MML Blend Fund FIXED INCOME HERTZ VEHICLE FINANCING LLC 490,782 493,000 0.17 3.03 12/26/2025MML Blend Fund FIXED INCOME HERTZ VEHICLE FINANCING LLC 488,547 500,000 0.17 3.43 12/26/2025MML Blend Fund FIXED INCOME SANTANDER REVOLVING AUTO LOAN 127,571 126,000 0.04 3 1/26/2032MML Blend Fund FIXED INCOME SANTANDER REVOLVING AUTO LOAN 262,051 263,000 0.09 3.45 1/26/2032MML Blend Fund FIXED INCOME SANTANDER REVOLVING AUTO LOAN 214,644 204,000 0.07 2.8 1/26/2032MML Blend Fund FIXED INCOME DIAMONDBACK ENERGY INC 250,823 250,000 0.09 3.25 12/1/2026MML Blend Fund FIXED INCOME PLANET FITNESS MASTER ISSUER L 493,809 525,033 0.17 3.858 12/5/2049MML Blend Fund FIXED INCOME CBAM CLO MANAGEMENT 250,132 250,000 0.08 2.375 1/15/2031MML Blend Fund FIXED INCOME AXIS SPECIALTY FINANCE 299,715 300,000 0.10 4.9 1/15/2040MML Blend Fund FIXED INCOME BROADRIDGE FINANCIAL SOL 477,748 441,000 0.16 2.9 12/1/2029MML Blend Fund FIXED INCOME APOLLO MANAGEMENT HOLDIN 184,930 185,000 0.06 4.95 1/14/2050MML Blend Fund FIXED INCOME CARVANA AUTO RECEIVABLES TRUST 369,333 359,000 0.13 3.07 7/15/2025MML Blend Fund FIXED INCOME BANK 393,669 397,000 0.13 3.63452 11/15/2062MML Blend Fund FIXED INCOME CARLYLE GLOBAL MARKET STRATEGI 712,755 720,000 0.24 2.07175 1/20/2031MML Blend Fund FIXED INCOME VOYA FINANCIAL INC 180,169 180,000 0.06 4.7 1/23/2048MML Blend Fund FIXED INCOME SEQUOIA MORTGAGE TRUST 37,754 37,041 0.01 4 2/25/2049MML Blend Fund FIXED INCOME EQUITABLE HOLDINGS INC 265,957 225,000 0.09 5 4/20/2048MML Blend Fund FIXED INCOME NAVIENT STUDENT LOAN TRUST 847,746 850,000 0.29 1.04813 12/27/2067MML Blend Fund FIXED INCOME WELLS FARGO MORTGAGE BACKED SE 164,158 160,774 0.06 4 11/25/2048MML Blend Fund FIXED INCOME BROOKFIELD FINANCE INC 516,622 433,000 0.18 4.85 3/29/2029MML Blend Fund FIXED INCOME KKR FINANCIAL CLO LTD 297,050 300,000 0.10 1.63175 4/20/2032

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Blend Fund FIXED INCOME CAMB COMMERCIAL MORTGAGE TRUST 219,646 224,629 0.07 1.90238 12/15/2037MML Blend Fund FIXED INCOME CROWN CASTLE INTL CORP 93,433 71,000 0.03 5.2 2/15/2049MML Blend Fund FIXED INCOME SOCIAL PROFESSIONAL LOAN PROGR 393,538 1,661,200 0.13 0.01 6/15/2048MML Blend Fund FIXED INCOME BANK 209,803 176,250 0.07 4.267 2/15/2052MML Blend Fund FIXED INCOME BANK 153,020 136,855 0.05 4.438 2/15/2052MML Blend Fund FIXED INCOME AVIS BUDGET RENTAL CAR FUNDING 308,852 305,000 0.10 4.53 3/20/2023MML Blend Fund FIXED INCOME FANNIE MAE CAS 335,926 338,557 0.11 2.59813 7/25/2031MML Blend Fund FIXED INCOME NAVIENT STUDENT LOAN TRUST 289,699 284,000 0.10 3.9 1/15/2043MML Blend Fund FIXED INCOME DEEPHAVEN RESIDENTIAL MORTGAGE 140,863 139,333 0.05 3.948 1/25/2059MML Blend Fund FIXED INCOME WELLS FARGO COMMERCIAL MORTGAG 341,300 291,000 0.12 4.244 3/15/2052MML Blend Fund FIXED INCOME STORE CAPITAL CORP 343,137 320,000 0.12 4.625 3/15/2029MML Blend Fund FIXED INCOME COLLEGE AVE STUDENT LOANS 267,250 270,000 0.09 4.46 12/28/2048MML Blend Fund FIXED INCOME FREDDIE MAC STACR 247,942 253,097 0.08 2.19813 7/25/2049MML Blend Fund FIXED INCOME KKR FINANCIAL CLO LTD 250,216 250,000 0.08 2.325 7/15/2032MML Blend Fund FIXED INCOME JBS USA/FOOD/FINANCE 543,147 499,000 0.18 5.5 1/15/2030MML Blend Fund FIXED INCOME IMPERIAL BRANDS FIN PLC 683,489 631,000 0.23 3.875 7/26/2029MML Blend Fund FIXED INCOME GLOBAL AIR LEASE CO LTD 187,755 336,781 0.06 6.5 9/15/2024MML Blend Fund FIXED INCOME MPLX LP 245,666 300,000 0.08 6.875 12/31/2099MML Blend Fund FIXED INCOME CITIGROUP COMMERCIAL MORTGAGE 238,345 241,000 0.08 3.5015 8/10/2056MML Blend Fund FIXED INCOME SOCIAL PROFESSIONAL LOAN PROGR 663,601 646,000 0.23 3.05 11/16/2048MML Blend Fund FIXED INCOME US TREASURY N/B 2,253,230 1,890,000 0.76 2.25 8/15/2049MML Blend Fund FIXED INCOME DIAMOND RESORTS OWNER TRUST 521,203 512,552 0.18 2.89 2/20/2032MML Blend Fund FIXED INCOME BLACKROCK TCP CAP CORP 863,617 850,000 0.29 3.9 8/23/2024MML Blend Fund FIXED INCOME BAT CAPITAL CORP 119,466 110,000 0.04 4.758 9/6/2049MML Blend Fund FIXED INCOME WILLIS NORTH AMERICA INC 193,964 180,000 0.07 2.95 9/15/2029MML Blend Fund FIXED INCOME CARLYLE FINANCE SUB LLC 400,390 370,000 0.14 3.5 9/19/2029MML Blend Fund FIXED INCOME SPIRIT REALTY LP 119,310 120,000 0.04 3.4 1/15/2030MML Blend Fund FIXED INCOME SPIRIT REALTY LP 562,120 555,000 0.19 3.2 1/15/2027MML Blend Fund FIXED INCOME SBA TOWER TRUST 1,391,303 1,300,000 0.47 2.836 1/15/2050MML Blend Fund FIXED INCOME SERVICE PROPERTIES TRUST 227,238 265,000 0.08 4.95 10/1/2029MML Blend Fund FIXED INCOME MARKEL CORP 143,535 130,000 0.05 3.35 9/17/2029MML Blend Fund FIXED INCOME ONEMAIN FINANCIAL ISSUANCE TRU 1,928,911 1,810,000 0.65 3.14 10/14/2036MML Blend Fund FIXED INCOME OCCIDENTAL PETROLEUM COR 213,125 250,000 0.07 6.45 9/15/2036MML Blend Fund FIXED INCOME OCCIDENTAL PETROLEUM COR 221,341 257,000 0.08 6.6 3/15/2046MML Blend Fund FIXED INCOME NELNET STUDENT LOAN TRUST 1,549,799 1,492,023 0.53 2.53 10/25/2067MML Blend Fund FIXED INCOME OAK HILL CREDIT PARTNERS 248,555 250,000 0.08 1.58775 10/22/2032MML Blend Fund FIXED INCOME OAK HILL CREDIT PARTNERS 249,443 250,000 0.08 2.90775 10/22/2032MML Blend Fund FIXED INCOME WAVE USA 833,949 899,069 0.28 3.597 9/15/2044MML Blend Fund FIXED INCOME MACH I 417,992 459,551 0.14 3.474 10/15/2039MML Blend Fund FIXED INCOME TRINITY RAIL LEASING L.P. 712,964 731,000 0.24 3.1 10/18/2049MML Blend Fund FIXED INCOME BX COMMERCIAL MORTGAGE TRUST 2 444,655 449,967 0.15 2.15238 10/15/2036MML Blend Fund FIXED INCOME BX COMMERCIAL MORTGAGE TRUST 2 367,721 371,175 0.12 1.95238 10/15/2036MML Blend Fund FIXED INCOME GOODGREEN TRUST 706,271 696,890 0.24 2.76 10/15/2054MML Blend Fund FIXED INCOME ELMWOOD CLO III LTD 250,546 250,000 0.09 2.225 10/15/2032MML Blend Fund FIXED INCOME LEASEPLAN CORPORATION NV 356,046 345,000 0.12 2.875 10/24/2024MML Blend Fund FIXED INCOME ASCENTIUM EQUIPMENT RECEIVABLE 828,708 827,000 0.28 3.78 5/10/2027MML Blend Fund FIXED INCOME HORIZON AIRCRAFT FINANCE III L 485,231 529,246 0.16 3.425 11/15/2039MML Blend Fund FIXED INCOME FLATIRON CLO LTD 250,055 250,000 0.08 2.18013 11/16/2032

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Blend Fund FIXED INCOME ARES CLO LTD 500,203 500,000 0.17 3.125 10/15/2032MML Blend Fund FIXED INCOME FALCON AEROSPACE LTD 430,599 472,294 0.15 3.597 9/15/2039MML Blend Fund FIXED INCOME SIXTH STREET SPECIALTY 815,506 805,000 0.28 3.875 11/1/2024MML Blend Fund FIXED INCOME HYUNDAI CAPITAL AMERICA 398,136 385,000 0.14 2.85 11/1/2022MML Blend Fund FIXED INCOME COMCAST CORP 355,843 315,000 0.12 3.45 2/1/2050MML Blend Fund FIXED INCOME CPT MORTGAGE TRUST 224,355 225,000 0.08 3.096693 11/13/2039MML Blend Fund FIXED INCOME CPT MORTGAGE TRUST 319,064 338,000 0.11 3.096693 11/13/2039MML Blend Fund FIXED INCOME NATIONAL OILWELL VARCO I 373,939 385,000 0.13 3.6 12/1/2029MML Blend Fund FIXED INCOME DOMINOS PIZZA MASTER ISSUER LL 273,945 258,050 0.09 3.668 10/25/2049MML Blend Fund FIXED INCOME MORGAN STANLEY CAPITAL I TRUST 587,506 500,000 0.20 4.272 3/15/2052MML Blend Fund FIXED INCOME SMB PRIVATE EDUCATION LOAN TRU 124,410 126,000 0.04 1.02238 7/15/2036MML Blend Fund FIXED INCOME ONEMAIN DIRECT AUTO RECEIVABLE 445,635 424,000 0.15 3.95 11/14/2028MML Blend Fund FIXED INCOME NAVIENT STUDENT LOAN TRUST 782,445 750,000 0.27 4.04 12/15/2059MML Blend Fund FIXED INCOME DB MASTER FINANCE LLC 438,723 414,810 0.15 4.021 5/20/2049MML Blend Fund FIXED INCOME DB MASTER FINANCE LLC 410,160 375,210 0.14 4.352 5/20/2049MML Blend Fund FIXED INCOME BANK 173,636 150,000 0.06 4.128 4/15/2052MML Blend Fund FIXED INCOME ENERGY TRANSFER OPERATNG 220,198 200,000 0.07 5.875 1/15/2024MML Blend Fund FIXED INCOME MARS INC 502,391 415,000 0.17 3.95 4/1/2049MML Blend Fund FIXED INCOME FCI FUNDING, LLC 75,955 74,651 0.03 3.63 2/18/2031MML Blend Fund FIXED INCOME JBS USA/FOOD/FINANCE 144,296 130,000 0.05 6.5 4/15/2029MML Blend Fund FIXED INCOME TRINITY RAIL LEASING L.P. 861,103 826,615 0.29 3.82 4/17/2049MML Blend Fund FIXED INCOME ELMWOOD CLO II LTD. 450,174 450,000 0.15 1.72175 4/20/2031MML Blend Fund FIXED INCOME SAUDI ARABIAN OIL CO 568,996 495,000 0.19 4.25 4/16/2039MML Blend Fund FIXED INCOME CASTLELAKE AIRCRAFT SECURITIZA 307,720 332,506 0.10 3.967 4/15/2039MML Blend Fund FIXED INCOME STORE MASTER FUNDING LLC 665,058 655,559 0.23 3.65 11/20/2049MML Blend Fund FIXED INCOME JACKSON PARK TRUST 516,208 500,000 0.18 3.131 10/14/2039MML Blend Fund FIXED INCOME GENPACT LUXEMBOURG SARL 806,336 770,000 0.27 3.375 12/1/2024MML Blend Fund FIXED INCOME FREDDIE MAC STACR 651,094 650,000 0.22 1.64813 6/25/2050MML Blend Fund FIXED INCOME SBA TOWER TRUST 381,285 373,000 0.13 1.884 7/15/2050MML Blend Fund FIXED INCOME BRISTOL MYERS SQUIBB CO 264,143 200,000 0.09 4.35 11/15/2047MML Blend Fund FIXED INCOME CIGNA CORP 244,347 195,000 0.08 4.8 7/15/2046MML Blend Fund FIXED INCOME CF HIPPOLYTA ISSUER LLC 333,729 330,000 0.11 1.69 7/15/2060MML Blend Fund FIXED INCOME CF HIPPOLYTA ISSUER LLC 130,236 128,000 0.04 2.28 7/15/2060MML Blend Fund CASH EQUIVALENT HARLEY-DAVIDSON FND CP 1,999,779 2,000,000 0.68 0 10/19/2020MML Blend Fund CASH EQUIVALENT BPCE 2,999,778 3,000,000 1.02 0 10/28/2020MML Blend Fund FIXED INCOME AT+T INC 165,312 165,000 0.06 1.65 2/1/2028MML Blend Fund CASH EQUIVALENT DUKE ENERGY CORP 1,999,990 2,000,000 0.68 0 10/2/2020MML Blend Fund FIXED INCOME ALPHABET INC 189,116 200,000 0.06 2.25 8/15/2060MML Blend Fund FIXED INCOME SIERRA RECEIVABLES FUNDING CO 237,495 237,692 0.08 2.32 7/20/2037MML Blend Fund FIXED INCOME PRUDENTIAL FINANCIAL INC 86,726 85,000 0.03 3.7 10/1/2050MML Blend Fund CASH EQUIVALENT AMERICAN HONDA FINAN 2,998,929 3,000,000 1.02 0 11/19/2020MML Blend Fund FIXED INCOME STACK INFRASTRUCTURE ISSUER LL 211,400 210,000 0.07 1.893 8/25/2045MML Blend Fund FIXED INCOME TRITON CONTAINER FINANCE LLC 750,965 750,000 0.25 2.11 9/20/2045MML Blend Fund CASH EQUIVALENT NRW. BANK 2,999,660 3,000,000 1.02 0 11/3/2020MML Blend Fund CASH EQUIVALENT KEURIG DR PEPPER 2,999,810 3,000,000 1.02 0 10/13/2020MML Blend Fund CASH EQUIVALENT AVANGRID INC 1,999,188 2,000,000 0.68 0 12/7/2020MML Blend Fund CASH EQUIVALENT DOMINION RESOURCES 2,999,810 3,000,000 1.02 0 10/13/2020MML Blend Fund CASH EQUIVALENT BEMIS COMPANY INC. 999,981 1,000,000 0.34 0 10/5/2020

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Blend Fund FIXED INCOME ENTERGY ARKANSAS LLC 428,910 425,000 0.15 2.65 6/15/2051MML Blend Fund FIXED INCOME TAL ADVANTAGE VII LLC 1,101,966 1,100,000 0.37 2.05 9/20/2045MML Blend Fund CASH EQUIVALENT SUNCOR ENERGY INC 1,999,382 2,000,000 0.68 0 11/23/2020MML Blend Fund FIXED INCOME NUTRITION + BIOSCIENCES 180,816 180,000 0.06 1.832 10/15/2027MML Blend Fund FIXED INCOME SMITHFIELD FOODS INC 225,486 225,000 0.08 3 10/15/2030MML Blend Fund CASH EQUIVALENT SPIRE INC 1,999,874 2,000,000 0.68 0 10/13/2020MML Blend Fund FIXED INCOME AT+T INC 552,057 571,000 0.19 3.5 9/15/2053MML Blend Fund FIXED INCOME DELTA AIR LINES/SKYMILES 241,310 235,000 0.08 4.5 10/20/2025MML Blend Fund FIXED INCOME AT+T INC 1,083,535 1,118,000 0.37 3.55 9/15/2055MML Blend Fund CASH EQUIVALENT BEMIS COMPANY INC. 1,999,850 2,000,000 0.68 0 10/15/2020MML Blend Fund CASH EQUIVALENT SPIRE INC 999,925 1,000,000 0.34 0 10/15/2020MML Blend Fund FIXED INCOME BROWN + BROWN INC 145,892 145,000 0.05 2.375 3/15/2031MML Blend Fund FIXED INCOME DISCOVERY COMMUNICATIONS 196,969 194,000 0.07 4 9/15/2055MML Blend Fund CASH EQUIVALENT SOCIETE GENERALE 999,983 1,000,000 0.34 0 10/6/2020MML Blend Fund CASH EQUIVALENT NUTRIEN LTD 2,998,463 3,000,000 1.02 0 12/21/2020MML Blend Fund FIXED INCOME ADVANCE AUTO PARTS 74,777 75,000 0.03 1.75 10/1/2027MML Blend Fund FIXED INCOME BAT CAPITAL CORP 175,868 175,000 0.06 2.259 3/25/2028MML Blend Fund FIXED INCOME VANTAGE DATA CENTERS LLC 300,137 300,000 0.10 1.992 9/15/2045MML Blend Fund FIXED INCOME BM1176213 CDS USD R V 03MEVENT 1,000,000 1,000,000 0.34 1 12/20/2025MML Blend Fund FIXED INCOME BM1176213 CDS USD P F 1.00000 (1,020,841) (1,000,000) 0.35 1 12/20/2025MML Blend Fund FIXED INCOME BM1175876 CDS USD R V 03MEVENT 1,100,000 1,100,000 0.37 1 12/20/2025MML Blend Fund FIXED INCOME BM1175876 CDS USD P F 1.00000 (1,122,925) (1,100,000) 0.38 1 12/20/2025MML Blend Fund CASH EQUIVALENT AMERICAN ELEC PWR INC 999,859 1,000,000 0.34 0 10/27/2020MML Blend Fund CASH EQUIVALENT DUKE ENERGY CORP 999,356 1,000,000 0.34 0 1/5/2021MML Blend Fund FIXED INCOME BPCE SA 946,519 945,000 0.32 1 10/6/2026MML Blend Fund CASH EQUIVALENT FIXED INC CLEARING CORP.REPO 2,957,601 2,957,601 1.00 0 10/1/2020MML Blend Fund FIXED INCOME TEXTAINER MARINE CONTAINERS LI 108,173 108,173 0.04 3.96 4/20/2044MML Blend Fund FIXED INCOME MARATHON PETROLEUM CORP 86,144 85,000 0.03 4.5 4/1/2048MML Blend Fund FIXED INCOME CLI FUNDING LLC 377,119 370,456 0.13 3.71 5/18/2044MML Blend Fund FIXED INCOME REINSURANCE GRP OF AMER 371,015 325,000 0.13 3.9 5/15/2029MML Blend Fund FIXED INCOME KNDL MORTGAGE TRUST 322,436 326,000 0.11 1.95238 5/15/2036MML Blend Fund FIXED INCOME ANHEUSER BUSCH CO/INBEV 1,017,249 825,000 0.35 4.9 2/1/2046MML Blend Fund FIXED INCOME ENSTAR GROUP LTD 392,195 350,000 0.13 4.95 6/1/2029MML Blend Fund FIXED INCOME PIONEER AIRCRAFT FINANCE LIMIT 310,944 335,979 0.11 3.967 6/15/2044MML Blend Fund FIXED INCOME BLUEMOUNTAIN CLO LTD 499,339 500,000 0.17 2.075 7/15/2032MML Blend Fund FIXED INCOME PALMER SQUARE CLO LTD 497,868 500,000 0.17 1.89688 5/21/2029MML Blend Fund FIXED INCOME SMB PRIVATE EDUCATION LOAN TRU 1,198,009 1,200,000 0.41 1.15238 6/15/2037MML Blend Fund FIXED INCOME AXIS SPECIALTY FINANCE 300,563 275,000 0.10 3.9 7/15/2029MML Blend Fund FIXED INCOME AASET 2019 1 TRUST 432,272 463,886 0.15 3.844 5/15/2039MML Blend Fund FIXED INCOME KKR GRP FIN CO VI LLC 322,125 280,000 0.11 3.75 7/1/2029MML Blend Fund FIXED INCOME SPIRIT REALTY LP 312,058 300,000 0.11 4 7/15/2029MML Blend Fund FIXED INCOME HORIZON AIRCRAFT FINANCE II LL 293,170 313,990 0.10 3.721 7/15/2039MML Blend Fund FIXED INCOME COLLEGE AVE STUDENT LOANS 525,832 531,000 0.18 3.81 12/28/2048MML Blend Fund FIXED INCOME AXIS SPECIALTY FINAN PLC 727,917 665,000 0.25 4 12/6/2027MML Blend Fund FIXED INCOME HERO FUNDING TRUST 147,167 142,799 0.05 3.19 9/20/2048MML Blend Fund FIXED INCOME VOYA CLO LTD 293,831 300,000 0.10 1.97175 10/20/2031MML Blend Fund FIXED INCOME KREF 2018 FL1 LTD. 203,848 210,000 0.07 2.1505 6/15/2036MML Blend Fund FIXED INCOME CSX CORP 205,776 155,000 0.07 4.75 11/15/2048

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Blend Fund FIXED INCOME DUPONT DE NEMOURS INC 463,170 365,000 0.16 5.319 11/15/2038MML Blend Fund FIXED INCOME TACO BELL FUNDING, LLC 251,742 235,800 0.09 4.94 11/25/2048MML Blend Fund FIXED INCOME ATRIUM CDO CORP 246,860 250,000 0.08 2.0055 1/23/2031MML Blend Fund FIXED INCOME PETROLEOS MEXICANOS 164,350 190,000 0.06 5.35 2/12/2028MML Blend Fund FIXED INCOME ATLAS SENIOR LOAN FUND LTD 937,792 953,952 0.32 1.531 11/27/2031MML Blend Fund FIXED INCOME KINROSS GOLD CORP 188,276 166,000 0.06 4.5 7/15/2027MML Blend Fund FIXED INCOME BHMS MORTGAGE TRUST 927,578 970,000 0.31 1.40238 7/15/2035MML Blend Fund FIXED INCOME BHMS MORTGAGE TRUST 788,397 850,000 0.27 1.65238 7/15/2035MML Blend Fund FIXED INCOME NELNET STUDENT LOAN TRUST 588,583 600,000 0.20 0.89813 9/27/2066MML Blend Fund FIXED INCOME BANK OF AMERICA CORP 117,306 100,000 0.04 4.271 7/23/2029MML Blend Fund FIXED INCOME NAVIENT STUDENT LOAN TRUST 252,838 250,000 0.09 4.22 6/16/2042MML Blend Fund FUTURE US ULTRA BOND CBT DEC20 - 6,100,000 0.04 0 12/21/2020MML Blend Fund CASH EQUIVALENT TREASURY BILL 999,991 1,000,000 0.34 0 10/6/2020MML Blend Fund FUTURE US LONG BOND(CBT) DEC20 - 1,700,000 0.01 0 12/21/2020MML Blend Fund FUTURE US 5YR NOTE (CBT) DEC20 - 5,000,000 0.00 0 12/31/2020MML Blend Fund FUTURE US 2YR NOTE (CBT) DEC20 - 38,800,000 0.00 0 12/31/2020MML Blend Fund FIXED INCOME STARBUCKS CORP 419,393 395,000 0.14 2.55 11/15/2030MML Blend Fund FIXED INCOME APPLE INC 183,380 175,000 0.06 2.65 5/11/2050MML Blend Fund FIXED INCOME AMERICAN INTL GROUP 315,599 285,000 0.11 3.4 6/30/2030MML Blend Fund FIXED INCOME JPMORGAN CHASE + CO 262,862 245,000 0.09 2.956 5/13/2031MML Blend Fund FIXED INCOME LEIDOS INC 169,933 145,000 0.06 4.375 5/15/2030MML Blend Fund FIXED INCOME DISCOVERY COMMUNICATIONS 154,752 135,000 0.05 4.65 5/15/2050MML Blend Fund FIXED INCOME ITC HOLDINGS CORP 241,951 225,000 0.08 2.95 5/14/2030MML Blend Fund FIXED INCOME PAYPAL HOLDINGS INC 188,056 170,000 0.06 3.25 6/1/2050MML Blend Fund FIXED INCOME WALT DISNEY COMPANY/THE 411,321 365,000 0.14 3.6 1/13/2051MML Blend Fund FIXED INCOME VIACOMCBS INC 240,315 210,000 0.08 4.2 5/19/2032MML Blend Fund FIXED INCOME BRIGHTHOUSE FINANCIAL IN 267,850 230,000 0.09 5.625 5/15/2030MML Blend Fund FIXED INCOME UNITEDHEALTH GROUP INC 225,379 210,000 0.08 3.125 5/15/2060MML Blend Fund FIXED INCOME ANTARES HOLDINGS 474,577 450,000 0.16 8.5 5/18/2025MML Blend Fund FIXED INCOME DENTSPLY SIRONA INC 163,077 150,000 0.06 3.25 6/1/2030MML Blend Fund FIXED INCOME MPLX LP 97,105 97,000 0.03 6.25 10/15/2022MML Blend Fund FIXED INCOME FNMA POOL CA6096 2,505,069 2,330,810 0.85 3.5 6/1/2050MML Blend Fund FIXED INCOME FED HM LN PC POOL RA2483 2,710,308 2,544,709 0.92 3.5 6/1/2050MML Blend Fund FIXED INCOME YARA INTERNATIONAL ASA 90,957 85,000 0.03 3.148 6/4/2030MML Blend Fund FIXED INCOME WRKCO INC 179,486 165,000 0.06 3 6/15/2033MML Blend Fund FIXED INCOME AERCAP IRELAND CAP/GLOBA 172,731 160,000 0.06 6.5 7/15/2025MML Blend Fund FIXED INCOME REINSURANCE GRP OF AMER 315,734 290,000 0.11 3.15 6/15/2030MML Blend Fund FIXED INCOME PLAINS ALL AMER PIPELINE 271,511 280,000 0.09 3.8 9/15/2030MML Blend Fund FIXED INCOME AUTOZONE INC 230,066 235,000 0.08 1.65 1/15/2031MML Blend Fund FIXED INCOME SMB PRIVATE EDUCATION LOAN TRU 929,502 956,000 0.32 2.76 7/15/2053MML Blend Fund FIXED INCOME BUNGE LTD FINANCE CORP 95,416 95,000 0.03 1.63 8/17/2025MML Blend Fund FIXED INCOME HOST HOTELS + RESORTS LP 487,220 509,000 0.17 3.5 9/15/2030MML Blend Fund FIXED INCOME AGREE LP 119,280 115,000 0.04 2.9 10/1/2030MML Blend Fund FIXED INCOME FNMA POOL FM4017 211,514 199,704 0.07 3.5 8/1/2050MML Blend Fund CASH EQUIVALENT INTERCONTINENTAL EXCHANGE 999,557 1,000,000 0.34 0 11/13/2020MML Blend Fund FIXED INCOME TIF FUNDING II LLC 153,778 154,031 0.05 2.09 8/20/2045MML Blend Fund FIXED INCOME MANHATTAN WEST 531,779 519,000 0.18 2.41281 9/10/2039MML Blend Fund CASH EQUIVALENT INTERCONTINENTAL EXCHANGE 1,998,674 2,000,000 0.68 0 12/3/2020

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Blend Fund FIXED INCOME KKR GROUP FINAN CO VIII 173,236 170,000 0.06 3.5 8/25/2050MML Blend Fund FIXED INCOME BARCLAYS COMMERCIAL MORTGAGE S 336,139 320,000 0.11 2.444 4/15/2053MML Blend Fund FIXED INCOME CIFC FUNDING LTD 250,753 250,000 0.09 1.94233 7/15/2032MML Blend Fund FIXED INCOME PACIFIC GAS + ELECTRIC 180,779 190,000 0.06 2.5 2/1/2031MML Blend Fund FIXED INCOME BP CAPITAL MARKETS PLC 375,300 360,000 0.13 4.375 12/31/2099MML Blend Fund FIXED INCOME UPJOHN INC 310,608 300,000 0.11 2.7 6/22/2030MML Blend Fund FIXED INCOME VEREIT OPERATING PARTNER 146,173 140,000 0.05 3.4 1/15/2028MML Blend Fund FIXED INCOME CNH INDUSTRIAL CAP LLC 137,531 135,000 0.05 1.95 7/2/2023MML Blend Fund FIXED INCOME AERCAP IRELAND CAP/GLOBA 345,235 335,000 0.12 4.5 9/15/2023MML Blend Fund FIXED INCOME ARCH CAPITAL GROUP LTD 333,279 310,000 0.11 3.635 6/30/2050MML Blend Fund FIXED INCOME TAKEDA PHARMACEUTICAL 258,093 245,000 0.09 3.375 7/9/2060MML Blend Fund FIXED INCOME GENERAL MOTORS CO 230,419 215,000 0.08 4.2 10/1/2027MML Blend Fund FIXED INCOME BLACKROCK TCP CAP CORP 476,689 470,000 0.16 4.125 8/11/2022MML Blend Fund FIXED INCOME CENOVUS ENERGY INC 248,622 275,000 0.08 4.25 4/15/2027MML Blend Fund FIXED INCOME ANTARES HOLDINGS 500,572 495,000 0.17 6 8/15/2023MML Blend Fund FIXED INCOME GENPACT LUXEMBOURG SARL 368,547 360,000 0.13 3.7 4/1/2022MML Blend Fund FIXED INCOME BARCLAYS COMMERCIAL MORTGAGE S 229,827 280,000 0.08 4.408717 8/5/2038MML Blend Fund FIXED INCOME BARCLAYS COMMERCIAL MORTGAGE S 311,205 350,000 0.11 4.408717 8/5/2038MML Blend Fund FIXED INCOME BARCLAYS COMMERCIAL MORTGAGE S 157,980 210,000 0.05 4.408717 8/5/2038MML Blend Fund FIXED INCOME 522 FUNDING CLO LTD 301,878 310,000 0.10 2.52175 10/20/2031MML Blend Fund FIXED INCOME STEELE CREEK CLO LTD 270,857 290,000 0.09 2.57038 8/18/2031MML Blend Fund FIXED INCOME DISCOVER BANK 518,928 495,000 0.18 4.682 8/9/2028MML Blend Fund FIXED INCOME ADVOCATE HEALTH CORP 191,058 165,000 0.06 3.829 8/15/2028MML Blend Fund FIXED INCOME HIGHBRIDGE LOAN MANAGEMENT LTD 339,032 350,000 0.12 2.425 10/15/2030MML Blend Fund FIXED INCOME BUNGE LTD FINANCE CORP 385,665 350,000 0.13 4.35 3/15/2024MML Blend Fund FIXED INCOME WILLIS NORTH AMERICA INC 570,725 480,000 0.19 4.5 9/15/2028MML Blend Fund FIXED INCOME PATTERSON UTI ENERGY INC 316,886 410,000 0.11 3.95 2/1/2028MML Blend Fund FIXED INCOME NAVIENT STUDENT LOAN TRUST 703,556 750,000 0.24 1.44813 6/27/2067MML Blend Fund FIXED INCOME CAL FUNDING III LTD 230,057 232,000 0.08 4.34 9/25/2043MML Blend Fund FIXED INCOME LAZARD GROUP LLC 532,129 460,000 0.18 4.5 9/19/2028MML Blend Fund FIXED INCOME PRUDENTIAL FINANCIAL INC 712,247 630,000 0.24 5.7 9/15/2048MML Blend Fund FIXED INCOME BANK 213,784 210,000 0.07 4.752706 9/15/2060MML Blend Fund FIXED INCOME SEQUOIA MORTGAGE TRUST 136,531 133,799 0.05 4 10/25/2048MML Blend Fund FIXED INCOME AIRCASTLE LTD 311,614 315,000 0.11 4.4 9/25/2023MML Blend Fund FIXED INCOME SOCIAL PROFESSIONAL LOAN PROGR 214,224 968,900 0.07 0.01 2/25/2048MML Blend Fund FIXED INCOME EATON VANCE CDO LTD 696,557 700,000 0.24 2.025 10/15/2030MML Blend Fund FIXED INCOME MADISON PARK FUNDING LTD 535,487 550,000 0.18 2.47175 10/18/2030MML Blend Fund FIXED INCOME J.G. WENTWORTH XLII LLC 275,155 268,950 0.09 3.96 10/15/2075MML Blend Fund FIXED INCOME ECMC GROUP STUDENT LOAN TRUST 392,162 399,679 0.13 0.94813 9/25/2068MML Blend Fund FIXED INCOME VEREIT OPERATING PARTNER 508,256 460,000 0.17 4.625 11/1/2025MML Blend Fund FIXED INCOME STORE MASTER FUNDING LLC 264,430 249,704 0.09 4.29 10/20/2048MML Blend Fund FIXED INCOME ADAMS OUTDOOR ADVERTISING 391,518 376,287 0.13 4.81 11/15/2048MML Blend Fund FIXED INCOME BX TRUST 291,631 294,000 0.10 1.85238 11/15/2035MML Blend Fund FIXED INCOME HELIOS ISSUER, LLC 118,129 109,787 0.04 4.87 7/20/2048MML Blend Fund FIXED INCOME OHA CREDIT PARTNERS LTD 291,896 300,000 0.10 2.42175 1/20/2032MML Blend Fund FIXED INCOME GENERAL MOTORS FINL CO 310,676 301,000 0.11 4.2 11/6/2021MML Blend Fund FIXED INCOME AASET 2018 2 TRUST 274,970 295,645 0.09 4.454 11/18/2038MML Blend Fund FIXED INCOME CRESTLINE DENALI CLO XIV, LTD 245,135 249,836 0.08 1.5355 10/23/2031

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Blend Fund FIXED INCOME BANC OF AMERICA MERRILL LYNCH 121,553 130,000 0.04 1.50238 9/15/2034MML Blend Fund FIXED INCOME BRIGHTHOUSE FINANCIAL IN 311,209 300,000 0.11 3.7 6/22/2027MML Blend Fund FIXED INCOME BRIGHTHOUSE FINANCIAL IN 264,659 275,000 0.09 4.7 6/22/2047MML Blend Fund FIXED INCOME ARES CAPITAL CORP 729,292 710,000 0.25 3.5 2/10/2023MML Blend Fund FIXED INCOME ENTERPRISE PRODUCTS OPER 214,256 225,000 0.07 5.25 8/16/2077MML Blend Fund FIXED INCOME DISCOVERY COMMUNICATIONS 397,022 349,000 0.13 3.95 3/20/2028MML Blend Fund FIXED INCOME SLM STUDENT LOAN TRUST 293,064 300,000 0.10 0.8445 10/25/2065MML Blend Fund FIXED INCOME PARK AEROSPACE HOLDINGS 247,737 250,000 0.08 4.5 3/15/2023MML Blend Fund FIXED INCOME EQT CORP 1,003,481 1,090,000 0.34 3.9 10/1/2027MML Blend Fund FIXED INCOME EQT CORP 331,925 340,000 0.11 3 10/1/2022MML Blend Fund FIXED INCOME CLEVELAND ELECTRIC ILLUM 167,489 155,000 0.06 3.5 4/1/2028MML Blend Fund FIXED INCOME PLAINS ALL AMERICAN PIPE 371,124 585,000 0.13 6.125 12/31/2099MML Blend Fund FIXED INCOME BANK OF NOVA SCOTIA 693,107 715,000 0.24 4.65 12/31/2099MML Blend Fund FIXED INCOME CLEAR CREEK CLO LTD 474,022 480,000 0.16 1.47175 10/20/2030MML Blend Fund FIXED INCOME MP CLO III, LTD 296,327 300,000 0.10 1.52175 10/20/2030MML Blend Fund FIXED INCOME CIFC FUNDING LTD 337,015 340,000 0.11 1.45288 11/16/2030MML Blend Fund FIXED INCOME MOSAIC SOLAR LOANS LLC 103,005 97,749 0.03 3.82 6/22/2043MML Blend Fund FIXED INCOME HERCULES CAPITAL INC 475,778 470,000 0.16 4.625 10/23/2022MML Blend Fund FIXED INCOME GLENCORE FUNDING LLC 174,461 160,000 0.06 3.875 10/27/2027MML Blend Fund FIXED INCOME SMB PRIVATE EDUCATION LOAN TRU 149,559 150,000 0.05 3.5 12/16/2041MML Blend Fund FIXED INCOME GENERAL MOTORS FINL CO 514,768 490,000 0.17 3.5 11/7/2024MML Blend Fund FIXED INCOME WAVE 2017 1 LLC 486,603 537,773 0.17 3.844 11/15/2042MML Blend Fund FIXED INCOME FIBRIA OVERSEAS FINANCE 265,000 250,000 0.09 4 1/14/2025MML Blend Fund FIXED INCOME GOODGREEN TRUST 313,919 303,828 0.11 3.26 10/15/2053MML Blend Fund FIXED INCOME NP SPE II LLC 390,561 380,000 0.13 4.219 10/21/2047MML Blend Fund FIXED INCOME ENERGY TRANSFER OPERATNG 352,350 540,000 0.12 6.25 12/31/2099MML Blend Fund FIXED INCOME COMCAST CORP 161,377 135,000 0.05 3.969 11/1/2047MML Blend Fund FIXED INCOME JP MORGAN CHASE COMMERCIAL MOR 521,465 490,000 0.18 3.0556 8/15/2049MML Blend Fund FIXED INCOME ENLINK MIDSTREAM PARTNER 128,901 149,000 0.04 4.85 7/15/2026MML Blend Fund FIXED INCOME COMCAST CORP 244,792 220,000 0.08 3.4 7/15/2046MML Blend Fund FIXED INCOME NAVIENT STUDENT LOAN TRUST 341,940 350,693 0.12 0.84813 2/25/2070MML Blend Fund FIXED INCOME TEVA PHARMACEUTICALS NE 229,796 232,000 0.08 2.2 7/21/2021MML Blend Fund FIXED INCOME FIRST REPUBLIC BANK 1,132,572 935,000 0.38 4.375 8/1/2046MML Blend Fund FIXED INCOME NAVIENT STUDENT LOAN TRUST 337,989 337,989 0.11 1.39813 6/25/2065MML Blend Fund FIXED INCOME AVENTURA MALL TRUST 666,610 710,000 0.23 4.249397 7/5/2040MML Blend Fund FIXED INCOME NAVIENT STUDENT LOAN TRUST 742,588 750,000 0.25 0.94813 3/25/2067MML Blend Fund FIXED INCOME EQM MIDSTREAM PARTNERS L 499,025 500,000 0.17 4.75 7/15/2023MML Blend Fund FIXED INCOME CROWN CASTLE TOWERS LLC 284,893 250,000 0.10 4.241 7/15/2048MML Blend Fund FIXED INCOME MORGAN STANLEY CAPITAL I TRUST 138,786 120,000 0.05 4.62 7/15/2051MML Blend Fund FIXED INCOME WELLS FARGO COMMERCIAL MORTGAG 281,628 240,000 0.10 4.405 6/15/2051MML Blend Fund FIXED INCOME WELLS FARGO COMMERCIAL MORTGAG 65,953 60,000 0.02 4.556 6/15/2051MML Blend Fund FIXED INCOME KDAC AVIATION FINANCE LIMITED 294,422 335,189 0.10 4.212 12/15/2042MML Blend Fund FIXED INCOME EDLINC STUDENT LOAN FUNDING TR 287,128 290,561 0.10 3.6 12/1/2047MML Blend Fund FIXED INCOME ATHENE HOLDING LTD 1,362,816 1,255,000 0.46 4.125 1/12/2028MML Blend Fund FIXED INCOME DEUTSCHE BANK NY 430,589 428,000 0.15 3.15 1/22/2021MML Blend Fund FIXED INCOME HERTZ VEHICLE FINANCING LLC 644,433 650,000 0.22 3.6 2/25/2024MML Blend Fund FIXED INCOME SOCIAL PROFESSIONAL LOAN PROGR 413,442 1,000,000 0.14 0.01 2/25/2042MML Blend Fund FIXED INCOME DEEPHAVEN RESIDENTIAL MORTGAGE 149,672 148,743 0.05 2.976 12/25/2057

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Blend Fund FIXED INCOME DEEPHAVEN RESIDENTIAL MORTGAGE 42,518 42,498 0.01 3.202 12/25/2057MML Blend Fund OPTIONS BM1107614 SWAPTION 295,515 11,940,000 0.10 0 1/31/2033MML Blend Fund OPTIONS BM1107911 SWAPTION 102,959 748,250 0.03 0 1/31/2033MML Blend Fund FIXED INCOME ENTERPRISE PRODUCTS OPER 173,550 195,000 0.06 5.375 2/15/2078MML Blend Fund FIXED INCOME MPLX LP 199,631 195,000 0.07 4.5 4/15/2038MML Blend Fund FIXED INCOME PNMAC GMSR ISSUER TRUST 195,203 200,000 0.07 2.99813 2/25/2023MML Blend Fund FIXED INCOME HIGHWOODS REALTY LP 137,909 125,000 0.05 4.125 3/15/2028MML Blend Fund FIXED INCOME PETROLEOS MEXICANOS 56,222 60,000 0.02 6.5 3/13/2027MML Blend Fund FIXED INCOME TELEFONICA EMISIONES SAU 207,456 180,000 0.07 4.665 3/6/2038MML Blend Fund FIXED INCOME CVS HEALTH CORP 293,574 230,000 0.10 5.05 3/25/2048MML Blend Fund FIXED INCOME CVS HEALTH CORP 292,618 250,000 0.10 4.3 3/25/2028MML Blend Fund FIXED INCOME PROGRESSIVE CORP 375,000 375,000 0.13 5.375 12/31/2099MML Blend Fund FIXED INCOME AMERICAN INTL GROUP 243,537 210,000 0.08 4.2 4/1/2028MML Blend Fund FIXED INCOME AMERICAN INTL GROUP 682,682 625,000 0.23 5.75 4/1/2048MML Blend Fund FIXED INCOME AMERICAN INTL GROUP 91,887 75,000 0.03 4.75 4/1/2048MML Blend Fund FIXED INCOME NAVIENT STUDENT LOAN TRUST 534,152 550,000 0.18 0.89813 3/25/2067MML Blend Fund FIXED INCOME AMERICAN TOWER TRUST I 336,312 310,000 0.11 3.652 3/15/2048MML Blend Fund FIXED INCOME SYNGENTA FINANCE NV 660,088 625,000 0.22 4.441 4/24/2023MML Blend Fund FIXED INCOME DOMINOS PIZZA MASTER ISSUER LL 321,039 303,800 0.11 4.116 7/25/2048MML Blend Fund FIXED INCOME BENEFIT STREET PARTNERS CLO LT 255,735 260,000 0.09 1.36175 4/20/2031MML Blend Fund FIXED INCOME GOODGREEN TRUST 380,427 357,964 0.13 3.93 10/15/2053MML Blend Fund FIXED INCOME ENSTAR GROUP LTD 385,484 370,000 0.13 4.5 3/10/2022MML Blend Fund FIXED INCOME FULTON FINANCIAL CORP 235,072 230,000 0.08 3.6 3/16/2022MML Blend Fund FIXED INCOME HUMANA INC 163,639 125,000 0.06 4.8 3/15/2047MML Blend Fund FIXED INCOME 321 HENDERSON RECEIVABLES LLC 1,220,460 1,100,000 0.41 5.43 8/15/2062MML Blend Fund FIXED INCOME CAPITAL AUTOMOTIVE REIT 131,817 131,405 0.04 4.18 4/15/2047MML Blend Fund FIXED INCOME BRE GRAND ISLANDER TIMESHARE I 76,910 76,565 0.03 2.94 5/25/2029MML Blend Fund FIXED INCOME FNMA POOL MA3029 671,715 637,262 0.23 3 6/1/2032MML Blend Fund FIXED INCOME HELIOS ISSUER, LLC 224,863 211,236 0.08 4.94 9/20/2049MML Blend Fund FIXED INCOME BANK OF AMERICA CORP 243,722 200,000 0.08 4.244 4/24/2038MML Blend Fund FIXED INCOME GOODGREEN TRUST 192,926 182,922 0.07 3.74 10/15/2052MML Blend Fund FIXED INCOME ICAHN ENTERPRISES/FIN 555,814 550,000 0.19 6.25 2/1/2022MML Blend Fund FIXED INCOME TEACHERS INSUR + ANNUITY 204,893 175,000 0.07 4.27 5/15/2047MML Blend Fund FIXED INCOME SPIRIT REALTY LP 63,309 59,000 0.02 4.45 9/15/2026MML Blend Fund FIXED INCOME GS MORTGAGE SECURITIES TRUST 487,629 440,000 0.17 3.869 5/10/2050MML Blend Fund FIXED INCOME AASET 2017 1 TRUST 261,381 289,117 0.09 3.967 5/16/2042MML Blend Fund FIXED INCOME FNMA POOL MA3090 287,804 273,042 0.10 3 8/1/2032MML Blend Fund FIXED INCOME DOMINOS PIZZA MASTER ISSUER LL 114,216 106,975 0.04 4.118 7/25/2047MML Blend Fund FIXED INCOME CIT EDUCATION LOAN TRUST 531,097 595,105 0.18 0.46038 6/15/2043MML Blend Fund FIXED INCOME SOCIAL PROFESSIONAL LOAN PROGR 496,336 500,000 0.17 3.61 9/25/2040MML Blend Fund FIXED INCOME SOCIAL PROFESSIONAL LOAN PROGR 345,020 1,000,000 0.12 0.01 9/25/2040MML Blend Fund FIXED INCOME DRB PRIME STUDENT LOAN TRUST 86,926 86,016 0.03 3.02 8/25/2042MML Blend Fund FIXED INCOME GENERAL MOTORS CO 138,056 130,000 0.05 5.15 4/1/2038MML Blend Fund FIXED INCOME FNMA POOL AL8173 168,756 148,326 0.06 5 2/1/2044MML Blend Fund FIXED INCOME FNMA POOL AV1897 27,670 25,733 0.01 3.5 12/1/2028MML Blend Fund FUTURE 90DAY EUR FUTR MAR23 - (750,000) 0.00 0 3/13/2023MML Blend Fund FIXED INCOME EDLINC STUDENT LOAN FUNDING TR 286,784 270,000 0.10 4.38813 11/26/2040MML Blend Fund FIXED INCOME TANGER PROPERTIES LP 323,839 322,000 0.11 3.875 12/1/2023

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Blend Fund FIXED INCOME ARCH CAPITAL GRP US INC 216,289 170,000 0.07 5.144 11/1/2043MML Blend Fund FIXED INCOME LEGG MASON INC 353,074 255,000 0.12 5.625 1/15/2044MML Blend Fund FIXED INCOME NORFOLK SOUTHERN CORP 263,472 215,000 0.09 4.05 8/15/2052MML Blend Fund FIXED INCOME LAUREL ROAD PRIME STUDENT LOAN 78,204 76,461 0.03 3.72 5/26/2043MML Blend Fund FIXED INCOME FORD MOTOR CREDIT CO LLC 467,892 465,000 0.16 4.14 2/15/2023MML Blend Fund FIXED INCOME UNITED AIR 2018 1 B PTT 60,662 78,230 0.02 4.6 9/1/2027MML Blend Fund FIXED INCOME BARCLAYS PLC 345,940 345,000 0.12 1.66013 5/16/2024MML Blend Fund FIXED INCOME SEQUOIA MORTGAGE TRUST 273,394 265,972 0.09 4 6/25/2048MML Blend Fund FIXED INCOME NAVIENT STUDENT LOAN TRUST 131,705 137,558 0.04 0.87238 12/15/2059MML Blend Fund FIXED INCOME HERO FUNDING TRUST 294,021 274,001 0.10 4.67 9/20/2048MML Blend Fund FIXED INCOME AMAZON.COM INC 422,243 325,000 0.14 4.05 8/22/2047MML Blend Fund FIXED INCOME HIGHBRIDGE LOAN MANAGEMENT LTD 242,506 250,000 0.08 2.12175 7/18/2031MML Blend Fund FIXED INCOME PSMC 2018 1 TRUST 290,015 284,942 0.10 3.5 6/25/2048MML Blend Fund FIXED INCOME YARA INTERNATIONAL ASA 873,005 745,000 0.30 4.75 6/1/2028MML Blend Fund FIXED INCOME FNMA POOL CA1909 1,191,926 1,100,805 0.40 4.5 6/1/2048MML Blend Fund FIXED INCOME MADISON PARK FUNDING LTD 422,458 430,000 0.14 1.875 7/15/2030MML Blend Fund FIXED INCOME CASTLELAKE AIRCRAFT STRUCTURED 601,385 644,178 0.20 4.125 6/15/2043MML Blend Fund FIXED INCOME TRINITY RAIL LEASING L.P. 416,739 410,000 0.14 4.62 6/17/2048MML Blend Fund FIXED INCOME GENERAL MOTORS FINL CO 617,805 582,000 0.21 4.15 6/19/2023MML Blend Fund FIXED INCOME SLM STUDENT LOAN TRUST 269,728 301,696 0.09 0.4545 10/25/2040MML Blend Fund FIXED INCOME DRB PRIME STUDENT LOAN TRUST 118,523 118,235 0.04 2.04813 10/25/2044MML Blend Fund FIXED INCOME NAVIENT STUDENT LOAN TRUST 1,109,618 1,100,000 0.38 1.44813 3/25/2066MML Blend Fund FIXED INCOME CNH INDUSTRIAL CAP LLC 719,048 700,000 0.24 3.875 10/15/2021MML Blend Fund FIXED INCOME NAVIENT STUDENT LOAN TRUST 733,302 733,302 0.25 1.29813 3/25/2066MML Blend Fund FIXED INCOME GOODGREEN TRUST 250,939 241,411 0.09 3.23 10/15/2052MML Blend Fund FIXED INCOME LAZARD GROUP LLC 198,736 184,000 0.07 3.625 3/1/2027MML Blend Fund FIXED INCOME PLAINS ALL AMER PIPELINE 98,882 93,000 0.03 4.5 12/15/2026MML Blend Fund FIXED INCOME BANK OF AMERICA CORP 292,158 255,000 0.10 4.183 11/25/2027MML Blend Fund FIXED INCOME CHARTER COMM OPT LLC/CAP 301,782 225,000 0.10 6.484 10/23/2045MML Blend Fund FIXED INCOME HERO FUNDING TRUST 128,410 123,402 0.04 3.57 9/20/2047MML Blend Fund FIXED INCOME NELNET PRIVATE EDUCATION LOAN 55,369 55,086 0.02 3.6 12/26/2040MML Blend Fund FIXED INCOME BARCLAYS PLC 289,526 260,000 0.10 4.337 1/10/2028MML Blend Fund FIXED INCOME FORD MOTOR CREDIT CO LLC 445,500 450,000 0.15 3.81 1/9/2024MML Blend Fund FIXED INCOME ENERGY TRANSFER OPERATNG 455,246 440,000 0.15 4.2 4/15/2027MML Blend Fund FIXED INCOME CCO HLDGS LLC/CAP CORP 210,444 200,000 0.07 5.125 5/1/2027MML Blend Fund FIXED INCOME MYLAN NV 556,890 495,000 0.19 3.95 6/15/2026MML Blend Fund FIXED INCOME MYLAN NV 397,153 320,000 0.13 5.25 6/15/2046MML Blend Fund FIXED INCOME PARK AEROSPACE HOLDINGS 1,380,562 1,375,000 0.47 5.25 8/15/2022MML Blend Fund FIXED INCOME MOSAIC SOLAR LOANS LLC 46,710 43,515 0.02 4.45 6/20/2042MML Blend Fund FIXED INCOME SMB PRIVATE EDUCATION LOAN TRU 298,836 300,000 0.10 3.5 6/17/2041MML Blend Fund FIXED INCOME STANDARD INDUSTRIES INC 801,840 771,000 0.27 5 2/15/2027MML Blend Fund FIXED INCOME SUTTONPARK STRUCTURED SETTLEME 382,140 330,283 0.13 4.19 1/15/2071MML Blend Fund FIXED INCOME JP MORGAN MORTGAGE TRUST 303,196 297,426 0.10 3.5 1/25/2047MML Blend Fund FIXED INCOME GNMA II POOL MA4321 1,794,659 1,677,691 0.61 3.5 3/20/2047MML Blend Fund FIXED INCOME ECMC GROUP STUDENT LOAN TRUST 282,034 283,604 0.10 1.34813 12/27/2066MML Blend Fund FUTURE 90DAY EUR FUTR DEC24 - (2,500,000) 0.00 0 12/16/2024MML Blend Fund FIXED INCOME FNMA POOL AV2325 87,991 81,830 0.03 3.5 12/1/2028MML Blend Fund FIXED INCOME AIRCASTLE LTD 526,183 525,000 0.18 5 4/1/2023

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Blend Fund FIXED INCOME HUNTSMAN INTERNATIONAL L 211,834 197,000 0.07 5.125 11/15/2022MML Blend Fund FUTURE 90DAY EUR FUTR DEC23 - (1,000,000) 0.00 0 12/18/2023MML Blend Fund FIXED INCOME FNMA TBA 30 YR 2 3,981,141 3,850,000 1.35 2 10/14/2050MML Blend Fund FUTURE 90DAY EUR FUTR SEP22 - (750,000) - 0 9/19/2022MML Blend Fund FIXED INCOME DELL INT LLC / EMC CORP 723,295 616,000 0.25 6.02 6/15/2026MML Blend Fund FIXED INCOME SOCIAL PROFESSIONAL LOAN PROGR 56,226 56,046 0.02 1.34813 6/25/2033MML Blend Fund FIXED INCOME GE CAPITAL INTL FUNDING 211,112 200,000 0.07 4.418 11/15/2035MML Blend Fund FIXED INCOME OXFORD FINANCE FUNDING TRUST 26,890 26,879 0.01 3.968 6/17/2024MML Blend Fund FIXED INCOME MOLSON COORS BEVERAGE 300,630 285,000 0.10 4.2 7/15/2046MML Blend Fund FIXED INCOME FNMA POOL AS1304 162,352 150,985 0.06 3.5 12/1/2028MML Blend Fund FIXED INCOME HEALTHCARE TRUST OF AMER 551,010 495,000 0.19 3.5 8/1/2026MML Blend Fund EQUITY SWAP CREDIT SUISSE BOC (450,000) (450,000) 0.15 0MML Blend Fund FIXED INCOME PETROLEOS MEXICANOS 29,175 37,000 0.01 6.625 6/15/2038MML Blend Fund FIXED INCOME US TREASURY N/B 2,978,432 2,120,000 1.01 3.5 2/15/2039MML Blend Fund FIXED INCOME ONCOR ELECTRIC DELIVERY 65,921 40,000 0.02 7.5 9/1/2038MML Blend Fund FIXED INCOME BARCLAYS BANK PLC 462,928 440,000 0.16 10.179 6/12/2021MML Blend Fund FIXED INCOME TIME WARNER CABLE LLC 148,755 110,000 0.05 6.75 6/15/2039MML Blend Fund FIXED INCOME CITIGROUP INC 156,653 90,000 0.05 8.125 7/15/2039MML Blend Fund FIXED INCOME VALE OVERSEAS LIMITED 325,188 275,000 0.11 6.25 8/10/2026MML Blend Fund FIXED INCOME BUNGE LTD FINANCE CORP 282,528 262,000 0.10 3.25 8/15/2026MML Blend Fund FIXED INCOME KRAFT HEINZ FOODS CO 380,852 351,000 0.13 3.95 7/15/2025MML Blend Fund FIXED INCOME ECMC GROUP STUDENT LOAN TRUST 405,509 401,569 0.14 1.49813 7/26/2066MML Blend Fund FIXED INCOME WP CAREY INC 208,863 185,000 0.07 4.25 10/1/2026MML Blend Fund FIXED INCOME HERO FUNDING TRUST 115,626 114,029 0.04 3.08 9/20/2042MML Blend Fund FIXED INCOME FREDDIE MAC 154,964 133,995 0.05 5.5 5/15/2033MML Blend Fund FIXED INCOME GLOBAL SC FINANCE SRL 95,331 95,833 0.03 3.19 7/17/2029MML Blend Fund FIXED INCOME AMTRUST FINANCIAL SERVIC 718,579 775,000 0.24 6.125 8/15/2023MML Blend Fund FIXED INCOME MARATHON PETROLEUM CORP 104,252 100,000 0.04 4.75 9/15/2044MML Blend Fund FIXED INCOME AMER AIRLN 14 1 B PTT 16,240 22,931 0.01 4.375 4/1/2024MML Blend Fund FIXED INCOME MORGAN STANLEY 897,063 775,000 0.30 4.35 9/8/2026MML Blend Fund FIXED INCOME COMM MORTGAGE TRUST 295,907 290,000 0.10 4.514 9/10/2047MML Blend Fund FIXED INCOME BROWN + BROWN INC 271,463 246,000 0.09 4.2 9/15/2024MML Blend Fund FIXED INCOME EL PUERTO DE LIVERPOOL 463,361 445,000 0.16 3.95 10/2/2024MML Blend Fund FIXED INCOME ARES FINANCE CO LLC 379,488 355,000 0.13 4 10/8/2024MML Blend Fund FIXED INCOME CAPITAL AUTOMOTIVE REIT 150,906 151,164 0.05 3.66 10/15/2044MML Blend Fund FIXED INCOME PETROLEOS MEXICANOS 61,320 80,000 0.02 6.375 1/23/2045MML Blend Fund FIXED INCOME CRONOS CONTAINERS PROGRAM LTD 105,722 105,556 0.04 3.27 11/18/2029MML Blend Fund FIXED INCOME ASSOC BANC CORP 526,339 494,000 0.18 4.25 1/15/2025MML Blend Fund FUTURE 90DAY EUR FUTR MAR22 - (1,000,000) - 0 3/14/2022MML Blend Fund FIXED INCOME ENTERGY LOUISIANA LLC 181,582 165,000 0.06 4.95 1/15/2045MML Blend Fund FIXED INCOME NAVIENT STUDENT LOAN TRUST 143,894 155,000 0.05 1.64813 7/26/2049MML Blend Fund FIXED INCOME INGRAM MICRO INC 217,131 203,000 0.07 5.45 12/15/2024MML Blend Fund FIXED INCOME SVB FINANCIAL GROUP 430,472 400,000 0.15 3.5 1/29/2025MML Blend Fund FIXED INCOME JPMBB COMMERCIAL MORTGAGE SECU 529,220 500,000 0.18 3.8981 2/15/2048MML Blend Fund FIXED INCOME LAZARD GROUP LLC 173,434 160,000 0.06 3.75 2/13/2025MML Blend Fund FIXED INCOME ALLY FINANCIAL INC 388,612 375,000 0.13 4.125 2/13/2022MML Blend Fund FUTURE 90DAY EUR FUTR DEC20 - (500,000) 0.00 0 12/14/2020MML Blend Fund FIXED INCOME CITIGROUP INC 426,370 387,000 0.14 3.875 3/26/2025

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Blend Fund FIXED INCOME XLIT LTD 546,252 483,000 0.19 4.45 3/31/2025MML Blend Fund FIXED INCOME 321 HENDERSON RECEIVABLES LLC 43,245 41,568 0.01 3.26 9/15/2072MML Blend Fund FIXED INCOME BANK OF AMERICA CORP 163,520 125,000 0.06 4.75 4/21/2045MML Blend Fund FIXED INCOME LENNAR CORP 218,277 200,000 0.07 4.75 5/30/2025MML Blend Fund FIXED INCOME ABBVIE INC 603,337 490,000 0.20 4.7 5/14/2045MML Blend Fund FIXED INCOME COMM MORTGAGE TRUST 140,944 140,000 0.05 4.434846 5/10/2048MML Blend Fund FIXED INCOME ENLINK MIDSTREAM PARTNER 534,700 621,000 0.18 4.15 6/1/2025MML Blend Fund FIXED INCOME CNO FINANCIAL GROUP INC 676,709 590,000 0.23 5.25 5/30/2025MML Blend Fund FIXED INCOME WENDYS FUNDING LLC 403,201 403,750 0.14 4.497 6/15/2045MML Blend Fund FIXED INCOME NELNET STUDENT LOAN TRUST 145,177 150,000 0.05 1.64813 6/25/2054MML Blend Fund FIXED INCOME WELK RESORTS LLC 38,976 39,137 0.01 2.79 6/16/2031MML Blend Fund FIXED INCOME REYNOLDS AMERICAN INC 267,332 220,000 0.09 5.85 8/15/2045MML Blend Fund FIXED INCOME NAVIENT STUDENT LOAN TRUST 135,187 150,000 0.05 1.64813 10/25/2058MML Blend Fund FIXED INCOME ENERGY TRANSFER OPERATNG 200,758 200,000 0.07 6.125 12/15/2045MML Blend Fund FIXED INCOME ABN AMRO BANK NV 84,458 75,000 0.03 4.75 7/28/2025MML Blend Fund FUTURE 90DAY EUR FUTR MAR21 - (500,000) 0.00 0 3/15/2021MML Blend Fund FIXED INCOME SPIRIT AIR 2015 1 PTT A 223,457 248,959 0.08 4.1 10/1/2029MML Blend Fund FIXED INCOME HSBC HOLDINGS PLC 504,262 464,000 0.17 4.25 8/18/2025MML Blend Fund FIXED INCOME AUTORIDAD CANAL DE PANAM 261,190 210,000 0.09 4.95 7/29/2035MML Blend Fund FIXED INCOME DOMINOS PIZZA MASTER ISSUER LL 551,240 518,400 0.19 4.474 10/25/2045MML Blend Fund FIXED INCOME SIERRA RECEIVABLES FUNDING CO 11,153 11,164 0.00 3.08 9/20/2032MML Blend Fund FIXED INCOME GOLDMAN SACHS GROUP INC 113,770 100,000 0.04 4.25 10/21/2025MML Blend Fund FIXED INCOME MICROSOFT CORP 466,285 330,000 0.16 4.45 11/3/2045MML Blend Fund FIXED INCOME BANK OF NOVA SCOTIA 231,677 200,000 0.08 4.5 12/16/2025MML Blend Fund FIXED INCOME PUGET ENERGY INC 374,594 350,000 0.13 3.65 5/15/2025MML Blend Fund FUTURE 90DAY EUR FUTR SEP21 - (1,000,000) 0.00 0 9/13/2021MML Blend Fund FIXED INCOME FORD MOTOR CREDIT CO LLC 400,100 400,000 0.14 3.336 3/18/2021MML Blend Fund FIXED INCOME FED HM LN PC POOL C01079 4,350 3,707 0.00 7.5 10/1/2030MML Blend Fund FIXED INCOME FED HM LN PC POOL C01135 17,168 14,720 0.01 7.5 2/1/2031MML Blend Fund FIXED INCOME FNMA POOL 253795 34,676 29,734 0.01 7 5/1/2031MML Blend Fund FIXED INCOME FNMA POOL 602008 2,231 1,908 0.00 8 8/1/2031MML Blend Fund FIXED INCOME FNMA POOL 190317 635 543 0.00 8 8/1/2031MML Blend Fund FIXED INCOME FED HM LN PC POOL C55867 28,111 24,937 0.01 7.5 2/1/2030MML Blend Fund FIXED INCOME CITIGROUP INC 139,713 100,000 0.05 6.625 6/15/2032MML Blend Fund FIXED INCOME WELLS FARGO + COMPANY 150,135 110,000 0.05 5.606 1/15/2044MML Blend Fund FIXED INCOME COMCAST CORP 250,331 190,000 0.08 4.75 3/1/2044MML Blend Fund FIXED INCOME CMS ENERGY CORP 510,611 390,000 0.17 4.875 3/1/2044MML Blend Fund FIXED INCOME HSBC HOLDINGS PLC 214,473 200,000 0.07 4.25 3/14/2024MML Blend Fund FIXED INCOME MCKESSON CORP 73,492 60,000 0.02 4.883 3/15/2044MML Blend Fund FIXED INCOME SUNOCO LOGISTICS PARTNER 69,877 75,000 0.02 5.3 4/1/2044MML Blend Fund FIXED INCOME PLAINS ALL AMER PIPELINE 243,828 275,000 0.08 4.7 6/15/2044MML Blend Fund FIXED INCOME GLENCORE FUNDING LLC 660,991 600,000 0.22 4.625 4/29/2024MML Blend Fund FIXED INCOME NAVIENT STUDENT LOAN TRUST 201,673 220,000 0.07 1.64813 6/25/2048MML Blend Fund FIXED INCOME PENNSYLVANIA ELECTRIC CO 323,495 295,000 0.11 4.15 4/15/2025MML Blend Fund FIXED INCOME AMERICAN INTL GROUP 233,311 200,000 0.08 4.5 7/16/2044MML Blend Fund FIXED INCOME GNMA II TBA 30 YR 3.5 17,302,844 16,430,000 5.87 3.5 10/21/2050MML Blend Fund FIXED INCOME NEWFIELD EXPLORATION CO 416,820 417,000 0.14 5.75 1/30/2022MML Blend Fund FIXED INCOME QWEST CORP 171,080 162,000 0.06 6.75 12/1/2021

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Blend Fund FIXED INCOME NISOURCE INC 237,910 175,000 0.08 5.8 2/1/2042MML Blend Fund FIXED INCOME MARATHON PETROLEUM CORP 207,250 170,000 0.07 6.5 3/1/2041MML Blend Fund FIXED INCOME CVS PASS THROUGH TRUST 281,812 243,509 0.10 5.926 1/10/2034MML Blend Fund FIXED INCOME GS MORTGAGE SECURITIES TRUST 102,798 100,000 0.03 4.948 1/10/2045MML Blend Fund FIXED INCOME UNITED MEXICAN STATES 898,572 824,000 0.30 4.75 3/8/2044MML Blend Fund FIXED INCOME MOLSON COORS BEVERAGE 67,953 60,000 0.02 5 5/1/2042MML Blend Fund FIXED INCOME 321 HENDERSON RECEIVABLES LLC 39,910 41,051 0.01 0.38238 11/15/2040MML Blend Fund FIXED INCOME RAYTHEON TECH CORP 189,379 150,000 0.06 4.5 6/1/2042MML Blend Fund FIXED INCOME NEWFIELD EXPLORATION CO 242,513 250,000 0.08 5.625 7/1/2024MML Blend Fund FIXED INCOME WF RBS COMMERCIAL MORTGAGE TRU 193,639 190,000 0.07 4.311 8/15/2045MML Blend Fund FIXED INCOME PRUDENTIAL FINANCIAL INC 131,651 125,000 0.04 5.875 9/15/2042MML Blend Fund FIXED INCOME GNMA II TBA 30 YR 3 601,998 575,000 0.20 3 10/21/2050MML Blend Fund FIXED INCOME GENERAL ELECTRIC CO 42,493 42,000 0.01 4.125 10/9/2042MML Blend Fund FIXED INCOME GLENCORE FINANCE CANADA 174,664 149,000 0.06 5.55 10/25/2042MML Blend Fund FIXED INCOME COMM MORTGAGE TRUST 127,327 195,000 0.04 3.703 10/15/2045MML Blend Fund FIXED INCOME PRUDENTIAL FINANCIAL INC 238,990 225,000 0.08 5.625 6/15/2043MML Blend Fund FIXED INCOME NATIONAL OILWELL VARCO I 329,117 366,000 0.11 3.95 12/1/2042MML Blend Fund EQUITY ALLSTATE CORP 519,400 20,000 0.18 0MML Blend Fund FIXED INCOME FNMA POOL MA1356 1,284,626 1,183,563 0.44 3.5 2/1/2043MML Blend Fund FIXED INCOME JOBSOHIO BEVERAGE SYS STWD LIQ 417,264 325,000 0.14 4.532 1/1/2035MML Blend Fund FIXED INCOME FNMA POOL AD6996 427,073 372,608 0.14 5 7/1/2040MML Blend Fund FIXED INCOME POTOMAC ELECTRIC POWER 423,498 350,000 0.14 4.15 3/15/2043MML Blend Fund FIXED INCOME CMS ENERGY CORP 143,659 115,000 0.05 4.7 3/31/2043MML Blend Fund FIXED INCOME FIRST FRANKLIN MTG LOAN ASSET 392,659 420,000 0.13 1.87313 1/25/2035MML Blend Fund FIXED INCOME NISOURCE INC 481,160 385,000 0.16 4.8 2/15/2044MML Blend Fund FIXED INCOME SERVICE PROPERTIES TRUST 166,716 170,000 0.06 4.5 6/15/2023MML Blend Fund EQUITY SLM STUDENT LN TR 2006 2 1,083,566 1,799 0.37 0MML Blend Fund FIXED INCOME LYB INTL FINANCE BV 213,913 175,000 0.07 5.25 7/15/2043MML Blend Fund FIXED INCOME CREDIT SUISSE AG 396,375 350,000 0.13 6.5 8/8/2023MML Blend Fund FIXED INCOME FORD MOTOR CREDIT CO LLC 482,268 475,000 0.16 4.375 8/6/2023MML Blend Fund FIXED INCOME ALLSTATE CORP 1,030,861 990,000 0.35 5.75 8/15/2053MML Blend Fund FIXED INCOME FNMA TBA 15 YR 2 8,862,003 8,525,000 3.01 2 10/19/2035MML Blend Fund FIXED INCOME VERIZON COMMUNICATIONS 242,539 149,000 0.08 6.55 9/15/2043MML Blend Fund FIXED INCOME VALLEY NATIONAL BANCORP 262,516 245,000 0.09 5.125 9/27/2023MML Blend Fund FIXED INCOME WELLS FARGO + COMPANY 210,476 159,000 0.07 5.375 11/2/2043MML Blend Fund FIXED INCOME GOLDMAN SACHS GROUP INC 290,586 200,000 0.10 6.75 10/1/2037MML Blend Fund FIXED INCOME OVINTIV INC 72,651 80,000 0.02 6.5 2/1/2038MML Blend Fund FIXED INCOME FNMA POOL 888586 49,931 47,383 0.02 3.326 10/1/2034MML Blend Fund FIXED INCOME FNMA POOL 725692 23,552 22,485 0.01 3.138 10/1/2033MML Blend Fund FIXED INCOME SLM STUDENT LOAN TRUST 267,991 290,206 0.09 0.7445 7/25/2039MML Blend Fund FIXED INCOME FNMA POOL 530520 10,392 9,039 0.00 7.5 3/1/2030MML Blend Fund FIXED INCOME BANK OF AMERICA CORP 157,338 95,000 0.05 7.75 5/14/2038MML Blend Fund FIXED INCOME RAYTHEON TECH CORP 114,872 80,000 0.04 6.125 7/15/2038MML Blend Fund FIXED INCOME FNMA POOL 572844 22,571 19,217 0.01 7 4/1/2031MML Blend Fund FIXED INCOME MERRILL LYNCH MORTGAGE INVESTO 1,878 1,970 0.00 3.03163 7/25/2033MML Blend Fund FIXED INCOME FNMA TBA 30 YR 4.5 621,943 575,000 0.21 4.5 10/14/2050MML Blend Fund FIXED INCOME CITIGROUP INC 130,670 97,000 0.04 6 10/31/2033MML Blend Fund FIXED INCOME FREDDIE MAC 278,236 245,045 0.09 5.5 10/15/2033

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Blend Fund FIXED INCOME COUNTRYWIDE HOME LOANS 15,029 15,567 0.01 3.665677 2/25/2034MML Blend Fund FIXED INCOME STRUCTURED ADJUSTABLE RATE MOR 15,691 15,809 0.01 2.970284 3/25/2034MML Blend Fund FIXED INCOME CVS HEALTH CORP 243,161 175,000 0.08 6.125 9/15/2039MML Blend Fund FIXED INCOME REPUBLIC OF COLOMBIA 795,150 620,000 0.27 6.125 1/18/2041MML Blend Fund FIXED INCOME FNMA TBA 30 YR 3.5 7,695,797 7,300,000 2.61 3.5 10/14/2050MML Blend Fund FIXED INCOME CISCO SYSTEMS INC 81,599 55,000 0.03 5.5 1/15/2040MML Blend Fund FIXED INCOME FNMA POOL AD6437 64,944 56,661 0.02 5 6/1/2040MML Blend Fund FIXED INCOME COLLEGE LOAN CORPORATION TRUST 103,494 130,000 0.04 0 1/25/2047MML Blend Fund FIXED INCOME CENOVUS ENERGY INC 158,845 158,000 0.05 6.75 11/15/2039MML Blend Fund FIXED INCOME TECK RESOURCES LIMITED 226,475 200,000 0.08 6 8/15/2040MML Blend Fund FIXED INCOME KNOWLEDGEWORKS FOUNDATION 90,938 92,492 0.03 1.2 2/25/2042MML Blend Fund FIXED INCOME STRUCTURED RECEIVABLES FINANCE 54,082 51,565 0.02 3.73 8/15/2036MML Blend Fund FIXED INCOME CALIFORNIA ST 189,141 105,000 0.06 7.6 11/1/2040MML Blend Fund FIXED INCOME SOUTH CAROLINA ST STUDENT LOAN 168,894 169,966 0.06 1.318 10/27/2036MML Blend Fund FIXED INCOME ORANGE CNTY CA LOCAL TRANSPRTN 352,286 230,000 0.12 6.908 2/15/2041MML Blend Fund FIXED INCOME GOLDMAN SACHS GROUP INC 89,634 60,000 0.03 6.25 2/1/2041MML Blend Fund FIXED INCOME DBUBS MORTGAGE TRUST 110,241 110,000 0.04 5.471 11/10/2046MML Blend Fund FIXED INCOME MCKESSON CORP 170,309 125,000 0.06 6 3/1/2041MML Blend Fund FIXED INCOME MORGAN STANLEY CAPITAL I TRUST 250,959 250,000 0.09 5.2 6/15/2044MML Blend Fund FIXED INCOME JPMORGAN CHASE + CO 285,966 195,000 0.10 5.6 7/15/2041MML Blend Fund FIXED INCOME WAMU MORTGAGE PASS THROUGH CER 43,342 45,318 0.01 2.41929 4/25/2044MML Blend Fund FIXED INCOME ERAC USA FINANCE LLC 107,733 78,000 0.04 6.7 6/1/2034MML Blend Fund FIXED INCOME INDYMAC INDX MORTGAGE LOAN TRU 35,373 35,477 0.01 3.164963 8/25/2034MML Blend Fund FIXED INCOME UNITED MEXICAN STATES 214,560 160,000 0.07 6.75 9/27/2034MML Blend Fund FIXED INCOME MERRILL LYNCH MORTGAGE INVESTO 1,938 1,963 0.00 3.249992 2/25/2034MML Blend Fund FIXED INCOME GRUPO TELEVISA SAB 596,166 495,000 0.20 6.625 3/18/2025MML Blend Fund FIXED INCOME FNMA POOL 564594 9,615 8,366 0.00 7 1/1/2031MML Blend Fund FIXED INCOME GOAL CAPITAL FUNDING TRUST 101,489 116,754 0.03 0.7 8/25/2042MML Blend Fund FIXED INCOME XCEL ENERGY INC 571,779 390,000 0.19 6.5 7/1/2036MML Blend Fund FIXED INCOME NEVADA POWER CO 199,435 135,000 0.07 6.65 4/1/2036MML Blend Fund FIXED INCOME GOLDMAN SACHS GROUP INC 260,865 212,000 0.09 5.95 1/15/2027MML Blend Fund FIXED INCOME VALE OVERSEAS LIMITED 299,389 230,000 0.10 6.875 11/21/2036MML Blend Fund FIXED INCOME COUNTRYWIDE HOME LOANS 3,770 3,930 0.00 3.991 9/25/2033MML Blend Fund FIXED INCOME GSR MORTGAGE LOAN TRUST 5,698 5,644 0.00 3.489604 8/25/2034MML Blend Fund FIXED INCOME SLM STUDENT LOAN TRUST 210,927 237,022 0.07 0.4245 7/25/2055MML Blend Fund FIXED INCOME SLM STUDENT LOAN TRUST 290,133 325,628 0.10 0.5345 1/25/2044MML Blend Fund FIXED INCOME NELNET STUDENT LOAN TRUST 116,199 134,313 0.04 0.475 6/25/2041MML Blend Fund FIXED INCOME BANK OF AMERICA CORP 310,564 220,000 0.11 6.11 1/29/2037MML Blend Fund FIXED INCOME NELNET STUDENT LOAN TRUST 186,118 193,881 0.06 1.191 3/22/2032MML Blend Fund FIXED INCOME PLAINS ALL AMER PIPELINE 109,423 100,000 0.04 6.65 1/15/2037MML Blend Fund FIXED INCOME USF+G CAPITAL I 235,729 150,000 0.08 8.5 12/15/2045MML Blend Fund FIXED INCOME GNMA POOL 352021 1,022 972 0.00 7 11/15/2023MML Blend Fund FIXED INCOME FNMA POOL 524317 1,061 903 0.00 7.5 3/1/2030MML Blend Fund FIXED INCOME GNMA POOL 363066 2,135 2,030 0.00 7 8/15/2023MML Blend Fund FIXED INCOME FNMA POOL 536949 1,479 1,253 0.00 8 5/1/2030MML Blend Fund FIXED INCOME FED HM LN PC POOL C00470 10,208 9,077 0.00 8 8/1/2026MML Blend Fund FIXED INCOME GNMA POOL 354674 1,612 1,530 0.00 7 10/15/2023MML Blend Fund FIXED INCOME GNMA POOL 337539 133 126 0.00 7 7/15/2023

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Blend Fund FIXED INCOME FNMA POOL 499386 1,172 1,009 0.00 7.5 9/1/2029MML Blend Fund FIXED INCOME FNMA POOL 253265 1,076 925 0.00 7.5 5/1/2030MML Blend Fund FIXED INCOME FED HM LN PC POOL G00924 9,471 8,423 0.00 8 3/1/2028MML Blend Fund FIXED INCOME FNMA POOL 521006 462 394 0.00 7.5 12/1/2029MML Blend Fund FIXED INCOME FNMA POOL 253183 2,015 1,733 0.00 7.5 4/1/2030MML Blend Fund CASH SINGAPORE DOLLAR 0 0 - 0MML Blend Fund FIXED INCOME FNMA POOL 252981 5,613 4,828 0.00 7.5 1/1/2030MML Blend Fund FIXED INCOME FNMA POOL 522769 64 55 0.00 7.5 12/1/2029MML Blend Fund FIXED INCOME FNMA POOL 535351 2,124 1,822 0.00 8 6/1/2030MML Blend Fund CASH US DOLLAR (728,104) (728,104) 0.25 0MML Blend Fund FIXED INCOME FNMA POOL 253481 1,467 1,251 0.00 8 10/1/2030MML Equity Fund EQUITY PACKAGING CORP OF AMERICA 3,617,734 33,175 1.42 0MML Equity Fund EQUITY SEMPRA ENERGY 4,651,193 39,297 1.82 0MML Equity Fund EQUITY EOG RESOURCES INC 215,137 5,986 0.08 0MML Equity Fund EQUITY EDISON INTERNATIONAL 140,471 2,763 0.06 0MML Equity Fund EQUITY NISOURCE INC 561,066 25,503 0.22 0MML Equity Fund EQUITY SOUTHERN CO/THE 2,026,581 37,377 0.79 0MML Equity Fund EQUITY ROPER TECHNOLOGIES INC 1,104,332 2,795 0.43 0MML Equity Fund EQUITY SUN COMMUNITIES INC 1,576,941 11,215 0.62 0MML Equity Fund EQUITY AMEREN CORPORATION 2,186,088 27,644 0.86 0MML Equity Fund EQUITY AMERICAN ELECTRIC POWER 335,093 4,100 0.13 0MML Equity Fund EQUITY CUMMINS INC 760,176 3,600 0.30 0MML Equity Fund EQUITY DOMINION ENERGY INC 205,218 2,600 0.08 0MML Equity Fund EQUITY ENTERGY CORP 1,041,955 10,575 0.41 0MML Equity Fund EQUITY INTERNATIONAL PAPER CO 2,564,804 63,266 1.01 0MML Equity Fund EQUITY LAM RESEARCH CORP 530,800 1,600 0.21 0MML Equity Fund EQUITY LENNAR CORP A 1,747,952 21,400 0.69 0MML Equity Fund EQUITY NORFOLK SOUTHERN CORP 3,318,343 15,507 1.30 0MML Equity Fund EQUITY PUBLIC SERVICE ENTERPRISE GP 1,628,027 29,649 0.64 0MML Equity Fund EQUITY THERMO FISHER SCIENTIFIC INC 5,565,801 12,606 2.18 0MML Equity Fund EQUITY UNION PACIFIC CORP 2,460,875 12,500 0.97 0MML Equity Fund EQUITY JACOBS ENGINEERING GROUP INC 1,712,163 18,456 0.67 0MML Equity Fund EQUITY TYSON FOODS INC CL A 2,631,217 44,237 1.03 0MML Equity Fund EQUITY DANAHER CORP 9,478,396 44,018 3.72 0MML Equity Fund EQUITY AGILENT TECHNOLOGIES INC 2,158,703 21,386 0.85 0MML Equity Fund EQUITY JPMORGAN CHASE + CO 2,512,647 26,100 0.99 0MML Equity Fund EQUITY ZIMMER BIOMET HOLDINGS INC 757,483 5,564 0.30 0MML Equity Fund EQUITY PRINCIPAL FINANCIAL GROUP 431,976 10,727 0.17 0MML Equity Fund EQUITY YUM BRANDS INC 2,691,707 29,482 1.06 0MML Equity Fund EQUITY BIOGEN INC 170,208 600 0.07 0MML Equity Fund EQUITY SALESFORCE.COM INC 175,924 700 0.07 0MML Equity Fund EQUITY AIR LIQUIDE SA 201,528 1,270 0.08 0MML Equity Fund EQUITY CME GROUP INC 776,653 4,642 0.30 0MML Equity Fund EQUITY IBERDROLA SA 45,416 3,690 0.02 0MML Equity Fund EQUITY PHILIP MORRIS INTERNATIONAL 1,778,913 23,722 0.70 0MML Equity Fund EQUITY AMERICAN INTERNATIONAL GROUP 4,210,163 152,930 1.65 0MML Equity Fund EQUITY STANLEY BLACK + DECKER INC 1,427,360 8,800 0.56 0MML Equity Fund EQUITY E TRADE FINANCIAL CORP 2,408,306 48,118 0.94 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Equity Fund EQUITY NEXTERA ENERGY INC 8,228,821 29,647 3.23 0MML Equity Fund EQUITY NXP SEMICONDUCTORS NV 3,822,556 30,627 1.50 0MML Equity Fund EQUITY GENERAL MOTORS CO 1,111,016 37,547 0.44 0MML Equity Fund EQUITY CATERPILLAR INC 2,406,983 16,138 0.94 0MML Equity Fund EQUITY GOLDMAN SACHS GROUP INC 831,011 4,135 0.33 0MML Equity Fund EQUITY ROSS STORES INC 1,171,819 12,557 0.46 0MML Equity Fund EQUITY FEDEX CORP 1,749,070 6,954 0.69 0MML Equity Fund EQUITY FISERV INC 786,890 7,636 0.31 0MML Equity Fund EQUITY HALLIBURTON CO 383,720 31,844 0.15 0MML Equity Fund EQUITY PPG INDUSTRIES INC 1,741,593 14,266 0.68 0MML Equity Fund EQUITY QUALCOMM INC 7,843,254 66,649 3.08 0MML Equity Fund EQUITY ROCKWELL AUTOMATION INC 1,787,508 8,100 0.70 0MML Equity Fund EQUITY TJX COMPANIES INC 1,079,610 19,400 0.42 0MML Equity Fund EQUITY WEYERHAEUSER CO 1,983,737 69,556 0.78 0MML Equity Fund EQUITY WILLIAMS COS INC 2,914,174 148,304 1.14 0MML Equity Fund EQUITY HARTFORD FINANCIAL SVCS GRP 1,135,141 30,796 0.45 0MML Equity Fund EQUITY METLIFE INC 2,365,945 63,652 0.93 0MML Equity Fund EQUITY MGM RESORTS INTERNATIONAL 923,396 42,455 0.36 0MML Equity Fund EQUITY SCHWAB (CHARLES) CORP 25,470 703 0.01 0MML Equity Fund EQUITY UNITEDHEALTH GROUP INC 1,743,418 5,592 0.68 0MML Equity Fund EQUITY MOTOROLA SOLUTIONS INC 756,451 4,824 0.30 0MML Equity Fund EQUITY O REILLY AUTOMOTIVE INC 917,088 1,989 0.36 0MML Equity Fund EQUITY HCA HEALTHCARE INC 3,341,923 26,804 1.31 0MML Equity Fund EQUITY PROLOGIS INC 8,420,586 83,687 3.30 0MML Equity Fund EQUITY FACEBOOK INC CLASS A 52,380 200 0.02 0MML Equity Fund EQUITY DUKE ENERGY CORP 357,162 4,033 0.14 0MML Equity Fund EQUITY ASML HOLDING NV NY REG SHS 956,779 2,591 0.38 0MML Equity Fund EQUITY ABBVIE INC 2,923,404 33,376 1.15 0MML Equity Fund EQUITY INTERCONTINENTAL EXCHANGE IN 400,200 4,000 0.16 0MML Equity Fund EQUITY KEYSIGHT TECHNOLOGIES IN 1,107,225 11,209 0.43 0MML Equity Fund EQUITY ANTHEM INC 1,973,331 7,347 0.77 0MML Equity Fund EQUITY MEDTRONIC PLC 1,788,879 17,214 0.70 0MML Equity Fund EQUITY WESTROCK CO 1,734,395 49,925 0.68 0MML Equity Fund EQUITY WELLTOWER INC 1,004,511 18,234 0.39 0MML Equity Fund EQUITY ALPHABET INC CL C 9,568,566 6,511 3.75 0MML Equity Fund EQUITY CHUBB LTD 542,280 4,670 0.21 0MML Equity Fund EQUITY JOHNSON CONTROLS INTERNATION 1,603,689 39,258 0.63 0MML Equity Fund EQUITY HILTON WORLDWIDE HOLDINGS IN 1,987,956 23,300 0.78 0MML Equity Fund EQUITY BOOKING HOLDINGS INC 20,528 12 0.01 0MML Equity Fund EQUITY BROADCOM INC 3,520,424 9,663 1.38 0MML Equity Fund EQUITY BAUSCH HEALTH COS INC 811,670 52,231 0.32 0MML Equity Fund EQUITY ELANCO ANIMAL HEALTH INC 892,140 31,942 0.35 0MML Equity Fund EQUITY LINDE PLC 5,461,035 22,933 2.14 0MML Equity Fund EQUITY TC ENERGY CORP 1,778,202 42,318 0.70 0MML Equity Fund EQUITY DUPONT DE NEMOURS INC 1,015,284 18,300 0.40 0MML Equity Fund EQUITY SOUTHERN CO 424,910 9,130 0.17 0MML Equity Fund EQUITY EQUITABLE HOLDINGS INC 2,586,031 141,778 1.01 0MML Equity Fund EQUITY OTIS WORLDWIDE CORP 621,204 9,952 0.24 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Equity Fund CASH EQUIVALENT FIXED INC CLEARING CORP.REPO 500,000 500,000 0.20 0 10/1/2020MML Equity Fund EQUITY UNITED RENTALS INC 1,448,350 8,300 0.57 0MML Equity Fund EQUITY APPLIED MATERIALS INC 3,573,956 60,117 1.40 0MML Equity Fund EQUITY NVIDIA CORP 2,922,588 5,400 1.15 0MML Equity Fund EQUITY SAP SE 344,149 2,210 0.13 0MML Equity Fund EQUITY BECTON DICKINSON AND CO 890,466 3,827 0.35 0MML Equity Fund EQUITY HONEYWELL INTERNATIONAL INC 3,538,457 21,496 1.39 0MML Equity Fund EQUITY AES CORP 998,241 55,121 0.39 0MML Equity Fund EQUITY APPLE INC 3,246,965 28,037 1.27 0MML Equity Fund EQUITY BOSTON SCIENTIFIC CORP 2,582,996 67,600 1.01 0MML Equity Fund EQUITY CVS HEALTH CORP 52,385 897 0.02 0MML Equity Fund EQUITY CAPITAL ONE FINANCIAL CORP 3,174,128 44,171 1.24 0MML Equity Fund EQUITY WALT DISNEY CO/THE 2,367,322 19,079 0.93 0MML Equity Fund EQUITY EXXON MOBIL CORP 123,588 3,600 0.05 0MML Equity Fund EQUITY GENERAL ELECTRIC CO 3,484,327 559,282 1.37 0MML Equity Fund EQUITY HOME DEPOT INC 722,046 2,600 0.28 0MML Equity Fund EQUITY MICROSOFT CORP 9,173,753 43,616 3.60 0MML Equity Fund EQUITY MICRON TECHNOLOGY INC 2,183,875 46,505 0.86 0MML Equity Fund EQUITY MORGAN STANLEY 7,202,554 148,967 2.82 0MML Equity Fund EQUITY WELLS FARGO + CO 1,462,322 62,200 0.57 0MML Equity Fund EQUITY PNC FINANCIAL SERVICES GROUP 876,532 7,975 0.34 0MML Equity Fund EQUITY BANK OF AMERICA CORP 5,526,704 229,419 2.17 0MML Equity Fund EQUITY MARSH + MCLENNAN COS 2,132,388 18,591 0.84 0MML Equity Fund EQUITY TEXAS INSTRUMENTS INC 2,324,050 16,276 0.91 0MML Equity Fund EQUITY MCDONALD S CORP 3,693,139 16,826 1.45 0MML Equity Fund EQUITY SYNOPSYS INC 1,927,318 9,007 0.76 0MML Equity Fund EQUITY COCA COLA CO/THE 903,471 18,300 0.35 0MML Equity Fund EQUITY MARRIOTT INTERNATIONAL CL A 1,568,120 16,938 0.62 0MML Equity Fund EQUITY ANALOG DEVICES INC 980,616 8,400 0.38 0MML Equity Fund EQUITY PEPSICO INC 124,740 900 0.05 0MML Equity Fund EQUITY UNITED PARCEL SERVICE CL B 3,640,032 21,845 1.43 0MML Equity Fund EQUITY DEERE + CO 4,521,252 20,400 1.77 0MML Equity Fund EQUITY ENBRIDGE INC 1,865,763 63,896 0.73 0MML Equity Fund CASH EQUIVALENT ROWE T PRICE GOV RES FD 1,501,348 1,501,348 0.59 0.01 9/19/2034MML Equity Fund EQUITY MAGNA INTERNATIONAL INC 872,910 19,080 0.34 0MML Equity Fund EQUITY STRYKER CORP 2,103,078 10,093 0.82 0MML Equity Fund EQUITY PNC FINANCIAL SERVICES GROUP 2,846,669 25,900 0.65 0MML Equity Fund EQUITY BANK OF AMERICA CORP 12,635,205 524,500 2.88 0MML Equity Fund EQUITY EMERSON ELECTRIC CO 2,281,836 34,800 0.52 0MML Equity Fund EQUITY WW GRAINGER INC 1,177,341 3,300 0.27 0MML Equity Fund EQUITY INTL BUSINESS MACHINES CORP 6,375,508 52,400 1.45 0MML Equity Fund EQUITY SONOCO PRODUCTS CO 234,922 4,600 0.05 0MML Equity Fund EQUITY NUCOR CORP 807,480 18,000 0.18 0MML Equity Fund EQUITY TEXTRON INC 263,457 7,300 0.06 0MML Equity Fund EQUITY INTEL CORP 13,250,502 255,900 3.02 0MML Equity Fund EQUITY JOHNSON + JOHNSON 12,567,854 84,416 2.86 0MML Equity Fund EQUITY STATE STREET CORP 1,269,662 21,400 0.29 0MML Equity Fund EQUITY WHIRLPOOL CORP 717,171 3,900 0.16 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Equity Fund EQUITY AMERICAN EXPRESS CO 4,862,125 48,500 1.11 0MML Equity Fund EQUITY CARDINAL HEALTH INC 812,235 17,300 0.18 0MML Equity Fund EQUITY INTERPUBLIC GROUP OF COS INC 321,731 19,300 0.07 0MML Equity Fund EQUITY KROGER CO 844,359 24,900 0.19 0MML Equity Fund EQUITY UNITED PARCEL SERVICE CL B 6,915,145 41,500 1.57 0MML Equity Fund EQUITY NEWELL BRANDS INC 233,376 13,600 0.05 0MML Equity Fund EQUITY SNAP ON INC 485,529 3,300 0.11 0MML Equity Fund EQUITY DEERE + CO 4,144,481 18,700 0.94 0MML Equity Fund EQUITY CATERPILLAR INC 4,877,205 32,700 1.11 0MML Equity Fund EQUITY INTERNATIONAL PAPER CO 944,582 23,300 0.22 0MML Equity Fund EQUITY LAM RESEARCH CORP 2,322,250 7,000 0.53 0MML Equity Fund EQUITY LENNAR CORP A 1,355,888 16,600 0.31 0MML Equity Fund EQUITY LOCKHEED MARTIN CORP 6,400,776 16,700 1.46 0MML Equity Fund EQUITY NORFOLK SOUTHERN CORP 3,045,078 14,230 0.69 0MML Equity Fund EQUITY NORTHROP GRUMMAN CORP 3,186,449 10,100 0.73 0MML Equity Fund EQUITY OLD REPUBLIC INTL CORP 187,198 12,700 0.04 0MML Equity Fund EQUITY PUBLIC SERVICE ENTERPRISE GP 2,487,423 45,300 0.57 0MML Equity Fund EQUITY PULTEGROUP INC 712,866 15,400 0.16 0MML Equity Fund EQUITY UNITED RENTALS INC 767,800 4,400 0.17 0MML Equity Fund EQUITY AMERCO 462,774 1,300 0.11 0MML Equity Fund EQUITY BIO RAD LABORATORIES A 773,190 1,500 0.18 0MML Equity Fund EQUITY CREDIT ACCEPTANCE CORP 406,368 1,200 0.09 0MML Equity Fund EQUITY DARLING INGREDIENTS INC 187,356 5,200 0.04 0MML Equity Fund EQUITY DECKERS OUTDOOR CORP 132,006 600 0.03 0MML Equity Fund EQUITY MIDDLEBY CORP 161,478 1,800 0.04 0MML Equity Fund EQUITY OSHKOSH CORP 301,350 4,100 0.07 0MML Equity Fund EQUITY QUEST DIAGNOSTICS INC 915,920 8,000 0.21 0MML Equity Fund EQUITY RELIANCE STEEL + ALUMINUM 408,160 4,000 0.09 0MML Equity Fund EQUITY ARCH CAPITAL GROUP LTD 699,075 23,900 0.16 0MML Equity Fund EQUITY HENRY SCHEIN INC 511,386 8,700 0.12 0MML Equity Fund EQUITY TOLL BROTHERS INC 194,640 4,000 0.04 0MML Equity Fund EQUITY ALEXION PHARMACEUTICALS INC 1,441,818 12,600 0.33 0MML Equity Fund EQUITY APPLIED MATERIALS INC 2,800,095 47,100 0.64 0MML Equity Fund EQUITY COGNIZANT TECH SOLUTIONS A 2,138,136 30,800 0.49 0MML Equity Fund EQUITY EAST WEST BANCORP INC 255,372 7,800 0.06 0MML Equity Fund EQUITY GENTEX CORP 363,075 14,100 0.08 0MML Equity Fund EQUITY MCKESSON CORP 1,608,444 10,800 0.37 0MML Equity Fund EQUITY ROBERT HALF INTL INC 344,110 6,500 0.08 0MML Equity Fund EQUITY EBAY INC 2,500,800 48,000 0.57 0MML Equity Fund EQUITY BORGWARNER INC 472,628 12,200 0.11 0MML Equity Fund EQUITY LOEWS CORP 611,600 17,600 0.14 0MML Equity Fund EQUITY OGE ENERGY CORP 341,886 11,400 0.08 0MML Equity Fund EQUITY PINNACLE WEST CAPITAL 745,500 10,000 0.17 0MML Equity Fund EQUITY EATON VANCE CORP 251,790 6,600 0.06 0MML Equity Fund EQUITY EVEREST RE GROUP LTD 454,342 2,300 0.10 0MML Equity Fund EQUITY AGCO CORP 319,361 4,300 0.07 0MML Equity Fund EQUITY ALBEMARLE CORP 562,464 6,300 0.13 0MML Equity Fund EQUITY ALLSTATE CORP 1,816,902 19,300 0.41 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Equity Fund EQUITY AMERICAN ELECTRIC POWER 2,786,993 34,100 0.63 0MML Equity Fund EQUITY ARCHER DANIELS MIDLAND CO 1,529,521 32,900 0.35 0MML Equity Fund EQUITY ARROW ELECTRONICS INC 369,702 4,700 0.08 0MML Equity Fund EQUITY STEEL DYNAMICS INC 363,601 12,700 0.08 0MML Equity Fund EQUITY TERADYNE INC 421,138 5,300 0.10 0MML Equity Fund EQUITY CULLEN/FROST BANKERS INC 217,430 3,400 0.05 0MML Equity Fund EQUITY GILEAD SCIENCES INC 4,739,250 75,000 1.08 0MML Equity Fund EQUITY SEI INVESTMENTS COMPANY 431,120 8,500 0.10 0MML Equity Fund EQUITY UNIVERSAL HEALTH SERVICES B 181,934 1,700 0.04 0MML Equity Fund EQUITY CONAGRA BRANDS INC 1,028,448 28,800 0.23 0MML Equity Fund EQUITY GENERAL DYNAMICS CORP 2,367,153 17,100 0.54 0MML Equity Fund EQUITY HONEYWELL INTERNATIONAL INC 6,386,868 38,800 1.45 0MML Equity Fund EQUITY AES CORP 666,448 36,800 0.15 0MML Equity Fund EQUITY AMGEN INC 8,946,432 35,200 2.04 0MML Equity Fund EQUITY BEST BUY CO INC 1,713,866 15,400 0.39 0MML Equity Fund EQUITY CAPITAL ONE FINANCIAL CORP 1,983,336 27,600 0.45 0MML Equity Fund EQUITY CISCO SYSTEMS INC 9,485,112 240,800 2.16 0MML Equity Fund EQUITY MICRON TECHNOLOGY INC 3,038,312 64,700 0.69 0MML Equity Fund EQUITY MORGAN STANLEY 4,622,260 95,600 1.05 0MML Equity Fund EQUITY OMNICOM GROUP 638,550 12,900 0.15 0MML Equity Fund EQUITY ORACLE CORP 11,008,680 184,400 2.51 0MML Equity Fund EQUITY PFIZER INC 11,255,119 306,679 2.56 0MML Equity Fund EQUITY GENUINE PARTS CO 818,462 8,600 0.19 0MML Equity Fund EQUITY KIMBERLY CLARK CORP 1,624,260 11,000 0.37 0MML Equity Fund EQUITY MASCO CORP 926,184 16,800 0.21 0MML Equity Fund EQUITY LEIDOS HOLDINGS INC 410,090 4,600 0.09 0MML Equity Fund EQUITY PERRIGO CO PLC 367,280 8,000 0.08 0MML Equity Fund EQUITY VOYA FINANCIAL INC 431,370 9,000 0.10 0MML Equity Fund EQUITY ALLY FINANCIAL INC 300,840 12,000 0.07 0MML Equity Fund EQUITY PENTAIR PLC 439,392 9,600 0.10 0MML Equity Fund EQUITY BUNGE LTD 205,650 4,500 0.05 0MML Equity Fund EQUITY AMERISOURCEBERGEN CORP 1,182,424 12,200 0.27 0MML Equity Fund EQUITY CHEVRON CORP 7,948,800 110,400 1.81 0MML Equity Fund EQUITY PRINCIPAL FINANCIAL GROUP 334,241 8,300 0.08 0MML Equity Fund EQUITY ADVANCE AUTO PARTS INC 598,650 3,900 0.14 0MML Equity Fund EQUITY PRUDENTIAL FINANCIAL INC 1,505,424 23,700 0.34 0MML Equity Fund EQUITY 3M CO 5,087,317 31,760 1.16 0MML Equity Fund EQUITY JM SMUCKER CO/THE 750,880 6,500 0.17 0MML Equity Fund EQUITY COMCAST CORP CLASS A 12,351,420 267,000 2.81 0MML Equity Fund EQUITY CROWN HOLDINGS INC 614,880 8,000 0.14 0MML Equity Fund EQUITY CHENIERE ENERGY INC 374,787 8,100 0.09 0MML Equity Fund EQUITY MOLINA HEALTHCARE INC 604,032 3,300 0.14 0MML Equity Fund EQUITY LKQ CORP 504,686 18,200 0.11 0MML Equity Fund EQUITY BIOGEN INC 3,063,744 10,800 0.70 0MML Equity Fund EQUITY NRG ENERGY INC 458,026 14,900 0.10 0MML Equity Fund EQUITY ASSURANT INC 448,847 3,700 0.10 0MML Equity Fund EQUITY SIGNATURE BANK 257,269 3,100 0.06 0MML Equity Fund EQUITY CELANESE CORP 762,895 7,100 0.17 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Equity Fund EQUITY HUNTSMAN CORP 255,415 11,500 0.06 0MML Equity Fund EQUITY SVB FINANCIAL GROUP 769,984 3,200 0.18 0MML Equity Fund EQUITY AMERIPRISE FINANCIAL INC 1,279,113 8,300 0.29 0MML Equity Fund EQUITY AT+T INC 11,592,166 406,600 2.64 0MML Equity Fund EQUITY CDK GLOBAL INC 296,412 6,800 0.07 0MML Equity Fund EQUITY ANTHEM INC 4,028,850 15,000 0.92 0MML Equity Fund EQUITY QORVO INC 838,565 6,500 0.19 0MML Equity Fund EQUITY BWX TECHNOLOGIES INC 168,930 3,000 0.04 0MML Equity Fund EQUITY KRAFT HEINZ CO/THE 2,081,525 69,500 0.47 0MML Equity Fund EQUITY HP INC 1,543,887 81,300 0.35 0MML Equity Fund EQUITY HUBBELL INC 451,572 3,300 0.10 0MML Equity Fund EQUITY CHUBB LTD 3,135,240 27,000 0.71 0MML Equity Fund EQUITY ITT INC 277,535 4,700 0.06 0MML Equity Fund EQUITY JOHNSON CONTROLS INTERNATION 1,772,890 43,400 0.40 0MML Equity Fund EQUITY VISTRA CORP 537,510 28,500 0.12 0MML Equity Fund EQUITY KNIGHT SWIFT TRANSPORTATION 415,140 10,200 0.09 0MML Equity Fund EQUITY SENSATA TECHNOLOGIES HOLDING 409,830 9,500 0.09 0MML Equity Fund EQUITY BROADCOM INC 8,597,952 23,600 1.96 0MML Equity Fund EQUITY EVERGY INC 680,988 13,400 0.16 0MML Equity Fund EQUITY CIGNA CORP 3,455,964 20,400 0.79 0MML Equity Fund EQUITY FOX CORP CLASS A 528,770 19,000 0.12 0MML Equity Fund EQUITY CORTEVA INC 694,321 24,100 0.16 0MML Equity Fund EQUITY AMCOR PLC 556,920 50,400 0.13 0MML Equity Fund EQUITY GLOBE LIFE INC 1,102,620 13,800 0.25 0MML Equity Fund EQUITY EQUITABLE HOLDINGS INC 503,424 27,600 0.11 0MML Equity Fund CASH EQUIVALENT FIXED INC CLEARING CORP.REPO 1,857,494 1,857,494 0.42 0 10/1/2020MML Equity Fund EQUITY NORTHERN TRUST CORP 966,828 12,400 0.22 0MML Equity Fund EQUITY KELLOGG CO 1,311,177 20,300 0.30 0MML Equity Fund EQUITY PACKAGING CORP OF AMERICA 599,775 5,500 0.14 0MML Equity Fund EQUITY WILLIAMS SONOMA INC 406,980 4,500 0.09 0MML Equity Fund EQUITY FIFTH THIRD BANCORP 837,876 39,300 0.19 0MML Equity Fund EQUITY FREEPORT MCMORAN INC 1,293,428 82,700 0.29 0MML Equity Fund EQUITY PROGRESSIVE CORP 3,152,511 33,300 0.72 0MML Equity Fund EQUITY WR BERKLEY CORP 574,810 9,400 0.13 0MML Equity Fund EQUITY BRUNSWICK CORP 253,313 4,300 0.06 0MML Equity Fund EQUITY CSX CORP 3,572,820 46,000 0.81 0MML Equity Fund EQUITY CUMMINS INC 1,942,672 9,200 0.44 0MML Equity Fund EQUITY DR HORTON INC 1,656,297 21,900 0.38 0MML Equity Fund EQUITY EASTMAN CHEMICAL CO 624,960 8,000 0.14 0MML Equity Fund EQUITY FMC CORP 815,507 7,700 0.19 0MML Equity Fund EQUITY HUMANA INC 1,738,338 4,200 0.40 0MML Equity Fund EQUITY SKECHERS USA INC CL A 238,738 7,900 0.05 0MML Equity Fund EQUITY COMMERCE BANCSHARES INC 374,047 6,645 0.09 0MML Equity Fund EQUITY MARKEL CORP 866,593 890 0.20 0MML Equity Fund EQUITY GOLDMAN SACHS GROUP INC 4,200,273 20,900 0.96 0MML Equity Fund EQUITY AUTOZONE INC 1,766,460 1,500 0.40 0MML Equity Fund EQUITY AVERY DENNISON CORP 588,064 4,600 0.13 0MML Equity Fund EQUITY CORNING INC 1,364,461 42,100 0.31 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Equity Fund EQUITY DOVER CORP 888,388 8,200 0.20 0MML Equity Fund EQUITY KLA CORP 968,700 5,000 0.22 0MML Equity Fund EQUITY PPG INDUSTRIES INC 1,648,080 13,500 0.38 0MML Equity Fund EQUITY WILLIAMS COS INC 764,385 38,900 0.17 0MML Equity Fund EQUITY ELECTRONIC ARTS INC 2,256,093 17,300 0.51 0MML Equity Fund EQUITY AFLAC INC 1,581,225 43,500 0.36 0MML Equity Fund EQUITY JABIL INC 284,358 8,300 0.06 0MML Equity Fund EQUITY METLIFE INC 2,022,048 54,400 0.46 0MML Equity Fund EQUITY SCHWAB (CHARLES) CORP 2,271,621 62,700 0.52 0MML Equity Fund EQUITY MANPOWERGROUP INC 263,988 3,600 0.06 0MML Equity Fund EQUITY UNITEDHEALTH GROUP INC 9,515,220 30,520 2.17 0MML Equity Fund EQUITY CARLISLE COS INC 391,584 3,200 0.09 0MML Equity Fund EQUITY LABORATORY CRP OF AMER HLDGS 1,073,139 5,700 0.24 0MML Equity Fund EQUITY PARKER HANNIFIN CORP 1,537,784 7,600 0.35 0MML Equity Fund EQUITY TYSON FOODS INC CL A 1,040,900 17,500 0.24 0MML Equity Fund EQUITY SEALED AIR CORP 345,409 8,900 0.08 0MML Equity Fund EQUITY BLACKROCK INC 5,241,015 9,300 1.19 0MML Equity Fund EQUITY PACCAR INC 1,748,240 20,500 0.40 0MML Equity Fund EQUITY LINCOLN ELECTRIC HOLDINGS 303,732 3,300 0.07 0MML Equity Fund EQUITY RAYMOND JAMES FINANCIAL INC 596,632 8,200 0.14 0MML Equity Fund EQUITY VERIZON COMMUNICATIONS INC 14,527,458 244,200 3.31 0MML Equity Fund EQUITY JUNIPER NETWORKS INC 425,700 19,800 0.10 0MML Equity Fund EQUITY QUANTA SERVICES INC 449,310 8,500 0.10 0MML Equity Fund EQUITY FORD MOTOR CO 789,876 118,600 0.18 0MML Equity Fund EQUITY ON SEMICONDUCTOR CORP 520,560 24,000 0.12 0MML Equity Fund EQUITY DAVITA INC 702,330 8,200 0.16 0MML Equity Fund EQUITY EXELON CORP 1,119,288 31,300 0.25 0MML Equity Fund EQUITY ISHARES RUSSELL 1000 VALUE ETF 10,175,600 86,139 2.32 0MML Equity Fund EQUITY T ROWE PRICE GROUP INC 1,769,436 13,800 0.40 0MML Equity Fund EQUITY JPMORGAN CHASE + CO 17,819,577 185,100 4.06 0MML Equity Fund EQUITY HANESBRANDS INC 176,400 11,200 0.04 0MML Equity Fund EQUITY WESTERN UNION CO 503,605 23,500 0.11 0MML Equity Fund EQUITY CIENA CORP 198,450 5,000 0.05 0MML Equity Fund EQUITY OWENS CORNING 440,384 6,400 0.10 0MML Equity Fund EQUITY TRAVELERS COS INC/THE 3,386,347 31,300 0.77 0MML Equity Fund EQUITY BANK OF NEW YORK MELLON CORP 1,868,096 54,400 0.43 0MML Equity Fund EQUITY DOLLAR TREE INC 694,184 7,600 0.16 0MML Equity Fund EQUITY PHILIP MORRIS INTERNATIONAL 6,899,080 92,000 1.57 0MML Equity Fund EQUITY NETAPP INC 552,384 12,600 0.13 0MML Equity Fund EQUITY DISCOVERY INC A 198,107 9,100 0.05 0MML Equity Fund EQUITY MERCK + CO. INC. 12,492,270 150,600 2.84 0MML Equity Fund EQUITY LEAR CORP 370,770 3,400 0.08 0MML Equity Fund EQUITY PRIMERICA INC 260,222 2,300 0.06 0MML Equity Fund EQUITY LYONDELLBASELL INDU CL A 1,621,270 23,000 0.37 0MML Equity Fund EQUITY FIRST AMERICAN FINANCIAL 315,642 6,200 0.07 0MML Equity Fund EQUITY GENERAL MOTORS CO 2,115,685 71,500 0.48 0MML Equity Fund EQUITY HCA HEALTHCARE INC 2,518,536 20,200 0.57 0MML Equity Fund EQUITY MOSAIC CO/THE 221,067 12,100 0.05 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Equity Fund EQUITY KEMPER CORP 100,245 1,500 0.02 0MML Equity Fund EQUITY FORTUNE BRANDS HOME + SECURI 700,812 8,100 0.16 0MML Equity Fund EQUITY CBRE GROUP INC A 939,400 20,000 0.21 0MML Equity Fund EQUITY JAZZ PHARMACEUTICALS PLC 484,806 3,400 0.11 0MML Equity Fund EQUITY INGREDION INC 310,288 4,100 0.07 0MML Equity Fund EQUITY LPL FINANCIAL HOLDINGS INC 352,682 4,600 0.08 0MML Equity Fund EQUITY EATON CORP PLC 2,499,735 24,500 0.57 0MML Equity Fund EQUITY CDW CORP/DE 549,838 4,600 0.13 0MML Equity Fund EQUITY HD SUPPLY HOLDINGS INC 362,912 8,800 0.08 0MML Small Cap Equity Fund EQUITY COMPASS MINERALS INTERNATION 1,363,210 22,969 1.29 0MML Small Cap Equity Fund EQUITY SIGNATURE BANK 422,170 5,087 0.40 0MML Small Cap Equity Fund EQUITY FIRST HORIZON NATIONAL CORP 1,008,718 106,969 0.96 0MML Small Cap Equity Fund EQUITY ENERSYS 937,734 13,971 0.89 0MML Small Cap Equity Fund EQUITY TEXAS ROADHOUSE INC 1,558,412 25,636 1.48 0MML Small Cap Equity Fund EQUITY DIAMONDROCK HOSPITALITY CO 985,405 194,360 0.94 0MML Small Cap Equity Fund EQUITY LHC GROUP INC 2,650,198 12,468 2.52 0MML Small Cap Equity Fund EQUITY CRYOPORT INC 1,180,402 24,903 1.12 0MML Small Cap Equity Fund EQUITY ATKORE INTERNATIONAL GROUP I 776,502 34,162 0.74 0MML Small Cap Equity Fund EQUITY NOBLE MIDSTREAM PARTNERS LP 434,896 59,412 0.41 0MML Small Cap Equity Fund EQUITY BANK OF N.T. BUTTERFIELD+SON 997,966 44,792 0.95 0MML Small Cap Equity Fund EQUITY IRHYTHM TECHNOLOGIES INC 1,031,493 4,332 0.98 0MML Small Cap Equity Fund EQUITY G1 THERAPEUTICS INC 166,205 14,390 0.16 0MML Small Cap Equity Fund EQUITY SIMPLY GOOD FOODS CO/THE 1,060,164 48,080 1.01 0MML Small Cap Equity Fund EQUITY ZAI LAB LTD ADR 371,687 4,469 0.35 0MML Small Cap Equity Fund EQUITY TANDEM DIABETES CARE INC 2,038,914 17,964 1.94 0MML Small Cap Equity Fund EQUITY EVOQUA WATER TECHNOLOGIES CO 1,150,739 54,229 1.09 0MML Small Cap Equity Fund EQUITY ASGN INC 2,166,315 34,083 2.06 0MML Small Cap Equity Fund EQUITY INSPIRE MEDICAL SYSTEMS INC 1,301,856 10,088 1.24 0MML Small Cap Equity Fund EQUITY PERSPECTA INC 1,182,541 60,799 1.12 0MML Small Cap Equity Fund EQUITY BJ S WHOLESALE CLUB HOLDINGS 2,525,575 60,784 2.40 0MML Small Cap Equity Fund EQUITY FOCUS FINANCIAL PARTNERS A 987,930 30,129 0.94 0MML Small Cap Equity Fund EQUITY TWIST BIOSCIENCE CORP 1,058,338 13,931 1.00 0MML Small Cap Equity Fund EQUITY ADAPTIVE BIOTECHNOLOGIES 698,278 14,359 0.66 0MML Small Cap Equity Fund EQUITY FOUR CORNERS PROPERTY TRUST 1,944,226 75,976 1.85 0MML Small Cap Equity Fund EQUITY AXSOME THERAPEUTICS INC 395,509 5,551 0.38 0MML Small Cap Equity Fund EQUITY PROSIGHT GLOBAL INC 282,151 24,881 0.27 0MML Small Cap Equity Fund EQUITY BELLRING BRANDS INC CLASS A 980,753 47,288 0.93 0MML Small Cap Equity Fund EQUITY US ECOLOGY INC 479,106 14,665 0.45 0MML Small Cap Equity Fund EQUITY 1LIFE HEALTHCARE INC 427,158 15,062 0.41 0MML Small Cap Equity Fund EQUITY ADC THERAPEUTICS SA 298,461 9,047 0.28 0MML Small Cap Equity Fund EQUITY SELECTQUOTE INC 386,269 19,075 0.37 0MML Small Cap Equity Fund EQUITY AMERICAN WELL CORP CLASS A 285,730 9,640 0.27 0MML Small Cap Equity Fund CASH EQUIVALENT FIXED INC CLEARING CORP.REPO 845,522 845,522 0.80 0 10/1/2020MML Small Cap Equity Fund EQUITY SUBURBAN PROPANE PARTNERS LP 1,569,180 96,387 1.49 0MML Small Cap Equity Fund EQUITY BERKSHIRE HILLS BANCORP INC 416,198 41,167 0.40 0MML Small Cap Equity Fund EQUITY CEDAR FAIR LP 323,703 11,532 0.31 0MML Small Cap Equity Fund EQUITY FEDERATED HERMES INC 493,095 22,924 0.47 0MML Small Cap Equity Fund EQUITY KORN FERRY 1,596,479 55,051 1.52 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Small Cap Equity Fund EQUITY HERITAGE FINANCIAL CORP 877,663 47,725 0.83 0MML Small Cap Equity Fund EQUITY CATHAY GENERAL BANCORP 587,571 27,102 0.56 0MML Small Cap Equity Fund EQUITY BRANDYWINE REALTY TRUST 1,210,680 117,087 1.15 0MML Small Cap Equity Fund EQUITY AUTONATION INC 2,163,620 40,877 2.05 0MML Small Cap Equity Fund EQUITY AVISTA CORP 986,750 28,920 0.94 0MML Small Cap Equity Fund EQUITY NATIONAL FUEL GAS CO 785,944 19,363 0.75 0MML Small Cap Equity Fund EQUITY COMFORT SYSTEMS USA INC 611,269 11,867 0.58 0MML Small Cap Equity Fund EQUITY HUB GROUP INC CL A 663,327 13,215 0.63 0MML Small Cap Equity Fund EQUITY MONRO INC 1,061,636 26,168 1.01 0MML Small Cap Equity Fund EQUITY OCEANFIRST FINANCIAL CORP 659,269 48,157 0.63 0MML Small Cap Equity Fund EQUITY REPLIGEN CORP 1,023,928 6,940 0.97 0MML Small Cap Equity Fund EQUITY SCHWEITZER MAUDUIT INTL INC 594,064 19,548 0.56 0MML Small Cap Equity Fund EQUITY SOUTH JERSEY INDUSTRIES 1,432,204 74,323 1.36 0MML Small Cap Equity Fund EQUITY STIFEL FINANCIAL CORP 1,230,681 24,341 1.17 0MML Small Cap Equity Fund EQUITY WSFS FINANCIAL CORP 1,656,983 61,438 1.57 0MML Small Cap Equity Fund EQUITY CACI INTERNATIONAL INC CL A 1,460,785 6,853 1.39 0MML Small Cap Equity Fund EQUITY SEMTECH CORP 1,828,603 34,528 1.74 0MML Small Cap Equity Fund EQUITY VALMONT INDUSTRIES 597,678 4,813 0.57 0MML Small Cap Equity Fund EQUITY BOTTOMLINE TECHNOLOGIES (DE) 1,520,416 36,063 1.44 0MML Small Cap Equity Fund EQUITY JACK IN THE BOX INC 1,482,859 18,697 1.41 0MML Small Cap Equity Fund EQUITY MKS INSTRUMENTS INC 1,759,477 16,108 1.67 0MML Small Cap Equity Fund EQUITY ORASURE TECHNOLOGIES INC 391,095 32,136 0.37 0MML Small Cap Equity Fund EQUITY BIG LOTS INC 610,842 13,696 0.58 0MML Small Cap Equity Fund EQUITY PACIFIC PREMIER BANCORP INC 989,035 49,108 0.94 0MML Small Cap Equity Fund EQUITY FOOT LOCKER INC 514,013 15,562 0.49 0MML Small Cap Equity Fund EQUITY ENPRO INDUSTRIES INC 1,016,903 18,027 0.97 0MML Small Cap Equity Fund EQUITY BROOKS AUTOMATION INC 1,411,901 30,521 1.34 0MML Small Cap Equity Fund EQUITY ATRICURE INC 974,917 24,434 0.93 0MML Small Cap Equity Fund EQUITY ACCO BRANDS CORP 1,283,633 221,316 1.22 0MML Small Cap Equity Fund EQUITY DORMAN PRODUCTS INC 1,494,343 16,534 1.42 0MML Small Cap Equity Fund EQUITY KAISER ALUMINUM CORP 807,119 15,061 0.77 0MML Small Cap Equity Fund EQUITY CHART INDUSTRIES INC 1,094,666 15,578 1.04 0MML Small Cap Equity Fund EQUITY EMERGENT BIOSOLUTIONS INC 2,036,634 19,710 1.93 0MML Small Cap Equity Fund EQUITY KBR INC 1,586,062 70,933 1.51 0MML Small Cap Equity Fund EQUITY NEOGENOMICS INC 988,652 26,800 0.94 0MML Small Cap Equity Fund EQUITY ADDUS HOMECARE CORP 1,604,402 16,976 1.52 0MML Small Cap Equity Fund EQUITY CIT GROUP INC 572,493 32,326 0.54 0MML Small Cap Equity Fund EQUITY ENVESTNET INC 865,890 11,222 0.82 0MML Small Cap Equity Fund EQUITY VISTEON CORP 1,669,863 24,124 1.58 0MML Small Cap Equity Fund EQUITY BANKUNITED INC 1,020,634 46,583 0.97 0MML Small Cap Equity Fund EQUITY WENDY S CO/THE 1,219,024 54,677 1.16 0MML Small Cap Equity Fund EQUITY J2 GLOBAL INC 1,683,777 24,325 1.60 0MML Small Cap Equity Fund EQUITY ZYNGA INC CL A 925,142 101,441 0.88 0MML Small Cap Equity Fund EQUITY RENEWABLE ENERGY GROUP INC 2,775,757 51,961 2.63 0MML Small Cap Equity Fund EQUITY REXNORD CORP 1,917,847 64,271 1.82 0MML Small Cap Equity Fund EQUITY TENET HEALTHCARE CORP 765,741 31,242 0.73 0MML Small Cap Equity Fund EQUITY EPR PROPERTIES 1,026,300 37,320 0.97 0MML Small Cap Equity Fund EQUITY MASONITE INTERNATIONAL CORP 1,503,552 15,280 1.43 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Small Cap Equity Fund EQUITY STERLING BANCORP/DE 647,990 61,596 0.62 0MML Small Cap Equity Fund EQUITY UNIQURE NV 402,331 10,924 0.38 0MML Small Cap Equity Fund EQUITY PAYLOCITY HOLDING CORP 708,957 4,392 0.67 0MML Small Cap Equity Fund EQUITY Q2 HOLDINGS INC 1,520,392 16,660 1.44 0MML Small Cap Equity Fund EQUITY INTERSECT ENT INC 393,430 24,122 0.37 0MML Small Cap Equity Fund EQUITY SUMMIT MATERIALS INC CL A 920,219 55,636 0.87 0MML Small Cap Equity Fund EQUITY NATIONAL STORAGE AFFILIATES 1,136,705 34,751 1.08 0MML Small Cap Equity Fund EQUITY COLLEGIUM PHARMACEUTICAL INC 624,267 29,984 0.59 0MML Small Cap Equity Fund EQUITY ENERGIZER HOLDINGS INC 1,084,217 27,701 1.03 0MML Small Cap Equity Fund EQUITY TOPBUILD CORP 1,715,947 10,053 1.63 0MML Small Cap Equity Fund EQUITY OLLIE S BARGAIN OUTLET HOLDI 479,726 5,492 0.46 0MML Inflation-Protected and Income Fund FIXED INCOME STARWOOD MORTGAGE RESIDENTIAL 932,072 919,707 0.11 2.916 9/27/2049MML Inflation-Protected and Income Fund FIXED INCOME PFS FINANCING CORP. 400,256 400,000 0.05 0.70238 9/15/2023MML Inflation-Protected and Income Fund FIXED INCOME PFS FINANCING CORP. 896,650 900,000 0.10 0.95238 9/15/2023MML Inflation-Protected and Income Fund FIXED INCOME TSY INFL IX N/B 6,645,229 6,260,202 0.75 0.125 10/15/2024MML Inflation-Protected and Income Fund FIXED INCOME DEEPHAVEN RESIDENTIAL MORTGAGE 1,296,900 1,284,010 0.15 4.285 10/25/2058MML Inflation-Protected and Income Fund FIXED INCOME COMMONBOND STUDENT LOAN TRUST 39,288 39,027 0.00 4.35 2/25/2046MML Inflation-Protected and Income Fund FIXED INCOME TESLA AUTO LEASE TRUST 4,854,736 4,809,751 0.55 3.71 8/20/2021MML Inflation-Protected and Income Fund FIXED INCOME TSY INFL IX N/B 2,390,888 2,051,920 0.27 0.875 1/15/2029MML Inflation-Protected and Income Fund FIXED INCOME NEW RESIDENTIAL MORTGAGE LOAN 881,058 866,104 0.10 3.92798 1/25/2049MML Inflation-Protected and Income Fund FIXED INCOME DRIVE AUTO RECEIVABLES TRUST 991,099 963,000 0.11 3.78 4/15/2025MML Inflation-Protected and Income Fund FIXED INCOME EXETER AUTOMOBILE RECEIVABLES 228,020 227,452 0.03 3.45 2/15/2023MML Inflation-Protected and Income Fund FIXED INCOME CAMB COMMERCIAL MORTGAGE TRUST 302,014 308,865 0.03 1.90238 12/15/2037MML Inflation-Protected and Income Fund FIXED INCOME AVIS BUDGET RENTAL CAR FUNDING 392,901 388,000 0.04 4.53 3/20/2023MML Inflation-Protected and Income Fund FIXED INCOME MARLETTE FUNDING TRUST 5,191,512 5,139,459 0.59 3.44 4/16/2029MML Inflation-Protected and Income Fund FIXED INCOME DEEPHAVEN RESIDENTIAL MORTGAGE 184,932 182,923 0.02 3.948 1/25/2059MML Inflation-Protected and Income Fund FIXED INCOME VERUS SECURITIZATION TRUST 1,869,457 1,848,279 0.21 3.836 2/25/2059MML Inflation-Protected and Income Fund FIXED INCOME VERUS SECURITIZATION TRUST 4,316,726 4,257,297 0.49 4.04 2/25/2059MML Inflation-Protected and Income Fund FIXED INCOME AMERICAN CREDIT ACCEPTANCE REC 1,328,946 1,300,000 0.15 3.5 4/14/2025MML Inflation-Protected and Income Fund FIXED INCOME SEQUOIA MORTGAGE TRUST 225,126 223,333 0.03 4 2/25/2048MML Inflation-Protected and Income Fund FIXED INCOME TSY INFL IX N/B 2,176,714 1,575,723 0.25 1 2/15/2048MML Inflation-Protected and Income Fund FIXED INCOME BCC FUNDING CORP 116,516 116,391 0.01 2.96 6/20/2023MML Inflation-Protected and Income Fund FIXED INCOME SEQUOIA MORTGAGE TRUST 359,092 358,028 0.04 3.5 3/25/2048MML Inflation-Protected and Income Fund FIXED INCOME PNMAC GMSR ISSUER TRUST 429,446 440,000 0.05 2.99813 2/25/2023MML Inflation-Protected and Income Fund FIXED INCOME TLF NATIONAL TAX LIEN TRUST 441,648 438,755 0.05 3.09 12/15/2029MML Inflation-Protected and Income Fund FIXED INCOME VERIZON OWNER TRUST 828,564 822,587 0.09 2.82 9/20/2022MML Inflation-Protected and Income Fund FIXED INCOME PSMC TRUST 327,994 324,511 0.04 3.5 2/25/2048MML Inflation-Protected and Income Fund FIXED INCOME JP MORGAN MORTGAGE TRUST 463,826 460,642 0.05 3.5 9/25/2048MML Inflation-Protected and Income Fund FIXED INCOME CHESAPEAKE FUNDING II LLC 439,586 439,174 0.05 0.60238 4/15/2030MML Inflation-Protected and Income Fund FIXED INCOME ELFI GRADUATE LOAN PROGRAM 403,337 406,341 0.05 0.89813 8/25/2042MML Inflation-Protected and Income Fund FIXED INCOME TSY INFL IX N/B 3,219,209 3,076,673 0.37 0.625 4/15/2023MML Inflation-Protected and Income Fund FIXED INCOME WESTGATE RESORTS 347,708 350,008 0.04 3.38 12/20/2031MML Inflation-Protected and Income Fund FIXED INCOME HERTZ FLEET LEASE FUNDING LP 1,196,459 1,196,340 0.14 0.6555 5/10/2032MML Inflation-Protected and Income Fund FIXED INCOME LENDMARK FUNDING TRUST 641,818 630,000 0.07 3.81 12/21/2026MML Inflation-Protected and Income Fund FIXED INCOME SMB PRIVATE EDUCATION LOAN TRU 209,882 212,255 0.02 0.50238 2/16/2026MML Inflation-Protected and Income Fund FIXED INCOME SMB PRIVATE EDUCATION LOAN TRU 1,618,321 1,639,000 0.18 1.02238 7/15/2036MML Inflation-Protected and Income Fund FIXED INCOME SIERRA RECEIVABLES FUNDING CO 496,623 494,619 0.06 3.77 1/20/2036MML Inflation-Protected and Income Fund FIXED INCOME SIERRA RECEIVABLES FUNDING CO 432,047 447,513 0.05 4.75 1/20/2036

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Inflation-Protected and Income Fund FIXED INCOME AVANT LOANS FUNDING TRUST 49,680 49,664 0.01 3.48 7/15/2022MML Inflation-Protected and Income Fund FIXED INCOME LCM LTD PARTNERSHIP 1,296,173 1,300,000 0.15 1.515 7/15/2027MML Inflation-Protected and Income Fund FIXED INCOME FCI FUNDING, LLC 195,701 192,341 0.02 3.63 2/18/2031MML Inflation-Protected and Income Fund FIXED INCOME FANNIE MAE CAS 669,138 670,903 0.08 2.29813 9/25/2031MML Inflation-Protected and Income Fund FIXED INCOME NAVIENT STUDENT LOAN TRUST 3,390,324 3,387,000 0.38 1.14813 2/27/2068MML Inflation-Protected and Income Fund FIXED INCOME TSY INFL IX N/B 2,944,679 2,773,332 0.33 0.5 4/15/2024MML Inflation-Protected and Income Fund FIXED INCOME STRUCTURED ASSET SECURITIES CO 1,110,339 1,165,614 0.13 0.94813 11/25/2035MML Inflation-Protected and Income Fund FIXED INCOME MARLETTE FUNDING TRUST 3,520,932 3,483,712 0.40 3.13 7/16/2029MML Inflation-Protected and Income Fund FIXED INCOME MARLETTE FUNDING TRUST 392,547 385,000 0.04 3.53 7/16/2029MML Inflation-Protected and Income Fund FIXED INCOME KNDL MORTGAGE TRUST 470,796 476,000 0.05 1.95238 5/15/2036MML Inflation-Protected and Income Fund FIXED INCOME HERTZ VEHICLE FINANCING LLC 2,442,035 2,525,000 0.28 4.26 5/25/2025MML Inflation-Protected and Income Fund FIXED INCOME ANGEL OAK MORTGAGE TRUST 1,165,630 1,153,744 0.13 3.238 5/25/2059MML Inflation-Protected and Income Fund FIXED INCOME SMB PRIVATE EDUCATION LOAN TRU 153,793 153,909 0.02 0.50238 7/15/2026MML Inflation-Protected and Income Fund FIXED INCOME NAVISTAR FINANCIAL DEALER NOTE 1,293,231 1,300,000 0.15 1.09813 5/25/2024MML Inflation-Protected and Income Fund FIXED INCOME NAVISTAR FINANCIAL DEALER NOTE 5,693,922 5,700,000 0.65 0.78813 5/25/2024MML Inflation-Protected and Income Fund FIXED INCOME NAVISTAR FINANCIAL DEALER NOTE 2,993,032 3,000,000 0.34 0.89813 5/25/2024MML Inflation-Protected and Income Fund FIXED INCOME SOFI ALTERNATIVE TRUST 1,731,194 1,610,413 0.20 4.860709 1/25/2045MML Inflation-Protected and Income Fund FIXED INCOME MARLETTE FUNDING TRUST 2,342,104 2,321,822 0.27 2.69 9/17/2029MML Inflation-Protected and Income Fund FIXED INCOME TSY INFL IX N/B 4,362,706 3,899,126 0.50 0.25 7/15/2029MML Inflation-Protected and Income Fund FIXED INCOME VERUS SECURITIZATION TRUST 914,165 894,965 0.10 3.219 7/25/2059MML Inflation-Protected and Income Fund FIXED INCOME EXETER AUTOMOBILE RECEIVABLES 128,677 128,520 0.01 2.59 9/15/2022MML Inflation-Protected and Income Fund FIXED INCOME OSCAR US FUNDING TRUST 683,025 678,440 0.08 2.49 8/10/2022MML Inflation-Protected and Income Fund FIXED INCOME LAUREL ROAD PRIME STUDENT LOAN 544,941 556,347 0.06 2.34 10/25/2048MML Inflation-Protected and Income Fund FIXED INCOME SOCIAL PROFESSIONAL LOAN PROGR 1,068,806 1,061,511 0.12 2.13 11/16/2048MML Inflation-Protected and Income Fund FIXED INCOME BRAVO RESIDENTIAL FUNDING TRUS 6,726,920 6,626,095 0.76 2.666 7/25/2059MML Inflation-Protected and Income Fund FIXED INCOME NP SPE IX LP 343,255 345,659 0.04 2.574 9/20/2049MML Inflation-Protected and Income Fund FIXED INCOME CITIGROUP MORTGAGE LOAN TRUST 973,447 976,492 0.11 3.03 7/25/2049MML Inflation-Protected and Income Fund FIXED INCOME AVANT LOANS FUNDING TRUST 851,282 848,091 0.10 2.72 10/15/2026MML Inflation-Protected and Income Fund FIXED INCOME NAVIENT STUDENT LOAN TRUST 2,554,351 2,900,000 0.29 1.69813 7/25/2068MML Inflation-Protected and Income Fund FIXED INCOME CIM TRUST 3,254,985 3,255,113 0.37 1.12513 8/25/2049MML Inflation-Protected and Income Fund FIXED INCOME BX COMMERCIAL MORTGAGE TRUST 2 1,641,658 1,661,271 0.19 2.15238 10/15/2036MML Inflation-Protected and Income Fund FIXED INCOME SLM STUDENT LOAN TRUST 322,064 360,234 0.04 0.4545 10/25/2040MML Inflation-Protected and Income Fund FIXED INCOME DRB PRIME STUDENT LOAN TRUST 783,565 781,663 0.09 2.04813 10/25/2044MML Inflation-Protected and Income Fund FIXED INCOME NAVIENT STUDENT LOAN TRUST 2,219,235 2,200,000 0.25 1.44813 3/25/2066MML Inflation-Protected and Income Fund FIXED INCOME ORANGE LAKE TIMESHARE TRUST 175,004 174,645 0.02 2.61 3/8/2029MML Inflation-Protected and Income Fund FIXED INCOME ECMC GROUP STUDENT LOAN TRUST 1,316,159 1,323,486 0.15 1.34813 12/27/2066MML Inflation-Protected and Income Fund FIXED INCOME AVERY POINT CLO LTD 480,772 481,146 0.05 1.3445 4/25/2026MML Inflation-Protected and Income Fund FIXED INCOME WESTGATE RESORTS 234,313 235,027 0.03 3.05 12/20/2030MML Inflation-Protected and Income Fund FIXED INCOME NAVIENT STUDENT LOAN TRUST 755,247 758,627 0.09 0.74813 7/26/2066MML Inflation-Protected and Income Fund FIXED INCOME CARMAX AUTO OWNER TRUST 2,443,497 2,400,000 0.28 3.39 10/16/2023MML Inflation-Protected and Income Fund FIXED INCOME CITIBANK CREDIT CARD ISSUANCE 1,097,852 1,100,000 0.12 0.92113 5/14/2029MML Inflation-Protected and Income Fund FIXED INCOME AASET 2017 1 TRUST 143,949 159,224 0.02 3.967 5/16/2042MML Inflation-Protected and Income Fund FIXED INCOME SOFI CONSUMER LOAN PROGRAM TRU 242,469 240,815 0.03 2.5 5/26/2026MML Inflation-Protected and Income Fund FIXED INCOME TSY INFL IX N/B 58,881 52,952 0.01 0.375 7/15/2027MML Inflation-Protected and Income Fund FIXED INCOME TRIP RAIL MASTER FUNDING LLC 88,509 88,430 0.01 2.709 8/15/2047MML Inflation-Protected and Income Fund FIXED INCOME DEUTSCHE BANK COMMERCIAL MORTG 529,512 525,324 0.06 1.907 6/10/2050MML Inflation-Protected and Income Fund FIXED INCOME MVW OWNER TRUST 75,174 73,734 0.01 2.42 12/20/2034MML Inflation-Protected and Income Fund FIXED INCOME SLM STUDENT LOAN TRUST 2,051,448 2,100,000 0.23 0.8445 10/25/2065

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Inflation-Protected and Income Fund FIXED INCOME HERTZ VEHICLE FINANCING LLC 2,508,826 2,530,000 0.28 3.56 10/25/2021MML Inflation-Protected and Income Fund FIXED INCOME NEXTGEAR FLOORPLAN MASTER OWNE 2,000,200 2,000,000 0.23 0.83238 10/17/2022MML Inflation-Protected and Income Fund FIXED INCOME SOFI CONSUMER LOAN PROGRAM TRU 268,037 266,018 0.03 2.82 11/25/2026MML Inflation-Protected and Income Fund FIXED INCOME NEUBERGER BERMAN CLO LTD 2,303,497 2,320,782 0.26 1.075 1/15/2028MML Inflation-Protected and Income Fund FIXED INCOME CARLYLE GLOBAL MARKET STRATEGI 1,972,986 1,997,380 0.22 1.16175 1/18/2029MML Inflation-Protected and Income Fund FIXED INCOME OCP CLO LTD 1,649,619 1,660,390 0.19 1.0645 10/26/2027MML Inflation-Protected and Income Fund FIXED INCOME ONEMAIN DIRECT AUTO RECEIVABLE 6,464,132 6,459,490 0.73 2.82 7/15/2024MML Inflation-Protected and Income Fund FIXED INCOME ONEMAIN DIRECT AUTO RECEIVABLE 968,092 968,000 0.11 4.74 11/14/2025MML Inflation-Protected and Income Fund FIXED INCOME AIMCO 2,314,005 2,328,639 0.26 1.125 1/15/2028MML Inflation-Protected and Income Fund FIXED INCOME JP MORGAN MORTGAGE TRUST 316,972 313,270 0.04 3.5 12/25/2048MML Inflation-Protected and Income Fund OPTIONS BM1106004 SWAPTION 631,717 22,880,000 0.07 0 12/13/2032MML Inflation-Protected and Income Fund OPTIONS BM1106277 SWAPTION 249,612 1,967,000 0.03 0 12/13/2032MML Inflation-Protected and Income Fund FIXED INCOME EDLINC STUDENT LOAN FUNDING TR 622,110 629,548 0.07 3.6 12/1/2047MML Inflation-Protected and Income Fund FIXED INCOME TSY INFL IX N/B 1,503,143 1,339,056 0.17 0.5 1/15/2028MML Inflation-Protected and Income Fund FIXED INCOME MARLETTE FUNDING TRUST 3,019,986 3,010,145 0.34 3.69 3/15/2028MML Inflation-Protected and Income Fund FIXED INCOME JP MORGAN MORTGAGE TRUST 251,939 251,440 0.03 3.5 6/25/2048MML Inflation-Protected and Income Fund FIXED INCOME NAVIENT STUDENT LOAN TRUST 1,109,251 1,120,000 0.13 0.86813 3/25/2067MML Inflation-Protected and Income Fund FIXED INCOME DEEPHAVEN RESIDENTIAL MORTGAGE 260,856 259,239 0.03 2.976 12/25/2057MML Inflation-Protected and Income Fund FIXED INCOME DEEPHAVEN RESIDENTIAL MORTGAGE 260,991 259,239 0.03 3.027 12/25/2057MML Inflation-Protected and Income Fund OPTIONS BM1107838 SWAPTION 311,603 12,590,000 0.04 0 1/31/2033MML Inflation-Protected and Income Fund FIXED INCOME FLAGSHIP CREDIT AUTO TRUST 248,633 247,588 0.03 2.71 11/15/2022MML Inflation-Protected and Income Fund FIXED INCOME NELNET PRIVATE EDUCATION LOAN 236,752 247,858 0.03 1.89813 12/26/2040MML Inflation-Protected and Income Fund FIXED INCOME SOCIAL PROFESSIONAL LOAN PROGR 220,059 220,297 0.02 0.84813 3/26/2040MML Inflation-Protected and Income Fund FIXED INCOME NAVIENT STUDENT LOAN TRUST 410,000 410,000 0.05 1.29813 7/26/2066MML Inflation-Protected and Income Fund FIXED INCOME TSY INFL IX N/B 1,286,797 965,862 0.15 0.875 2/15/2047MML Inflation-Protected and Income Fund FIXED INCOME SOFI CONSUMER LOAN PROGRAM TRU 56,057 56,084 0.01 3.28 2/25/2026MML Inflation-Protected and Income Fund FIXED INCOME SEQUOIA MORTGAGE TRUST 761,322 752,314 0.09 4 6/25/2048MML Inflation-Protected and Income Fund FIXED INCOME FLAGSHIP CREDIT AUTO TRUST 341,444 340,201 0.04 2.97 10/17/2022MML Inflation-Protected and Income Fund FIXED INCOME ARBOR REALTY COLLATERALIZED LO 770,274 780,000 0.09 1.30238 6/15/2028MML Inflation-Protected and Income Fund FIXED INCOME DEEPHAVEN RESIDENTIAL MORTGAGE 873,761 863,812 0.10 3.479 4/25/2058MML Inflation-Protected and Income Fund FIXED INCOME SMB PRIVATE EDUCATION LOAN TRU 1,289,033 1,302,832 0.15 0.87238 1/15/2037MML Inflation-Protected and Income Fund FIXED INCOME JP MORGAN CHASE COMMERCIAL MOR 1,303,473 1,364,866 0.15 1.15238 6/15/2032MML Inflation-Protected and Income Fund FIXED INCOME CPS AUTO TRUST 25,914 25,894 0.00 3.43 7/15/2022MML Inflation-Protected and Income Fund FIXED INCOME TSY INFL IX N/B 2,586,684 2,244,665 0.29 0.75 7/15/2028MML Inflation-Protected and Income Fund FIXED INCOME BHMS MORTGAGE TRUST 1,576,794 1,700,000 0.18 1.65238 7/15/2035MML Inflation-Protected and Income Fund FIXED INCOME ONEMAIN DIRECT AUTO RECEIVABLE 508,957 502,338 0.06 3.43 12/16/2024MML Inflation-Protected and Income Fund FIXED INCOME PLANET FITNESS MASTER ISSUER L 2,351,050 2,352,000 0.27 4.262 9/5/2048MML Inflation-Protected and Income Fund FIXED INCOME SEQUOIA MORTGAGE TRUST 160,432 159,570 0.02 4 8/25/2048MML Inflation-Protected and Income Fund FIXED INCOME MARLETTE FUNDING TRUST 3,225,626 3,204,834 0.37 3.86 9/15/2028MML Inflation-Protected and Income Fund EQUITY SWAPS BARCLAYS BOC (890,000) (890,000) 0.10 0MML Inflation-Protected and Income Fund FIXED INCOME CCG RECEIVABLES TRUST 368,695 367,942 0.04 3.09 12/15/2025MML Inflation-Protected and Income Fund FIXED INCOME AMERICAN CREDIT ACCEPTANCE REC 2,764,000 2,741,364 0.31 3.75 10/15/2024MML Inflation-Protected and Income Fund FIXED INCOME BX TRUST 1,569,255 1,582,000 0.18 1.85238 11/15/2035MML Inflation-Protected and Income Fund FIXED INCOME AASET 2018 2 TRUST 1,479,986 1,591,266 0.17 4.454 11/18/2038MML Inflation-Protected and Income Fund FIXED INCOME KREF 2018 FL1 LTD. 2,353,717 2,450,000 0.27 2.7005 6/15/2036MML Inflation-Protected and Income Fund FIXED INCOME KREF 2018 FL1 LTD. 3,951,898 3,980,000 0.45 1.2505 6/15/2036MML Inflation-Protected and Income Fund FIXED INCOME KREF 2018 FL1 LTD. 1,981,436 2,000,000 0.22 1.5005 6/15/2036MML Inflation-Protected and Income Fund FIXED INCOME TSY INFL IX N/B 3,271,403 2,817,377 0.37 2.375 1/15/2025

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Inflation-Protected and Income Fund FIXED INCOME ASSET BACKED SECURITIES CORP H 180,441 181,549 0.02 0.31813 3/25/2036MML Inflation-Protected and Income Fund FIXED INCOME SLM STUDENT LOAN TRUST 463,575 464,578 0.05 0.72038 9/15/2033MML Inflation-Protected and Income Fund FIXED INCOME SLM STUDENT LOAN TRUST 244,410 275,194 0.03 0.7145 10/25/2064MML Inflation-Protected and Income Fund FIXED INCOME SLM STUDENT LOAN TRUST 357,528 396,506 0.04 0.7045 1/25/2040MML Inflation-Protected and Income Fund FIXED INCOME NELNET STUDENT LOAN TRUST 549,271 643,394 0.06 0.4445 1/25/2038MML Inflation-Protected and Income Fund FIXED INCOME SAXON ASSET SECURITIES TRUST 1,290,675 1,303,420 0.15 0.29813 9/25/2036MML Inflation-Protected and Income Fund FIXED INCOME BANC OF AMERICA FUNDING CORPOR 1,159,385 1,169,119 0.13 0.59625 7/20/2036MML Inflation-Protected and Income Fund FIXED INCOME SLC STUDENT LOAN TRUST 990,660 1,140,814 0.11 0.48038 12/15/2039MML Inflation-Protected and Income Fund FIXED INCOME KEYCORP STUDENT LOAN TRUST 1,578,384 1,600,367 0.18 0.96325 9/27/2038MML Inflation-Protected and Income Fund FIXED INCOME OPTEUM MORTGAGE ACCEPTANCE COR 935,861 970,575 0.11 0.45813 11/25/2035MML Inflation-Protected and Income Fund FIXED INCOME SLM STUDENT LOAN TRUST 228,226 233,572 0.03 0.5445 7/25/2025MML Inflation-Protected and Income Fund FIXED INCOME SLM STUDENT LOAN TRUST 332,055 335,074 0.04 0.3845 10/25/2028MML Inflation-Protected and Income Fund FIXED INCOME SLM STUDENT LOAN TRUST 318,908 358,713 0.04 0.5545 1/25/2055MML Inflation-Protected and Income Fund FIXED INCOME SLM STUDENT LOAN TRUST 355,065 397,070 0.04 0.4645 1/25/2041MML Inflation-Protected and Income Fund FIXED INCOME SLM STUDENT LOAN TRUST 302,190 338,641 0.03 0.4445 1/25/2070MML Inflation-Protected and Income Fund FIXED INCOME SLC STUDENT LOAN TRUST 1,505,618 1,721,727 0.17 0.53038 3/15/2040MML Inflation-Protected and Income Fund FIXED INCOME NELNET STUDENT LOAN TRUST 262,711 303,665 0.03 0.475 6/25/2041MML Inflation-Protected and Income Fund FIXED INCOME NELNET STUDENT LOAN TRUST 729,007 854,830 0.08 0.39538 3/23/2037MML Inflation-Protected and Income Fund FIXED INCOME BRAZOS HIGHER ED AUTH INC 1,143,768 1,200,000 0.13 1.656 6/25/2042MML Inflation-Protected and Income Fund FIXED INCOME FED HM LN PC POOL 1Q0239 181,891 172,609 0.02 3.823 3/1/2037MML Inflation-Protected and Income Fund FIXED INCOME 321 HENDERSON RECEIVABLES LLC 523,572 542,194 0.06 0.35238 3/15/2042MML Inflation-Protected and Income Fund EQUITY SWAP GOLDMAN SACHS BOC (1,680,000) (1,680,000) 0.19 0MML Inflation-Protected and Income Fund FIXED INCOME 321 HENDERSON RECEIVABLES LLC 114,942 117,161 0.01 0.35238 9/15/2041MML Inflation-Protected and Income Fund FIXED INCOME 321 HENDERSON RECEIVABLES LLC 128,649 130,157 0.01 0.35238 12/15/2041MML Inflation-Protected and Income Fund FIXED INCOME BRAZOS TX HGR EDU AUTH 935,195 947,470 0.11 0.345 6/25/2026MML Inflation-Protected and Income Fund EQUITY SWAP CREDIT SUISSE BOC (250,000) (250,000) 0.03 0MML Inflation-Protected and Income Fund FIXED INCOME JP MORGAN STUDENT LOAN TRUST 416,318 464,342 0.05 0.59675 6/28/2039MML Inflation-Protected and Income Fund FIXED INCOME SLM STUDENT LOAN TRUST 369,211 401,945 0.04 0.90038 12/15/2038MML Inflation-Protected and Income Fund FIXED INCOME GOAL CAPITAL FUNDING TRUST 243,161 247,778 0.03 0.95 8/25/2048MML Inflation-Protected and Income Fund FIXED INCOME TSY INFL IX N/B 2,023,555 1,301,256 0.23 2.125 2/15/2041MML Inflation-Protected and Income Fund FIXED INCOME COLLEGE LOAN CORPORATION TRUST 372,107 414,274 0.04 0.765 1/15/2037MML Inflation-Protected and Income Fund FIXED INCOME LOUISIANA ST PUBLIC FACS AUTH 24,811 24,791 0.00 1.1445 4/26/2027MML Inflation-Protected and Income Fund FIXED INCOME FIRST FRANKLIN MTG LOAN ASSET 1,212,743 1,236,863 0.14 0.50813 10/25/2035MML Inflation-Protected and Income Fund FIXED INCOME TSY INFL IX N/B 2,085,493 1,690,155 0.24 0.625 2/15/2043MML Inflation-Protected and Income Fund FIXED INCOME CHASE EDUCATION LOAN TRUST 3,087,020 3,247,090 0.35 0.33325 6/28/2039MML Inflation-Protected and Income Fund FIXED INCOME TSY INFL IX N/B 2,241,832 2,109,494 0.25 0.625 1/15/2024MML Inflation-Protected and Income Fund FIXED INCOME TSY INFL IX N/B 2,691,869 1,889,635 0.31 1.375 2/15/2044MML Inflation-Protected and Income Fund FIXED INCOME NELNET STUDENT LOAN TRUST 355,049 375,000 0.04 1.64813 6/25/2041MML Inflation-Protected and Income Fund FIXED INCOME 321 HENDERSON RECEIVABLES LLC 212,654 216,155 0.02 0.35238 3/15/2041MML Inflation-Protected and Income Fund FIXED INCOME SMB PRIVATE EDUCATION LOAN TRU 664,483 663,018 0.08 1.30238 5/15/2026MML Inflation-Protected and Income Fund FIXED INCOME SMB PRIVATE EDUCATION LOAN TRU 150,353 148,811 0.02 3.05 5/15/2026MML Inflation-Protected and Income Fund FIXED INCOME 321 HENDERSON RECEIVABLES LLC 980,587 1,014,003 0.11 0.35238 6/15/2041MML Inflation-Protected and Income Fund FIXED INCOME NAVIENT STUDENT LOAN TRUST 335,356 334,696 0.04 1.35238 12/15/2028MML Inflation-Protected and Income Fund FIXED INCOME TSY INFL IX N/B 5,602,068 5,249,952 0.64 0.25 1/15/2025MML Inflation-Protected and Income Fund FIXED INCOME TSY INFL IX N/B 2,454,342 1,925,210 0.28 0.75 2/15/2045MML Inflation-Protected and Income Fund FIXED INCOME EDUCATIONAL SERVICES OF AMERIC 347,183 356,321 0.04 0.94813 10/25/2056MML Inflation-Protected and Income Fund FIXED INCOME TSY INFL IX N/B 2,158,735 1,988,186 0.25 0.375 7/15/2025MML Inflation-Protected and Income Fund FIXED INCOME ELARA HGV TIMESHARE ISSUER 107,252 107,407 0.01 3.02 2/25/2027

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Inflation-Protected and Income Fund FIXED INCOME SIERRA RECEIVABLES FUNDING CO 20,279 20,298 0.00 3.08 9/20/2032MML Inflation-Protected and Income Fund FIXED INCOME EDUCATIONAL SERVICES OF AMERIC 983,922 1,000,000 0.11 1.64813 12/25/2058MML Inflation-Protected and Income Fund FIXED INCOME TSY INFL IX N/B 2,674,429 2,425,829 0.30 0.625 1/15/2026MML Inflation-Protected and Income Fund FIXED INCOME DRB PRIME STUDENT LOAN TRUST 171,273 173,115 0.02 2.14813 4/25/2040MML Inflation-Protected and Income Fund FIXED INCOME SOCIAL PROFESSIONAL LOAN PROGR 207,656 206,180 0.02 1.89813 8/25/2036MML Inflation-Protected and Income Fund FIXED INCOME NELNET STUDENT LOAN TRUST 967,833 1,028,313 0.11 0.5945 10/25/2040MML Inflation-Protected and Income Fund FIXED INCOME EARNEST STUDENT LOAN PROGRAM L 126,401 133,993 0.01 2.19813 2/26/2035MML Inflation-Protected and Income Fund FIXED INCOME SOCIAL PROFESSIONAL LOAN PROGR 2,226,559 2,191,320 0.25 2.74 10/25/2032MML Inflation-Protected and Income Fund FIXED INCOME NAVIENT STUDENT LOAN TRUST 58,591 58,643 0.01 0.99813 6/25/2065MML Inflation-Protected and Income Fund FIXED INCOME OXFORD FINANCE FUNDING TRUST 61,113 61,089 0.01 3.968 6/17/2024MML Inflation-Protected and Income Fund FIXED INCOME SOFI CONSUMER LOAN PROGRAM TRU 243,506 241,619 0.03 3.26 8/25/2025MML Inflation-Protected and Income Fund FIXED INCOME TSY INFL IX N/B 2,403,425 2,215,538 0.27 0.125 7/15/2026MML Inflation-Protected and Income Fund FIXED INCOME SOFI CONSUMER LOAN PROGRAM TRU 1,936,085 1,924,674 0.22 4.77 10/27/2025MML Inflation-Protected and Income Fund FIXED INCOME NAVIENT STUDENT LOAN TRUST 1,971,603 1,971,604 0.22 1.39813 6/25/2065MML Inflation-Protected and Income Fund FIXED INCOME ECMC GROUP STUDENT LOAN TRUST 899,896 891,154 0.10 1.49813 7/26/2066MML Inflation-Protected and Income Fund CASH EQUIVALENT DOMINION RESOURCES 2,999,453 3,000,000 0.34 0 11/3/2020MML Inflation-Protected and Income Fund FIXED INCOME FREDDIE MAC STACR 9,616,151 9,600,000 1.09 1.64813 6/25/2050MML Inflation-Protected and Income Fund FIXED INCOME AFFIRM ASSET SECURITIZATION TR 2,903,743 2,884,761 0.33 3.46 10/15/2024MML Inflation-Protected and Income Fund FIXED INCOME AMERICREDIT AUTOMOBILE RECEIVA 3,450,196 3,444,000 0.39 0.6 12/18/2023MML Inflation-Protected and Income Fund FIXED INCOME SANTANDER DRIVE AUTO RECEIVABL 4,679,850 4,674,000 0.53 0.62 5/15/2023MML Inflation-Protected and Income Fund FIXED INCOME TSY INFL IX N/B 2,135,533 1,919,760 0.24 0.125 7/15/2030MML Inflation-Protected and Income Fund CASH EQUIVALENT HARLEY-DAVIDSON FND CP 2,999,669 3,000,000 0.34 0 10/19/2020MML Inflation-Protected and Income Fund CASH EQUIVALENT AVANGRID INC 999,898 1,000,000 0.11 0 10/20/2020MML Inflation-Protected and Income Fund FIXED INCOME BM1174440 TRS USD P F .28999 (42,656,014) (42,656,014) 4.84 0.29 1/29/2021MML Inflation-Protected and Income Fund EQUITY BM1174440 TRS USD R E 42,962,539 123,929 4.88 0MML Inflation-Protected and Income Fund EQUITY BM1174457 TRS USD R E 54,201,404 156,349 6.15 0MML Inflation-Protected and Income Fund FIXED INCOME BM1174457 TRS USD P F .28999 (53,814,689) (53,814,689) 6.11 0.289999 1/29/2021MML Inflation-Protected and Income Fund FIXED INCOME SCF EQUIPMENT TRUST LLC 1,581,913 1,579,000 0.18 0.68 10/20/2025MML Inflation-Protected and Income Fund CASH EQUIVALENT SCHLUMBERGER HOLDINGS 999,671 1,000,000 0.11 0 1/11/2021MML Inflation-Protected and Income Fund FIXED INCOME FREDDIE MAC STACR 5,055,288 5,040,000 0.57 1.64813 8/25/2050MML Inflation-Protected and Income Fund FIXED INCOME BM1174853 IRS USD P F 1.83250 (3,003,500) (3,000,000) 0.34 1.8325 8/28/2023MML Inflation-Protected and Income Fund FIXED INCOME BM1174853 IRS USD R V 12MUSCPI 3,000,000 3,000,000 0.34 1 8/28/2023MML Inflation-Protected and Income Fund FIXED INCOME BM1174861 IRS USD R V 12MUSCPI 2,000,000 2,000,000 0.23 1 8/28/2025MML Inflation-Protected and Income Fund FIXED INCOME BM1174861 IRS USD P F 1.88000 (2,003,660) (2,000,000) 0.23 1.88 8/28/2025MML Inflation-Protected and Income Fund CASH EQUIVALENT DOMINION RESOURCES 999,937 1,000,000 0.11 0 10/13/2020MML Inflation-Protected and Income Fund EQUITY BM1175132 TRS USD R E 64,555,376 186,216 7.33 0MML Inflation-Protected and Income Fund FIXED INCOME BM1175132 TRS USD P F .29999 (64,794,997) (64,794,997) 7.36 0.3 2/26/2021MML Inflation-Protected and Income Fund EQUITY BM1175140 TRS USD R E 53,796,147 155,180 6.11 0MML Inflation-Protected and Income Fund FIXED INCOME BM1175140 TRS USD P F .29999 (53,995,831) (53,995,831) 6.13 0.3 2/26/2021MML Inflation-Protected and Income Fund CASH EQUIVALENT SUNCOR ENERGY INC 3,998,376 4,000,000 0.45 0 12/7/2020MML Inflation-Protected and Income Fund CASH EQUIVALENT NRW. BANK 999,707 1,000,000 0.11 0 12/8/2020MML Inflation-Protected and Income Fund CASH EQUIVALENT NUTRIEN LTD 3,998,076 4,000,000 0.45 0 12/17/2020MML Inflation-Protected and Income Fund FIXED INCOME SIERRA RECEIVABLES FUNDING CO 544,781 579,111 0.06 4.18 8/20/2036MML Inflation-Protected and Income Fund FIXED INCOME SIERRA RECEIVABLES FUNDING CO 2,229,222 2,261,656 0.25 3 8/20/2036MML Inflation-Protected and Income Fund FIXED INCOME MARLETTE FUNDING TRUST 3,718,255 3,683,974 0.42 2.39 12/17/2029MML Inflation-Protected and Income Fund FIXED INCOME WORLD OMNI AUTO RECEIVABLES TR 4,406,131 4,403,494 0.50 0.38238 2/15/2023MML Inflation-Protected and Income Fund FIXED INCOME BM1161561 IRS USD R V 12MUSCPI 1,920,000 1,920,000 0.22 1 11/8/2022MML Inflation-Protected and Income Fund FIXED INCOME BM1161561 IRS USD P F 1.66875 (1,935,200) (1,920,000) 0.22 1.66875 11/8/2022

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Inflation-Protected and Income Fund FIXED INCOME BM1163260 IRS USD R V 12MUSCPI 11,000,000 11,000,000 1.25 1 12/9/2021MML Inflation-Protected and Income Fund FIXED INCOME BM1163260 IRS USD P F 1.64250 (11,077,658) (11,000,000) 1.26 1.6425 12/9/2021MML Inflation-Protected and Income Fund FIXED INCOME TSY INFL IX N/B 5,231,502 4,732,383 0.59 0.125 1/15/2030MML Inflation-Protected and Income Fund FIXED INCOME BX TRUST 1,283,474 1,298,811 0.15 1.75238 12/15/2036MML Inflation-Protected and Income Fund FIXED INCOME ONSLOW BAY FINANCIAL LLC 1,624,272 1,621,699 0.18 1.09813 2/25/2060MML Inflation-Protected and Income Fund FIXED INCOME TSY INFL IX N/B 2,620,195 2,216,786 0.30 0.25 2/15/2050MML Inflation-Protected and Income Fund CASH EQUIVALENT CARNIVAL CORP 5,963,535 6,000,000 0.68 0 11/25/2020MML Inflation-Protected and Income Fund FIXED INCOME TSY INFL IX N/B 640,457 601,758 0.07 0.125 4/15/2025MML Inflation-Protected and Income Fund FUTURE US 10YR ULTRA FUT DEC20 - (3,400,000) 0.00 0 12/21/2020MML Inflation-Protected and Income Fund FUTURE US ULTRA BOND CBT DEC20 - (1,600,000) 0.00 0 12/21/2020MML Inflation-Protected and Income Fund CASH EQUIVALENT TREASURY BILL 2,999,972 3,000,000 0.34 0 10/6/2020MML Inflation-Protected and Income Fund FUTURE US LONG BOND(CBT) DEC20 - 3,600,000 0.00 0 12/21/2020MML Inflation-Protected and Income Fund FUTURE US 5YR NOTE (CBT) DEC20 - 4,800,000 0.00 0 12/31/2020MML Inflation-Protected and Income Fund FUTURE US 2YR NOTE (CBT) DEC20 - 400,000 0.00 0 12/31/2020MML Inflation-Protected and Income Fund CASH EQUIVALENT BP CAPITAL MARKETS PLC 2,999,667 3,000,000 0.34 0 11/2/2020MML Inflation-Protected and Income Fund FIXED INCOME EXETER AUTOMOBILE RECEIVABLES 663,271 661,366 0.08 1.13 8/15/2023MML Inflation-Protected and Income Fund EQUITY BM1172709 TRS USD R E 33,338,554 96,168 3.79 0MML Inflation-Protected and Income Fund FIXED INCOME BM1172709 TRS USD P F .31000 (32,000,000) (32,000,000) 3.63 0.31 10/30/2020MML Inflation-Protected and Income Fund FIXED INCOME BM1173624 IRS USD R V 12MUSCPI 3,000,000 3,000,000 0.34 1 6/22/2022MML Inflation-Protected and Income Fund FIXED INCOME BM1173624 IRS USD P F 1.18000 (2,965,665) (3,000,000) 0.34 1.18 6/22/2022MML Inflation-Protected and Income Fund CASH EQUIVALENT SOCIETE GENERALE 999,983 1,000,000 0.11 0 10/6/2020MML Inflation-Protected and Income Fund FIXED INCOME BM1176254 CDS USD P F 1.00000 (1,837,514) (1,800,000) 0.21 1 12/20/2025MML Inflation-Protected and Income Fund FIXED INCOME BM1176254 CDS USD R V 03MEVENT 1,800,000 1,800,000 0.20 1 12/20/2025MML Inflation-Protected and Income Fund CASH EQUIVALENT DUKE ENERGY CORP 1,998,712 2,000,000 0.23 0 1/5/2021MML Inflation-Protected and Income Fund CASH EQUIVALENT FIXED INC CLEARING CORP.REPO 2,321,040 2,321,040 0.26 0 10/1/2020MML Inflation-Protected and Income Fund FIXED INCOME TSY INFL IX N/B 2,087,066 1,521,606 0.24 3.625 4/15/2028MML Inflation-Protected and Income Fund CASH US DOLLAR (654,846) (654,846) 0.07 0MML Inflation-Protected and Income Fund CASH EURO CURRENCY 7 6 0.00 0MML Inflation-Protected and Income Fund FIXED INCOME TSY INFL IX N/B 5,892,103 4,097,184 0.67 3.875 4/15/2029MML Inflation-Protected and Income Fund FIXED INCOME TSY INFL IX N/B 554,225 364,870 0.06 3.375 4/15/2032MML Inflation-Protected and Income Fund FIXED INCOME KEYCORP STUDENT LOAN TRUST 33,975 34,487 0.00 0.57 5/25/2029MML Growth & Income Fund EQUITY FORTIVE CORP 1,856,476 24,360 1.28 0MML Growth & Income Fund EQUITY CIGNA CORP 1,306,998 7,715 0.90 0MML Growth & Income Fund EQUITY DUPONT DE NEMOURS INC 1,172,292 21,130 0.81 0MML Growth & Income Fund EQUITY BLACKSTONE GROUP INC/THE A 964,082 18,469 0.67 0MML Growth & Income Fund EQUITY TRUIST FINANCIAL CORP 1,412,835 37,131 0.98 0MML Growth & Income Fund CASH EQUIVALENT FIXED INC CLEARING CORP.REPO 1,259,462 1,259,462 0.87 0 10/1/2020MML Growth & Income Fund EQUITY MEDTRONIC PLC 3,436,738 33,071 2.37 0MML Growth & Income Fund EQUITY PRA HEALTH SCIENCES INC 1,624,257 16,012 1.12 0MML Growth & Income Fund EQUITY EQUINIX INC 1,979,379 2,604 1.37 0MML Growth & Income Fund EQUITY CANADIAN NATL RAILWAY CO 2,266,001 21,285 1.57 0MML Growth & Income Fund EQUITY EOG RESOURCES INC 258,373 7,189 0.18 0MML Growth & Income Fund EQUITY AMERICAN ELECTRIC POWER 769,815 9,419 0.53 0MML Growth & Income Fund EQUITY THERMO FISHER SCIENTIFIC INC 2,860,167 6,478 1.98 0MML Growth & Income Fund EQUITY OLD DOMINION FREIGHT LINE 252,926 1,398 0.17 0MML Growth & Income Fund EQUITY TRACTOR SUPPLY COMPANY 2,202,132 15,363 1.52 0MML Growth & Income Fund EQUITY AMETEK INC 1,930,149 19,418 1.33 0MML Growth & Income Fund EQUITY APPLIED MATERIALS INC 829,744 13,957 0.57 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Growth & Income Fund EQUITY DIAGEO PLC 1,713,492 50,017 1.18 0MML Growth & Income Fund EQUITY PERNOD RICARD SA 1,556,482 9,753 1.08 0MML Growth & Income Fund EQUITY BECTON DICKINSON AND CO 2,837,067 12,193 1.96 0MML Growth & Income Fund EQUITY HONEYWELL INTERNATIONAL INC 2,795,901 16,985 1.93 0MML Growth & Income Fund EQUITY APPLE INC 3,587,331 30,976 2.48 0MML Growth & Income Fund EQUITY CISCO SYSTEMS INC 531,568 13,495 0.37 0MML Growth & Income Fund EQUITY HOME DEPOT INC 2,459,400 8,856 1.70 0MML Growth & Income Fund EQUITY MICROSOFT CORP 7,683,355 36,530 5.31 0MML Growth & Income Fund EQUITY KIMBERLY CLARK CORP 1,294,092 8,764 0.89 0MML Growth & Income Fund EQUITY BANK OF AMERICA CORP 2,624,630 108,951 1.81 0MML Growth & Income Fund CASH US DOLLAR 7,870 7,870 0.01 0MML Growth & Income Fund EQUITY TEXAS INSTRUMENTS INC 2,490,115 17,439 1.72 0MML Growth & Income Fund EQUITY COSTCO WHOLESALE CORP 1,774,645 4,999 1.23 0MML Growth & Income Fund EQUITY JOHNSON + JOHNSON 4,104,770 27,571 2.84 0MML Growth & Income Fund EQUITY ELI LILLY + CO 2,189,068 14,789 1.51 0MML Growth & Income Fund EQUITY TARGET CORP 2,404,591 15,275 1.66 0MML Growth & Income Fund EQUITY NIKE INC CL B 1,529,956 12,187 1.06 0MML Growth & Income Fund EQUITY ANALOG DEVICES INC 1,376,715 11,793 0.95 0MML Growth & Income Fund EQUITY SHERWIN WILLIAMS CO/THE 2,242,109 3,218 1.55 0MML Growth & Income Fund EQUITY COLGATE PALMOLIVE CO 1,713,887 22,215 1.18 0MML Growth & Income Fund EQUITY GOLDMAN SACHS GROUP INC 2,028,993 10,096 1.40 0MML Growth & Income Fund EQUITY PPG INDUSTRIES INC 1,222,631 10,015 0.84 0MML Growth & Income Fund EQUITY ELECTRONIC ARTS INC 2,279,697 17,481 1.57 0MML Growth & Income Fund EQUITY ADOBE INC 2,854,303 5,820 1.97 0MML Growth & Income Fund EQUITY AMDOCS LTD 1,388,863 24,192 0.96 0MML Growth & Income Fund EQUITY DANAHER CORP 2,518,500 11,696 1.74 0MML Growth & Income Fund EQUITY STARBUCKS CORP 1,253,229 14,586 0.87 0MML Growth & Income Fund EQUITY LVMH MOET HENNESSY LOUIS VUI 1,816,689 3,886 1.25 0MML Growth & Income Fund EQUITY ILLUMINA INC 1,190,267 3,851 0.82 0MML Growth & Income Fund EQUITY NASDAQ INC 2,273,203 18,525 1.57 0MML Growth & Income Fund EQUITY JPMORGAN CHASE + CO 3,032,601 31,501 2.09 0MML Growth & Income Fund EQUITY CONOCOPHILLIPS 723,137 22,020 0.50 0MML Growth & Income Fund EQUITY COMCAST CORP CLASS A 3,028,596 65,469 2.09 0MML Growth & Income Fund EQUITY CROWN HOLDINGS INC 1,733,193 22,550 1.20 0MML Growth & Income Fund EQUITY SALESFORCE.COM INC 2,330,239 9,272 1.61 0MML Growth & Income Fund EQUITY TD AMERITRADE HOLDING CORP 718,207 18,345 0.50 0MML Growth & Income Fund EQUITY FIDELITY NATIONAL INFO SERV 3,185,330 21,638 2.20 0MML Growth & Income Fund EQUITY MASTERCARD INC A 3,789,195 11,205 2.62 0MML Growth & Income Fund EQUITY DANONE 1,847,292 28,560 1.28 0MML Growth & Income Fund EQUITY VISA INC CLASS A SHARES 3,522,072 17,613 2.43 0MML Growth & Income Fund EQUITY ACCENTURE PLC CL A 2,450,862 10,845 1.69 0MML Growth & Income Fund EQUITY MERCK + CO. INC. 2,255,493 27,191 1.56 0MML Growth & Income Fund EQUITY DOLLAR GENERAL CORP 2,000,823 9,545 1.38 0MML Growth & Income Fund EQUITY TE CONNECTIVITY LTD 1,323,888 13,545 0.91 0MML Growth & Income Fund EQUITY AMERICAN TOWER CORP 2,990,442 12,371 2.07 0MML Growth & Income Fund EQUITY FACEBOOK INC CLASS A 3,062,397 11,693 2.12 0MML Growth & Income Fund EQUITY MONDELEZ INTERNATIONAL INC A 1,396,897 24,315 0.96 0MML Growth & Income Fund EQUITY ENTERPRISE PRODUCTS PARTNERS 1,264,905 80,108 0.87 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Growth & Income Fund EQUITY ESTEE LAUDER COMPANIES CL A 764,530 3,503 0.53 0MML Growth & Income Fund EQUITY ZOETIS INC 1,570,850 9,499 1.08 0MML Growth & Income Fund EQUITY ICON PLC 940,163 4,920 0.65 0MML Growth & Income Fund EQUITY ALPHABET INC CL C 2,035,396 1,385 1.41 0MML Growth & Income Fund EQUITY ALPHABET INC CL A 5,466,688 3,730 3.78 0MML Growth & Income Fund EQUITY CHUBB LTD 1,222,279 10,526 0.84 0MML Small Company Value Fund EQUITY BEACON ROOFING SUPPLY INC 644,392 20,740 0.78 0MML Small Company Value Fund EQUITY SUNSTONE HOTEL INVESTORS INC 580,811 73,150 0.71 0MML Small Company Value Fund EQUITY WESTERN ALLIANCE BANCORP 733,552 23,199 0.89 0MML Small Company Value Fund EQUITY RBC BEARINGS INC 297,813 2,457 0.36 0MML Small Company Value Fund EQUITY ULTRAGENYX PHARMACEUTICAL IN 187,886 2,286 0.23 0MML Small Company Value Fund EQUITY CARA THERAPEUTICS INC 69,949 5,497 0.09 0MML Small Company Value Fund EQUITY KNOWLES CORP 462,317 31,028 0.56 0MML Small Company Value Fund EQUITY MSA SAFETY INC 529,166 3,944 0.64 0MML Small Company Value Fund EQUITY SPORTSMAN S WAREHOUSE HOLDIN 637,511 44,550 0.78 0MML Small Company Value Fund EQUITY SOUTH STATE CORP 564,944 11,733 0.69 0MML Small Company Value Fund EQUITY MERIDIAN BANCORP INC 314,226 30,360 0.38 0MML Small Company Value Fund EQUITY ORION ENGINEERED CARBONS SA 332,766 26,600 0.41 0MML Small Company Value Fund CASH EQUIVALENT ROWE T PRICE GOV RES FD 1,064 1,064 0.00 0.01 9/19/2034MML Small Company Value Fund EQUITY ENTEGRIS INC 727,863 9,791 0.89 0MML Small Company Value Fund EQUITY PROSPERITY BANCSHARES INC 537,114 10,363 0.65 0MML Small Company Value Fund EQUITY MERITAGE HOMES CORP 406,346 3,681 0.49 0MML Small Company Value Fund EQUITY RGC RESOURCES INC 171,138 7,298 0.21 0MML Small Company Value Fund EQUITY SCHOLASTIC CORP 175,770 8,374 0.21 0MML Small Company Value Fund EQUITY KORN FERRY 293,770 10,130 0.36 0MML Small Company Value Fund EQUITY ST JOE CO/THE 667,484 32,355 0.81 0MML Small Company Value Fund EQUITY PAPA JOHN S INTL INC 527,086 6,406 0.64 0MML Small Company Value Fund EQUITY AMERICAN VANGUARD CORP 233,892 17,800 0.28 0MML Small Company Value Fund EQUITY CALIFORNIA WATER SERVICE GRP 525,441 12,093 0.64 0MML Small Company Value Fund EQUITY HERITAGE FINANCIAL CORP 262,995 14,301 0.32 0MML Small Company Value Fund EQUITY MCGRATH RENTCORP 582,254 9,771 0.71 0MML Small Company Value Fund EQUITY QUAKER CHEMICAL CORP 543,982 3,027 0.66 0MML Small Company Value Fund EQUITY HILLENBRAND INC 241,060 8,500 0.29 0MML Small Company Value Fund EQUITY CLEARWATER PAPER CORP 728,107 19,191 0.89 0MML Small Company Value Fund EQUITY VIRTUS INVESTMENT PARTNERS 566,801 4,088 0.69 0MML Small Company Value Fund EQUITY SELECT MEDICAL HOLDINGS CORP 742,504 35,663 0.90 0MML Small Company Value Fund EQUITY LUMBER LIQUIDATORS HOLDINGS 575,108 26,082 0.70 0MML Small Company Value Fund EQUITY TERRENO REALTY CORP 1,129,042 20,618 1.37 0MML Small Company Value Fund EQUITY MAXLINEAR INC 464,382 19,982 0.57 0MML Small Company Value Fund EQUITY GREEN DOT CORP CLASS A 786,530 15,541 0.96 0MML Small Company Value Fund EQUITY VISTEON CORP 389,778 5,631 0.47 0MML Small Company Value Fund EQUITY WALKER + DUNLOP INC 227,370 4,290 0.28 0MML Small Company Value Fund EQUITY BANKUNITED INC 796,429 36,350 0.97 0MML Small Company Value Fund EQUITY INSMED INC 38,568 1,200 0.05 0MML Small Company Value Fund EQUITY THERMON GROUP HOLDINGS INC 268,824 23,938 0.33 0MML Small Company Value Fund EQUITY AEGION CORP 660,111 46,717 0.80 0MML Small Company Value Fund EQUITY MARRIOTT VACATIONS WORLD 388,122 4,274 0.47 0MML Small Company Value Fund EQUITY WPX ENERGY INC 449,992 91,835 0.55 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Small Company Value Fund EQUITY POST HOLDINGS INC 556,592 6,472 0.68 0MML Small Company Value Fund EQUITY MATADOR RESOURCES CO 296,749 35,926 0.36 0MML Small Company Value Fund EQUITY POPULAR INC 467,121 12,879 0.57 0MML Small Company Value Fund EQUITY MATSON INC 352,792 8,800 0.43 0MML Small Company Value Fund EQUITY NATIONAL BANK HOLD CL A 569,809 21,707 0.69 0MML Small Company Value Fund EQUITY ACCELERON PHARMA INC 145,501 1,293 0.18 0MML Small Company Value Fund EQUITY XENCOR INC 223,353 5,758 0.27 0MML Small Company Value Fund EQUITY LITTELFUSE INC 1,183,922 6,676 1.44 0MML Small Company Value Fund EQUITY STEVEN MADDEN LTD 454,175 23,291 0.55 0MML Small Company Value Fund EQUITY MYERS INDUSTRIES INC 352,408 26,637 0.43 0MML Small Company Value Fund EQUITY SEMTECH CORP 344,876 6,512 0.42 0MML Small Company Value Fund EQUITY STERICYCLE INC 733,325 11,629 0.89 0MML Small Company Value Fund EQUITY EASTGROUP PROPERTIES INC 811,934 6,278 0.99 0MML Small Company Value Fund EQUITY WEST PHARMACEUTICAL SERVICES 122,331 445 0.15 0MML Small Company Value Fund EQUITY BRADY CORPORATION CL A 330,565 8,260 0.40 0MML Small Company Value Fund EQUITY GLACIER BANCORP INC 576,259 17,980 0.70 0MML Small Company Value Fund EQUITY SAUL CENTERS INC 440,085 16,557 0.54 0MML Small Company Value Fund EQUITY CARPENTER TECHNOLOGY 350,960 19,326 0.43 0MML Small Company Value Fund EQUITY RADIAN GROUP INC 581,726 39,817 0.71 0MML Small Company Value Fund EQUITY RYDER SYSTEM INC 447,279 10,589 0.54 0MML Small Company Value Fund EQUITY ATRION CORPORATION 634,138 1,013 0.77 0MML Small Company Value Fund EQUITY POTLATCHDELTIC CORP 793,627 18,851 0.97 0MML Small Company Value Fund EQUITY POOL CORP 1,050,456 3,140 1.28 0MML Small Company Value Fund EQUITY DORMAN PRODUCTS INC 597,593 6,612 0.73 0MML Small Company Value Fund EQUITY HOME BANCSHARES INC 1,184,906 78,160 1.44 0MML Small Company Value Fund EQUITY HANESBRANDS INC 408,319 25,925 0.50 0MML Small Company Value Fund EQUITY TOWNE BANK 549,023 33,477 0.67 0MML Small Company Value Fund EQUITY WEBSTER FINANCIAL CORP 463,601 17,554 0.56 0MML Small Company Value Fund EQUITY SPX CORP 458,652 9,889 0.56 0MML Small Company Value Fund EQUITY MINERALS TECHNOLOGIES INC 549,172 10,747 0.67 0MML Small Company Value Fund EQUITY PROASSURANCE CORP 272,120 17,399 0.33 0MML Small Company Value Fund EQUITY PNM RESOURCES INC 1,040,607 25,178 1.27 0MML Small Company Value Fund EQUITY RUSH ENTERPRISES INC CL A 269,985 5,342 0.33 0MML Small Company Value Fund EQUITY RED ROBIN GOURMET BURGERS 194,584 14,786 0.24 0MML Small Company Value Fund EQUITY MGE ENERGY INC 482,043 7,693 0.59 0MML Small Company Value Fund EQUITY SAFETY INSURANCE GROUP INC 279,815 4,050 0.34 0MML Small Company Value Fund EQUITY CAVCO INDUSTRIES INC 797,691 4,424 0.97 0MML Small Company Value Fund EQUITY MOLINA HEALTHCARE INC 195,670 1,069 0.24 0MML Small Company Value Fund EQUITY CEDAR REALTY TRUST INC 124,102 153,212 0.15 0MML Small Company Value Fund EQUITY PINNACLE FINANCIAL PARTNERS 701,657 19,715 0.85 0MML Small Company Value Fund EQUITY MOMENTA PHARMACEUTICALS INC 571,822 10,896 0.70 0MML Small Company Value Fund EQUITY BELDEN INC 925,384 29,736 1.13 0MML Small Company Value Fund EQUITY HARMONIC INC 648,413 116,203 0.79 0MML Small Company Value Fund EQUITY HEALTHCARE REALTY TRUST INC 575,985 19,123 0.70 0MML Small Company Value Fund EQUITY PS BUSINESS PARKS INC/CA 515,384 4,211 0.63 0MML Small Company Value Fund EQUITY WASHINGTON REIT 316,222 15,709 0.39 0MML Small Company Value Fund EQUITY CHESAPEAKE UTILITIES CORP 1,030,483 12,224 1.25 0MML Small Company Value Fund EQUITY CIRCOR INTERNATIONAL INC 387,221 14,158 0.47 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Small Company Value Fund EQUITY COLUMBIA BANKING SYSTEM INC 574,713 24,097 0.70 0MML Small Company Value Fund EQUITY CUBIC CORP 729,626 12,543 0.89 0MML Small Company Value Fund EQUITY ESCO TECHNOLOGIES INC 770,476 9,564 0.94 0MML Small Company Value Fund EQUITY FTI CONSULTING INC 831,759 7,849 1.01 0MML Small Company Value Fund EQUITY INDEPENDENT BANK CORP/MA 261,429 4,991 0.32 0MML Small Company Value Fund EQUITY MESA LABORATORIES INC 357,938 1,405 0.44 0MML Small Company Value Fund EQUITY MONRO INC 294,984 7,271 0.36 0MML Small Company Value Fund EQUITY QUIDEL CORP 1,014,194 4,623 1.23 0MML Small Company Value Fund EQUITY RELIANCE STEEL + ALUMINUM 459,180 4,500 0.56 0MML Small Company Value Fund EQUITY REX AMERICAN RESOURCES CORP 455,990 6,950 0.56 0MML Small Company Value Fund EQUITY STATE AUTO FINANCIAL CORP 225,403 16,381 0.27 0MML Small Company Value Fund EQUITY TRIUMPH GROUP INC 341,098 52,396 0.42 0MML Small Company Value Fund EQUITY UNIFIRST CORP/MA 178,008 940 0.22 0MML Small Company Value Fund EQUITY WSFS FINANCIAL CORP 826,253 30,636 1.01 0MML Small Company Value Fund EQUITY AARON S INC 1,148,409 20,272 1.40 0MML Small Company Value Fund EQUITY COCA COLA CONSOLIDATED INC 459,458 1,909 0.56 0MML Small Company Value Fund EQUITY DRIL QUIP INC 195,505 7,896 0.24 0MML Small Company Value Fund EQUITY EAST WEST BANCORP INC 392,978 12,003 0.48 0MML Small Company Value Fund EQUITY ONE GAS INC 849,513 12,310 1.03 0MML Small Company Value Fund EQUITY EMPLOYERS HOLDINGS INC 235,194 7,775 0.29 0MML Small Company Value Fund EQUITY ENSIGN GROUP INC/THE 580,414 10,172 0.71 0MML Small Company Value Fund EQUITY AMERICAN CAMPUS COMMUNITIES 348,327 9,975 0.42 0MML Small Company Value Fund EQUITY BJ S RESTAURANTS INC 376,832 12,800 0.46 0MML Small Company Value Fund EQUITY BRP GROUP INC A 457,896 18,382 0.56 0MML Small Company Value Fund EQUITY CONSTELLIUM SE 513,853 65,459 0.63 0MML Small Company Value Fund EQUITY ENERPAC TOOL GROUP CORP 449,559 23,900 0.55 0MML Small Company Value Fund EQUITY OPTION CARE HEALTH INC 290,824 21,752 0.35 0MML Small Company Value Fund EQUITY UFP INDUSTRIES INC 1,215,191 21,504 1.48 0MML Small Company Value Fund EQUITY CHAMPIONX CORP 432,403 54,118 0.53 0MML Small Company Value Fund EQUITY SOCIAL CAPITAL HEDOSOPHIA A 45,576 2,400 0.06 0MML Small Company Value Fund EQUITY ACCOLADE INC 39,298 1,011 0.05 0MML Small Company Value Fund EQUITY NCINO INC 35,298 443 0.04 0MML Small Company Value Fund EQUITY OUTSET MEDICAL INC 36,500 730 0.04 0MML Small Company Value Fund EQUITY STEPSTONE GROUP INC CLASS A 100,799 3,788 0.12 0MML Small Company Value Fund EQUITY HOWARD BANCORP INC 315,063 35,085 0.38 0MML Small Company Value Fund EQUITY PRA GROUP INC 246,492 6,170 0.30 0MML Small Company Value Fund EQUITY WORKIVA INC 244,452 4,384 0.30 0MML Small Company Value Fund EQUITY JAMES RIVER GROUP HOLDINGS L 208,400 4,680 0.25 0MML Small Company Value Fund EQUITY BLUE BIRD CORP 240,768 19,800 0.29 0MML Small Company Value Fund EQUITY NOMAD FOODS LTD 1,145,632 44,962 1.39 0MML Small Company Value Fund EQUITY CABLE ONE INC 1,342,426 712 1.63 0MML Small Company Value Fund EQUITY UNIVAR SOLUTIONS INC 199,184 11,800 0.24 0MML Small Company Value Fund EQUITY LIVE OAK BANCSHARES INC 451,862 17,839 0.55 0MML Small Company Value Fund EQUITY PLANET FITNESS INC CL A 277,290 4,500 0.34 0MML Small Company Value Fund EQUITY HOULIHAN LOKEY INC 834,140 14,126 1.02 0MML Small Company Value Fund EQUITY ATLANTIC CAPITAL BANCSHARES 145,882 12,853 0.18 0MML Small Company Value Fund EQUITY HOPE BANCORP INC 271,922 35,850 0.33 0MML Small Company Value Fund EQUITY FB FINANCIAL CORP 538,874 21,452 0.66 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Small Company Value Fund EQUITY ALCOA CORP 362,484 31,168 0.44 0MML Small Company Value Fund EQUITY INTERNATIONAL SEAWAYS INC 280,147 19,175 0.34 0MML Small Company Value Fund EQUITY LCI INDUSTRIES 599,050 5,636 0.73 0MML Small Company Value Fund EQUITY KIMBELL ROYALTY PARTNERS LP 178,070 29,144 0.22 0MML Small Company Value Fund EQUITY HAMILTON LANE INC CLASS A 119,169 1,845 0.15 0MML Small Company Value Fund EQUITY PCSB FINANCIAL CORP 227,978 18,888 0.28 0MML Small Company Value Fund EQUITY JBG SMITH PROPERTIES 654,248 24,467 0.80 0MML Small Company Value Fund EQUITY BOSTON OMAHA CORP CL A 256,592 16,037 0.31 0MML Small Company Value Fund EQUITY SIMPLY GOOD FOODS CO/THE 377,386 17,115 0.46 0MML Small Company Value Fund EQUITY CANNAE HOLDINGS INC 267,378 7,176 0.33 0MML Small Company Value Fund EQUITY LIBERTY OILFIELD SERVICES A 461,926 57,813 0.56 0MML Small Company Value Fund EQUITY CACTUS INC A 429,568 22,385 0.52 0MML Small Company Value Fund EQUITY CERIDIAN HCM HOLDING INC 1,057,176 12,791 1.29 0MML Small Company Value Fund EQUITY ORIGIN BANCORP INC 327,235 15,320 0.40 0MML Small Company Value Fund EQUITY I3 VERTICALS INC CLASS A 393,395 15,580 0.48 0MML Small Company Value Fund EQUITY ESSENTIAL PROPERTIES REALTY 81,213 4,433 0.10 0MML Small Company Value Fund EQUITY AVANOS MEDICAL INC 326,154 9,818 0.40 0MML Small Company Value Fund EQUITY MAGNOLIA OIL + GAS CORP A 271,632 52,540 0.33 0MML Small Company Value Fund EQUITY STRATEGIC EDUCATION INC 649,894 7,105 0.79 0MML Small Company Value Fund EQUITY KODIAK SCIENCES INC 29,072 491 0.04 0MML Small Company Value Fund EQUITY PENNYMAC FINANCIAL SERVICES 1,532,973 26,376 1.87 0MML Small Company Value Fund EQUITY KOSMOS ENERGY LTD 55,117 56,495 0.07 0MML Small Company Value Fund EQUITY ELEMENT SOLUTIONS INC 181,823 17,300 0.22 0MML Small Company Value Fund EQUITY SAFEHOLD INC 242,190 3,900 0.29 0MML Small Company Value Fund EQUITY PALOMAR HOLDINGS INC 427,280 4,099 0.52 0MML Small Company Value Fund EQUITY PARSONS CORP 367,967 10,971 0.45 0MML Small Company Value Fund EQUITY CLARIVATE PLC 730,093 23,559 0.89 0MML Small Company Value Fund EQUITY GROCERY OUTLET HOLDING CORP 395,205 10,051 0.48 0MML Small Company Value Fund EQUITY HELIOS TECHNOLOGIES INC 509,491 13,997 0.62 0MML Small Company Value Fund EQUITY PHREESIA INC 256,365 7,979 0.31 0MML Small Company Value Fund EQUITY HARBORONE BANCORP INC 408,842 50,662 0.50 0MML Small Company Value Fund EQUITY CROSSFIRST BANKSHARES INC 242,825 27,943 0.30 0MML Small Company Value Fund EQUITY PENNANT GROUP INC/THE 456,319 11,834 0.56 0MML Small Company Value Fund EQUITY ENVISTA HOLDINGS CORP 455,889 18,472 0.56 0MML Small Company Value Fund EQUITY ONTO INNOVATION INC 199,973 6,715 0.24 0MML Small Company Value Fund CASH EQUIVALENT FIXED INC CLEARING CORP.REPO 372,195 372,195 0.45 0 10/1/2020MML Small Company Value Fund EQUITY CMC MATERIALS INC 298,759 2,092 0.36 0MML Small Company Value Fund EQUITY CONYERS PARK II ACQUISITION 147,865 13,884 0.18 0MML Small Company Value Fund EQUITY LANDSTAR SYSTEM INC 682,917 5,442 0.83 0MML International Equity Fund EQUITY COMPASS GROUP PLC 1,687,254 112,400 1.12 0MML International Equity Fund EQUITY FERGUSON PLC 1,113,822 11,070 0.74 0MML International Equity Fund EQUITY TRIP.COM GROUP LTD ADR 1,049,418 33,700 0.70 0MML International Equity Fund EQUITY ALIBABA GROUP HOLDING LTD 897,102 24,260 0.60 0MML International Equity Fund CASH EQUIVALENT FIXED INC CLEARING CORP.REPO 3,067,132 3,067,132 2.04 0 10/1/2020MML International Equity Fund CASH SOUTH KOREAN WON 1 745 - 0MML International Equity Fund CASH CANADIAN DOLLAR (22) (29) 0.00 0MML International Equity Fund CASH AUSTRALIAN DOLLAR 3 5 0.00 0MML International Equity Fund CASH SWISS FRANC 38 35 0.00 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML International Equity Fund EQUITY PRUDENTIAL PLC 2,655,475 186,000 1.76 0MML International Equity Fund EQUITY LLOYDS BANKING GROUP PLC 5,955,291 17,548,900 3.95 0MML International Equity Fund EQUITY INTESA SANPAOLO 5,682,755 3,026,400 3.77 0MML International Equity Fund EQUITY CONTINENTAL AG 4,840,838 44,655 3.21 0MML International Equity Fund EQUITY UPM KYMMENE OYJ 1,862,686 61,200 1.24 0MML International Equity Fund EQUITY BAYER AG REG 3,305,911 52,894 2.19 0MML International Equity Fund EQUITY FRESENIUS MEDICAL CARE AG + 1,359,450 16,100 0.90 0MML International Equity Fund EQUITY ALLIANZ SE REG 3,414,371 17,800 2.27 0MML International Equity Fund EQUITY DAIMLER AG REGISTERED SHARES 5,931,412 110,003 3.94 0MML International Equity Fund EQUITY THYSSENKRUPP AG 1,546,938 306,074 1.03 0MML International Equity Fund EQUITY HENNES + MAURITZ AB B SHS 3,074,009 178,218 2.04 0MML International Equity Fund CASH INDIAN RUPEE 16,301 1,202,670 0.01 0MML International Equity Fund EQUITY OPEN TEXT CORP 1,403,249 33,200 0.93 0MML International Equity Fund EQUITY ASHTEAD GROUP PLC 2,295,712 64,074 1.52 0MML International Equity Fund EQUITY HENKEL AG + CO KGAA VORZUG 785,332 7,500 0.52 0MML International Equity Fund EQUITY HENKEL AG + CO KGAA 580,742 6,200 0.39 0MML International Equity Fund EQUITY RYANAIR HOLDINGS PLC SP ADR 2,854,242 34,910 1.89 0MML International Equity Fund EQUITY ESSILORLUXOTTICA 1,265,345 9,305 0.84 0MML International Equity Fund EQUITY BUNZL PLC 1,071,147 33,200 0.71 0MML International Equity Fund EQUITY BAIDU INC SPON ADR 1,456,418 11,505 0.97 0MML International Equity Fund EQUITY BRAMBLES LTD 1,376,130 182,800 0.91 0MML International Equity Fund EQUITY BAYER AG REG 31,281 500 0.02 0MML International Equity Fund EQUITY THYSSENKRUPP AG 2,521 500 0.00 0MML International Equity Fund EQUITY LIBERTY GLOBAL PLC A 2,262,777 107,700 1.50 0MML International Equity Fund EQUITY LIBERTY GLOBAL PLC C 242,313 11,800 0.16 0MML International Equity Fund EQUITY CIE FINANCIERE RICHEMO A REG 2,119,272 31,640 1.41 0MML International Equity Fund EQUITY ACCOR SA 3,269,639 116,900 2.17 0MML International Equity Fund EQUITY ORICA LTD 2,305,530 208,067 1.53 0MML International Equity Fund EQUITY KOMATSU LTD 2,179,447 99,000 1.45 0MML International Equity Fund EQUITY TOYOTA MOTOR CORP 1,838,680 27,800 1.22 0MML International Equity Fund EQUITY NASPERS LTD N SHS 3,499,312 19,840 2.32 0MML International Equity Fund EQUITY SAMSUNG ELECTRONICS CO LTD 1,267,200 25,150 0.84 0MML International Equity Fund CASH EURO CURRENCY 64 55 0.00 0MML International Equity Fund EQUITY GRUPO TELEVISA SA SPON ADR 1,059,870 171,500 0.70 0MML International Equity Fund EQUITY SCHRODERS PLC 2,056,211 59,000 1.36 0MML International Equity Fund EQUITY BAYERISCHE MOTOREN WERKE AG 5,100,859 70,250 3.39 0MML International Equity Fund EQUITY PUBLICIS GROUPE 3,185,727 98,305 2.11 0MML International Equity Fund EQUITY NOVARTIS AG REG 834,252 9,600 0.55 0MML International Equity Fund EQUITY LAFARGEHOLCIM LTD REG 1,543,411 33,859 1.02 0MML International Equity Fund EQUITY SWATCH GROUP AG/THE BR 1,942,709 8,340 1.29 0MML International Equity Fund EQUITY CREDIT SUISSE GROUP AG REG 5,243,680 523,909 3.48 0MML International Equity Fund EQUITY BNP PARIBAS 6,287,026 173,550 4.17 0MML International Equity Fund EQUITY NAVER CORP 1,487,497 5,875 0.99 0MML International Equity Fund EQUITY BANK MANDIRI PERSERO TBK PT 1,285,410 3,830,600 0.85 0MML International Equity Fund EQUITY AMP LTD 1,430,876 1,520,394 0.95 0MML International Equity Fund EQUITY G4S PLC 2,058,630 797,600 1.37 0MML International Equity Fund EQUITY VOLVO AB B SHS 2,423,296 126,170 1.61 0MML International Equity Fund EQUITY SKF AB B SHARES 2,421,317 117,500 1.61 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML International Equity Fund EQUITY SMITHS GROUP PLC 1,260,548 71,700 0.84 0MML International Equity Fund EQUITY BUREAU VERITAS SA 1,235,064 54,987 0.82 0MML International Equity Fund EQUITY CENOVUS ENERGY INC 1,802,751 462,515 1.20 0MML International Equity Fund EQUITY AMADEUS IT GROUP SA 2,347,480 42,300 1.56 0MML International Equity Fund EQUITY GLENCORE PLC 6,250,444 3,017,044 4.15 0MML International Equity Fund EQUITY ROLLS ROYCE HOLDINGS PLC 952,727 574,180 0.63 0MML International Equity Fund EQUITY NATWEST GROUP PLC 2,169,920 1,589,200 1.44 0MML International Equity Fund EQUITY WPP PLC 2,275,699 291,392 1.51 0MML International Equity Fund EQUITY CNH INDUSTRIAL NV 5,249,350 675,453 3.48 0MML International Equity Fund EQUITY AXIS BANK LTD 2,516,526 434,342 1.67 0MML International Equity Fund EQUITY ALIBABA GROUP HOLDING SP ADR 111,712 380 0.07 0MML International Equity Fund EQUITY RYANAIR HOLDINGS PLC 106,376 8,000 0.07 0MML International Equity Fund EQUITY VALEO SA 1,947,188 63,710 1.29 0MML International Equity Fund EQUITY ANHEUSER BUSCH INBEV SA/NV 1,360,235 25,200 0.90 0MML International Equity Fund EQUITY EXOR NV 3,145,324 57,800 2.09 0MML Asset Momentum Fund EQUITY POOL CORP 1,706,154 5,100 4.67 0MML Asset Momentum Fund EQUITY SCHINDLER HOLDING PART CERT 191,124 700 0.52 0MML Asset Momentum Fund EQUITY NEXUS AG 183,376 3,400 0.50 0MML Asset Momentum Fund EQUITY VISA INC CLASS A SHARES 439,934 2,200 1.20 0MML Asset Momentum Fund EQUITY FORTINET INC 1,036,728 8,800 2.84 0MML Asset Momentum Fund EQUITY EMIS GROUP PLC 158,482 11,800 0.43 0MML Asset Momentum Fund EQUITY BREEDON GROUP PLC 81,019 88,437 0.22 0MML Asset Momentum Fund EQUITY MARATHON PETROLEUM CORP 293,400 10,000 0.80 0MML Asset Momentum Fund EQUITY ISHARES MSCI INDIA ETF 223,476 6,600 0.61 0MML Asset Momentum Fund FIXED INCOME US TREASURY N/B 6,033,886 6,000,000 16.52 1.25 3/31/2021MML Asset Momentum Fund FIXED INCOME US TREASURY N/B 3,036,126 3,000,000 8.31 1.25 10/31/2021MML Asset Momentum Fund EQUITY RIGHTMOVE PLC 281,720 35,000 0.77 0MML Asset Momentum Fund EQUITY FOX CORP CLASS A 222,640 8,000 0.61 0MML Asset Momentum Fund FUTURE S+P500 EMINI FUT DEC20 - 5,550 0.28 0 12/18/2020MML Asset Momentum Fund FUTURE NASDAQ 100 E-MINI DEC20 - 320 0.06 0 12/18/2020MML Asset Momentum Fund CASH EQUIVALENT FIXED INC CLEARING CORP.REPO 5,383,393 5,383,393 14.74 0 10/1/2020MML Asset Momentum Fund EQUITY VANGUARD SHORT TERM BOND ETF 7,723,650 93,000 21.15 0MML Asset Momentum Fund EQUITY ISHARES MSCI MEXICO ETF 567,120 17,000 1.55 0MML Asset Momentum Fund EQUITY FRESENIUS SE + CO KGAA 268,566 5,900 0.74 0MML Asset Momentum Fund EQUITY HENKEL AG + CO KGAA 187,336 2,000 0.51 0MML Asset Momentum Fund EQUITY KEYENCE CORP 372,834 800 1.02 0MML Asset Momentum Fund CASH POUND STERLING (329) (255) 0.00 0MML Asset Momentum Fund CASH CANADIAN DOLLAR (0) (0) - 0MML Asset Momentum Fund CASH MEXICAN PESO (NEW) (17,179) (379,858) 0.05 0MML Asset Momentum Fund EQUITY ROPER TECHNOLOGIES INC 434,621 1,100 1.19 0MML Asset Momentum Fund EQUITY NTT DOCOMO INC 207,673 5,600 0.57 0MML Asset Momentum Fund CASH US DOLLAR 342,098 342,098 0.94 0MML Asset Momentum Fund EQUITY ADVANCED MEDICAL SOLUTIONS 152,258 54,682 0.42 0MML Asset Momentum Fund EQUITY PORTMEIRION GROUP PLC 30,716 5,600 0.08 0MML Asset Momentum Fund EQUITY HALMA PLC 530,471 17,600 1.45 0MML Asset Momentum Fund EQUITY ISHARES MSCI BRAZIL ETF 995,760 36,000 2.73 0MML Asset Momentum Fund EQUITY VANGUARD TOTAL STOCK MARKET ET 3,780,882 22,200 10.35 0MML Asset Momentum Fund EQUITY MASTERCARD INC A 1,792,301 5,300 4.91 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Dynamic Bond Fund FIXED INCOME UNITED MEXICAN STATES 381,588 343,000 0.10 4.15 3/28/2027MML Dynamic Bond Fund FIXED INCOME PERUSAHAAN PENERBIT SBSN 224,802 200,000 0.06 4.15 3/29/2027MML Dynamic Bond Fund FIXED INCOME LATAM FINANCE LTD 74,000 200,000 0.02 6.875 4/11/2024MML Dynamic Bond Fund FIXED INCOME HELIOS ISSUER, LLC 224,863 211,236 0.06 4.94 9/20/2049MML Dynamic Bond Fund FIXED INCOME SABINE PASS LIQUEFACTION 248,146 220,000 0.07 5 3/15/2027MML Dynamic Bond Fund FIXED INCOME TEMPO ACQUISITION LLC/FI 193,916 190,000 0.05 6.75 6/1/2025MML Dynamic Bond Fund FIXED INCOME COMM MORTGAGE TRUST 132,840 738,000 0.04 4.74452 10/15/2045MML Dynamic Bond Fund FIXED INCOME AMERICAN ELECTRIC POWER 327,401 313,000 0.09 2.95 12/15/2022MML Dynamic Bond Fund FIXED INCOME FED HM LN PC POOL G08520 1,044,090 987,180 0.29 2.5 1/1/2043MML Dynamic Bond Fund FIXED INCOME GS MORTGAGE SECURITIES TRUST 135,146 4,427,685 0.04 1.638864 2/10/2046MML Dynamic Bond Fund FIXED INCOME US TREASURY N/B 3,514,267 2,590,000 0.96 3.125 2/15/2043MML Dynamic Bond Fund FIXED INCOME REPUBLIC OF INDONESIA 210,908 200,000 0.06 3.375 4/15/2023MML Dynamic Bond Fund FIXED INCOME CNOOC FINANCE 2013 LTD 209,594 200,000 0.06 3 5/9/2023MML Dynamic Bond Fund FIXED INCOME STATE GRID OVERSEAS INV 210,794 200,000 0.06 3.125 5/22/2023MML Dynamic Bond Fund FIXED INCOME US TREASURY N/B 3,548,340 2,430,000 0.97 3.625 8/15/2043MML Dynamic Bond Fund FIXED INCOME MONONGAHELA POWER CO 204,098 145,000 0.06 5.4 12/15/2043MML Dynamic Bond Fund FIXED INCOME PETROBRAS GLOBAL FINANCE 113,950 100,000 0.03 7.25 3/17/2044MML Dynamic Bond Fund FIXED INCOME BOMBARDIER INC 83,475 90,000 0.02 6 10/15/2022MML Dynamic Bond Fund FIXED INCOME FERMACA ENTERPRISES S RL 226,663 211,835 0.06 6.375 3/30/2038MML Dynamic Bond Fund FIXED INCOME DELEK + AVNER TAMAR BD 101,691 100,000 0.03 5.412 12/30/2025MML Dynamic Bond Fund FIXED INCOME DELEK + AVNER TAMAR BD 101,711 100,000 0.03 5.082 12/30/2023MML Dynamic Bond Fund FIXED INCOME JBS USA LLC/JBS USA FINA 15,302 15,000 0.00 5.875 7/15/2024MML Dynamic Bond Fund FIXED INCOME GLOBAL SC FINANCE SRL 270,741 272,167 0.07 3.19 7/17/2029MML Dynamic Bond Fund FIXED INCOME INDYMAC INDX MORTGAGE LOAN TRU 2,175,024 2,434,559 0.60 3.398049 5/25/2037MML Dynamic Bond Fund FIXED INCOME COUNTRYWIDE HOME LOANS 1,096,841 1,230,360 0.30 3.359461 2/25/2047MML Dynamic Bond Fund FIXED INCOME KINDER MORGAN ENER PART 392,598 300,000 0.11 6.95 1/15/2038MML Dynamic Bond Fund FIXED INCOME COUNTRYWIDE HOME LOANS 1,236,310 1,535,313 0.34 6 9/25/2037MML Dynamic Bond Fund FIXED INCOME GSAA HOME EQUITY TRUST 2,666,370 3,847,264 0.73 6.5 11/25/2037MML Dynamic Bond Fund FIXED INCOME GENERAL ELECTRIC CO 263,105 225,000 0.07 5.875 1/14/2038MML Dynamic Bond Fund FIXED INCOME RESIDENTIAL FUNDING MTG SEC I 269,391 282,390 0.07 6 4/25/2037MML Dynamic Bond Fund FIXED INCOME LEHMAN XS TRUST 2,548,259 2,761,335 0.70 0.34813 7/25/2047MML Dynamic Bond Fund FIXED INCOME COUNTRYWIDE ALTERNATIVE LOAN T 1,429,797 1,983,305 0.39 6 5/25/2036MML Dynamic Bond Fund FIXED INCOME CALIFORNIA ST 332,428 190,000 0.09 7.55 4/1/2039MML Dynamic Bond Fund FIXED INCOME NOMURA ASSET ACCEPTANCE CORPOR 1,914,494 2,212,291 0.52 3.525764 2/25/2036MML Dynamic Bond Fund FIXED INCOME CSN ISLANDS XII 175,000 200,000 0.05 7 9/29/2049MML Dynamic Bond Fund FIXED INCOME COSAN OVERSEAS LTD 510,000 500,000 0.14 8.25 11/29/2049MML Dynamic Bond Fund FIXED INCOME FORD MOTOR CREDIT CO LLC 201,250 200,000 0.06 5.75 2/1/2021MML Dynamic Bond Fund FIXED INCOME VOYAGER OPTONE DELAWARE TRUST 1,709,832 2,222,178 0.47 11.628173 2/25/2038MML Dynamic Bond Fund FIXED INCOME KROGER CO 202,271 195,000 0.06 3.4 4/15/2022MML Dynamic Bond Fund FIXED INCOME BANCO DE CREDITO DEL PER 157,875 150,000 0.04 6.125 4/24/2027MML Dynamic Bond Fund FIXED INCOME US TREASURY N/B 384,761 300,000 0.11 2.75 11/15/2042MML Dynamic Bond Fund CASH US DOLLAR 12,884 12,884 0.00 0MML Dynamic Bond Fund FIXED INCOME MORGAN STANLEY MORTGAGE LOAN T 415,384 442,742 0.11 3.207926 7/25/2035MML Dynamic Bond Fund FIXED INCOME COUNTRYWIDE ALTERNATIVE LOAN T 1,496,102 1,808,264 0.41 6 8/25/2036MML Dynamic Bond Fund FIXED INCOME CITIMORTGAGE ALTERNATIVE LOAN 2,043,098 2,030,827 0.56 5.5 4/25/2036MML Dynamic Bond Fund FIXED INCOME COUNTRYWIDE ALTERNATIVE LOAN T 2,330,562 3,447,817 0.64 6.25 12/25/2036MML Dynamic Bond Fund FIXED INCOME ATHENE GLOBAL FUNDING 413,072 400,000 0.11 3 7/1/2022MML Dynamic Bond Fund FIXED INCOME KLOCKNER PENTAPLAST AMER INC 9,531 9,834 0.00 0 6/30/2022

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Dynamic Bond Fund FIXED INCOME BRAND ENERGY AND INFRASTRUCTUR 59,989 64,602 0.02 0 6/21/2024MML Dynamic Bond Fund FIXED INCOME BANCO MERCANTIL DE NORTE 398,760 400,000 0.11 7.625 12/31/2099MML Dynamic Bond Fund FIXED INCOME ENN ENERGY HOLDINGS LTD 205,409 200,000 0.06 3.25 7/24/2022MML Dynamic Bond Fund FIXED INCOME SOCIAL PROFESSIONAL LOAN PROGR 347,435 350,000 0.10 3.61 9/25/2040MML Dynamic Bond Fund FIXED INCOME MORGAN STANLEY 258,679 230,000 0.07 3.591 7/22/2028MML Dynamic Bond Fund FIXED INCOME TRIP RAIL MASTER FUNDING LLC 138,295 138,172 0.04 2.709 8/15/2047MML Dynamic Bond Fund FIXED INCOME CROWN CASTLE INTL CORP 514,729 460,000 0.14 3.65 9/1/2027MML Dynamic Bond Fund FIXED INCOME UBS COMMERCIAL MORTGAGE TRUST 354,020 332,000 0.10 3.993 8/15/2050MML Dynamic Bond Fund FIXED INCOME SPARC EM SPC PANAMA METR 184,293 190,236 0.05 0.01 12/5/2022MML Dynamic Bond Fund FIXED INCOME US TREASURY N/B 813,453 725,000 0.22 2.25 8/15/2027MML Dynamic Bond Fund FIXED INCOME VEDANTA RESOURCES LTD 422,728 600,000 0.12 6.125 8/9/2024MML Dynamic Bond Fund FIXED INCOME AIR LEASE CORP 479,589 470,000 0.13 3.75 2/1/2022MML Dynamic Bond Fund FIXED INCOME DISH DBS CORP 41,020 40,000 0.01 5.875 11/15/2024MML Dynamic Bond Fund FIXED INCOME PETSMART INC 75,656 75,000 0.02 7.125 3/15/2023MML Dynamic Bond Fund FIXED INCOME FED HM LN PC POOL G08632 1,843,572 1,712,866 0.50 3.5 3/1/2045MML Dynamic Bond Fund FIXED INCOME FNMA POOL MA2248 1,440,462 1,390,897 0.39 3 4/1/2045MML Dynamic Bond Fund FIXED INCOME REPUBLIC OF PANAMA 218,302 200,000 0.06 3.75 3/16/2025MML Dynamic Bond Fund FIXED INCOME CSAIL COMMERCIAL MORTGAGE TRUS 242,973 8,278,785 0.07 0.976197 4/15/2050MML Dynamic Bond Fund FIXED INCOME JPMBB COMMERCIAL MORTGAGE SECU 350,579 340,000 0.10 3.986 10/15/2048MML Dynamic Bond Fund FIXED INCOME JPMBB COMMERCIAL MORTGAGE SECU 224,341 6,746,970 0.06 1.110375 10/15/2048MML Dynamic Bond Fund FIXED INCOME AMERICAN TIRE DISTRIBUTORS H. 25,159 29,699 0.01 0 9/2/2024MML Dynamic Bond Fund FIXED INCOME SYDNEY AIRPORT FINANCE 317,189 300,000 0.09 3.375 4/30/2025MML Dynamic Bond Fund FIXED INCOME EMPRESA ELEC GUACOLDA 327,061 400,000 0.09 4.56 4/30/2025MML Dynamic Bond Fund FIXED INCOME ESH HOSPITALITY INC 70,700 70,000 0.02 5.25 5/1/2025MML Dynamic Bond Fund FIXED INCOME ABBVIE INC 320,138 260,000 0.09 4.7 5/14/2045MML Dynamic Bond Fund FIXED INCOME GNL QUINTERO SA 267,638 250,000 0.07 4.634 7/31/2029MML Dynamic Bond Fund FIXED INCOME REPUBLIC OF PANAMA 218,702 200,000 0.06 4 9/22/2024MML Dynamic Bond Fund FIXED INCOME CLI FUNDING LLC 263,356 263,330 0.07 3.38 10/18/2029MML Dynamic Bond Fund FIXED INCOME VERIZON COMMUNICATIONS 604,637 485,000 0.17 4.4 11/1/2034MML Dynamic Bond Fund FIXED INCOME JPMBB COMMERCIAL MORTGAGE SECU 117,587 4,163,829 0.03 0.998077 11/15/2047MML Dynamic Bond Fund FIXED INCOME DUKE ENERGY PROGRESS LLC 392,690 315,000 0.11 4.15 12/1/2044MML Dynamic Bond Fund FIXED INCOME EMPRESA ELECTRICA ANGAMO 156,696 156,500 0.04 4.875 5/25/2029MML Dynamic Bond Fund FIXED INCOME GS MORTGAGE SECURITIES TRUST 757,814 1,258,000 0.21 4.661696 11/10/2047MML Dynamic Bond Fund FIXED INCOME OOREDOO INTL FINANCE 417,840 400,000 0.11 3.25 2/21/2023MML Dynamic Bond Fund FIXED INCOME CHARTER COMM OPT LLC/CAP 375,772 325,000 0.10 4.908 7/23/2025MML Dynamic Bond Fund FIXED INCOME HERO FUNDING TRUST 216,093 205,670 0.06 4.29 9/20/2047MML Dynamic Bond Fund FIXED INCOME BLUEMOUNTAIN CLO LTD 911,785 1,000,000 0.25 4.42175 1/20/2029MML Dynamic Bond Fund FIXED INCOME ALM LOAN FUNDING 1,000,017 1,000,000 0.27 4.315 10/15/2028MML Dynamic Bond Fund FIXED INCOME CVENT INC 89,383 99,237 0.02 0 11/29/2024MML Dynamic Bond Fund FIXED INCOME TERVITA CORP 95,813 105,000 0.03 7.625 12/1/2021MML Dynamic Bond Fund FIXED INCOME WELLS FARGO COMMERCIAL MORTGAG 382,335 376,000 0.10 4.638904 12/15/2049MML Dynamic Bond Fund FIXED INCOME BASS PRO GROUP LLC 59,058 59,692 0.02 0 9/25/2024MML Dynamic Bond Fund FIXED INCOME FLEX ACQUISITION CO INC 70,533 72,249 0.02 0 12/29/2023MML Dynamic Bond Fund FIXED INCOME FLEX ACQUISITION CO INC 89,945 90,000 0.02 6.875 1/15/2025MML Dynamic Bond Fund FIXED INCOME SOPHIA L P 198,557 199,597 0.05 0 9/30/2022MML Dynamic Bond Fund FIXED INCOME EMPRESA DE TRANSPORTE ME 935,625 750,000 0.26 5 1/25/2047MML Dynamic Bond Fund FIXED INCOME SMITHFIELD FOODS INC 453,458 415,000 0.12 4.25 2/1/2027MML Dynamic Bond Fund FIXED INCOME MOSAIC SOLAR LOANS LLC 424,633 395,592 0.12 4.45 6/20/2042

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Dynamic Bond Fund FIXED INCOME AES ARGENTINA GENERACION 103,781 150,000 0.03 7.75 2/2/2024MML Dynamic Bond Fund FIXED INCOME CROWN CASTLE INTL CORP 255,661 225,000 0.07 4 3/1/2027MML Dynamic Bond Fund FIXED INCOME RADIATE HOLDCO LLC 97,715 99,487 0.03 0 2/1/2024MML Dynamic Bond Fund FIXED INCOME OCTAGON INVESTMENT PARTNERS 30 947,872 1,000,000 0.26 3.77175 3/17/2030MML Dynamic Bond Fund FIXED INCOME WIND RIVER CLO LTD 962,726 1,000,000 0.26 4.02175 4/18/2029MML Dynamic Bond Fund FIXED INCOME DISCOVER FINANCIAL SVS 632,112 570,000 0.17 4.1 2/9/2027MML Dynamic Bond Fund FIXED INCOME PEABODY ENERGY CORP 60,900 105,000 0.02 6 3/31/2022MML Dynamic Bond Fund FIXED INCOME ONE MARKET PLAZA TRUST 387,688 381,000 0.11 4.1416 2/10/2032MML Dynamic Bond Fund FIXED INCOME GRIPPEN PARK CLO LTD 973,017 1,000,000 0.27 3.57175 1/20/2030MML Dynamic Bond Fund FIXED INCOME TRANSDIGM INC 60,236 60,000 0.02 6.375 6/15/2026MML Dynamic Bond Fund FIXED INCOME ENABLE MIDSTREAM PARTNER 162,924 170,000 0.04 4.4 3/15/2027MML Dynamic Bond Fund FIXED INCOME MCDONALD S CORP 236,943 190,000 0.06 4.45 3/1/2047MML Dynamic Bond Fund FIXED INCOME DTE ENERGY CO 558,285 500,000 0.15 3.8 3/15/2027MML Dynamic Bond Fund FIXED INCOME PENSKE TRUCK LEASING/PTL 252,280 225,000 0.07 4.2 4/1/2027MML Dynamic Bond Fund FIXED INCOME CAESARS RESORT / FINCO 125,775 130,000 0.03 5.25 10/15/2025MML Dynamic Bond Fund FIXED INCOME GOLDEN NUGGET INC 146,125 175,000 0.04 6.75 10/15/2024MML Dynamic Bond Fund FIXED INCOME PAREXEL INTL CORP 148,510 155,000 0.04 0 9/27/2024MML Dynamic Bond Fund FIXED INCOME FREDDIEMAC STRIP 2,750,500 2,555,432 0.75 3 8/15/2047MML Dynamic Bond Fund FIXED INCOME GILBERT PARK CLO LTD 920,216 1,000,000 0.25 6.675 10/15/2030MML Dynamic Bond Fund FIXED INCOME UNITED OVERSEAS BANK LTD 306,915 300,000 0.08 3.875 12/31/2099MML Dynamic Bond Fund FIXED INCOME BEACON ROOFING SUPPLY IN 156,800 160,000 0.04 4.875 11/1/2025MML Dynamic Bond Fund FIXED INCOME BANCO SANTANDER SA 400,903 400,000 0.11 1.34613 2/23/2023MML Dynamic Bond Fund FIXED INCOME PROJECT ALPHA INTERMEDIATE HL 184,970 188,745 0.05 0 4/26/2024MML Dynamic Bond Fund FIXED INCOME SELECT MED CORP 111,694 115,000 0.03 0 3/6/2025MML Dynamic Bond Fund FIXED INCOME US TREASURY N/B 4,681,753 4,325,000 1.28 2.25 10/31/2024MML Dynamic Bond Fund FIXED INCOME FREDDIEMAC STRIP 2,429,644 2,256,279 0.67 3 10/15/2047MML Dynamic Bond Fund FIXED INCOME LLOYDS BANKING GROUP PLC 438,233 400,000 0.12 3.574 11/7/2028MML Dynamic Bond Fund FIXED INCOME JBS USA LLC/JBS USA FINA 20,616 20,000 0.01 5.75 6/15/2025MML Dynamic Bond Fund FIXED INCOME RBSSP RESECURITIZATION TRUST 706,568 956,696 0.19 6.5 10/26/2037MML Dynamic Bond Fund FIXED INCOME XCEL ENERGY INC 1,103,560 1,000,000 0.30 3.3 6/1/2025MML Dynamic Bond Fund FIXED INCOME GOVERNMENT NATIONAL MORTGAGE A 3,704,497 3,451,120 1.01 3.5 5/20/2045MML Dynamic Bond Fund FIXED INCOME WASHINGTON MUTUAL MORTGAGE PAS 954,933 1,008,439 0.26 6.35 5/25/2036MML Dynamic Bond Fund FIXED INCOME JPMBB COMMERCIAL MORTGAGE SECU 303,063 325,000 0.08 4.351942 5/15/2048MML Dynamic Bond Fund FIXED INCOME JPMBB COMMERCIAL MORTGAGE SECU 197,027 7,836,148 0.05 0.834276 5/15/2048MML Dynamic Bond Fund FIXED INCOME MORGAN STANLEY BAML TRUST 602,560 650,000 0.16 4.288623 7/15/2050MML Dynamic Bond Fund FIXED INCOME ENERGY TRANSFER OPERATNG 500,528 470,000 0.14 4.75 1/15/2026MML Dynamic Bond Fund FIXED INCOME CITIGROUP COMMERCIAL MORTGAGE 673,347 700,000 0.18 4.19044 6/10/2048MML Dynamic Bond Fund FIXED INCOME FREDDIE MAC 4,547,708 4,321,284 1.24 3 6/15/2044MML Dynamic Bond Fund FIXED INCOME FREDDIE MAC 4,196,227 4,071,049 1.15 3 12/15/2042MML Dynamic Bond Fund FIXED INCOME GOVERNMENT NATIONAL MORTGAGE A 5,972,567 5,491,254 1.63 3.5 6/20/2045MML Dynamic Bond Fund FIXED INCOME WELLS FARGO COMMERCIAL MORTGAG 271,630 10,216,900 0.07 0.808278 7/15/2058MML Dynamic Bond Fund FIXED INCOME JPMBB COMMERCIAL MORTGAGE SECU 197,899 9,396,509 0.05 0.653086 7/15/2048MML Dynamic Bond Fund FIXED INCOME KRONOS ACQUISITION HOLDI 106,444 105,000 0.03 9 8/15/2023MML Dynamic Bond Fund FIXED INCOME KRONOS ACQUISITION HLDGS INC 49,552 49,938 0.01 0 5/15/2023MML Dynamic Bond Fund FIXED INCOME JPMBB COMMERCIAL MORTGAGE SECU 79,931 87,000 0.02 4.803551 11/15/2048MML Dynamic Bond Fund FIXED INCOME FEDEX CORP 241,268 195,000 0.07 4.75 11/15/2045MML Dynamic Bond Fund FIXED INCOME FANNIE MAE 650,992 607,248 0.18 3 1/25/2045MML Dynamic Bond Fund FIXED INCOME LOCKHEED MARTIN CORP 429,245 315,000 0.12 4.7 5/15/2046

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Dynamic Bond Fund FIXED INCOME GS MORTGAGE SECURITIES TRUST 264,779 7,883,131 0.07 0.915281 11/10/2048MML Dynamic Bond Fund FIXED INCOME JPMBB COMMERCIAL MORTGAGE SECU 499,098 527,000 0.14 4.765348 12/15/2048MML Dynamic Bond Fund FIXED INCOME MORGAN STANLEY BAML TRUST 322,490 504,000 0.09 3.237 12/15/2047MML Dynamic Bond Fund FIXED INCOME MORGAN STANLEY BAML TRUST 323,694 351,000 0.09 4.675065 12/15/2047MML Dynamic Bond Fund FIXED INCOME MORGAN STANLEY CAPITAL I TRUST 235,203 6,253,784 0.06 1.029254 12/15/2048MML Dynamic Bond Fund FIXED INCOME WELLS FARGO COMMERCIAL MORTGAG 175,058 5,089,318 0.05 1.075902 12/15/2048MML Dynamic Bond Fund FIXED INCOME JP MORGAN CHASE COMMERCIAL MOR 152,212 4,998,818 0.04 1.190553 1/15/2049MML Dynamic Bond Fund FIXED INCOME MISSOURI ST HIGHWAYS TRANSIT 152,292 135,000 0.04 5.063 5/1/2024MML Dynamic Bond Fund FIXED INCOME CFCRE COMMERCIAL MORTGAGE TRUS 243,880 5,585,728 0.07 1.161812 1/10/2048MML Dynamic Bond Fund FIXED INCOME COMM MORTGAGE TRUST 464,059 465,000 0.13 4.794134 2/10/2049MML Dynamic Bond Fund FIXED INCOME CITIGROUP COMMERCIAL MORTGAGE 124,465 201,000 0.03 2.85 2/10/2049MML Dynamic Bond Fund FIXED INCOME SOLERA HOLDINGS INC. 194,088 198,442 0.05 0 3/3/2023MML Dynamic Bond Fund FIXED INCOME FIDEICOMISO PA PACIFICO 232,000 200,000 0.06 8.25 1/15/2035MML Dynamic Bond Fund FIXED INCOME SYDNEY AIRPORT FINANCE 324,270 300,000 0.09 3.625 4/28/2026MML Dynamic Bond Fund FIXED INCOME MALAYAN BANKING BHD 305,967 300,000 0.08 3.905 10/29/2026MML Dynamic Bond Fund FIXED INCOME CROWN CASTLE INTL CORP 780,689 700,000 0.21 3.7 6/15/2026MML Dynamic Bond Fund FIXED INCOME AES ANDRS/DMCN PWR/ITABO 508,130 500,000 0.14 7.95 5/11/2026MML Dynamic Bond Fund FIXED INCOME NEXTERA ENERGY CAPITAL 220,399 195,000 0.06 3.55 5/1/2027MML Dynamic Bond Fund FIXED INCOME GARDA WORLD SECURITY 95,950 95,000 0.03 8.75 5/15/2025MML Dynamic Bond Fund FIXED INCOME FINASTRA USA, INC. 18,730 20,000 0.01 0 6/13/2025MML Dynamic Bond Fund FIXED INCOME CITIGROUP INC 640,552 635,000 0.18 1.38013 5/17/2024MML Dynamic Bond Fund FIXED INCOME RADIANT ACCESS LTD 200,336 200,000 0.05 4.6 12/31/2099MML Dynamic Bond Fund FIXED INCOME U S COATINGS ACQUISITION INC 268,133 274,958 0.07 0 6/1/2024MML Dynamic Bond Fund FIXED INCOME SUNCOKE ENGY PART FIN CO 108,242 120,000 0.03 7.5 6/15/2025MML Dynamic Bond Fund FIXED INCOME BECTON DICKINSON AND CO 631,600 610,000 0.17 2.894 6/6/2022MML Dynamic Bond Fund FIXED INCOME HOME DEPOT INC 271,622 220,000 0.07 3.9 6/15/2047MML Dynamic Bond Fund FIXED INCOME GTT COMMUNICATIONS INC 25,750 50,000 0.01 7.875 12/31/2024MML Dynamic Bond Fund FIXED INCOME PETSMART INC 39,920 39,000 0.01 5.875 6/1/2025MML Dynamic Bond Fund FIXED INCOME ARROW ELECTRONICS INC 216,194 195,000 0.06 3.875 1/12/2028MML Dynamic Bond Fund FIXED INCOME ALPINE FIN MERGER SUB LLC 155,868 158,242 0.04 0 7/12/2024MML Dynamic Bond Fund FIXED INCOME COMPASS PWR GENERATION L L C 53,182 54,198 0.01 0 12/20/2024MML Dynamic Bond Fund FIXED INCOME HCA INC 138,125 125,000 0.04 5.375 9/1/2026MML Dynamic Bond Fund FIXED INCOME DRYDEN SENIOR LOAN FUND 478,479 500,000 0.13 3.38013 8/15/2031MML Dynamic Bond Fund FIXED INCOME VERSCEND ESCROW CORP 257,688 237,000 0.07 9.75 8/15/2026MML Dynamic Bond Fund FIXED INCOME APACHE CORP 54,900 60,000 0.02 4.375 10/15/2028MML Dynamic Bond Fund FIXED INCOME WILLIS ENGINE SECURITIZATION T 658,953 781,267 0.18 4.75 9/15/2043MML Dynamic Bond Fund FIXED INCOME SYMPHONY CLO LTD 470,183 500,000 0.13 3.325 10/15/2031MML Dynamic Bond Fund FIXED INCOME HIGHBRIDGE LOAN MANAGEMENT LTD 456,435 500,000 0.12 3.275 10/15/2030MML Dynamic Bond Fund FIXED INCOME WILLIS NORTH AMERICA INC 428,044 360,000 0.12 4.5 9/15/2028MML Dynamic Bond Fund FIXED INCOME INTELSAT JACKSON HLDG 54,825 85,000 0.02 8.5 10/15/2024MML Dynamic Bond Fund FIXED INCOME CARVANA CO 41,775 40,000 0.01 8.875 10/1/2023MML Dynamic Bond Fund FIXED INCOME INTERPUBLIC GROUP COS 353,168 300,000 0.10 5.4 10/1/2048MML Dynamic Bond Fund FIXED INCOME CREDIT SUISSE GROUP AG 433,504 430,000 0.12 1.48913 6/12/2024MML Dynamic Bond Fund FIXED INCOME FREDDIE MAC SCRT 3,015,189 2,782,757 0.83 3 11/25/2057MML Dynamic Bond Fund FIXED INCOME DBGS MORTGAGE TRUST 499,709 550,000 0.14 2.60238 6/15/2033MML Dynamic Bond Fund FIXED INCOME US TREASURY N/B 5,562,254 5,460,000 1.52 1.75 11/30/2021MML Dynamic Bond Fund FIXED INCOME US TREASURY N/B 4,566,259 4,060,000 1.25 2.25 11/15/2027MML Dynamic Bond Fund FIXED INCOME US TREASURY N/B 3,541,755 2,720,000 0.97 2.75 11/15/2047

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Dynamic Bond Fund FIXED INCOME CORNING INC 217,947 180,000 0.06 4.375 11/15/2057MML Dynamic Bond Fund FIXED INCOME QEP RESOURCES INC 93,638 165,000 0.03 5.625 3/1/2026MML Dynamic Bond Fund FIXED INCOME FINASTRA USA, INC. 59,713 64,019 0.02 0 6/13/2024MML Dynamic Bond Fund FIXED INCOME INTELSAT JACKSON HLDGS S A 155,538 155,000 0.04 0 11/27/2023MML Dynamic Bond Fund FIXED INCOME AMERICAN AIRLS INC 60,937 74,853 0.02 0 12/15/2023MML Dynamic Bond Fund FIXED INCOME AERCAP IRELAND CAP/GLOBA 438,392 450,000 0.12 3.5 1/15/2025MML Dynamic Bond Fund FIXED INCOME GO DADDY OPER CO LLC 238,229 243,325 0.07 0 2/15/2024MML Dynamic Bond Fund FIXED INCOME SPRITE LIMITED 293,773 322,873 0.08 4.25 12/15/2037MML Dynamic Bond Fund FIXED INCOME MACQUARIE GROUP LTD 167,302 160,000 0.05 3.189 11/28/2023MML Dynamic Bond Fund FIXED INCOME UNION BK OF PHILIPPINES 415,898 400,000 0.11 3.369 11/29/2022MML Dynamic Bond Fund FIXED INCOME GS MORTGAGE SECURITIES TRUST 357,994 340,000 0.10 4.676808 5/10/2049MML Dynamic Bond Fund FIXED INCOME MPH ACQUISITION HOLDINGS 164,376 160,000 0.04 7.125 6/1/2024MML Dynamic Bond Fund FIXED INCOME CENGAGE LEARNING INC 49,500 75,000 0.01 9.5 6/15/2024MML Dynamic Bond Fund FIXED INCOME CENGAGE LEARNING ACQUISITIONS 61,936 74,302 0.02 0 6/7/2023MML Dynamic Bond Fund FIXED INCOME SUNOCO LOGISTICS PARTNER 770,136 750,000 0.21 3.9 7/15/2026MML Dynamic Bond Fund FIXED INCOME JP MORGAN CHASE COMMERCIAL MOR 177,668 174,000 0.05 3.4595 8/15/2049MML Dynamic Bond Fund FIXED INCOME WELLS FARGO COMMERCIAL MORTGAG 335,171 328,000 0.09 3.438 7/15/2048MML Dynamic Bond Fund FIXED INCOME FNMA POOL AS7661 958,121 925,153 0.26 3 8/1/2046MML Dynamic Bond Fund FIXED INCOME DUKE ENERGY CORP 102,745 90,000 0.03 3.75 9/1/2046MML Dynamic Bond Fund FIXED INCOME KRAFT HEINZ FOODS CO 46,060 40,000 0.01 5 7/15/2035MML Dynamic Bond Fund FIXED INCOME KRAFT HEINZ FOODS CO 125,722 115,000 0.03 5.2 7/15/2045MML Dynamic Bond Fund FIXED INCOME DBS GROUP HOLDINGS LTD 603,000 600,000 0.17 3.6 12/31/2099MML Dynamic Bond Fund FIXED INCOME SHIRE ACQ INV IRELAND DA 402,781 380,000 0.11 2.875 9/23/2023MML Dynamic Bond Fund FIXED INCOME UPL CORP LTD 202,506 200,000 0.06 3.25 10/13/2021MML Dynamic Bond Fund FIXED INCOME SIERRA PACIFIC POWER CO 1,089,884 1,000,000 0.30 2.6 5/1/2026MML Dynamic Bond Fund FIXED INCOME TEMPUR SEALY INTL INC 247,032 238,000 0.07 5.5 6/15/2026MML Dynamic Bond Fund FIXED INCOME CSX CORP 466,102 400,000 0.13 3.8 11/1/2046MML Dynamic Bond Fund FIXED INCOME PETSMART INC 182,105 182,661 0.05 0 3/11/2022MML Dynamic Bond Fund FIXED INCOME BANCO MACRO SA 153,800 200,000 0.04 6.75 11/4/2026MML Dynamic Bond Fund FIXED INCOME SAUDI INTERNATIONAL BOND 203,251 200,000 0.06 2.375 10/26/2021MML Dynamic Bond Fund FIXED INCOME BLACKBIRD CAPITAL AIRCRAFT 503,145 770,833 0.14 5.682 12/16/2041MML Dynamic Bond Fund FIXED INCOME MINEJESA CAPITAL BV 411,044 400,000 0.11 4.625 8/10/2030MML Dynamic Bond Fund FIXED INCOME ASURION LLC 46,980 46,970 0.01 0 8/4/2025MML Dynamic Bond Fund FIXED INCOME DUKE ENERGY CORP 283,503 240,000 0.08 3.95 8/15/2047MML Dynamic Bond Fund FIXED INCOME WEST STREET MERGER SUB 147,870 145,000 0.04 6.375 9/1/2025MML Dynamic Bond Fund FIXED INCOME GULFPORT ENERGY CORP 64,050 105,000 0.02 6.375 5/15/2025MML Dynamic Bond Fund FIXED INCOME CIM TRUST 1,748,777 1,759,989 0.48 3.015 6/25/2057MML Dynamic Bond Fund FIXED INCOME BDO UNIBANK INC 311,261 300,000 0.09 2.95 3/6/2023MML Dynamic Bond Fund FIXED INCOME DIAMOND (BC) B V 69,320 74,338 0.02 0 9/6/2024MML Dynamic Bond Fund FIXED INCOME HASBRO INC 260,213 250,000 0.07 3.5 9/15/2027MML Dynamic Bond Fund FIXED INCOME VIKING CRUISES LTD 124,400 160,000 0.03 5.875 9/15/2027MML Dynamic Bond Fund FIXED INCOME GEOPARK LTD 189,500 200,000 0.05 6.5 9/21/2024MML Dynamic Bond Fund FIXED INCOME CLUBCORP HLDGS INC 29,565 34,731 0.01 0 9/18/2024MML Dynamic Bond Fund FIXED INCOME US TREASURY N/B 4,379,982 4,070,000 1.20 2.125 9/30/2024MML Dynamic Bond Fund FIXED INCOME GOLDEN NUGGET, INC. 137,399 154,565 0.04 0 10/4/2023MML Dynamic Bond Fund FIXED INCOME PILGRIM S PRIDE CORP 87,763 85,000 0.02 5.875 9/30/2027MML Dynamic Bond Fund FIXED INCOME HOSPITALITY MORTGAGE TRUST 358,943 412,255 0.10 3.30238 11/15/2036MML Dynamic Bond Fund FIXED INCOME JOL AIR 424,175 447,332 0.12 3.967 4/15/2044

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Dynamic Bond Fund FIXED INCOME BUILDERS FIRSTSOURCE INC 117,838 110,000 0.03 6.75 6/1/2027MML Dynamic Bond Fund FIXED INCOME HCA INC 243,176 215,000 0.07 4.125 6/15/2029MML Dynamic Bond Fund FIXED INCOME WELLS FARGO + COMPANY 267,376 245,000 0.07 3.196 6/17/2027MML Dynamic Bond Fund FIXED INCOME NXP BV/NXP FDG/NXP USA 212,856 190,000 0.06 3.875 6/18/2026MML Dynamic Bond Fund FIXED INCOME BOSTON PROPERTIES LP 473,264 435,000 0.13 3.4 6/21/2029MML Dynamic Bond Fund FIXED INCOME CNAC HK FINBRIDGE CO LTD 207,790 200,000 0.06 3.375 6/19/2024MML Dynamic Bond Fund FIXED INCOME CHARTER NEX US HOLDINGS INC 47,762 49,039 0.01 0 5/16/2024MML Dynamic Bond Fund FIXED INCOME HILTON WORLDWIDE FINANCE LLC 62,636 65,000 0.02 0 6/22/2026MML Dynamic Bond Fund FIXED INCOME CSAIL COMMERCIAL MORTGAGE TRUS 360,271 334,000 0.10 3.8846 6/15/2052MML Dynamic Bond Fund FIXED INCOME NEXSTAR BROADCASTING INC 68,275 65,000 0.02 5.625 7/15/2027MML Dynamic Bond Fund FIXED INCOME TITAN ACQUISITION LIMITED 37,357 39,649 0.01 0 3/28/2025MML Dynamic Bond Fund FIXED INCOME PARKLAND CORP 141,919 135,000 0.04 5.875 7/15/2027MML Dynamic Bond Fund FIXED INCOME ALLIED UNIVERSAL 74,550 70,000 0.02 6.625 7/15/2026MML Dynamic Bond Fund FIXED INCOME ALLIED UNIVERSAL 141,248 130,000 0.04 9.75 7/15/2027MML Dynamic Bond Fund FIXED INCOME BLACKSTONE CQP HOLDCO LP 77,591 79,397 0.02 0 9/30/2024MML Dynamic Bond Fund FIXED INCOME LIONS GATE CAPITAL HOLD 158,400 160,000 0.04 6.375 2/1/2024MML Dynamic Bond Fund FIXED INCOME US TREASURY N/B 740,928 660,000 0.20 2.625 1/31/2026MML Dynamic Bond Fund FIXED INCOME LLPL CAPITAL PTE LTD 324,352 281,700 0.09 6.875 2/4/2039MML Dynamic Bond Fund FIXED INCOME TRANSDIGM INC 156,644 150,000 0.04 6.25 3/15/2026MML Dynamic Bond Fund FIXED INCOME BANK OF AMERICA CORP 405,578 350,000 0.11 3.974 2/7/2030MML Dynamic Bond Fund FIXED INCOME LATAM FINANCE LTD 111,000 300,000 0.03 7 3/1/2026MML Dynamic Bond Fund FIXED INCOME BANK OF NOVA SCOTIA 108,643 100,000 0.03 3.4 2/11/2024MML Dynamic Bond Fund FIXED INCOME WRKCO INC 469,361 420,000 0.13 3.75 3/15/2025MML Dynamic Bond Fund FIXED INCOME ANCHORAGE CAPITAL CLO LTD 499,083 500,000 0.14 2.275 4/15/2032MML Dynamic Bond Fund FIXED INCOME BANK OF NEW ZEALAND 577,249 530,000 0.16 3.5 2/20/2024MML Dynamic Bond Fund FIXED INCOME BANCO BTG PACTUAL/CAYMAN 205,750 200,000 0.06 7.75 2/15/2029MML Dynamic Bond Fund FIXED INCOME ALTRIA GROUP INC 563,632 475,000 0.15 4.8 2/14/2029MML Dynamic Bond Fund FIXED INCOME DUN + BRADSTREET CORP 152,451 154,225 0.04 0 2/6/2026MML Dynamic Bond Fund FIXED INCOME UNITED NATURAL FOODS INC 27,783 28,564 0.01 0 10/22/2025MML Dynamic Bond Fund FIXED INCOME ANTERO MIDSTREAM PART/FI 44,685 54,000 0.01 5.75 3/1/2027MML Dynamic Bond Fund FIXED INCOME BOC AVIATION LTD 551,813 565,000 0.15 1.35825 9/26/2023MML Dynamic Bond Fund FIXED INCOME US TREASURY N/B 4,517,286 3,980,000 1.24 3 9/30/2025MML Dynamic Bond Fund FIXED INCOME HILCORP ENERGY I/HILCORP 91,000 100,000 0.02 6.25 11/1/2028MML Dynamic Bond Fund FIXED INCOME ENTERPRISE MERGER SUB INC 32,115 44,659 0.01 0 10/10/2025MML Dynamic Bond Fund FIXED INCOME MSCG TRUST 372,892 413,000 0.10 3.20238 10/15/2037MML Dynamic Bond Fund FIXED INCOME MADISON PARK FUNDING LTD 462,498 500,000 0.13 3.20775 10/22/2030MML Dynamic Bond Fund FIXED INCOME SUNOCO LP/FINANCE CORP 129,838 130,000 0.04 5.5 2/15/2026MML Dynamic Bond Fund FIXED INCOME HYLAND SOFTWARE INC 221,956 223,118 0.06 0 7/1/2024MML Dynamic Bond Fund FIXED INCOME HD SUPPLY INC 318,785 320,101 0.09 0 10/17/2023MML Dynamic Bond Fund FIXED INCOME CHARLES SCHWAB CORP 507,864 465,000 0.14 3.55 2/1/2024MML Dynamic Bond Fund FIXED INCOME GRAY TELEVISION INC 157,200 145,000 0.04 7 5/15/2027MML Dynamic Bond Fund FIXED INCOME VOLKSWAGEN GROUP AMERICA 241,733 220,000 0.07 4.25 11/13/2023MML Dynamic Bond Fund FIXED INCOME GRAFTECH INTL LTD 39,658 40,228 0.01 0 2/12/2025MML Dynamic Bond Fund FIXED INCOME TACO BELL FUNDING, LLC 1,003,377 982,500 0.27 4.318 11/25/2048MML Dynamic Bond Fund FIXED INCOME DUPONT DE NEMOURS INC 274,116 205,000 0.08 5.419 11/15/2048MML Dynamic Bond Fund FIXED INCOME WEB.COM GROUP INC 38,570 40,000 0.01 0 10/10/2025MML Dynamic Bond Fund FIXED INCOME TPG REAL ESTATE FINANCE 309,122 314,000 0.08 1.6005 11/15/2037MML Dynamic Bond Fund FIXED INCOME CSAIL COMMERCIAL MORTGAGE TRUS 429,091 405,000 0.12 5.054177 11/15/2051

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Dynamic Bond Fund FIXED INCOME EQUITABLE HOLDINGS INC 413,923 385,000 0.11 3.9 4/20/2023MML Dynamic Bond Fund FIXED INCOME TRANSOCEAN POSEIDON LTD 120,222 150,000 0.03 6.875 2/1/2027MML Dynamic Bond Fund FIXED INCOME FLEX ACQUISITION CO INC 24,219 25,000 0.01 0 6/29/2025MML Dynamic Bond Fund FIXED INCOME ALEXANDRIA REAL ESTATE E 352,367 320,000 0.10 4 1/15/2024MML Dynamic Bond Fund FIXED INCOME MARVELL TECHNOLOGY GROUP 415,665 385,000 0.11 4.2 6/22/2023MML Dynamic Bond Fund FIXED INCOME NATIXIS COMMERCIAL MORTGAGE SE 334,686 368,000 0.09 2.36188 6/15/2035MML Dynamic Bond Fund FIXED INCOME AVAYA INC 69,541 70,000 0.02 0 12/15/2024MML Dynamic Bond Fund FIXED INCOME BLACKHAWK NETWORK HLDGS INC 108,541 115,431 0.03 0 6/15/2025MML Dynamic Bond Fund FIXED INCOME ION TRADING TECHNOLOGIES SARL 19,390 19,794 0.01 0 11/21/2024MML Dynamic Bond Fund FIXED INCOME CHENIERE ENERGY PARTNERS 30,690 30,000 0.01 5.25 10/1/2025MML Dynamic Bond Fund FIXED INCOME H FOOD HOLDINGS LLC 48,018 49,556 0.01 0 5/23/2025MML Dynamic Bond Fund FIXED INCOME MLN US HOLDCO LLC 16,859 19,798 0.00 0 11/30/2025MML Dynamic Bond Fund FIXED INCOME GS MORTGAGE SECURITIES TRUST 305,247 329,000 0.08 1.40238 7/15/2035MML Dynamic Bond Fund FIXED INCOME THUNDERBOLT AIRCRAFT LEASE LIM 416,372 442,900 0.11 4.147 9/15/2038MML Dynamic Bond Fund FIXED INCOME ALLIED UNIVERSAL HOLDCO LLC 127,459 129,025 0.03 0 7/10/2026MML Dynamic Bond Fund FIXED INCOME IMPERIAL BRANDS FIN PLC 286,688 265,000 0.08 3.5 7/26/2026MML Dynamic Bond Fund FIXED INCOME CONSTELLATION BRANDS INC 218,320 200,000 0.06 3.15 8/1/2029MML Dynamic Bond Fund FIXED INCOME GLOBAL AIR LEASE CO LTD 60,659 108,806 0.02 6.5 9/15/2024MML Dynamic Bond Fund FIXED INCOME SELECT MEDICAL CORP 156,000 150,000 0.04 6.25 8/15/2026MML Dynamic Bond Fund FIXED INCOME MISTER CAR WASH HLDNGS INC 61,166 64,836 0.02 0 5/14/2026MML Dynamic Bond Fund FIXED INCOME US TREASURY N/B 3,920,759 3,600,000 1.07 1.625 8/15/2029MML Dynamic Bond Fund FIXED INCOME CITIGROUP COMMERCIAL MORTGAGE 404,212 377,000 0.11 3.1992 8/10/2056MML Dynamic Bond Fund FIXED INCOME OCCIDENTAL PETROLEUM COR 49,803 65,000 0.01 3.5 8/15/2029MML Dynamic Bond Fund FIXED INCOME ONEOK INC 137,172 140,000 0.04 3.4 9/1/2029MML Dynamic Bond Fund FIXED INCOME TENET HEALTHCARE CORP 159,216 155,000 0.04 5.125 11/1/2027MML Dynamic Bond Fund FIXED INCOME CIGNA CORP 207,118 205,000 0.06 1.165 7/15/2023MML Dynamic Bond Fund FIXED INCOME CIGNA CORP 343,973 265,000 0.09 4.9 12/15/2048MML Dynamic Bond Fund FIXED INCOME PRIMROSE SCHOOLS 1,027,079 992,500 0.28 4.475 7/30/2049MML Dynamic Bond Fund FIXED INCOME GSCG TRUST 467,145 497,000 0.13 4.117937 9/6/2034MML Dynamic Bond Fund FIXED INCOME FED HM LN PC POOL SB0048 2,275,412 2,142,192 0.62 3 8/1/2034MML Dynamic Bond Fund FIXED INCOME PSA TREASURY PTE LTD 208,454 200,000 0.06 2.125 9/5/2029MML Dynamic Bond Fund FIXED INCOME HC GROUP HOLDINGS II INC 152,936 154,611 0.04 0 8/6/2026MML Dynamic Bond Fund FIXED INCOME BAT CAPITAL CORP 740,024 695,000 0.20 3.462 9/6/2029MML Dynamic Bond Fund FIXED INCOME GEORGIA POWER CO 406,153 385,000 0.11 2.2 9/15/2024MML Dynamic Bond Fund FIXED INCOME ANTHEM INC 228,647 215,000 0.06 2.375 1/15/2025MML Dynamic Bond Fund FIXED INCOME SIMON PROPERTY GROUP LP 24,763 25,000 0.01 2.45 9/13/2029MML Dynamic Bond Fund FIXED INCOME UBER TECHNOLOGIES INC 96,300 90,000 0.03 7.5 9/15/2027MML Dynamic Bond Fund FIXED INCOME B+G FOODS INC 52,166 50,000 0.01 5.25 9/15/2027MML Dynamic Bond Fund FIXED INCOME SEDGWICK CLAIMS MGMT SVCS INC 34,006 34,563 0.01 0 9/3/2026MML Dynamic Bond Fund FIXED INCOME PERFORMANCE FOOD GROUP I 118,450 115,000 0.03 5.5 10/15/2027MML Dynamic Bond Fund FIXED INCOME CCO HLDGS LLC/CAP CORP 111,169 105,000 0.03 4.75 3/1/2030MML Dynamic Bond Fund FIXED INCOME PAMPA ENERGIA SA 117,057 150,000 0.03 9.125 4/15/2029MML Dynamic Bond Fund FIXED INCOME POSCO 209,352 200,000 0.06 2.75 7/15/2024MML Dynamic Bond Fund FIXED INCOME SUNOCO LP/FINANCE CORP 92,475 90,000 0.03 6 4/15/2027MML Dynamic Bond Fund FIXED INCOME SCRIPPS ESCROW INC 77,200 80,000 0.02 5.875 7/15/2027MML Dynamic Bond Fund FIXED INCOME VERICREST OPPORTUNITY LOAN TRA 854,438 848,125 0.23 3.9672 2/25/2049MML Dynamic Bond Fund FIXED INCOME BROOKLYN UNION GAS CO 430,548 335,000 0.12 4.487 3/4/2049MML Dynamic Bond Fund FIXED INCOME MERCK + CO INC 448,553 385,000 0.12 3.4 3/7/2029

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Dynamic Bond Fund FIXED INCOME STATE OF QATAR 430,632 400,000 0.12 3.375 3/14/2024MML Dynamic Bond Fund FIXED INCOME FRONTIER COMMUNICATIONS 104,637 105,000 0.03 8 4/1/2027MML Dynamic Bond Fund FIXED INCOME REGIONALCARE HOSPITAL PARTNERS 106,700 110,000 0.03 0 11/16/2025MML Dynamic Bond Fund FIXED INCOME GETTY IMAGES, INC. 31,956 34,361 0.01 0 2/19/2026MML Dynamic Bond Fund FIXED INCOME CLARIOS GLOBAL LP/US FIN 120,583 115,000 0.03 6.25 5/15/2026MML Dynamic Bond Fund FIXED INCOME TARGET CORP 470,893 405,000 0.13 3.375 4/15/2029MML Dynamic Bond Fund FIXED INCOME AES GENER SA 408,914 400,000 0.11 7.125 3/26/2079MML Dynamic Bond Fund FIXED INCOME NUTRIEN LTD 315,176 265,000 0.09 4.2 4/1/2029MML Dynamic Bond Fund FIXED INCOME US TREASURY N/B 3,690,741 3,340,000 1.01 2.25 3/31/2026MML Dynamic Bond Fund FIXED INCOME NEWARK BSL CLO 2 LTD. 493,041 500,000 0.13 3.8945 7/25/2030MML Dynamic Bond Fund FIXED INCOME STAPLES INC 106,278 115,000 0.03 7.5 4/15/2026MML Dynamic Bond Fund FIXED INCOME VEDANTA RESOURCES 149,100 200,000 0.04 9.25 4/23/2026MML Dynamic Bond Fund FIXED INCOME GFL ENVIRONMENTAL INC 55,335 51,000 0.02 8.5 5/1/2027MML Dynamic Bond Fund FIXED INCOME TEXTAINER MARINE CONTAINERS LI 443,333 443,333 0.12 3.96 4/20/2044MML Dynamic Bond Fund FIXED INCOME GOGO INTERMEDIATE/FINANC 80,175 75,000 0.02 9.875 5/1/2024MML Dynamic Bond Fund FIXED INCOME CALPINE CORP 303,581 312,300 0.08 0 4/5/2026MML Dynamic Bond Fund FIXED INCOME MARATHON PETROLEUM CORP 417,364 360,000 0.11 5.125 12/15/2026MML Dynamic Bond Fund FIXED INCOME WELLS FARGO COMMERCIAL MORTGAG 430,352 409,000 0.12 4.192 5/15/2052MML Dynamic Bond Fund FIXED INCOME WELLS FARGO COMMERCIAL MORTGAG 375,588 409,000 0.10 4.345 5/15/2052MML Dynamic Bond Fund FIXED INCOME IHEARTCOMMUNICATIONS INC 24,625 25,000 0.01 8.375 5/1/2027MML Dynamic Bond Fund FIXED INCOME GTCR AP FINANCE INC 100,225 95,000 0.03 8 5/15/2027MML Dynamic Bond Fund FIXED INCOME TWIN RIVER WORLDWIDE HLD 109,436 110,000 0.03 6.75 6/1/2027MML Dynamic Bond Fund FIXED INCOME CLI FUNDING LLC 441,591 433,790 0.12 3.71 5/18/2044MML Dynamic Bond Fund FIXED INCOME ONEMAIN FINANCE CORP 133,176 120,000 0.04 6.625 1/15/2028MML Dynamic Bond Fund FIXED INCOME ULTIMATE SOFTWARE GROUP INC 137,732 139,083 0.04 0 5/4/2026MML Dynamic Bond Fund FIXED INCOME UFC HOLDINGS, LLC 194,040 197,747 0.05 0 4/29/2026MML Dynamic Bond Fund FIXED INCOME PANTHER BF AGGREGATOR 2 LP 38,523 39,600 0.01 0 4/30/2026MML Dynamic Bond Fund FIXED INCOME JBS USA LUX SA 246,481 253,712 0.07 0 5/1/2026MML Dynamic Bond Fund FIXED INCOME ALTICE FRANCE SA 149,775 154,494 0.04 0 8/14/2026MML Dynamic Bond Fund FIXED INCOME WESTCOTT PARK CLO LTD 488,334 500,000 0.13 3.52175 7/20/2028MML Dynamic Bond Fund FIXED INCOME PRIME SECSRVC BRW/FINANC 105,517 110,000 0.03 3.375 8/31/2027MML Dynamic Bond Fund FIXED INCOME US TREASURY N/B 2,404,343 2,450,000 0.66 1.375 8/15/2050MML Dynamic Bond Fund FIXED INCOME GO DADDY OPERATING COMPANY LLC 83,428 84,788 0.02 0 8/10/2027MML Dynamic Bond Fund FIXED INCOME AES PANAMA GENERATION HL 205,250 200,000 0.06 4.375 5/31/2030MML Dynamic Bond Fund FIXED INCOME IRON MOUNTAIN INC 60,564 60,000 0.02 4.5 2/15/2031MML Dynamic Bond Fund FIXED INCOME WYNDHAM HOTELS + RESORTS 72,750 75,000 0.02 4.375 8/15/2028MML Dynamic Bond Fund FIXED INCOME ASPLUNDH TREE EXPERT LLC 69,869 70,000 0.02 0 9/7/2027MML Dynamic Bond Fund FIXED INCOME CREDITO REAL SAB DE CV 151,002 200,000 0.04 9.125 12/31/2099MML Dynamic Bond Fund FIXED INCOME SYNCHRONY FINANCIAL 451,971 420,000 0.12 3.95 12/1/2027MML Dynamic Bond Fund FIXED INCOME EQUINOX HLDGS INC 33,677 44,087 0.01 0 3/8/2024MML Dynamic Bond Fund FIXED INCOME EXPEDIA GROUP INC 277,707 275,000 0.08 3.8 2/15/2028MML Dynamic Bond Fund FIXED INCOME COSMOPOLITAN HOTEL TRUST 255,261 273,000 0.07 3.15238 11/15/2036MML Dynamic Bond Fund FIXED INCOME COSMOPOLITAN HOTEL TRUST 295,218 320,000 0.08 3.89358 11/15/2036MML Dynamic Bond Fund FIXED INCOME COSMOPOLITAN HOTEL TRUST 287,301 298,000 0.08 1.55238 11/15/2036MML Dynamic Bond Fund FIXED INCOME AMERICAN TOWER CORP 527,199 470,000 0.14 3.6 1/15/2028MML Dynamic Bond Fund FIXED INCOME BANK OF MONTREAL 334,376 300,000 0.09 3.803 12/15/2032MML Dynamic Bond Fund FIXED INCOME PACKAGING CORP OF AMERIC 240,150 215,000 0.07 3.4 12/15/2027MML Dynamic Bond Fund FIXED INCOME TRIUMPH GROUP INC 35,269 55,000 0.01 7.75 8/15/2025

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Dynamic Bond Fund FIXED INCOME CAESARS RESORT COLLECTION LLC 147,986 158,372 0.04 0 12/23/2024MML Dynamic Bond Fund FIXED INCOME GENERAL MOTORS FINL CO 568,774 575,000 0.16 1.29375 1/5/2023MML Dynamic Bond Fund FIXED INCOME UNITED MEXICAN STATES 575,933 535,000 0.16 3.75 1/11/2028MML Dynamic Bond Fund FIXED INCOME SUMITOMO MITSUI FINL GRP 718,185 715,000 0.20 1.01288 1/17/2023MML Dynamic Bond Fund FIXED INCOME IRB HOLDING CORP 120,000 120,000 0.03 6.75 2/15/2026MML Dynamic Bond Fund FIXED INCOME OWENS CORNING 194,897 175,000 0.05 4.4 1/30/2048MML Dynamic Bond Fund FIXED INCOME AASET 2018 1 TRUST 474,600 513,749 0.13 3.844 1/16/2038MML Dynamic Bond Fund FIXED INCOME MITCHELL INTL INC 141,987 148,855 0.04 0 11/29/2024MML Dynamic Bond Fund FIXED INCOME CAPITAL ONE FINANCIAL CO 140,067 140,000 0.04 0.98825 1/30/2023MML Dynamic Bond Fund FIXED INCOME INVITATION HOMES TRUST 749,108 750,000 0.21 1.6005 3/17/2037MML Dynamic Bond Fund FIXED INCOME BANK 308,281 310,000 0.08 4.163 2/15/2061MML Dynamic Bond Fund FIXED INCOME INDIGO NATURAL RES LLC 48,664 50,000 0.01 6.875 2/15/2026MML Dynamic Bond Fund FIXED INCOME JBS USA LUX/JBS USA FIN 137,015 126,000 0.04 6.75 2/15/2028MML Dynamic Bond Fund FIXED INCOME FREDDIE MAC 3,207,139 3,089,572 0.88 3 8/15/2042MML Dynamic Bond Fund FIXED INCOME GRAN TIERRA ENERGY INTL 136,004 400,000 0.04 6.25 2/15/2025MML Dynamic Bond Fund FIXED INCOME US TREASURY N/B 2,753,502 2,480,000 0.75 2.75 2/28/2025MML Dynamic Bond Fund FIXED INCOME AMGH HLDG CORP 59,327 59,541 0.02 0 4/28/2022MML Dynamic Bond Fund FIXED INCOME ASURION LLC 102,793 104,446 0.03 0 11/3/2023MML Dynamic Bond Fund FIXED INCOME GREENEDEN US HLDGS II LLC 152,888 153,399 0.04 0 12/1/2023MML Dynamic Bond Fund FIXED INCOME CVS HEALTH CORP 229,754 180,000 0.06 5.05 3/25/2048MML Dynamic Bond Fund FIXED INCOME UBER TECHNOLOGIES INC 113,035 114,075 0.03 0 4/4/2025MML Dynamic Bond Fund FIXED INCOME ANGLO AMERICAN CAPITAL 440,421 385,000 0.12 4.5 3/15/2028MML Dynamic Bond Fund FIXED INCOME TEAM HEALTH INC DEL 20,742 24,807 0.01 0 2/6/2024MML Dynamic Bond Fund FIXED INCOME SOCIAL PROFESSIONAL LOAN PROGR 480,640 500,000 0.13 3.83 8/25/2047MML Dynamic Bond Fund FIXED INCOME PERU LNG SRL 191,485 250,000 0.05 5.375 3/22/2030MML Dynamic Bond Fund FIXED INCOME PEAK 10 HLDG CORP 25,388 29,770 0.01 0 8/1/2024MML Dynamic Bond Fund FIXED INCOME MACQUARIE GROUP LTD 300,166 280,000 0.08 4.15 3/27/2024MML Dynamic Bond Fund FIXED INCOME ANHEUSER BUSCH INBEV WOR 524,676 440,000 0.14 4.6 4/15/2048MML Dynamic Bond Fund FIXED INCOME FANNIE MAE 2,153,496 2,299,558 0.59 0.01 4/25/2048MML Dynamic Bond Fund FIXED INCOME BLUEMOUNTAIN CLO LTD 863,524 1,000,000 0.24 2.87175 4/20/2031MML Dynamic Bond Fund FIXED INCOME FILTRATION GROUP CORP 197,138 201,385 0.05 0 3/29/2025MML Dynamic Bond Fund FIXED INCOME DOLLAR TREE INC 423,063 375,000 0.12 4 5/15/2025MML Dynamic Bond Fund FIXED INCOME STATE OF QATAR 214,600 200,000 0.06 3.875 4/23/2023MML Dynamic Bond Fund FIXED INCOME CREDIT AGRICOLE LONDON 573,323 535,000 0.16 3.75 4/24/2023MML Dynamic Bond Fund FIXED INCOME SYNGENTA FINANCE NV 214,394 200,000 0.06 5.676 4/24/2048MML Dynamic Bond Fund FIXED INCOME PRUDENTIAL FINANCIAL INC 205,811 185,000 0.06 3.905 12/7/2047MML Dynamic Bond Fund FIXED INCOME STATE GRID OVERSEAS INV 213,872 200,000 0.06 3.75 5/2/2023MML Dynamic Bond Fund FIXED INCOME CNOOC FINANCE 2015 US 394,690 370,000 0.11 3.75 5/2/2023MML Dynamic Bond Fund FIXED INCOME BARCLAYS PLC 426,158 425,000 0.12 1.66013 5/16/2024MML Dynamic Bond Fund FIXED INCOME GOLDMAN SACHS GROUP INC 570,492 565,000 0.16 1.45013 5/15/2026MML Dynamic Bond Fund FIXED INCOME PSEG POWER LLC 365,797 340,000 0.10 3.85 6/1/2023MML Dynamic Bond Fund FIXED INCOME SOLENIS INTL L P 72,568 74,429 0.02 0 6/26/2025MML Dynamic Bond Fund FIXED INCOME CHENIERE ENERGY PARTNERS 98,800 95,000 0.03 5.625 10/1/2026MML Dynamic Bond Fund FIXED INCOME DOCUFORMAS SA 147,500 200,000 0.04 10.25 7/24/2024MML Dynamic Bond Fund FIXED INCOME DIAMOND SPORTS GR/DIAMON 45,988 65,000 0.01 5.375 8/15/2026MML Dynamic Bond Fund FIXED INCOME NEXSTAR BROADCASTING INC 191,584 196,160 0.05 0 9/18/2026MML Dynamic Bond Fund FIXED INCOME AIR METHODS CORP 47,610 54,577 0.01 0 4/22/2024MML Dynamic Bond Fund FIXED INCOME THUNDERBOLT AIRCRAFT LEASE LIM 814,627 864,559 0.22 4.212 5/17/2032

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Dynamic Bond Fund FIXED INCOME GILBERT PARK CLO LTD 482,499 500,000 0.13 3.225 10/15/2030MML Dynamic Bond Fund FIXED INCOME CITIGROUP COMMERCIAL MORTGAGE 363,451 340,000 0.10 4.096 10/12/2050MML Dynamic Bond Fund FIXED INCOME MULTIBANK INC. 203,100 200,000 0.06 4.375 11/9/2022MML Dynamic Bond Fund FIXED INCOME COMMONWEALTH BANK AUST 615,965 505,000 0.17 4.316 1/10/2048MML Dynamic Bond Fund FIXED INCOME VANTAGE DATA CENTERS ISSUER, L 755,765 730,625 0.21 4.072 2/16/2043MML Dynamic Bond Fund FIXED INCOME GILEX HOLDING SARL 152,627 150,000 0.04 8.5 5/2/2023MML Dynamic Bond Fund FIXED INCOME GILEX HOLDING SARL 152,627 150,000 0.04 8.5 5/2/2023MML Dynamic Bond Fund FIXED INCOME CANACOL ENERGY LTD 205,502 200,000 0.06 7.25 5/3/2025MML Dynamic Bond Fund FIXED INCOME COLLEGE AVE STUDENT LOANS 359,355 362,972 0.10 1.34813 12/26/2047MML Dynamic Bond Fund FIXED INCOME EVERSOURCE ENERGY 247,713 250,000 0.07 1.65 8/15/2030MML Dynamic Bond Fund FIXED INCOME COMCAST CORP 326,910 330,000 0.09 1.5 2/15/2031MML Dynamic Bond Fund FIXED INCOME ALBERTSONS COS/SAFEWAY 72,797 75,000 0.02 3.5 3/15/2029MML Dynamic Bond Fund FIXED INCOME OCCIDENTAL PETROLEUM COR 55,350 60,000 0.02 6.625 9/1/2030MML Dynamic Bond Fund FIXED INCOME US TREASURY N/B 3,097,308 3,150,000 0.85 1.125 8/15/2040MML Dynamic Bond Fund FIXED INCOME GFL ENVIRONMENTAL INC 100,553 100,000 0.03 3.75 8/1/2025MML Dynamic Bond Fund FIXED INCOME ROPER TECHNOLOGIES INC 510,275 510,000 0.14 1.75 2/15/2031MML Dynamic Bond Fund FIXED INCOME PIKE CORP 85,526 85,000 0.02 5.5 9/1/2028MML Dynamic Bond Fund FIXED INCOME RELIANCE INDUSTRIES LTD 526,801 500,000 0.14 5.4 2/14/2022MML Dynamic Bond Fund FIXED INCOME WELLS FARGO COMMERCIAL MORTGAG 357,379 2,238,651 0.10 2.2376 8/15/2053MML Dynamic Bond Fund FIXED INCOME ROYALTY PHARMA PLC 233,054 235,000 0.06 3.3 9/2/2040MML Dynamic Bond Fund FIXED INCOME ABU DHABI GOVT INT L 199,750 200,000 0.05 0.75 9/2/2023MML Dynamic Bond Fund FIXED INCOME US TREASURY N/B 7,143,821 7,150,000 1.96 0.125 9/15/2023MML Dynamic Bond Fund FIXED INCOME TEXTAINER MARINE CONTAINERS LI 499,917 500,000 0.14 2.1 9/20/2045MML Dynamic Bond Fund FIXED INCOME NUSTAR LOGISTICS LP 93,375 90,000 0.03 6.375 10/1/2030MML Dynamic Bond Fund FIXED INCOME YUM BRANDS INC 135,000 135,000 0.04 3.625 3/15/2031MML Dynamic Bond Fund FIXED INCOME BANCO LATINOAMERICANO SA 202,800 200,000 0.06 2.375 9/14/2025MML Dynamic Bond Fund FIXED INCOME TRANSOCEAN INC 14,767 36,000 0.00 11.5 1/30/2027MML Dynamic Bond Fund FIXED INCOME AVAYA INC 81,568 80,000 0.02 6.125 9/15/2028MML Dynamic Bond Fund FIXED INCOME RADIATE HOLDCO, LLC 132,469 135,000 0.04 0 9/25/2026MML Dynamic Bond Fund FIXED INCOME RADIATE HOLDCO / FINANCE 74,984 75,000 0.02 4.5 9/15/2026MML Dynamic Bond Fund FIXED INCOME TELESAT CANADA/TELESAT L 40,288 40,000 0.01 6.5 10/15/2027MML Dynamic Bond Fund FIXED INCOME PRIME SECURITY SVCS BRWR LLC 63,855 64,511 0.02 0 9/23/2026MML Dynamic Bond Fund FIXED INCOME WESTJET AIRLINES LTD 59,993 69,413 0.02 0 12/11/2026MML Dynamic Bond Fund FIXED INCOME AES GENER SA 201,750 200,000 0.06 6.35 10/7/2079MML Dynamic Bond Fund FIXED INCOME BFLD TRUST 427,509 491,000 0.12 2.39238 10/15/2034MML Dynamic Bond Fund FIXED INCOME ALLIANT HOLD / CO ISSUER 78,684 75,000 0.02 6.75 10/15/2027MML Dynamic Bond Fund FIXED INCOME MACH I 422,214 464,193 0.12 3.474 10/15/2039MML Dynamic Bond Fund FIXED INCOME CSC HOLDINGS, LLC 196,647 203,208 0.05 0 4/15/2027MML Dynamic Bond Fund FIXED INCOME VIRGIN MEDIA BRISTOL LLC 96,917 100,000 0.03 0 1/31/2028MML Dynamic Bond Fund FIXED INCOME CLEAR CHANNEL OUTDOOR HLDNGS I 8,987 9,900 0.00 0 8/21/2026MML Dynamic Bond Fund FIXED INCOME SUNRUN CALLISTO ISSUER LLC 772,420 737,161 0.21 3.61 2/1/2055MML Dynamic Bond Fund FIXED INCOME ALDEVRON LLC 109,429 109,475 0.03 0 10/12/2026MML Dynamic Bond Fund FIXED INCOME BUCKEYE PARTNERS, LP 68,257 69,650 0.02 0 11/1/2026MML Dynamic Bond Fund FIXED INCOME US TREASURY N/B 4,278,562 3,980,000 1.17 1.625 10/31/2026MML Dynamic Bond Fund FIXED INCOME WELLS FARGO COMMERCIAL MORTGAG 305,752 4,354,169 0.08 1.15401 10/15/2052MML Dynamic Bond Fund FIXED INCOME WELLS FARGO + COMPANY 123,498 115,000 0.03 2.879 10/30/2030MML Dynamic Bond Fund CASH EQUIVALENT TREASURY BILL 89,992 90,000 0.02 1.535 11/5/2020MML Dynamic Bond Fund FIXED INCOME ONEMAIN FINANCE CORP 57,200 55,000 0.02 5.375 11/15/2029

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Dynamic Bond Fund FIXED INCOME ALBERTSONS COS/SAFEWAY 97,203 95,000 0.03 4.625 1/15/2027MML Dynamic Bond Fund FIXED INCOME GRAHAM PACKAGING COMPANY INC. 79,434 80,000 0.02 0 8/4/2027MML Dynamic Bond Fund FIXED INCOME BOYD GAMING CORP 147,188 150,000 0.04 4.75 12/1/2027MML Dynamic Bond Fund FIXED INCOME NFP CORP 70,866 70,000 0.02 6.875 8/15/2028MML Dynamic Bond Fund FIXED INCOME BROADCOM INC 373,679 345,000 0.10 3.15 11/15/2025MML Dynamic Bond Fund FIXED INCOME GROUP 1 AUTOMOTIVE INC 24,563 25,000 0.01 4 8/15/2028MML Dynamic Bond Fund FIXED INCOME NATIONSTAR MTG HLD INC 74,906 75,000 0.02 5.5 8/15/2028MML Dynamic Bond Fund FIXED INCOME APACHE CORP 38,125 40,000 0.01 4.625 11/15/2025MML Dynamic Bond Fund FIXED INCOME BANCO NACIONAL DE PANAMA 197,900 200,000 0.05 2.5 8/11/2030MML Dynamic Bond Fund FIXED INCOME US TREASURY N/B 4,348,315 4,370,000 1.19 0.625 8/15/2030MML Dynamic Bond Fund FIXED INCOME TEMPO ACQUISITION LLC 195,891 202,275 0.05 0 11/2/2026MML Dynamic Bond Fund FIXED INCOME ACTIVISION BLIZZARD 97,754 100,000 0.03 1.35 9/15/2030MML Dynamic Bond Fund FIXED INCOME FNMA POOL MA4158 4,137,663 4,000,000 1.13 2 10/1/2050MML Dynamic Bond Fund FIXED INCOME PIONEER NATURAL RESOURCE 229,791 245,000 0.06 1.9 8/15/2030MML Dynamic Bond Fund FIXED INCOME WESTERN MIDSTREAM OPERAT 71,438 75,000 0.02 4.1 2/1/2025MML Dynamic Bond Fund FIXED INCOME NOVELIS CORP 49,111 50,000 0.01 4.75 1/30/2030MML Dynamic Bond Fund FIXED INCOME POSCO 204,934 200,000 0.06 2.375 1/17/2023MML Dynamic Bond Fund FIXED INCOME EQT CORP 66,507 60,000 0.02 7.875 2/1/2025MML Dynamic Bond Fund FIXED INCOME MEDCO BELL PTE LTD 172,000 200,000 0.05 6.375 1/30/2027MML Dynamic Bond Fund FIXED INCOME CENTURYLINK INC 86,352 85,000 0.02 4 2/15/2027MML Dynamic Bond Fund FIXED INCOME ORTHO CLINICAL INC/SA 83,200 80,000 0.02 7.25 2/1/2028MML Dynamic Bond Fund FIXED INCOME MEG ENERGY CORP 139,009 155,000 0.04 7.125 2/1/2027MML Dynamic Bond Fund FIXED INCOME GENTIVA HEALTH SERVICES INC 194,249 198,592 0.05 0 7/2/2025MML Dynamic Bond Fund FIXED INCOME VICI PROPERTIES / NOTE 14,749 15,000 0.00 3.75 2/15/2027MML Dynamic Bond Fund FIXED INCOME VICI PROPERTIES / NOTE 59,025 60,000 0.02 4.125 8/15/2030MML Dynamic Bond Fund FIXED INCOME BANCOLOMBIA SA 200,324 200,000 0.05 3 1/29/2025MML Dynamic Bond Fund FIXED INCOME NAVIENT CORP 56,342 60,000 0.02 5 3/15/2027MML Dynamic Bond Fund FIXED INCOME RADIOLOGY PARTNERS INC 98,800 95,000 0.03 9.25 2/1/2028MML Dynamic Bond Fund FIXED INCOME TRANSDIGM INC 160,862 170,450 0.04 0 12/9/2025MML Dynamic Bond Fund FIXED INCOME VERICREST OPPORTUNITY LOAN TRA 562,728 562,728 0.15 2.9814 2/25/2050MML Dynamic Bond Fund FIXED INCOME FRONERI INTERNATIONAL PLC 229,568 239,400 0.06 0 1/31/2027MML Dynamic Bond Fund FIXED INCOME ARCONIC CORP 112,956 110,000 0.03 6.125 2/15/2028MML Dynamic Bond Fund FIXED INCOME ASBURY AUTOMOTIVE GROUP 16,100 16,000 0.00 4.5 3/1/2028MML Dynamic Bond Fund FIXED INCOME IRB HOLDING CORP. 146,140 153,317 0.04 0 2/5/2025MML Dynamic Bond Fund FIXED INCOME HYUNDAI CAPITAL AMERICA 473,708 460,000 0.13 2.65 2/10/2025MML Dynamic Bond Fund FIXED INCOME ASBURY AUTOMOTIVE GROUP 16,120 16,000 0.00 4.75 3/1/2030MML Dynamic Bond Fund FIXED INCOME OP SERVICIOS MEGA 184,000 200,000 0.05 8.25 2/11/2025MML Dynamic Bond Fund FIXED INCOME BUILDERS FIRSTSOURCE INC 82,800 80,000 0.02 5 3/1/2030MML Dynamic Bond Fund FIXED INCOME SYSCO CORPORATION 356,555 380,000 0.10 3.3 2/15/2050MML Dynamic Bond Fund FIXED INCOME ACRISURE, LLC 119,256 123,742 0.03 0 2/15/2027MML Dynamic Bond Fund FIXED INCOME CASTLE US HOLDING CORPORATION 152,818 159,333 0.04 0 1/29/2027MML Dynamic Bond Fund FIXED INCOME POST HOLDINGS INC 113,163 110,000 0.03 4.625 4/15/2030MML Dynamic Bond Fund FIXED INCOME CENTURYLINK INC 214,718 223,872 0.06 0 3/15/2027MML Dynamic Bond Fund FIXED INCOME LIFEPOINT HEALTH INC 90,113 90,000 0.02 4.375 2/15/2027MML Dynamic Bond Fund FIXED INCOME HYUNDAI CAPITAL AMERICA 4,974 5,000 0.00 1.8 10/15/2025MML Dynamic Bond Fund FIXED INCOME DELTA AIR LINES/SKYMILES 41,531 40,000 0.01 4.75 10/20/2028MML Dynamic Bond Fund FIXED INCOME AT+T INC 704,815 729,000 0.19 3.5 9/15/2053MML Dynamic Bond Fund FIXED INCOME US TREASURY N/B 7,951,826 7,960,000 2.18 0.25 9/30/2025

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Dynamic Bond Fund FIXED INCOME US TREASURY N/B 11,756,165 11,830,000 3.22 0.375 9/30/2027MML Dynamic Bond Fund FIXED INCOME BANK 390,221 380,000 0.11 2.14 3/15/2063MML Dynamic Bond Fund FIXED INCOME BENCHMARK MORTGAGE TRUST 390,859 380,000 0.11 2.148 9/15/2053MML Dynamic Bond Fund FIXED INCOME US TREASURY N/B 4,779,998 4,780,000 1.31 0.125 9/30/2022MML Dynamic Bond Fund FIXED INCOME VANTAGE DATA CENTERS LLC 375,172 375,000 0.10 1.992 9/15/2045MML Dynamic Bond Fund FIXED INCOME GCI LLC 91,126 90,000 0.02 4.75 10/15/2028MML Dynamic Bond Fund FIXED INCOME CENTENE CORP 61,212 60,000 0.02 3 10/15/2030MML Dynamic Bond Fund FIXED INCOME CAMELOT US ACQUISITION 1 CO. 119,350 120,000 0.03 0 10/30/2026MML Dynamic Bond Fund FIXED INCOME PENNYMAC FIN SVCS INC 75,938 75,000 0.02 5.375 10/15/2025MML Dynamic Bond Fund FIXED INCOME TEMASEK FINANCIAL I LTD 344,843 350,000 0.09 1 10/6/2030MML Dynamic Bond Fund CASH EQUIVALENT FIXED INC CLEARING CORP.REPO 9,556,271 9,556,271 2.62 0 10/1/2020MML Dynamic Bond Fund FIXED INCOME MONDELEZ INTERNATIONAL 239,563 240,000 0.07 1.875 10/15/2032MML Dynamic Bond Fund FIXED INCOME MILANO ACQUISITION CORP 123,438 125,000 0.03 0 10/1/2027MML Dynamic Bond Fund FIXED INCOME MORGAN STANLEY CAPITAL INC 2,683,196 5,876,761 0.73 0.29813 9/25/2036MML Dynamic Bond Fund FIXED INCOME HARBORVIEW MORTGAGE LOAN TRUST 884,717 977,857 0.24 0.32625 12/19/2036MML Dynamic Bond Fund FIXED INCOME INTEROCEANICA IV FINANCE 658,652 712,411 0.18 0.01 11/30/2025MML Dynamic Bond Fund FIXED INCOME CITIGROUP MORTGAGE LOAN TRUST 1,142,688 1,227,391 0.31 3.96871 4/25/2037MML Dynamic Bond Fund FIXED INCOME MERRILL LYNCH MORTGAGE INVESTO 1,861,927 1,940,758 0.51 0.29813 8/25/2037MML Dynamic Bond Fund FIXED INCOME WELLS FARGO COMMERCIAL MORTGAG 89,530 169,000 0.02 3.938 8/15/2050MML Dynamic Bond Fund FIXED INCOME FNMA POOL AX2501 1,597,841 1,456,098 0.44 4 10/1/2044MML Dynamic Bond Fund FIXED INCOME JPMBB COMMERCIAL MORTGAGE SECU 546,907 704,000 0.15 3.944734 2/15/2048MML Dynamic Bond Fund FIXED INCOME COMM MORTGAGE TRUST 461,630 470,000 0.13 4.791023 10/10/2048MML Dynamic Bond Fund FIXED INCOME CSAIL COMMERCIAL MORTGAGE TRUS 452,455 427,000 0.12 4.709055 11/15/2048MML Dynamic Bond Fund FIXED INCOME WELLS FARGO COMMERCIAL MORTGAG 433,866 421,000 0.12 4.819921 12/15/2048MML Dynamic Bond Fund FIXED INCOME LONG BEACH MORTGAGE LOAN TRUST 2,088,384 3,195,147 0.57 0.30313 8/25/2036MML Dynamic Bond Fund FIXED INCOME CSAIL COMMERCIAL MORTGAGE TRUS 393,993 378,000 0.11 5.088355 1/15/2049MML Dynamic Bond Fund FIXED INCOME CSAIL COMMERCIAL MORTGAGE TRUS 323,976 298,000 0.09 3.9239 1/15/2049MML Dynamic Bond Fund FIXED INCOME SG COMMERCIAL MORTGAGE SECURIT 257,441 3,822,488 0.07 2.124759 10/10/2048MML Dynamic Bond Fund FIXED INCOME TRANSELEC SA 272,875 250,000 0.07 3.875 1/12/2029MML Dynamic Bond Fund FIXED INCOME ALIXPARTNERS LLP 217,100 222,845 0.06 0 4/4/2024MML Dynamic Bond Fund FIXED INCOME NATIONAL RETAIL PROP INC 114,049 115,000 0.03 2.5 4/15/2030MML Dynamic Bond Fund FIXED INCOME HALLIBURTON CO 123,172 125,000 0.03 2.92 3/1/2030MML Dynamic Bond Fund FIXED INCOME MATTAMY GROUP CORP 121,512 120,000 0.03 4.625 3/1/2030MML Dynamic Bond Fund FIXED INCOME ZAYO GROUP HOLDINGS INC 51,610 50,000 0.01 6.125 3/1/2028MML Dynamic Bond Fund FIXED INCOME ZAYO GROUP HOLDINGS INC 88,580 90,000 0.02 4 3/1/2027MML Dynamic Bond Fund FIXED INCOME ZAYO GROUP HOLDINGS INC 221,781 228,850 0.06 0 3/9/2027MML Dynamic Bond Fund FIXED INCOME VS BUYER LLC 146,438 149,300 0.04 0 2/28/2027MML Dynamic Bond Fund FIXED INCOME SURF HOLDINGS, LLC 126,595 129,675 0.03 0 3/5/2027MML Dynamic Bond Fund FIXED INCOME TIBCO SOFTWARE INC 126,235 129,638 0.03 0 6/30/2026MML Dynamic Bond Fund FIXED INCOME EXXON MOBIL CORPORATION 232,471 190,000 0.06 4.227 3/19/2040MML Dynamic Bond Fund FIXED INCOME NORTHROP GRUMMAN CORP 336,052 250,000 0.09 5.15 5/1/2040MML Dynamic Bond Fund FIXED INCOME COMCAST CORP 225,003 195,000 0.06 3.4 4/1/2030MML Dynamic Bond Fund FIXED INCOME MCDONALD S CORP 239,049 205,000 0.07 3.6 7/1/2030MML Dynamic Bond Fund FIXED INCOME ORACLE CORP 312,837 265,000 0.09 3.85 4/1/2060MML Dynamic Bond Fund FIXED INCOME BAIDU INC 219,919 200,000 0.06 3.425 4/7/2030MML Dynamic Bond Fund FIXED INCOME CARNIVAL CORP 33,619 30,000 0.01 11.5 4/1/2023MML Dynamic Bond Fund FIXED INCOME TRANSDIGM INC 16,313 15,000 0.00 8 12/15/2025MML Dynamic Bond Fund FIXED INCOME T MOBILE USA INC 241,406 220,000 0.07 3.5 4/15/2025

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Dynamic Bond Fund FIXED INCOME BURLINGTN NORTH SANTA FE 236,765 215,000 0.06 3.05 2/15/2051MML Dynamic Bond Fund FIXED INCOME LIFEPOINT HEALTH INC 57,888 55,000 0.02 6.75 4/15/2025MML Dynamic Bond Fund FIXED INCOME KEURIG DR PEPPER INC 161,073 140,000 0.04 3.8 5/1/2050MML Dynamic Bond Fund FIXED INCOME NISOURCE INC 125,342 110,000 0.03 3.6 5/1/2030MML Dynamic Bond Fund FIXED INCOME EOG RESOURCES INC 82,480 70,000 0.02 4.375 4/15/2030MML Dynamic Bond Fund FIXED INCOME ABU DHABI GOVT INT L 223,576 200,000 0.06 3.125 4/16/2030MML Dynamic Bond Fund FIXED INCOME ESSENTIAL UTILITIES INC 235,398 220,000 0.06 2.704 4/15/2030MML Dynamic Bond Fund FIXED INCOME MOSAIC SOLAR LOANS LLC 492,826 500,000 0.13 2.21 8/20/2046MML Dynamic Bond Fund FIXED INCOME SOPHIA LP 148,913 150,000 0.04 0 10/7/2027MML Dynamic Bond Fund FIXED INCOME STRUCTURED ADJUSTABLE RATE MOR 854,273 958,988 0.23 3.199738 10/25/2037MML Dynamic Bond Fund FIXED INCOME BANCO RESERVAS REP DOMIN 205,500 200,000 0.06 7 2/1/2023MML Dynamic Bond Fund FIXED INCOME UBS COMMERCIAL MORTGAGE TRUST 339,192 328,000 0.09 4.036 6/15/2050MML Dynamic Bond Fund FIXED INCOME UBS COMMERCIAL MORTGAGE TRUST 356,758 340,000 0.10 4.1539 12/15/2050MML Dynamic Bond Fund FIXED INCOME CARRIER GLOBAL CORP 324,794 310,000 0.09 3.377 4/5/2040MML Dynamic Bond Fund FIXED INCOME UNITED OVERSEAS BANK LTD 203,548 200,000 0.06 2.88 3/8/2027MML Dynamic Bond Fund FIXED INCOME HSBC HOLDINGS PLC 827,287 835,000 0.23 1.62913 9/12/2026MML Dynamic Bond Fund FIXED INCOME GS MORTGAGE SECURITIES TRUST 298,278 318,000 0.08 2.027029 6/15/2036MML Dynamic Bond Fund FIXED INCOME EW SCRIPPS COMPANY THE 298,703 307,051 0.08 0 5/1/2026MML Dynamic Bond Fund FIXED INCOME CSAIL COMMERCIAL MORTGAGE TRUS 317,433 332,000 0.09 3.73489 3/15/2053MML Dynamic Bond Fund FIXED INCOME KOREA EAST WEST POWER CO 206,656 200,000 0.06 1.75 5/6/2025MML Dynamic Bond Fund FIXED INCOME HEALTH CARE SERVICE CORP 51,876 50,000 0.01 3.2 6/1/2050MML Dynamic Bond Fund FIXED INCOME BRASKEM NETHERLANDS 201,802 200,000 0.06 8.5 1/23/2081MML Dynamic Bond Fund FIXED INCOME SCIENTIFIC GAMES INTERNA 76,125 75,000 0.02 7.25 11/15/2029MML Dynamic Bond Fund FIXED INCOME TARGA RESOURCES PARTNERS 100,105 100,000 0.03 5.5 3/1/2030MML Dynamic Bond Fund FIXED INCOME DIAMONDBACK ENERGY INC 59,738 59,000 0.02 2.875 12/1/2024MML Dynamic Bond Fund FIXED INCOME GATES GLOBAL/GATES CORP 67,001 65,000 0.02 6.25 1/15/2026MML Dynamic Bond Fund FIXED INCOME LEVEL 3 FINANCING INC 241,953 250,000 0.07 0 3/1/2027MML Dynamic Bond Fund FIXED INCOME GENESEE + WYOMING INC NEW - - - 0 12/30/2026MML Dynamic Bond Fund FIXED INCOME FONTAINEBLEAU MIAMI BEACH TRUS 245,980 262,000 0.07 4.094969 12/10/2036MML Dynamic Bond Fund FIXED INCOME HESS MIDSTREAM OPERATION 109,793 110,000 0.03 5.125 6/15/2028MML Dynamic Bond Fund FIXED INCOME FREDDIE MAC 2,505,060 2,360,016 0.69 2.5 11/15/2040MML Dynamic Bond Fund FIXED INCOME FONTAINEBLEAU MIAMI BEACH TRUS 202,926 236,000 0.06 4.094969 12/10/2036MML Dynamic Bond Fund FIXED INCOME FREMF MORTGAGE TRUST 325,576 298,000 0.09 3.651937 12/25/2051MML Dynamic Bond Fund FIXED INCOME BX TRUST 2019 OC11 355,870 391,000 0.10 4.075457 12/9/2041MML Dynamic Bond Fund FIXED INCOME CENTURYLINK INC 107,876 105,000 0.03 5.125 12/15/2026MML Dynamic Bond Fund FIXED INCOME GFL ENVIRONMENTAL INC 129,075 125,000 0.04 5.125 12/15/2026MML Dynamic Bond Fund FIXED INCOME USA COM PART/USA COM FIN 183,450 185,000 0.05 6.875 9/1/2027MML Dynamic Bond Fund FIXED INCOME SOTERA HEALTH HOLDINGS LLC 168,304 169,150 0.05 0 12/11/2026MML Dynamic Bond Fund FIXED INCOME PLAYTIKA HOLDING CORP 44,407 44,423 0.01 0 12/10/2024MML Dynamic Bond Fund FIXED INCOME CALPINE CORP 103,500 100,000 0.03 5.125 3/15/2028MML Dynamic Bond Fund FIXED INCOME TERRIER MEDIA BUYER INC 57,998 59,550 0.02 0 12/17/2026MML Dynamic Bond Fund FIXED INCOME FNMA POOL BL5484 3,329,315 3,000,000 0.91 2.26 1/1/2030MML Dynamic Bond Fund FIXED INCOME BNP PARIBAS 418,261 390,000 0.11 3.052 1/13/2031MML Dynamic Bond Fund FIXED INCOME JD.COM INC 433,364 400,000 0.12 3.375 1/14/2030MML Dynamic Bond Fund FIXED INCOME WPX ENERGY INC 63,904 65,000 0.02 4.5 1/15/2030MML Dynamic Bond Fund FIXED INCOME AVOLON HOLDINGS FNDG LTD 347,931 390,000 0.10 3.25 2/15/2027MML Dynamic Bond Fund FIXED INCOME FREDDIE MAC 1,621,083 1,572,961 0.44 3 7/15/2046MML Dynamic Bond Fund FIXED INCOME UNIFIN FINANCIERA SA DE 409,500 600,000 0.11 8.875 12/31/2099

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Dynamic Bond Fund FIXED INCOME OAK HILL CREDIT PARTNERS 471,285 500,000 0.13 3.32175 10/20/2030MML Dynamic Bond Fund FIXED INCOME START LTD. 307,452 329,827 0.08 4.089 3/15/2044MML Dynamic Bond Fund FIXED INCOME INVITATION HOMES TRUST 1,145,681 1,145,000 0.31 1.4005 3/17/2037MML Dynamic Bond Fund FIXED INCOME BXMT LTD 306,554 312,000 0.08 1.0505 2/16/2037MML Dynamic Bond Fund FIXED INCOME THACHER PARK CLO 995,365 1,000,000 0.27 3.67175 10/20/2026MML Dynamic Bond Fund FIXED INCOME ASSUREDPARTNERS INC 235,098 242,459 0.06 0 2/12/2027MML Dynamic Bond Fund FIXED INCOME GRIFFON CORPORATION 177,451 170,000 0.05 5.75 3/1/2028MML Dynamic Bond Fund FIXED INCOME MICRON TECHNOLOGY INC 197,306 190,000 0.05 2.497 4/24/2023MML Dynamic Bond Fund FIXED INCOME GFL ENVIRONMENTAL INC 80,800 80,000 0.02 4.25 6/1/2025MML Dynamic Bond Fund FIXED INCOME CONSTELLATION BRANDS INC 26,993 25,000 0.01 2.875 5/1/2030MML Dynamic Bond Fund FIXED INCOME MGM RESORTS INTL 141,484 135,000 0.04 6.75 5/1/2025MML Dynamic Bond Fund FIXED INCOME DEERFIELD DAKOTA HOLDING LLC 108,925 109,725 0.03 0 4/9/2027MML Dynamic Bond Fund FIXED INCOME EXXON MOBIL CORPORATION 178,350 165,000 0.05 2.61 10/15/2030MML Dynamic Bond Fund FIXED INCOME BANK OF NOVA SCOTIA 222,661 217,000 0.06 1.625 5/1/2023MML Dynamic Bond Fund FIXED INCOME PETRONAS CAPITAL LTD 223,516 200,000 0.06 3.5 4/21/2030MML Dynamic Bond Fund FIXED INCOME JPMORGAN CHASE + CO 292,620 275,000 0.08 2.522 4/22/2031MML Dynamic Bond Fund FIXED INCOME SIX FLAGS THEME PARKS 191,475 180,000 0.05 7 7/1/2025MML Dynamic Bond Fund FIXED INCOME ILLUMINATE BUYER LLC 84,204 85,000 0.02 0 6/16/2027MML Dynamic Bond Fund FIXED INCOME CAESARS ENTERTAIN INC 109,751 105,000 0.03 6.25 7/1/2025MML Dynamic Bond Fund FIXED INCOME ULTIMATE SOFTWARE GRP INC THE 104,620 105,000 0.03 0 5/4/2026MML Dynamic Bond Fund FIXED INCOME CAESARS RESORT COLLECTION LLC 57,983 60,000 0.02 0 7/21/2025MML Dynamic Bond Fund FIXED INCOME VERTICAL US NEWCO INC 198,108 200,000 0.05 0 7/30/2027MML Dynamic Bond Fund FIXED INCOME DIGICEL GROUP 0.5 LTD 17,928 51,222 0.00 8 4/1/2025MML Dynamic Bond Fund FIXED INCOME DIGICEL GROUP 0.5 LTD 9,190 76,581 0.00 7 12/31/2099MML Dynamic Bond Fund FIXED INCOME PACIFIC GAS + ELECTRIC COMPANY 73,191 74,813 0.02 0 6/23/2025MML Dynamic Bond Fund FIXED INCOME JPMDB COMMERCIAL MORTGAGE SECU 339,965 327,000 0.09 3.850599 5/13/2053MML Dynamic Bond Fund FIXED INCOME CEDAR FAIR LP 72,000 75,000 0.02 5.25 7/15/2029MML Dynamic Bond Fund FIXED INCOME MILEAGE PLUS HLDINGS LLC 104,125 100,000 0.03 6.5 6/20/2027MML Dynamic Bond Fund FIXED INCOME OCCIDENTAL PETROLEUM COR 50,312 50,000 0.01 8 7/15/2025MML Dynamic Bond Fund FIXED INCOME BANCO DE CREDITO DEL PER 200,626 200,000 0.05 3.125 7/1/2030MML Dynamic Bond Fund FIXED INCOME FREDDIE MAC 3,454,575 3,238,429 0.95 3.5 7/15/2049MML Dynamic Bond Fund FIXED INCOME FED HM LN PC POOL RE6066 7,170,910 7,000,000 1.96 2 10/1/2050MML Dynamic Bond Fund FIXED INCOME CORNERSTONE ONDEMAND INC 89,756 90,000 0.02 0 4/22/2027MML Dynamic Bond Fund FIXED INCOME US FOODS INC 15,881 15,000 0.00 6.25 4/15/2025MML Dynamic Bond Fund FIXED INCOME ELI LILLY + CO 459,814 488,000 0.13 2.25 5/15/2050MML Dynamic Bond Fund FIXED INCOME TEXAS INSTRUMENTS INC 108,305 105,000 0.03 1.75 5/4/2030MML Dynamic Bond Fund FIXED INCOME SOUTHWEST AIRLINES CO 251,170 235,000 0.07 4.75 5/4/2023MML Dynamic Bond Fund FIXED INCOME MONDELEZ INTERNATIONAL 133,593 130,000 0.04 1.5 5/4/2025MML Dynamic Bond Fund FIXED INCOME LAM RESEARCH CORP 191,251 185,000 0.05 2.875 6/15/2050MML Dynamic Bond Fund FIXED INCOME CK HUTCHISON INTL 20 LTD 209,742 200,000 0.06 2.5 5/8/2030MML Dynamic Bond Fund FIXED INCOME NEXTERA ENERGY CAPITAL 776,646 750,000 0.21 2.25 6/1/2030MML Dynamic Bond Fund FIXED INCOME SINOPEC GRP DEV 2018 368,062 350,000 0.10 2.7 5/13/2030MML Dynamic Bond Fund FIXED INCOME WILLIAM CARTER 193,788 185,000 0.05 5.5 5/15/2025MML Dynamic Bond Fund FIXED INCOME BAUSCH HEALTH COS INC 174,855 170,000 0.05 6.25 2/15/2029MML Dynamic Bond Fund FIXED INCOME FNMA POOL BP5817 3,076,776 2,933,491 0.84 2.5 5/1/2050MML Dynamic Bond Fund FIXED INCOME VB S1 ISSUER LLC 520,490 500,000 0.14 3.031 6/15/2050MML Dynamic Bond Fund FIXED INCOME XILINX INC 230,954 220,000 0.06 2.375 6/1/2030MML Dynamic Bond Fund FIXED INCOME VIKING CRUISES LTD 34,725 30,000 0.01 13 5/15/2025

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Dynamic Bond Fund FIXED INCOME MEGLOBAL CANADA ULC 431,086 400,000 0.12 5 5/18/2025MML Dynamic Bond Fund FIXED INCOME ENTERGY CORP 118,919 110,000 0.03 2.8 6/15/2030MML Dynamic Bond Fund FIXED INCOME LIVE NATION ENTERTAINMEN 97,132 90,000 0.03 6.5 5/15/2027MML Dynamic Bond Fund FIXED INCOME T MOBILE USA INC 84,659 84,788 0.02 0 4/1/2027MML Dynamic Bond Fund FIXED INCOME IRB HOLDING CORP 63,975 60,000 0.02 7 6/15/2025MML Dynamic Bond Fund FIXED INCOME ARIZONA PUBLIC SERVICE 143,180 130,000 0.04 3.35 5/15/2050MML Dynamic Bond Fund CASH EQUIVALENT TREASURY BILL 1,679,747 1,680,000 0.46 0 11/27/2020MML Dynamic Bond Fund FIXED INCOME JAGUAR HL / PPDI 52,188 50,000 0.01 5 6/15/2028MML Dynamic Bond Fund FIXED INCOME CCL INDUSTRIES INC 176,118 165,000 0.05 3.05 6/1/2030MML Dynamic Bond Fund FIXED INCOME TENCENT HOLDINGS LTD 305,049 300,000 0.08 2.39 6/3/2030MML Dynamic Bond Fund FIXED INCOME EAST OHIO GAS CO/THE 248,548 245,000 0.07 3 6/15/2050MML Dynamic Bond Fund FIXED INCOME WPX ENERGY INC 62,700 60,000 0.02 5.875 6/15/2028MML Dynamic Bond Fund FIXED INCOME FIRSTENERGY CORP 58,682 60,000 0.02 2.25 9/1/2030MML Dynamic Bond Fund FIXED INCOME PTTEP TREASURY CENTER CO 206,464 200,000 0.06 2.587 6/10/2027MML Dynamic Bond Fund FIXED INCOME TRANSDIGM INC 96,105 100,000 0.03 5.5 11/15/2027MML Dynamic Bond Fund FIXED INCOME KOREA ELECTRIC POWER CO 201,028 200,000 0.06 1.125 6/15/2025MML Dynamic Bond Fund FIXED INCOME EQUINIX INC 131,214 130,000 0.04 1.8 7/15/2027MML Dynamic Bond Fund FIXED INCOME SIRIUS XM RADIO INC 142,625 140,000 0.04 4.125 7/1/2030MML Dynamic Bond Fund FIXED INCOME CSAIL COMMERCIAL MORTGAGE TRUS 319,500 3,778,722 0.09 1.24471 3/15/2053MML Dynamic Bond Fund FIXED INCOME REALOGY GROUP/CO ISSUER 36,663 35,000 0.01 7.625 6/15/2025MML Dynamic Bond Fund FIXED INCOME BWX TECHNOLOGIES INC 51,125 50,000 0.01 4.125 6/30/2028MML Dynamic Bond Fund FIXED INCOME PINNACLE WEST CAPITAL 233,655 230,000 0.06 1.3 6/15/2025MML Dynamic Bond Fund FIXED INCOME LEVEL 3 FINANCING INC 167,528 165,000 0.05 4.25 7/1/2028MML Dynamic Bond Fund FIXED INCOME INTELSAT JACKSON HOLDINGS SA 23,675 23,306 0.01 0 7/13/2022MML Dynamic Bond Fund FIXED INCOME MOSAIC SOLAR LOANS LLC 480,467 475,127 0.13 2.1 4/20/2046MML Dynamic Bond Fund FIXED INCOME SAUDI INTERNATIONAL BOND 267,001 250,000 0.07 2.9 10/22/2025MML Dynamic Bond Fund FIXED INCOME COSTCO WHOLESALE CORP 76,948 75,000 0.02 1.75 4/20/2032MML Dynamic Bond Fund FIXED INCOME REPUBLIC OF PERU 324,150 300,000 0.09 2.783 1/23/2031MML Dynamic Bond Fund FIXED INCOME HILTON DOMESTIC OPERATIN 21,075 20,000 0.01 5.75 5/1/2028MML Dynamic Bond Fund FIXED INCOME HILTON DOMESTIC OPERATIN 20,886 20,000 0.01 5.375 5/1/2025MML Dynamic Bond Fund FIXED INCOME REPUBLIC OF PERU 104,901 100,000 0.03 2.392 1/23/2026MML Dynamic Bond Fund FIXED INCOME FORD MOTOR COMPANY 74,523 65,000 0.02 9 4/22/2025MML Dynamic Bond Fund FIXED INCOME CAMPBELL SOUP CO 119,583 115,000 0.03 2.375 4/24/2030MML Dynamic Bond Fund FIXED INCOME SILGAN HOLDINGS INC 112,475 110,000 0.03 4.125 2/1/2028MML Dynamic Bond Fund FIXED INCOME BRISTOL MYERS SQUIBB CO 468,853 355,000 0.13 4.35 11/15/2047MML Dynamic Bond Fund FIXED INCOME RATTLER MIDSTREAM LP 55,413 55,000 0.02 5.625 7/15/2025MML Dynamic Bond Fund FIXED INCOME NONGHYUP BANK 201,926 200,000 0.06 1.25 7/20/2025MML Dynamic Bond Fund FIXED INCOME MITSUBISHI UFJ FIN GRP 441,087 435,000 0.12 1.412 7/17/2025MML Dynamic Bond Fund FIXED INCOME FREEPORT MCMORAN INC 105,145 100,000 0.03 4.625 8/1/2030MML Dynamic Bond Fund FIXED INCOME BENCHMARK MORTGAGE TRUST 378,361 378,000 0.10 4.139 7/15/2053MML Dynamic Bond Fund FIXED INCOME BY CROWN PARENT/BY BOND 50,906 50,000 0.01 4.25 1/31/2026MML Dynamic Bond Fund FIXED INCOME BENCHMARK MORTGAGE TRUST 376,399 354,000 0.10 3.772 7/15/2053MML Dynamic Bond Fund FIXED INCOME TECH DATA CORPORATION 105,184 105,000 0.03 0 6/30/2025MML Dynamic Bond Fund FIXED INCOME CALPINE CORP 39,925 40,000 0.01 4.625 2/1/2029MML Dynamic Bond Fund FIXED INCOME CENOVUS ENERGY INC 62,558 65,000 0.02 5.375 7/15/2025MML Dynamic Bond Fund FIXED INCOME WR GRACE + CO CONN 170,396 165,000 0.05 4.875 6/15/2027MML Dynamic Bond Fund FIXED INCOME MF1 LTD 320,995 318,000 0.09 3.00238 7/15/2035MML Dynamic Bond Fund FIXED INCOME HELIOS ISSUER, LLC 491,044 473,814 0.13 2.98 6/20/2047

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Dynamic Bond Fund FIXED INCOME EQM MIDSTREAM PARTNERS L 127,202 120,000 0.03 6.5 7/1/2027MML Dynamic Bond Fund FIXED INCOME CNPC GLOBAL CAPITAL 200,230 200,000 0.05 1.35 6/23/2025MML Dynamic Bond Fund FIXED INCOME SCHLUMBERGER INVESTMENT 111,049 110,000 0.03 2.65 6/26/2030MML Dynamic Bond Fund FIXED INCOME ENERGIZER HOLDINGS INC 113,839 110,000 0.03 4.75 6/15/2028MML Dynamic Bond Fund FIXED INCOME NETAPP INC 238,233 230,000 0.07 1.875 6/22/2025MML Dynamic Bond Fund FIXED INCOME UPJOHN INC 138,192 135,000 0.04 1.65 6/22/2025MML Dynamic Bond Fund FIXED INCOME CNPC GLOBAL CAPITAL 199,844 200,000 0.05 1.125 6/23/2023MML Dynamic Bond Fund FIXED INCOME PG+E CORP 43,650 45,000 0.01 5 7/1/2028MML Dynamic Bond Fund FIXED INCOME T MOBILE USA INC 517,305 500,000 0.14 2.55 2/15/2031MML Dynamic Bond Fund FIXED INCOME T MOBILE USA INC 50,386 50,000 0.01 1.5 2/15/2026MML Equity Rotation Fund EQUITY SEAGATE TECHNOLOGY 246,646 5,006 0.69 0MML Equity Rotation Fund EQUITY KINDER MORGAN INC 24,574 1,993 0.07 0MML Equity Rotation Fund EQUITY HCA HEALTHCARE INC 164,204 1,317 0.46 0MML Equity Rotation Fund EQUITY TE CONNECTIVITY LTD 81,906 838 0.23 0MML Equity Rotation Fund EQUITY HUNTINGTON INGALLS INDUSTRIE 34,625 246 0.10 0MML Equity Rotation Fund EQUITY CITIGROUP INC 633,717 14,700 1.77 0MML Equity Rotation Fund EQUITY MOSAIC CO/THE 37,052 2,028 0.10 0MML Equity Rotation Fund EQUITY RALPH LAUREN CORP 46,899 690 0.13 0MML Equity Rotation Fund EQUITY J2 GLOBAL INC 34,610 500 0.10 0MML Equity Rotation Fund EQUITY JAZZ PHARMACEUTICALS PLC 37,216 261 0.10 0MML Equity Rotation Fund EQUITY PHILLIPS 66 7,983 154 0.02 0MML Equity Rotation Fund EQUITY AERCAP HOLDINGS NV 50,380 2,000 0.14 0MML Equity Rotation Fund EQUITY AECOM 40,041 957 0.11 0MML Equity Rotation Fund EQUITY DISCOVER FINANCIAL SERVICES 23,112 400 0.06 0MML Equity Rotation Fund EQUITY CONCHO RESOURCES INC 16,986 385 0.05 0MML Equity Rotation Fund EQUITY VMWARE INC CLASS A 149,129 1,038 0.42 0MML Equity Rotation Fund EQUITY MSCI INC 271,153 760 0.76 0MML Equity Rotation Fund EQUITY YUM BRANDS INC 35,424 388 0.10 0MML Equity Rotation Fund EQUITY NETFLIX INC 43,503 87 0.12 0MML Equity Rotation Fund EQUITY JM SMUCKER CO/THE 57,760 500 0.16 0MML Equity Rotation Fund EQUITY SKYWORKS SOLUTIONS INC 130,950 900 0.37 0MML Equity Rotation Fund EQUITY CIMAREX ENERGY CO 11,922 490 0.03 0MML Equity Rotation Fund EQUITY COMCAST CORP CLASS A 400,427 8,656 1.12 0MML Equity Rotation Fund EQUITY CARNIVAL CORP 8,000 527 0.02 0MML Equity Rotation Fund EQUITY LKQ CORP 27,730 1,000 0.08 0MML Equity Rotation Fund EQUITY BIOGEN INC 62,410 220 0.17 0MML Equity Rotation Fund EQUITY MONOLITHIC POWER SYSTEMS INC 25,165 90 0.07 0MML Equity Rotation Fund EQUITY CELANESE CORP 197,708 1,840 0.55 0MML Equity Rotation Fund EQUITY MOLSON COORS BEVERAGE CO B 14,330 427 0.04 0MML Equity Rotation Fund EQUITY DEXCOM INC 53,590 130 0.15 0MML Equity Rotation Fund EQUITY AT+T INC 104,204 3,655 0.29 0MML Equity Rotation Fund EQUITY POOL CORP 200,724 600 0.56 0MML Equity Rotation Fund EQUITY MASTERCARD INC A 390,586 1,155 1.09 0MML Equity Rotation Fund EQUITY SPIRIT AEROSYSTEMS HOLD CL A 3,253 172 0.01 0MML Equity Rotation Fund EQUITY PARKER HANNIFIN CORP 14,771 73 0.04 0MML Equity Rotation Fund EQUITY DANAHER CORP 369,722 1,717 1.03 0MML Equity Rotation Fund EQUITY REPUBLIC SERVICES INC 70,386 754 0.20 0MML Equity Rotation Fund EQUITY SYNCHRONY FINANCIAL 141,318 5,400 0.39 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Equity Rotation Fund EQUITY KEYSIGHT TECHNOLOGIES IN 125,451 1,270 0.35 0MML Equity Rotation Fund EQUITY ANTHEM INC 88,098 328 0.25 0MML Equity Rotation Fund EQUITY WALGREENS BOOTS ALLIANCE INC 64,009 1,782 0.18 0MML Equity Rotation Fund EQUITY IRON MOUNTAIN INC 26,790 1,000 0.07 0MML Equity Rotation Fund EQUITY MEDTRONIC PLC 13,717 132 0.04 0MML Equity Rotation Fund EQUITY SOLAREDGE TECHNOLOGIES INC 30,986 130 0.09 0MML Equity Rotation Fund EQUITY SHOPIFY INC CLASS A 122,756 120 0.34 0MML Equity Rotation Fund EQUITY WESTROCK CO 281,394 8,100 0.79 0MML Equity Rotation Fund EQUITY RELX PLC SPON ADR 105,519 4,717 0.29 0MML Equity Rotation Fund EQUITY PAYPAL HOLDINGS INC 193,089 980 0.54 0MML Equity Rotation Fund EQUITY ALPHABET INC CL C 182,230 124 0.51 0MML Equity Rotation Fund EQUITY ALPHABET INC CL A 1,620,954 1,106 4.53 0MML Equity Rotation Fund EQUITY HP INC 15,249 803 0.04 0MML Equity Rotation Fund EQUITY S+P GLOBAL INC 538,736 1,494 1.51 0MML Equity Rotation Fund EQUITY COCA COLA EUROPEAN PARTNERS 34,890 899 0.10 0MML Equity Rotation Fund EQUITY IHS MARKIT LTD 16,016 204 0.04 0MML Equity Rotation Fund EQUITY TRADE DESK INC/THE CLASS A 36,315 70 0.10 0MML Equity Rotation Fund EQUITY HILTON WORLDWIDE HOLDINGS IN 20,733 243 0.06 0MML Equity Rotation Fund EQUITY SBA COMMUNICATIONS CORP 35,033 110 0.10 0MML Equity Rotation Fund EQUITY DXC TECHNOLOGY CO 179,946 10,081 0.50 0MML Equity Rotation Fund EQUITY NUTRIEN LTD 42,800 1,091 0.12 0MML Equity Rotation Fund EQUITY FACEBOOK INC CLASS A 136,188 520 0.38 0MML Equity Rotation Fund EQUITY PALO ALTO NETWORKS INC 59,230 242 0.17 0MML Equity Rotation Fund EQUITY ASML HOLDING NV NY REG SHS 299,109 810 0.84 0MML Equity Rotation Fund EQUITY EATON CORP PLC 121,722 1,193 0.34 0MML Equity Rotation Fund EQUITY ABBVIE INC 237,106 2,707 0.66 0MML Equity Rotation Fund EQUITY VEEVA SYSTEMS INC CLASS A 243,511 866 0.68 0MML Equity Rotation Fund EQUITY ALLEGION PLC 19,287 195 0.05 0MML Equity Rotation Fund EQUITY AMERICAN AIRLINES GROUP INC 11,454 932 0.03 0MML Equity Rotation Fund EQUITY PAYLOCITY HOLDING CORP 24,213 150 0.07 0MML Equity Rotation Fund EQUITY MICHAELS COS INC/THE 55,999 5,800 0.16 0MML Equity Rotation Fund EQUITY DOMTAR CORP 39,405 1,500 0.11 0MML Equity Rotation Fund EQUITY ACCENTURE PLC CL A 35,706 158 0.10 0MML Equity Rotation Fund EQUITY VERISK ANALYTICS INC 140,465 758 0.39 0MML Equity Rotation Fund EQUITY MERCK + CO. INC. 89,337 1,077 0.25 0MML Equity Rotation Fund EQUITY DOLLAR GENERAL CORP 54,501 260 0.15 0MML Equity Rotation Fund EQUITY FORTINET INC 113,098 960 0.32 0MML Equity Rotation Fund EQUITY CIT GROUP INC 10,626 600 0.03 0MML Equity Rotation Fund EQUITY PILGRIM S PRIDE CORP 7,423 496 0.02 0MML Equity Rotation Fund EQUITY BERKSHIRE HATHAWAY INC CL B 404,586 1,900 1.13 0MML Equity Rotation Fund EQUITY LYONDELLBASELL INDU CL A 10,785 153 0.03 0MML Equity Rotation Fund EQUITY CORELOGIC INC 13,534 200 0.04 0MML Equity Rotation Fund EQUITY GARMIN LTD 20,110 212 0.06 0MML Equity Rotation Fund EQUITY HORIZON THERAPEUTICS PLC 18,410 237 0.05 0MML Equity Rotation Fund EQUITY CROWDSTRIKE HOLDINGS INC A 30,210 220 0.08 0MML Equity Rotation Fund EQUITY BRISTOL MYERS SQUIBB CO 2,234 993 0.01 0MML Equity Rotation Fund EQUITY ARCONIC CORP 5,715 300 0.02 0MML Equity Rotation Fund EQUITY INGERSOLL RAND INC 14,952 420 0.04 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Equity Rotation Fund EQUITY TRANE TECHNOLOGIES PLC 57,715 476 0.16 0MML Equity Rotation Fund EQUITY CARRIER GLOBAL CORP 111,013 3,635 0.31 0MML Equity Rotation Fund EQUITY OTIS WORLDWIDE CORP 113,417 1,817 0.32 0MML Equity Rotation Fund EQUITY RAYTHEON TECHNOLOGIES CORP 36,538 635 0.10 0MML Equity Rotation Fund EQUITY OCCIDENTAL PETROLEUM CORP 192 64 0.00 0MML Equity Rotation Fund CASH EQUIVALENT FIXED INC CLEARING CORP.REPO 895,491 895,491 2.50 0 10/1/2020MML Equity Rotation Fund EQUITY INTL BUSINESS MACHINES CORP 151,601 1,246 0.42 0MML Equity Rotation Fund CASH US DOLLAR 217 217 0.00 0MML Equity Rotation Fund EQUITY ABBOTT LABORATORIES 147,138 1,352 0.41 0MML Equity Rotation Fund EQUITY BRISTOL MYERS SQUIBB CO 640,340 10,621 1.79 0MML Equity Rotation Fund EQUITY LOWE S COS INC 54,070 326 0.15 0MML Equity Rotation Fund EQUITY NUCOR CORP 25,391 566 0.07 0MML Equity Rotation Fund EQUITY TEXAS INSTRUMENTS INC 25,131 176 0.07 0MML Equity Rotation Fund EQUITY COSTCO WHOLESALE CORP 39,050 110 0.11 0MML Equity Rotation Fund EQUITY INTEL CORP 46,395 896 0.13 0MML Equity Rotation Fund EQUITY MCDONALD S CORP 87,138 397 0.24 0MML Equity Rotation Fund EQUITY TARGET CORP 157,263 999 0.44 0MML Equity Rotation Fund EQUITY WASTE MANAGEMENT INC 101,287 895 0.28 0MML Equity Rotation Fund EQUITY CARDINAL HEALTH INC 17,559 374 0.05 0MML Equity Rotation Fund EQUITY SHERWIN WILLIAMS CO/THE 76,641 110 0.21 0MML Equity Rotation Fund EQUITY AUTOMATIC DATA PROCESSING 31,385 225 0.09 0MML Equity Rotation Fund EQUITY COLGATE PALMOLIVE CO 19,133 248 0.05 0MML Equity Rotation Fund EQUITY ECOLAB INC 112,910 565 0.32 0MML Equity Rotation Fund EQUITY GENERAL MILLS INC 37,008 600 0.10 0MML Equity Rotation Fund EQUITY GOLDMAN SACHS GROUP INC 413,998 2,060 1.16 0MML Equity Rotation Fund EQUITY PAYCHEX INC 51,133 641 0.14 0MML Equity Rotation Fund EQUITY SCHLUMBERGER LTD 103,801 6,671 0.29 0MML Equity Rotation Fund EQUITY ADVANCED MICRO DEVICES 61,574 751 0.17 0MML Equity Rotation Fund EQUITY DOVER CORP 33,260 307 0.09 0MML Equity Rotation Fund EQUITY KLA CORP 131,743 680 0.37 0MML Equity Rotation Fund EQUITY AFLAC INC 130,860 3,600 0.37 0MML Equity Rotation Fund EQUITY RELIANCE STEEL + ALUMINUM 249,590 2,446 0.70 0MML Equity Rotation Fund EQUITY HENRY SCHEIN INC 10,816 184 0.03 0MML Equity Rotation Fund EQUITY THOR INDUSTRIES INC 76,208 800 0.21 0MML Equity Rotation Fund EQUITY TOLL BROTHERS INC 288,359 5,926 0.81 0MML Equity Rotation Fund EQUITY TRACTOR SUPPLY COMPANY 94,031 656 0.26 0MML Equity Rotation Fund EQUITY AMETEK INC 13,916 140 0.04 0MML Equity Rotation Fund EQUITY ANSYS INC 91,952 281 0.26 0MML Equity Rotation Fund EQUITY APPLIED MATERIALS INC 133,406 2,244 0.37 0MML Equity Rotation Fund EQUITY COGNIZANT TECH SOLUTIONS A 140,576 2,025 0.39 0MML Equity Rotation Fund EQUITY TRUEBLUE INC 37,176 2,400 0.10 0MML Equity Rotation Fund EQUITY DOLLAR TREE INC 43,021 471 0.12 0MML Equity Rotation Fund EQUITY VISA INC CLASS A SHARES 1,091,836 5,460 3.05 0MML Equity Rotation Fund EQUITY QUANEX BUILDING PRODUCTS 53,476 2,900 0.15 0MML Equity Rotation Fund EQUITY DISCOVERY INC A 12,191 560 0.03 0MML Equity Rotation Fund EQUITY AGILENT TECHNOLOGIES INC 30,282 300 0.08 0MML Equity Rotation Fund EQUITY PACCAR INC 503,834 5,908 1.41 0MML Equity Rotation Fund EQUITY VERIZON COMMUNICATIONS INC 14,099 237 0.04 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Equity Rotation Fund EQUITY KANSAS CITY SOUTHERN 50,632 280 0.14 0MML Equity Rotation Fund EQUITY JUNIPER NETWORKS INC 17,308 805 0.05 0MML Equity Rotation Fund EQUITY QUANTA SERVICES INC 21,144 400 0.06 0MML Equity Rotation Fund EQUITY FORD MOTOR CO 19,847 2,980 0.06 0MML Equity Rotation Fund EQUITY TTM TECHNOLOGIES 50,204 4,400 0.14 0MML Equity Rotation Fund EQUITY NASDAQ INC 20,861 170 0.06 0MML Equity Rotation Fund EQUITY JPMORGAN CHASE + CO 693,144 7,200 1.94 0MML Equity Rotation Fund EQUITY AMERISOURCEBERGEN CORP 96,435 995 0.27 0MML Equity Rotation Fund EQUITY CHEVRON CORP 46,872 651 0.13 0MML Equity Rotation Fund EQUITY CENTENE CORP 18,316 314 0.05 0MML Equity Rotation Fund EQUITY 3M CO 25,308 158 0.07 0MML Equity Rotation Fund EQUITY FAIR ISAAC CORP 140,375 330 0.39 0MML Equity Rotation Fund EQUITY STEEL DYNAMICS INC 20,041 700 0.06 0MML Equity Rotation Fund EQUITY TAKE TWO INTERACTIVE SOFTWRE 19,826 120 0.06 0MML Equity Rotation Fund EQUITY TRIMBLE INC 9,740 200 0.03 0MML Equity Rotation Fund EQUITY VERTEX PHARMACEUTICALS INC 214,975 790 0.60 0MML Equity Rotation Fund EQUITY AMPHENOL CORP CL A 25,660 237 0.07 0MML Equity Rotation Fund EQUITY COGNEX CORP 19,530 300 0.05 0MML Equity Rotation Fund EQUITY NVIDIA CORP 362,617 670 1.01 0MML Equity Rotation Fund EQUITY SEI INVESTMENTS COMPANY 116,656 2,300 0.33 0MML Equity Rotation Fund EQUITY LUMEN TECHNOLOGIES INC 18,909 1,874 0.05 0MML Equity Rotation Fund EQUITY CONAGRA BRANDS INC 17,855 500 0.05 0MML Equity Rotation Fund EQUITY HONEYWELL INTERNATIONAL INC 217,285 1,320 0.61 0MML Equity Rotation Fund EQUITY AMGEN INC 44,224 174 0.12 0MML Equity Rotation Fund EQUITY APPLE INC 2,495,474 21,548 6.97 0MML Equity Rotation Fund EQUITY CVS HEALTH CORP 51,626 884 0.14 0MML Equity Rotation Fund EQUITY CAPITAL ONE FINANCIAL CORP 36,217 504 0.10 0MML Equity Rotation Fund EQUITY CISCO SYSTEMS INC 105,132 2,669 0.29 0MML Equity Rotation Fund EQUITY EXXON MOBIL CORP 170,895 4,978 0.48 0MML Equity Rotation Fund EQUITY GENERAL ELECTRIC CO 13,351 2,143 0.04 0MML Equity Rotation Fund EQUITY HOME DEPOT INC 258,270 930 0.72 0MML Equity Rotation Fund EQUITY MICROSOFT CORP 2,675,818 12,722 7.48 0MML Equity Rotation Fund EQUITY MICRON TECHNOLOGY INC 441,424 9,400 1.23 0MML Equity Rotation Fund EQUITY MORGAN STANLEY 77,360 1,600 0.22 0MML Equity Rotation Fund EQUITY ORACLE CORP 25,134 421 0.07 0MML Equity Rotation Fund EQUITY PFIZER INC 100,742 2,745 0.28 0MML Equity Rotation Fund EQUITY WALMART INC 1,417,288 10,130 3.96 0MML Equity Rotation Fund EQUITY GENUINE PARTS CO 97,835 1,028 0.27 0MML Equity Rotation Fund EQUITY BANK OF AMERICA CORP 609,477 25,300 1.70 0MML Equity Rotation Fund EQUITY LOCKHEED MARTIN CORP 56,342 147 0.16 0MML Equity Rotation Fund EQUITY NORFOLK SOUTHERN CORP 385,182 1,800 1.08 0MML Equity Rotation Fund EQUITY OCCIDENTAL PETROLEUM CORP 5,145 514 0.01 0MML Equity Rotation Fund EQUITY OLIN CORP 35,902 2,900 0.10 0MML Equity Rotation Fund EQUITY THERMO FISHER SCIENTIFIC INC 269,769 611 0.75 0MML Equity Rotation Fund EQUITY UNION PACIFIC CORP 240,181 1,220 0.67 0MML Equity Rotation Fund EQUITY BARNES GROUP INC 32,166 900 0.09 0MML Equity Rotation Fund EQUITY PATRICK INDUSTRIES INC 63,272 1,100 0.18 0MML Equity Rotation Fund EQUITY QUEST DIAGNOSTICS INC 68,122 595 0.19 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Equity Rotation Fund EQUITY QUIDEL CORP 19,744 90 0.06 0MML Equity Rotation Fund EQUITY BROWN FORMAN CORP CLASS A 34,340 500 0.10 0MML Equity Rotation Fund EQUITY ENTEGRIS INC 7,434 100 0.02 0MML Equity Rotation Fund EQUITY MAGNA INTERNATIONAL INC 242,475 5,300 0.68 0MML Equity Rotation Fund EQUITY CITRIX SYSTEMS INC 35,667 259 0.10 0MML Equity Rotation Fund EQUITY AMAZON.COM INC 1,697,165 539 4.74 0MML Equity Rotation Fund EQUITY MCKESSON CORP 458,258 3,077 1.28 0MML Equity Rotation Fund EQUITY MOHAWK INDUSTRIES INC 19,518 200 0.05 0MML Equity Rotation Fund EQUITY ROBERT HALF INTL INC 57,334 1,083 0.16 0MML Equity Rotation Fund EQUITY EBAY INC 396,794 7,616 1.11 0MML Equity Rotation Fund EQUITY WABASH NATIONAL CORP 46,644 3,900 0.13 0MML Equity Rotation Fund EQUITY WEST PHARMACEUTICAL SERVICES 32,988 120 0.09 0MML Equity Rotation Fund EQUITY ROPER TECHNOLOGIES INC 43,462 110 0.12 0MML Equity Rotation Fund EQUITY AGCO CORP 326,788 4,400 0.91 0MML Equity Rotation Fund EQUITY CUMMINS INC 1,007,656 4,772 2.82 0MML Equity Rotation Fund EQUITY EASTMAN CHEMICAL CO 23,436 300 0.07 0MML Equity Rotation Fund EQUITY INTERNATIONAL PAPER CO 30,446 751 0.09 0MML Equity Rotation Fund EQUITY KEYCORP 213,106 17,863 0.60 0MML Equity Rotation Fund EQUITY LAM RESEARCH CORP 429,616 1,295 1.20 0MML Equity Rotation Fund EQUITY MANPOWERGROUP INC 158,026 2,155 0.44 0MML Equity Rotation Fund EQUITY UNITEDHEALTH GROUP INC 174,903 561 0.49 0MML Equity Rotation Fund EQUITY LABORATORY CRP OF AMER HLDGS 45,750 243 0.13 0MML Equity Rotation Fund EQUITY SENSATA TECHNOLOGIES HOLDING 41,156 954 0.11 0MML Equity Rotation Fund EQUITY BROADCOM INC 1,019,367 2,798 2.85 0MML Equity Rotation Fund EQUITY ARCOSA INC 91,839 2,083 0.26 0MML Equity Rotation Fund EQUITY STONECO LTD A 10,578 200 0.03 0MML Equity Rotation Fund EQUITY CIGNA CORP 50,823 300 0.14 0MML Special Situations Fund EQUITY ARCONIC CORP 1,087,755 57,100 3.73 0MML Special Situations Fund EQUITY WEST PHARMACEUTICAL SERVICES 603,955 2,197 2.07 0MML Special Situations Fund EQUITY OTIS WORLDWIDE CORP 1,860,116 29,800 6.37 0MML Special Situations Fund CASH EQUIVALENT FIXED INC CLEARING CORP.REPO 148,206 148,206 0.51 0 10/1/2020MML Special Situations Fund EQUITY WELBILT INC 150,304 24,400 0.51 0MML Special Situations Fund EQUITY ALTICE USA INC A 622,856 23,956 2.13 0MML Special Situations Fund EQUITY BRIGHTHOUSE FINANCIAL INC 928,395 34,500 3.18 0MML Special Situations Fund EQUITY DELPHI TECHNOLOGIES PLC 548,088 32,800 1.88 0MML Special Situations Fund EQUITY PERSPECTA INC 494,750 25,437 1.69 0MML Special Situations Fund EQUITY WYNDHAM HOTELS + RESORTS INC 792,850 15,700 2.72 0MML Special Situations Fund EQUITY FRONTDOOR INC 385,209 9,900 1.32 0MML Special Situations Fund EQUITY ARCOSA INC 1,639,222 37,179 5.62 0MML Special Situations Fund EQUITY RESIDEO TECHNOLOGIES INC 5,610 510 0.02 0MML Special Situations Fund EQUITY DOW INC 2,884,165 61,300 9.88 0MML Special Situations Fund EQUITY KONTOOR BRANDS INC 457,380 18,900 1.57 0MML Special Situations Fund EQUITY CORTEVA INC 2,002,295 69,500 6.86 0MML Special Situations Fund EQUITY DUPONT DE NEMOURS INC 366,168 6,600 1.25 0MML Special Situations Fund EQUITY IAA INC 536,321 10,300 1.84 0MML Special Situations Fund EQUITY LAMB WESTON HOLDINGS INC 1,464,567 22,100 5.02 0MML Special Situations Fund EQUITY ALCOA CORP 526,839 45,300 1.80 0MML Special Situations Fund EQUITY HILTON GRAND VACATIONS INC 302,112 14,400 1.03 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Special Situations Fund EQUITY PARK HOTELS + RESORTS INC 418,581 41,900 1.43 0MML Special Situations Fund EQUITY BRUNSWICK CORP 353,460 6,000 1.21 0MML Special Situations Fund EQUITY PENN NATIONAL GAMING INC 1,832,040 25,200 6.28 0MML Special Situations Fund EQUITY HONEYWELL INTERNATIONAL INC 503,707 3,060 1.73 0MML Special Situations Fund CASH US DOLLAR (10) (10) 0.00 0MML Special Situations Fund EQUITY JACOBS ENGINEERING GROUP INC 380,357 4,100 1.30 0MML Special Situations Fund EQUITY ZOETIS INC 768,805 4,649 2.63 0MML Special Situations Fund EQUITY KEYSIGHT TECHNOLOGIES IN 820,072 8,302 2.81 0MML Special Situations Fund EQUITY CHEMOURS CO/THE 901,221 43,100 3.09 0MML Special Situations Fund EQUITY PAYPAL HOLDINGS INC 938,257 4,762 3.21 0MML Special Situations Fund EQUITY INGEVITY CORP 390,576 7,900 1.34 0MML Special Situations Fund EQUITY FORTIVE CORP 983,109 12,900 3.37 0MML Special Situations Fund EQUITY CARRIER GLOBAL CORP 3,093,702 101,300 10.60 0MML Total Return Bond Fund FIXED INCOME FNMA TBA 30 YR 2.5 733,195 700,000 0.19 2.5 11/12/2050MML Total Return Bond Fund FIXED INCOME SLM STUDENT LOAN TRUST 762,227 781,228 0.20 0.79813 5/26/2026MML Total Return Bond Fund FIXED INCOME KRAFT HEINZ FOODS CO 334,865 250,000 0.09 6.875 1/26/2039MML Total Return Bond Fund FIXED INCOME KRAFT HEINZ FOODS CO 383,293 350,000 0.10 5 6/4/2042MML Total Return Bond Fund FIXED INCOME HEALTHCARE REALTY TRUST 252,263 235,000 0.07 3.75 4/15/2023MML Total Return Bond Fund FIXED INCOME AMERICAN CAMPUS CMNTYS 683,619 650,000 0.18 3.75 4/15/2023MML Total Return Bond Fund FIXED INCOME FNMA TBA 15 YR 2 2,936,676 2,825,000 0.77 2 10/19/2035MML Total Return Bond Fund FIXED INCOME CHASE MORTGAGE FINANCE CORPORA 348,565 359,237 0.09 3.649509 3/25/2037MML Total Return Bond Fund FIXED INCOME FNMA POOL MA1512 251,419 233,522 0.07 3.5 7/1/2033MML Total Return Bond Fund FIXED INCOME JERSEY CENTRAL PWR + LT 887,679 800,000 0.23 4.7 4/1/2024MML Total Return Bond Fund FIXED INCOME SLM STUDENT LOAN TRUST 641,666 700,000 0.17 2.0945 7/25/2073MML Total Return Bond Fund FIXED INCOME PENNSYLVANIA HIGHER EDUCATION 859,149 871,157 0.23 0.89813 11/25/2042MML Total Return Bond Fund CASH POUND STERLING (0) (0) - 0MML Total Return Bond Fund CASH MEXICAN PESO (NEW) (0) (0) - 0MML Total Return Bond Fund CASH US DOLLAR 2,185,945 2,185,945 0.58 0MML Total Return Bond Fund CASH EURO CURRENCY 7 6 0.00 0MML Total Return Bond Fund FIXED INCOME NORTHWEST AIR 2001 1 A1 284,573 295,680 0.07 7.041 10/1/2023MML Total Return Bond Fund FIXED INCOME GENERAL ELECTRIC CO 377,411 300,000 0.10 6.75 3/15/2032MML Total Return Bond Fund FIXED INCOME WAMU MORTGAGE PASS THROUGH CER 572,047 592,338 0.15 0.47813 1/25/2045MML Total Return Bond Fund FIXED INCOME INDYMAC INDX MORTGAGE LOAN TRU 756,793 858,114 0.20 3.04283 10/25/2035MML Total Return Bond Fund FIXED INCOME PETROLEOS MEXICANOS 747,401 900,000 0.20 6.625 6/15/2035MML Total Return Bond Fund FIXED INCOME SLC STUDENT LOAN TRUST 2,160,866 2,300,000 0.57 0.41038 9/15/2039MML Total Return Bond Fund FIXED INCOME CENTERPOINT ENERGY RESOU 790,812 595,000 0.21 6.25 2/1/2037MML Total Return Bond Fund FIXED INCOME GENERAL ELECTRIC CO 285,323 244,000 0.08 5.875 1/14/2038MML Total Return Bond Fund FIXED INCOME NEW YORK NY 935,670 750,000 0.25 5.206 10/1/2031MML Total Return Bond Fund FIXED INCOME MORGAN STANLEY CAPITAL INC 1,572,073 1,613,175 0.41 0.43813 1/25/2036MML Total Return Bond Fund FIXED INCOME CALIFORNIA ST 83 89 0.00 7.95 3/1/2036MML Total Return Bond Fund FIXED INCOME FNMA POOL AD6374 21,356 18,632 0.01 5 5/1/2040MML Total Return Bond Fund FIXED INCOME NEW YORK ST DORM AUTH ST PERSO 958,695 750,000 0.25 5.289 3/15/2033MML Total Return Bond Fund FIXED INCOME FORD MOTOR CREDIT CO LLC 80,500 80,000 0.02 5.75 2/1/2021MML Total Return Bond Fund FIXED INCOME FNMA POOL MA1148 1,741,215 1,604,232 0.46 3.5 8/1/2042MML Total Return Bond Fund FIXED INCOME FNMA POOL MA1146 735,844 670,186 0.19 4 8/1/2042MML Total Return Bond Fund FIXED INCOME FNMA TBA 30 YR 2.5 3,199,879 3,050,000 0.84 2.5 10/14/2050MML Total Return Bond Fund FIXED INCOME DUKE ENERGY CAROLINAS 1,222,937 1,000,000 0.32 4 9/30/2042MML Total Return Bond Fund FIXED INCOME CHURCHILL DOWNS INC 376,812 361,000 0.10 5.5 4/1/2027

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Total Return Bond Fund FIXED INCOME FED HM LN PC POOL ZM1779 1,282,508 1,221,061 0.34 3 9/1/2046MML Total Return Bond Fund FIXED INCOME ONE BRYANT PARK TRUST 522,257 490,000 0.14 2.51641 9/15/2054MML Total Return Bond Fund FIXED INCOME ENCOMPASS HEALTH CORP 200,879 198,000 0.05 4.75 2/1/2030MML Total Return Bond Fund FIXED INCOME LEVEL 3 FINANCING INC 111,998 109,000 0.03 4.625 9/15/2027MML Total Return Bond Fund FIXED INCOME ZAYO GROUP HOLDINGS INC 216,960 223,875 0.06 0 3/9/2027MML Total Return Bond Fund CASH EQUIVALENT TREASURY BILL 1,254,940 1,255,000 0.33 0.01 10/22/2020MML Total Return Bond Fund FIXED INCOME ELANCO ANIMAL HEALTH INCORPORA 402,951 415,058 0.11 0 8/1/2027MML Total Return Bond Fund FIXED INCOME LOS ANGELES CA UNIF SCH DIST 1,290,950 1,000,000 0.34 5.755 7/1/2029MML Total Return Bond Fund FIXED INCOME LG+E AND KU ENERGY LLC 1,234,432 1,200,000 0.33 4.375 10/1/2021MML Total Return Bond Fund FIXED INCOME FED HM LN PC POOL G61556 1,187,669 1,098,640 0.31 3.5 8/1/2048MML Total Return Bond Fund FIXED INCOME FNMA POOL BL1132 1,107,451 920,000 0.29 3.73 1/1/2029MML Total Return Bond Fund CASH EQUIVALENT FORD MOTOR CREDIT CO 743,790 750,000 0.20 0 1/8/2021MML Total Return Bond Fund FIXED INCOME WASHINGTON MUTUAL MORTGAGE PAS 718,872 737,183 0.19 5.75 2/25/2036MML Total Return Bond Fund FIXED INCOME AMERICAN HOME MORTGAGE INVESTM 858,420 875,083 0.23 2.31438 6/25/2045MML Total Return Bond Fund FIXED INCOME WELLS FARGO HOME EQUITY TRUST 806,731 825,670 0.21 1.19813 10/25/2034MML Total Return Bond Fund FIXED INCOME JERSEY CENTRAL PWR + LT 556,254 425,000 0.15 6.4 5/15/2036MML Total Return Bond Fund FIXED INCOME SLM STUDENT LOAN TRUST 1,101,269 1,142,237 0.29 1.3445 7/25/2023MML Total Return Bond Fund FIXED INCOME FNMA POOL 988578 152,115 129,750 0.04 5.5 8/1/2038MML Total Return Bond Fund FUTURE US ULTRA BOND CBT DEC20 - 100,000 0.00 0 12/21/2020MML Total Return Bond Fund FIXED INCOME TEACHERS INSUR + ANNUITY 510,939 500,000 0.13 3.3 5/15/2050MML Total Return Bond Fund FIXED INCOME US TREASURY N/B 3,305,865 3,478,000 0.87 1.25 5/15/2050MML Total Return Bond Fund FIXED INCOME GE CAPITAL FUNDING LLC 354,390 330,000 0.09 4.4 5/15/2030MML Total Return Bond Fund FIXED INCOME WALT DISNEY COMPANY/THE 356,291 330,000 0.09 2.65 1/13/2031MML Total Return Bond Fund FIXED INCOME WALT DISNEY COMPANY/THE 749,393 665,000 0.20 3.6 1/13/2051MML Total Return Bond Fund FIXED INCOME POWERTEAM SERVICES LLC 326,663 310,000 0.09 9.033 12/4/2025MML Total Return Bond Fund FIXED INCOME ABBVIE INC 277,211 250,000 0.07 3.8 3/15/2025MML Total Return Bond Fund FIXED INCOME T MOBILE USA INC 248,996 249,375 0.07 0 4/1/2027MML Total Return Bond Fund FIXED INCOME CITIGROUP INC 455,910 435,000 0.12 2.572 6/3/2031MML Total Return Bond Fund FIXED INCOME WELLS FARGO + COMPANY 417,312 400,000 0.11 2.393 6/2/2028MML Total Return Bond Fund CASH EQUIVALENT TREASURY BILL 2,574,524 2,575,000 0.68 0 12/10/2020MML Total Return Bond Fund FIXED INCOME PLAINS ALL AMER PIPELINE 290,905 300,000 0.08 3.8 9/15/2030MML Total Return Bond Fund FIXED INCOME BANK OF AMERICA CORP 332,487 330,000 0.09 1.319 6/19/2026MML Total Return Bond Fund FIXED INCOME T MOBILE USA INC 160,365 155,000 0.04 2.55 2/15/2031MML Total Return Bond Fund FIXED INCOME CAESARS ENTERTAIN INC 108,705 104,000 0.03 6.25 7/1/2025MML Total Return Bond Fund FIXED INCOME TREASURY BILL - - - 0.01 1/14/2021MML Total Return Bond Fund FIXED INCOME TSY INFL IX N/B 1,675,772 1,506,453 0.44 0.125 7/15/2030MML Total Return Bond Fund FIXED INCOME US TREASURY N/B 8,504,366 8,505,000 2.24 0.125 7/31/2022MML Total Return Bond Fund FIXED INCOME AT+T INC 52,130 55,000 0.01 3.3 2/1/2052MML Total Return Bond Fund FIXED INCOME RITE AID CORP 99,875 100,000 0.03 8 11/15/2026MML Total Return Bond Fund FIXED INCOME US TREASURY N/B 3,339,347 3,356,000 0.88 0.625 8/15/2030MML Total Return Bond Fund FIXED INCOME FNMA POOL MA4152 1,181,015 1,140,000 0.31 2 10/1/2040MML Total Return Bond Fund CASH EQUIVALENT TREASURY BILL 2,319,100 2,320,000 0.61 0 2/11/2021MML Total Return Bond Fund FIXED INCOME US TREASURY N/B 10,343,583 10,540,000 2.72 1.375 8/15/2050MML Total Return Bond Fund FIXED INCOME CASH MGMT BILL 919,626 920,000 0.24 0 1/26/2021MML Total Return Bond Fund FIXED INCOME PETROBRAS GLOBAL FINANCE 211,221 201,000 0.06 5.093 1/15/2030MML Total Return Bond Fund FIXED INCOME US TREASURY N/B 14,439,466 14,440,000 3.80 0.125 8/31/2022MML Total Return Bond Fund FIXED INCOME SAXON ASSET SECURITIES TRUST 261,517 263,081 0.07 0.83813 5/25/2035MML Total Return Bond Fund FIXED INCOME CITIGROUP MORTGAGE LOAN TRUST 280,646 280,868 0.07 2.53 10/25/2035

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Total Return Bond Fund FIXED INCOME COUNTRYWIDE ALTERNATIVE LOAN T 1,134,420 1,238,778 0.30 0.35813 7/25/2046MML Total Return Bond Fund FIXED INCOME COUNTRYWIDE ASSET BACKED CERTI 390,587 412,197 0.10 4.538463 10/25/2046MML Total Return Bond Fund FIXED INCOME NOMURA ASSET ACCEPTANCE CORPOR 1,125,808 1,174,395 0.30 1.21813 2/25/2035MML Total Return Bond Fund FIXED INCOME COLLEGIATE FUNDING SERVICES ED 1,455,747 1,500,000 0.38 0.43325 3/28/2035MML Total Return Bond Fund FIXED INCOME SAXON ASSET SECURITIES TRUST 1,620,812 2,048,184 0.43 0.38813 5/25/2047MML Total Return Bond Fund FIXED INCOME FNMA POOL 977014 28,591 24,325 0.01 5.5 5/1/2038MML Total Return Bond Fund FIXED INCOME SLM STUDENT LOAN TRUST 859,899 868,877 0.23 1.7445 4/25/2023MML Total Return Bond Fund FIXED INCOME SLM STUDENT LOAN TRUST 732,879 778,905 0.19 0.5745 1/25/2022MML Total Return Bond Fund FIXED INCOME FNMA POOL 985524 20,911 17,804 0.01 5.5 6/1/2038MML Total Return Bond Fund FIXED INCOME FNMA POOL 995482 116,379 99,204 0.03 5.5 1/1/2039MML Total Return Bond Fund FIXED INCOME FNMA POOL 931504 78,613 69,900 0.02 4.5 7/1/2039MML Total Return Bond Fund FIXED INCOME CITIGROUP MORTGAGE LOAN TRUST 2,319,668 2,400,000 0.61 0.43813 8/25/2036MML Total Return Bond Fund FIXED INCOME SLM STUDENT LOAN TRUST 728,771 742,409 0.19 0.8945 1/25/2022MML Total Return Bond Fund FIXED INCOME FNMA POOL AI2733 133,573 116,761 0.04 5 5/1/2041MML Total Return Bond Fund FIXED INCOME SLM STUDENT LOAN TRUST 763,349 767,818 0.20 1.09813 9/25/2028MML Total Return Bond Fund FIXED INCOME RUBY PIPELINE LLC 429,685 511,364 0.11 7.75 4/1/2022MML Total Return Bond Fund FIXED INCOME SLM STUDENT LOAN TRUST 856,284 910,568 0.23 0.84813 1/25/2029MML Total Return Bond Fund FIXED INCOME ABU DHABI GOVT INT L 213,687 200,000 0.06 2.5 9/30/2029MML Total Return Bond Fund FIXED INCOME HOSTESS BRANDS LLC 126,692 129,023 0.03 0 8/3/2025MML Total Return Bond Fund FIXED INCOME LIVE NATION ENTERTAINMEN 102,085 109,000 0.03 4.75 10/15/2027MML Total Return Bond Fund CASH EQUIVALENT FORD MOTOR CREDIT CO 999,710 1,000,000 0.26 0.01 10/8/2020MML Total Return Bond Fund FIXED INCOME CHARTER COMM OPT LLC/CAP 261,541 230,000 0.07 4.8 3/1/2050MML Total Return Bond Fund FIXED INCOME DC OFFICE TRUST 410,264 375,000 0.11 2.965 9/15/2045MML Total Return Bond Fund FIXED INCOME BANK OF AMERICA CORP 270,023 250,000 0.07 2.884 10/22/2030MML Total Return Bond Fund FIXED INCOME WELLS FARGO + COMPANY 327,539 305,000 0.09 2.879 10/30/2030MML Total Return Bond Fund FIXED INCOME CPT MORTGAGE TRUST 387,105 355,000 0.10 2.865 11/13/2039MML Total Return Bond Fund CASH EQUIVALENT TREASURY BILL 1,824,845 1,825,000 0.48 0 11/5/2020MML Total Return Bond Fund FIXED INCOME BROADCOM INC 139,549 139,899 0.04 0 11/4/2022MML Total Return Bond Fund FIXED INCOME SEALED AIR CORP 31,344 30,000 0.01 4 12/1/2027MML Total Return Bond Fund FIXED INCOME ABBVIE INC 955,677 805,000 0.25 4.25 11/21/2049MML Total Return Bond Fund FIXED INCOME LEVEL 3 FINANCING INC 120,976 125,000 0.03 0 3/1/2027MML Total Return Bond Fund FIXED INCOME GRIFOLS WORLDWIDE OPERATIONS U 48,540 49,625 0.01 0 11/15/2027MML Total Return Bond Fund FIXED INCOME HUDSON YARDS 414,631 375,000 0.11 3.040893 12/10/2041MML Total Return Bond Fund FIXED INCOME BX TRUST 2019 OC11 190,789 180,000 0.05 3.202 12/9/2041MML Total Return Bond Fund FIXED INCOME GFL ENVIRONMENTAL INC 169,346 164,000 0.04 5.125 12/15/2026MML Total Return Bond Fund FIXED INCOME USA COM PART/USA COM FIN 95,196 96,000 0.03 6.875 9/1/2027MML Total Return Bond Fund FIXED INCOME BERRY GLOBAL INC 96,158 99,246 0.03 0 7/1/2026MML Total Return Bond Fund FIXED INCOME UNITED MEXICAN STATES 614,586 600,000 0.16 3.25 4/16/2030MML Total Return Bond Fund FIXED INCOME ENERGY TRANSFER OPERATNG 120,368 130,000 0.03 5 5/15/2050MML Total Return Bond Fund FIXED INCOME AVOLON HOLDINGS FNDG LTD 307,062 335,000 0.08 2.875 2/15/2025MML Total Return Bond Fund FIXED INCOME ROCKIES EXPRESS PIPELINE 242,500 250,000 0.06 4.8 5/15/2030MML Total Return Bond Fund FIXED INCOME CENTURYLINK INC 77,209 76,000 0.02 4 2/15/2027MML Total Return Bond Fund FIXED INCOME REPUBLIC OF COLOMBIA 204,500 200,000 0.05 3 1/30/2030MML Total Return Bond Fund FIXED INCOME TARGA RESOURCES PARTNERS 77,018 72,000 0.02 6.875 1/15/2029MML Total Return Bond Fund FIXED INCOME PETROLEOS MEXICANOS 333,578 395,000 0.09 5.95 1/28/2031MML Total Return Bond Fund FIXED INCOME MORGAN STANLEY REREMIC TRUST 362,577 374,345 0.10 2.010669 11/26/2046MML Total Return Bond Fund FIXED INCOME SFAVE COMMERCIAL MORTGAGE SECU 194,034 185,000 0.05 3.872 1/5/2043MML Total Return Bond Fund FIXED INCOME FED HM LN PC POOL G60023 2,127,187 1,917,768 0.56 3.5 4/1/2045

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Total Return Bond Fund FIXED INCOME FNMA POOL AM9188 914,014 780,000 0.24 3.12 6/1/2035MML Total Return Bond Fund FIXED INCOME BANC OF AMERICA FUNDING CORPOR 474,423 474,505 0.12 2.5 3/25/2040MML Total Return Bond Fund FIXED INCOME IHS MARKIT LTD 135,955 120,000 0.04 4.75 2/15/2025MML Total Return Bond Fund FIXED INCOME POST HOLDINGS INC 157,688 150,000 0.04 5.75 3/1/2027MML Total Return Bond Fund FIXED INCOME FORD MOTOR CREDIT CO LLC 85,965 90,000 0.02 1.50325 3/28/2022MML Total Return Bond Fund FIXED INCOME FREDDIE MAC 1,693,063 1,499,938 0.45 3.25 4/15/2053MML Total Return Bond Fund FIXED INCOME FNMA POOL AN7345 1,181,482 992,389 0.31 3.21 11/1/2037MML Total Return Bond Fund FIXED INCOME CHURCHILL DOWNS INC 80,400 80,000 0.02 4.75 1/15/2028MML Total Return Bond Fund FIXED INCOME VOYA CLO LTD 257,466 258,463 0.07 0.9645 7/25/2026MML Total Return Bond Fund FIXED INCOME DRYDEN SENIOR LOAN FUND 965,271 975,000 0.25 1.175 4/15/2029MML Total Return Bond Fund FIXED INCOME LCM LTD PARTNERSHIP 732,665 740,000 0.19 1.15175 4/20/2028MML Total Return Bond Fund FIXED INCOME AIR LEASE CORP 589,904 575,000 0.16 3.5 1/15/2022MML Total Return Bond Fund FIXED INCOME FHLMC MULTIFAMILY STRUCTURED P 976,389 785,000 0.26 3.9 10/25/2033MML Total Return Bond Fund FIXED INCOME TCI FLATIRON CLO LTD 223,808 225,000 0.06 1.49288 7/17/2028MML Total Return Bond Fund FIXED INCOME EXXON MOBIL CORPORATION 920,043 735,000 0.24 4.327 3/19/2050MML Total Return Bond Fund FIXED INCOME EXXON MOBIL CORPORATION 345,929 300,000 0.09 3.482 3/19/2030MML Total Return Bond Fund FIXED INCOME INTEL CORP 688,560 500,000 0.18 4.75 3/25/2050MML Total Return Bond Fund FIXED INCOME WELLS FARGO + COMPANY 1,662,907 1,215,000 0.44 5.013 4/4/2051MML Total Return Bond Fund FIXED INCOME FANNIEMAE ACES 130,702 909,495 0.03 1.9229 12/25/2030MML Total Return Bond Fund FIXED INCOME FANNIEMAE ACES 29,565 735,000 0.01 0.77572 12/25/2027MML Total Return Bond Fund FIXED INCOME FANNIEMAE ACES 262,112 1,897,357 0.07 1.8264 12/25/2030MML Total Return Bond Fund FIXED INCOME EQUINOR ASA 464,597 405,000 0.12 3.7 4/6/2050MML Total Return Bond Fund FIXED INCOME T MOBILE USA INC 339,929 290,000 0.09 4.375 4/15/2040MML Total Return Bond Fund FIXED INCOME BP CAP MARKETS AMERICA 217,960 190,000 0.06 3.633 4/6/2030MML Total Return Bond Fund FIXED INCOME T MOBILE USA INC 329,040 290,000 0.09 3.875 4/15/2030MML Total Return Bond Fund FIXED INCOME CENTENE CORP 191,938 185,000 0.05 3.375 2/15/2030MML Total Return Bond Fund FIXED INCOME JPMORGAN CHASE + CO 343,399 320,000 0.09 3.109 4/22/2051MML Total Return Bond Fund FIXED INCOME TSY INFL IX N/B 864,617 812,373 0.23 0.125 4/15/2025MML Total Return Bond Fund FIXED INCOME AMCOR FINANCE USA INC 724,080 650,000 0.19 3.625 4/28/2026MML Total Return Bond Fund FIXED INCOME WELLS FARGO + COMPANY 523,050 500,000 0.14 3.068 4/30/2041MML Total Return Bond Fund FIXED INCOME CENTENE CORP 172,661 165,000 0.05 4.25 12/15/2027MML Total Return Bond Fund FIXED INCOME FNMA POOL BL6060 614,936 570,000 0.16 2.455 4/1/2040MML Total Return Bond Fund FUTURE US 10YR ULTRA FUT DEC20 - (1,700,000) 0.00 0 12/21/2020MML Total Return Bond Fund FIXED INCOME FED HM LN PC POOL G08844 289,183 263,732 0.08 5 10/1/2048MML Total Return Bond Fund FIXED INCOME CHENIERE ENERGY PARTNERS 30,690 30,000 0.01 5.25 10/1/2025MML Total Return Bond Fund FIXED INCOME TRANSOCEAN PONTUS LTD 120,663 134,940 0.03 6.125 8/1/2025MML Total Return Bond Fund FIXED INCOME IHS MARKIT LTD 457,992 385,000 0.12 4.75 8/1/2028MML Total Return Bond Fund FIXED INCOME FNMA POOL CA2208 855,078 789,709 0.23 4.5 8/1/2048MML Total Return Bond Fund FIXED INCOME FANNIE MAE 433,550 416,379 0.11 3.5 1/25/2047MML Total Return Bond Fund FIXED INCOME TENET HEALTHCARE CORP 184,920 184,000 0.05 4.625 7/15/2024MML Total Return Bond Fund FIXED INCOME FANNIE MAE 744,621 723,975 0.20 3.5 5/25/2046MML Total Return Bond Fund FIXED INCOME FORD MOTOR CREDIT CO LLC 185,463 185,000 0.05 3.813 10/12/2021MML Total Return Bond Fund FIXED INCOME FORD MOTOR CREDIT CO LLC 389,093 405,000 0.10 1.14625 10/12/2021MML Total Return Bond Fund FIXED INCOME FED HM LN PC POOL G18713 309,959 292,246 0.08 3.5 11/1/2033MML Total Return Bond Fund FIXED INCOME LLOYDS BANKING GROUP PLC 346,298 320,000 0.09 4.05 8/16/2023MML Total Return Bond Fund FIXED INCOME BANC OF AMERICA MERRILL LYNCH 729,137 620,000 0.19 4.227108 8/10/2038MML Total Return Bond Fund FIXED INCOME FED HM LN PC POOL G16598 1,245,394 1,175,715 0.33 2.5 12/1/2031MML Total Return Bond Fund FIXED INCOME GFL ENVIRONMENTAL INC 139,096 139,865 0.04 0 5/30/2025

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Total Return Bond Fund FIXED INCOME INTELSAT JACKSON HLDG 110,295 171,000 0.03 8.5 10/15/2024MML Total Return Bond Fund FIXED INCOME AVOLON HOLDINGS FNDG LTD 39,903 40,000 0.01 5.125 10/1/2023MML Total Return Bond Fund FIXED INCOME ABBVIE INC 507,943 400,000 0.13 4.875 11/14/2048MML Total Return Bond Fund FIXED INCOME GLP CAPITAL LP / FIN II 345,238 310,000 0.09 5.3 1/15/2029MML Total Return Bond Fund FIXED INCOME INTL FLAVOR + FRAGRANCES 705,316 570,000 0.19 5 9/26/2048MML Total Return Bond Fund FIXED INCOME GOVERNMENT NATIONAL MORTGAGE A 647,850 609,154 0.17 3.5 9/20/2048MML Total Return Bond Fund FIXED INCOME CREDIT SUISSE MORTGAGE TRUST 1,612,387 1,451,555 0.42 3.85 9/25/2057MML Total Return Bond Fund FIXED INCOME BAT CAPITAL CORP 432,517 400,000 0.11 4.39 8/15/2037MML Total Return Bond Fund FIXED INCOME BAT CAPITAL CORP 856,699 800,000 0.23 4.54 8/15/2047MML Total Return Bond Fund FIXED INCOME AT+T INC 592,665 500,000 0.16 4.3 2/15/2030MML Total Return Bond Fund FIXED INCOME GENERAL MOTORS FINL CO 696,698 675,000 0.18 4.2 11/6/2021MML Total Return Bond Fund FIXED INCOME INDONESIA ASAHAN ALUMINI 243,506 200,000 0.06 6.53 11/15/2028MML Total Return Bond Fund FIXED INCOME GS MORTGAGE BACKED SECURITIES 1,475,675 1,412,496 0.39 3.75 10/25/2057MML Total Return Bond Fund FIXED INCOME US TREASURY N/B 22,942,181 22,960,000 6.04 0.25 8/31/2025MML Total Return Bond Fund FIXED INCOME AIMCO 750,000 750,000 0.20 1 10/15/2031MML Total Return Bond Fund FIXED INCOME FNMA POOL MA4176 2,248,073 2,170,000 0.59 2 11/1/2040MML Total Return Bond Fund FIXED INCOME NUTRITION + BIOSCIENCES 212,032 210,000 0.06 3.468 12/1/2050MML Total Return Bond Fund FIXED INCOME CYRUSONE LP/CYRUSONE FIN 337,100 345,000 0.09 2.15 11/1/2030MML Total Return Bond Fund FIXED INCOME HSBC HOLDINGS PLC 862,393 870,000 0.23 2.013 9/22/2028MML Total Return Bond Fund FIXED INCOME AT+T INC 177,896 184,000 0.05 3.5 9/15/2053MML Total Return Bond Fund FIXED INCOME US TREASURY N/B 9,205,537 9,215,000 2.42 0.25 9/30/2025MML Total Return Bond Fund FIXED INCOME US TREASURY N/B 3,950,191 3,975,000 1.04 0.375 9/30/2027MML Total Return Bond Fund FIXED INCOME US TREASURY N/B 31,664,987 31,665,000 8.34 0.125 9/30/2022MML Total Return Bond Fund FIXED INCOME BAT CAPITAL CORP 184,344 185,000 0.05 2.726 3/25/2031MML Total Return Bond Fund FIXED INCOME CENTENE CORP 872,271 855,000 0.23 3 10/15/2030MML Total Return Bond Fund FIXED INCOME JERSEY CITY NJ MUNI UTILITIES 967,258 850,000 0.25 5.47 5/15/2027MML Total Return Bond Fund FIXED INCOME IMPAC CMB TRUST 830,996 892,448 0.22 0.66813 4/25/2035MML Total Return Bond Fund FIXED INCOME COUNTRYWIDE ALTERNATIVE LOAN T 1,113,627 1,267,887 0.29 0.44813 8/25/2035MML Total Return Bond Fund FIXED INCOME FIRST HORIZON MORTGAGE PASS TH 314,804 361,904 0.08 4.3392 11/25/2035MML Total Return Bond Fund FIXED INCOME WAMU MORTGAGE PASS THROUGH CER 610,068 630,408 0.16 0.43813 10/25/2045MML Total Return Bond Fund FIXED INCOME CENTRAL GARDEN + PET CO 129,150 123,000 0.03 5.125 2/1/2028MML Total Return Bond Fund FIXED INCOME CSC HOLDINGS LLC 208,000 200,000 0.05 5.5 5/15/2026MML Total Return Bond Fund FIXED INCOME USA COM PART/USA COM FIN 29,738 30,000 0.01 6.875 4/1/2026MML Total Return Bond Fund FIXED INCOME FORD MOTOR CREDIT CO LLC 640,800 640,000 0.17 5.085 1/7/2021MML Total Return Bond Fund FIXED INCOME TRANSOCEAN POSEIDON LTD 78,545 98,000 0.02 6.875 2/1/2027MML Total Return Bond Fund FIXED INCOME MAGNETITE CLO LTD 199,429 200,000 0.05 1.55175 4/20/2030MML Total Return Bond Fund FIXED INCOME AVOLON HOLDINGS FNDG LTD 35,122 35,000 0.01 5.25 5/15/2024MML Total Return Bond Fund FIXED INCOME GOVERNMENT NATIONAL MORTGAGE A 635,539 597,171 0.17 3.5 2/20/2049MML Total Return Bond Fund FIXED INCOME LLOYDS BANKING GROUP PLC 434,608 400,000 0.11 3.9 3/12/2024MML Total Return Bond Fund FIXED INCOME CALI MORTGAGE TRUST 2019 101C 486,529 415,000 0.13 3.957 3/10/2039MML Total Return Bond Fund FIXED INCOME SS+C TECHNOLOGIES INC 146,655 138,000 0.04 5.5 9/30/2027MML Total Return Bond Fund FIXED INCOME ENERGY TRANSFER OPERATNG 279,676 254,000 0.07 5.5 6/1/2027MML Total Return Bond Fund FIXED INCOME ROCKIES EXPRESS PIPELINE 194,250 200,000 0.05 4.95 7/15/2029MML Total Return Bond Fund FIXED INCOME SAUDI ARABIAN OIL CO 229,897 200,000 0.06 4.25 4/16/2039MML Total Return Bond Fund FIXED INCOME AVOLON HOLDINGS FNDG LTD 123,395 130,000 0.03 3.95 7/1/2024MML Total Return Bond Fund FIXED INCOME NATIONWIDE BLDG SOCIETY 280,534 270,000 0.07 3.622 4/26/2023MML Total Return Bond Fund FIXED INCOME FED HM LN PC POOL ZA5103 14,665 13,846 0.00 3.5 12/1/2047MML Total Return Bond Fund FIXED INCOME VIRGIN MEDIA SECURED FIN 273,730 255,000 0.07 5.5 5/15/2029

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Total Return Bond Fund FIXED INCOME CCO HLDGS LLC/CAP CORP 158,228 146,000 0.04 5.375 6/1/2029MML Total Return Bond Fund FIXED INCOME ANHEUSER BUSCH CO/INBEV 1,085,066 880,000 0.29 4.9 2/1/2046MML Total Return Bond Fund FIXED INCOME PANTHER BF AGGREGATOR 2 LP 48,275 49,624 0.01 0 4/30/2026MML Total Return Bond Fund FIXED INCOME FNMA POOL BL2360 950,473 780,000 0.25 3.45 5/1/2034MML Total Return Bond Fund FIXED INCOME JP MORGAN CHASE COMMERCIAL MOR 436,001 385,000 0.11 3.3973 6/5/2039MML Total Return Bond Fund FIXED INCOME HCA INC 279,119 230,000 0.07 5.125 6/15/2039MML Total Return Bond Fund FIXED INCOME HCA INC 642,674 525,000 0.17 5.25 6/15/2049MML Total Return Bond Fund FIXED INCOME VODAFONE GROUP PLC 1,306,147 1,052,000 0.34 4.875 6/19/2049MML Total Return Bond Fund FIXED INCOME HUDSON YARDS 431,824 385,000 0.11 3.228 7/10/2039MML Total Return Bond Fund FIXED INCOME GNMA II POOL MA6209 1,353,783 1,319,390 0.36 3 10/20/2049MML Total Return Bond Fund FIXED INCOME REPUBLIC OF PANAMA 217,502 200,000 0.06 3.16 1/23/2030MML Total Return Bond Fund FIXED INCOME TRIVIUM PACKAGING FIN 31,064 30,000 0.01 5.5 8/15/2026MML Total Return Bond Fund FIXED INCOME JBS USA/FOOD/FINANCE 38,096 35,000 0.01 5.5 1/15/2030MML Total Return Bond Fund FIXED INCOME TENET HEALTHCARE CORP 351,265 345,000 0.09 4.875 1/1/2026MML Total Return Bond Fund FIXED INCOME CIGNA CORP 917,732 800,000 0.24 4.125 11/15/2025MML Total Return Bond Fund FIXED INCOME GLP CAPITAL LP / FIN II 36,225 35,000 0.01 4 1/15/2030MML Total Return Bond Fund FIXED INCOME FNMA POOL MA3811 1,170,028 1,136,628 0.31 3 10/1/2049MML Total Return Bond Fund FIXED INCOME KRAFT HEINZ FOODS CO 1,804,593 1,710,000 0.48 4.875 10/1/2049MML Total Return Bond Fund FIXED INCOME PETROLEOS MEXICANOS 96,255 115,000 0.03 7.69 1/23/2050MML Total Return Bond Fund FIXED INCOME MAGNETITE CLO LTD 991,519 1,000,000 0.26 1.075 1/15/2028MML Total Return Bond Fund FIXED INCOME TRANSMONTAIGE PARTNERS 83,835 81,000 0.02 6.125 2/15/2026MML Total Return Bond Fund FIXED INCOME VICI PPTYS 1 LLC 48,245 50,000 0.01 0 12/20/2024MML Total Return Bond Fund FIXED INCOME RUSSIAN FEDERATION 229,202 200,000 0.06 4.75 5/27/2026MML Total Return Bond Fund FIXED INCOME DELOS FIN S A R L 776,693 796,200 0.20 0 10/6/2023MML Total Return Bond Fund FIXED INCOME FED HM LN PC POOL G67708 402,481 372,203 0.11 3.5 3/1/2048MML Total Return Bond Fund FIXED INCOME GNMA II POOL MA5078 936,024 870,637 0.25 4 3/20/2048MML Total Return Bond Fund FIXED INCOME FORD MOTOR CREDIT CO LLC 256,199 260,000 0.07 1.11375 4/5/2021MML Total Return Bond Fund FIXED INCOME CVS HEALTH CORP 1,761,444 1,380,000 0.46 5.05 3/25/2048MML Total Return Bond Fund FIXED INCOME FED HM LN PC POOL G08816 1,041,745 985,921 0.27 3.5 6/1/2048MML Total Return Bond Fund FIXED INCOME SAUDI INTERNATIONAL BOND 216,440 200,000 0.06 3.75 1/21/2055MML Total Return Bond Fund FIXED INCOME ALIMENTATION COUCHE TARD 43,964 40,000 0.01 3.8 1/25/2050MML Total Return Bond Fund FIXED INCOME DOMINICAN REPUBLIC 196,500 200,000 0.05 4.5 1/30/2030MML Total Return Bond Fund FIXED INCOME CENTENE CORP 164,172 155,000 0.04 5.375 8/15/2026MML Total Return Bond Fund FIXED INCOME NATIXIS COMMERCIAL MORTGAGE SE 387,205 375,000 0.10 2.966 12/15/2038MML Total Return Bond Fund FIXED INCOME TRANSDIGM INC 46,828 49,625 0.01 0 5/30/2025MML Total Return Bond Fund FIXED INCOME CCO HLDGS LLC/CAP CORP 262,511 250,000 0.07 4.5 8/15/2030MML Total Return Bond Fund FIXED INCOME MKT 2020 525M MORTGAGE TRUST 492,405 465,000 0.13 2.694 2/12/2040MML Total Return Bond Fund FIXED INCOME PT PERTAMINA (PERSERO) 412,059 400,000 0.11 3.1 8/27/2030MML Total Return Bond Fund FIXED INCOME BP CAP MARKETS AMERICA 77,007 80,000 0.02 3 2/24/2050MML Total Return Bond Fund FIXED INCOME MASSACHUSETTS ST 587,378 550,000 0.15 3 3/1/2049MML Total Return Bond Fund FIXED INCOME TSY INFL IX N/B 1,374,370 1,162,770 0.36 0.25 2/15/2050MML Total Return Bond Fund FIXED INCOME UNIV OF CALIFORNIA CA RGTS MED 1,036,184 950,000 0.27 3.256 5/15/2060MML Total Return Bond Fund FIXED INCOME CIGNA CORP 423,984 405,000 0.11 3.4 3/15/2050MML Total Return Bond Fund FIXED INCOME CCO HLDGS LLC/CAP CORP 203,531 195,000 0.05 4.5 5/1/2032MML Total Return Bond Fund FIXED INCOME STARBUCKS CORP 389,454 375,000 0.10 2.25 3/12/2030MML Total Return Bond Fund FIXED INCOME BANK OF AMERICA CORP 650,129 525,000 0.17 4.083 3/20/2051MML Total Return Bond Fund FIXED INCOME REYNOLDS AMERICAN INC 382,771 315,000 0.10 5.85 8/15/2045MML Total Return Bond Fund FIXED INCOME SPRINT SPECTRUM / SPEC I 1,135,313 1,050,000 0.30 4.738 9/20/2029

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Total Return Bond Fund FIXED INCOME FED HM LN PC POOL G67710 2,238,189 2,081,848 0.59 3.5 3/1/2048MML Total Return Bond Fund FIXED INCOME FED HM LN PC POOL G67711 1,481,422 1,345,857 0.39 4 3/1/2048MML Total Return Bond Fund FIXED INCOME STATE OF QATAR 239,000 200,000 0.06 4.5 4/23/2028MML Total Return Bond Fund FIXED INCOME BACARDI LTD 162,943 130,000 0.04 5.3 5/15/2048MML Total Return Bond Fund FIXED INCOME BACARDI LTD 185,940 160,000 0.05 4.7 5/15/2028MML Total Return Bond Fund FIXED INCOME FNMA POOL CA1710 1,422,157 1,313,436 0.37 4.5 5/1/2048MML Total Return Bond Fund FIXED INCOME FNMA POOL CA1711 472,314 436,206 0.12 4.5 5/1/2048MML Total Return Bond Fund FIXED INCOME GLP CAPITAL LP / FIN II 249,739 230,000 0.07 5.25 6/1/2025MML Total Return Bond Fund FIXED INCOME FED HM LN PC POOL G67713 7,001 6,424 0.00 4 6/1/2048MML Total Return Bond Fund FIXED INCOME FED HM LN PC POOL G08833 329,900 300,599 0.09 5 7/1/2048MML Total Return Bond Fund FIXED INCOME FANNIE MAE 952,890 900,656 0.25 3 6/25/2048MML Total Return Bond Fund FIXED INCOME GNMA II POOL MA5466 1,000,950 936,198 0.26 4 9/20/2048MML Total Return Bond Fund FIXED INCOME GNMA II POOL MA5399 1,977,658 1,828,591 0.52 4.5 8/20/2048MML Total Return Bond Fund FIXED INCOME ENERGY TRANSFER OPERATNG 317,886 300,000 0.08 4.95 6/15/2028MML Total Return Bond Fund FIXED INCOME BAYER US FINANCE II LLC 757,693 635,000 0.20 4.625 6/25/2038MML Total Return Bond Fund FIXED INCOME BAYER US FINANCE II LLC 998,063 850,000 0.26 4.375 12/15/2028MML Total Return Bond Fund FIXED INCOME BAYER US FINANCE II LLC 205,889 180,000 0.05 4.25 12/15/2025MML Total Return Bond Fund FIXED INCOME BAYER US FINANCE II LLC 626,637 505,000 0.17 4.875 6/25/2048MML Total Return Bond Fund FIXED INCOME NAVIENT STUDENT LOAN TRUST 623,774 630,000 0.16 0.94813 3/25/2067MML Total Return Bond Fund FIXED INCOME TRANSOCEAN GUARDIAN LTD 76,471 118,560 0.02 5.875 1/15/2024MML Total Return Bond Fund FIXED INCOME FED HM LN PC POOL G08843 468,708 433,515 0.12 4.5 10/1/2048MML Total Return Bond Fund FIXED INCOME INDYMAC INDX MORTGAGE LOAN TRU 1,010,004 1,635,511 0.27 0.41813 10/25/2036MML Total Return Bond Fund FIXED INCOME FNMA POOL AM2808 391,659 375,000 0.10 2.7 3/1/2023MML Total Return Bond Fund FIXED INCOME NELNET STUDENT LOAN TRUST 898,476 959,132 0.24 0.73813 4/25/2046MML Total Return Bond Fund FIXED INCOME FNMA POOL FN0039 722,045 642,744 0.19 3.182 9/1/2027MML Total Return Bond Fund FIXED INCOME GNMA II POOL MA4199 214,886 188,374 0.06 5 1/20/2047MML Total Return Bond Fund FIXED INCOME FREDDIE MAC 526,115 497,088 0.14 3 4/15/2048MML Total Return Bond Fund FIXED INCOME FREDDIE MAC 593,333 556,025 0.16 4 6/15/2047MML Total Return Bond Fund FIXED INCOME TC PIPELINES LP 535,913 500,000 0.14 3.9 5/25/2027MML Total Return Bond Fund FIXED INCOME CANADIAN NATL RESOURCES 184,118 171,000 0.05 3.85 6/1/2027MML Total Return Bond Fund FIXED INCOME SBA COMMUNICATIONS CORP 100,440 98,000 0.03 4.875 9/1/2024MML Total Return Bond Fund FIXED INCOME AMERICAN AIRLS INC 36,282 50,000 0.01 0 1/29/2027MML Total Return Bond Fund FIXED INCOME FNMA POOL AS9830 554,337 515,887 0.15 4 6/1/2047MML Total Return Bond Fund FIXED INCOME PETROLEOS DEL PERU SA 216,600 200,000 0.06 4.75 6/19/2032MML Total Return Bond Fund FIXED INCOME INTELSAT JACKSON HLDG 383,175 585,000 0.10 9.75 7/15/2025MML Total Return Bond Fund FIXED INCOME SABINE PASS LIQUEFACTION 434,362 400,000 0.11 4.2 3/15/2028MML Total Return Bond Fund FIXED INCOME GENERAL MOTORS FINL CO 564,988 550,000 0.15 3.15 6/30/2022MML Total Return Bond Fund FIXED INCOME FNMA POOL AS9972 511,355 476,857 0.13 4 7/1/2047MML Total Return Bond Fund FIXED INCOME ALIMENTATION COUCHE TARD 201,117 195,000 0.05 2.7 7/26/2022MML Total Return Bond Fund FIXED INCOME ANTERO RESOURCES CORP 227,500 364,000 0.06 5 3/1/2025MML Total Return Bond Fund FIXED INCOME GNMA II POOL MA4653 126,190 117,170 0.03 4 8/20/2047MML Total Return Bond Fund FIXED INCOME GULFPORT ENERGY CORP 28,670 47,000 0.01 6.375 5/15/2025MML Total Return Bond Fund FIXED INCOME GNMA II POOL MA4718 184,366 175,565 0.05 3 9/20/2047MML Total Return Bond Fund FIXED INCOME GNMA II POOL MA4722 476,050 431,744 0.13 5 9/20/2047MML Total Return Bond Fund FIXED INCOME GNMA II POOL MA4719 332,904 312,027 0.09 3.5 9/20/2047MML Total Return Bond Fund FIXED INCOME PARK AEROSPACE HOLDINGS 317,104 320,000 0.08 4.5 3/15/2023MML Total Return Bond Fund FIXED INCOME SUNOCO LOGISTICS PARTNER 372,002 394,000 0.10 5.4 10/1/2047MML Total Return Bond Fund FIXED INCOME GOLDMAN SACHS GROUP INC 925,442 855,000 0.24 3.272 9/29/2025

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Total Return Bond Fund FIXED INCOME PILGRIM S PRIDE CORP 30,975 30,000 0.01 5.875 9/30/2027MML Total Return Bond Fund FIXED INCOME EQT CORP 101,269 110,000 0.03 3.9 10/1/2027MML Total Return Bond Fund FIXED INCOME BAUSCH HEALTH COS INC 127,255 124,000 0.03 5.5 11/1/2025MML Total Return Bond Fund FIXED INCOME SL GREEN OPERATING PARTN 510,202 500,000 0.13 3.25 10/15/2022MML Total Return Bond Fund FIXED INCOME GNMA II POOL MA4837 676,908 635,388 0.18 3.5 11/20/2047MML Total Return Bond Fund FIXED INCOME GNMA II POOL MA4836 686,335 654,545 0.18 3 11/20/2047MML Total Return Bond Fund FIXED INCOME GNMA II POOL MA4838 556,482 516,708 0.15 4 11/20/2047MML Total Return Bond Fund FIXED INCOME FED HM LN PC POOL G08800 112,751 106,552 0.03 3.5 2/1/2048MML Total Return Bond Fund FIXED INCOME FED HM LN PC POOL G67706 1,545,129 1,413,775 0.41 3.5 12/1/2047MML Total Return Bond Fund FIXED INCOME GNMA II POOL MA4901 240,308 223,521 0.06 4 12/20/2047MML Total Return Bond Fund FIXED INCOME GNMA II POOL MA4900 2,448,007 2,297,854 0.64 3.5 12/20/2047MML Total Return Bond Fund FIXED INCOME IHS MARKIT LTD 282,095 253,000 0.07 4 3/1/2026MML Total Return Bond Fund FIXED INCOME CHARTER COMM OPT LLC/CAP 101,716 92,000 0.03 3.75 2/15/2028MML Total Return Bond Fund FIXED INCOME MATTHEWS INTERNATIONAL C 113,400 120,000 0.03 5.25 12/1/2025MML Total Return Bond Fund FIXED INCOME NOBLE ENERGY INC 185,610 140,000 0.05 5.25 11/15/2043MML Total Return Bond Fund FIXED INCOME FNMA POOL CA0996 295,931 273,832 0.08 3.5 1/1/2048MML Total Return Bond Fund FIXED INCOME SANTANDER UK GROUP HLDGS 673,500 645,000 0.18 3.373 1/5/2024MML Total Return Bond Fund FIXED INCOME CSC HOLDINGS LLC 31,688 30,000 0.01 5.375 2/1/2028MML Total Return Bond Fund FIXED INCOME HOLOGIC INC 168,061 160,000 0.04 4.625 2/1/2028MML Total Return Bond Fund FIXED INCOME FED HM LN PC POOL G67707 3,803,278 3,443,403 1.00 3.5 1/1/2048MML Total Return Bond Fund FIXED INCOME T MOBILE USA INC 127,299 119,000 0.03 4.75 2/1/2028MML Total Return Bond Fund FIXED INCOME T MOBILE USA INC 107,162 104,000 0.03 4.5 2/1/2026MML Total Return Bond Fund FIXED INCOME FNMA POOL MA3305 84,046 79,447 0.02 3.5 3/1/2048MML Total Return Bond Fund FIXED INCOME BROADCOM CRP / CAYMN FI 532,393 495,000 0.14 3.625 1/15/2024MML Total Return Bond Fund FIXED INCOME WASTE PRO USA INC 137,631 136,000 0.04 5.5 2/15/2026MML Total Return Bond Fund FIXED INCOME FED HM LN PC POOL G67700 1,114,392 1,016,459 0.29 3.5 8/1/2046MML Total Return Bond Fund FIXED INCOME MOLINA HEALTHCARE INC 235,125 225,000 0.06 5.375 11/15/2022MML Total Return Bond Fund FIXED INCOME GNMA II POOL MA3937 239,676 223,272 0.06 3.5 9/20/2046MML Total Return Bond Fund FIXED INCOME FED HM LN PC POOL G08732 704,168 670,295 0.19 3 11/1/2046MML Total Return Bond Fund FIXED INCOME REPUBLIC OF SOUTH AFRICA 232,860 250,000 0.06 4.3 10/12/2028MML Total Return Bond Fund FIXED INCOME SPRINT SPECTRUM / SPEC I 291,984 288,750 0.08 3.36 3/20/2023MML Total Return Bond Fund FIXED INCOME FED HM LN PC POOL G08741 1,824,944 1,739,747 0.48 3 1/1/2047MML Total Return Bond Fund FIXED INCOME FED HM LN PC POOL G08742 1,008,259 948,619 0.27 3.5 1/1/2047MML Total Return Bond Fund FIXED INCOME FED HM LN PC POOL G18627 1,147,696 1,087,885 0.30 3 1/1/2032MML Total Return Bond Fund FIXED INCOME FED HM LN PC POOL V61427 317,335 299,581 0.08 2.5 12/1/2031MML Total Return Bond Fund FIXED INCOME CHARTER COMM OPT LLC/CAP 268,251 200,000 0.07 6.484 10/23/2045MML Total Return Bond Fund FIXED INCOME GNMA II POOL MA4126 1,598,435 1,520,773 0.42 3 12/20/2046MML Total Return Bond Fund FIXED INCOME GNMA II POOL MA4127 815,792 761,288 0.21 3.5 12/20/2046MML Total Return Bond Fund FIXED INCOME CHARTER COMM OPT LLC/CAP 578,111 500,000 0.15 4.908 7/23/2025MML Total Return Bond Fund FIXED INCOME TRANSOCEAN PROTEUS LTD 48,150 53,950 0.01 6.25 12/1/2024MML Total Return Bond Fund FIXED INCOME AT+T INC 51,643 45,000 0.01 4.5 3/9/2048MML Total Return Bond Fund FIXED INCOME PARK AEROSPACE HOLDINGS 95,384 95,000 0.03 5.25 8/15/2022MML Total Return Bond Fund FIXED INCOME PARK AEROSPACE HOLDINGS 292,211 290,000 0.08 5.5 2/15/2024MML Total Return Bond Fund FIXED INCOME GNMA II POOL MA4262 919,838 859,887 0.24 3.5 2/20/2047MML Total Return Bond Fund FIXED INCOME AT+T INC 337,587 270,000 0.09 5.25 3/1/2037MML Total Return Bond Fund FIXED INCOME FED HM LN PC POOL G08757 303,886 285,911 0.08 3.5 4/1/2047MML Total Return Bond Fund FIXED INCOME MGM GROWTH/MGM FINANCE 106,028 100,000 0.03 5.625 5/1/2024MML Total Return Bond Fund FIXED INCOME CHANGE HEALTH / FIN INC 146,059 144,000 0.04 5.75 3/1/2025

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Total Return Bond Fund FIXED INCOME CHANGE HEALTHCARE HLDGS INC 48,241 49,344 0.01 0 3/1/2024MML Total Return Bond Fund FIXED INCOME BAUSCH HEALTH COS INC 207,000 200,000 0.05 7 3/15/2024MML Total Return Bond Fund FIXED INCOME MAUSER PACKAGING SOLUT 30,106 30,000 0.01 5.5 4/15/2024MML Total Return Bond Fund FIXED INCOME GNMA II POOL MA4382 249,866 233,580 0.07 3.5 4/20/2047MML Total Return Bond Fund FIXED INCOME FNMA POOL MA3027 624,422 583,657 0.16 4 6/1/2047MML Total Return Bond Fund FIXED INCOME AEP TRANSMISSION CO LLC 962,149 855,000 0.25 3.1 12/1/2026MML Total Return Bond Fund FIXED INCOME FED HM LN PC POOL G67703 1,626,261 1,485,886 0.43 3.5 4/1/2047MML Total Return Bond Fund FIXED INCOME GNMA II POOL MA4454 377,523 340,457 0.10 5 5/20/2047MML Total Return Bond Fund FIXED INCOME FHLMC MULTIFAMILY STRUCTURED P 1,991,215 1,775,000 0.52 3.291 3/25/2027MML Total Return Bond Fund FIXED INCOME RBSCF TRUST 167,046 160,000 0.04 3.961387 1/15/2032MML Total Return Bond Fund FIXED INCOME HCA INC 724,846 647,000 0.19 5 3/15/2024MML Total Return Bond Fund FIXED INCOME AT+T INC 1,549,365 1,300,000 0.41 4.8 6/15/2044MML Total Return Bond Fund FIXED INCOME T MOBILE USA INC 206,536 206,000 0.05 6 3/1/2023MML Total Return Bond Fund FIXED INCOME GENERAL MOTORS FINL CO 87,692 85,000 0.02 4.375 9/25/2021MML Total Return Bond Fund FIXED INCOME FARMERS EXCHANGE CAP III 1,172,803 970,000 0.31 5.454 10/15/2054MML Total Return Bond Fund FIXED INCOME FED HM LN PC POOL G07848 2,139,999 1,920,662 0.56 3.5 4/1/2044MML Total Return Bond Fund FIXED INCOME WALGREENS BOOTS ALLIANCE 440,511 400,000 0.12 3.8 11/18/2024MML Total Return Bond Fund FIXED INCOME WALGREENS BOOTS ALLIANCE 300,941 275,000 0.08 4.8 11/18/2044MML Total Return Bond Fund FIXED INCOME SPRINT CORP 37,909 33,000 0.01 7.875 9/15/2023MML Total Return Bond Fund FIXED INCOME SUNOCO LOGISTICS PARTNER 46,531 50,000 0.01 5.35 5/15/2045MML Total Return Bond Fund FIXED INCOME SABINE PASS LIQUEFACTION 328,419 290,000 0.09 5.75 5/15/2024MML Total Return Bond Fund FIXED INCOME FORD MOTOR CREDIT CO LLC 99,870 100,000 0.03 3.219 1/9/2022MML Total Return Bond Fund FIXED INCOME VENTAS REALTY LP 1,620,535 1,500,000 0.43 3.5 2/1/2025MML Total Return Bond Fund FIXED INCOME BAUSCH HEALTH COS INC 20,921 21,000 0.01 5.5 3/1/2023MML Total Return Bond Fund FIXED INCOME FNMA POOL AB4262 489,244 453,760 0.13 3.5 1/1/2032MML Total Return Bond Fund FIXED INCOME ANTERO RESOURCES CORP 143,440 176,000 0.04 5.125 12/1/2022MML Total Return Bond Fund FIXED INCOME ENERGY TRANSFER OPERATNG 362,158 400,000 0.10 5.15 3/15/2045MML Total Return Bond Fund FIXED INCOME GENERAL MOTORS FINL CO 107,953 105,000 0.03 3.45 4/10/2022MML Total Return Bond Fund FIXED INCOME AT+T INC 364,177 310,000 0.10 4.75 5/15/2046MML Total Return Bond Fund FIXED INCOME AMGEN INC 328,307 265,000 0.09 4.4 5/1/2045MML Total Return Bond Fund FIXED INCOME SEALED AIR CORP 209,950 190,000 0.06 5.5 9/15/2025MML Total Return Bond Fund FIXED INCOME CVS HEALTH CORP 25,270 20,000 0.01 5.125 7/20/2045MML Total Return Bond Fund FIXED INCOME ACCESS GROUP INC 515,504 526,419 0.14 0.84813 7/25/2056MML Total Return Bond Fund FIXED INCOME AERCAP IRELAND CAP/GLOBA 499,336 490,000 0.13 4.5 5/15/2021MML Total Return Bond Fund FIXED INCOME PLAINS ALL AMER PIPELINE 321,982 300,000 0.08 4.65 10/15/2025MML Total Return Bond Fund FIXED INCOME REPUBLICA ORIENT URUGUAY 178,360 154,423 0.05 4.375 10/27/2027MML Total Return Bond Fund FIXED INCOME FED HM LN PC POOL G60344 1,277,459 1,154,658 0.34 4 12/1/2045MML Total Return Bond Fund FIXED INCOME LEVEL 3 FINANCING INC 153,620 149,000 0.04 5.375 5/1/2025MML Total Return Bond Fund FIXED INCOME SPECTRUM BRANDS INC 252,595 245,000 0.07 5.75 7/15/2025MML Total Return Bond Fund FIXED INCOME APPLE INC 1,186,356 850,000 0.31 4.65 2/23/2046MML Total Return Bond Fund FIXED INCOME GNMA II POOL MA3521 635,407 590,544 0.17 3.5 3/20/2046MML Total Return Bond Fund FIXED INCOME FED HM LN PC POOL G18592 390,871 370,392 0.10 3 3/1/2031MML Total Return Bond Fund FIXED INCOME ANTERO RESOURCES CORP 36,250 50,000 0.01 5.625 6/1/2023MML Total Return Bond Fund FIXED INCOME REPUBLIC OF PANAMA 226,702 200,000 0.06 3.875 3/17/2028MML Total Return Bond Fund FIXED INCOME FORD MOTOR CREDIT CO LLC 65,016 65,000 0.02 3.336 3/18/2021MML Total Return Bond Fund FIXED INCOME HARBORVIEW MORTGAGE LOAN TRUST 1,384,172 1,644,043 0.36 0.35625 11/19/2036MML Total Return Bond Fund FIXED INCOME FNMA TBA 15 YR 1.5 1,713,734 1,675,000 0.45 1.5 10/19/2035MML Total Return Bond Fund FIXED INCOME FNMA TBA 30 YR 2 18,018,539 17,425,000 4.75 2 10/14/2050

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Total Return Bond Fund FIXED INCOME GNMA II TBA 30 YR 2 5,402,719 5,200,000 1.42 2 10/21/2050MML Total Return Bond Fund FIXED INCOME GNMA II POOL MA3597 198,007 184,027 0.05 3.5 4/20/2046MML Total Return Bond Fund FIXED INCOME T MOBILE USA INC 124,555 122,000 0.03 6 4/15/2024MML Total Return Bond Fund FIXED INCOME RANGE RESOURCES CORP 59,572 66,000 0.02 4.875 5/15/2025MML Total Return Bond Fund FIXED INCOME GLP CAPITAL LP / FIN II 770,269 695,000 0.20 5.375 4/15/2026MML Total Return Bond Fund FIXED INCOME GNMA II POOL MA3663 294,624 273,821 0.08 3.5 5/20/2046MML Total Return Bond Fund FIXED INCOME GNMA II POOL MA3666 198,115 173,767 0.05 5 5/20/2046MML Total Return Bond Fund FIXED INCOME FED HM LN PC POOL G08710 267,359 254,347 0.07 3 6/1/2046MML Total Return Bond Fund FIXED INCOME FED HM LN PC POOL G08711 949,629 888,493 0.25 3.5 6/1/2046MML Total Return Bond Fund FIXED INCOME ABBVIE INC 46,445 39,000 0.01 4.45 5/14/2046MML Total Return Bond Fund FIXED INCOME INTEL CORP 312,032 250,000 0.08 4.1 5/19/2046MML Total Return Bond Fund FIXED INCOME FED HM LN PC POOL G08716 1,340,636 1,256,164 0.35 3.5 8/1/2046MML Total Return Bond Fund FIXED INCOME DELL INT LLC / EMC CORP 67,560 66,000 0.02 4.42 6/15/2021MML Total Return Bond Fund FIXED INCOME MPH ACQUISITION HLDGS LLC 49,143 50,000 0.01 0 6/7/2023MML Total Return Bond Fund FIXED INCOME JPMORGAN CHASE + CO 394,048 355,000 0.10 3.2 6/15/2026MML Total Return Bond Fund FIXED INCOME AETNA INC 511,096 485,000 0.13 2.8 6/15/2023MML Total Return Bond Fund FIXED INCOME GE CAPITAL INTL FUNDING 1,435,560 1,360,000 0.38 4.418 11/15/2035MML Total Return Bond Fund FIXED INCOME GENERAL MOTORS FINL CO 619,231 610,000 0.16 3.2 7/6/2021MML Total Return Bond Fund FIXED INCOME FED HM LN PC POOL G08722 229,557 215,093 0.06 3.5 9/1/2046MML Total Return Bond Fund FIXED INCOME RAYMOND JAMES FINANCIAL 504,383 390,000 0.13 4.95 7/15/2046MML Total Return Bond Fund FIXED INCOME JPMORGAN CHASE + CO 984,920 895,000 0.26 2.95 10/1/2026MML Total Return Bond Fund FIXED INCOME KRAFT HEINZ FOODS CO 41,097 40,000 0.01 4.375 6/1/2046MML Total Return Bond Fund FIXED INCOME FED HM LN PC POOL G08726 1,961,734 1,867,369 0.52 3 10/1/2046MML Total Return Bond Fund FIXED INCOME GRAPHIC PACKAGING INTERN 209,500 200,000 0.06 4.125 8/15/2024MML Total Return Bond Fund FIXED INCOME FNMA POOL MA1607 546,361 515,887 0.14 3 10/1/2033MML Total Return Bond Fund FIXED INCOME GNMA II TBA 30 YR 2.5 3,989,703 3,800,000 1.05 2.5 10/21/2050MML Total Return Bond Fund FIXED INCOME MIDAMERICAN ENERGY CO 1,876,372 1,400,000 0.49 4.8 9/15/2043MML Total Return Bond Fund FIXED INCOME SLM STUDENT LOAN TRUST 1,407,110 1,430,000 0.37 2.4945 10/25/2083MML Total Return Bond Fund FIXED INCOME SANTANDER UK PLC 474,389 435,000 0.12 5 11/7/2023MML Total Return Bond Fund FIXED INCOME HEALTHPEAK PROPERTIES 13,101 12,000 0.00 4.25 11/15/2023MML Short-Duration Bond Fund FIXED INCOME CUBESMART LP 343,934 313,000 0.17 4.375 12/15/2023MML Short-Duration Bond Fund FIXED INCOME NELNET STUDENT LOAN TRUST 253,585 270,000 0.13 1.64813 10/25/2047MML Short-Duration Bond Fund FIXED INCOME HSBC HOLDINGS PLC 927,595 865,000 0.46 4.25 3/14/2024MML Short-Duration Bond Fund FIXED INCOME ENLINK MIDSTREAM PARTNER 441,000 490,000 0.22 4.4 4/1/2024MML Short-Duration Bond Fund FIXED INCOME AMTRUST FINANCIAL SERVIC 574,863 620,000 0.28 6.125 8/15/2023MML Short-Duration Bond Fund FIXED INCOME ESSEX PORTFOLIO LP 185,871 170,000 0.09 3.875 5/1/2024MML Short-Duration Bond Fund FIXED INCOME AMER AIRLN 14 1 B PTT 14,436 20,383 0.01 4.375 4/1/2024MML Short-Duration Bond Fund FIXED INCOME SBA TOWER TRUST 452,747 430,000 0.22 3.869 10/15/2049MML Short-Duration Bond Fund FIXED INCOME VEREIT OPERATING PARTNER 611,496 570,000 0.30 4.6 2/6/2024MML Short-Duration Bond Fund FUTURE 90DAY EUR FUTR MAR22 - (750,000) - 0 3/14/2022MML Short-Duration Bond Fund FIXED INCOME KINROSS GOLD CORP 627,268 550,000 0.31 5.95 3/15/2024MML Short-Duration Bond Fund FIXED INCOME LAZARD GROUP LLC 872,591 805,000 0.43 3.75 2/13/2025MML Short-Duration Bond Fund FIXED INCOME COMM MORTGAGE TRUST 518,460 480,000 0.26 3.724 2/10/2048MML Short-Duration Bond Fund FIXED INCOME ESSEX PORTFOLIO LP 142,789 130,000 0.07 3.5 4/1/2025MML Short-Duration Bond Fund FUTURE 90DAY EUR FUTR DEC20 - (500,000) 0.00 0 12/14/2020MML Short-Duration Bond Fund FIXED INCOME HERO FUNDING TRUST 370,833 352,702 0.18 3.84 9/21/2040MML Short-Duration Bond Fund FIXED INCOME TRIP RAIL MASTER FUNDING LLC 49,786 49,742 0.02 2.709 8/15/2047MML Short-Duration Bond Fund FIXED INCOME DRB PRIME STUDENT LOAN TRUST 164,297 172,101 0.08 3.61 8/25/2042

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Short-Duration Bond Fund FIXED INCOME BLACKROCK TCP CAP CORP 684,607 675,000 0.34 4.125 8/11/2022MML Short-Duration Bond Fund FIXED INCOME EQT CORP 551,581 565,000 0.27 3 10/1/2022MML Short-Duration Bond Fund FIXED INCOME HERCULES CAPITAL INC 617,500 610,000 0.31 4.625 10/23/2022MML Short-Duration Bond Fund FIXED INCOME HERO FUNDING TRUST 175,468 170,261 0.09 3.19 9/20/2048MML Short-Duration Bond Fund FIXED INCOME KDAC AVIATION FINANCE LIMITED 167,285 190,448 0.08 4.212 12/15/2042MML Short-Duration Bond Fund FIXED INCOME EDLINC STUDENT LOAN FUNDING TR 334,982 338,987 0.17 3.6 12/1/2047MML Short-Duration Bond Fund FIXED INCOME GENERAL MOTORS FINL CO 1,002,483 970,000 0.50 3.25 1/5/2023MML Short-Duration Bond Fund FIXED INCOME SLM STUDENT LOAN TRUST 435,199 488,442 0.22 0.5345 1/25/2044MML Short-Duration Bond Fund FIXED INCOME SLM STUDENT LOAN TRUST 128,296 144,310 0.06 0.5545 1/25/2055MML Short-Duration Bond Fund FIXED INCOME FNMA POOL 888586 15,254 14,475 0.01 3.326 10/1/2034MML Short-Duration Bond Fund FIXED INCOME FNMA POOL 725692 12,070 11,523 0.01 3.138 10/1/2033MML Short-Duration Bond Fund FIXED INCOME GNMA POOL 499410 242 210 0.00 7 7/15/2029MML Short-Duration Bond Fund FIXED INCOME ABN AMRO BANK NV 489,854 435,000 0.24 4.75 7/28/2025MML Short-Duration Bond Fund FUTURE 90DAY EUR FUTR MAR21 - (500,000) 0.00 0 3/15/2021MML Short-Duration Bond Fund FIXED INCOME UBS GROUP AG 404,374 355,000 0.20 4.125 9/24/2025MML Short-Duration Bond Fund FIXED INCOME SIERRA RECEIVABLES FUNDING CO 10,139 10,149 0.01 3.08 9/20/2032MML Short-Duration Bond Fund FIXED INCOME GOLDMAN SACHS GROUP INC 2,099,059 1,845,000 1.04 4.25 10/21/2025MML Short-Duration Bond Fund FIXED INCOME FIRST HORIZON NATIONAL 521,767 520,000 0.26 3.5 12/15/2020MML Short-Duration Bond Fund FIXED INCOME BUNGE LTD FINANCE CORP 934,071 930,000 0.46 3.5 11/24/2020MML Short-Duration Bond Fund FIXED INCOME BANK OF NOVA SCOTIA 486,521 420,000 0.24 4.5 12/16/2025MML Short-Duration Bond Fund FUTURE 90DAY EUR FUTR SEP21 - (750,000) 0.00 0 9/13/2021MML Short-Duration Bond Fund FIXED INCOME TRINITY ACQUISITION PLC 614,788 600,000 0.30 3.5 9/15/2021MML Short-Duration Bond Fund FIXED INCOME NEWELL BRANDS INC 1,023,329 979,000 0.51 4.35 4/1/2023MML Short-Duration Bond Fund FUTURE 90DAY EUR FUTR MAR23 - (500,000) 0.00 0 3/13/2023MML Short-Duration Bond Fund FUTURE 90DAY EUR FUTR DEC24 - (1,750,000) 0.00 0 12/16/2024MML Short-Duration Bond Fund FIXED INCOME AIRCASTLE LTD 1,012,276 1,010,000 0.50 5 4/1/2023MML Short-Duration Bond Fund FIXED INCOME HUNTSMAN INTERNATIONAL L 769,913 716,000 0.38 5.125 11/15/2022MML Short-Duration Bond Fund FUTURE 90DAY EUR FUTR DEC23 - (750,000) 0.00 0 12/18/2023MML Short-Duration Bond Fund FUTURE 90DAY EUR FUTR SEP22 - (750,000) - 0 9/19/2022MML Short-Duration Bond Fund FIXED INCOME GNMA POOL 371146 32 31 0.00 7 9/15/2023MML Short-Duration Bond Fund FIXED INCOME FNMA POOL 532819 31 26 0.00 8 3/1/2030MML Short-Duration Bond Fund FIXED INCOME FNMA POOL 534703 516 443 0.00 8 5/1/2030MML Short-Duration Bond Fund FIXED INCOME FNMA POOL 529453 520 443 0.00 7.5 1/1/2030MML Short-Duration Bond Fund FIXED INCOME SPRINT COMMUNICATIONS 366,125 330,000 0.18 9.25 4/15/2022MML Short-Duration Bond Fund FIXED INCOME GNMA POOL 500928 654 570 0.00 7 5/15/2029MML Short-Duration Bond Fund FIXED INCOME GNMA II POOL 080136 110 107 0.00 3.125 11/20/2027MML Short-Duration Bond Fund FIXED INCOME FNMA POOL 252926 15 13 0.00 8 12/1/2029MML Short-Duration Bond Fund FIXED INCOME GNMA POOL 352022 474 448 0.00 7 11/15/2023MML Short-Duration Bond Fund FIXED INCOME GNMA POOL 510083 164 144 0.00 7 7/15/2029MML Short-Duration Bond Fund FIXED INCOME GNMA II POOL 008746 517 506 0.00 3.125 11/20/2025MML Short-Duration Bond Fund FIXED INCOME GNMA POOL 493723 486 422 0.00 7 8/15/2029MML Short-Duration Bond Fund CASH POUND STERLING 1 1 - 0MML Short-Duration Bond Fund CASH US DOLLAR 3,260,187 3,260,187 1.61 0MML Short-Duration Bond Fund FIXED INCOME US TREASURY N/B 1,327,438 1,220,000 0.66 8 11/15/2021MML Short-Duration Bond Fund FIXED INCOME FNMA POOL 253437 24 20 0.00 8 9/1/2030MML Short-Duration Bond Fund FIXED INCOME FNMA POOL 253481 10 9 0.00 8 10/1/2030MML Short-Duration Bond Fund FIXED INCOME FED HM LN PC POOL C01135 908 779 0.00 7.5 2/1/2031MML Short-Duration Bond Fund FIXED INCOME FNMA POOL 575667 1,581 1,333 0.00 7 3/1/2031

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Short-Duration Bond Fund FIXED INCOME FNMA POOL 535996 836 714 0.00 7.5 6/1/2031MML Short-Duration Bond Fund FIXED INCOME GNMA POOL 491089 1,345 1,233 0.00 7 12/15/2028MML Short-Duration Bond Fund FIXED INCOME FNMA POOL 602008 734 627 0.00 8 8/1/2031MML Short-Duration Bond Fund FIXED INCOME FNMA POOL 190317 508 434 0.00 8 8/1/2031MML Short-Duration Bond Fund FIXED INCOME FNMA POOL 597220 651 551 0.00 8 9/1/2031MML Short-Duration Bond Fund FIXED INCOME GNMA POOL 581417 959 841 0.00 7 7/15/2032MML Short-Duration Bond Fund FIXED INCOME MERRILL LYNCH MORTGAGE INVESTO 336 352 0.00 3.03163 7/25/2033MML Short-Duration Bond Fund FIXED INCOME CREDIT SUISSE AG 1,053,225 930,000 0.52 6.5 8/8/2023MML Short-Duration Bond Fund FIXED INCOME DISCOVER BANK 339,413 310,000 0.17 4.2 8/8/2023MML Short-Duration Bond Fund FIXED INCOME PLAINS ALL AMER PIPELINE 401,898 384,000 0.20 3.85 10/15/2023MML Short-Duration Bond Fund FIXED INCOME LINCOLN NATIONAL CORP 133,188 122,000 0.07 4 9/1/2023MML Short-Duration Bond Fund FIXED INCOME QVC INC 1,099,088 1,060,000 0.54 4.375 3/15/2023MML Short-Duration Bond Fund FIXED INCOME BPCE SA 925,232 825,000 0.46 5.7 10/22/2023MML Short-Duration Bond Fund FIXED INCOME TANGER PROPERTIES LP 613,485 610,000 0.30 3.875 12/1/2023MML Short-Duration Bond Fund FIXED INCOME WILLIS TOWERS WATSON PLC 194,245 190,000 0.10 5.75 3/15/2021MML Short-Duration Bond Fund FIXED INCOME PUGET ENERGY INC 272,463 260,000 0.13 6 9/1/2021MML Short-Duration Bond Fund FIXED INCOME QWEST CORP 512,184 485,000 0.25 6.75 12/1/2021MML Short-Duration Bond Fund FIXED INCOME MOLSON COORS BEVERAGE 204,820 197,000 0.10 3.5 5/1/2022MML Short-Duration Bond Fund FIXED INCOME ERICSSON LM 654,593 628,000 0.32 4.125 5/15/2022MML Short-Duration Bond Fund FIXED INCOME KINROSS GOLD CORP 380,718 370,000 0.19 5.125 9/1/2021MML Short-Duration Bond Fund FIXED INCOME NEWFIELD EXPLORATION CO 489,876 505,000 0.24 5.625 7/1/2024MML Short-Duration Bond Fund FIXED INCOME PENSKE TRUCK LEASING/PTL 876,934 816,000 0.43 4.875 7/11/2022MML Short-Duration Bond Fund FIXED INCOME CONTINENTAL RESOURCES 387,106 390,000 0.19 5 9/15/2022MML Short-Duration Bond Fund FIXED INCOME O REILLY AUTOMOTIVE INC 129,611 123,000 0.06 3.8 9/1/2022MML Short-Duration Bond Fund FIXED INCOME CNO FINANCIAL GROUP INC 785,670 685,000 0.39 5.25 5/30/2025MML Short-Duration Bond Fund FIXED INCOME WELK RESORTS LLC 33,892 34,032 0.02 2.79 6/16/2031MML Short-Duration Bond Fund FIXED INCOME CITIGROUP INC 942,137 835,000 0.47 4.4 6/10/2025MML Short-Duration Bond Fund FIXED INCOME REYNOLDS AMERICAN INC 568,296 505,000 0.28 4.45 6/12/2025MML Short-Duration Bond Fund FIXED INCOME ACCESS GROUP INC 123,627 140,000 0.06 1.64813 7/25/2058MML Short-Duration Bond Fund FIXED INCOME RPM INTERNATIONAL INC 8,290 8,000 0.00 3.45 11/15/2022MML Short-Duration Bond Fund FIXED INCOME GLENCORE FINANCE CANADA 269,683 254,000 0.13 4.25 10/25/2022MML Short-Duration Bond Fund FIXED INCOME MYLAN INC 552,267 525,000 0.27 3.125 1/15/2023MML Short-Duration Bond Fund FIXED INCOME IMPERIAL BRANDS FIN PLC 404,841 387,000 0.20 3.5 2/11/2023MML Short-Duration Bond Fund FIXED INCOME COUNTRYWIDE HOME LOANS 2,699 2,796 0.00 3.665677 2/25/2034MML Short-Duration Bond Fund FIXED INCOME STRUCTURED ADJUSTABLE RATE MOR 2,931 2,953 0.00 2.970284 3/25/2034MML Short-Duration Bond Fund FIXED INCOME WAMU MORTGAGE PASS THROUGH CER 8,322 8,701 0.00 2.41929 4/25/2044MML Short-Duration Bond Fund FIXED INCOME INDYMAC INDX MORTGAGE LOAN TRU 6,509 6,528 0.00 3.164963 8/25/2034MML Short-Duration Bond Fund FIXED INCOME BANC OF AMERICA MORTGAGE SECUR 3,392 3,468 0.00 3.090479 8/25/2034MML Short-Duration Bond Fund FIXED INCOME MERRILL LYNCH MORTGAGE INVESTO 351 355 0.00 3.249992 2/25/2034MML Short-Duration Bond Fund FIXED INCOME SLC STUDENT LOAN TRUST 269,086 298,942 0.13 0.48013 2/15/2045MML Short-Duration Bond Fund FIXED INCOME COUNTRYWIDE HOME LOANS 697 727 0.00 3.991 9/25/2033MML Short-Duration Bond Fund FIXED INCOME GSR MORTGAGE LOAN TRUST 1,067 1,057 0.00 3.489604 8/25/2034MML Short-Duration Bond Fund FIXED INCOME EARNEST STUDENT LOAN PROGRAM L 51,497 54,590 0.03 2.19813 2/26/2035MML Short-Duration Bond Fund FIXED INCOME SOCIAL PROFESSIONAL LOAN PROGR 49,978 49,819 0.02 1.34813 6/25/2033MML Short-Duration Bond Fund FIXED INCOME OXFORD FINANCE FUNDING TRUST 24,445 24,436 0.01 3.968 6/17/2024MML Short-Duration Bond Fund FIXED INCOME SOFI CONSUMER LOAN PROGRAM TRU 143,945 142,829 0.07 3.26 8/25/2025MML Short-Duration Bond Fund FIXED INCOME ELARA HGV TIMESHARE ISSUER 193,964 194,797 0.10 2.73 4/25/2028MML Short-Duration Bond Fund FIXED INCOME MOLSON COORS BEVERAGE 232,752 230,000 0.12 2.1 7/15/2021

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Short-Duration Bond Fund FIXED INCOME MOLSON COORS BEVERAGE 538,391 505,000 0.27 3 7/15/2026MML Short-Duration Bond Fund FIXED INCOME SLM STUDENT LOAN TRUST 322,064 360,234 0.16 0.4545 10/25/2040MML Short-Duration Bond Fund FIXED INCOME SMB PRIVATE EDUCATION LOAN TRU 166,911 167,427 0.08 1.25238 9/15/2034MML Short-Duration Bond Fund FIXED INCOME CNH INDUSTRIAL CAP LLC 652,279 635,000 0.32 3.875 10/15/2021MML Short-Duration Bond Fund FIXED INCOME ORANGE LAKE TIMESHARE TRUST 342,614 341,910 0.17 2.61 3/8/2029MML Short-Duration Bond Fund FIXED INCOME ORANGE LAKE TIMESHARE TRUST 132,509 140,207 0.07 2.91 3/8/2029MML Short-Duration Bond Fund FIXED INCOME NAVIENT STUDENT LOAN TRUST 701,420 701,420 0.35 1.29813 3/25/2066MML Short-Duration Bond Fund FIXED INCOME GOODGREEN TRUST 304,331 292,775 0.15 3.23 10/15/2052MML Short-Duration Bond Fund FIXED INCOME NEW RESIDENTIAL MORTGAGE LOAN 240,636 225,527 0.12 3.75 11/25/2056MML Short-Duration Bond Fund FIXED INCOME HERO FUNDING TRUST 177,634 170,706 0.09 3.57 9/20/2047MML Short-Duration Bond Fund FIXED INCOME NELNET PRIVATE EDUCATION LOAN 71,189 70,825 0.04 3.6 12/26/2040MML Short-Duration Bond Fund FIXED INCOME NELNET PRIVATE EDUCATION LOAN 93,949 98,356 0.05 1.89813 12/26/2040MML Short-Duration Bond Fund FIXED INCOME PARK AEROSPACE HOLDINGS 1,255,057 1,250,000 0.62 5.25 8/15/2022MML Short-Duration Bond Fund FIXED INCOME PETROLEOS MEXICANOS 490,721 495,000 0.24 4.625 9/21/2023MML Short-Duration Bond Fund FIXED INCOME MOSAIC SOLAR LOANS LLC 63,695 59,339 0.03 4.45 6/20/2042MML Short-Duration Bond Fund FIXED INCOME ENSTAR GROUP LTD 713,667 685,000 0.35 4.5 3/10/2022MML Short-Duration Bond Fund FIXED INCOME BROOKFIELD FINANCE INC 638,475 580,000 0.32 4 4/1/2024MML Short-Duration Bond Fund FIXED INCOME SIERRA RECEIVABLES FUNDING CO 155,560 152,941 0.08 2.91 3/20/2034MML Short-Duration Bond Fund FIXED INCOME CAPITAL AUTOMOTIVE REIT 612,008 610,095 0.30 4.18 4/15/2047MML Short-Duration Bond Fund FIXED INCOME BRE GRAND ISLANDER TIMESHARE I 98,885 98,440 0.05 2.94 5/25/2029MML Short-Duration Bond Fund FIXED INCOME BANCO SANTANDER SA 622,366 600,000 0.31 3.5 4/11/2022MML Short-Duration Bond Fund FIXED INCOME ENEL FINANCE INTL NV 294,083 285,000 0.15 2.875 5/25/2022MML Short-Duration Bond Fund FIXED INCOME AASET 2017 1 TRUST 128,796 142,463 0.06 3.967 5/16/2042MML Short-Duration Bond Fund FIXED INCOME SYNCHRONY BANK 485,032 470,000 0.24 3 6/15/2022MML Short-Duration Bond Fund FIXED INCOME DOMINOS PIZZA MASTER ISSUER LL 340,741 340,375 0.17 3.082 7/25/2047MML Short-Duration Bond Fund FIXED INCOME JACKSON NATL LIFE GLOBAL 511,345 495,000 0.25 2.5 6/27/2022MML Short-Duration Bond Fund FIXED INCOME SIRIUS XM RADIO INC 1,058,124 1,047,000 0.52 3.875 8/1/2022MML Short-Duration Bond Fund FIXED INCOME MITSUBISHI UFJ FIN GRP 850,093 820,000 0.42 2.665 7/25/2022MML Short-Duration Bond Fund FIXED INCOME BANK OF AMERICA CORP 1,983,772 1,910,000 0.98 2.816 7/21/2023MML Short-Duration Bond Fund FIXED INCOME SOCIAL PROFESSIONAL LOAN PROGR 345,020 1,000,000 0.17 0 9/25/2040MML Short-Duration Bond Fund FIXED INCOME KREF 2018 FL1 LTD. 1,139,326 1,150,000 0.56 1.5005 6/15/2036MML Short-Duration Bond Fund FIXED INCOME TACO BELL FUNDING, LLC 1,003,377 982,500 0.50 4.318 11/25/2048MML Short-Duration Bond Fund FIXED INCOME DUPONT DE NEMOURS INC 812,625 705,000 0.40 4.493 11/15/2025MML Short-Duration Bond Fund FIXED INCOME HORIZON AIRCRAFT FINANCE I LIM 503,121 532,581 0.25 4.458 12/15/2038MML Short-Duration Bond Fund FIXED INCOME CIFC FUNDING LTD 299,522 300,000 0.15 2.12175 10/20/2027MML Short-Duration Bond Fund FIXED INCOME EQUITABLE HOLDINGS INC 93,536 87,000 0.05 3.9 4/20/2023MML Short-Duration Bond Fund FIXED INCOME DANSKE BANK A/S 478,000 455,000 0.24 5 1/12/2022MML Short-Duration Bond Fund FIXED INCOME NAVIENT STUDENT LOAN TRUST 398,939 400,000 0.20 1.04813 12/27/2067MML Short-Duration Bond Fund FIXED INCOME GOODGREEN TRUST 302,817 285,956 0.15 3.86 10/15/2054MML Short-Duration Bond Fund FIXED INCOME SOCIAL PROFESSIONAL LOAN PROGR 311,476 1,314,800 0.15 0 6/15/2048MML Short-Duration Bond Fund FIXED INCOME AVIS BUDGET RENTAL CAR FUNDING 235,943 233,000 0.12 4.53 3/20/2023MML Short-Duration Bond Fund FIXED INCOME FANNIE MAE CAS 832,994 838,220 0.41 2.44813 8/25/2031MML Short-Duration Bond Fund FIXED INCOME SMB PRIVATE EDUCATION LOAN TRU 497,641 504,000 0.25 1.02238 7/15/2036MML Short-Duration Bond Fund FIXED INCOME DELL INT LLC / EMC CORP 447,029 414,000 0.22 4 7/15/2024MML Short-Duration Bond Fund FIXED INCOME SIERRA RECEIVABLES FUNDING CO 272,872 282,640 0.14 4.75 1/20/2036MML Short-Duration Bond Fund FIXED INCOME DB MASTER FINANCE LLC 341,345 322,740 0.17 4.021 5/20/2049MML Short-Duration Bond Fund FIXED INCOME DB MASTER FINANCE LLC 280,549 273,240 0.14 3.787 5/20/2049MML Short-Duration Bond Fund FIXED INCOME FCI FUNDING, LLC 106,570 104,740 0.05 3.63 2/18/2031

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Short-Duration Bond Fund FIXED INCOME ELMWOOD CLO II LTD. 350,135 350,000 0.17 1.72175 4/20/2031MML Short-Duration Bond Fund FIXED INCOME FANNIE MAE CAS 368,172 369,143 0.18 2.29813 9/25/2031MML Short-Duration Bond Fund FIXED INCOME STRUCTURED ASSET SECURITIES CO 229,725 241,161 0.11 0.94813 11/25/2035MML Short-Duration Bond Fund FIXED INCOME SYNGENTA FINANCE NV 363,209 335,000 0.18 4.892 4/24/2025MML Short-Duration Bond Fund FIXED INCOME SYNGENTA FINANCE NV 602,000 570,000 0.30 4.441 4/24/2023MML Short-Duration Bond Fund FIXED INCOME DOMINOS PIZZA MASTER ISSUER LL 372,819 352,800 0.18 4.116 7/25/2048MML Short-Duration Bond Fund FIXED INCOME BACARDI LTD 868,988 778,000 0.43 4.45 5/15/2025MML Short-Duration Bond Fund FIXED INCOME SEQUOIA MORTGAGE TRUST 151,961 150,990 0.08 3.5 5/25/2048MML Short-Duration Bond Fund FIXED INCOME JP MORGAN MORTGAGE TRUST 101,175 100,957 0.05 3.5 10/25/2048MML Short-Duration Bond Fund FIXED INCOME FORD MOTOR CREDIT CO LLC 253,052 275,000 0.13 1.51513 2/15/2023MML Short-Duration Bond Fund FIXED INCOME BARCLAYS PLC 486,321 485,000 0.24 1.66013 5/16/2024MML Short-Duration Bond Fund FIXED INCOME SEQUOIA MORTGAGE TRUST 298,558 295,025 0.15 4 6/25/2048MML Short-Duration Bond Fund FIXED INCOME NAVIENT STUDENT LOAN TRUST 149,265 155,899 0.07 0.87238 12/15/2059MML Short-Duration Bond Fund FIXED INCOME LOUISIANA ST PUBLIC FACS AUTH 10,476 10,467 0.01 1.168 4/26/2027MML Short-Duration Bond Fund FIXED INCOME TRIP RAIL MASTER FUNDING LLC 695,714 668,991 0.34 6.024 7/15/2041MML Short-Duration Bond Fund FIXED INCOME MORGAN STANLEY CAPITAL I TRUST 387,518 400,000 0.19 4.05707 8/5/2034MML Short-Duration Bond Fund FIXED INCOME MORGAN STANLEY BAML TRUST 248,896 250,000 0.12 3.769 2/15/2046MML Short-Duration Bond Fund FIXED INCOME AMERICAN TOWER TRUSTE I 511,053 500,000 0.25 3.07 3/15/2048MML Short-Duration Bond Fund FIXED INCOME HOST HOTELS + RESORTS LP 980,094 950,000 0.49 3.75 10/15/2023MML Short-Duration Bond Fund FIXED INCOME GRAPHIC PACKAGING INTERN 764,693 759,000 0.38 4.75 4/15/2021MML Short-Duration Bond Fund FIXED INCOME MORGAN STANLEY 459,264 424,000 0.23 4.1 5/22/2023MML Short-Duration Bond Fund FIXED INCOME GLENCORE FUNDING LLC 385,952 360,000 0.19 4.125 5/30/2023MML Short-Duration Bond Fund FIXED INCOME HIGHER EDUCATION FUNDING 843,033 950,000 0.42 1.796 1/1/2044MML Short-Duration Bond Fund FIXED INCOME O REILLY AUTOMOTIVE INC 937,423 873,000 0.46 3.85 6/15/2023MML Short-Duration Bond Fund EQUITY SLM STUDENT LN TR 2006 2 840,832 1,396 0.42 0MML Short-Duration Bond Fund FIXED INCOME CREDIT SUISSE ABS REPACKAGING 56,511 56,642 0.03 2.5 1/25/2030MML Short-Duration Bond Fund FIXED INCOME RRAM 395,810 400,000 0.20 1.365 1/15/2030MML Short-Duration Bond Fund FIXED INCOME SOCIAL PROFESSIONAL LOAN PROGR 413,442 1,000,000 0.20 0 2/25/2042MML Short-Duration Bond Fund OPTIONS BM1107812 SWAPTION 76,230 3,080,000 0.04 0 1/31/2033MML Short-Duration Bond Fund FIXED INCOME DISCOVER BANK 711,779 673,000 0.35 3.35 2/6/2023MML Short-Duration Bond Fund FIXED INCOME SEQUOIA MORTGAGE TRUST 112,563 111,666 0.06 4 2/25/2048MML Short-Duration Bond Fund FIXED INCOME SMB PRIVATE EDUCATION LOAN TRU 73,911 73,579 0.04 1.60238 2/17/2032MML Short-Duration Bond Fund FIXED INCOME TEVA PHARMACEUTICALS NE 237,720 240,000 0.12 2.2 7/21/2021MML Short-Duration Bond Fund FIXED INCOME NAVIENT STUDENT LOAN TRUST 563,315 563,315 0.28 1.39813 6/25/2065MML Short-Duration Bond Fund FIXED INCOME NISSAN MOTOR ACCEPTANCE 200,812 200,000 0.10 1.9 9/14/2021MML Short-Duration Bond Fund FIXED INCOME SOCIAL PROFESSIONAL LOAN PROGR 27,750 27,694 0.01 1.09813 1/25/2039MML Short-Duration Bond Fund FIXED INCOME RYDER SYSTEM INC 185,638 175,000 0.09 3.4 3/1/2023MML Short-Duration Bond Fund FIXED INCOME PNMAC GMSR ISSUER TRUST 244,003 250,000 0.12 2.99813 2/25/2023MML Short-Duration Bond Fund FIXED INCOME FORD MOTOR CREDIT CO LLC 399,079 405,000 0.20 1.11375 4/5/2021MML Short-Duration Bond Fund FIXED INCOME JP MORGAN MORTGAGE TRUST 274,079 272,197 0.14 3.5 9/25/2048MML Short-Duration Bond Fund FIXED INCOME FNMA POOL 775539 2,751 2,642 0.00 2.516 5/1/2034MML Short-Duration Bond Fund EQUITY SWAP BARCLAYS BANK COC 940,000 940,000 0.47 0MML Short-Duration Bond Fund EQUITY CCBRCIUS4 SWBC BRC (940,000) (940,000) 0.47 0MML Short-Duration Bond Fund EQUITY SWAP CREDIT SUISSE BOC (150,000) (150,000) 0.07 0MML Short-Duration Bond Fund FIXED INCOME BARCLAYS BANK PLC 530,263 504,000 0.26 10.179 6/12/2021MML Short-Duration Bond Fund FIXED INCOME CREDIT SUISSE SEASONED LOAN TR 56,315 56,785 0.03 0.38813 10/25/2034MML Short-Duration Bond Fund FIXED INCOME SANTANDER REVOLVING AUTO LOAN 178,870 170,000 0.09 2.8 1/26/2032MML Short-Duration Bond Fund FIXED INCOME VERUS SECURITIZATION TRUST 265,728 265,000 0.13 3.279 11/25/2059

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Short-Duration Bond Fund FIXED INCOME STEEL DYNAMICS INC 263,732 250,000 0.13 2.8 12/15/2024MML Short-Duration Bond Fund FIXED INCOME CARVANA AUTO RECEIVABLES TRUST 739,695 719,000 0.37 3.07 7/15/2025MML Short-Duration Bond Fund FIXED INCOME FORD MOTOR CREDIT CO LLC 254,771 260,000 0.13 3.087 1/9/2023MML Short-Duration Bond Fund FIXED INCOME AVOLON HOLDINGS FNDG LTD 307,062 335,000 0.15 2.875 2/15/2025MML Short-Duration Bond Fund FIXED INCOME EQT CORP 354,704 320,000 0.18 7.875 2/1/2025MML Short-Duration Bond Fund FIXED INCOME CAPITAL AUTOMOTIVE REIT 499,433 484,000 0.25 4.17 2/15/2050MML Short-Duration Bond Fund FIXED INCOME ONSLOW BAY FINANCIAL LLC 614,204 602,476 0.30 3.5 12/25/2049MML Short-Duration Bond Fund FIXED INCOME AVIS BUDGET RENTAL CAR FUNDING 1,226,723 1,259,000 0.61 3.02 8/20/2026MML Short-Duration Bond Fund FIXED INCOME BX TRUST 757,250 766,299 0.38 1.75238 12/15/2036MML Short-Duration Bond Fund FIXED INCOME BX TRUST 643,362 649,406 0.32 1.40238 12/15/2036MML Short-Duration Bond Fund FIXED INCOME OXFORD FINANCE FUNDING TRUST 285,017 281,000 0.14 3.101 2/15/2028MML Short-Duration Bond Fund FIXED INCOME HYUNDAI CAPITAL AMERICA 615,985 600,000 0.31 2.375 2/10/2023MML Short-Duration Bond Fund FIXED INCOME NAVIENT STUDENT LOAN TRUST 2,219,234 2,200,000 1.10 2.77 1/15/2069MML Short-Duration Bond Fund FIXED INCOME LUNAR AIRCRAFT 2020 1 LIMITED 162,232 175,127 0.08 3.376 2/15/2045MML Short-Duration Bond Fund FIXED INCOME AMERICREDIT AUTOMOBILE RECEIVA 954,218 947,000 0.47 1.8 12/18/2025MML Short-Duration Bond Fund FIXED INCOME VIACOMCBS INC 965,070 840,000 0.48 4.75 5/15/2025MML Short-Duration Bond Fund FIXED INCOME DELL INT LLC / EMC CORP 503,363 432,000 0.25 5.85 7/15/2025MML Short-Duration Bond Fund FIXED INCOME VALERO ENERGY CORP 185,458 179,000 0.09 2.7 4/15/2023MML Short-Duration Bond Fund FIXED INCOME MARRIOTT INTERNATIONAL 179,679 161,000 0.09 5.75 5/1/2025MML Short-Duration Bond Fund FIXED INCOME COMM MORTGAGE TRUST 90,062 90,050 0.04 3.147 2/10/2047MML Short-Duration Bond Fund FIXED INCOME SMB PRIVATE EDUCATION LOAN TRU 132,897 132,604 0.07 1.30238 5/15/2026MML Short-Duration Bond Fund FIXED INCOME NELNET STUDENT LOAN TRUST 575,002 600,000 0.28 1.497 6/25/2035MML Short-Duration Bond Fund FIXED INCOME GOVERNMENT NATIONAL MORTGAGE A 80,237 77,749 0.04 2.86814 5/20/2041MML Short-Duration Bond Fund FIXED INCOME NELNET STUDENT LOAN TRUST 125,820 130,000 0.06 1.64813 6/25/2054MML Short-Duration Bond Fund FIXED INCOME UNUM GROUP 673,830 620,000 0.33 3.875 11/5/2025MML Short-Duration Bond Fund FIXED INCOME HERTZ VEHICLE FINANCING LLC 1,738,725 1,800,000 0.86 4.99 3/25/2022MML Short-Duration Bond Fund FIXED INCOME ENTERGY TEXAS INC 96,257 95,000 0.05 2.55 6/1/2021MML Short-Duration Bond Fund FIXED INCOME SHELLPOINT CO ORIGINATOR TRUST 405,730 397,827 0.20 3 10/25/2031MML Short-Duration Bond Fund FIXED INCOME HILTON GRAND VACATIONS TRUST 1,150,646 1,126,123 0.57 2.66 12/26/2028MML Short-Duration Bond Fund FIXED INCOME HILTON GRAND VACATIONS TRUST 123,813 122,729 0.06 2.96 12/26/2028MML Short-Duration Bond Fund FIXED INCOME SOFI CONSUMER LOAN PROGRAM TRU 26,073 26,085 0.01 3.28 2/25/2026MML Short-Duration Bond Fund FIXED INCOME CAPITAL AUTOMOTIVE REIT 244,485 244,038 0.12 3.87 4/15/2047MML Short-Duration Bond Fund FIXED INCOME WESTGATE RESORTS 87,867 88,135 0.04 3.05 12/20/2030MML Short-Duration Bond Fund FIXED INCOME CARDINAL HEALTH INC 593,569 590,000 0.29 1.02038 6/15/2022MML Short-Duration Bond Fund FIXED INCOME COMMONBOND STUDENT LOAN TRUST 85,985 83,276 0.04 5.28 5/25/2041MML Short-Duration Bond Fund FIXED INCOME COLLEGE AVE STUDENT LOANS 717,224 700,000 0.36 4.5 11/26/2046MML Short-Duration Bond Fund FIXED INCOME HERTZ VEHICLE FINANCING LLC 902,384 910,000 0.45 3.56 10/25/2021MML Short-Duration Bond Fund FIXED INCOME OCP CLO LTD 647,689 650,000 0.32 1.72288 4/17/2027MML Short-Duration Bond Fund FIXED INCOME SOFI CONSUMER LOAN PROGRAM TRU 773,496 772,000 0.38 3.89 5/25/2028MML Short-Duration Bond Fund FIXED INCOME CREDIT SUISSE MORTGAGE TRUST 198,001 200,000 0.10 1.75238 5/15/2036MML Short-Duration Bond Fund FIXED INCOME SMB PRIVATE EDUCATION LOAN TRU 499,170 500,000 0.25 1.15238 6/15/2037MML Short-Duration Bond Fund FIXED INCOME MICROCHIP TECHNOLOGY INC 398,632 390,000 0.20 3.922 6/1/2021MML Short-Duration Bond Fund FIXED INCOME ARES CAPITAL CORP 992,738 953,000 0.49 4.2 6/10/2024MML Short-Duration Bond Fund FIXED INCOME NAVISTAR FINANCIAL DEALER NOTE 234,771 236,000 0.12 1.09813 5/25/2024MML Short-Duration Bond Fund FIXED INCOME NAVISTAR FINANCIAL DEALER NOTE 212,805 214,000 0.11 1.59813 5/25/2024MML Short-Duration Bond Fund FIXED INCOME ATHENE GLOBAL FUNDING 1,063,549 1,020,000 0.53 2.75 6/25/2024MML Short-Duration Bond Fund FIXED INCOME BENEFIT STREET PARTNERS CLO LT 493,570 500,000 0.24 2.025 1/15/2029MML Short-Duration Bond Fund FIXED INCOME EXETER AUTOMOBILE RECEIVABLES 412,708 400,000 0.20 3.11 8/15/2025

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Short-Duration Bond Fund FIXED INCOME SYNCHRONY FINANCIAL 622,635 605,000 0.31 2.85 7/25/2022MML Short-Duration Bond Fund FIXED INCOME IMPERIAL BRANDS FIN PLC 422,989 400,000 0.21 3.125 7/26/2024MML Short-Duration Bond Fund FIXED INCOME MARLETTE FUNDING TRUST 65,892 65,196 0.03 3.13 7/16/2029MML Short-Duration Bond Fund FIXED INCOME KNDL MORTGAGE TRUST 248,256 251,000 0.12 1.95238 5/15/2036MML Short-Duration Bond Fund FIXED INCOME SOCIAL PROFESSIONAL LOAN PROGR 211,372 956,000 0.10 0 2/25/2048MML Short-Duration Bond Fund FIXED INCOME CANADIAN PACER AUTO RECEIVABLE 183,661 180,000 0.09 3.63 1/19/2024MML Short-Duration Bond Fund FIXED INCOME ECMC GROUP STUDENT LOAN TRUST 392,162 399,679 0.19 0.94813 9/25/2068MML Short-Duration Bond Fund FIXED INCOME MSCG TRUST 88,923 90,000 0.04 1.33238 10/15/2037MML Short-Duration Bond Fund FIXED INCOME ADAMS OUTDOOR ADVERTISING 401,557 385,935 0.20 4.81 11/15/2048MML Short-Duration Bond Fund FIXED INCOME BX TRUST 722,135 728,000 0.36 1.85238 11/15/2035MML Short-Duration Bond Fund FIXED INCOME BAT CAPITAL CORP 444,015 415,000 0.22 3.222 8/15/2024MML Short-Duration Bond Fund FIXED INCOME AASET 2018 2 TRUST 598,464 643,463 0.30 4.454 11/18/2038MML Short-Duration Bond Fund FIXED INCOME BANC OF AMERICA MERRILL LYNCH 121,553 130,000 0.06 1.50238 9/15/2034MML Short-Duration Bond Fund FIXED INCOME KREF 2018 FL1 LTD. 794,351 800,000 0.39 1.2505 6/15/2036MML Short-Duration Bond Fund FIXED INCOME MACH I 339,460 373,211 0.17 3.474 10/15/2039MML Short-Duration Bond Fund FIXED INCOME BX COMMERCIAL MORTGAGE TRUST 2 831,148 841,078 0.41 2.15238 10/15/2036MML Short-Duration Bond Fund FIXED INCOME BX COMMERCIAL MORTGAGE TRUST 2 297,187 299,978 0.15 1.95238 10/15/2036MML Short-Duration Bond Fund FIXED INCOME GOODGREEN TRUST 582,881 575,139 0.29 2.76 10/15/2054MML Short-Duration Bond Fund FIXED INCOME LEASEPLAN CORPORATION NV 288,965 280,000 0.14 2.875 10/24/2024MML Short-Duration Bond Fund FIXED INCOME ASCENTIUM EQUIPMENT RECEIVABLE 670,381 669,000 0.33 3.78 5/10/2027MML Short-Duration Bond Fund FIXED INCOME VERUS SECURITIZATION TRUST 423,699 430,000 0.21 3.207 11/25/2059MML Short-Duration Bond Fund FIXED INCOME SIXTH STREET SPECIALTY 663,548 655,000 0.33 3.875 11/1/2024MML Short-Duration Bond Fund FIXED INCOME HYUNDAI CAPITAL AMERICA 330,918 320,000 0.16 2.85 11/1/2022MML Short-Duration Bond Fund FIXED INCOME DEEPHAVEN RESIDENTIAL MORTGAGE 555,017 550,000 0.27 3.484 10/25/2059MML Short-Duration Bond Fund FIXED INCOME GENPACT LUXEMBOURG SARL 350,808 335,000 0.17 3.375 12/1/2024MML Short-Duration Bond Fund FIXED INCOME HERTZ VEHICLE FINANCING LLC 408,155 410,000 0.20 3.03 12/26/2025MML Short-Duration Bond Fund CASH EQUIVALENT INTERCONTINENTAL EXCHANGE 999,337 1,000,000 0.50 0 12/3/2020MML Short-Duration Bond Fund CASH EQUIVALENT AMERICAN HONDA FINAN 999,643 1,000,000 0.50 0 11/19/2020MML Short-Duration Bond Fund FIXED INCOME STACK INFRASTRUCTURE ISSUER LL 163,080 162,000 0.08 1.893 8/25/2045MML Short-Duration Bond Fund FIXED INCOME TRITON CONTAINER FINANCE LLC 600,772 600,000 0.30 2.11 9/20/2045MML Short-Duration Bond Fund FIXED INCOME ANGEL OAK MORTGAGE TRUST 428,882 429,457 0.21 1.579 5/25/2065MML Short-Duration Bond Fund FIXED INCOME ANGEL OAK MORTGAGE TRUST 386,579 387,089 0.19 2.041 5/25/2065MML Short-Duration Bond Fund FIXED INCOME NUTRITION + BIOSCIENCES 359,098 360,000 0.18 1.23 10/1/2025MML Short-Duration Bond Fund FIXED INCOME DEUTSCHE BANK NY 689,761 685,000 0.34 2.222 9/18/2024MML Short-Duration Bond Fund FIXED INCOME SPRINGCASTLE SPV 960,208 950,000 0.48 1.97 9/25/2037MML Short-Duration Bond Fund FIXED INCOME DELTA AIR LINES/SKYMILES 189,968 185,000 0.09 4.5 10/20/2025MML Short-Duration Bond Fund CASH EQUIVALENT SOCIETE GENERALE 999,983 1,000,000 0.50 0 10/6/2020MML Short-Duration Bond Fund FIXED INCOME VANTAGE DATA CENTERS LLC 675,000 675,000 0.33 1.645 9/15/2045MML Short-Duration Bond Fund FIXED INCOME FED HM LN PC POOL C01079 233 198 0.00 7.5 10/1/2030MML Short-Duration Bond Fund FIXED INCOME SLM STUDENT LOAN TRUST 85,585 87,589 0.04 0.5445 7/25/2025MML Short-Duration Bond Fund FIXED INCOME SLM STUDENT LOAN TRUST 328,633 366,476 0.16 0.5445 1/25/2041MML Short-Duration Bond Fund FIXED INCOME 321 HENDERSON RECEIVABLES LLC 166,754 159,782 0.08 3.82 12/15/2048MML Short-Duration Bond Fund FIXED INCOME MORGAN STANLEY 445,096 425,000 0.22 2.188 4/28/2026MML Short-Duration Bond Fund FUTURE US 10YR ULTRA FUT DEC20 - (5,400,000) 0.01 0 12/21/2020MML Short-Duration Bond Fund CASH EQUIVALENT TREASURY BILL 1,999,982 2,000,000 0.99 0 10/6/2020MML Short-Duration Bond Fund FUTURE US 10YR NOTE (CBT)DEC20 - 15,200,000 0.02 0 12/21/2020MML Short-Duration Bond Fund FUTURE US 5YR NOTE (CBT) DEC20 - (52,400,000) 0.03 0 12/31/2020MML Short-Duration Bond Fund FUTURE US 2YR NOTE (CBT) DEC20 - (25,800,000) 0.00 0 12/31/2020

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Short-Duration Bond Fund FIXED INCOME LEIDOS INC 407,971 390,000 0.20 2.95 5/15/2023MML Short-Duration Bond Fund FIXED INCOME ABBVIE INC 548,877 495,000 0.27 3.8 3/15/2025MML Short-Duration Bond Fund FIXED INCOME ARES CLO LTD 501,505 500,000 0.25 2.01047 4/15/2031MML Short-Duration Bond Fund FIXED INCOME UNUM GROUP 294,357 265,000 0.15 4.5 3/15/2025MML Short-Duration Bond Fund FIXED INCOME FORD MOTOR CREDIT CO LLC 359,525 365,000 0.18 3.35 11/1/2022MML Short-Duration Bond Fund FIXED INCOME LAS VEGAS SANDS CORP 1,036,141 1,025,000 0.51 3.2 8/8/2024MML Short-Duration Bond Fund FIXED INCOME AERCAP IRELAND CAP/GLOBA 987,220 1,025,000 0.49 2.875 8/14/2024MML Short-Duration Bond Fund FIXED INCOME BAIN CAPITAL CREDIT CLO LTD. 746,079 750,000 0.37 2.075 1/15/2029MML Short-Duration Bond Fund FIXED INCOME DIAMOND RESORTS OWNER TRUST 420,972 413,984 0.21 2.89 2/20/2032MML Short-Duration Bond Fund FIXED INCOME BLACKROCK TCP CAP CORP 365,767 360,000 0.18 3.9 8/23/2024MML Short-Duration Bond Fund FIXED INCOME MPLX LP 1,050,042 1,050,000 0.52 1.34175 9/9/2022MML Short-Duration Bond Fund FIXED INCOME HERO FUNDING TRUST 332,371 309,740 0.16 4.67 9/20/2048MML Short-Duration Bond Fund FIXED INCOME DEEPHAVEN RESIDENTIAL MORTGAGE 348,680 346,132 0.17 3.684 4/25/2058MML Short-Duration Bond Fund FIXED INCOME ENERGY TRANSFER OPERATNG 1,013,233 960,000 0.50 4.2 9/15/2023MML Short-Duration Bond Fund FIXED INCOME CASTLELAKE AIRCRAFT STRUCTURED 271,357 290,666 0.13 4.125 6/15/2043MML Short-Duration Bond Fund FIXED INCOME RYDER SYSTEM INC 518,106 482,000 0.26 3.75 6/9/2023MML Short-Duration Bond Fund FIXED INCOME EQM MIDSTREAM PARTNERS L 504,015 505,000 0.25 4.75 7/15/2023MML Short-Duration Bond Fund FIXED INCOME TIAA BANK MORTGAGE LOAN TRUST 87,947 87,826 0.04 3.5 7/25/2048MML Short-Duration Bond Fund FIXED INCOME SUMITOMO MITSUI FINL GRP 163,621 151,000 0.08 3.748 7/19/2023MML Short-Duration Bond Fund FIXED INCOME BHMS MORTGAGE TRUST 736,325 770,000 0.36 1.40238 7/15/2035MML Short-Duration Bond Fund FIXED INCOME BHMS MORTGAGE TRUST 881,149 950,000 0.44 1.65238 7/15/2035MML Short-Duration Bond Fund FIXED INCOME PLANET FITNESS MASTER ISSUER L 587,763 588,000 0.29 4.262 9/5/2048MML Short-Duration Bond Fund FIXED INCOME ANTARES HOLDINGS 478,325 473,000 0.24 6 8/15/2023MML Short-Duration Bond Fund FIXED INCOME GENPACT LUXEMBOURG SARL 650,077 635,000 0.32 3.7 4/1/2022MML Short-Duration Bond Fund FIXED INCOME SEQUOIA MORTGAGE TRUST 16,458 16,480 0.01 4 9/25/2048MML Short-Duration Bond Fund FIXED INCOME DIAMOND RESORTS OWNER TRUST 154,209 150,943 0.08 3.7 1/21/2031MML Short-Duration Bond Fund FIXED INCOME WILLIS ENGINE SECURITIZATION T 190,364 225,699 0.09 4.75 9/15/2043MML Short-Duration Bond Fund FIXED INCOME CAL FUNDING III LTD 230,057 232,000 0.11 4.34 9/25/2043MML Short-Duration Bond Fund FIXED INCOME SANTANDER REVOLVING AUTO LOAN 102,259 101,000 0.05 3 1/26/2032MML Short-Duration Bond Fund FIXED INCOME SANTANDER REVOLVING AUTO LOAN 214,224 215,000 0.11 3.45 1/26/2032MML Short-Duration Bond Fund FIXED INCOME TRAFIGURA SECURITISATION FINAN 917,468 920,000 0.45 4.29 3/15/2022MML Short-Duration Bond Fund FIXED INCOME DEEPHAVEN RESIDENTIAL MORTGAGE 256,954 254,021 0.13 3.963 8/25/2058MML Short-Duration Bond Fund FIXED INCOME STORE MASTER FUNDING LLC 526,183 515,017 0.26 4.4 10/20/2048MML Short-Duration Bond Fund FIXED INCOME BX TRUST 755,761 759,500 0.37 1.25238 11/15/2035MML Short-Duration Bond Fund FIXED INCOME TREMAN PARK CLO LTD 993,488 1,000,000 0.49 1.34175 10/20/2028MML Short-Duration Bond Fund FIXED INCOME MARINER FINANCE ISSUANCE TRUST 907,664 903,000 0.45 4.2 11/20/2030MML Short-Duration Bond Fund FIXED INCOME COMMONBOND STUDENT LOAN TRUST 24,724 24,559 0.01 4.35 2/25/2046MML Short-Duration Bond Fund FIXED INCOME NEW RESIDENTIAL MORTGAGE LOAN 370,972 364,675 0.18 3.92798 1/25/2049MML Short-Duration Bond Fund FIXED INCOME CAMB COMMERCIAL MORTGAGE TRUST 538,414 545,194 0.27 2.30238 12/15/2037MML Short-Duration Bond Fund FIXED INCOME OSCAR US FUNDING TRUST 527,725 500,000 0.26 3.27 5/11/2026MML Short-Duration Bond Fund FIXED INCOME AVANT LOANS FUNDING TRUST 27,455 27,446 0.01 3.48 7/15/2022MML Short-Duration Bond Fund FIXED INCOME NEW RESIDENTIAL MORTGAGE LOAN 155,416 153,052 0.08 3.75188 4/25/2049MML Short-Duration Bond Fund FIXED INCOME TRINITY RAIL LEASING L.P. 665,398 638,748 0.33 3.82 4/17/2049MML Short-Duration Bond Fund FIXED INCOME BRE GRAND ISLANDER TIMESHARE I 273,320 276,339 0.14 3.78 9/26/2033MML Short-Duration Bond Fund FIXED INCOME MARLETTE FUNDING TRUST 148,862 146,000 0.07 3.53 7/16/2029MML Short-Duration Bond Fund FIXED INCOME ORANGE LAKE TIMESHARE TRUST 462,721 502,357 0.23 4.93 4/9/2038MML Short-Duration Bond Fund FIXED INCOME HUDSON YARDS 684,495 700,000 0.34 3.557897 7/10/2039MML Short-Duration Bond Fund FIXED INCOME ELARA HGV TIMESHARE ISSUER 310,234 315,701 0.15 2.96 3/25/2030

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Short-Duration Bond Fund FIXED INCOME VERUS SECURITIZATION TRUST 831,059 813,605 0.41 3.219 7/25/2059MML Short-Duration Bond Fund FIXED INCOME ELARA HGV TIMESHARE ISSUER 645,947 657,609 0.32 3.45 1/25/2034MML Short-Duration Bond Fund FIXED INCOME AVIS BUDGET RENTAL CAR FUNDING 1,063,813 1,083,000 0.53 3.15 3/20/2026MML Short-Duration Bond Fund FIXED INCOME ONEMAIN FINANCIAL ISSUANCE TRU 627,040 600,000 0.31 3.66 10/14/2036MML Short-Duration Bond Fund FIXED INCOME STARWOOD MORTGAGE RESIDENTIAL 540,149 532,984 0.27 2.916 9/27/2049MML Short-Duration Bond Fund FIXED INCOME ELARA HGV TIMESHARE ISSUER 106,193 106,549 0.05 2.69 3/25/2030MML Short-Duration Bond Fund FIXED INCOME SLM STUDENT LOAN TRUST 797,937 901,701 0.40 1.19138 1/27/2042MML Short-Duration Bond Fund FIXED INCOME ROCKFORD TOWER CLO LTD 990,419 1,000,000 0.49 1.46175 10/20/2030MML Short-Duration Bond Fund FIXED INCOME NEUBERGER BERMAN CLO LTD 591,442 600,000 0.29 1.525 1/15/2028MML Short-Duration Bond Fund FIXED INCOME JP MORGAN MORTGAGE TRUST 176,719 174,655 0.09 3.5 12/25/2048MML Short-Duration Bond Fund FIXED INCOME JP MORGAN MORTGAGE TRUST 146,287 145,998 0.07 3.5 6/25/2048MML Short-Duration Bond Fund FIXED INCOME NAVIENT STUDENT LOAN TRUST 841,842 850,000 0.42 0.86813 3/25/2067MML Short-Duration Bond Fund FIXED INCOME DEEPHAVEN RESIDENTIAL MORTGAGE 149,749 148,743 0.07 3.027 12/25/2057MML Short-Duration Bond Fund FIXED INCOME CNH INDUSTRIAL CAP LLC 122,250 120,000 0.06 1.95 7/2/2023MML Short-Duration Bond Fund FIXED INCOME AERCAP IRELAND CAP/GLOBA 262,790 255,000 0.13 4.5 9/15/2023MML Short-Duration Bond Fund FIXED INCOME SUMITOMO MITSUI FINL GRP 341,161 335,000 0.17 1.474 7/8/2025MML Short-Duration Bond Fund FIXED INCOME FREDDIE MAC STACR 490,824 490,000 0.24 1.64813 6/25/2050MML Short-Duration Bond Fund FIXED INCOME FREDDIE MAC STACR 1,440,010 1,436,000 0.71 3.14813 6/25/2050MML Short-Duration Bond Fund FIXED INCOME AFFIRM ASSET SECURITIZATION TR 426,487 423,699 0.21 3.46 10/15/2024MML Short-Duration Bond Fund FIXED INCOME BGC PARTNERS INC 357,075 350,000 0.18 4.375 12/15/2025MML Short-Duration Bond Fund FIXED INCOME SBA TOWER TRUST 293,374 287,000 0.15 1.884 7/15/2050MML Short-Duration Bond Fund FIXED INCOME WESTGATE RESORTS 425,910 416,610 0.21 2.713 3/20/2034MML Short-Duration Bond Fund FIXED INCOME CF HIPPOLYTA ISSUER LLC 252,825 250,000 0.13 1.69 7/15/2060MML Short-Duration Bond Fund FIXED INCOME CF HIPPOLYTA ISSUER LLC 102,764 101,000 0.05 2.28 7/15/2060MML Short-Duration Bond Fund CASH EQUIVALENT HARLEY-DAVIDSON FND CP 999,962 1,000,000 0.50 0 10/8/2020MML Short-Duration Bond Fund FIXED INCOME RELIANCE STEEL + ALUM 354,560 355,000 0.18 1.3 8/15/2025MML Short-Duration Bond Fund FIXED INCOME TESLA AUTO LEASE TRUST 460,641 456,000 0.23 1.68 2/20/2024MML Short-Duration Bond Fund CASH EQUIVALENT DUKE ENERGY CORP 1,999,990 2,000,000 0.99 0 10/2/2020MML Short-Duration Bond Fund FIXED INCOME SIERRA RECEIVABLES FUNDING CO 119,022 117,895 0.06 3.51 7/20/2037MML Short-Duration Bond Fund FIXED INCOME BUNGE LTD FINANCE CORP 140,612 140,000 0.07 1.63 8/17/2025MML Short-Duration Bond Fund FIXED INCOME NISOURCE INC 669,298 670,000 0.33 0.95 8/15/2025MML Short-Duration Bond Fund FIXED INCOME TIF FUNDING II LLC 118,062 118,256 0.06 2.09 8/20/2045MML Short-Duration Bond Fund FIXED INCOME MAGNETITE CLO LTD 752,079 750,000 0.37 1.94943 7/15/2030MML Short-Duration Bond Fund FIXED INCOME CNH EQUIPMENT TRUST 245,659 235,000 0.12 2.3 10/15/2027MML Short-Duration Bond Fund FIXED INCOME BANCO SANTANDER SA 209,791 200,000 0.10 2.746 5/28/2025MML Short-Duration Bond Fund FIXED INCOME STEEL DYNAMICS INC 172,156 165,000 0.09 2.4 6/15/2025MML Short-Duration Bond Fund FIXED INCOME PACIFIC GAS + ELECTRIC 640,769 640,000 0.32 1.75 6/16/2022MML Short-Duration Bond Fund FIXED INCOME UPJOHN INC 194,492 190,000 0.10 1.65 6/22/2025MML Short-Duration Bond Fund FIXED INCOME T MOBILE USA INC 433,320 430,000 0.21 1.5 2/15/2026MML Short-Duration Bond Fund FIXED INCOME DRIVE AUTO RECEIVABLES TRUST 563,073 550,000 0.28 2.7 2/16/2027MML Short-Duration Bond Fund FIXED INCOME SBA TOWER TRUST 1,551,838 1,450,000 0.77 2.836 1/15/2050MML Short-Duration Bond Fund FIXED INCOME SERVICE PROPERTIES TRUST 461,550 510,000 0.23 4.35 10/1/2024MML Short-Duration Bond Fund FIXED INCOME AMERICREDIT AUTOMOBILE RECEIVA 602,920 588,000 0.30 2.58 9/18/2025MML Short-Duration Bond Fund FIXED INCOME CIM TRUST 1,220,619 1,220,667 0.60 1.12513 8/25/2049MML Short-Duration Bond Fund FIXED INCOME SUMITOMO MITSUI FINL GRP 549,357 520,000 0.27 2.448 9/27/2024MML Short-Duration Bond Fund FIXED INCOME NEW RESIDENTIAL ADVANCE RECEIV 713,995 714,000 0.35 2.8035 10/15/2051MML Short-Duration Bond Fund FIXED INCOME SIERRA RECEIVABLES FUNDING CO 325,859 332,784 0.16 4.236 4/20/2035MML Short-Duration Bond Fund FIXED INCOME LAUREL ROAD PRIME STUDENT LOAN 195,511 191,151 0.10 3.72 5/26/2043

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Short-Duration Bond Fund FIXED INCOME TRINITY RAIL LEASING L.P. 465,597 464,572 0.23 3.82 6/17/2048MML Short-Duration Bond Fund FIXED INCOME HERTZ VEHICLE FINANCING LLC 326,713 330,000 0.16 4.37 7/25/2024MML Short-Duration Bond Fund FIXED INCOME DEEPHAVEN RESIDENTIAL MORTGAGE 372,258 368,559 0.18 4.285 10/25/2058MML Short-Duration Bond Fund FIXED INCOME SEQUOIA MORTGAGE TRUST 7,139 7,153 0.00 4 2/25/2049MML Short-Duration Bond Fund FIXED INCOME HERTZ FLEET LEASE FUNDING LP 620,377 649,000 0.31 3.44 1/10/2033MML Short-Duration Bond Fund FIXED INCOME ANGEL OAK MORTGAGE TRUST 253,398 250,814 0.13 3.238 5/25/2059MML Short-Duration Bond Fund FIXED INCOME LAUREL ROAD PRIME STUDENT LOAN 260,855 256,646 0.13 3 10/25/2048MML Short-Duration Bond Fund FIXED INCOME NP SPE IX LP 202,260 203,677 0.10 2.574 9/20/2049MML Short-Duration Bond Fund FIXED INCOME CITIGROUP MORTGAGE LOAN TRUST 439,106 440,479 0.22 3.03 7/25/2049MML Short-Duration Bond Fund FIXED INCOME CARMAX AUTO OWNER TRUST 565,044 560,000 0.28 2.8 4/15/2026MML Short-Duration Bond Fund FIXED INCOME HORIZON AIRCRAFT FINANCE III L 515,179 683,333 0.26 4.458 11/15/2039MML Short-Duration Bond Fund FIXED INCOME COMMONBOND STUDENT LOAN TRUST 463,853 479,587 0.23 3.04 1/25/2047MML Short-Duration Bond Fund FIXED INCOME ANGEL OAK MORTGAGE TRUST 808,975 800,000 0.40 3.389 11/25/2059MML Short-Duration Bond Fund FIXED INCOME CBAM CLO MANAGEMENT 497,214 500,000 0.25 1.545 1/15/2031MML Short-Duration Bond Fund FIXED INCOME BANC OF AMERICA MERRILL LYNCH 333,447 370,000 0.17 4.024368 11/5/2032MML Short-Duration Bond Fund FIXED INCOME BANC OF AMERICA MERRILL LYNCH 363,881 450,000 0.18 4.024368 11/5/2032MML Short-Duration Bond Fund FIXED INCOME VERUS SECURITIZATION TRUST 1,029,256 1,034,000 0.51 3.021 1/25/2060MML Short-Duration Bond Fund FIXED INCOME BAIN CAPITAL CREDIT CLO, LIMIT 501,081 500,000 0.25 2.211176 7/21/2031MML Short-Duration Bond Fund FIXED INCOME HOMEWARD OPPORTUNITIES FUND I 393,985 392,241 0.20 1.657 5/25/2065MML Short-Duration Bond Fund FIXED INCOME VERUS SECURITIZATION TRUST 546,650 548,000 0.27 3.291 5/25/2065MML Short-Duration Bond Fund FIXED INCOME AFFIRM ASSET SECURITIZATION TR 1,237,323 1,235,000 0.61 2.1 2/18/2025MML Short-Duration Bond Fund CASH EQUIVALENT AVANGRID INC 999,781 1,000,000 0.50 0 11/9/2020MML Short-Duration Bond Fund FIXED INCOME BRAVO RESIDENTIAL FUNDING TRUS 414,737 415,414 0.21 2.406 5/25/2060MML Short-Duration Bond Fund CASH EQUIVALENT INTERCONTINENTAL EXCHANGE 999,557 1,000,000 0.50 0 11/13/2020MML Short-Duration Bond Fund FIXED INCOME HIN TIMESHARE TRUST 2020 A 1,027,995 1,027,000 0.51 2.23 10/9/2039MML Short-Duration Bond Fund FIXED INCOME TAL ADVANTAGE VII LLC 899,053 900,000 0.45 3.29 9/20/2045MML Short-Duration Bond Fund FIXED INCOME BM1175900 CDS USD R V 03MEVENT 900,000 900,000 0.45 1 12/20/2025MML Short-Duration Bond Fund FIXED INCOME BM1175900 CDS USD P F 1.00000 (918,757) (900,000) 0.46 1 12/20/2025MML Short-Duration Bond Fund FIXED INCOME BM1176247 CDS USD R V 03MEVENT 800,000 800,000 0.40 1 12/20/2025MML Short-Duration Bond Fund FIXED INCOME BM1176247 CDS USD P F 1.00000 (816,673) (800,000) 0.40 1 12/20/2025MML Short-Duration Bond Fund FIXED INCOME GOODGREEN TRUST 269,757 253,829 0.13 3.93 10/15/2053MML Short-Duration Bond Fund FIXED INCOME SIERRA RECEIVABLES FUNDING CO 345,372 350,397 0.17 3 8/20/2036MML Short-Duration Bond Fund FIXED INCOME CITIGROUP MORTGAGE LOAN TRUST 381,127 391,000 0.19 3.17 7/25/2049MML Short-Duration Bond Fund CASH EQUIVALENT NRW. BANK 1,999,773 2,000,000 0.99 0 11/3/2020MML Short-Duration Bond Fund FIXED INCOME COLLEGE LOAN CORPORATION TRUST 148,843 165,709 0.07 0.765 1/15/2037MML Short-Duration Bond Fund FIXED INCOME GLOBAL SC FINANCE SRL 76,306 76,208 0.04 2.98 4/17/2028MML Short-Duration Bond Fund FIXED INCOME PENNSYLVANIA ST HGR EDU ASSIST 446,634 450,000 0.22 1.655 10/25/2042MML Short-Duration Bond Fund FIXED INCOME 321 HENDERSON RECEIVABLES LLC 26,173 26,604 0.01 0.35238 3/15/2041MML Short-Duration Bond Fund FIXED INCOME COMM MORTGAGE TRUST 343,865 333,000 0.17 4.035 2/10/2048MML Short-Duration Bond Fund FIXED INCOME ELARA HGV TIMESHARE ISSUER 24,977 25,013 0.01 3.02 2/25/2027MML Short-Duration Bond Fund FIXED INCOME SIERRA RECEIVABLES FUNDING CO 89,606 89,880 0.04 2.78 7/20/2033MML Short-Duration Bond Fund FIXED INCOME DRB PRIME STUDENT LOAN TRUST 144,861 144,509 0.07 2.04813 10/25/2044MML Short-Duration Bond Fund FIXED INCOME WELK RESORTS LLC 114,859 116,376 0.06 3.41 6/15/2033MML Short-Duration Bond Fund FIXED INCOME COLLEGE AVE STUDENT LOANS 358,850 357,733 0.18 1.79813 11/26/2046MML Short-Duration Bond Fund FIXED INCOME RECETTE CLO LLC 248,386 250,000 0.12 1.97175 10/20/2027MML Short-Duration Bond Fund FIXED INCOME NP SPE II LLC 138,129 135,252 0.07 3.372 10/21/2047MML Short-Duration Bond Fund FIXED INCOME COMMONBOND STUDENT LOAN TRUST 38,461 39,030 0.02 3.82 2/25/2044MML Short-Duration Bond Fund FIXED INCOME SEQUOIA MORTGAGE TRUST 276,501 275,682 0.14 3.5 3/25/2048

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Short-Duration Bond Fund FIXED INCOME TLF NATIONAL TAX LIEN TRUST 339,587 337,362 0.17 3.09 12/15/2029MML Short-Duration Bond Fund FIXED INCOME PSMC TRUST 201,842 199,699 0.10 3.5 2/25/2048MML Short-Duration Bond Fund FIXED INCOME ELFI GRADUATE LOAN PROGRAM 192,923 194,218 0.10 4 8/25/2042MML Short-Duration Bond Fund FIXED INCOME WESTGATE RESORTS 186,893 188,129 0.09 3.38 12/20/2031MML Short-Duration Bond Fund FIXED INCOME AVIS BUDGET RENTAL CAR FUNDING 517,195 500,000 0.26 4.73 9/20/2024MML Short-Duration Bond Fund FIXED INCOME LENDMARK FUNDING TRUST 356,565 350,000 0.18 3.81 12/21/2026MML Short-Duration Bond Fund FIXED INCOME PSMC 2018 1 TRUST 161,680 160,745 0.08 3.5 6/25/2048MML Short-Duration Bond Fund FIXED INCOME COLLEGE AVE STUDENT LOANS 431,226 435,566 0.21 1.34813 12/26/2047MML Short-Duration Bond Fund FIXED INCOME MOSAIC SOLAR LOANS LLC 244,115 229,463 0.12 4.2 2/22/2044MML Short-Duration Bond Fund FIXED INCOME SEQUOIA MORTGAGE TRUST 118,213 117,578 0.06 4 8/25/2048MML Short-Duration Bond Fund FIXED INCOME COMMONBOND STUDENT LOAN TRUST 45,413 45,406 0.02 4.12 9/25/2045MML Short-Duration Bond Fund FIXED INCOME VSE VOI MORTGAGE LLC 149,747 160,084 0.07 4.02 2/20/2036MML Short-Duration Bond Fund FIXED INCOME SMB PRIVATE EDUCATION LOAN TRU 449,621 455,940 0.22 0.90238 11/15/2035MML Short-Duration Bond Fund FIXED INCOME TRAFIGURA SECURITISATION FINAN 599,706 610,000 0.30 0.88238 3/15/2022MML High Yield Fund FIXED INCOME WYNN LAS VEGAS LLC/CORP 698,375 740,000 0.59 5.5 3/1/2025MML High Yield Fund FIXED INCOME BAUSCH HEALTH COS INC 76,781 75,000 0.06 6.125 4/15/2025MML High Yield Fund FIXED INCOME BAUSCH HEALTH COS INC 4,975 5,000 0.00 5.875 5/15/2023MML High Yield Fund FIXED INCOME TOWNSQUARE MEDIA INC 113,615 124,000 0.10 6.5 4/1/2023MML High Yield Fund FIXED INCOME BROOKFIELD RESIDENTIAL 491,000 491,000 0.41 6.375 5/15/2025MML High Yield Fund FIXED INCOME GENESIS ENERGY LP/GENESI 694,238 765,000 0.58 6 5/15/2023MML High Yield Fund FIXED INCOME HILCORP ENERGY I/HILCORP 38,915 43,000 0.03 5.75 10/1/2025MML High Yield Fund FIXED INCOME COMMSCOPE TECH LLC 213,859 211,000 0.18 6 6/15/2025MML High Yield Fund FIXED INCOME OCCIDENTAL PETROLEUM COR 157,700 190,000 0.13 3.5 6/15/2025MML High Yield Fund FIXED INCOME KENAN ADVANTAGE GROUP 3,104,000 3,200,000 2.61 7.875 7/31/2023MML High Yield Fund FIXED INCOME FORD MOTOR CREDIT CO LLC 198,083 200,000 0.17 4.134 8/4/2025MML High Yield Fund FIXED INCOME AVANOS MEDICAL INC 1,300,520 1,300,000 1.09 6.25 10/15/2022MML High Yield Fund FIXED INCOME RHP HOTEL PPTY/RHP FINAN 772,644 789,000 0.65 5 4/15/2023MML High Yield Fund FIXED INCOME PBF LOGISTICS LP/FINANCE 376,000 400,000 0.32 6.875 5/15/2023MML High Yield Fund FIXED INCOME SOLERA LLC / SOLERA FINA 485,925 465,000 0.41 10.5 3/1/2024MML High Yield Fund FIXED INCOME NEWELL BRANDS INC 144,315 126,000 0.12 5.875 4/1/2036MML High Yield Fund FIXED INCOME NEWELL BRANDS INC 358,905 337,000 0.30 4.7 4/1/2026MML High Yield Fund FIXED INCOME OCCIDENTAL PETROLEUM COR 140,622 198,000 0.12 4.4 4/15/2046MML High Yield Fund FIXED INCOME PENSKE AUTOMOTIVE GROUP 1,031,580 1,000,000 0.87 5.5 5/15/2026MML High Yield Fund FIXED INCOME SIRIUS XM RADIO INC 173,797 167,000 0.15 5.375 7/15/2026MML High Yield Fund FIXED INCOME VERITAS US INC/BERMUDA L 1,899,608 2,020,000 1.60 10.5 2/1/2024MML High Yield Fund FIXED INCOME CVR PARTNERS/CVR NITROGE 417,175 451,000 0.35 9.25 6/15/2023MML High Yield Fund FIXED INCOME DELL INT LLC / EMC CORP 940,332 904,000 0.79 7.125 6/15/2024MML High Yield Fund FIXED INCOME ENLINK MIDSTREAM PARTNER 48,446 56,000 0.04 4.85 7/15/2026MML High Yield Fund FIXED INCOME WESTERN MIDSTREAM OPERAT 321,195 399,000 0.27 5.3 3/1/2048MML High Yield Fund FIXED INCOME PEABODY ENERGY CORP 802,140 1,383,000 0.68 6 3/31/2022MML High Yield Fund FIXED INCOME TRANSDIGM INC 656,570 654,000 0.55 6.375 6/15/2026MML High Yield Fund FIXED INCOME COMMSCOPE TECH LLC 167,040 174,000 0.14 5 3/15/2027MML High Yield Fund FIXED INCOME TEGNA INC 437,077 447,000 0.37 4.625 3/15/2028MML High Yield Fund FIXED INCOME CHENIERE ENERGY PARTNERS 754,000 725,000 0.63 5.625 10/1/2026MML High Yield Fund FIXED INCOME TRIDENT TPI HOLDINGS INC 409,758 386,000 0.34 9.25 8/1/2024MML High Yield Fund FIXED INCOME JBS USA/FOOD/FINANCE 899,076 826,000 0.76 5.5 1/15/2030MML High Yield Fund FIXED INCOME OPEN TEXT HOLDINGS INC 134,726 131,000 0.11 4.125 2/15/2030MML High Yield Fund FIXED INCOME BANIJAY ENTERTAINMENT 242,506 241,000 0.20 5.375 3/1/2025

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML High Yield Fund FIXED INCOME OPEN TEXT CORP 305,491 302,000 0.26 3.875 2/15/2028MML High Yield Fund FIXED INCOME ASBURY AUTOMOTIVE GROUP 152,950 152,000 0.13 4.5 3/1/2028MML High Yield Fund FIXED INCOME BLOCK COMMUNICATIONS INC 346,800 340,000 0.29 4.875 3/1/2028MML High Yield Fund FIXED INCOME VALVOLINE INC 210,120 206,000 0.18 4.25 2/15/2030MML High Yield Fund FIXED INCOME BROOKFIELD RESID PROPERT 244,299 261,000 0.21 4.875 2/15/2030MML High Yield Fund FIXED INCOME HCA INC 1,126,881 1,106,000 0.95 3.5 9/1/2030MML High Yield Fund FIXED INCOME ICAHN ENTERPRISES/FIN 117,723 113,000 0.10 5.25 5/15/2027MML High Yield Fund FIXED INCOME FREEPORT MCMORAN INC 69,863 69,000 0.06 4.125 3/1/2028MML High Yield Fund FIXED INCOME MATTAMY GROUP CORP 676,417 668,000 0.57 4.625 3/1/2030MML High Yield Fund FIXED INCOME AMERICAN AIRLINES GROUP 110,533 218,000 0.09 3.75 3/1/2025MML High Yield Fund EQUITY APPVION HLDG CORP - 2,106 - 0MML High Yield Fund EQUITY APPVION HOLDING CORP - 2,106 - 0MML High Yield Fund FIXED INCOME NOURYON HOLDING BV 149,246 141,000 0.13 8 10/1/2026MML High Yield Fund FIXED INCOME HILCORP ENERGY I/HILCORP 332,150 365,000 0.28 6.25 11/1/2028MML High Yield Fund FIXED INCOME RESIDEO FUNDING INC 788,000 800,000 0.66 6.125 11/1/2026MML High Yield Fund FIXED INCOME TARGA RESOURCES PARTNERS 32,175 33,000 0.03 5 1/15/2028MML High Yield Fund FIXED INCOME JBS INVESTMENTS II GMBH 416,325 390,000 0.35 7 1/15/2026MML High Yield Fund EQUITY JUPITER RESOURCES INC. 143,705 191,606 0.12 0MML High Yield Fund FIXED INCOME FORD MOTOR CREDIT CO LLC 204,500 200,000 0.17 5.596 1/7/2022MML High Yield Fund FIXED INCOME ACRISURE LLC / FIN INC 533,178 509,000 0.45 8.125 2/15/2024MML High Yield Fund FIXED INCOME TRANSDIGM INC 329,997 316,000 0.28 6.25 3/15/2026MML High Yield Fund FIXED INCOME COMMSCOPE INC 280,800 270,000 0.24 8.25 3/1/2027MML High Yield Fund FIXED INCOME XPO LOGISTICS INC 758,387 716,000 0.64 6.75 8/15/2024MML High Yield Fund FIXED INCOME SCIENTIFIC GAMES INTERNA 38,631 37,000 0.03 8.25 3/15/2026MML High Yield Fund FIXED INCOME WESTERN DIGITAL CORP 112,646 104,000 0.09 4.75 2/15/2026MML High Yield Fund FIXED INCOME JBS USA LUX/JBS USA FIN 896,034 824,000 0.75 6.75 2/15/2028MML High Yield Fund FIXED INCOME APEX TOOL / BC MOUNTAIN 648,425 701,000 0.55 9 2/15/2023MML High Yield Fund FIXED INCOME SPRINT CORP 466,437 386,000 0.39 7.625 3/1/2026MML High Yield Fund FIXED INCOME PRIME SECSRVC BRW/FINANC 812,025 802,000 0.68 6.25 1/15/2028MML High Yield Fund FIXED INCOME TARGA RESOURCES PARTNERS 65,252 61,000 0.05 6.875 1/15/2029MML High Yield Fund FIXED INCOME CENTENE CORP 241,106 232,000 0.20 5.25 4/1/2025MML High Yield Fund FIXED INCOME RADIOLOGY PARTNERS INC 312,000 300,000 0.26 9.25 2/1/2028MML High Yield Fund FIXED INCOME JUPITER RES INC 225,280 231,906 0.19 10 1/31/2024MML High Yield Fund FIXED INCOME CCO HLDGS LLC/CAP CORP 737,132 702,000 0.62 4.5 8/15/2030MML High Yield Fund FIXED INCOME OCCIDENTAL PETROLEUM COR 21,313 31,000 0.02 4.2 3/15/2048MML High Yield Fund FIXED INCOME BAUSCH HEALTH AMERICAS 660,000 600,000 0.56 9.25 4/1/2026MML High Yield Fund EQUITY FIELDWOOD 130 13,011 0.00 0MML High Yield Fund FIXED INCOME ASP TPI HLDGS INC 157,476 161,721 0.13 0 10/17/2024MML High Yield Fund FIXED INCOME FIELDWOOD ENERGY LLC 89 387,384 0.00 0 4/11/2023MML High Yield Fund FIXED INCOME CONTINENTAL RESOURCES 145,530 168,000 0.12 4.375 1/15/2028MML High Yield Fund FIXED INCOME NEPTUNE ENERGY BONDCO 529,800 594,000 0.45 6.625 5/15/2025MML High Yield Fund FIXED INCOME CONSOLIDATED ENERGY FIN S A 802,867 883,485 0.68 0 5/7/2025MML High Yield Fund FIXED INCOME CENTENE CORP 54,795 52,000 0.05 5.375 6/1/2026MML High Yield Fund FIXED INCOME BAUSCH HEALTH AMERICAS 274,688 250,000 0.23 8.5 1/31/2027MML High Yield Fund FIXED INCOME FIELDWOOD ENERGY LLC - - - 0 4/11/2022MML High Yield Fund EQUITY FIELDWOOD ENERGY LLC 32 3,193 0.00 0MML High Yield Fund FIXED INCOME BANFF MERGER SUB INC 833,457 860,644 0.70 0 10/2/2025MML High Yield Fund FIXED INCOME SIMMONS FOODS INC 104,750 100,000 0.09 7.75 1/15/2024

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML High Yield Fund FIXED INCOME TENET HEALTHCARE CORP 402,000 400,000 0.34 4.625 7/15/2024MML High Yield Fund FIXED INCOME PGT INNOVATIONS INC 391,920 368,000 0.33 6.75 8/1/2026MML High Yield Fund FIXED INCOME BANFF MERGER SUB INC 492,609 466,000 0.41 9.75 9/1/2026MML High Yield Fund FIXED INCOME APACHE CORP 118,950 130,000 0.10 4.375 10/15/2028MML High Yield Fund FIXED INCOME MIDCONTINENT COMM + FIN 210,638 205,000 0.18 5.375 8/15/2027MML High Yield Fund FIXED INCOME PAR PHARMACEUTICAL INC 658,991 629,000 0.55 7.5 4/1/2027MML High Yield Fund FIXED INCOME SS+C TECHNOLOGIES INC 765,158 720,000 0.64 5.5 9/30/2027MML High Yield Fund FIXED INCOME CLARIOS GLOBAL LP/US FIN 482,178 467,000 0.41 8.5 5/15/2027MML High Yield Fund FIXED INCOME VIASAT INC 202,664 197,000 0.17 5.625 4/15/2027MML High Yield Fund FIXED INCOME JBS USA/FOOD/FINANCE 1,214,307 1,094,000 1.02 6.5 4/15/2029MML High Yield Fund FIXED INCOME ENLINK MIDSTREAM LLC 140,130 173,000 0.12 5.375 6/1/2029MML High Yield Fund FIXED INCOME NETFLIX INC 616,434 523,000 0.52 5.375 11/15/2029MML High Yield Fund FIXED INCOME NETFLIX INC 709,957 595,000 0.60 5.875 11/15/2028MML High Yield Fund FIXED INCOME CDK GLOBAL INC 70,290 66,000 0.06 5.25 5/15/2029MML High Yield Fund FIXED INCOME NRG ENERGY INC 406,725 374,000 0.34 5.25 6/15/2029MML High Yield Fund FIXED INCOME AMSTED INDUSTRIES 656,377 617,000 0.55 5.625 7/1/2027MML High Yield Fund FIXED INCOME VISTRA CORP 619,985 568,000 0.52 4.3 7/15/2029MML High Yield Fund FIXED INCOME SIRIUS XM RADIO INC 242,385 226,000 0.20 5.5 7/1/2029MML High Yield Fund FIXED INCOME APACHE CORP 173,853 197,000 0.15 5.35 7/1/2049MML High Yield Fund FIXED INCOME PARKLAND CORP 259,659 247,000 0.22 5.875 7/15/2027MML High Yield Fund FIXED INCOME ADIENT GLOBAL HOLDINGS 161,925 170,000 0.14 4.875 8/15/2026MML High Yield Fund FIXED INCOME KRAFT HEINZ FOODS CO 194,595 178,000 0.16 5.2 7/15/2045MML High Yield Fund FIXED INCOME DISH DBS CORP 238,561 217,000 0.20 7.75 7/1/2026MML High Yield Fund FIXED INCOME ZIGGO BV 460,900 440,000 0.39 5.5 1/15/2027MML High Yield Fund FIXED INCOME BY CROWN PARENT LLC 193,865 191,000 0.16 7.375 10/15/2024MML High Yield Fund FIXED INCOME SERVICE PROPERTIES TRUST 51,620 58,000 0.04 4.95 2/15/2027MML High Yield Fund FIXED INCOME LPL HOLDINGS INC 90,148 87,000 0.08 5.75 9/15/2025MML High Yield Fund FIXED INCOME FIRST QUANTUM MINERALS L 658,176 659,000 0.55 7.25 4/1/2023MML High Yield Fund FIXED INCOME FIRST QUANTUM MINERALS L 639,954 647,000 0.54 7.5 4/1/2025MML High Yield Fund FIXED INCOME MAUSER PACKAGING SOLUT 735,116 781,000 0.62 7.25 4/15/2025MML High Yield Fund FIXED INCOME NRG ENERGY INC 742,365 702,000 0.62 6.625 1/15/2027MML High Yield Fund FIXED INCOME BWAY HLDG CO 1,109,730 1,184,496 0.93 0 4/3/2024MML High Yield Fund FIXED INCOME JBS USA LLC/JBS USA FINA 329,492 323,000 0.28 5.875 7/15/2024MML High Yield Fund FIXED INCOME COMPASS MINERALS INTERNA 299,942 294,000 0.25 4.875 7/15/2024MML High Yield Fund FIXED INCOME HILCORP ENERGY I/HILCORP 71,693 79,000 0.06 5 12/1/2024MML High Yield Fund FIXED INCOME FORD MOTOR CREDIT CO LLC 195,705 200,000 0.16 3.664 9/8/2024MML High Yield Fund FIXED INCOME CONTINENTAL RESOURCES 137,453 149,000 0.12 3.8 6/1/2024MML High Yield Fund FIXED INCOME TRIUMPH GROUP INC 250,100 305,000 0.21 5.25 6/1/2022MML High Yield Fund FIXED INCOME SPRINT CORP 1,592,168 1,386,000 1.34 7.875 9/15/2023MML High Yield Fund FIXED INCOME BAUSCH HEALTH COS INC 139,475 140,000 0.12 5.5 3/1/2023MML High Yield Fund FIXED INCOME CORE + MAIN HOLDING LP 156,163 155,000 0.13 8.625 9/15/2024MML High Yield Fund FIXED INCOME OCCIDENTAL PETROLEUM COR 455,730 550,000 0.38 6.2 3/15/2040MML High Yield Fund FIXED INCOME OCCIDENTAL PETROLEUM COR 85,166 88,000 0.07 6.95 7/1/2024MML High Yield Fund FIXED INCOME OCCIDENTAL PETROLEUM COR 183,288 215,000 0.15 6.45 9/15/2036MML High Yield Fund FIXED INCOME OCCIDENTAL PETROLEUM COR 57,966 81,000 0.05 4.5 7/15/2044MML High Yield Fund FIXED INCOME OCCIDENTAL PETROLEUM COR 303,160 352,000 0.26 6.6 3/15/2046MML High Yield Fund FIXED INCOME CCO HLDGS LLC/CAP CORP 249,865 236,000 0.21 4.75 3/1/2030MML High Yield Fund FIXED INCOME LIVE NATION ENTERTAINMEN 381,180 407,000 0.32 4.75 10/15/2027

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML High Yield Fund FIXED INCOME ZIGGO BV 158,355 153,000 0.13 4.875 1/15/2030MML High Yield Fund FIXED INCOME NETFLIX INC 365,940 321,000 0.31 4.875 6/15/2030MML High Yield Fund FIXED INCOME LCPR SR SECURED FIN DAC 328,130 314,000 0.28 6.75 10/15/2027MML High Yield Fund FIXED INCOME SIGNATURE AVIATION US 605,430 651,000 0.51 4 3/1/2028MML High Yield Fund FIXED INCOME ONEMAIN FINANCE CORP 574,080 552,000 0.48 5.375 11/15/2029MML High Yield Fund FIXED INCOME LPL HOLDINGS INC 349,460 346,000 0.29 4.625 11/15/2027MML High Yield Fund FIXED INCOME SCIENTIFIC GAMES INTERNA 189,805 187,000 0.16 7.25 11/15/2029MML High Yield Fund FIXED INCOME TARGA RESOURCES PARTNERS 28,029 28,000 0.02 5.5 3/1/2030MML High Yield Fund FIXED INCOME UNIVAR SOLUTIONS USA INC 260,668 254,000 0.22 5.125 12/1/2027MML High Yield Fund FIXED INCOME MATTEL INC 241,080 224,000 0.20 5.875 12/15/2027MML High Yield Fund FIXED INCOME GATES GLOBAL/GATES CORP 721,553 700,000 0.61 6.25 1/15/2026MML High Yield Fund FIXED INCOME COMPASS MINERALS INTERNA 378,000 350,000 0.32 6.75 12/1/2027MML High Yield Fund FIXED INCOME CENTURYLINK INC 540,407 526,000 0.45 5.125 12/15/2026MML High Yield Fund FIXED INCOME WYNN MACAU LTD 257,139 268,000 0.22 5.125 12/15/2029MML High Yield Fund FIXED INCOME TERRIER MEDIA BUYER INC 526,923 523,000 0.44 8.875 12/15/2027MML High Yield Fund FIXED INCOME ALLIANCE DATA SYSTEMS CO 718,909 767,000 0.61 4.75 12/15/2024MML High Yield Fund FIXED INCOME BAUSCH HEALTH COS INC 315,200 320,000 0.27 5.25 1/30/2030MML High Yield Fund FIXED INCOME BAUSCH HEALTH COS INC 433,178 446,000 0.36 5 1/30/2028MML High Yield Fund FIXED INCOME FORD MOTOR CREDIT CO LLC 90,150 92,000 0.08 3.087 1/9/2023MML High Yield Fund FIXED INCOME NABORS INDUSTRIES LTD 90,620 184,000 0.08 7.25 1/15/2026MML High Yield Fund FIXED INCOME NABORS INDUSTRIES LTD 57,269 119,000 0.05 7.5 1/15/2028MML High Yield Fund FIXED INCOME ALTICE FINANCING SA 306,915 316,000 0.26 5 1/15/2028MML High Yield Fund FIXED INCOME WESTERN MIDSTREAM OPERAT 141,123 145,000 0.12 5.05 2/1/2030MML High Yield Fund FIXED INCOME CVR ENERGY INC 1,124,550 1,323,000 0.95 5.75 2/15/2028MML High Yield Fund FIXED INCOME LAREDO PETROLEUM INC 194,700 330,000 0.16 10.125 1/15/2028MML High Yield Fund FIXED INCOME LAREDO PETROLEUM INC 159,707 268,000 0.13 9.5 1/15/2025MML High Yield Fund FIXED INCOME HUGHES SATELLITE SYSTEMS 743,471 687,000 0.63 6.625 8/1/2026MML High Yield Fund FIXED INCOME FINASTRA USA, INC. 1,311,100 1,400,000 1.10 0 6/13/2025MML High Yield Fund FIXED INCOME WYNN LAS VEGAS LLC/CORP 358,050 385,000 0.30 5.25 5/15/2027MML High Yield Fund FIXED INCOME SUNCOKE ENGY PART FIN CO 684,633 759,000 0.58 7.5 6/15/2025MML High Yield Fund FIXED INCOME KAR AUCTION SERVICES INC 474,991 475,000 0.40 5.125 6/1/2025MML High Yield Fund FIXED INCOME CONSOLIDATED ENERGY FIN 832,650 915,000 0.70 6.875 6/15/2025MML High Yield Fund FIXED INCOME CORE + MAIN LP 317,046 313,000 0.27 6.125 8/15/2025MML High Yield Fund FIXED INCOME CENOVUS ENERGY INC 84,079 93,000 0.07 4.25 4/15/2027MML High Yield Fund FIXED INCOME GENESIS ENERGY LP/FIN 380,600 440,000 0.32 6.5 10/1/2025MML High Yield Fund FIXED INCOME DISH NETWORK CORP 624,238 680,000 0.53 3.375 8/15/2026MML High Yield Fund FIXED INCOME MPT OPER PARTNERSP/FINL 562,015 539,000 0.47 5 10/15/2027MML High Yield Fund FIXED INCOME ALLISON TRANSMISSION INC 605,934 589,000 0.51 4.75 10/1/2027MML High Yield Fund FIXED INCOME JONAH NRG LLC/FINANCE 82,881 745,000 0.07 7.25 10/15/2025MML High Yield Fund FIXED INCOME CAESARS RESORT / FINCO 257,355 266,000 0.22 5.25 10/15/2025MML High Yield Fund FIXED INCOME SCIENTIFIC GAMES INTERNA 205,020 204,000 0.17 5 10/15/2025MML High Yield Fund FIXED INCOME NORTHWEST ACQ/DOMINION 14,144 884,000 0.01 7.125 11/1/2022MML High Yield Fund FIXED INCOME SERVICE PROPERTIES TRUST 60,590 73,000 0.05 3.95 1/15/2028MML High Yield Fund FIXED INCOME WARRIOR MET COAL INC 543,847 534,000 0.46 8 11/1/2024MML High Yield Fund FIXED INCOME ACRISURE LLC / FIN INC 678,821 691,000 0.57 7 11/15/2025MML High Yield Fund FIXED INCOME FINASTRA USA, INC. 857,712 919,552 0.72 0 6/13/2024MML High Yield Fund FIXED INCOME WELLTEC A/S 612,480 696,000 0.52 9.5 12/1/2022MML High Yield Fund FIXED INCOME JAMES HARDIE INTL FIN 128,678 126,000 0.11 4.75 1/15/2025

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML High Yield Fund FIXED INCOME JAMES HARDIE INTL FIN 505,613 485,000 0.43 5 1/15/2028MML High Yield Fund FIXED INCOME VALVOLINE INC 161,514 157,000 0.14 4.375 8/15/2025MML High Yield Fund FIXED INCOME CENOVUS ENERGY INC 116,589 138,000 0.10 5.4 6/15/2047MML High Yield Fund FIXED INCOME STANDARD INDUSTRIES INC 602,788 581,000 0.51 4.75 1/15/2028MML High Yield Fund FIXED INCOME MATTEL INC 321,775 305,000 0.27 6.75 12/31/2025MML High Yield Fund FIXED INCOME TRIUMPH GROUP INC 797,074 1,243,000 0.67 7.75 8/15/2025MML High Yield Fund FIXED INCOME ICAHN ENTERPRISES/FIN 782,281 761,000 0.66 6.375 12/15/2025MML High Yield Fund FIXED INCOME SERVICE PROPERTIES TRUST 95,450 115,000 0.08 4.375 2/15/2030MML High Yield Fund FIXED INCOME TENET HEALTHCARE CORP 340,375 350,000 0.29 6.125 10/1/2028MML High Yield Fund FIXED INCOME HUDBAY MINERALS INC 145,530 147,000 0.12 6.125 4/1/2029MML High Yield Fund FIXED INCOME BIG RIVER STEEL/BRS FIN 256,832 254,000 0.22 6.625 1/31/2029MML High Yield Fund FIXED INCOME LBC TANK TERMINAL HLDING 1,102,668 1,111,000 0.93 6.875 5/15/2023MML High Yield Fund FIXED INCOME ANTERO RESOURCES CORP 389,500 410,000 0.33 5.375 11/1/2021MML High Yield Fund FIXED INCOME CF INDUSTRIES INC 73,258 63,000 0.06 4.95 6/1/2043MML High Yield Fund FIXED INCOME BUCKEYE PARTNERS LP 61,139 66,000 0.05 5.85 11/15/2043MML High Yield Fund FIXED INCOME TENET HEALTHCARE CORP 378,046 340,000 0.32 8.125 4/1/2022MML High Yield Fund FIXED INCOME CF INDUSTRIES INC 288,811 240,000 0.24 5.375 3/15/2044MML High Yield Fund FIXED INCOME WESTERN MIDSTREAM OPERAT 172,710 202,000 0.15 5.45 4/1/2044MML High Yield Fund FIXED INCOME TELECOM ITALIA SPA 634,345 586,000 0.53 5.303 5/30/2024MML High Yield Fund FIXED INCOME GRAPHIC PACKAGING INTERN 193,515 194,000 0.16 3.5 3/15/2028MML High Yield Fund FIXED INCOME ICAHN ENTERPRISES/FIN 142,763 141,000 0.12 4.75 9/15/2024MML High Yield Fund FIXED INCOME SCIENCE APPLICATIONS INT 191,890 189,000 0.16 4.875 4/1/2028MML High Yield Fund FIXED INCOME CCO HLDGS LLC/CAP CORP 675,306 647,000 0.57 4.5 5/1/2032MML High Yield Fund FIXED INCOME TRANSDIGM INC 277,313 255,000 0.23 8 12/15/2025MML High Yield Fund FIXED INCOME FORD MOTOR COMPANY 340,080 312,000 0.29 8.5 4/21/2023MML High Yield Fund FIXED INCOME FORD MOTOR COMPANY 937,448 726,000 0.79 9.625 4/22/2030MML High Yield Fund FIXED INCOME FORD MOTOR COMPANY 276,309 241,000 0.23 9 4/22/2025MML High Yield Fund FIXED INCOME GRIFFON CORPORATION 220,248 211,000 0.19 5.75 3/1/2028MML High Yield Fund FIXED INCOME CENTENE CORP 990,210 918,000 0.83 4.625 12/15/2029MML High Yield Fund FIXED INCOME XPO LOGISTICS INC 374,015 350,000 0.31 6.25 5/1/2025MML High Yield Fund FIXED INCOME CENTENE CORP 252,190 241,000 0.21 4.25 12/15/2027MML High Yield Fund FIXED INCOME CLEAR CHANNEL WORLDWIDE 203,574 210,000 0.17 9.25 2/15/2024MML High Yield Fund FIXED INCOME KRAFT HEINZ FOODS CO 223,819 204,000 0.19 4.25 3/1/2031MML High Yield Fund FIXED INCOME KRAFT HEINZ FOODS CO 264,803 250,000 0.22 3.875 5/15/2027MML High Yield Fund FIXED INCOME M/I HOMES INC 379,040 368,000 0.32 4.95 2/1/2028MML High Yield Fund FIXED INCOME PBF HOLDING CO LLC 84,052 82,000 0.07 9.25 5/15/2025MML High Yield Fund FIXED INCOME CLARK EQUIPMENT CO 301,549 291,000 0.25 5.875 6/1/2025MML High Yield Fund FIXED INCOME NORTHWEST FIBER LLC/NORT 131,890 121,000 0.11 10.75 6/1/2028MML High Yield Fund FIXED INCOME BRUNSWICK CORP 329,425 285,000 0.28 7.375 9/1/2023MML High Yield Fund FIXED INCOME BRUNSWICK CORP 701,976 569,000 0.59 7.125 8/1/2027MML High Yield Fund CASH US DOLLAR 2,335,939 2,335,939 1.97 0MML High Yield Fund FIXED INCOME FORD MOTOR COMPANY 544,570 472,000 0.46 7.45 7/16/2031MML High Yield Fund FIXED INCOME OVINTIV INC 16,972 17,000 0.01 7.375 11/1/2031MML High Yield Fund FIXED INCOME OVINTIV INC 28,728 29,000 0.02 7.2 11/1/2031MML High Yield Fund FIXED INCOME SPRINT CAPITAL CORP 184,440 126,000 0.16 8.75 3/15/2032MML High Yield Fund FIXED INCOME OVINTIV INC 100,572 108,000 0.08 6.5 8/15/2034MML High Yield Fund FIXED INCOME TELECOM ITALIA CAPITAL 174,000 150,000 0.15 6 9/30/2034MML High Yield Fund FIXED INCOME DCP MIDSTREAM OPERATING 9,583 10,000 0.01 6.45 11/3/2036

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML High Yield Fund FIXED INCOME OVINTIV INC 42,682 47,000 0.04 6.5 2/1/2038MML High Yield Fund FIXED INCOME CENOVUS ENERGY INC 155,829 155,000 0.13 6.75 11/15/2039MML High Yield Fund FIXED INCOME APACHE CORP 116,431 130,000 0.10 5.1 9/1/2040MML High Yield Fund FIXED INCOME FORD MOTOR CREDIT CO LLC 286,269 281,000 0.24 5.875 8/2/2021MML High Yield Fund FIXED INCOME APACHE CORP 57,809 65,000 0.05 4.75 4/15/2043MML High Yield Fund FIXED INCOME KINROSS GOLD CORP 623,253 476,000 0.52 6.875 9/1/2041MML High Yield Fund FIXED INCOME OCCIDENTAL PETROLEUM COR 59,475 65,000 0.05 2.7 2/15/2023MML High Yield Fund FIXED INCOME KRAFT HEINZ FOODS CO 275,928 206,000 0.23 6.875 1/26/2039MML High Yield Fund FIXED INCOME KRAFT HEINZ FOODS CO 119,466 94,000 0.10 6.5 2/9/2040MML High Yield Fund FIXED INCOME DISH DBS CORP 211,140 207,000 0.18 5 3/15/2023MML High Yield Fund FIXED INCOME NOVELIS CORP 409,586 417,000 0.34 4.75 1/30/2030MML High Yield Fund EQUITY PINNACLE OPERATING CORPORATION - 178,174 - 0MML High Yield Fund FIXED INCOME PBF HOLDING CO LLC 989,128 1,474,000 0.83 6 2/15/2028MML High Yield Fund FIXED INCOME MEG ENERGY CORP 339,899 379,000 0.29 7.125 2/1/2027MML High Yield Fund FIXED INCOME GLOBAL AIR LEASE CO LTD 1,056,630 1,895,301 0.89 6.5 9/15/2024MML High Yield Fund FIXED INCOME FORD MOTOR CREDIT CO LLC 1,036,538 1,039,000 0.87 4.542 8/1/2026MML High Yield Fund FIXED INCOME OCCIDENTAL PETROLEUM COR 78,904 93,000 0.07 2.9 8/15/2024MML High Yield Fund FIXED INCOME OCCIDENTAL PETROLEUM COR 54,608 78,000 0.05 4.4 8/15/2049MML High Yield Fund FIXED INCOME OCCIDENTAL PETROLEUM COR 152,302 163,000 0.13 2.7 8/15/2022MML High Yield Fund FIXED INCOME CLEAR CHANNEL WORLDWIDE 300,558 313,000 0.25 5.125 8/15/2027MML High Yield Fund FIXED INCOME TENET HEALTHCARE CORP 325,623 323,000 0.27 4.625 9/1/2024MML High Yield Fund FIXED INCOME TRIUMPH GROUP INC 260,418 306,000 0.22 6.25 9/15/2024MML High Yield Fund FIXED INCOME ESH HOSPITALITY INC 380,733 388,000 0.32 4.625 10/1/2027MML High Yield Fund FIXED INCOME KRAFT HEINZ FOODS CO 133,095 126,000 0.11 3.75 4/1/2030MML High Yield Fund FIXED INCOME WEEKLEY HOMES LLC/ FINAN 153,520 152,000 0.13 4.875 9/15/2028MML High Yield Fund FIXED INCOME CORNERSTONE BUILDING 173,204 171,000 0.15 6.125 1/15/2029MML High Yield Fund FIXED INCOME AVAYA INC 265,096 260,000 0.22 6.125 9/15/2028MML High Yield Fund FIXED INCOME MOLINA HEALTHCARE INC 204,100 200,000 0.17 4.375 6/15/2028MML High Yield Fund FIXED INCOME WESCO DISTRIBUTION INC 264,058 241,000 0.22 7.25 6/15/2028MML High Yield Fund FIXED INCOME WESCO DISTRIBUTION INC 253,807 233,000 0.21 7.125 6/15/2025MML High Yield Fund FIXED INCOME VIRGIN MEDIA FINANCE PLC 146,265 147,000 0.12 5 7/15/2030MML High Yield Fund FIXED INCOME CSC HOLDINGS LLC 487,630 484,000 0.41 4.625 12/1/2030MML High Yield Fund FIXED INCOME CEMEX SAB DE CV 380,340 352,000 0.32 7.375 6/5/2027MML High Yield Fund FIXED INCOME ENDEAVOR ENERGY RESOURCE 303,113 295,000 0.26 6.625 7/15/2025MML High Yield Fund FIXED INCOME TRI POINTE GROUP INC 167,535 153,000 0.14 5.7 6/15/2028MML High Yield Fund FIXED INCOME SERVICE PROPERTIES TRUST 496,281 467,000 0.42 7.5 9/15/2025MML High Yield Fund FIXED INCOME RHP HOTEL PPTY/RHP FINAN 391,816 425,000 0.33 4.75 10/15/2027MML High Yield Fund FIXED INCOME TRANSDIGM INC 925,491 963,000 0.78 5.5 11/15/2027MML High Yield Fund FIXED INCOME EQM MIDSTREAM PARTNERS L 187,688 182,000 0.16 6 7/1/2025MML High Yield Fund FIXED INCOME EQM MIDSTREAM PARTNERS L 160,063 151,000 0.13 6.5 7/1/2027MML High Yield Fund FIXED INCOME SCIENTIFIC GAMES INTERNA 153,391 147,000 0.13 8.625 7/1/2025MML High Yield Fund FIXED INCOME DCP MIDSTREAM OPERATING 220,968 216,000 0.19 5.625 7/15/2027MML High Yield Fund FIXED INCOME IRON MOUNTAIN INC 315,878 303,000 0.27 5.25 7/15/2030MML High Yield Fund FIXED INCOME VIASAT INC 387,561 387,000 0.33 6.5 7/15/2028MML High Yield Fund FIXED INCOME PG+E CORP 279,608 289,000 0.24 5.25 7/1/2030MML High Yield Fund FIXED INCOME PG+E CORP 549,990 567,000 0.46 5 7/1/2028MML High Yield Fund FIXED INCOME RADIATE HOLDCO / FINANCE 396,917 397,000 0.33 4.5 9/15/2026MML High Yield Fund FIXED INCOME RADIATE HOLDCO / FINANCE 514,431 502,000 0.43 6.5 9/15/2028

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML High Yield Fund FIXED INCOME UBER TECHNOLOGIES INC 178,733 174,000 0.15 6.25 1/15/2028MML High Yield Fund FIXED INCOME CEMEX SAB DE CV 219,068 218,000 0.18 5.2 9/17/2030MML High Yield Fund FIXED INCOME PARK INTERMED HOLDINGS 107,730 108,000 0.09 5.875 10/1/2028MML High Yield Fund FIXED INCOME SPECIALTY BUILDING PRODU 196,378 193,000 0.17 6.375 9/30/2026MML High Yield Fund FIXED INCOME FIRST QUANTUM MINERALS L 771,000 800,000 0.65 6.875 10/15/2027MML High Yield Fund FIXED INCOME CONSOLIDATED COMMUNICATI 398,820 391,000 0.34 6.5 10/1/2028MML High Yield Fund FIXED INCOME ENCOMPASS HEALTH CORP 189,000 189,000 0.16 4.625 4/1/2031MML High Yield Fund FIXED INCOME KORN/FERRY INTERNATIONAL 95,950 95,000 0.08 4.625 12/15/2027MML High Yield Fund FIXED INCOME CAESARS ENTERTAIN INC 469,580 443,000 0.40 8.125 7/1/2027MML High Yield Fund FIXED INCOME CAESARS RESORT / FINCO 249,563 242,000 0.21 5.75 7/1/2025MML High Yield Fund FIXED INCOME CAESARS ENTERTAIN INC 451,546 432,000 0.38 6.25 7/1/2025MML High Yield Fund FIXED INCOME COMMSCOPE INC 205,500 200,000 0.17 7.125 7/1/2028MML High Yield Fund FIXED INCOME CHENIERE ENERGY PARTNERS 277,984 271,000 0.23 4.5 10/1/2029MML High Yield Fund FIXED INCOME MILEAGE PLUS HLDINGS LLC 275,931 265,000 0.23 6.5 6/20/2027MML High Yield Fund FIXED INCOME VERTICAL US NEWCO INC 87,298 84,000 0.07 5.25 7/15/2027MML High Yield Fund FIXED INCOME NEW ENTERPRISE STONE + L 348,840 323,000 0.29 9.75 7/15/2028MML High Yield Fund FIXED INCOME FORTERRA FIN LLC/FRTA FI 158,483 150,000 0.13 6.5 7/15/2025MML High Yield Fund FIXED INCOME DIEBOLD NIXDORF INC 712,125 675,000 0.60 9.375 7/15/2025MML High Yield Fund FIXED INCOME FREEPORT MCMORAN INC 371,190 359,000 0.31 4.375 8/1/2028MML High Yield Fund FIXED INCOME FREEPORT MCMORAN INC 630,870 600,000 0.53 4.625 8/1/2030MML High Yield Fund FIXED INCOME WYNDHAM DESTINATIONS INC 223,141 213,000 0.19 6.625 7/31/2026MML High Yield Fund FIXED INCOME UNITED RENTALS NORTH AM 170,520 168,000 0.14 3.875 2/15/2031MML High Yield Fund FIXED INCOME CSC HOLDINGS LLC 484,125 500,000 0.41 3.375 2/15/2031MML High Yield Fund FIXED INCOME PENSKE AUTOMOTIVE GROUP 497,963 500,000 0.42 3.5 9/1/2025MML High Yield Fund FIXED INCOME HARVEST MIDSTREAM I LP 226,860 228,000 0.19 7.5 9/1/2028MML High Yield Fund FIXED INCOME TRIUMPH GROUP INC 496,290 466,000 0.42 8.875 6/1/2024MML High Yield Fund FIXED INCOME STL HOLDING CO LLC 441,650 440,000 0.37 7.5 2/15/2026MML High Yield Fund FIXED INCOME WYNDHAM HOTELS + RESORTS 179,450 185,000 0.15 4.375 8/15/2028MML High Yield Fund FIXED INCOME CLEARWATER PAPER CORP 230,575 230,000 0.19 4.75 8/15/2028MML High Yield Fund FIXED INCOME WINDSTREAM ESCROW LLC 113,970 116,000 0.10 7.75 8/15/2028MML High Yield Fund FIXED INCOME TARGA RESOURCES PARTNERS 285,685 295,000 0.24 4.875 2/1/2031MML High Yield Fund FIXED INCOME OCCIDENTAL PETROLEUM COR 163,130 178,000 0.14 5.875 9/1/2025MML High Yield Fund FIXED INCOME OCCIDENTAL PETROLEUM COR 168,477 182,000 0.14 6.375 9/1/2028MML High Yield Fund FIXED INCOME FORD MOTOR CREDIT CO LLC 281,053 289,000 0.24 4.125 8/17/2027MML High Yield Fund FIXED INCOME VERITAS US INC/BERMUDA L 721,875 700,000 0.61 7.5 9/1/2025MML High Yield Fund FIXED INCOME NCR CORP 113,000 113,000 0.10 5.25 10/1/2030MML High Yield Fund FIXED INCOME NCR CORP 235,188 235,000 0.20 5 10/1/2028MML High Yield Fund FIXED INCOME PIKE CORP 449,767 447,000 0.38 5.5 9/1/2028MML High Yield Fund FIXED INCOME CARLSON TRAVEL INC 223,480 296,000 0.19 6.75 12/15/2025MML High Yield Fund FIXED INCOME CARLSON TRAVEL INC 595,181 988,000 0.50 11.5 12/15/2026MML Fundamental Value Fund EQUITY LOWE S COS INC 1,906,561 11,495 0.98 0MML Fundamental Value Fund EQUITY MARSH + MCLENNAN COS 1,687,466 14,712 0.87 0MML Fundamental Value Fund EQUITY JOHNSON + JOHNSON 7,302,266 49,048 3.76 0MML Fundamental Value Fund EQUITY HARLEY DAVIDSON INC 903,121 36,802 0.47 0MML Fundamental Value Fund EQUITY KROGER CO 2,906,935 85,725 1.50 0MML Fundamental Value Fund EQUITY DEERE + CO 3,396,701 15,326 1.75 0MML Fundamental Value Fund EQUITY CATERPILLAR INC 2,558,967 17,157 1.32 0MML Fundamental Value Fund EQUITY SCHLUMBERGER LTD 835,043 53,666 0.43 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Fundamental Value Fund EQUITY AUTOZONE INC 3,973,357 3,374 2.05 0MML Fundamental Value Fund EQUITY HUNTINGTON BANCSHARES INC 1,578,487 172,136 0.81 0MML Fundamental Value Fund EQUITY NEWMONT CORP 1,337,082 21,073 0.69 0MML Fundamental Value Fund EQUITY WILLIAMS SONOMA INC 821,919 9,088 0.42 0MML Fundamental Value Fund EQUITY FIFTH THIRD BANCORP 1,103,630 51,765 0.57 0MML Fundamental Value Fund EQUITY PROGRESSIVE CORP 3,748,269 39,593 1.93 0MML Fundamental Value Fund EQUITY MCKESSON CORP 2,258,523 15,165 1.16 0MML Fundamental Value Fund EQUITY MOHAWK INDUSTRIES INC 1,491,858 15,287 0.77 0MML Fundamental Value Fund EQUITY RENAISSANCERE HOLDINGS LTD 914,389 5,387 0.47 0MML Fundamental Value Fund CASH SWISS FRANC 19,903 18,332 0.01 0MML Fundamental Value Fund EQUITY EDISON INTERNATIONAL 1,932,276 38,007 1.00 0MML Fundamental Value Fund EQUITY EVEREST RE GROUP LTD 1,953,473 9,889 1.01 0MML Fundamental Value Fund EQUITY CUMMINS INC 1,753,895 8,306 0.90 0MML Fundamental Value Fund EQUITY FMC CORP 1,272,720 12,017 0.66 0MML Fundamental Value Fund EQUITY FIRSTENERGY CORP 1,010,420 35,194 0.52 0MML Fundamental Value Fund EQUITY LAM RESEARCH CORP 2,960,205 8,923 1.53 0MML Fundamental Value Fund EQUITY LENNAR CORP A 1,894,323 23,192 0.98 0MML Fundamental Value Fund EQUITY NORTHROP GRUMMAN CORP 1,084,339 3,437 0.56 0MML Fundamental Value Fund EQUITY UNION PACIFIC CORP 1,668,080 8,473 0.86 0MML Fundamental Value Fund EQUITY KANSAS CITY SOUTHERN 1,001,437 5,538 0.52 0MML Fundamental Value Fund EQUITY ON SEMICONDUCTOR CORP 297,435 13,713 0.15 0MML Fundamental Value Fund EQUITY CRH PLC SPONSORED ADR 1,136,113 31,480 0.59 0MML Fundamental Value Fund EQUITY JPMORGAN CHASE + CO 7,597,243 78,916 3.92 0MML Fundamental Value Fund EQUITY ZIMMER BIOMET HOLDINGS INC 1,098,922 8,072 0.57 0MML Fundamental Value Fund EQUITY AMERISOURCEBERGEN CORP 2,139,412 22,074 1.10 0MML Fundamental Value Fund EQUITY CONOCOPHILLIPS 2,408,124 73,329 1.24 0MML Fundamental Value Fund EQUITY CENTERPOINT ENERGY INC 1,477,450 76,354 0.76 0MML Fundamental Value Fund EQUITY LKQ CORP 937,385 33,804 0.48 0MML Fundamental Value Fund EQUITY YAMANA GOLD INC 1,500,275 264,133 0.77 0MML Fundamental Value Fund EQUITY KINROSS GOLD CORP 889,365 100,835 0.46 0MML Fundamental Value Fund EQUITY LAS VEGAS SANDS CORP 841,233 18,029 0.43 0MML Fundamental Value Fund EQUITY OWENS CORNING 2,210,659 32,127 1.14 0MML Fundamental Value Fund EQUITY AMERICAN INTERNATIONAL GROUP 2,476,544 89,958 1.28 0MML Fundamental Value Fund EQUITY MERCK + CO. INC. 2,269,180 27,356 1.17 0MML Fundamental Value Fund EQUITY LEAR CORP 618,532 5,672 0.32 0MML Fundamental Value Fund EQUITY BERKSHIRE HATHAWAY INC CL B 7,153,293 33,593 3.69 0MML Fundamental Value Fund EQUITY SS+C TECHNOLOGIES HOLDINGS 1,652,862 27,311 0.85 0MML Fundamental Value Fund EQUITY NXP SEMICONDUCTORS NV 2,342,684 18,770 1.21 0MML Fundamental Value Fund EQUITY HUNTINGTON INGALLS INDUSTRIE 604,521 4,295 0.31 0MML Fundamental Value Fund EQUITY CITIGROUP INC 1,530,189 35,495 0.79 0MML Fundamental Value Fund EQUITY MARATHON PETROLEUM CORP 1,985,408 67,669 1.02 0MML Fundamental Value Fund EQUITY FACEBOOK INC CLASS A 1,164,931 4,448 0.60 0MML Fundamental Value Fund EQUITY EATON CORP PLC 3,828,778 37,526 1.97 0MML Fundamental Value Fund EQUITY T MOBILE US INC 2,846,306 24,889 1.47 0MML Fundamental Value Fund EQUITY PARSLEY ENERGY INC CLASS A 840,594 89,807 0.43 0MML Fundamental Value Fund EQUITY ANTHEM INC 3,754,888 13,980 1.94 0MML Fundamental Value Fund EQUITY QORVO INC 1,361,314 10,552 0.70 0MML Fundamental Value Fund EQUITY MEDTRONIC PLC 3,068,550 29,528 1.58 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Fundamental Value Fund EQUITY ALPHABET INC CL A 3,236,045 2,208 1.67 0MML Fundamental Value Fund EQUITY CHUBB LTD 3,538,989 30,477 1.82 0MML Fundamental Value Fund EQUITY COCA COLA EUROPEAN PARTNERS 1,804,626 46,499 0.93 0MML Fundamental Value Fund EQUITY VISTRA CORP 1,429,701 75,806 0.74 0MML Fundamental Value Fund EQUITY TAPESTRY INC 1,110,871 71,073 0.57 0MML Fundamental Value Fund EQUITY WYNDHAM HOTELS + RESORTS INC 951,723 18,846 0.49 0MML Fundamental Value Fund EQUITY CIGNA CORP 4,577,628 27,021 2.36 0MML Fundamental Value Fund EQUITY AVANTOR INC 1,555,881 69,181 0.80 0MML Fundamental Value Fund EQUITY DUPONT DE NEMOURS INC 2,755,081 49,659 1.42 0MML Fundamental Value Fund EQUITY TRUIST FINANCIAL CORP 2,976,195 78,218 1.53 0MML Fundamental Value Fund EQUITY HOWMET AEROSPACE INC 904,535 54,099 0.47 0MML Fundamental Value Fund EQUITY OTIS WORLDWIDE CORP 1,045,535 16,750 0.54 0MML Fundamental Value Fund CASH EQUIVALENT FIXED INC CLEARING CORP.REPO 2,677,752 2,677,752 1.38 0 10/1/2020MML Fundamental Value Fund EQUITY BARRICK GOLD CORP 2,117,048 75,313 1.09 0MML Fundamental Value Fund EQUITY DOVER CORP 1,832,788 16,917 0.94 0MML Fundamental Value Fund EQUITY KLA CORP 1,762,647 9,098 0.91 0MML Fundamental Value Fund EQUITY PPG INDUSTRIES INC 919,751 7,534 0.47 0MML Fundamental Value Fund EQUITY TJX COMPANIES INC 1,564,377 28,111 0.81 0MML Fundamental Value Fund EQUITY AFLAC INC 1,350,839 37,162 0.70 0MML Fundamental Value Fund EQUITY SCHWAB (CHARLES) CORP 1,657,523 45,750 0.85 0MML Fundamental Value Fund EQUITY GLAXOSMITHKLINE PLC SPON ADR 1,570,981 41,737 0.81 0MML Fundamental Value Fund EQUITY NOVARTIS AG SPONSORED ADR 3,526,054 40,548 1.82 0MML Fundamental Value Fund EQUITY UNITEDHEALTH GROUP INC 2,724,558 8,739 1.40 0MML Fundamental Value Fund EQUITY UNITED RENTALS INC 1,368,953 7,845 0.71 0MML Fundamental Value Fund EQUITY VALERO ENERGY CORP 944,506 21,803 0.49 0MML Fundamental Value Fund EQUITY AMETEK INC 838,141 8,432 0.43 0MML Fundamental Value Fund EQUITY APPLIED MATERIALS INC 2,349,523 39,521 1.21 0MML Fundamental Value Fund EQUITY BEST BUY CO INC 3,496,954 31,422 1.80 0MML Fundamental Value Fund EQUITY CISCO SYSTEMS INC 4,732,827 120,153 2.44 0MML Fundamental Value Fund EQUITY MICROSOFT CORP 1,319,610 6,274 0.68 0MML Fundamental Value Fund EQUITY MICRON TECHNOLOGY INC 2,627,600 55,954 1.35 0MML Fundamental Value Fund EQUITY ORACLE CORP 2,381,791 39,896 1.23 0MML Fundamental Value Fund EQUITY PFIZER INC 4,615,539 125,764 2.38 0MML Fundamental Value Fund EQUITY KIMBERLY CLARK CORP 1,933,312 13,093 1.00 0MML Fundamental Value Fund EQUITY BANK OF AMERICA CORP 4,503,071 186,927 2.32 0MML Focused Equity Fund EQUITY CANADIAN NATL RAILWAY CO 8,156,724 76,589 2.59 0MML Focused Equity Fund CASH EQUIVALENT FIXED INC CLEARING CORP.REPO 4,175,546 4,175,546 1.32 0 10/1/2020MML Focused Equity Fund EQUITY LOCKHEED MARTIN CORP 9,240,114 24,108 2.93 0MML Focused Equity Fund EQUITY NORTHROP GRUMMAN CORP 10,159,409 32,202 3.22 0MML Focused Equity Fund EQUITY UNION PACIFIC CORP 12,099,827 61,461 3.84 0MML Focused Equity Fund EQUITY DIAGEO PLC 12,619,795 368,373 4.00 0MML Focused Equity Fund EQUITY PROCTER + GAMBLE CO/THE 6,470,957 46,557 2.05 0MML Focused Equity Fund EQUITY MICROSOFT CORP 11,094,277 52,747 3.52 0MML Focused Equity Fund EQUITY BAXTER INTERNATIONAL INC 7,569,774 94,128 2.40 0MML Focused Equity Fund EQUITY PNC FINANCIAL SERVICES GROUP 3,867,293 35,186 1.23 0MML Focused Equity Fund EQUITY MARSH + MCLENNAN COS 8,510,855 74,201 2.70 0MML Focused Equity Fund EQUITY JOHNSON + JOHNSON 15,801,974 106,139 5.01 0MML Focused Equity Fund EQUITY MCDONALD S CORP 17,530,008 79,867 5.56 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Focused Equity Fund EQUITY AMERICAN EXPRESS CO 14,111,591 140,764 4.48 0MML Focused Equity Fund EQUITY COCA COLA CO/THE 16,031,920 324,730 5.08 0MML Focused Equity Fund EQUITY NIKE INC CL B 17,631,967 140,449 5.59 0MML Focused Equity Fund EQUITY PEPSICO INC 13,460,555 97,118 4.27 0MML Focused Equity Fund EQUITY DEERE + CO 7,280,767 32,851 2.31 0MML Focused Equity Fund EQUITY PUBLIC STORAGE 6,116,114 27,461 1.94 0MML Focused Equity Fund EQUITY COLGATE PALMOLIVE CO 14,948,584 193,760 4.74 0MML Focused Equity Fund EQUITY ECOLAB INC 8,073,136 40,398 2.56 0MML Focused Equity Fund EQUITY TJX COMPANIES INC 13,582,885 244,077 4.31 0MML Focused Equity Fund EQUITY UNITEDHEALTH GROUP INC 15,923,341 51,074 5.05 0MML Focused Equity Fund EQUITY DANAHER CORP 6,605,678 30,677 2.09 0MML Focused Equity Fund EQUITY VISA INC CLASS A SHARES 5,600,360 28,006 1.78 0MML Focused Equity Fund EQUITY ACCENTURE PLC CL A 7,716,429 34,145 2.45 0MML Focused Equity Fund EQUITY AMERICAN TOWER CORP 3,806,522 15,747 1.21 0MML Focused Equity Fund EQUITY MEDTRONIC PLC 14,606,372 140,554 4.63 0MML Focused Equity Fund EQUITY CHUBB LTD 11,216,844 96,597 3.56 0MML Focused Equity Fund EQUITY LINDE PLC 11,295,458 47,434 3.58 0MML Focused Equity Fund CASH CANADIAN DOLLAR 28,338 37,734 0.01 0MML Fundamental Equity Fund EQUITY BERKSHIRE HATHAWAY INC CL B 4,760,274 22,355 2.53 0MML Fundamental Equity Fund EQUITY GENERAL MOTORS CO 874,858 29,566 0.47 0MML Fundamental Equity Fund EQUITY MOTOROLA SOLUTIONS INC 2,384,453 15,206 1.27 0MML Fundamental Equity Fund EQUITY O REILLY AUTOMOTIVE INC 1,277,653 2,771 0.68 0MML Fundamental Equity Fund EQUITY HCA HEALTHCARE INC 3,590,909 28,801 1.91 0MML Fundamental Equity Fund EQUITY PROLOGIS INC 5,191,992 51,600 2.76 0MML Fundamental Equity Fund EQUITY FACEBOOK INC CLASS A 6,619,261 25,274 3.52 0MML Fundamental Equity Fund EQUITY DUKE ENERGY CORP 2,260,051 25,520 1.20 0MML Fundamental Equity Fund EQUITY MONDELEZ INTERNATIONAL INC A 1,499,617 26,103 0.80 0MML Fundamental Equity Fund EQUITY WORKDAY INC CLASS A 945,066 4,393 0.50 0MML Fundamental Equity Fund EQUITY INTERCONTINENTAL EXCHANGE IN 3,706,552 37,047 1.97 0MML Fundamental Equity Fund CASH DANISH KRONE - (0) - 0MML Fundamental Equity Fund EQUITY PROGRESSIVE CORP 3,471,928 36,674 1.85 0MML Fundamental Equity Fund EQUITY AMAZON.COM INC 13,193,179 4,190 7.01 0MML Fundamental Equity Fund CASH POUND STERLING 14,346 11,118 0.01 0MML Fundamental Equity Fund EQUITY DR HORTON INC 1,660,381 21,954 0.88 0MML Fundamental Equity Fund EQUITY LOCKHEED MARTIN CORP 5,472,855 14,279 2.91 0MML Fundamental Equity Fund EQUITY THERMO FISHER SCIENTIFIC INC 3,812,084 8,634 2.03 0MML Fundamental Equity Fund EQUITY UNION PACIFIC CORP 3,069,597 15,592 1.63 0MML Fundamental Equity Fund EQUITY VALERO ENERGY CORP 795,658 18,367 0.42 0MML Fundamental Equity Fund EQUITY NEUROCRINE BIOSCIENCES INC 733,797 7,631 0.39 0MML Fundamental Equity Fund EQUITY QUIDEL CORP 443,148 2,020 0.24 0MML Fundamental Equity Fund EQUITY APPLIED MATERIALS INC 4,044,324 68,029 2.15 0MML Fundamental Equity Fund EQUITY CABOT OIL + GAS CORP 937,857 54,024 0.50 0MML Fundamental Equity Fund EQUITY CHURCH + DWIGHT CO INC 1,054,425 11,252 0.56 0MML Fundamental Equity Fund EQUITY HONEYWELL INTERNATIONAL INC 1,978,941 12,022 1.05 0MML Fundamental Equity Fund EQUITY PROCTER + GAMBLE CO/THE 7,022,192 50,523 3.73 0MML Fundamental Equity Fund EQUITY AMGEN INC 3,066,440 12,065 1.63 0MML Fundamental Equity Fund EQUITY CAPITAL ONE FINANCIAL CORP 2,563,606 35,675 1.36 0MML Fundamental Equity Fund EQUITY HOME DEPOT INC 4,292,841 15,458 2.28 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Fundamental Equity Fund EQUITY MICROSOFT CORP 16,715,135 79,471 8.89 0MML Fundamental Equity Fund EQUITY SYSCO CORP 1,115,045 17,921 0.59 0MML Fundamental Equity Fund EQUITY TEXAS INSTRUMENTS INC 3,374,413 23,632 1.79 0MML Fundamental Equity Fund EQUITY TARGET CORP 2,645,286 16,804 1.41 0MML Fundamental Equity Fund EQUITY UNITED PARCEL SERVICE CL B 2,493,285 14,963 1.33 0MML Fundamental Equity Fund CASH EURO CURRENCY (0) (0) - 0MML Fundamental Equity Fund EQUITY FISERV INC 1,324,605 12,854 0.70 0MML Fundamental Equity Fund EQUITY QUALCOMM INC 5,941,192 50,486 3.16 0MML Fundamental Equity Fund EQUITY VULCAN MATERIALS CO 382,223 2,820 0.20 0MML Fundamental Equity Fund EQUITY ADOBE INC 1,712,091 3,491 0.91 0MML Fundamental Equity Fund EQUITY ASTRAZENECA PLC SPONS ADR 4,309,088 78,633 2.29 0MML Fundamental Equity Fund EQUITY UNITEDHEALTH GROUP INC 7,861,904 25,217 4.18 0MML Fundamental Equity Fund EQUITY LABORATORY CRP OF AMER HLDGS 613,948 3,261 0.33 0MML Fundamental Equity Fund EQUITY AMDOCS LTD 1,089,642 18,980 0.58 0MML Fundamental Equity Fund EQUITY VERIZON COMMUNICATIONS INC 4,490,186 75,478 2.39 0MML Fundamental Equity Fund EQUITY CONSTELLATION BRANDS INC A 1,918,410 10,123 1.02 0MML Fundamental Equity Fund EQUITY JPMORGAN CHASE + CO 4,666,592 48,474 2.48 0MML Fundamental Equity Fund EQUITY MAGELLAN MIDSTREAM PARTNERS 1,722,380 50,362 0.92 0MML Fundamental Equity Fund EQUITY ZIMMER BIOMET HOLDINGS INC 1,150,791 8,453 0.61 0MML Fundamental Equity Fund EQUITY C.H. ROBINSON WORLDWIDE INC 1,231,492 12,051 0.65 0MML Fundamental Equity Fund EQUITY LIVE NATION ENTERTAINMENT IN 397,042 7,369 0.21 0MML Fundamental Equity Fund EQUITY MASTERCARD INC A 4,108,089 12,148 2.18 0MML Fundamental Equity Fund EQUITY ALPHABET INC CL A 1,899,418 1,296 1.01 0MML Fundamental Equity Fund EQUITY A2 MILK CO LTD 255,473 25,209 0.14 0MML Fundamental Equity Fund EQUITY WASTE CONNECTIONS INC 2,437,847 23,486 1.30 0MML Fundamental Equity Fund EQUITY VALVOLINE INC 789,132 41,446 0.42 0MML Fundamental Equity Fund EQUITY BOOKING HOLDINGS INC 2,807,226 1,641 1.49 0MML Fundamental Equity Fund EQUITY ALCON INC 874,012 15,347 0.46 0MML Fundamental Equity Fund EQUITY AVANTOR INC 714,957 31,790 0.38 0MML Fundamental Equity Fund EQUITY EQUITABLE HOLDINGS INC 2,737,477 150,081 1.46 0MML Fundamental Equity Fund EQUITY WARNER MUSIC GROUP CORP CL A 597,476 20,789 0.32 0MML Fundamental Equity Fund EQUITY ROCKET COS INC CLASS A 2,068,435 103,785 1.10 0MML Fundamental Equity Fund EQUITY SNOWFLAKE INC CLASS A 284,885 1,135 0.15 0MML Fundamental Equity Fund CASH EQUIVALENT FIXED INC CLEARING CORP.REPO 2,427,094 2,427,094 1.29 0 10/1/2020MML Fundamental Equity Fund EQUITY RECKITT BENCKISER GROUP PLC 704,583 7,227 0.37 0MML Fundamental Equity Fund EQUITY TENCENT HOLDINGS LTD UNS ADR 2,348,267 34,712 1.25 0MML Fundamental Equity Fund EQUITY ACCENTURE PLC CL A 2,797,756 12,380 1.49 0MML Fundamental Equity Fund EQUITY MERCK + CO. INC. 4,349,898 52,440 2.31 0MML Small/Mid Cap Value Fund EQUITY WEBSTER FINANCIAL CORP 1,589,063 60,169 0.95 0MML Small/Mid Cap Value Fund EQUITY GAP INC/THE 1,868,361 109,710 1.11 0MML Small/Mid Cap Value Fund EQUITY ZIONS BANCORP NA 1,312,796 44,928 0.78 0MML Small/Mid Cap Value Fund EQUITY AMDOCS LTD 1,459,018 25,414 0.87 0MML Small/Mid Cap Value Fund EQUITY SEALED AIR CORP 2,047,616 52,760 1.22 0MML Small/Mid Cap Value Fund EQUITY NCR CORPORATION 1,797,436 81,185 1.07 0MML Small/Mid Cap Value Fund EQUITY NETSCOUT SYSTEMS INC 981,389 44,956 0.58 0MML Small/Mid Cap Value Fund EQUITY QUANTA SERVICES INC 2,405,024 45,498 1.43 0MML Small/Mid Cap Value Fund EQUITY KB HOME 2,039,277 53,120 1.21 0MML Small/Mid Cap Value Fund EQUITY FOOT LOCKER INC 2,080,659 62,993 1.24 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Small/Mid Cap Value Fund EQUITY PNM RESOURCES INC 1,418,487 34,321 0.84 0MML Small/Mid Cap Value Fund EQUITY CIMAREX ENERGY CO 359,451 14,774 0.21 0MML Small/Mid Cap Value Fund EQUITY MOLINA HEALTHCARE INC 1,510,995 8,255 0.90 0MML Small/Mid Cap Value Fund EQUITY TEXAS CAPITAL BANCSHARES INC 1,406,702 45,188 0.84 0MML Small/Mid Cap Value Fund EQUITY BELDEN INC 1,545,544 49,664 0.92 0MML Small/Mid Cap Value Fund EQUITY ENERSYS 2,101,460 31,309 1.25 0MML Small/Mid Cap Value Fund EQUITY WESTLAKE CHEMICAL CORP 1,530,114 24,203 0.91 0MML Small/Mid Cap Value Fund EQUITY AMERICAN CAMPUS COMMUNITIES 1,778,196 50,922 1.06 0MML Small/Mid Cap Value Fund EQUITY HANOVER INSURANCE GROUP INC/ 1,763,711 18,928 1.05 0MML Small/Mid Cap Value Fund EQUITY CROCS INC 1,446,325 33,848 0.86 0MML Small/Mid Cap Value Fund EQUITY COMMVAULT SYSTEMS INC 2,061,869 50,536 1.23 0MML Small/Mid Cap Value Fund EQUITY AECOM 2,766,879 66,130 1.65 0MML Small/Mid Cap Value Fund EQUITY GENPACT LTD 1,387,399 35,620 0.83 0MML Small/Mid Cap Value Fund EQUITY SKECHERS USA INC CL A 1,361,925 45,067 0.81 0MML Small/Mid Cap Value Fund EQUITY WILLIAMS SONOMA INC 2,535,124 28,031 1.51 0MML Small/Mid Cap Value Fund EQUITY GRAPHIC PACKAGING HOLDING CO 2,184,640 155,049 1.30 0MML Small/Mid Cap Value Fund EQUITY HILLENBRAND INC 1,467,885 51,759 0.87 0MML Small/Mid Cap Value Fund EQUITY REINSURANCE GROUP OF AMERICA 1,805,945 18,972 1.08 0MML Small/Mid Cap Value Fund EQUITY LEAR CORP 1,884,384 17,280 1.12 0MML Small/Mid Cap Value Fund EQUITY MAXLINEAR INC 997,438 42,919 0.59 0MML Small/Mid Cap Value Fund EQUITY FIRST AMERICAN FINANCIAL 1,331,857 26,161 0.79 0MML Small/Mid Cap Value Fund EQUITY BANKUNITED INC 1,858,603 84,829 1.11 0MML Small/Mid Cap Value Fund EQUITY STAG INDUSTRIAL INC 2,168,815 71,132 1.29 0MML Small/Mid Cap Value Fund EQUITY RLJ LODGING TRUST 1,113,988 128,636 0.66 0MML Small/Mid Cap Value Fund EQUITY HOLLYFRONTIER CORP 1,799,030 91,275 1.07 0MML Small/Mid Cap Value Fund EQUITY RALPH LAUREN CORP 1,753,626 25,800 1.04 0MML Small/Mid Cap Value Fund EQUITY MRC GLOBAL INC 973,978 227,565 0.58 0MML Small/Mid Cap Value Fund EQUITY ICON PLC 1,651,591 8,643 0.98 0MML Small/Mid Cap Value Fund EQUITY TAYLOR MORRISON HOME CORP 1,506,974 61,284 0.90 0MML Small/Mid Cap Value Fund EQUITY PHYSICIANS REALTY TRUST 2,291,459 127,943 1.36 0MML Small/Mid Cap Value Fund EQUITY MASONITE INTERNATIONAL CORP 2,121,602 21,561 1.26 0MML Small/Mid Cap Value Fund EQUITY CRITEO SA SPON ADR 992,522 81,421 0.59 0MML Small/Mid Cap Value Fund EQUITY ESSENT GROUP LTD 1,811,380 48,943 1.08 0MML Small/Mid Cap Value Fund EQUITY STERLING BANCORP/DE 1,520,792 144,562 0.91 0MML Small/Mid Cap Value Fund EQUITY HOUGHTON MIFFLIN HARCOURT CO 244,172 141,140 0.15 0MML Small/Mid Cap Value Fund EQUITY VOYA FINANCIAL INC 1,736,408 36,228 1.03 0MML Small/Mid Cap Value Fund EQUITY MOELIS + CO CLASS A 2,384,636 67,861 1.42 0MML Small/Mid Cap Value Fund EQUITY SYNOVUS FINANCIAL CORP 2,226,322 105,164 1.33 0MML Small/Mid Cap Value Fund EQUITY TRINSEO SA 1,304,127 50,863 0.78 0MML Small/Mid Cap Value Fund EQUITY ORION ENGINEERED CARBONS SA 1,554,117 124,230 0.93 0MML Small/Mid Cap Value Fund EQUITY ONEMAIN HOLDINGS INC 1,379,813 44,154 0.82 0MML Small/Mid Cap Value Fund EQUITY DANA INC 2,383,501 193,466 1.42 0MML Small/Mid Cap Value Fund EQUITY COMERICA INC 1,830,263 47,850 1.09 0MML Small/Mid Cap Value Fund EQUITY ASSOCIATED BANC CORP 1,213,527 96,159 0.72 0MML Small/Mid Cap Value Fund EQUITY ROBERT HALF INTL INC 2,005,261 37,878 1.19 0MML Small/Mid Cap Value Fund EQUITY PAPA JOHN S INTL INC 1,839,040 22,351 1.09 0MML Small/Mid Cap Value Fund EQUITY ALLIANT ENERGY CORP 2,170,901 42,031 1.29 0MML Small/Mid Cap Value Fund EQUITY AMERICAN FINANCIAL GROUP INC 1,618,773 24,168 0.96 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Small/Mid Cap Value Fund EQUITY EVEREST RE GROUP LTD 2,293,637 11,611 1.37 0MML Small/Mid Cap Value Fund EQUITY ALASKA AIR GROUP INC 1,320,951 36,062 0.79 0MML Small/Mid Cap Value Fund EQUITY ARROW ELECTRONICS INC 1,630,622 20,730 0.97 0MML Small/Mid Cap Value Fund EQUITY BRUNSWICK CORP 2,149,096 36,481 1.28 0MML Small/Mid Cap Value Fund EQUITY CARPENTER TECHNOLOGY 825,463 45,455 0.49 0MML Small/Mid Cap Value Fund EQUITY COOPER TIRE + RUBBER 1,380,662 43,554 0.82 0MML Small/Mid Cap Value Fund EQUITY GATX CORP 1,672,545 26,236 1.00 0MML Small/Mid Cap Value Fund EQUITY UNITED RENTALS INC 1,783,565 10,221 1.06 0MML Small/Mid Cap Value Fund EQUITY VISHAY INTERTECHNOLOGY INC 1,676,718 107,689 1.00 0MML Small/Mid Cap Value Fund EQUITY AAR CORP 1,139,618 60,618 0.68 0MML Small/Mid Cap Value Fund EQUITY FIRST CITIZENS BCSHS CL A 1,516,436 4,757 0.90 0MML Small/Mid Cap Value Fund EQUITY KENNAMETAL INC 2,091,147 72,258 1.25 0MML Small/Mid Cap Value Fund EQUITY KULICKE + SOFFA INDUSTRIES 1,611,501 71,942 0.96 0MML Small/Mid Cap Value Fund EQUITY MIDDLEBY CORP 1,615,677 18,010 0.96 0MML Small/Mid Cap Value Fund EQUITY OSHKOSH CORP 2,440,274 33,201 1.45 0MML Small/Mid Cap Value Fund EQUITY RELIANCE STEEL + ALUMINUM 2,215,799 21,715 1.32 0MML Small/Mid Cap Value Fund EQUITY SELECTIVE INSURANCE GROUP 1,105,851 21,477 0.66 0MML Small/Mid Cap Value Fund EQUITY SKYWEST INC 1,687,000 56,497 1.00 0MML Small/Mid Cap Value Fund EQUITY SOUTHWEST GAS HOLDINGS INC 1,832,424 29,040 1.09 0MML Small/Mid Cap Value Fund EQUITY STIFEL FINANCIAL CORP 1,727,130 34,160 1.03 0MML Small/Mid Cap Value Fund EQUITY BLACK HILLS CORP 961,804 17,981 0.57 0MML Small/Mid Cap Value Fund EQUITY DRIL QUIP INC 1,368,040 55,252 0.81 0MML Small/Mid Cap Value Fund EQUITY HAIN CELESTIAL GROUP INC 2,431,356 70,885 1.45 0MML Small/Mid Cap Value Fund EQUITY REGAL BELOIT CORP 3,106,346 33,092 1.85 0MML Small/Mid Cap Value Fund EQUITY UMPQUA HOLDINGS CORP 1,531,808 144,238 0.91 0MML Small/Mid Cap Value Fund EQUITY CALLAWAY GOLF COMPANY 2,043,693 106,776 1.22 0MML Small/Mid Cap Value Fund EQUITY CAMDEN PROPERTY TRUST 2,267,922 25,488 1.35 0MML Small/Mid Cap Value Fund EQUITY CUBESMART 2,352,943 72,824 1.40 0MML Small/Mid Cap Value Fund EQUITY KNIGHT SWIFT TRANSPORTATION 2,213,388 54,383 1.32 0MML Small/Mid Cap Value Fund EQUITY COUSINS PROPERTIES INC 1,654,217 57,860 0.98 0MML Small/Mid Cap Value Fund EQUITY CHANGE HEALTHCARE INC 1,783,279 122,900 1.06 0MML Small/Mid Cap Value Fund EQUITY PRIMO WATER CORP 1,831,672 128,991 1.09 0MML Small/Mid Cap Value Fund CASH EQUIVALENT FIXED INC CLEARING CORP.REPO 500,781 500,781 0.30 0 10/1/2020MML Small/Mid Cap Value Fund EQUITY NOMAD FOODS LTD 2,144,830 84,177 1.28 0MML Small/Mid Cap Value Fund EQUITY PULTEGROUP INC 2,860,259 61,790 1.70 0MML Small/Mid Cap Value Fund EQUITY TTM TECHNOLOGIES 324,386 28,430 0.19 0MML Small/Mid Cap Value Fund EQUITY XPO LOGISTICS INC 2,277,269 26,899 1.36 0MML Small/Mid Cap Value Fund EQUITY GCP APPLIED TECHNOLOGIES 824,592 39,360 0.49 0MML Small/Mid Cap Value Fund EQUITY MGM GROWTH PROPERTIES LLC A 2,313,079 82,669 1.38 0MML Small/Mid Cap Value Fund EQUITY US FOODS HOLDING CORP 1,423,013 64,042 0.85 0MML Small/Mid Cap Value Fund EQUITY HILTON GRAND VACATIONS INC 341,156 16,261 0.20 0MML Conservative Allocation Fund EQUITY INVESCO OPPENHEIMER VI GLOBAL 10,780,923 2,227,463 2.38 0MML Conservative Allocation Fund EQUITY INVESCO OPPENHEIMER VI GLOBAL 3,704,789 80,156 0.82 0MML Conservative Allocation Fund EQUITY MML FUNDAMENTAL VALUE FUND 13,630,178 1,393,679 3.01 0MML Conservative Allocation Fund EQUITY MML STRG EMERGING MARKETS FUND 1,879,801 155,099 0.41 0MML Conservative Allocation Fund EQUITY MML FUNDAMENTAL GROWTH FUND 13,095,687 1,345,908 2.89 0MML Conservative Allocation Fund EQUITY MML FOCUSED EQUITY FUND 21,412,339 3,229,614 4.72 0MML Conservative Allocation Fund EQUITY MML SMALL/MID CAP VALUE 2,860,830 337,760 0.63 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Conservative Allocation Fund EQUITY MML INTERNATIONAL EQUITY FUND 8,373,471 1,107,602 1.85 0MML Conservative Allocation Fund EQUITY MML DYNAMIC BOND FUND 58,083,391 5,650,135 12.82 0MML Conservative Allocation Fund EQUITY MML SER INVT FD 1,077,263 41,690 0.24 0MML Conservative Allocation Fund EQUITY INVESCO OPPENHEIMER VI MAIN ST 871,075 28,635 0.19 0MML Conservative Allocation Fund EQUITY INVESCO OPPENHEIMER VI DISCOVE 1,760,838 19,646 0.39 0MML Conservative Allocation Fund EQUITY INVESCO OPPENHEIMER VI INTERNA 647,666 250,064 0.14 0MML Conservative Allocation Fund EQUITY MML SMALL COMPANY VALUE FUND 3,716,203 313,339 0.82 0MML Conservative Allocation Fund EQUITY MML FOREIGN FD 8,574,696 1,006,420 1.89 0MML Conservative Allocation Fund EQUITY MML GLOBAL FD 26,995,787 2,221,875 5.96 0MML Conservative Allocation Fund EQUITY MML LARGE CAP GROWTH FD 5,656,855 439,538 1.25 0MML Conservative Allocation Fund EQUITY MML SHORT DURATION BOND FUND 25,223,695 2,608,448 5.57 0MML Conservative Allocation Fund EQUITY MML HIGH YIELD FUND 11,700,700 1,251,412 2.58 0MML Conservative Allocation Fund EQUITY MML TOTAL RETURN BOND FUND 52,474,870 4,710,491 11.58 0MML Conservative Allocation Fund EQUITY MML SMALL CAP GROWTH EQUITY FD 1,826,340 143,363 0.40 0MML Conservative Allocation Fund EQUITY MML MID CAP GROWTH FD 15,399,346 995,433 3.40 0MML Conservative Allocation Fund EQUITY MML MID CAP VALUE FD 12,964,080 1,430,914 2.86 0MML Conservative Allocation Fund EQUITY MML BLUE CHIP GROWTH FD 15,260,202 804,439 3.37 0MML Conservative Allocation Fund EQUITY MML EQUITY INCOME FD 14,575,346 1,714,747 3.22 0MML Conservative Allocation Fund EQUITY MML INFLATION PROTECTED BD FD 17,758,658 1,587,011 3.92 0MML Conservative Allocation Fund EQUITY MML MANAGED BOND FUND 89,727,910 6,770,598 19.80 0MML Conservative Allocation Fund EQUITY MML INCOME AND GROWTH FD 13,188,607 1,590,906 2.91 0MML Balanced Allocation Fund EQUITY MML FUNDAMENTAL GROWTH FUND 21,584,056 2,218,300 4.30 0MML Balanced Allocation Fund EQUITY MML FOCUSED EQUITY FUND 25,086,751 3,783,824 5.00 0MML Balanced Allocation Fund EQUITY MML SMALL/MID CAP VALUE 4,114,316 485,752 0.82 0MML Balanced Allocation Fund EQUITY MML INTERNATIONAL EQUITY FUND 13,235,280 1,750,698 2.64 0MML Balanced Allocation Fund EQUITY MML DYNAMIC BOND FUND 56,790,393 5,524,357 11.32 0MML Balanced Allocation Fund EQUITY MML SER INVT FD 1,297,794 50,224 0.26 0MML Balanced Allocation Fund EQUITY INVESCO OPPENHEIMER VI MAIN ST 702,816 23,104 0.14 0MML Balanced Allocation Fund EQUITY INVESCO OPPENHEIMER VI DISCOVE 2,718,412 30,329 0.54 0MML Balanced Allocation Fund EQUITY INVESCO OPPENHEIMER VI INTERNA 2,283,607 881,701 0.46 0MML Balanced Allocation Fund EQUITY MML SMALL CAP GROWTH EQUITY FD 2,353,551 184,747 0.47 0MML Balanced Allocation Fund EQUITY MML MID CAP GROWTH FD 21,712,895 1,403,548 4.33 0MML Balanced Allocation Fund EQUITY MML MID CAP VALUE FD 17,703,731 1,954,054 3.53 0MML Balanced Allocation Fund EQUITY MML BLUE CHIP GROWTH FD 21,040,673 1,109,155 4.20 0MML Balanced Allocation Fund EQUITY MML EQUITY INCOME FD 18,430,214 2,168,260 3.68 0MML Balanced Allocation Fund EQUITY MML INFLATION PROTECTED BD FD 15,940,746 1,424,553 3.18 0MML Balanced Allocation Fund EQUITY MML MANAGED BOND FUND 87,142,574 6,575,517 17.38 0MML Balanced Allocation Fund EQUITY MML INCOME AND GROWTH FD 17,464,567 2,106,703 3.48 0MML Balanced Allocation Fund EQUITY MML SMALL COMPANY VALUE FUND 4,523,327 381,394 0.90 0MML Balanced Allocation Fund EQUITY MML FOREIGN FD 12,436,954 1,459,736 2.48 0MML Balanced Allocation Fund EQUITY MML GLOBAL FD 26,764,327 2,202,825 5.34 0MML Balanced Allocation Fund EQUITY MML LARGE CAP GROWTH FD 9,923,808 771,081 1.98 0MML Balanced Allocation Fund EQUITY MML SHORT DURATION BOND FUND 25,120,309 2,597,757 5.01 0MML Balanced Allocation Fund EQUITY MML HIGH YIELD FUND 11,409,175 1,220,233 2.28 0MML Balanced Allocation Fund EQUITY MML TOTAL RETURN BOND FUND 45,581,215 4,091,671 9.09 0MML Balanced Allocation Fund EQUITY MML FUNDAMENTAL VALUE FUND 15,348,836 1,569,411 3.06 0MML Balanced Allocation Fund EQUITY MML STRG EMERGING MARKETS FUND 4,532,802 373,994 0.90 0MML Balanced Allocation Fund EQUITY INVESCO OPPENHEIMER VI GLOBAL 10,240,347 2,115,774 2.04 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Balanced Allocation Fund EQUITY INVESCO OPPENHEIMER VI GLOBAL 5,985,088 129,491 1.19 0MML Moderate Allocation Fund EQUITY MML SMALL CAP GROWTH EQUITY FD 13,278,441 1,042,321 0.69 0MML Moderate Allocation Fund EQUITY MML MID CAP VALUE FD 73,027,909 8,060,476 3.82 0MML Moderate Allocation Fund EQUITY MML BLUE CHIP GROWTH FD 92,225,818 4,861,667 4.82 0MML Moderate Allocation Fund EQUITY MML EQUITY INCOME FD 81,758,321 9,618,626 4.27 0MML Moderate Allocation Fund EQUITY MML INFLATION PROTECTED BD FD 50,375,192 4,501,805 2.63 0MML Moderate Allocation Fund EQUITY MML MANAGED BOND FUND 251,093,348 18,946,749 13.12 0MML Moderate Allocation Fund EQUITY MML INCOME AND GROWTH FD 82,648,623 9,969,677 4.32 0MML Moderate Allocation Fund EQUITY MML SMALL COMPANY VALUE FUND 24,516,611 2,067,168 1.28 0MML Moderate Allocation Fund EQUITY MML FOREIGN FD 59,778,944 7,016,308 3.12 0MML Moderate Allocation Fund EQUITY MML GLOBAL FD 163,802,802 13,481,712 8.56 0MML Moderate Allocation Fund EQUITY MML LARGE CAP GROWTH FD 33,858,909 2,630,840 1.77 0MML Moderate Allocation Fund EQUITY MML SHORT DURATION BOND FUND 67,863,822 7,017,975 3.55 0MML Moderate Allocation Fund EQUITY MML HIGH YIELD FUND 30,974,473 3,312,778 1.62 0MML Moderate Allocation Fund EQUITY MML TOTAL RETURN BOND FUND 143,160,456 12,851,028 7.48 0MML Moderate Allocation Fund EQUITY MML FUNDAMENTAL VALUE FUND 77,361,174 7,910,140 4.04 0MML Moderate Allocation Fund EQUITY MML STRG EMERGING MARKETS FUND 51,051,123 4,212,139 2.67 0MML Moderate Allocation Fund EQUITY MML FUNDAMENTAL GROWTH FUND 66,881,959 6,873,788 3.50 0MML Moderate Allocation Fund EQUITY MML FOCUSED EQUITY FUND 131,458,440 19,827,819 6.87 0MML Moderate Allocation Fund EQUITY MML SMALL/MID CAP VALUE 22,061,199 2,604,628 1.15 0MML Moderate Allocation Fund EQUITY MML INTERNATIONAL EQUITY FUND 60,520,359 8,005,339 3.16 0MML Moderate Allocation Fund EQUITY MML DYNAMIC BOND FUND 166,811,126 16,226,763 8.72 0MML Moderate Allocation Fund EQUITY MML SER INVT FD 5,858,356 226,717 0.31 0MML Moderate Allocation Fund EQUITY INVESCO OPPENHEIMER VI MAIN ST 1,130,770 37,172 0.06 0MML Moderate Allocation Fund EQUITY INVESCO OPPENHEIMER VI DISCOVE 10,564,281 117,865 0.55 0MML Moderate Allocation Fund EQUITY INVESCO OPPENHEIMER VI INTERNA 1,429,622 551,977 0.07 0MML Moderate Allocation Fund EQUITY INVESCO OPPENHEIMER VI GLOBAL 23,974,135 4,953,334 1.25 0MML Moderate Allocation Fund EQUITY INVESCO OPPENHEIMER VI GLOBAL 28,798,216 623,068 1.51 0MML Moderate Allocation Fund EQUITY MML MID CAP GROWTH FD 97,231,864 6,285,188 5.08 0MML Growth Allocation Fund EQUITY MML SMALL CAP GROWTH EQUITY FD 14,049,674 1,102,860 1.00 0MML Growth Allocation Fund EQUITY MML MID CAP GROWTH FD 89,037,009 5,755,463 6.32 0MML Growth Allocation Fund EQUITY MML MID CAP VALUE FD 66,665,444 7,358,217 4.73 0MML Growth Allocation Fund EQUITY MML BLUE CHIP GROWTH FD 90,263,782 4,758,238 6.41 0MML Growth Allocation Fund EQUITY MML EQUITY INCOME FD 70,059,917 8,242,343 4.97 0MML Growth Allocation Fund EQUITY MML FUNDAMENTAL GROWTH FUND 59,148,466 6,078,979 4.20 0MML Growth Allocation Fund EQUITY MML FOCUSED EQUITY FUND 104,768,052 15,802,119 7.44 0MML Growth Allocation Fund EQUITY MML SMALL/MID CAP VALUE 18,301,370 2,160,728 1.30 0MML Growth Allocation Fund EQUITY MML INTERNATIONAL EQUITY FUND 56,571,750 7,483,036 4.02 0MML Growth Allocation Fund EQUITY MML DYNAMIC BOND FUND 62,345,862 6,064,773 4.43 0MML Growth Allocation Fund EQUITY MML SER INVT FD 4,969,378 192,313 0.35 0MML Growth Allocation Fund EQUITY INVESCO OPPENHEIMER VI MAIN ST 1,487,799 48,909 0.11 0MML Growth Allocation Fund EQUITY INVESCO OPPENHEIMER VI DISCOVE 10,298,820 114,904 0.73 0MML Growth Allocation Fund EQUITY INVESCO OPPENHEIMER VI INTERNA 8,370,906 3,232,010 0.59 0MML Growth Allocation Fund EQUITY INVESCO OPPENHEIMER VI GLOBAL 15,741,675 3,252,412 1.12 0MML Growth Allocation Fund EQUITY INVESCO OPPENHEIMER VI GLOBAL 26,974,028 583,601 1.91 0MML Growth Allocation Fund EQUITY MML GLOBAL FD 140,478,204 11,561,992 9.97 0MML Growth Allocation Fund EQUITY MML LARGE CAP GROWTH FD 33,762,879 2,623,378 2.40 0MML Growth Allocation Fund EQUITY MML SHORT DURATION BOND FUND 38,904,187 4,023,184 2.76 0

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Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Growth Allocation Fund EQUITY MML HIGH YIELD FUND 19,010,071 2,033,163 1.35 0MML Growth Allocation Fund EQUITY MML TOTAL RETURN BOND FUND 57,265,388 5,140,520 4.07 0MML Growth Allocation Fund EQUITY MML FUNDAMENTAL VALUE FUND 64,980,878 6,644,262 4.61 0MML Growth Allocation Fund EQUITY MML STRG EMERGING MARKETS FUND 51,663,646 4,262,677 3.67 0MML Growth Allocation Fund EQUITY MML INFLATION PROTECTED BD FD 51,930,147 4,640,764 3.69 0MML Growth Allocation Fund EQUITY MML MANAGED BOND FUND 106,861,741 8,063,466 7.59 0MML Growth Allocation Fund EQUITY MML INCOME AND GROWTH FD 68,217,064 8,228,838 4.84 0MML Growth Allocation Fund EQUITY MML SMALL COMPANY VALUE FUND 23,690,232 1,997,490 1.68 0MML Growth Allocation Fund EQUITY MML FOREIGN FD 52,903,057 6,209,279 3.76 0MML Aggressive Allocation Fund EQUITY MML SMALL CAP GROWTH EQUITY FD 1,904,574 149,504 1.26 0MML Aggressive Allocation Fund EQUITY MML SMALL/MID CAP VALUE 2,056,068 242,747 1.37 0MML Aggressive Allocation Fund EQUITY MML INTERNATIONAL EQUITY FUND 7,282,310 963,269 4.84 0MML Aggressive Allocation Fund EQUITY MML DYNAMIC BOND FUND 1,911,202 185,915 1.27 0MML Aggressive Allocation Fund EQUITY MML SER INVT FD 665,880 25,769 0.44 0MML Aggressive Allocation Fund EQUITY INVESCO OPPENHEIMER VI MAIN ST 282,856 9,298 0.19 0MML Aggressive Allocation Fund EQUITY INVESCO OPPENHEIMER VI DISCOVE 1,640,405 18,302 1.09 0MML Aggressive Allocation Fund EQUITY INVESCO OPPENHEIMER VI INTERNA 1,005,636 388,276 0.67 0MML Aggressive Allocation Fund EQUITY INVESCO OPPENHEIMER VI GLOBAL 1,244,567 257,142 0.83 0MML Aggressive Allocation Fund EQUITY INVESCO OPPENHEIMER VI GLOBAL 4,208,077 91,045 2.79 0MML Aggressive Allocation Fund EQUITY MML MID CAP GROWTH FD 11,163,481 721,621 7.41 0MML Aggressive Allocation Fund EQUITY MML MID CAP VALUE FD 7,481,619 825,786 4.97 0MML Aggressive Allocation Fund EQUITY MML BLUE CHIP GROWTH FD 10,668,364 562,381 7.09 0MML Aggressive Allocation Fund EQUITY MML EQUITY INCOME FD 8,286,179 974,845 5.50 0MML Aggressive Allocation Fund EQUITY MML INFLATION PROTECTED BD FD 3,201,747 286,126 2.13 0MML Aggressive Allocation Fund EQUITY MML MANAGED BOND FUND 4,054,205 305,918 2.69 0MML Aggressive Allocation Fund EQUITY MML INCOME AND GROWTH FD 8,661,201 1,044,777 5.75 0MML Aggressive Allocation Fund EQUITY MML SMALL COMPANY VALUE FUND 3,143,890 265,083 2.09 0MML Aggressive Allocation Fund EQUITY MML FOREIGN FD 6,800,582 798,190 4.52 0MML Aggressive Allocation Fund EQUITY MML GLOBAL FD 17,607,071 1,449,142 11.69 0MML Aggressive Allocation Fund EQUITY MML LARGE CAP GROWTH FD 3,743,042 290,835 2.49 0MML Aggressive Allocation Fund EQUITY MML SHORT DURATION BOND FUND 2,745,120 283,880 1.82 0MML Aggressive Allocation Fund EQUITY MML HIGH YIELD FUND 1,643,169 175,740 1.09 0MML Aggressive Allocation Fund EQUITY MML TOTAL RETURN BOND FUND 1,656,382 148,688 1.10 0MML Aggressive Allocation Fund EQUITY MML FUNDAMENTAL VALUE FUND 8,096,971 827,911 5.38 0MML Aggressive Allocation Fund EQUITY MML STRG EMERGING MARKETS FUND 8,319,611 686,437 5.53 0MML Aggressive Allocation Fund EQUITY MML FOCUSED EQUITY FUND 13,416,196 2,023,559 8.91 0MML Aggressive Allocation Fund EQUITY MML FUNDAMENTAL GROWTH FUND 7,675,942 788,894 5.10 0MML Strategic Emerging Markets Fund EQUITY YUM CHINA HOLDINGS INC 5,480,696 103,507 4.10 0MML Strategic Emerging Markets Fund EQUITY SAMSUNG BIOLOGICS CO LTD 1,863,516 3,161 1.40 0MML Strategic Emerging Markets Fund EQUITY ZTO EXPRESS CAYMAN INC ADR 3,422,100 114,375 2.56 0MML Strategic Emerging Markets Fund EQUITY WUXI BIOLOGICS CAYMAN INC 564,431 23,000 0.42 0MML Strategic Emerging Markets Fund EQUITY POLYUS PJSC 144A GDR 13,597 129 0.01 0MML Strategic Emerging Markets Fund EQUITY POLYUS PJSC 144A GDR 457,647 4,342 0.34 0MML Strategic Emerging Markets Fund EQUITY PAGSEGURO DIGITAL LTD CL A 1,238,585 32,845 0.93 0MML Strategic Emerging Markets Fund EQUITY B3 SA BRASIL BOLSA BALCAO 1,177,927 120,253 0.88 0MML Strategic Emerging Markets Fund EQUITY HUAZHU GROUP LTD ADR 4,678,698 108,203 3.50 0MML Strategic Emerging Markets Fund EQUITY MEITUAN DIANPING CLASS B 1,069,275 34,000 0.80 0MML Strategic Emerging Markets Fund EQUITY INNOVENT BIOLOGICS INC 703,757 94,500 0.53 0

Page 159: Fund Name Asset Class Security Name Base Market …...Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity Date MML Income

Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Strategic Emerging Markets Fund EQUITY HANSOH PHARMACEUTICAL GROUP 548,497 112,000 0.41 0MML Strategic Emerging Markets Fund EQUITY GRAB HOLDINGS INC PREF H SHARE 2,160,355 350,542 1.62 0MML Strategic Emerging Markets Fund EQUITY BUDWEISER BREWING CO APAC LT 1,314,833 450,100 0.98 0MML Strategic Emerging Markets Fund EQUITY HDFC BANK LIMITED 1,400,098 95,071 1.05 0MML Strategic Emerging Markets Fund EQUITY ONECONNECT FINANCIAL TECHNO 1,345,734 63,180 1.01 0MML Strategic Emerging Markets Fund EQUITY ZTO EXPRESS CAYMAN INC 215,144 7,437 0.16 0MML Strategic Emerging Markets Fund CASH EQUIVALENT FIXED INC CLEARING CORP.REPO 2,248,141 2,248,141 1.68 0 10/1/2020MML Strategic Emerging Markets Fund EQUITY MONCLER SPA 905,507 22,108 0.68 0MML Strategic Emerging Markets Fund EQUITY PERNOD RICARD SA 808,164 5,064 0.61 0MML Strategic Emerging Markets Fund EQUITY JARDINE STRATEGIC HLDGS LTD 934,885 47,189 0.70 0MML Strategic Emerging Markets Fund CASH PHILIPPINE PESO 10 473 0.00 0MML Strategic Emerging Markets Fund EQUITY FOMENTO ECONOMICO MEX SP ADR 608,313 10,826 0.46 0MML Strategic Emerging Markets Fund CASH SOUTH AFRICAN RAND 144 2,413 0.00 0MML Strategic Emerging Markets Fund CASH YUAN RENMINBI 0 1 - 0MML Strategic Emerging Markets Fund CASH INDONESIAN RUPIAH - 0 - 0MML Strategic Emerging Markets Fund CASH INDIAN RUPEE 15,571 1,148,810 0.01 0MML Strategic Emerging Markets Fund CASH SOUTH KOREAN WON 1 616 - 0MML Strategic Emerging Markets Fund CASH THAILAND BAHT 22,864 724,499 0.02 0MML Strategic Emerging Markets Fund CASH NEW TAIWAN DOLLAR 0 3 - 0MML Strategic Emerging Markets Fund CASH POUND STERLING 152 118 0.00 0MML Strategic Emerging Markets Fund CASH HONG KONG DOLLAR 9,181 71,152 0.01 0MML Strategic Emerging Markets Fund CASH MEXICAN PESO (NEW) 6 136 0.00 0MML Strategic Emerging Markets Fund CASH SWISS FRANC 118 108 0.00 0MML Strategic Emerging Markets Fund EQUITY KERING 7,113,571 10,707 5.33 0MML Strategic Emerging Markets Fund EQUITY FOMENTO ECONOMICO MEXICA UBD 2,569,608 457,471 1.92 0MML Strategic Emerging Markets Fund EQUITY LOJAS AMERICANAS SA PREF 2,215,021 438,159 1.66 0MML Strategic Emerging Markets Fund EQUITY FIRSTRAND LTD 828,201 337,042 0.62 0MML Strategic Emerging Markets Fund EQUITY FALABELLA SA 955,980 326,307 0.72 0MML Strategic Emerging Markets Fund EQUITY AYALA LAND INC 999,413 1,631,200 0.75 0MML Strategic Emerging Markets Fund EQUITY HOUSING DEVELOPMENT FINANCE 5,174,668 218,919 3.87 0MML Strategic Emerging Markets Fund EQUITY ZEE ENTERTAINMENT ENTERPRISE 905,550 315,798 0.68 0MML Strategic Emerging Markets Fund EQUITY INFOSYS LTD 589,057 42,733 0.44 0MML Strategic Emerging Markets Fund EQUITY COMMERCIAL INTERNATIONAL BAN 1,168,105 276,906 0.87 0MML Strategic Emerging Markets Fund EQUITY INDOCEMENT TUNGGAL PRAKARSA 236,670 337,997 0.18 0MML Strategic Emerging Markets Fund EQUITY AMOREPACIFIC GROUP 218,394 5,263 0.16 0MML Strategic Emerging Markets Fund EQUITY SEMEN INDONESIA PERSERO TBK 243,883 394,300 0.18 0MML Strategic Emerging Markets Fund EQUITY SM PRIME HOLDINGS INC 520,097 855,212 0.39 0MML Strategic Emerging Markets Fund EQUITY TAIWAN SEMICONDUCTOR MANUFAC 11,233,895 748,000 8.41 0MML Strategic Emerging Markets Fund CASH EURO CURRENCY 0 0 - 0MML Strategic Emerging Markets Fund EQUITY CREDICORP LTD 1,473,125 11,881 1.10 0MML Strategic Emerging Markets Fund EQUITY LVMH MOET HENNESSY LOUIS VUI 50,957 109 0.04 0MML Strategic Emerging Markets Fund EQUITY GRUPO AEROPORT DEL SURESTE B 488,493 42,094 0.37 0MML Strategic Emerging Markets Fund EQUITY GRUPO MEXICO SAB DE CV SER B 1,887,408 741,532 1.41 0MML Strategic Emerging Markets Fund EQUITY MEDIATEK INC 358,477 17,000 0.27 0MML Strategic Emerging Markets Fund EQUITY GRUPO FINANCIERO INBURSA O 405,413 524,534 0.30 0MML Strategic Emerging Markets Fund EQUITY ALSEA SAB DE CV 231,405 243,074 0.17 0MML Strategic Emerging Markets Fund EQUITY KOTAK MAHINDRA BANK LTD 3,849,218 223,900 2.88 0MML Strategic Emerging Markets Fund EQUITY BANK CENTRAL ASIA TBK PT 959,206 525,600 0.72 0

Page 160: Fund Name Asset Class Security Name Base Market …...Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity Date MML Income

Fund Name Asset Class Security Name Base Market Value Shares/Par Value Percent of Fund Interest Rate Maturity DateMML Strategic Emerging Markets Fund EQUITY TATA CONSULTANCY SVCS LTD 3,370,837 99,759 2.52 0MML Strategic Emerging Markets Fund EQUITY AKBANK T.A.S. 433,878 651,198 0.32 0MML Strategic Emerging Markets Fund EQUITY SM INVESTMENTS CORP 1,739,839 95,845 1.30 0MML Strategic Emerging Markets Fund EQUITY NOVATEK PJSC SPONS GDR REG S 234,544 1,712 0.18 0MML Strategic Emerging Markets Fund EQUITY NOVATEK PJSC SPONS GDR REG S 4,323,408 31,597 3.24 0MML Strategic Emerging Markets Fund EQUITY POLYUS PJSC 447,352 2,130 0.33 0MML Strategic Emerging Markets Fund EQUITY AMOREPACIFIC CORP 128,087 920 0.10 0MML Strategic Emerging Markets Fund EQUITY NEW ORIENTAL EDUCATIO SP ADR 364,182 2,436 0.27 0MML Strategic Emerging Markets Fund EQUITY VALE SA SP ADR 1,308,069 123,636 0.98 0MML Strategic Emerging Markets Fund EQUITY SBERBANK OF RUSSIA PJSC 2,358,422 802,803 1.77 0MML Strategic Emerging Markets Fund EQUITY OBEROI REALTY LTD 478,064 88,933 0.36 0MML Strategic Emerging Markets Fund EQUITY AIA GROUP LTD 5,349,190 543,000 4.01 0MML Strategic Emerging Markets Fund EQUITY YANDEX NV A 4,821,453 73,892 3.61 0MML Strategic Emerging Markets Fund EQUITY PRADA S.P.A. 1,611,319 412,800 1.21 0MML Strategic Emerging Markets Fund EQUITY CIE FINANCIERE RICHEMO A REG 858,024 12,810 0.64 0MML Strategic Emerging Markets Fund EQUITY AMBEV SA 623,021 279,013 0.47 0MML Strategic Emerging Markets Fund EQUITY TENCENT HOLDINGS LTD 9,869,737 148,209 7.39 0MML Strategic Emerging Markets Fund EQUITY ALIBABA GROUP HOLDING SP ADR 8,939,050 30,407 6.69 0MML Strategic Emerging Markets Fund EQUITY GRUPO AVAL ACCIONES Y VALORE 437,139 94,824 0.33 0MML Strategic Emerging Markets Fund EQUITY PING AN INSURANCE GROUP CO A 3,817,320 340,562 2.86 0MML Strategic Emerging Markets Fund EQUITY JIANGSU HENGRUI MEDICINE C A 2,796,883 211,287 2.09 0MML Strategic Emerging Markets Fund EQUITY ZEE ENTERTAINMENT ENTERP 24,584 503,840 0.02 0MML Strategic Emerging Markets Fund EQUITY ANHEUSER BUSCH INBEV SA/NV 1,321,749 24,487 0.99 0MML American Funds® Growth Fund EQUITY AMERICAN FDS INS SER 233,880,326 2,314,043 100.00 0MML American Funds® International Fund EQUITY AMER FD INS INTERNATIONAL FD 56,825,764 2,909,665 100.00 0MML American Funds® Core Allocation Fund EQUITY AMER FDS INS GRWTH INC FD 250,367,992 5,001,358 26.98 0MML American Funds® Core Allocation Fund EQUITY AMER FD INS INTERNATIONAL FD 113,878,419 5,830,948 12.27 0MML American Funds® Core Allocation Fund EQUITY AMER FDS INS BLUE CHIP INC GRT 250,582,706 19,592,080 27.00 0MML American Funds® Core Allocation Fund EQUITY AMER FDS INS BOND FD 313,309,069 26,395,035 33.76 0


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