Fund Holdings As of 6/30/2021 Massmutual Core Bond Fund Barings Prior to 5/1/2021, the Fund Name Was Massmutual Premier Core Bond Fund

Fund Holdings As of 6/30/2021 MassMutual Core Bond Fund Barings Prior to 5/1/2021, the Fund name was MassMutual Premier Core Bond Fund. Fund Weighting Security Name % Position Market Value USTREAS T-Bill Auction Ave 3 Mon 12.74 195,233,310 Us 2yr Note (Cbt) Sep21 Xcbt 20210930 10.04 153,783,578 Us Ultra Bond Cbt Sep21 Xcbt 20210921 3.37 51,640,250 Federal National Mortgage Association 3% 2.80 42,905,303 United States Treasury Bonds 3.5% 2.11 32,271,048 United States Treasury Bonds 2.25% 1.58 24,149,075 Federal National Mortgage Association 2% 1.39 21,330,781 Government National Mortgage Association 3.5% 1.29 19,783,269 United States Treasury Notes 0.5% 1.14 17,538,543 Us 5yr Note (Cbt) Sep21 Xcbt 20210930 1.12 17,156,727 Federal National Mortgage Association 2% 1.06 16,297,232 Federal National Mortgage Association 3.5% 1.06 16,265,953 BGME TRUST 2021-VR 2.99% 1.06 16,166,916 United States Treasury Notes 0.12% 0.97 14,904,792 Fnma Pass-Thru I 3.5% 0.76 11,608,875 Federal Home Loan Mortgage Corporation 2% 0.73 11,214,546 Federal Home Loan Mortgage Corporation 3.5% 0.67 10,299,581 Government National Mortgage Association 3% 0.67 10,215,474 Government National Mortgage Association 3% 0.66 10,043,755 Government National Mortgage Association 3% 0.58 8,946,807 Government National Mortgage Association 2.5% 0.49 7,454,812 AT&T Inc 3.55% 0.44 6,810,636 JBS Finance Luxembourg S A R L 3.62% 0.43 6,547,970 Federal National Mortgage Association 3.5% 0.40 6,109,087 Government National Mortgage Association 3.5% 0.39 5,908,132 Government National Mortgage Association 3% 0.37 5,686,578 Anheuser-Busch Companies LLC / Anheuser-Busch InBev Worldwide Inc 4.9% 0.36 5,584,457 The Allstate Corporation 5.75% 0.35 5,411,088 Federal Home Loan Mortgage Corporation 2% 0.35 5,337,279 STARWOOD MORTGAGE RESIDENTIAL TRUST 2.36% 0.35 5,291,708 Federal National Mortgage Association 4% 0.34 5,220,031 MHC COMMERCIAL MORTGAGE TRUST 2021-MHC 2.17% 0.34 5,146,429 Sammons Financial Group Inc 3.35% 0.33 5,131,180 EXTENDED STAY AMERICA TRUST 1% 0.33 5,120,709 SANTANDER DRIVE AUTO RECEIVABLES TRUST 1.35% 0.33 5,005,103 Athene Holding Ltd 6.15% 0.32 4,935,500 VASA TRUST 2021-VASA 2.17% 0.32 4,880,463 Sallie Mae Pfd 144A 1% 0.31 4,811,340 American International Group, Inc. 5.75% 0.31 4,787,944 Sixth Street Specialty Lending Inc 3.88% 0.31 4,782,157 The Boeing Company 1.43% 0.31 4,760,780 BENCHMARK MORTGAGE TRUST 2.85% 0.31 4,721,807 Wave 2019-1 LLC/LTD 3.6% 0.30 4,625,519 Blackrock Tcp Capital Corp 3.9% 0.29 4,482,578 ECMC GROUP STUDENT LOAN TRUST 0.89% 0.29 4,465,868 Morgan Stanley 4.35% 0.29 4,446,539 COLD STORAGE TRUST 2.17% 0.29 4,440,048 BUSINESS JET SECURITIES LLC 2.16% 0.29 4,402,587 Aventura Mall Trust 4.25% 0.29 4,376,639 AmTrust Financial Services Inc. 6.12% 0.29 4,369,914 SOFI ALTERNATIVE TRUST 4.56% 0.28 4,351,926 Fnma Pass-Thru I 4.5% 0.28 4,349,952 Trinity Rail Leasing 2019 Llc 3.82% 0.28 4,314,035 Antares Holdings LP 6% 0.28 4,261,743 Trinity Rail Leasing 2019 Llc 3.1% 0.28 4,261,284 Credit Suisse AG 6.5% 0.27 4,204,260 Aircastle Limited 4.4% 0.27 4,104,801 SLG OFFICE TRUST 2.85% 0.26 4,039,149 BP Capital Markets plc 4.38% 0.26 4,020,375 Prudential Financial, Inc. 5.7% 0.26 3,964,893 Brighthouse Financial Inc. 5.62% 0.25 3,905,788 VEREIT Operating Partnership L.P 3.1% 0.25 3,862,799 NELNET STUDENT LOAN TRUST 2019-4 1.74% 0.25 3,862,597 NMLT 2021-INV1 TRUST 2.71% 0.24 3,735,551 NAVIENT PRIVATE EDUCATION LOAN TRUST 4.04% 0.24 3,730,151 Thrust Engine Leasing 2021 Dac / Thrust Engine Leasing 2021 Statutory Trust 0.24 3,699,859 BGME TRUST 2021-VR 2.99% 0.24 3,698,574 Bank of Nova Scotia 4.65% 0.24 3,638,750 Mizrahi Tefahot Bank Limited 3.08% 0.24 3,620,850 Mplx Lp 6.88% 0.24 3,616,030 El Puerto de Liverpool S.A.B. de C.V. 3.95% 0.24 3,607,031 Global Atlantic Finance Company 1% 0.23 3,590,561 Colombia (Republic of) 6.12% 0.23 3,526,800 Elmwood Clo Ii Ltd / Llc 1.34% 0.23 3,503,150 Fund Weighting Security Name % Position Market Value NAVIENT PRIVATE EDUCATION REFI LOAN TRUST 2.52% 0.23 3,495,463 Discover Bank 4.68% 0.23 3,478,541 Weir Group 2.2% 0.22 3,430,442 SMB PRIVATE EDUCATION LOAN TRUST 2.76% 0.22 3,425,948 Horizon Aircraft Finance III Ltd/LLC 3.42% 0.22 3,415,218 DROP MORTGAGE TRUST 2.32% 0.22 3,375,520 GOODGREEN 2.76% 0.22 3,361,052 Avolon Holdings Funding Limited 4.25% 0.22 3,351,021 Mexico (United Mexican States) 4.75% 0.22 3,343,608 NEWREZ WAREHOUSE SECURITIZATION TRUST 2021-1 1.49% 0.22 3,339,999 CNO Financial Group, Inc. 5.25% 0.22 3,331,831 Nordea Bank ABP 6.62% 0.22 3,316,777 Hercules Capital Inc 4.62% 0.21 3,271,492 Triton Container International Limited 2.05% 0.21 3,236,636 B.A.T. Capital Corporation 4.7% 0.21 3,227,698 First Republic Bank San Francisco 4.38% 0.21 3,213,721 BENCHMARK MORTGAGE TRUST 2.85% 0.21 3,185,451 NAVIENT PRIVATE EDUCATION LOAN TRUST 2.95% 0.21 3,176,321 Viterra Finance B.V. 3.2% 0.21 3,168,012 JPMDB Commercial Mortgage Securities Trust 2017-C7 4.3% 0.20 3,129,009 Athene Global Funding 2015-1 2.67% 0.20 3,123,239 Federal National Mortgage Association 3% 0.20 3,113,722 Enlink Midstream Partners LP 4.15% 0.20 3,112,694 AXIS Specialty Finance PLC 4% 0.20 3,058,081 Us Long Bond(Cbt) Sep21 Xcbt 20210921 0.20 3,054,250 The Timken Company 4.5% 0.20 3,052,408 NAVIENT STUDENT LOAN TRUST 1.44% 0.20 3,043,038 HCA Inc. 3.5% 0.20 3,016,055 WELLS FARGO COMMERCIAL MORTGAGE TRUST 1.92% 0.20 3,007,507 BENCHMARK MORTGAGE TRUST 3.09% 0.20 2,990,260 JPMBB COMMERCIAL MORTGAGE SECURITIES TRUST 3.9% 0.19 2,985,277 BANK 2020-BNK30 3.02% 0.19 2,970,164 EQT Corporation 3.9% 0.19 2,967,362 Planet Fitness Incorporation 3.86% 0.19 2,965,928 Jackson Park Trust 2019-Lic 3.13% 0.19 2,932,512 Blackrock Tcp Capital Corp 4.12% 0.19 2,903,314 Host Hotels & Resorts, L.P. 3.5% 0.19 2,895,073 J.G. WENTWORTH XXXIV LLC 3.26% 0.19 2,873,908 Bpce Sa 1.65% 0.19 2,873,755 Enstar Finance Llc 5.75% 0.19 2,865,375 MANHATTAN WEST 2020-1MW MORTGAGE TRUST 2.41% 0.19 2,863,163 STARWOOD MORTGAGE RESIDENTIAL TRUST 2.49% 0.19 2,839,956 Glencore Funding LLC 4.62% 0.18 2,833,621 NELNET STUDENT LOAN TRUST 3.45% 0.18 2,809,110 Associated Banc-Corp 4.25% 0.18 2,807,409 BLUEMOUNTAIN CLO LTD 1.98% 0.18 2,750,000 Dupont De Nemours Inc 5.32% 0.18 2,734,230 Microsoft Corporation 2.92% 0.18 2,717,212 COLLEGE AVE STUDENT LOANS LLC 3.81% 0.18 2,706,524 Avnet, Inc. 3% 0.18 2,683,280 RenaissanceRe Finance Inc 3.45% 0.17 2,679,247 Enterprise Products Operating LP 5.25% 0.17 2,675,498 Spirit Realty LP 4% 0.17 2,667,393 Charter Communications Operating, LLC/Charter Communications Operating Capi 0.17 2,625,120 Apidos Clo 1.89% 0.17 2,610,133 Castlelake Aircraft Securitization 4.12% 0.17 2,598,278 LIFE 2021-BMR MORTGAGE TRUST 1.82% 0.17 2,556,967 Brookfield Finance Inc. 4.85% 0.17 2,554,953 Ares Finance Co LLC 4% 0.17 2,545,476 ONEMAIN DIRECT AUTO RECEIVABLES TRUST 3.95% 0.17 2,540,884 Syngenta Finance N.V. 4.44% 0.17 2,533,413 Blue Owl Finance Llc 3.12% 0.16 2,518,791 General Motors Company 6.8% 0.16 2,514,083 Nrz Advance Receivables Trust 2015-On1 5.47% 0.16 2,501,580 Slam 2021-1 Limited / Slam 2021-1 Llc 2.43% 0.16 2,500,296 Golub Cap Bdc Inc 3.38% 0.16 2,493,676 Bm1105923 Swaption Dec32 2.94 Put 0.16 2,480,518 Brookfield Finance Inc. 4.35% 0.16 2,478,718 STORE Capital Corp 4.62% 0.16 2,478,240 NAVIENT PRIVATE EDUCATION REFI LOAN TRUST 2.78% 0.16 2,470,510 Vivint Solar Fin V 2018 7.37% 0.16 2,469,213 THL CREDIT WIND RIVER 2018-3 CLO LTD 1.89% 0.16 2,440,112 Trinity Rail Leasing 2010 LLC 4.62% 0.16 2,439,409 EXTENDED STAY AMERICA TRUST 1% 0.16 2,417,243 Adams Outdoor Advertising LP 4.81% 0.16 2,415,730 BBCMS MORTGAGE TRUST 4.41% 0.16 2,385,762 Lazard Group LLC 4.5% 0.15 2,369,829 BX COMMERCIAL MORTGAGE TRUST 2.07% 0.15 2,367,843 Enstar Group Ltd 4.95% 0.15 2,355,992 Park Aerospace Holdings Limited 4.5% 0.15 2,338,620 Energy Transfer LP 6.25% 0.15 2,325,388 Fund Weighting Security Name % Position Market Value Navient Student Loan Trust 1.34% 0.15 2,316,873 BX COMMERCIAL MORTGAGE TRUST 1.9% 0.15 2,302,871 CARVANA AUTO RECEIVABLES TRUST 1.82% 0.15 2,298,858 Plains All American Pipeline L.P./PAA Finance Corp. 6.12% 0.15 2,287,488 RENEW 2.06% 0.15 2,285,924 Ares Capital Corporation 2.15% 0.15 2,263,343 Walt Disney Company 3.6% 0.15 2,257,524 Ares Capital Corporation 4.2% 0.15 2,256,274 Napier Park Global Capital 4.22% 0.15 2,253,976 Nov Inc 3.6% 0.15 2,252,989 Mach 1 Cayman Ltd/Mach 1 Usa LLC 3.47% 0.15 2,224,588 Federal National Mortgage Association 5% 0.14 2,218,668 Entergy Arkansas LLC 2.65% 0.14 2,168,803 MSCI Inc. 3.62% 0.14 2,148,842 HSBC Holdings plc 4.25% 0.14 2,148,404 BX COMMERCIAL MORTGAGE TRUST 1.77% 0.14 2,142,669 Mylan II B.V. 5.25% 0.14 2,136,590 Clear Creek CLO Ltd. 1.39% 0.14 2,120,373 Newfield Exploration Company 5.38% 0.14 2,113,803 MHC COMMERCIAL MORTGAGE TRUST 2021-MHC 1.67% 0.14 2,101,971 CIFC Funding 1.37% 0.14 2,100,575 CenterPoint Energy Resources Corp. 6.62% 0.14 2,093,644 CVS Health Corp 5.93% 0.14 2,093,551 Madison Pk Fdg Xxviii 2018-28 1.78% 0.14 2,090,046 Patterson Uti Eneg 3.95% 0.14 2,086,367 Global Atlantic Finance Company 3.12% 0.14 2,073,840 Apollo Management Holdings, L.P. 4.95% 0.13 2,046,338 WEA Finance LLC 2.88% 0.13 2,012,632 Suttonpark Struct Stl 2017-1 4.19% 0.13 2,012,244 Avolon Holdings Funding Limited 3.25% 0.13 2,006,279 Amcor Flexibles North America Inc 2.69% 0.13 2,000,304 Imperial Brands Finance Plc 3.88% 0.13 1,997,298 SVB Financial Group 2.1% 0.13 1,989,653 American Tower Trust I 3.65% 0.13 1,984,028 Crown Castle Towers LLC 4.24% 0.13 1,976,856 Expedia Group Inc 4.62% 0.13 1,973,083 Aercap Ireland Capital DAC 4.5% 0.13 1,972,750 Labrador Aviation Finance Limited 4.3% 0.13 1,969,426 SBA Tower Trust 1.88% 0.13 1,960,904 Santos Finance Limited 3.65% 0.13 1,957,098 BX COMMERCIAL MORTGAGE TRUST 1.87% 0.13 1,948,143 NBN Co Limited 2.62% 0.13 1,933,086 OXFORD FINANCE FUNDING LLC 3.1% 0.13 1,932,545 Cpts 2019-Cpt Mtg Trust 3.1% 0.13 1,926,795 Benefit Street Partners CLO V Ltd 1.28% 0.13 1,916,922 SMB Private Education Loan Trust 2017-A 3.5% 0.12 1,893,294 Petroleos Mexicanos 5.35% 0.12 1,893,141 Morgan Stanley 3.22% 0.12 1,883,397 Molson Coors Beverage Company 4.2% 0.12 1,883,298 Ares Finance Co III LLC 4.12% 0.12 1,877,344 Vale Overseas Limited 6.25% 0.12 1,866,355 Valley National Bancorp 5.12% 0.12 1,862,471 Global Aircraft Leasing Co Ltd 6.5% 0.12 1,862,303 SIERRA TIMESHARE RECEIVABLES FUNDING LLC 3.17% 0.12 1,853,596 BHMS Mortgage Trust 1.57% 0.12 1,850,005 Appalachian Power Company 4.5% 0.12 1,833,893 AbbVie Inc. 4.7% 0.12 1,830,434 AASET TRUST 3.35% 0.12 1,818,347 EDUCATION LN ASSET BACKED TR I DEL 0% 0.12 1,808,430 MARINER FINANCE ISSUANCE TRUST 2.33% 0.12 1,800,137 KKR CLO 24 LTD 1.55% 0.12 1,800,000 HSBC Holdings plc 4.25% 0.12 1,797,006 Imperial Brands Finance Plc 3.5% 0.12 1,793,886 Barclays PLC 4.34% 0.12 1,789,858 Bank of America Corporation 2.59% 0.12 1,785,504 Axis Specialty Finance LLC 4.9% 0.12 1,770,868 Nov Inc 3.95% 0.11 1,760,164 Bank of America Corporation 6.11% 0.11 1,746,861 Madison Park Xxxii 2.19% 0.11 1,746,701 Goodgreen Trust 2017-1 3.93% 0.11 1,735,866 KNDL 2019-KNSQ Mortgage Trust 1.87% 0.11 1,730,543 PIONEER AIRCRAFT FINANCE LTD 3.97% 0.11 1,724,791 JPMorgan Chase & Co. 5.6% 0.11 1,718,492 Eaton Vance Clo 2018-1 Ltd/Llc. 1.93% 0.11 1,700,107 Brighthouse Financial Inc. 4.7% 0.11 1,695,605 CSMC 2021-NQM3 TRUST 2.32% 0.11 1,692,659 Plains All American Pipeline L.P./PAA Finance Corp. 3.8% 0.11 1,680,947 Thrust Engine Leasing 2021 Dac / Thrust Engine Leasing 2021 Statutory Trust 0.11 1,679,953 CASTLELAKE AIRCRAFT SECURITIZATION TRUST 3.97% 0.11 1,672,612 Bank of America Corporation 7.75% 0.11 1,669,517 NiSource Inc. 4.8% 0.11 1,657,642 Fund Weighting Security Name % Position Market Value J G Wentworth Xlii Llc 3.96% 0.11 1,657,309 BBCMS MORTGAGE TRUST 4.41% 0.11 1,652,679 Axis Specialty Finance LLC 3.9% 0.11 1,643,952 Steele Creek Clo 2018-2 2.46% 0.11 1,643,435 Aviation Capital Group LLC 1.95% 0.11 1,626,110 Goldman Sachs Group, Inc. 5.95% 0.11 1,623,208 Plains All American Pipeline L.P./PAA Finance Corp. 4.7% 0.11 1,617,899 GCI FUNDING I LLC 2.38% 0.11 1,610,585 Avis Budget Rental Car Funding AESOP LLC 4.53% 0.10 1,602,501 USF&G Capital I 8.5% 0.10 1,598,337 ViacomCBS Inc 4.95% 0.10 1,597,564 Cenovus Energy Inc 6.75% 0.10 1,597,456 City of Hope 4.38% 0.10 1,595,777 Halliburton Company 5% 0.10 1,584,892 Taco Bell Funding Llc 4.94% 0.10 1,584,363 Energy Transfer LP 6.12% 0.10 1,574,712 Navient Private Education Refi Loan 4.22% 0.10 1,561,680 Goldman Sachs Group, Inc. 6.75% 0.10 1,550,877 Bank of America Corporation 4.18% 0.10 1,546,873 COLLEGE AVE STUDENT LOANS LLC 4.46% 0.10 1,543,023 SLM Student Loan Trust 0.39% 0.10 1,539,379 Leidos Inc 2.3% 0.10 1,536,602 BUSINESS JET SECURITIES LLC 5.07% 0.10 1,524,564 NAVIENT PRIVATE EDUCATION REFI LOAN TRUST 3.67% 0.10 1,522,469 HSBC Holdings plc 4.38% 0.10 1,514,254 Navient Private Education Loan Trust 3.9% 0.10 1,510,486 VERUS SECURITIZATION TRUST 2.41% 0.10 1,505,403 Store Master Funding I 4.29% 0.10 1,504,915 VOYA CLO LTD 2.04% 0.10 1,500,404 Marriott International, Inc. 2.85% 0.10 1,494,451 Voya Clo 2015-3 Limited/Llc 1.89% 0.10 1,490,762 Wave 2017-1 Llc 6.66% 0.10 1,481,607 GS MORTGAGE SECURITIES TRUST 4% 0.10 1,473,703 Marathon Petroleum Company 6.5% 0.10 1,472,415 SANTANDER REVOLVING AUTO LOAN TRUST 2019-A 3.45% 0.10 1,461,539 Occidental Petroleum Corporation 6.6% 0.10 1,459,724 Bristol-Myers Squibb Company 4.35% 0.09 1,453,832 Nevada Power Company 6.65% 0.09 1,453,399 Carlyle Finance Subsidiary LLC 3.5% 0.09 1,445,942 General Motors Company 4.2% 0.09 1,438,231 HORIZON AIRCRAFT FINANCE II LTD 3.72% 0.09 1,428,820 Service Properties Trust 4.95% 0.09 1,425,131 JPMorgan Chase & Co. 2.96% 0.09 1,419,635 Antares Holdings LP 8.5% 0.09 1,412,838 Goodgreen 2019-1 3.86% 0.09 1,403,389 Cigna Corporation 4.8% 0.09 1,402,216 Norfolk Southern Corporation 4.05% 0.09 1,396,290 Prudential Financial, Inc. 5.62% 0.09 1,395,268 OReilly Automotive, Inc. 4.2% 0.09 1,388,650 Firstenergy Transmission Llc 4.55% 0.09 1,383,146 Markel Corporation 6% 0.09 1,374,525 Teck Resources Limited 6% 0.09 1,374,549 Park Aerospace Holdings Limited 5.25% 0.09 1,360,255 Skymiles Ip Limited & Delta Air Lines Incorporated 4.5% 0.09 1,352,290 MOFT TRUST 2020-ABC 3.59% 0.09 1,339,781 Goodgreen 2016-1 Trus 3.23% 0.09 1,338,386 Bank of America Corporation 4.24% 0.09 1,337,767 Newfield Exploration Company 5.62% 0.09 1,336,201 Devon Energy Corporation 5.6% 0.09 1,332,971 EDLINC STUDENT LOAN FUNDING TRUST 2.1% 0.09 1,331,739 Verizon Communications Inc. 2.99% 0.09 1,330,450 Mexico (United Mexican States) 4.5% 0.09 1,328,878 CITIGROUP COMMERCIAL MORTGAGE TRUST 3.5% 0.09 1,324,008 Sixth Street Specialty Lending Inc 2.5% 0.09 1,323,316 Hero Funding 4.67% 0.09 1,321,546 Lazard Group LLC 3.62% 0.09 1,319,178 SLC Student Loan Trust 0.36% 0.09 1,314,296 ViacomCBS Inc 4.2% 0.09 1,306,825 NELNET STUDENT LOAN TRUST 1.59% 0.09 1,303,261 Flatiron Clo 2019-1 Ltd / Llc 2.06% 0.08 1,301,739 Elmwood Clo III Ltd / Llc 2.13% 0.08 1,300,994 Crestline Denali Clo Xiv. Ltd 1.45% 0.08 1,298,646 Commercial Mortgage Trust 2015-Ccre23 4.18% 0.08 1,288,329 MetLife Capital Trust IV 7.88% 0.08 1,288,062 Amazon.com, Inc. 4.05% 0.08 1,287,887 Cpts 2019-Cpt Mtg Trust 3.1% 0.08 1,287,434 ITC Holdings Corporation 2.95% 0.08 1,285,330 Energy Transfer LP 4.2% 0.08 1,270,705 Antares Holdings LP 3.95% 0.08 1,264,902 Kimco Realty Corporation 4.45% 0.08 1,264,793 Mexico (United Mexican States) 6.75% 0.08 1,262,322 Fund Weighting Security Name % Position Market Value Discovery Communications, LLC 4% 0.08 1,256,307 Reynolds American Inc. 5.85% 0.08 1,255,826 OHA CREDIT FUNDING 4 LTD 1.55% 0.08 1,251,694 Oracle Corporation 3.6% 0.08 1,250,382 522 Fdg Clo 2018-3 A Ltd / 522 Fdg C FRN 2.18% 0.08 1,250,000 MOFT TRUST 2020-ABC 3.36% 0.08 1,249,642 SIERRA TIMESHARE RECEIVABLES FUNDING LLC 4.75% 0.08 1,249,485 CVS Health Corp 6.12% 0.08 1,249,391 PPL Capital Funding Inc. 4% 0.08 1,240,020 Spirit Airlines Incorporation 2015-1 4.1% 0.08 1,233,212 Citigroup Inc. 4.45% 0.08 1,228,079 Teachers Insurance and Annuity Assoc. 4.27% 0.08 1,226,290 Telefonica Emisiones S.A.U. 4.66% 0.08 1,222,180 Smithfield Foods, Inc. 3% 0.08 1,219,234 Navient Student Loan Trust 2015-3 1.59% 0.08 1,208,549 Saudi Arabian Oil Company 4.25% 0.08 1,208,064 CITIGROUP MORTGAGE LOAN TRUST 3.17% 0.08 1,206,226 BBCMS MORTGAGE TRUST 4.41% 0.08 1,204,977 EDUCATION LN ASSET BACKED TR I DEL 0% 0.08 1,201,012 Cbam 2018-6 Ltd / Llc 2.28% 0.08 1,200,245 Thrust Engine Leasing 2021 Dac / Thrust Engine Leasing 2021 Statutory Trust 0.08 1,200,000 MKT 2020-525M MORTGAGE TRUST 3.04% 0.08 1,187,045 Pnmac Gsmr Issuer Trust 2.94% 0.08 1,182,194 Comcast Corporation 4.75% 0.08 1,180,061 OCTAGON INVESTMENT PARTNERS 39 LTD 2.39% 0.08 1,180,104 Golub Cap Bdc Inc 2.5% 0.08 1,173,723 DROP MORTGAGE TRUST 2.82% 0.08 1,167,085 STORE MASTER FUNDING I-VII 2.86% 0.08 1,166,865 Brighthouse Financial Inc. 3.7% 0.08 1,162,922 Enterprise Products Operating LP 5.38% 0.08 1,155,900 Wells Fargo & Company 5.38% 0.07 1,134,421 SLM Student Loan Trust 0.49% 0.07 1,133,667 NELNET STUDENT LOAN TRUST 1.59% 0.07 1,132,503 Vale Overseas Limited 6.88% 0.07 1,130,836 Commercial Mortgage Trust 2015-Ccre23 4.43% 0.07 1,129,057 Willis Engine Structured Trust Iv 4.75% 0.07 1,107,895 ZAXBYS FUNDING LLC 3.24% 0.07 1,107,653 Glencore Finance (Canada) Limited 5.55% 0.07 1,106,721 CAMB Commercial Mortgage Trust 2019-LIFE 1.82% 0.07 1,106,155 Nelnet Student Loan Trust 1.59% 0.07 1,103,090 Horizon Aircraft Finance I Ltd / Horizon Aircraft Finance I Llc 4.46% 0.07 1,101,426 CARLYLE US CLO 2018-4 LTD 1.99% 0.07 1,080,060 Voya Financial Inc 4.7% 0.07 1,064,664 CSX Corporation 4.75% 0.07 1,061,431 Federal National Mortgage Association 3% 0.07 1,060,933 Glencore Funding LLC 3.88% 0.07 1,044,810 Puget Energy Inc 2.38% 0.07 1,041,443 Aercap Ireland Capital DAC 6.5% 0.07 1,038,550 Jbs Usa Lux SA/Jbs Usa Food Company/Jbs Usa Finance Inc 5.5% 0.07 1,037,857 Enlink Midstream Partners LP 4.85% 0.07 1,030,860 REGATTA XIV FUNDING LTD 2.03% 0.07 1,030,143 Cars Db4 LP 3.66% 0.07 1,014,339 ELMWOOD CLO IV LTD 1.42% 0.07 1,003,739 OHA CREDIT FUNDING 4 LTD 2.87% 0.07 1,001,723 Avery Point VII Clo Limited/Corp 3.78% 0.07 1,000,255 Anchorage Capital CLO 2012-1 Ltd. 3.03% 0.07 1,000,172 HPS Loan Management 13-2018 Ltd./HPS Loan Management 13-2018 LLC 2.33% 0.07 1,000,028 Cedar Funding IX CLO 1.17% 0.07 998,759 Nelnet Student Loan Trust 2014-3 1.59% 0.06 978,301 Service Properties Trust 4.5% 0.06 976,825 Pacific Gas and Electric Company 2.5% 0.06 971,120 Kimco Realty Corporation 4.12% 0.06 969,807 Education Loan Asset-Backed Trust I 1.09% 0.06 967,826 KKR Group Finance Co VIII LLC 3.5% 0.06 963,365 General Motors Company 5.15% 0.06 957,940 Verizon Communications Inc. 2.88% 0.06 955,019 GE Capital International Funding Company Unlimited Company 4.42% 0.06 948,209 Apple Inc. 2.65% 0.06 938,474 J.P. MORGAN MORTGAGE TRUST 3.5% 0.06 937,318 Federal National Mortgage Association 5% 0.06 930,450 Qwest Corporation 6.75% 0.06 929,565 Cars Db4 LP 4.18% 0.06 929,118 Structured Asset Securities Corp. 1.29% 0.06 927,229 B.A.T. Capital Corporation 2.26% 0.06 923,826 Spectrum Management Holding Company LLC 6.75% 0.06 912,529 ICG US CLO 2019-1, Ltd. 1.56% 0.06 902,592 SIERRA TIMESHARE RECEIVABLES FUNDING LLC 2.32% 0.06 900,618 CMS Energy Corporation 4.88% 0.06 894,861 Leidos Inc 4.38% 0.06 891,391 B.A.T. Capital Corporation 4.76% 0.06 872,877 Federal National Mortgage Association 3.5% 0.06 871,507 Fund Weighting Security Name % Position Market Value Morgan Stanley Cap I Tst 2018-H3 4.62% 0.06 849,359 Canadian Pacific Railway Company 2.05% 0.06 848,891 Wells Fargo & Company 5.61% 0.06 846,936 MARINER FINANCE ISSUANCE TRUST 2.96% 0.06 842,989 Discovery Communications, LLC 4.65% 0.05 830,983 BUSINESS JET SECURITIES 2020-1 LLC 2.98% 0.05 819,155 GS Mortgage Securities Trust 2012-GC6 4.95% 0.05 809,236 GATX Corporation 1.9% 0.05 805,474 HPS Loan Management 15-2019 LTD / LLC 1.5% 0.05 800,490 CMS Energy Corporation 4.7% 0.05 798,225 Fnma Pass-Thru I 3.5% 0.05 796,849 BALLYROCK CLO LTD 3.31% 0.05 795,461 New York Life Insurance Company 3.75% 0.05 776,705 VEREIT Operating Partnership L.P 3.4% 0.05 772,755 Comcast Corporation 3.97% 0.05 769,057 Navient Private Education Loan Trust 2018 4.44% 0.05 764,525 Charter Communications Operating, LLC/Charter Communications Operating Capi 0.05 764,251 Bamll Commercial Mortgage Securitie 1.42% 0.05 759,061 Tanger Properties Limited Partnership 3.88% 0.05 751,666 Csmc 2019-Ice4 2.22% 0.05 751,405 Benefit Street Partners CLO XVIII Ltd/LLC 2.13% 0.05 750,663 The Cleveland Electric Illuminating Company 5.95% 0.05 749,842 Comcast Corporation 3.45% 0.05 730,493 SIERRA TIMESHARE RECEIVABLES FUNDING LLC 5.2% 0.05 730,143 Hero Funding 3.19% 0.05 711,284 Sequoia Mtg Trust 4% 0.05 709,908 Spirit Realty LP 2.7% 0.05 709,630 Bank of America Corporation 4.27% 0.05 707,096 Ovintiv Inc 6.5% 0.05 704,688 College Loan Tr Ii 1.63% 0.05 700,752 Highwoods Realty Limited Partnership 4.12% 0.05 700,653 Hero Funding 2016-4 3.57% 0.05 695,263 Hero Fdg 2016-3 3.08% 0.05 691,910 J.G.WENTWORTH XXXV LLC 3.87% 0.05 690,204 Dell International L.L.C. and EMC Corporation 8.1% 0.04 688,714 Prudential Financial, Inc. 5.88% 0.04 687,178 CF HIPPOLYTA ISSUER LLC 2.28% 0.04 682,177 Citigroup Inc. 6.62% 0.04 680,631 MADISON PARK FUNDING XXIX LTD 2.39% 0.04 680,103 Citigroup Inc. 6% 0.04 678,205 Sunnova Helios Ii Issuer Llc 4.87% 0.04 659,189 Goodgreen Trust 2017-1 3.74% 0.04 654,534 Goldman Sachs Group, Inc. 6.25% 0.04 653,959 General Electric Company 6.88% 0.04 643,608 Plains All American Pipeline L.P./PAA Finance Corp. 6.65% 0.04 622,422 Cars Db4 LP 3.25% 0.04 603,789 MKT 2020-525M MORTGAGE TRUST 3.04% 0.04 603,282 CANYON CLO LTD 1.55% 0.04 601,277 STORE Capital Corp 2.75% 0.04 569,355 Marathon Petroleum Company 4.5% 0.04 565,434 Petroleos Mexicanos 6.38% 0.04 550,400 Laurel Rd Prime Sl Tr 2017-B 3.02% 0.04 540,735 Higher Education 1.8% 0.04 536,433 Mosaic Solar Loans Llc 2017-1 3.82% 0.03 534,429 Higher Education 0% 0.03 524,716 Spirit Realty LP 3.4% 0.03 522,777 Cars Db4 LP 3.81% 0.03 514,949 GoldenTree Loan Management US CLO 5, Ltd. 2.89% 0.03 501,234 AGL CLO 7 LTD 1.98% 0.03 500,000 CVS Health Corp 5.05% 0.03 480,732 Bm1106194 Swaption Dec 32 2.44 Call 0.03 459,845 Spirit Realty LP 3.2% 0.03 452,189 Wells Fargo Commercial Mortgage Trust 4.56% 0.03 439,402 Laurel Rd Prime Sl Tr 2018-B 3.72% 0.03 437,246 United Air Lines, Inc. 4.6% 0.03 436,591 Molson Coors Beverage Company 5% 0.03 429,797 Goldman Sachs Group, Inc. 4.25% 0.03 419,535 Psmc Trust 3.5% 0.03 412,994 Eaton Vance Clo 2020-1 Ltd/Llc 2.98% 0.03 401,202 CANYON CLO LTD 2.93% 0.03 400,588 Wave 2017-1 Llc 3.84% 0.03 394,596 Citigroup Inc. 8.12% 0.03 388,988 Bre Grand Islander Timeshare 2.94% 0.02 382,395 Federal National Mortgage Association 5% 0.02 371,369 Global Container Assets 2014 3.45% 0.02 352,463 AT&T Inc 3.5% 0.02 334,835 Spirit Realty LP 4.45% 0.02 332,477 Petroleos Mexicanos 6.5% 0.02 311,057 Carlyle Global Market Strategies Clo 2015-3 Limited 3.03% 0.02 309,996 WELLS FARGO MORTGAGE BACKED SECURITIES TRUST 4% 0.02 261,842 Mosaic Solar Loans Llc 2017-1 4.45% 0.02 251,814 Fund Weighting Security Name % Position Market Value Flatiron Clo 2019-1 Ltd / Llc 2.86% 0.02 250,717 Ticp Clo Xiv Ltd / Llc 2.09% 0.02 250,348 Westgate Resorts Llc 2017-1 3.05% 0.02 247,408 Mosaic Solar Loan Trust 4.01% 0.02 240,636 Avolon Holdings Funding Limited 5.5% 0.02 232,345 Hero Funding 2017-2 3.28% 0.01 221,042 Fulton Financial Corporation 3.6% 0.01 219,146 Pemex Project Funding Master Trust 6.62% 0.01 186,879 Hero Funding 2017-2 4.07% 0.01 177,298 Structured Receivables Finance 2010-B LLC 3.73% 0.01 175,882 Fci Fdg 2019-1 Llc 3.63% 0.01 162,627 MVW Owner Trust 2013 2.42% 0.01 147,378 Federal Home Loan Mortgage Corporation 4% 0.01 124,830 Federal Home Loan Mortgage Corporation 7% 0.01 117,939 Government National Mortgage Association 7% 0.01 83,437 Banc America Mortgage Securitites Inc 3.06% 0.00 60,842 Federal National Mortgage Association 1.89% 0.00 48,685 Federal Home Loan Mortgage Corporation 1.44% 0.00 33,531 Government National Mortgage Association 6.5% 0.00 33,507 Fund Weighting Security Name % Position Market Value Government National Mortgage Association 7% 0.00 14,340 Government National Mortgage Association 8% 0.00 13,788 Government National Mortgage Association 7% 0.00 11,650 Government National Mortgage Association 6.5% 0.00 11,472 Government National Mortgage Association 8% 0.00 10,832 Government National Mortgage Association 8% 0.00 4,526 Government National Mortgage Association 7% 0.00 4,400 Government National Mortgage Association 6.5% 0.00 2,405 Government National Mortgage Association 8% 0.00 1,591 Government National Mortgage Association 8% 0.00 1,253 Government National Mortgage Association 8.5% 0.00 868 Government National Mortgage Association 8% 0.00 624 Government National Mortgage Association 8% 0.00 639 Government National Mortgage Association 7% 0.00 390 Government National Mortgage Association 7.5% 0.00 459 Government National Mortgage Association 7% 0.00 334 Government National Mortgage Association 8% 0.00 245 Federal National Mortgage Association 5% 0.02 409,560 Molson Coors Beverage Company 5% 0.02 402,699 Eaton Vance Clo 2020-1 Ltd/Llc 3.04% 0.02 401,261 CANYON CLO LTD 2.99% 0.02 400,454 WELLS FARGO MORTGAGE BACKED SECURITIES TRUST 4% 0.02 370,558 Citigroup Inc. 8.12% 0.02 368,680 Spirit Realty LP 4.45% 0.02 330,420 Bm1106194 Swaption Dec 32 2.44 Call 0.02 321,403 Westgate Resorts Llc 2017-1 3.05% 0.02 318,566 Petroleos Mexicanos 6.5% 0.02 308,275 Carlyle Global Market Strategies Clo 2015-3 Limited 3.07% 0.02 302,124 Mosaic Solar Loans Llc 2017-1 4.45% 0.02 271,546 VEREIT Operating Partnership L.P 2.85% 0.02 256,415 Mosaic Solar Loan Trust 4.01% 0.02 256,175 NELNET PRIVATE ED LN TR 2016-A 3.6% 0.02 252,456 FLATIRON CLO 2019-1 LTD / LLC 2.89% 0.02 250,344 TICP CLO XIV LTD / LLC 2.12% 0.02 250,489 Aaset Trust 2018-2 4.45% 0.01 239,738 HERO FUNDING 2017-2 3.28% 0.01 233,277 Fulton Financial Corporation 3.6% 0.01 221,016 Fci Fdg 2019-1 Llc 3.63% 0.01 208,722 Oncor Electric Delivery Company LLC 7.5% 0.01 198,945 Structured Receivables Finance 2010-B LLC 3.73% 0.01 189,329 HERO FUNDING 2017-2 4.07% 0.01 188,049 Pemex Project Funding Master Trust 6.62% 0.01 183,414 MVW Owner Trust 2013 2.42% 0.01 167,690 Federal Home Loan Mortgage Corporation 4% 0.01 140,722 Federal Home Loan Mortgage Corporation 7% 0.01 128,975 Government National Mortgage Association 7% 0.01 87,629 TRIP Rail Master Funding LLC 2.71% 0.00 73,442 Banc America Mortgage Securitites Inc 3.07% 0.00 71,076 Federal National Mortgage Association 2.52% 0.00 49,753 Duke Energy Progress Inc 6.12% 0.00 47,414 Federal Home Loan Mortgage Corporation 1.46% 0.00 44,149 Government National Mortgage Association 6.5% 0.00 35,636 Government National Mortgage Association 7% 0.00 14,584 Government National Mortgage Association 8% 0.00 14,118 Government National Mortgage Association 6.5% 0.00 12,219 Government National Mortgage Association 7% 0.00 12,022 Government National Mortgage Association 8% 0.00 11,068 Government National Mortgage Association 8% 0.00 4,679 Government National Mortgage Association 7% 0.00 4,654 Government National Mortgage Association 6.5% 0.00 2,538 Government National Mortgage Association 8% 0.00 1,630 Government National Mortgage Association 8% 0.00 1,283 Government National Mortgage Association 8.5% 0.00 905 Government National Mortgage Association 8% 0.00 653

Investors should carefully consider investment objectives, risks, charges and expenses. This and other important information is contained in the fund prospectuses and summary prospectuses, which can be obtained from www.MassMutual.com/mmfunds/ and should be read carefully before investing.

The mention of individual stocks and other securities in this document does not constitute investment advice.

© 2021 Massachusetts Mutual Life Insurance Company (MassMutual®), Springfield, MA. All rights reserved. www.MassMutual.com Principal Underwriter: MML Distributors, LLC. (MMLD), 1295 State St., Springfield, MA 01111. Member FINRA and SIPC (www.FINRA.org and www.SIPC.org). Investment advisory services provided to the Funds by MML Investment Advisers, LLC (MML Investment Advisers). MMLD and MML Investment Advisers are subsidiaries of Massachusetts Mutual Life Insurance Company (MassMutual), Springfield, MA 01111-0001.

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