Fund Holdings As of 06/30/2021 MassMutual Small Cap Value Fund Wellington | Barrow, Hanley, Mewhinney & Stauss Prior to 5/1/2021, the Fund name was MassMutual Select Small Cap Value Fund. Fund Shares or Par Position Market Security Name Ticker CUSIP Weighting (%) Amount Value ($) Fixed Inc Clearing Corp.Repo 0 0 2.59 2,133,432 2,133,432 Adient PLC ADNT G0084W101 1.84 33,389 1,509,183 Darling Ingredients Inc DAR 237266101 1.65 20,040 1,352,700 Allegheny Technologies Inc ATI 01741R102 1.53 60,431 1,259,986 Primoris Services Corp PRIM 74164F103 1.47 41,115 1,210,014 Texas Capital Bancshares Inc TCBI 88224Q107 1.46 18,846 1,196,533 MGIC Investment Corp MTG 552848103 1.42 86,121 1,171,246 WillScot Mobile Mini Holdings Corp WSC 971378104 1.40 41,166 1,147,296 Gentherm Inc THRM 37253A103 1.38 16,020 1,138,221 Brooks Automation Inc BRKS 114340102 1.36 11,719 1,116,586 Colfax Corp CFX 194014106 1.35 24,267 1,111,671 Infinera Corp INFN 45667G103 1.33 107,403 1,095,511 OFG Bancorp OFG 67103X102 1.31 48,548 1,073,882 Greenbrier Companies Inc GBX 393657101 1.29 24,423 1,064,354 Air Transport Services Group Inc ATSG 00922R105 1.29 45,804 1,064,027 Apogee Enterprises Inc APOG 037598109 1.28 25,901 1,054,948 Kirby Corp KEX 497266106 1.28 17,382 1,054,044 Rogers Corp ROG 775133101 1.27 5,193 1,042,754 Umpqua Holdings Corp UMPQ 904214103 1.26 56,366 1,039,953 Cohu Inc COHU 192576106 1.26 28,182 1,036,816 American Axle & Mfg Holdings Inc AXL 024061103 1.22 97,040 1,004,364 Spectrum Brands Holdings Inc SPB 84790A105 1.18 11,434 972,347 II-VI Inc IIVI 902104108 1.16 13,105 951,292 Diodes Inc DIOD 254543101 1.15 11,899 949,183 Lantheus Holdings Inc LNTH 516544103 1.13 33,717 931,938 Prosperity Bancshares Inc PB 743606105 1.13 12,899 926,148 Faro Technologies Inc FARO 311642102 1.08 11,393 886,034 Element Solutions Inc ESI 28618M106 1.07 37,621 879,579 Sealed Air Corp SEE 81211K100 1.05 14,632 866,946 Tyman PLC TYMN 0 1.05 138,407 862,560 Harsco Corp HSC 415864107 1.04 41,952 856,660 Whirlpool Corp WHR 963320106 1.03 3,895 849,188 White Mountains Insurance Group Ltd WTM G9618E107 1.03 735 843,802 Alleghany Corp Y 017175100 1.03 1,264 843,176 Kennametal Inc KMT 489170100 1.01 23,227 834,314 TriMas Corp TRS 896215209 1.01 27,505 834,227 SunOpta Inc SOY 8676EP108 1.00 67,436 825,417 Enerpac Tool Group Corp Class A EPAC 292765104 0.98 30,272 805,841 Gibraltar Industries Inc ROCK 374689107 0.97 10,432 796,066 Ciena Corp CIEN 171779309 0.95 13,699 779,336 Aramark ARMK 03852U106 0.95 20,883 777,892 UGI Corp UGI 902681105 0.94 16,652 771,154 Belden Inc BDC 077454106 0.90 14,673 742,014 Federal Signal Corp FSS 313855108 0.89 18,258 734,519 Encore Wire Corp WIRE 292562105 0.88 9,585 726,447 Kemper Corp KMPR 488401100 0.88 9,750 720,525 Encompass Health Corp EHC 29261A100 0.87 9,170 715,535 CDK Global Inc CDK 12508E101 0.85 14,109 701,076 Portland General Electric Co POR 736508847 0.85 15,181 699,540 Kontoor Brands Inc KTB 50050N103 0.80 11,704 660,223 CBIZ Inc CBZ 124805102 0.79 19,822 649,567 RPT Realty RPT 74971D101 0.78 49,412 641,368 Magnolia Oil & Gas Corp MGY 559663109 0.77 40,519 633,312 Neenah Inc NP 640079109 0.77 12,618 633,045 Huron Consulting Group Inc HURN 447462102 0.76 12,646 621,551 Synovus Financial Corp SNV 87161C501 0.74 13,788 605,017 Banc of California Inc BANC 05990K106 0.73 34,436 604,007 Hancock Whitney Corp HWC 410120109 0.73 13,517 600,695 Clean Harbors Inc CLH 184496107 0.72 6,364 592,743 Science Applications International Corp SAIC 808625107 0.70 6,578 577,088 American Woodmark Corp AMWD 030506109 0.70 7,040 575,098 Luxfer Holdings PLC LXFR 0 0.69 25,638 570,446 International Bancshares Corp IBOC 459044103 0.67 12,918 554,699 Piedmont Office Realty Trust Inc PDM 720190206 0.67 29,862 551,551 Physicians Realty Trust DOC 71943U104 0.67 29,801 550,424 Materion Corp MTRN 576690101 0.67 7,273 548,021 Photronics Inc PLAB 719405102 0.66 41,206 544,331 Orion Engineered Carbons SA OEC L72967109 0.66 28,537 541,918 Mueller Industries Inc MLI 624756102 0.65 12,280 531,847 CTS Corp CTS 126501105 0.64 14,187 527,189 Hexcel Corp HXL 428291108 0.63 8,325 519,480 Tri Pointe Homes Inc TPH 87265H109 0.63 24,182 518,220 Hostess Brands Inc Class A TWNK 44109J106 0.63 31,974 517,659 Brandywine Realty Trust BDN 105368203 0.63 37,707 516,963 Fund Shares or Par Position Market Security Name Ticker CUSIP Weighting (%) Amount Value ($) Cranswick PLC CWK 0 0.62 9,202 505,721 WNS (Holdings) Ltd ADR WNS 92932M101 0.60 6,210 495,993 ICF International Inc ICFI 44925C103 0.60 5,633 494,915 Post Holdings Inc POST 737446104 0.60 4,542 492,671 Alexander & Baldwin Inc ALEX 014491104 0.58 26,243 480,772 ACCO Brands Corp ACCO 00081T108 0.58 55,679 480,510 Webster Financial Corp WBS 947890109 0.58 8,870 473,126 GATX Corp GATX 361448103 0.57 5,257 465,087 Allscripts Healthcare Solutions Inc MDRX 01988P108 0.56 25,015 463,028 Reinsurance Group of America Inc RGA 759351604 0.54 3,912 445,968 Great Western Bancorp Inc GWB 391416104 0.53 13,409 439,681 Wyndham Hotels & Resorts Inc Ordinary Shares WH 98311A105 0.53 6,081 439,595 Progress Software Corp PRGS 743312100 0.52 9,237 427,211 ExlService Holdings Inc EXLS 302081104 0.51 3,954 420,152 BrightView Holdings Inc BV 10948C107 0.51 25,780 415,574 Assured Guaranty Ltd AGO G0585R106 0.50 8,655 410,939 Atlantic Union Bankshares Corp AUB 04911A107 0.49 11,095 401,861 Eastern Bankshares Inc Ordinary Shares EBC 27627N105 0.49 19,502 401,156 UniFirst Corp UNF 904708104 0.49 1,709 401,000 Spire Inc SR 84857L101 0.49 5,522 399,075 Monro Inc MNRO 610236101 0.48 6,195 393,444 Ferroglobe PLC GSM G33856108 0.46 62,436 382,108 New Jersey Resources Corp NJR 646025106 0.46 9,645 381,653 First Midwest Bancorp Inc FMBI 320867104 0.46 18,986 376,492 First Citizens BancShares Inc Class A FCNCA 31946M103 0.45 445 370,569 C&C Group PLC CCR 0 0.45 110,029 369,785 SiriusPoint Ltd SPNT G8192H106 0.45 36,396 366,508 H.B. Fuller Co FUL 359694106 0.44 5,723 364,040 PotlatchDeltic Corp PCH 737630103 0.44 6,823 362,642 Forrester Research Inc FORR 346563109 0.43 7,743 354,629 Northwest Bancshares Inc NWBI 667340103 0.43 25,935 353,753 NMI Holdings Inc A NMIH 629209305 0.43 15,589 350,441 Stepan Co SCL 858586100 0.43 2,913 350,347 Owens & Minor Inc OMI 690732102 0.43 8,273 350,196 NOW Inc DNOW 67011P100 0.42 36,402 345,455 Syneos Health Inc Class A SYNH 87166B102 0.42 3,847 344,268 Lexington Realty Trust LXP 529043101 0.40 27,769 331,840 Haemonetics Corp HAE 405024100 0.40 4,966 330,934 Albany International Corp AIN 012348108 0.40 3,705 330,708 Dorian LPG Ltd LPG Y2106R110 0.40 23,256 328,375 Thermon Group Holdings Inc THR 88362T103 0.40 19,166 326,589 Vishay Precision Group Inc VPG 92835K103 0.39 9,492 323,108 Corporate Office Properties Trust OFC 22002T108 0.38 11,074 309,961 Argo Group International Holdings Ltd ARGO G0464B107 0.37 5,833 302,324 1st Source Corp SRCE 336901103 0.35 6,230 289,446 Mednax Inc MD 58502B106 0.32 8,729 263,179 ProAssurance Corp PRA 74267C106 0.31 11,026 250,842 Axalta Coating Systems Ltd AXTA G0750C108 0.27 7,410 225,931 Onto Innovation Inc ONTO 683344105 0.27 3,043 222,261 Chesapeake Energy Corp Ordinary Shares - New CHK 165167735 0.26 4,169 216,454 AMN Healthcare Services Inc AMN 001744101 0.26 2,203 213,647 Coherent Inc COHR 192479103 0.22 689 182,130 Invacare Corp IVC 461203101 0.20 20,014 161,513 Louisiana-Pacific Corp LPX 546347105 0.18 2,506 151,087 Park Aerospace Corp PKE 70014A104 0.17 9,323 138,913 Scorpio Tankers Inc STNG Y7542C130 0.16 5,967 131,572 Bristow Group Inc Old VTOL 11040G103 0.10 3,148 80,620 Gbp 0 0 0.00 75 75 Ferroglobe Rep + Wrnty Ins Tru Non Transferable Bene Int Uni 0 0 0.00 234,800

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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