MassMutual Mid Cap Growth Fund

Fund Profile

Fund profile

Tickers

MEFAX, MMELX, MEFNX, MGRFX, MEFYX, MEFZX, MEFFX, MMNGX

Fund manager

MassMutual Equity Opports I

Total assets

$4.95 bn

Liabilities

$108.84 mm

Net assets

$4.84 bn

Number of holdings

194.00

194 Holdings

As of Dec 2024

Security	$Holding	Balance	% of Fund	Category	Position	Country
MRVL Marvell Technology, Inc.	137.71 mm	1.25 mm shares	2.85	Common equity	Long	USA
TTD The Trade Desk, Inc.	121.46 mm	1.03 mm shares	2.51	Common equity	Long	USA
HOLX Hologic, Inc.	86.04 mm	1.19 mm shares	1.78	Common equity	Long	USA
VEEV Veeva Systems Inc.	85.14 mm	404.94 k shares	1.76	Common equity	Long	USA
A Agilent Technologies, Inc.	76.13 mm	566.73 k shares	1.57	Common equity	Long	USA
DPZ Domino's Pizza, Inc.	71.35 mm	169.99 k shares	1.47	Common equity	Long	USA
LNG Cheniere Energy, Inc.	71.14 mm	331.07 k shares	1.47	Common equity	Long	USA
LSCC Lattice Semiconductor Corporation	65.81 mm	1.16 mm shares	1.36	Common equity	Long	USA
PTC PTC Inc.	65.50 mm	356.21 k shares	1.35	Common equity	Long	USA
ROST Ross Stores, Inc.	65.10 mm	430.34 k shares	1.35	Common equity	Long	USA
TFX Teleflex Incorporated	64.62 mm	363.10 k shares	1.34	Common equity	Long	USA
FIXED INC CLEARING CORP.REPO	63.30 mm	63.30 mm principal	1.31	Repurchase agreement	Long	USA
BURL Burlington Stores, Inc.	59.80 mm	209.79 k shares	1.24	Common equity	Long	USA
FICO Fair Isaac Corporation	59.49 mm	29.88 k shares	1.23	Common equity	Long	USA
AVTR Avantor, Inc.	56.25 mm	2.67 mm shares	1.16	Common equity	Long	USA
HLT Hilton Worldwide Holdings Inc.	55.41 mm	224.20 k shares	1.15	Common equity	Long	USA
FTNT Fortinet, Inc.	55.05 mm	582.61 k shares	1.14	Common equity	Long	USA
MCHP Microchip Technology Incorporated	54.98 mm	958.60 k shares	1.14	Common equity	Long	USA
ALNY Alnylam Pharmaceuticals, Inc.	54.35 mm	230.97 k shares	1.12	Common equity	Long	USA
DKNG DraftKings Inc.	52.94 mm	1.42 mm shares	1.09	Common equity	Long	USA
AIZ Assurant, Inc.	51.71 mm	242.50 k shares	1.07	Common equity	Long	USA
TYL Tyler Technologies, Inc.	51.55 mm	89.40 k shares	1.07	Common equity	Long	USA
TXT Textron Inc.	51.19 mm	669.20 k shares	1.06	Common equity	Long	USA
IR Ingersoll Rand Inc.	50.87 mm	562.40 k shares	1.05	Common equity	Long	USA
BALL Ball Corporation	48.03 mm	871.30 k shares	0.99	Common equity	Long	USA
YUM Yum! Brands, Inc.	47.76 mm	355.96 k shares	0.99	Common equity	Long	USA
EFX Equifax Inc.	47.58 mm	186.68 k shares	0.98	Common equity	Long	USA
AVY Avery Dennison Corporation	46.15 mm	246.60 k shares	0.95	Common equity	Long	USA
FTV Fortive Corporation	45.38 mm	605.11 k shares	0.94	Common equity	Long	USA
BATRA The Liberty Braves Group	45.15 mm	487.22 k shares	0.93	Common equity	Long	USA
ALC Alcon Inc.	45.03 mm	530.44 k shares	0.93	Common equity	Long	Switzerland
FTI TechnipFMC plc	44.13 mm	1.53 mm shares	0.91	Common equity	Long	UK
XPO XPO Logistics, Inc.	44.11 mm	336.31 k shares	0.91	Common equity	Long	USA
DLTR Dollar Tree, Inc.	43.08 mm	574.90 k shares	0.89	Common equity	Long	USA
ESAB ESAB Corporation	43.05 mm	358.90 k shares	0.89	Common equity	Long	USA
JBHT J.B. Hunt Transport Services, Inc.	42.84 mm	251.04 k shares	0.89	Common equity	Long	USA
PCTY Paylocity Holding Corporation	42.57 mm	213.43 k shares	0.88	Common equity	Long	USA
PLTR Palantir Technologies Inc.	40.89 mm	540.62 k shares	0.84	Common equity	Long	USA
EQT EQT Corporation	40.83 mm	885.50 k shares	0.84	Common equity	Long	USA
FTAI FTAI Aviation Ltd.	38.68 mm	268.53 k shares	0.80	Common equity	Long	Cayman Islands
MTD Mettler-Toledo International Inc.	38.30 mm	31.30 k shares	0.79	Common equity	Long	USA
RJF Raymond James Financial, Inc.	37.92 mm	244.10 k shares	0.78	Common equity	Long	USA
CASY Casey's General Stores, Inc.	37.84 mm	95.50 k shares	0.78	Common equity	Long	USA
COO The Cooper Companies, Inc.	37.59 mm	408.90 k shares	0.78	Common equity	Long	USA
BFAM Bright Horizons Family Solutions Inc.	37.48 mm	338.11 k shares	0.77	Common equity	Long	USA
CPAY Corpay, Inc.	37.16 mm	109.80 k shares	0.77	Common equity	Long	USA
ALGN Align Technology, Inc.	36.83 mm	176.65 k shares	0.76	Common equity	Long	USA
MLM Martin Marietta Materials, Inc.	36.62 mm	70.90 k shares	0.76	Common equity	Long	USA
CCCS CCC Intelligent Solutions Holdings Inc.	36.33 mm	3.10 mm shares	0.75	Common equity	Long	USA
TRU TransUnion	33.72 mm	363.72 k shares	0.70	Common equity	Long	USA
CSGP CoStar Group, Inc.	33.57 mm	468.96 k shares	0.69	Common equity	Long	USA
APH Amphenol Corporation	33.50 mm	482.41 k shares	0.69	Common equity	Long	USA
PLNT Planet Fitness, Inc.	33.32 mm	337.00 k shares	0.69	Common equity	Long	USA
APP AppLovin Corporation	33.08 mm	102.14 k shares	0.68	Common equity	Long	USA
CBOE Cboe Global Markets, Inc.	32.28 mm	165.20 k shares	0.67	Common equity	Long	USA
BR Broadridge Financial Solutions, Inc.	32.20 mm	142.40 k shares	0.67	Common equity	Long	USA
Intercontinental Exchange, Inc.	32.04 mm	215.00 k shares	0.66	Common equity	Long	USA
BRKR Bruker Corporation	31.85 mm	543.35 k shares	0.66	Common equity	Long	USA
ZM Zoom Video Communications, Inc.	31.02 mm	380.10 k shares	0.64	Common equity	Long	USA
SPOT Spotify Technology S.A.	30.82 mm	68.90 k shares	0.64	Common equity	Long	Luxembourg
KEYS Keysight Technologies, Inc.	30.58 mm	190.40 k shares	0.63	Common equity	Long	USA
PWR Quanta Services, Inc.	30.16 mm	95.42 k shares	0.62	Common equity	Long	USA
BWXT BWX Technologies, Inc.	29.58 mm	265.55 k shares	0.61	Common equity	Long	USA
TOST Toast, Inc.	29.05 mm	797.00 k shares	0.60	Common equity	Long	USA
MKTX MarketAxess Holdings Inc.	29.02 mm	128.40 k shares	0.60	Common equity	Long	USA
NTRA Natera, Inc.	28.88 mm	182.46 k shares	0.60	Common equity	Long	USA
KKR KKR & Co. Inc.	28.77 mm	194.48 k shares	0.59	Common equity	Long	USA
RDDT Reddit, Inc.	27.52 mm	168.38 k shares	0.57	Common equity	Long	USA
TEAM Atlassian Corporation	26.72 mm	109.80 k shares	0.55	Common equity	Long	USA
XYZ Block, Inc.	25.71 mm	302.52 k shares	0.53	Common equity	Long	USA
TWLO Twilio Inc.	24.86 mm	230.02 k shares	0.51	Common equity	Long	USA
ANET Arista Networks, Inc.	24.51 mm	221.77 k shares	0.51	Common equity	Long	USA
MPWR Monolithic Power Systems, Inc.	24.31 mm	41.09 k shares	0.50	Common equity	Long	USA
BIIB Biogen Inc.	24.25 mm	158.60 k shares	0.50	Common equity	Long	USA
PSTG Pure Storage, Inc.	23.68 mm	385.50 k shares	0.49	Common equity	Long	USA
WCN Waste Connections, Inc.	23.57 mm	137.35 k shares	0.49	Common equity	Long	Canada
VRSK Verisk Analytics, Inc.	23.14 mm	84.00 k shares	0.48	Common equity	Long	USA
FIVE Five Below, Inc.	22.56 mm	214.93 k shares	0.47	Common equity	Long	USA
IONS Ionis Pharmaceuticals, Inc.	21.88 mm	625.72 k shares	0.45	Common equity	Long	USA
BECN Beacon Roofing Supply, Inc.	21.64 mm	213.00 k shares	0.45	Common equity	Long	USA
VIK Viking Holdings Ltd	21.57 mm	489.57 k shares	0.45	Common equity	Long	Bermuda
NYT The New York Times Company	21.25 mm	408.20 k shares	0.44	Common equity	Long	USA
Ferguson Enterprises Inc.	21.24 mm	122.40 k shares	0.44	Common equity	Long	USA
IEX IDEX Corporation	21.22 mm	101.40 k shares	0.44	Common equity	Long	USA
MTCH Match Group, Inc.	20.69 mm	632.56 k shares	0.43	Common equity	Long	USA
SEE Sealed Air Corporation	20.45 mm	604.60 k shares	0.42	Common equity	Long	USA
EXE Expand Energy Corporation	20.32 mm	204.10 k shares	0.42	Common equity	Long	USA
URI United Rentals, Inc.	19.79 mm	28.10 k shares	0.41	Common equity	Long	USA
VLTO Veralto Corporation	19.70 mm	193.40 k shares	0.41	Common equity	Long	USA
LNSTY London Stock Exchange Group plc	19.68 mm	150.30 k shares	0.41	Common equity	Long	USA
BBWI Bath & Body Works, Inc.	19.51 mm	503.26 k shares	0.40	Common equity	Long	USA
ONON On Holding AG	19.25 mm	351.45 k shares	0.40	Common equity	Long	Switzerland
APO Apollo Global Management, Inc.	19.22 mm	116.38 k shares	0.40	Common equity	Long	USA
HUBS HubSpot, Inc.	19.14 mm	27.48 k shares	0.40	Common equity	Long	USA
MOH Molina Healthcare, Inc.	18.83 mm	64.70 k shares	0.39	Common equity	Long	USA
QDEL QuidelOrtho Corporation	18.15 mm	407.50 k shares	0.38	Common equity	Long	USA
EPAM EPAM Systems, Inc.	17.96 mm	76.80 k shares	0.37	Common equity	Long	USA
EXP Eagle Materials Inc.	17.86 mm	72.37 k shares	0.37	Common equity	Long	USA
STZ Constellation Brands, Inc.	17.64 mm	79.80 k shares	0.36	Common equity	Long	USA
MDB MongoDB, Inc.	17.63 mm	75.74 k shares	0.36	Common equity	Long	USA
ASND Ascendis Pharma A/S	17.31 mm	125.70 k shares	0.36	Common equity	Long	Denmark
NXPI NXP Semiconductors N.V.	17.27 mm	83.10 k shares	0.36	Common equity	Long	Netherlands
BILL Bill.com Holdings, Inc.	17.24 mm	203.53 k shares	0.36	Common equity	Long	USA
GWRE Guidewire Software, Inc.	16.73 mm	99.22 k shares	0.35	Common equity	Long	USA
CG The Carlyle Group Inc.	16.30 mm	322.84 k shares	0.34	Common equity	Long	USA
ENOV Enovis Corporation	16.06 mm	366.10 k shares	0.33	Common equity	Long	USA
ARGX argenx SE	15.99 mm	26.00 k shares	0.33	Common equity	Long	Netherlands
AXS AXIS Capital Holdings Limited	15.93 mm	179.70 k shares	0.33	Common equity	Long	Bermuda
MKL Markel Corporation	15.71 mm	9.10 k shares	0.32	Common equity	Long	USA
RRC Range Resources Corporation	15.52 mm	431.40 k shares	0.32	Common equity	Long	USA
COIN Coinbase Global, Inc.	15.39 mm	62.00 k shares	0.32	Common equity	Long	USA
ODFL Old Dominion Freight Line, Inc.	15.10 mm	85.60 k shares	0.31	Common equity	Long	USA
CTSH Cognizant Technology Solutions Corporation	14.75 mm	191.87 k shares	0.30	Common equity	Long	USA
ULTA Ulta Beauty, Inc.	14.61 mm	33.60 k shares	0.30	Common equity	Long	USA
MKC McCormick & Company, Incorporated	14.50 mm	190.20 k shares	0.30	Common equity	Long	USA
ACHC Acadia Healthcare Company, Inc.	14.44 mm	364.10 k shares	0.30	Common equity	Long	USA
AON Aon plc	14.39 mm	40.07 k shares	0.30	Common equity	Long	Ireland
RPM RPM International Inc.	14.32 mm	116.40 k shares	0.30	Common equity	Long	USA
DXCM DexCom, Inc.	14.28 mm	183.58 k shares	0.30	Common equity	Long	USA
BIRK Birkenstock Holding plc	13.90 mm	245.36 k shares	0.29	Common equity	Long	Jersey
INSP Inspire Medical Systems, Inc.	13.52 mm	72.92 k shares	0.28	Common equity	Long	USA
SRPT Sarepta Therapeutics, Inc.	13.42 mm	110.37 k shares	0.28	Common equity	Long	USA
PR Permian Resources Corporation	13.08 mm	909.32 k shares	0.27	Common equity	Long	USA
Reynolds Consumer Products, Inc.	12.94 mm	479.50 k shares	0.27	Common equity	Long	USA
MSCI MSCI Inc.	12.86 mm	21.44 k shares	0.27	Common equity	Long	USA
MAT Mattel, Inc.	12.77 mm	720.53 k shares	0.26	Common equity	Long	USA
LHX L3Harris Technologies, Inc.	12.71 mm	60.43 k shares	0.26	Common equity	Long	USA
STE STERIS plc	12.37 mm	60.20 k shares	0.26	Common equity	Long	Ireland
LAD Lithia Motors, Inc.	12.36 mm	34.59 k shares	0.26	Common equity	Long	USA
RMD ResMed Inc.	12.29 mm	53.74 k shares	0.25	Common equity	Long	USA
Weatherford International plc	11.80 mm	164.70 k shares	0.24	Common equity	Long	Ireland
CART Instacart (Maplebear Inc.)	11.62 mm	280.60 k shares	0.24	Common equity	Long	USA
EXAS Exact Sciences Corporation	11.59 mm	206.20 k shares	0.24	Common equity	Long	USA
CGNX Cognex Corporation	11.55 mm	322.22 k shares	0.24	Common equity	Long	USA
CYTK Cytokinetics, Incorporated	11.48 mm	244.10 k shares	0.24	Common equity	Long	USA
ATI ATI Inc.	11.45 mm	207.98 k shares	0.24	Common equity	Long	USA
WST West Pharmaceutical Services, Inc.	11.27 mm	34.40 k shares	0.23	Common equity	Long	USA
ZS Zscaler, Inc.	11.21 mm	62.14 k shares	0.23	Common equity	Long	USA
TSCO Tractor Supply Company	10.98 mm	207.00 k shares	0.23	Common equity	Long	USA
DDOG Datadog, Inc.	10.76 mm	75.30 k shares	0.22	Common equity	Long	USA
ROP Roper Technologies, Inc.	10.55 mm	20.30 k shares	0.22	Common equity	Long	USA
MOD Modine Manufacturing Company	10.48 mm	90.40 k shares	0.22	Common equity	Long	USA
IDXX IDEXX Laboratories, Inc.	10.44 mm	25.25 k shares	0.22	Common equity	Long	USA
IT Gartner, Inc.	10.37 mm	21.40 k shares	0.21	Common equity	Long	USA
BLDR Builders FirstSource, Inc.	9.98 mm	69.86 k shares	0.21	Common equity	Long	USA
CTAS Cintas Corporation	9.52 mm	52.10 k shares	0.20	Common equity	Long	USA
BLD TopBuild Corp.	9.34 mm	30.00 k shares	0.19	Common equity	Long	USA
ROKU Roku, Inc.	9.29 mm	124.90 k shares	0.19	Common equity	Long	USA
ULS UL Solutions Inc.	9.15 mm	183.50 k shares	0.19	Common equity	Long	USA
SARO StandardAero, Inc.	9.09 mm	366.96 k shares	0.19	Common equity	Long	USA
EHC Encompass Health Corporation	9.04 mm	97.90 k shares	0.19	Common equity	Long	USA
KNX Knight-Swift Transportation Holdings Inc.	9.02 mm	169.97 k shares	0.19	Common equity	Long	USA
ROL Rollins, Inc.	8.98 mm	193.76 k shares	0.19	Common equity	Long	USA
KLAC KLA Corporation	8.92 mm	14.15 k shares	0.18	Common equity	Long	USA
BWA BorgWarner Inc.	8.85 mm	278.52 k shares	0.18	Common equity	Long	USA
CZR Caesars Entertainment, Inc.	8.80 mm	263.43 k shares	0.18	Common equity	Long	USA
KBR KBR, Inc.	8.62 mm	148.85 k shares	0.18	Common equity	Long	USA
FR First Industrial Realty Trust, Inc.	8.47 mm	168.93 k shares	0.18	Common equity	Long	USA
HWM Howmet Aerospace Inc.	8.36 mm	76.40 k shares	0.17	Common equity	Long	USA
THS TreeHouse Foods, Inc.	8.30 mm	236.20 k shares	0.17	Common equity	Long	USA
CRWD CrowdStrike Holdings, Inc.	8.15 mm	23.81 k shares	0.17	Common equity	Long	USA
LW Lamb Weston Holdings, Inc.	7.91 mm	118.34 k shares	0.16	Common equity	Long	USA
ITT ITT Inc.	7.86 mm	55.00 k shares	0.16	Common equity	Long	USA
PCVX Vaxcyte, Inc.	7.69 mm	93.97 k shares	0.16	Common equity	Long	USA
CMG Chipotle Mexican Grill, Inc.	7.26 mm	120.40 k shares	0.15	Common equity	Long	USA
CRSP CRISPR Therapeutics AG	7.25 mm	184.21 k shares	0.15	Common equity	Long	Switzerland
DUOL Duolingo, Inc.	6.94 mm	21.40 k shares	0.14	Common equity	Long	USA
Prime Portfolio	6.53 mm	6.53 mm shares	0.13	Short-term investment vehicle	Long	USA
GEHC GE HealthCare Technologies Inc.	6.50 mm	83.09 k shares	0.13	Common equity	Long	USA
MNDY monday.com Ltd.	6.47 mm	27.50 k shares	0.13	Common equity	Long	Israel
DG Dollar General Corporation	6.45 mm	85.06 k shares	0.13	Common equity	Long	USA
PEN Penumbra, Inc.	6.41 mm	27.00 k shares	0.13	Common equity	Long	USA
SAM The Boston Beer Company, Inc.	6.24 mm	20.80 k shares	0.13	Common equity	Long	USA
LULU Lululemon Athletica Inc.	6.16 mm	16.10 k shares	0.13	Common equity	Long	USA
LFUS Littelfuse, Inc.	6.03 mm	25.60 k shares	0.12	Common equity	Long	USA
TPG TPG Inc.	5.94 mm	94.60 k shares	0.12	Common equity	Long	USA
NDAQ Nasdaq, Inc.	5.60 mm	72.40 k shares	0.12	Common equity	Long	USA
TREX Trex Company, Inc.	5.47 mm	79.22 k shares	0.11	Common equity	Long	USA
MBLY Mobileye Global Inc.	5.12 mm	257.28 k shares	0.11	Common equity	Long	USA
SWK Stanley Black & Decker, Inc.	5.03 mm	62.66 k shares	0.10	Common equity	Long	USA
BATRA The Liberty Braves Group	5.00 mm	73.40 k shares	0.10	Common equity	Long	USA
SKX Skechers U.S.A., Inc.	4.95 mm	73.56 k shares	0.10	Common equity	Long	USA
TC25HIZF2	4.60 mm	77.61 k shares	0.10	Preferred equity	Long	USA
TC2K5K6F9	4.37 mm	47.26 k shares	0.09	Preferred equity	Long	USA
OS OneStream, Inc. Class A Common Stock	4.34 mm	152.32 k shares	0.09	Common equity	Long	USA
UTHR United Therapeutics Corporation	4.31 mm	12.21 k shares	0.09	Common equity	Long	USA
TXRH Texas Roadhouse, Inc.	3.86 mm	21.40 k shares	0.08	Common equity	Long	USA
PP TC5S9AX42	3.46 mm	177.13 k shares	0.07	Preferred equity	Long	USA
TC13PNHL5	3.04 mm	618.03 k shares	0.06	Preferred equity	Long	USA
INSM Insmed Incorporated	2.27 mm	32.92 k shares	0.05	Common equity	Long	USA
ENTG Entegris, Inc.	1.94 mm	19.55 k shares	0.04	Common equity	Long	USA
TTAN ServiceTitan, Inc.	1.84 mm	17.89 k shares	0.04	Common equity	Long	USA
TC7AXBYR8	1.07 mm	149.93 k shares	0.02	Preferred equity	Long	USA
STIF-TYPE INSTRUMENT	370.14	370.14 principal	0.00	Short-term investment vehicle	Long	USA