Holdings of MassMutual Mid Cap Growth Fund
MASSMUTUAL SELECT FUNDS · 178 declared positions · as of Mar 31, 2026
Original filing · Net assets 2.8B $ · Ten largest lines: 17.7 % of the equity sleeve
Country breakdown
Shares computed on the equity sleeve, the only part this site carries.
| Country | Lines | Value (USD) | Share |
|---|---|---|---|
| US | 167 | 2.5B $ | 93.70 % |
| BM | 1 | 40.3M $ | 1.50 % |
| GB | 1 | 35.6M $ | 1.32 % |
| NL | 1 | 18.9M $ | 0.70 % |
| CH | 3 | 18.4M $ | 0.68 % |
| DK | 1 | 16.4M $ | 0.61 % |
| CA | 1 | 14.7M $ | 0.55 % |
| JE | 1 | 14.6M $ | 0.54 % |
| DE | 1 | 8.5M $ | 0.32 % |
| KY | 1 | 2.3M $ | 0.09 % |
Sector breakdown is published in no regulatory filing: neither Form N-PORT nor the LEI reference data carries an activity code. It is absent rather than estimated.
Positions
| Company | Shares | Value (USD) | Weight |
|---|---|---|---|
| Hilton Worldwide Holdings Inc | 182,234 | 55.4M $ | 2.01 % |
| XPO Inc | 278,637 | 54.2M $ | 1.97 % |
| Monolithic Power Systems Inc | 48,041 | 52.5M $ | 1.91 % |
| Lattice Semiconductor Corp | 543,762 | 50.4M $ | 1.83 % |
| Agilent Technologies Inc | 434,387 | 49.5M $ | 1.80 % |
| Mettler-Toledo International Inc | 37,332 | 47.1M $ | 1.71 % |
| Burlington Stores Inc | 143,581 | 46.7M $ | 1.70 % |
| Cencora Inc | 131,835 | 41.4M $ | 1.50 % |
| Alnylam Pharmaceuticals Inc | 121,989 | 40.4M $ | 1.47 % |
| Viking Holdings Ltd | 549,050 | 40.3M $ | 1.46 % |
| Yum! Brands Inc | 242,335 | 37.7M $ | 1.37 % |
| Keysight Technologies Inc | 131,442 | 37.1M $ | 1.35 % |
| MSCI Inc | 68,521 | 36.9M $ | 1.34 % |
| PTC Inc | 257,993 | 36.8M $ | 1.33 % |
| Domino's Pizza Inc | 100,799 | 36.2M $ | 1.31 % |
| TechnipFMC PLC | 515,308 | 35.6M $ | 1.29 % |
| Cheniere Energy Inc | 113,087 | 32.1M $ | 1.16 % |
| Assurant Inc | 141,904 | 30.9M $ | 1.12 % |
| Tyler Technologies Inc | 89,663 | 30.7M $ | 1.11 % |
| Old Dominion Freight Line Inc | 155,317 | 30.3M $ | 1.10 % |
| Liberty Media Corp-Liberty Formula One | 353,735 | 30.1M $ | 1.09 % |
| Dollar Tree Inc | 268,129 | 29.4M $ | 1.07 % |
| Veralto Corp | 327,700 | 29M $ | 1.05 % |
| MACOM TECHNOLOGY SOLUTIONS HOLDINGS INC | 129,881 | 28.8M $ | 1.05 % |
| Veeva Systems Inc | 160,379 | 28.2M $ | 1.02 % |
| Cooper Cos Inc/The | 393,256 | 28.1M $ | 1.02 % |
| New York Times Co/The | 335,199 | 28.1M $ | 1.02 % |
| Microchip Technology Inc | 433,998 | 28M $ | 1.02 % |
| Ferguson Enterprises Inc | 119,039 | 27.8M $ | 1.01 % |
| Quanta Services Inc | 50,187 | 27.6M $ | 1.00 % |
| Planet Fitness Inc | 364,301 | 27.1M $ | 0.98 % |
| EQT Corp | 410,459 | 26.1M $ | 0.95 % |
| Royal Caribbean Cruises Ltd | 90,469 | 24.9M $ | 0.90 % |
| Martin Marietta Materials Inc | 41,611 | 24.5M $ | 0.89 % |
| West Pharmaceutical Services Inc | 97,700 | 24.5M $ | 0.89 % |
| Esab Corp | 248,610 | 24M $ | 0.87 % |
| Ingersoll Rand Inc | 296,171 | 23.7M $ | 0.86 % |
| UL Solutions Inc | 264,118 | 22.6M $ | 0.82 % |
| Cboe Global Markets Inc | 80,286 | 22.6M $ | 0.82 % |
| Ulta Beauty Inc | 42,528 | 22.2M $ | 0.81 % |
| Ross Stores Inc | 102,067 | 22.1M $ | 0.80 % |
| Natera Inc | 109,546 | 21.9M $ | 0.80 % |
| Raymond James Financial Inc | 149,725 | 21.7M $ | 0.79 % |
| TransUnion | 311,726 | 21.6M $ | 0.78 % |
| Pool Corp | 106,126 | 21.5M $ | 0.78 % |
| Avery Dennison Corp | 123,533 | 21.3M $ | 0.77 % |
| Service Corp International/US | 251,347 | 20.7M $ | 0.75 % |
| Marvell Technology Inc | 204,672 | 20.3M $ | 0.74 % |
| Textron Inc | 229,833 | 20.1M $ | 0.73 % |
| Booz Allen Hamilton Holding Corp | 256,617 | 20M $ | 0.73 % |
| Teleflex Inc | 167,300 | 20M $ | 0.73 % |
| Manhattan Associates Inc | 149,100 | 19.8M $ | 0.72 % |
| Elanco Animal Health Inc | 824,585 | 19.7M $ | 0.72 % |
| Ionis Pharmaceuticals Inc | 254,240 | 19.1M $ | 0.69 % |
| NXP Semiconductors NV | 95,944 | 18.9M $ | 0.69 % |
| API Group Corp | 465,456 | 18.9M $ | 0.68 % |
| FTAI Aviation Ltd | 76,655 | 18.8M $ | 0.68 % |
| Paylocity Holding Corp | 172,218 | 18.6M $ | 0.68 % |
| Liberty Live Holdings Inc | 195,008 | 18.4M $ | 0.67 % |
| Everpure Inc | 308,330 | 18.2M $ | 0.66 % |
| Reddit Inc | 132,223 | 17.8M $ | 0.65 % |
| Akamai Technologies Inc | 154,575 | 17.8M $ | 0.64 % |
| Tradeweb Markets Inc | 147,752 | 17.4M $ | 0.63 % |
| Insulet Corp | 79,900 | 16.8M $ | 0.61 % |
| US Foods Holding Corp | 180,561 | 16.6M $ | 0.60 % |
| Ascendis Pharma A/S | 71,578 | 16.4M $ | 0.59 % |
| Knight-Swift Transportation Holdings Inc | 283,485 | 16.3M $ | 0.59 % |
| Ball Corp | 272,242 | 16.1M $ | 0.58 % |
| ITT Inc | 80,000 | 15.2M $ | 0.55 % |
| Teradyne Inc | 50,980 | 15.1M $ | 0.55 % |
| RB Global Inc | 153,800 | 14.7M $ | 0.54 % |
| Zoom Communications Inc | 182,200 | 14.6M $ | 0.53 % |
| Birkenstock Holding Plc | 406,801 | 14.6M $ | 0.53 % |
| MongoDB Inc | 57,108 | 14M $ | 0.51 % |
| Casey's General Stores Inc | 19,183 | 14M $ | 0.51 % |
| United Therapeutics Corp | 23,226 | 13.8M $ | 0.50 % |
| Guidewire Software Inc | 89,364 | 13.4M $ | 0.49 % |
| Markel Group Inc | 6,900 | 13.2M $ | 0.48 % |
| Encompass Health Corp | 136,500 | 13.2M $ | 0.48 % |
| StandardAero Inc | 510,818 | 13.2M $ | 0.48 % |
| McCormick & Co Inc/MD | 255,900 | 12.9M $ | 0.47 % |
| Cloudflare Inc | 61,448 | 12.7M $ | 0.46 % |
| Equifax Inc | 70,226 | 12.6M $ | 0.46 % |
| Wyndham Hotels & Resorts Inc | 155,281 | 12.6M $ | 0.46 % |
| Celsius Holdings Inc | 345,871 | 12.3M $ | 0.45 % |
| Zscaler Inc | 85,125 | 11.9M $ | 0.43 % |
| DT Midstream Inc | 88,534 | 11.9M $ | 0.43 % |
| BWX Technologies Inc | 56,400 | 11.5M $ | 0.42 % |
| Vistra Corp | 75,898 | 11.4M $ | 0.41 % |
| RBC Bearings Inc | 20,807 | 11.3M $ | 0.41 % |
| Dexcom Inc | 169,248 | 10.6M $ | 0.39 % |
| Cytokinetics Inc | 158,500 | 10.4M $ | 0.38 % |
| Fair Isaac Corp | 9,729 | 10.4M $ | 0.38 % |
| Amphenol Corp | 80,112 | 10.1M $ | 0.37 % |
| L3Harris Technologies Inc | 28,343 | 9.8M $ | 0.36 % |
| Builders FirstSource Inc | 111,597 | 9.2M $ | 0.33 % |
| ROBLOX Corp | 161,211 | 9.1M $ | 0.33 % |
| Sportradar Group AG | 540,700 | 9.1M $ | 0.33 % |
| Insmed Inc | 55,280 | 9M $ | 0.33 % |
| Wingstop Inc | 57,872 | 9M $ | 0.33 % |
| Stride Inc | 100,188 | 8.8M $ | 0.32 % |
| Texas Roadhouse Inc | 53,300 | 8.8M $ | 0.32 % |
| Align Technology Inc | 51,155 | 8.8M $ | 0.32 % |
| Circle Internet Group Inc | 90,926 | 8.7M $ | 0.31 % |
| Mueller Industries Inc | 77,635 | 8.6M $ | 0.31 % |
| Biogen Inc | 46,700 | 8.6M $ | 0.31 % |
| BioNTech SE | 95,800 | 8.5M $ | 0.31 % |
| Rollins Inc | 159,166 | 8.5M $ | 0.31 % |
| Murphy USA Inc | 16,726 | 8.3M $ | 0.30 % |
| Vaxcyte Inc | 140,371 | 8.2M $ | 0.30 % |
| TopBuild Corp | 22,650 | 8M $ | 0.29 % |
| ATI Inc | 54,092 | 7.9M $ | 0.29 % |
| IDEXX Laboratories Inc | 13,913 | 7.8M $ | 0.28 % |
| Atlassian Corp | 104,005 | 7.1M $ | 0.26 % |
| Eagle Materials Inc | 36,000 | 6.8M $ | 0.25 % |
| Corpay Inc | 23,345 | 6.8M $ | 0.25 % |
| Permian Resources Corp | 316,001 | 6.7M $ | 0.24 % |
| Jabil Inc | 25,192 | 6.7M $ | 0.24 % |
| Church & Dwight Co Inc | 71,619 | 6.7M $ | 0.24 % |
| QXO Inc | 339,067 | 6.6M $ | 0.24 % |
| Arista Networks Inc | 53,623 | 6.6M $ | 0.24 % |
| Descartes Systems Group Inc/The | 90,674 | 6.5M $ | 0.24 % |
| Tractor Supply Co | 141,827 | 6.4M $ | 0.23 % |
| Apogee Therapeutics Inc | 75,317 | 6.3M $ | 0.23 % |
| Live Nation Entertainment Inc | 40,292 | 6.1M $ | 0.22 % |
| Fortive Corp | 110,681 | 6.1M $ | 0.22 % |
| Rambus Inc | 69,700 | 6M $ | 0.22 % |
| Workday Inc | 45,537 | 5.9M $ | 0.21 % |
| Rocket Lab Corp | 91,533 | 5.9M $ | 0.21 % |
| Dutch Bros Inc | 115,900 | 5.9M $ | 0.21 % |
| Ryan Specialty Holdings Inc | 173,241 | 5.8M $ | 0.21 % |
| Acuity Inc | 20,500 | 5.7M $ | 0.21 % |
| ResMed Inc | 25,569 | 5.7M $ | 0.21 % |
| TPG Inc | 141,378 | 5.7M $ | 0.21 % |
| First Industrial Realty Trust Inc | 97,174 | 5.6M $ | 0.20 % |
| Entegris Inc | 47,494 | 5.6M $ | 0.20 % |
| Avantor Inc | 705,000 | 5.5M $ | 0.20 % |
| Broadridge Financial Solutions Inc | 33,300 | 5.4M $ | 0.20 % |
| Deckers Outdoor Corp | 50,668 | 5.1M $ | 0.18 % |
| Chipotle Mexican Grill Inc | 153,201 | 4.9M $ | 0.18 % |
| Solstice Advanced Materials Inc | 63,960 | 4.9M $ | 0.18 % |
| Alcon AG | 63,587 | 4.8M $ | 0.17 % |
| STERIS PLC | 21,657 | 4.8M $ | 0.17 % |
| Unity Software Inc | 217,287 | 4.8M $ | 0.17 % |
| KLA Corp | 3,219 | 4.7M $ | 0.17 % |
| GE HealthCare Technologies Inc | 65,615 | 4.7M $ | 0.17 % |
| Lululemon Athletica Inc | 30,419 | 4.7M $ | 0.17 % |
| CG oncology Inc | 68,390 | 4.6M $ | 0.17 % |
| CRISPR Therapeutics AG | 96,019 | 4.6M $ | 0.17 % |
| Vertiv Holdings Co | 18,083 | 4.5M $ | 0.16 % |
| Ralliant Corp | 107,671 | 4.5M $ | 0.16 % |
| Caris Life Sciences Inc | 249,038 | 4.5M $ | 0.16 % |
| Aon PLC | 13,701 | 4.4M $ | 0.16 % |
| Waste Connections Inc | 26,824 | 4.4M $ | 0.16 % |
| Datadog Inc | 36,670 | 4.3M $ | 0.16 % |
| DraftKings Inc | 199,700 | 4.3M $ | 0.16 % |
| Snowflake Inc | 27,996 | 4.2M $ | 0.15 % |
| Cintas Corp | 24,050 | 4.1M $ | 0.15 % |
| McGraw Hill Inc | 288,506 | 4M $ | 0.14 % |
| Skyworks Solutions Inc | 71,455 | 3.8M $ | 0.14 % |
| Symbotic Inc | 70,643 | 3.8M $ | 0.14 % |
| Kymera Therapeutics Inc | 45,100 | 3.8M $ | 0.14 % |
| Aurora Innovation Inc | 890,623 | 3.7M $ | 0.13 % |
| Astera Labs Inc | 33,414 | 3.7M $ | 0.13 % |
| Nasdaq Inc | 41,856 | 3.6M $ | 0.13 % |
| CACI International Inc | 6,457 | 3.5M $ | 0.13 % |
| Synaptics Inc | 49,190 | 3.4M $ | 0.13 % |
| Lemonade Inc | 54,654 | 3.4M $ | 0.12 % |
| Motorola Solutions Inc | 7,692 | 3.3M $ | 0.12 % |
| Allegro MicroSystems Inc | 103,594 | 3.3M $ | 0.12 % |
| Block Inc | 49,495 | 3M $ | 0.11 % |
| Carlyle Group Inc/The | 60,809 | 2.9M $ | 0.11 % |
| Trade Desk Inc/The | 126,425 | 2.9M $ | 0.10 % |
| Floor & Decor Holdings Inc | 56,210 | 2.9M $ | 0.10 % |
| QuidelOrtho Corp | 172,000 | 2.8M $ | 0.10 % |
| Nuvalent Inc | 24,303 | 2.5M $ | 0.09 % |
| Revolution Medicines Inc | 25,000 | 2.4M $ | 0.09 % |
| Bullish | 64,700 | 2.3M $ | 0.08 % |