Institutions / Westfield Capital Management Company, L.P. / Holdings
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Westfield Capital Management Company, L.P.

All holdings · as of Mar 31, 2026

250 positions

CompanyClassValueShares% of portfolio
NVIDIA Corp—$1.10B6,317,0394.6%
ASCENDIS PHARMA A/S—$1.10B4,813,4404.6%
Comfort Systems USA Inc—$856.24M620,9153.6%
Apple Inc.—$795.15M3,133,1133.3%
FTAI Aviation Ltd—$697.82M2,848,2272.9%
MICROSOFT CORP—$610.60M1,649,5132.6%
Alphabet Inc.—$582.81M2,026,7442.4%
Howmet Aerospace Inc.—$527.68M2,289,6972.2%
Vertiv Holdings Co—$481.54M1,921,6962.0%
Amazon.com Inc—$474.78M2,279,6542.0%
Axon Enterprise Inc—$451.93M1,064,1341.9%
Broadcom Inc.—$382.84M1,236,9251.6%
ELI LILLY & Co—$335.33M364,5791.4%
Tapestry Inc—$310.28M2,198,8621.3%
Meta Platforms Inc—$301.41M526,8221.3%
LPL Financial Holdings Inc.—$265.18M881,5061.1%
MKS Inc—$240.56M1,046,7631.0%
INSMED INC—$240.12M1,468,4591.0%
VAXCYTE, INC.—$211.88M3,646,1380.9%
Rocket Lab CorpRKLBCommon Stock$203.75M3,172,6110.9%
Netflix Inc—$189.41M1,969,9940.8%
APi Group Corp—$187.81M4,634,9290.8%
Quanta Services Inc—$182.17M331,8160.8%
GE Vernova Inc.—$173.97M199,3060.7%
Ares Management Corporation—$171.59M1,572,7870.7%
RHYTHM PHARMACEUTICALS, INC.—$167.78M1,929,1230.7%
TAIWAN SEMICONDUCTOR MANUFACTURING CO LTDTSMADR$166.78M493,5040.7%
Marvell Technology, Inc.—$165.75M1,673,3810.7%
Bloom Energy Corp—$161.45M1,191,5720.7%
Samsara Inc.—$160.76M5,072,8210.7%
AMETEK Inc—$159.88M745,8320.7%
Permian Resources Corp—$159.50M7,481,4570.7%
Dynatrace, Inc.—$155.67M4,209,5940.7%
Revolution Medicines, Inc.—$151.38M1,556,5780.6%
Natera, Inc.—$150.94M754,7290.6%
Fabrinet—$148.57M284,8740.6%
ABIVAX SA—$147.31M1,322,9380.6%
ServiceNow Inc—$145.76M1,394,1870.6%
TechnipFMC plc—$140.59M2,033,7550.6%
ROYAL CARIBBEAN CRUISES LTD—$139.18M505,7650.6%
Hilton Worldwide Holdings Inc.—$139.09M457,4250.6%
Visa Inc—$137.99M456,5480.6%
Cencora Inc—$137.25M436,9090.6%
ITT INC.—$134.00M703,3090.6%
Celsius Holdings, Inc.—$133.72M3,768,9110.6%
Nextpower Inc.—$133.49M1,107,3460.6%
Cheniere Energy, Inc.—$130.26M459,0440.5%
AMER SPORTS INC—$129.62M3,937,5210.5%
REGAL REXNORD CORP—$127.66M681,7170.5%
MSCI Inc.—$126.00M233,7640.5%
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