Fund Holdings — WESTFIELD CAPITAL MANAGEMENT CO LP

Total Portfolio Value:
$24.01B
Total Bought:
$4.21B
Total Sold:
$3.86B
Net Transaction:
+$349.74M
Notable People:
William Albert Muggia, Richard Dailyong Lee
Securities
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SharesValue
Q3 2025
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Q4 2025
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Change
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Q3 2025
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Q4 2025
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Weight (%)
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Change
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NVIDIA Corporation(NVDA)6,507,1655,951,049-556,116$1.21B$1.11B4.62%-$104.24M
Ascendis Pharma A/SADR(ASND)5,259,9095,185,696-74,213$1.05B$1.11B4.61%+$60.08M
Apple Inc.(AAPL)3,334,5453,274,318-60,227$849.08M$890.16M3.71%+$41.08M
Microsoft Corporation(MSFT)1,705,2361,621,219-84,017$883.23M$784.05M3.27%-$99.17M
Alphabet Inc.CL A(GOOG)2,244,6502,178,478-66,172$545.67M$681.86M2.84%+$136.19M
Comfort Systems USA, Inc.(FIX)833,195668,835-164,360$687.54M$624.22M2.60%-$63.32M
Amazon.com, Inc.(AMZN)2,541,7292,330,770-210,959$558.09M$537.99M2.24%-$20.10M
Axon Enterprise, Inc.(AXON)729,152831,177+102,025$523.27M$472.05M1.97%-$51.22M
FTAI Aviation Ltd.SHS(FTAI)2,130,2412,350,625+220,384$355.45M$462.72M1.93%+$107.27M
Howmet Aerospace Inc.(HWM)2,007,4532,219,125+211,672$393.92M$454.96M1.90%+$61.04M
Meta Platforms, Inc.CL A(META)767,657655,283-112,374$563.75M$432.55M1.80%-$131.21M
Broadcom Inc.(AVGO)1,166,3621,112,318-54,044$384.79M$384.97M1.60%+$178.6K
Vertiv Holdings CoCL A(VRT)2,247,2182,277,716+30,498$339.02M$369.01M1.54%+$30.00M
Eli Lilly and Company(LLY)277,005277,549+544$211.35M$298.28M1.24%+$86.92M
Tapestry, Inc.(TPR)2,450,6712,098,104-352,567$277.46M$268.07M1.12%-$9.39M
Revolution Medicines, Inc.(RVMD)2,513,9672,845,013+331,046$117.40M$226.61M0.94%+$109.20M
ServiceNow, Inc.(NOW)260,0021,476,803+1,216,801$239.27M$226.23M0.94%-$13.04M
LPL Financial Holdings Inc.(LPLA)575,462625,562+50,100$191.45M$223.43M0.93%+$31.98M
Visa Inc.CL A(V)705,767603,926-101,841$240.93M$211.80M0.88%-$29.13M
Bank America Corp3,861,1033,823,609-37,494$199.19M$210.30M0.88%+$11.10M
Tesla, Inc.(TSLA)404,220461,675+57,455$179.76M$207.62M0.86%+$27.86M
Masimo Corp1,419,2501,522,049+102,799$209.41M$197.96M0.82%-$11.45M
Ares Management CorporationCL A(ARES)1,027,5891,151,200+123,611$164.30M$186.07M0.78%+$21.77M
Ametek Inc358,660900,216+541,556$67.43M$184.82M0.77%+$117.40M
Rocket Lab Corporation(RKLB)2,437,8202,592,443+154,623$116.80M$180.85M0.75%+$64.05M
Semtech Corporation(SMTC)3,380,3732,448,612-931,761$241.53M$180.44M0.75%-$61.09M
HealthEquity, Inc.(HQY)1,716,6581,952,452+235,794$162.69M$178.86M0.75%+$16.18M
Fifth Third Bancorp(FITB)1,619,9483,746,926+2,126,978$72.17M$175.39M0.73%+$103.22M
AutoZone, Inc.(AZO)45,77051,122+5,352$196.36M$173.38M0.72%-$22.98M
Marvell Technology, Inc.(MRVL)2,611,9581,947,807-664,151$219.59M$165.52M0.69%-$54.06M
Natera, Inc.(NTRA)575,802714,692+138,890$92.69M$163.73M0.68%+$71.04M
Vaxcyte, Inc.(PCVX)3,732,7153,539,717-192,998$134.45M$163.32M0.68%+$28.87M
Casella Waste Systems, Inc.CL A(CWST)1,647,9071,665,226+17,319$156.35M$163.09M0.68%+$6.74M
Netflix, Inc.(NFLX)230,6481,597,547+1,366,899$276.53M$149.79M0.62%-$126.74M
Dynatrace, Inc.(DT)3,345,7803,356,708+10,928$162.10M$145.48M0.61%-$16.62M
Snowflake Inc.(SNOW)574,955649,105+74,150$129.68M$142.39M0.59%+$12.71M
HubSpot, Inc.(HUBS)134,175352,154+217,979$62.77M$141.32M0.59%+$78.55M
Samsara Inc.CL A(IOT)3,801,7873,953,970+152,183$141.62M$140.17M0.58%-$1.45M
ABIVAX Société AnonymeADS(ABVX)01,009,966+1,009,966$0$136.20M0.57%+$136.20M
Rhythm Pharmaceuticals, Inc.(RYTM)1,069,0041,267,158+198,154$107.96M$135.64M0.57%+$27.68M
Taiwan Semiconductor Manufacturing Company LimitedADS(TSM)467,398446,195-21,203$130.54M$135.59M0.56%+$5.05M
MKS Inc.(MKSI)323,364839,773+516,409$40.02M$134.20M0.56%+$94.17M
Legend Biotech CorporationADS(LEGN)6,094,4866,164,677+70,191$198.74M$134.02M0.56%-$64.72M
Commvault Systems, Inc.(CVLT)786,1751,057,077+270,902$148.41M$132.52M0.55%-$15.90M
GeneDx Holdings Corp.CL A(WGS)544,0941,018,261+474,167$58.62M$132.44M0.55%+$73.81M
APi Group Corporation(APG)03,453,355+3,453,355$0$132.13M0.55%+$132.13M
Atlassian CorporationCL A322,438812,215+489,777$51.49M$131.69M0.55%+$80.20M
Adma Biologics Inc5,106,8026,992,907+1,886,105$74.87M$127.55M0.53%+$52.68M
Regal Rexnord Corporation(RRX)1,221,730893,100-328,630$175.24M$125.32M0.52%-$49.93M
Royal Caribbean Group
COM
336,512448,653+112,141$108.89M$125.14M0.52%+$16.25M
Coherent Corp.(COHR)1,472,963665,123-807,840$158.67M$122.76M0.51%-$35.91M
Roku, Inc.CL A(ROKU)1,102,4881,112,478+9,990$110.39M$120.69M0.50%+$10.30M
MSCI Inc.(MSCI)175,347207,792+32,445$99.49M$119.22M0.50%+$19.72M
Primoris Services Corporation(PRIM)947,308952,196+4,888$130.09M$118.21M0.49%-$11.89M
GE Vernova Inc.(GEV)265,736177,934-87,802$163.40M$116.29M0.48%-$47.11M
Quanta Svcs Inc245,506273,528+28,022$101.74M$115.45M0.48%+$13.70M
Palomar Holdings, Inc.(PLMR)738,528840,226+101,698$86.22M$113.23M0.47%+$27.01M
Live Nation Entertainment, Inc.(LYV)646,370775,234+128,864$105.62M$110.47M0.46%+$4.85M
Insulet Corporation(PODD)201,387386,468+185,081$62.17M$109.85M0.46%+$47.68M
Dutch Bros Inc.CL A(BROS)01,779,616+1,779,616$0$108.95M0.45%+$108.95M
Cencora Inc325,660319,215-6,445$101.78M$107.81M0.45%+$6.04M
Topbuild Corp225,029255,451+30,422$87.95M$106.57M0.44%+$18.62M
The Descartes Systems Group Inc.(DSGX)1,001,3311,193,869+192,538$94.36M$104.65M0.44%+$10.30M
Heico Corp NewCL A409,498412,041+2,543$104.05M$104.01M0.43%-$37.8K
Hilton Worldwide Holdings Inc.(HLT)233,718357,721+124,003$60.64M$102.76M0.43%+$42.12M
Cloudflare, Inc.CL A(NET)480,850519,475+38,625$103.19M$102.41M0.43%-$771.2K
ITT Inc.(ITT)568,027587,446+19,419$101.54M$101.93M0.42%+$387.2K
Everpure, Inc.CL A(P)1,751,5581,520,219-231,339$146.80M$101.87M0.42%-$44.93M
IDEXX Laboratories, Inc.(IDXX)94,129147,447+53,318$60.14M$99.75M0.42%+$39.61M
Bloom Energy CorpCL A1,675,2821,145,296-529,986$141.68M$99.51M0.41%-$42.16M
XPO, Inc.(XPO)694,714724,214+29,500$89.81M$98.43M0.41%+$8.62M
East West Bancorp, Inc.(EWBC)589,535874,152+284,617$62.76M$98.25M0.41%+$35.49M
DoorDash, Inc.CL A(DASH)393,628425,080+31,452$107.06M$96.27M0.40%-$10.79M
AbbVie Inc.(ABBV)7,928419,784+411,856$1.84M$95.92M0.40%+$94.08M
DexCom, Inc.(DXCM)2,312,2101,439,689-872,521$155.59M$95.55M0.40%-$60.04M
Alkami Technology, Inc.(ALKT)3,095,0584,118,355+1,023,297$76.88M$95.01M0.40%+$18.13M
Nextpower IncCL A1,398,0571,090,300-307,757$103.44M$94.98M0.40%-$8.47M
Kratos Defense & Security Solutions, Inc.(KTOS)1,005,8161,245,587+239,771$91.90M$94.55M0.39%+$2.65M
SharkNinja, Inc.(SN)1,402,297840,060-562,237$144.65M$94.00M0.39%-$50.64M
Oracle Corporation(ORCL)600,197474,397-125,800$168.80M$92.46M0.39%-$76.33M
Rockwell Automation, Inc.(ROK)204,335233,795+29,460$71.42M$90.96M0.38%+$19.54M
Houlihan Lokey, Inc.CL A(HLI)406,306520,002+113,696$83.42M$90.58M0.38%+$7.16M
C.H. Robinson Worldwide, Inc.(CHRW)550,825556,472+5,647$72.93M$89.46M0.37%+$16.53M
Option Care Health, Inc.(OPCH)2,757,8582,765,305+7,447$76.56M$88.10M0.37%+$11.54M
Burlington Stores, Inc.(BURL)205,895302,307+96,412$52.40M$87.32M0.36%+$34.92M
TechnipFMC plc(FTI)1,480,1101,952,427+472,317$58.39M$87.00M0.36%+$28.61M
O'Reilly Automotive, Inc.(ORLY)817,026952,702+135,676$88.08M$86.90M0.36%-$1.19M
Imax Corp1,622,6252,346,486+723,861$53.14M$86.73M0.36%+$33.59M
FabrinetSHS(FN)163,002190,170+27,168$59.43M$86.58M0.36%+$27.15M
Vistra Corp.(VST)492,560533,945+41,385$96.50M$86.14M0.36%-$10.36M
FirstCash Holdings, Inc.(FCFS)422,455537,734+115,279$66.93M$85.70M0.36%+$18.78M
Globe Life Inc430,642608,813+178,171$61.57M$85.15M0.35%+$23.58M
Permian Resources CorporationCL A(PR)3,357,7165,951,186+2,593,470$42.98M$83.50M0.35%+$40.52M
KeyCorp(KEY)4,480,2144,040,297-439,917$83.74M$83.39M0.35%-$343.5K
Palo Alto Networks, Inc.(PANW)370,359448,460+78,101$75.41M$82.61M0.34%+$7.19M
DraftKings Inc.CL A(DKNG)2,080,4382,383,054+302,616$77.81M$82.12M0.34%+$4.31M
Lincoln Electric Holdings, Inc.(LECO)282,963337,725+54,762$66.73M$80.93M0.34%+$14.20M
Procore Technologies, Inc.(PCOR)1,540,2651,105,325-434,940$112.32M$80.40M0.33%-$31.91M
TransUnion(TRU)1,180,154933,553-246,601$98.87M$80.05M0.33%-$18.82M
Birkenstock Holding plc(BIRK)2,254,4931,954,801-299,692$102.02M$79.95M0.33%-$22.06M
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WESTFIELD CAPITAL MANAGEMENT CO LP — 13F Holdings — Q4 2025 | TickerTrail