WESTFIELD CAPITAL MANAGEMENT CO LP

Institutional InvestorSimilar funds →SEC EDGAR: CIK 1177719
Institutional-grade research for retail investors

13F Reported Value

$23.8B

Holdings

250

Latest Filing

2026-03-31

Filing Quarter

Q1 2026

Portfolio Overview

WESTFIELD CAPITAL MANAGEMENT CO LP disclosed 250 positions worth $23.8B in its Form 13F-HR for Q1 2026, led by $NVDA (NVIDIA CORP) at 4.6% of the equity portfolio, followed by $ASND and $FIX. During the quarter the fund opened 44 new positions and exited 36 — including a new stake in $LNG and a full exit from $CVLT. The portfolio is most concentrated in Technology (36.8% of disclosed assets). All figures are sourced directly from WESTFIELD CAPITAL MANAGEMENT CO LP’s Form 13F-HR filing with the SEC under CIK 1177719.

Sector Allocation

TechnologyIndustrialsHealthcareConsumer DiscretionaryFinancialsMaterials

AUM History

Top Equity Holdings by Value

Quarterly Activity — Q1 2026

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Top Holdings

AI Quality Scored

Unlock AI quality scores for every holding

32-signal composite ranking on each of WESTFIELD CAPITAL MANAGEMENT CO LP's 250 positions.

Showing top 10 of 250 holdings.

Sector Allocation

Technology

$8.8B

Industrials

$4.3B

Healthcare

$3.5B

Consumer Discretionary

$2.1B

Financials

$2.0B

Materials

$817.2M

Energy

$807.4M

Communication Services

$587.0M

Full Holdings — WESTFIELD CAPITAL MANAGEMENT CO LP (Q1 2026)

All 250 disclosed positions from the latest Form 13F-HR, with quarter-over-quarter share changes and 13F Pro quality scores. Sourced from SEC EDGAR.

#TickerCompanyValueWeightQoQQuality
1NVDA$NVDANVIDIA CORP$1.1B4.6%+6%90.2
2ASND$ASNDAscendis Pharma A/S$1.1B4.6%-7%41.5
3FIX$FIXCOMFORT SYSTEMS USA INC$856.2M3.6%-7%79.5
4AAPL$AAPLApple Inc.$795.2M3.3%-4%76.1
5FTAI$FTAIFTAI Aviation Ltd.$697.8M2.9%+21%
6MSFT$MSFTMICROSOFT CORP$610.6M2.6%+2%83.7
7GOOG$GOOGAlphabet Inc.$582.8M2.5%-7%80.2
8HWM$HWMHowmet Aerospace Inc.$527.7M2.2%+3%79.1
9VRT$VRTVertiv Holdings Co$481.5M2.0%-16%82.7
10AMZN$AMZNAMAZON COM INC$474.8M2.0%-2%74.6
11AXON$AXONAXON ENTERPRISE, INC.$451.9M1.9%+28%55.6
12AVGO$AVGOBroadcom Inc.$382.8M1.6%+11%86.4
13LLY$LLYELI LILLY & Co$335.3M1.4%+31%89.3
14TPR$TPRTAPESTRY, INC.$310.3M1.3%+5%76.4
15META$METAMeta Platforms, Inc.$301.4M1.3%-20%80.9
16LPLA$LPLALPL Financial Holdings Inc.$265.2M1.1%+41%61.8
17MKSI$MKSIMKS INC$240.6M1.0%+25%59.8
18INSM$INSMINSMED Inc$240.1M1.0%+240%29.4
19PCVX$PCVXVaxcyte, Inc.$211.9M0.9%+3%
20RKLB$RKLBRocket Lab Corp$203.7M0.8%+22%37.2
21NFLX$NFLXNETFLIX INC$189.4M0.8%+23%86.7
22APG$APGAPi Group Corp$187.8M0.8%+34%61.3
23PWR$PWRQUANTA SERVICES, INC.$182.2M0.8%+21%62.6
24GEV$GEVGE Vernova Inc.$174.0M0.7%+12%70.1
25ARES$ARESAres Management Corp$171.6M0.7%+37%70.8
26RYTM$RYTMRHYTHM PHARMACEUTICALS, INC.$167.8M0.7%+52%30.3
27TSM$TSMTAIWAN SEMICONDUCTOR MANUFACTURING CO LTD$166.8M0.7%+11%
28MRVL$MRVLMarvell Technology, Inc.$165.7M0.7%-14%77.3
29BE$BEBloom Energy Corp$161.4M0.7%+4%54.4
30IOT$IOTSamsara Inc.$160.8M0.7%+28%61.3
31AME$AMEAMETEK INC/$159.9M0.7%-17%74.2
32PR$PRPermian Resources Corp$159.5M0.7%+26%75.6
33DT$DTDynatrace, Inc.$155.7M0.7%+25%77.6
34RVMD$RVMDRevolution Medicines, Inc.$151.4M0.6%-45%
35NTRA$NTRANatera, Inc.$150.9M0.6%+6%46.4
36FN$FNFabrinet$148.6M0.6%+50%72.4
37ABVX$ABVXAbivax S.A.$147.3M0.6%+31%
38NOW$NOWServiceNow, Inc.$145.8M0.6%-6%76
39FTI$FTITechnipFMC plc$140.6M0.6%+4%
40RCL$RCLROYAL CARIBBEAN CRUISES LTD$139.2M0.6%+13%
41HLT$HLTHilton Worldwide Holdings Inc.$139.1M0.6%+28%73.1
42V$VVISA INC.$138.0M0.6%-24%83.5
43COR$CORCencora, Inc.$137.3M0.6%+37%59.6
44ITT$ITTITT INC.$134.0M0.6%+20%63.1
45CELH$CELHCelsius Holdings, Inc.$133.7M0.6%+144%63
46NXT$NXTNextpower Inc.$133.5M0.6%+2%74.8
47LNG$LNGCheniere Energy, Inc.$130.3M0.6%NEW48.4
48AS$ASAmer Sports, Inc.$129.6M0.5%NEW71
49RRX$RRXREGAL REXNORD CORP$127.7M0.5%-24%53.8
50MSCI$MSCIMSCI Inc.$126.0M0.5%+12%77.6
51GH$GHGuardant Health, Inc.$125.9M0.5%+153%36.1
52LYV$LYVLive Nation Entertainment, Inc.$123.6M0.5%+5%55
53TSLA$TSLATesla, Inc.$117.5M0.5%-32%50.1
54GL$GLGLOBE LIFE INC.$117.2M0.5%+38%66.6
55BROS$BROSDutch Bros Inc.$117.2M0.5%+30%65.9
56NET$NETCloudflare, Inc.$111.7M0.5%+4%52.6
57ROKU$ROKUROKU, INC$111.5M0.5%+6%60.5
58XPO$XPOXPO, Inc.$111.3M0.5%-21%55.3
59FITB$FITBFIFTH THIRD BANCORP$110.8M0.5%-36%
60EVERPURE INC$110.7M0.5%+23%
61KTOS$KTOSKRATOS DEFENSE & SECURITY SOLUTIONS, INC.$110.2M0.5%+25%48
62AIG$AIGAMERICAN INTERNATIONAL GROUP, INC.$109.8M0.5%NEW59.5
63SNOW$SNOWSnowflake Inc.$108.4M0.5%+11%49.6
64PRIM$PRIMPrimoris Services Corp$106.3M0.5%-22%62.3
65JLL$JLLJONES LANG LASALLE INC$105.8M0.4%NEW59.8
66LGN$LGNLegence Corp.$105.1M0.4%+15%
67LEGN$LEGNLegend Biotech Corp$104.3M0.4%-7%44.2
68KEY$KEYKEYCORP /NEW/$104.1M0.4%+29%70.4
69ROST$ROSTROSS STORES, INC.$102.2M0.4%NEW71.5
70PLMR$PLMRPalomar Holdings, Inc.$102.1M0.4%+2%77.5
71PANW$PANWPalo Alto Networks Inc$102.0M0.4%+42%66.5
72FANG$FANGDiamondback Energy, Inc.$99.6M0.4%+42%81.4
73PLTR$PLTRPalantir Technologies Inc.$98.7M0.4%+336%85.8
74SMTC$SMTCSEMTECH CORP$98.5M0.4%-48%54.5
75WWD$WWDWoodward, Inc.$97.4M0.4%NEW70.2
76ANET$ANETArista Networks, Inc.$95.8M0.4%NEW86
77AZO$AZOAUTOZONE INC$95.8M0.4%-45%66.5
78SN$SNSharkNinja, Inc.$95.8M0.4%+8%
79COHR$COHRCOHERENT CORP.$94.5M0.4%-40%64
80ALAB$ALABAstera Labs, Inc.$94.3M0.4%+340%77.7
81BRZE$BRZEBraze, Inc.$93.8M0.4%+82%44.8
82JBL$JBLJABIL INC$92.8M0.4%+6%51.9
83LECO$LECOLINCOLN ELECTRIC HOLDINGS INC$89.2M0.4%+6%67.5
84IMAX$IMAXIMAX CORP$88.9M0.4%-0%53.9
85WGS$WGSGeneDx Holdings Corp.$87.9M0.4%+34%38.6
86GRMN$GRMNGARMIN LTD$87.3M0.4%+12%
87CRDO$CRDOCredo Technology Group Holding Ltd$86.9M0.4%+97%
88FFIV$FFIVF5, INC.$86.4M0.4%+6%70
89EWBC$EWBCEAST WEST BANCORP INC$86.0M0.4%-8%
90LTH$LTHLife Time Group Holdings, Inc.$85.8M0.4%NEW67.8
91BIRK$BIRKBirkenstock Holding plc$83.8M0.3%+20%
92ORLY$ORLYO REILLY AUTOMOTIVE INC$82.0M0.3%-7%72.7
93MS$MSMORGAN STANLEY$81.7M0.3%NEW
94XENE$XENEXenon Pharmaceuticals Inc.$81.5M0.3%+14%12.9
95ALNY$ALNYALNYLAM PHARMACEUTICALS, INC.$81.2M0.3%+163%60.9
96FCFS$FCFSFirstCash Holdings, Inc.$81.2M0.3%-20%73.8
97IEX$IEXIDEX CORP /DE/$80.8M0.3%+6%60.6
98MTZ$MTZMASTEC INC$80.4M0.3%NEW59.7
99HLI$HLIHOULIHAN LOKEY, INC.$78.1M0.3%+5%67.3
100PLXS$PLXSPLEXUS CORP$77.9M0.3%+7294%41.8
101KRMN$KRMNKarman Holdings Inc.$77.2M0.3%+15%56.1
102AIT$AITAPPLIED INDUSTRIAL TECHNOLOGIES INC$76.7M0.3%+1%64.2
103TRGP$TRGPTarga Resources Corp.$76.5M0.3%+54%70
104CALX$CALXCALIX, INC$75.7M0.3%+35%46.8
105ADPT$ADPTAdaptive Biotechnologies Corp$75.5M0.3%+34%35.2
106WYNN$WYNNWYNN RESORTS LTD$75.1M0.3%+27%
107CLH$CLHCLEAN HARBORS INC$74.9M0.3%+6%56.3
108IDXX$IDXXIDEXX LABORATORIES INC /DE$74.7M0.3%-10%73.6
109VST$VSTVistra Corp.$74.4M0.3%-7%62.9
110ROK$ROKROCKWELL AUTOMATION, INC$74.0M0.3%-12%68.2
111GWRE$GWREGuidewire Software, Inc.$72.8M0.3%NEW66.2
112CHRW$CHRWC. H. ROBINSON WORLDWIDE, INC.$71.3M0.3%-23%59.8
113LOW$LOWLOWES COMPANIES INC$71.1M0.3%NEW63.5
114NAMS$NAMSNewAmsterdam Pharma Co N.V.$70.5M0.3%NEW
115CSX$CSXCSX CORP$68.1M0.3%-3%66.4
116ONTO$ONTOONTO INNOVATION INC.$67.0M0.3%-32%66.5
117DASH$DASHDoorDash, Inc.$66.7M0.3%+4%70.6
118RRR$RRRRed Rock Resorts, Inc.$65.5M0.3%+6%60.9
119CWST$CWSTCASELLA WASTE SYSTEMS INC$65.3M0.3%-51%48.6
120PKG$PKGPACKAGING CORP OF AMERICA$64.5M0.3%+7%70
121WTFC$WTFCWINTRUST FINANCIAL CORP$63.2M0.3%-19%34.1
122MCHP$MCHPMICROCHIP TECHNOLOGY INC$62.7M0.3%NEW40
123MASI$MASIMASIMO CORP$60.7M0.3%-78%47.1
124ZS$ZSZscaler, Inc.$60.0M0.3%+52%57.9
125HQY$HQYHEALTHEQUITY, INC.$59.6M0.3%-63%72.3
126DSGX$DSGXDESCARTES SYSTEMS GROUP INC$57.4M0.2%-33%
127PCOR$PCORPROCORE TECHNOLOGIES, INC.$57.1M0.2%-9%51.8
128AVNT$AVNTAVIENT CORP$57.0M0.2%-0%49.8
129HUBS$HUBSHUBSPOT INC$56.9M0.2%-34%58.1
130STEP$STEPStepStone Group Inc.$56.2M0.2%+50%47
131IBP$IBPInstalled Building Products, Inc.$55.2M0.2%NEW62.4
132COCO$COCOVita Coco Company, Inc.$55.2M0.2%+7%71.2
133SAIA$SAIASAIA INC$54.7M0.2%-32%57.3
134MCO$MCOMOODYS CORP /DE/$53.9M0.2%+4%81.3
135SNPS$SNPSSYNOPSYS INC$52.7M0.2%+9%63.1
136PH$PHParker-Hannifin Corp$52.4M0.2%+1%73.8
137LSCC$LSCCLATTICE SEMICONDUCTOR CORP$52.3M0.2%-17%39.2
138BLD$BLDQXO Insulation, LLC$52.2M0.2%-42%62
139BAC$BACBANK OF AMERICA CORP /DE/$52.0M0.2%-72%68.4
140GKOS$GKOSGLAUKOS Corp$51.9M0.2%NEW39.2
141KKR$KKRKKR & Co. Inc.$51.6M0.2%+2%49.8
142CDE$CDECoeur Mining, Inc.$51.4M0.2%NEW78.1
143CRM$CRMSalesforce, Inc.$50.8M0.2%+52%75.2
144MAR$MARMARRIOTT INTERNATIONAL INC /MD/$50.1M0.2%NEW65.9
145MDGL$MDGLMADRIGAL PHARMACEUTICALS, INC.$49.6M0.2%NEW25.4
146AFRM$AFRMAffirm Holdings, Inc.$49.5M0.2%+27%71.7
147NXPI$NXPINXP Semiconductors N.V.$48.8M0.2%NEW
148JBHT$JBHTHUNT J B TRANSPORT SERVICES INC$48.4M0.2%-28%56.5
149DORM$DORMDorman Products, Inc.$48.1M0.2%-0%63.1
150TOST$TOSTToast, Inc.$47.5M0.2%+41%69.5
151PL$PLPlanet Labs PBC$45.8M0.2%NEW42.2
152TECH$TECHBIO-TECHNE Corp$44.7M0.2%-14%59.6
153HOOD$HOODRobinhood Markets, Inc.$43.9M0.2%+103%75.8
154ENTG$ENTGENTEGRIS INC$43.6M0.2%NEW57.7
155RIOT$RIOTRiot Platforms, Inc.$43.3M0.2%NEW51.3
156FICO$FICOFAIR ISAAC CORP$42.6M0.2%-10%75.6
157TLN$TLNTalen Energy Corp$42.0M0.2%+6%66.5
158CPAY$CPAYCORPAY, INC.$41.6M0.2%NEW67.1
159MDB$MDBMongoDB, Inc.$40.4M0.2%+3%54.6
160IONQ$IONQIonQ, Inc.$39.6M0.2%+23%32.8
161HLNE$HLNEHamilton Lane INC$36.2M0.1%+0%75.4
162MU$MUMICRON TECHNOLOGY INC$33.9M0.1%NEW88.4
163FCX$FCXFREEPORT-MCMORAN INC$32.0M0.1%NEW73.1
164OPCH$OPCHOption Care Health, Inc.$31.8M0.1%-57%57.8
165LENDINGCLUB ISSUANCE TR SER$30.3M0.1%NEW
166SPXC$SPXCSPX Technologies, Inc.$29.8M0.1%+6%66
167RDNT$RDNTRadNet, Inc.$29.7M0.1%+0%51.4
168FAST$FASTFASTENAL CO$29.6M0.1%NEW73.5
169MTSI$MTSIMACOM Technology Solutions Holdings, Inc.$29.4M0.1%-43%70.6
170RGTI$RGTIRigetti Computing, Inc.$26.6M0.1%+103%8.1
171CAT$CATCATERPILLAR INC$22.9M0.1%NEW67.8
172CORZ$CORZCore Scientific, Inc./tx$22.1M0.1%+6%14
173UEC$UECURANIUM ENERGY CORP$21.2M0.1%NEW17.8
174DHR$DHRDANAHER CORP /DE/$20.9M0.1%-66%63.9
175ORKA$ORKAOruka Therapeutics, Inc.$15.4M0.1%NEW
176TDG$TDGTransDigm Group INC$15.0M0.1%-20%75.4
177PTRN$PTRNPattern Group Inc.$14.6M0.1%-1%
178GOOGL$GOOGLAlphabet Inc.$14.5M0.1%+10%80.2
179MLI$MLIMUELLER INDUSTRIES INC$14.0M0.1%+1%77.5
180WMB$WMBWILLIAMS COMPANIES, INC.$13.2M0.1%-22%72.8
181APLD$APLDApplied Digital Corp.$12.9M0.1%-48%35.4
182CIEN$CIENCIENA CORP$12.3M0.1%+0%70.7
183KO$KOCOCA COLA CO$10.2M0.0%+1%74
184SMFG$SMFGSUMITOMO MITSUI FINANCIAL GROUP, INC.$9.0M0.0%+1%
185WMT$WMTWalmart Inc.$8.9M0.0%+1%63.2
186JNJ$JNJJOHNSON & JOHNSON$8.8M0.0%+8%72.8
187MUFG$MUFGMITSUBISHI UFJ FINANCIAL GROUP INC$8.8M0.0%+1%
188CMI$CMICUMMINS INC$8.3M0.0%+1%58.9
189NEE$NEENEXTERA ENERGY INC$8.1M0.0%+4%71.7
190TJX$TJXTJX COMPANIES INC /DE/$7.8M0.0%+1%70.7
191WFC$WFCWELLS FARGO & COMPANY/MN$7.0M0.0%+1%
192ROL$ROLROLLINS INC$7.0M0.0%+31%73.2
193HD$HDHOME DEPOT, INC.$6.7M0.0%+0%69.2
194TMO$TMOTHERMO FISHER SCIENTIFIC INC.$6.6M0.0%-2%63.7
195TT$TTTrane Technologies plc$6.6M0.0%-87%
196MTB$MTBM&T BANK CORP$6.2M0.0%+0%64.1
197HSY$HSYHERSHEY CO$6.1M0.0%+1%59.4
198FCNCA$FCNCAFIRST CITIZENS BANCSHARES INC /DE/$6.0M0.0%+0%54.8
199AMGN$AMGNAMGEN INC$6.0M0.0%NEW79.5
200GS$GSGOLDMAN SACHS GROUP INC$6.0M0.0%+1%
201MCK$MCKMCKESSON CORP$6.0M0.0%+1%63.7
202BBVA$BBVABANCO BILBAO VIZCAYA ARGENTARIA, S.A.$5.8M0.0%+1%
203RJF$RJFRAYMOND JAMES FINANCIAL INC$5.8M0.0%+0%63.8
204MCD$MCDMCDONALDS CORP$5.6M0.0%+2%73.9
205MDT$MDTMedtronic plc$5.2M0.0%+1%
206MRK$MRKMerck & Co., Inc.$5.2M0.0%-20%70.9
207C$CCITIGROUP INC$5.0M0.0%+2%54.8
208HEI.A$HEI.AHEICO CORP$4.2M0.0%-95%79.2
209SCCO$SCCOSOUTHERN COPPER CORP/$4.2M0.0%-26%86.6
210EXPE$EXPEExpedia Group, Inc.$3.9M0.0%+1%65.7
211PFE$PFEPFIZER INC$3.8M0.0%-3%69
212GILD$GILDGILEAD SCIENCES, INC.$3.7M0.0%-36%77.8
213WSO$WSOWATSCO INC$3.6M0.0%NEW58.9
214PEP$PEPPEPSICO INC$3.5M0.0%NEW62.7
215D$DDOMINION ENERGY, INC$3.3M0.0%+17%74.9
216CAH$CAHCARDINAL HEALTH INC$2.8M0.0%-27%58.6
217ABBV$ABBVAbbVie Inc.$2.3M0.0%-97%59.3
218IT$ITGARTNER INC$2.3M0.0%+0%65.2
219ISRG$ISRGINTUITIVE SURGICAL INC$1.9M0.0%NEW81.4
220ISHARES TR$1.7M0.0%-69%
221DXCM$DXCMDEXCOM INC$1.7M0.0%-98%77.9
222PACK$PACKRanpak Holdings Corp.$1.5M0.0%+0%29
223RMBS$RMBSRAMBUS INC$1.2M0.0%-96%75.2
224VANGUARD INDEX FDS$1.1M0.0%NEW
225ISHARES TR$1.1M0.0%-55%
226AMD$AMDADVANCED MICRO DEVICES INC$1.0M0.0%-98%78.8
227MNDY$MNDYmonday.com Ltd.$924,0010.0%-4%
228GENI$GENIGenius Sports Ltd$917,6750.0%-97%
229IBM$IBMINTERNATIONAL BUSINESS MACHINES CORP$804,7350.0%+0%66.7
230UNH$UNHUNITEDHEALTH GROUP INC$748,7230.0%-99%66.8
231ISHARES TR$733,7310.0%-65%
232WCN$WCNWaste Connections, Inc.$725,4570.0%-99%
233EQT$EQTEQT Corp$677,1300.0%+0%83.3
234NVO$NVONOVO NORDISK A S$628,7190.0%NEW
235WAB$WABWESTINGHOUSE AIR BRAKE TECHNOLOGIES CORP$622,2760.0%NEW70.8
236APP$APPAppLovin Corp$501,4800.0%-2%86.8
237ISHARES TR$493,5360.0%-73%
238VRTX$VRTXVERTEX PHARMACEUTICALS INC / MA$385,8110.0%-24%76.6
239BSX$BSXBOSTON SCIENTIFIC CORP$374,3040.0%-31%79.9
240PODD$PODDINSULET CORP$352,8940.0%-100%70.4
241CNR$CNRCore Natural Resources, Inc.$351,8930.0%NEW51.8
242CCJ$CCJCAMECO CORP$337,7770.0%NEW
243AMAT$AMATAPPLIED MATERIALS INC /DE$319,9150.0%+0%74.8
244IONS$IONSIONIS PHARMACEUTICALS INC$262,9650.0%+11%37.1
245SRRK$SRRKScholar Rock Holding Corp$254,7470.0%NEW
246AVTX$AVTXAvalo Therapeutics, Inc.$233,4900.0%NEW4.6
247STAG$STAGSTAG Industrial, Inc.$233,2000.0%+0%67.8
248PRAX$PRAXPraxis Precision Medicines, Inc.$213,2900.0%NEW
249IMVT$IMVTImmunovant, Inc.$213,1520.0%NEW
250LUNG$LUNGPulmonx Corp$141,9000.0%-41%23.9

New Positions (44)

LNG$LNG Cheniere Energy, Inc.$130.3M
AS$AS Amer Sports, Inc.$129.6M
AIG$AIG AMERICAN INTERNATIONAL GROUP, INC.$109.8M
JLL$JLL JONES LANG LASALLE INC$105.8M
ROST$ROST ROSS STORES, INC.$102.2M
WWD$WWD Woodward, Inc.$97.4M
ANET$ANET Arista Networks, Inc.$95.8M
LTH$LTH Life Time Group Holdings, Inc.$85.8M
MS$MS MORGAN STANLEY$81.7M
MTZ$MTZ MASTEC INC$80.4M
GWRE$GWRE Guidewire Software, Inc.$72.8M
LOW$LOW LOWES COMPANIES INC$71.1M
NAMS$NAMS NewAmsterdam Pharma Co N.V.$70.5M
MCHP$MCHP MICROCHIP TECHNOLOGY INC$62.7M
IBP$IBP Installed Building Products, Inc.$55.2M

Exited Positions (36)

CVLT$CVLT COMMVAULT SYSTEMS INC
TEAM$TEAM Atlassian Corp
ADMA$ADMA ADMA BIOLOGICS, INC.
ALKT$ALKT ALKAMI TECHNOLOGY, INC.
ORCL$ORCL ORACLE CORP
BURL$BURL Burlington Stores, Inc.
DKNG$DKNG DraftKings Inc.
TRU$TRU TransUnion
VMC$VMC Vulcan Materials CO
SLAB$SLAB SILICON LABORATORIES INC.
AJG$AJG Arthur J. Gallagher & Co.
OBDC$OBDC Blue Owl Capital Corp
PRI$PRI Primerica, Inc.
IRTC$IRTC iRhythm Holdings, Inc.
BIO$BIO BIO-RAD LABORATORIES, INC.

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AI-Powered Hedge Fund Analysis: WESTFIELD CAPITAL MANAGEMENT CO LP

13F Pro is an AI hedge fund tracker and stock research platform. For WESTFIELD CAPITAL MANAGEMENT CO LP (SEC CIK: 1177719), the platform ingests every quarterly Form 13F filing and applies AI-powered analysis on top — 10 specialized AI analysts (value, growth, momentum, macro, activist, and more) debate the fund's top positions and publish AI-generated analysis with cited SEC sources.

Every holding in WESTFIELD CAPITAL MANAGEMENT CO LP's portfolio is scored on a 32-signal AI quality ranking (ROIC, FCF margin, revenue growth, institutional flow, earnings quality, shareholder dilution, and more). Track accumulation and distribution quarter over quarter, identify conviction positions, and see AI stock analysis for each position — alongside 8,700+ other institutional filers and 2,800+ AI-ranked companies.