Westfield Capital Management Company

Latest statistics and disclosures from Westfield Capital Management's latest quarterly 13F-HR filing:

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Positions held by Westfield Capital Management Company consolidated in one spreadsheet with up to 7 years of data

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Portfolio Holdings for Westfield Capital Management

Westfield Capital Management holds 241 positions in its portfolio as reported in the December 2025 quarterly 13F filing

Company (Ticker) Portfolio Weight Valued At Change in Shares Share Count Share Price
NVIDIA Corporation (NVDA) 4.6 $1.1B -8% 6.0M 186.50
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Ascendis Pharma A/s Sponsored Adr (ASND) 4.6 $1.1B 5.2M 213.24
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Apple (AAPL) 3.7 $890M 3.3M 271.86
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Microsoft Corporation (MSFT) 3.3 $784M -4% 1.6M 483.62
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Alphabet Cap Stk Cl A (GOOGL) 2.8 $682M -2% 2.2M 313.00
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Comfort Systems USA (FIX) 2.6 $624M -19% 669k 933.29
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Amazon (AMZN) 2.2 $538M -8% 2.3M 230.82
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Axon Enterprise (AXON) 2.0 $472M +13% 831k 567.93
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Ftai Aviation SHS (FTAI) 1.9 $463M +10% 2.4M 196.85
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Howmet Aerospace (HWM) 1.9 $455M +10% 2.2M 205.02
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Meta Platforms Cl A (META) 1.8 $433M -14% 655k 660.09
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Broadcom (AVGO) 1.6 $385M -4% 1.1M 346.10
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Vertiv Holdings Com Cl A (VRT) 1.5 $369M 2.3M 162.01
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Eli Lilly & Co. (LLY) 1.2 $298M 278k 1074.68
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Tapestry (TPR) 1.1 $268M -14% 2.1M 127.77
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Revolution Medicines (RVMD) 0.9 $227M +13% 2.8M 79.65
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Servicenow (NOW) 0.9 $226M +467% 1.5M 153.19
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Lpl Financial Holdings (LPLA) 0.9 $223M +8% 626k 357.17
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Visa Com Cl A (V) 0.9 $212M -14% 604k 350.71
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Bank of America Corporation (BAC) 0.9 $210M 3.8M 55.00
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Tesla Motors (TSLA) 0.9 $208M +14% 462k 449.72
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Masimo Corporation (MASI) 0.8 $198M +7% 1.5M 130.06
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Ares Management Corporation Cl A Com Stk (ARES) 0.8 $186M +12% 1.2M 161.63
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Ametek (AME) 0.8 $185M +150% 900k 205.31
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Rocket Lab Corp (RKLB) 0.8 $181M +6% 2.6M 69.76
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Semtech Corporation (SMTC) 0.8 $180M -27% 2.4M 73.69
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Healthequity (HQY) 0.7 $179M +13% 2.0M 91.61
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Fifth Third Ban (FITB) 0.7 $175M +131% 3.7M 46.81
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AutoZone (AZO) 0.7 $173M +11% 51k 3391.48
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Marvell Technology (MRVL) 0.7 $166M -25% 1.9M 84.98
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Natera (NTRA) 0.7 $164M +24% 715k 229.09
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Vaxcyte (PCVX) 0.7 $163M -5% 3.5M 46.14
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Casella Waste Sys Cl A (CWST) 0.7 $163M 1.7M 97.94
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Netflix (NFLX) 0.6 $150M +592% 1.6M 93.76
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Dynatrace Com New (DT) 0.6 $146M 3.4M 43.34
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Snowflake Com Shs (SNOW) 0.6 $142M +12% 649k 219.36
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Hubspot (HUBS) 0.6 $141M +162% 352k 401.30
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Samsara Com Cl A (IOT) 0.6 $140M +4% 4.0M 35.45
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Abivax Sa Sponsored Ads (ABVX) 0.6 $136M NEW 1.0M 134.85
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Rhythm Pharmaceuticals (RYTM) 0.6 $136M +18% 1.3M 107.04
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Taiwan Semiconductor Mfg Sponsored Ads (TSM) 0.6 $136M -4% 446k 303.89
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MKS Instruments (MKSI) 0.6 $134M +159% 840k 159.80
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Legend Biotech Corp Sponsored Ads (LEGN) 0.6 $134M 6.2M 21.74
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CommVault Systems (CVLT) 0.6 $133M +34% 1.1M 125.36
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Genedx Holdings Corp Com Cl A (WGS) 0.6 $132M +87% 1.0M 130.06
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Api Group Corp Com Stk (APG) 0.6 $132M NEW 3.5M 38.26
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Atlassian Corporation Cl A (TEAM) 0.5 $132M +151% 812k 162.14
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Adma Biologics (ADMA) 0.5 $128M +36% 7.0M 18.24
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Regal-beloit Corporation (RRX) 0.5 $125M -26% 893k 140.32
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Royal Caribbean Cruises (RCL) 0.5 $125M +33% 449k 278.92
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Coherent Corp (COHR) 0.5 $123M -54% 665k 184.57
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Roku Com Cl A (ROKU) 0.5 $121M 1.1M 108.49
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Msci (MSCI) 0.5 $119M +18% 208k 573.73
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Primoris Services (PRIM) 0.5 $118M 952k 124.14
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Ge Vernova (GEV) 0.5 $116M -33% 178k 653.57
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Quanta Services (PWR) 0.5 $115M +11% 274k 422.06
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Palomar Hldgs (PLMR) 0.5 $113M +13% 840k 134.76
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Live Nation Entertainment (LYV) 0.5 $111M +19% 775k 142.50
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Insulet Corporation (PODD) 0.5 $110M +91% 387k 284.24
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Dutch Bros Cl A (BROS) 0.5 $109M NEW 1.8M 61.22
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AmerisourceBergen (COR) 0.4 $108M 319k 337.75
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Topbuild (BLD) 0.4 $107M +13% 256k 417.19
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Descartes Sys Grp (DSGX) 0.4 $105M +19% 1.2M 87.66
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Heico Corp Cl A (HEI.A) 0.4 $104M 412k 252.43
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Hilton Worldwide Holdings (HLT) 0.4 $103M +53% 358k 287.25
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Cloudflare Cl A Com (NET) 0.4 $102M +8% 520k 197.15
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Itt (ITT) 0.4 $102M +3% 587k 173.51
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Pure Storage Cl A (PSTG) 0.4 $102M -13% 1.5M 67.01
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IDEXX Laboratories (IDXX) 0.4 $100M +56% 147k 676.53
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Bloom Energy Corp Com Cl A (BE) 0.4 $100M -31% 1.1M 86.89
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Xpo Logistics Inc equity (XPO) 0.4 $98M +4% 724k 135.91
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East West Ban (EWBC) 0.4 $98M +48% 874k 112.39
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Doordash Cl A (DASH) 0.4 $96M +7% 425k 226.48
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Abbvie (ABBV) 0.4 $96M +5194% 420k 228.49
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Dex (DXCM) 0.4 $96M -37% 1.4M 66.37
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Alkami Technology (ALKT) 0.4 $95M +33% 4.1M 23.07
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Nextpower Class A Com (NXT) 0.4 $95M -22% 1.1M 87.11
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Kratos Defense & Sec Solutio Com New (KTOS) 0.4 $95M +23% 1.2M 75.91
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Sharkninja Com Shs (SN) 0.4 $94M -40% 840k 111.90
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Oracle Corporation (ORCL) 0.4 $93M -20% 474k 194.91
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Rockwell Automation (ROK) 0.4 $91M +14% 234k 389.07
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Houlihan Lokey Cl A (HLI) 0.4 $91M +27% 520k 174.19
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C H Robinson Worldwide Com New (CHRW) 0.4 $90M 557k 160.76
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Option Care Health Com New (OPCH) 0.4 $88M 2.8M 31.86
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Burlington Stores (BURL) 0.4 $87M +46% 302k 288.85
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Technipfmc (FTI) 0.4 $87M +31% 2.0M 44.56
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O'reilly Automotive (ORLY) 0.4 $87M +16% 953k 91.21
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Imax Corp Cad (IMAX) 0.4 $87M +44% 2.3M 36.96
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Fabrinet SHS (FN) 0.4 $87M +16% 190k 455.28
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Vistra Energy (VST) 0.4 $86M +8% 534k 161.33
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Firstcash Holdings (FCFS) 0.4 $86M +27% 538k 159.38
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Globe Life (GL) 0.4 $85M +41% 609k 139.86
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Permian Resources Corp Class A Com (PR) 0.3 $84M +77% 6.0M 14.03
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Key (KEY) 0.3 $83M -9% 4.0M 20.64
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Palo Alto Networks (PANW) 0.3 $83M +21% 449k 184.20
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Draftkings Com Cl A (DKNG) 0.3 $82M +14% 2.4M 34.46
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Lincoln Electric Holdings (LECO) 0.3 $81M +19% 338k 239.64
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Procore Technologies (PCOR) 0.3 $80M -28% 1.1M 72.74
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Transunion (TRU) 0.3 $80M -20% 934k 85.75
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Birkenstock Holding Com Shs (BIRK) 0.3 $80M -13% 2.0M 40.90
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Wintrust Financial Corporation (WTFC) 0.3 $78M +22% 560k 139.82
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Onto Innovation (ONTO) 0.3 $76M 483k 157.86
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UnitedHealth (UNH) 0.3 $76M -4% 230k 330.11
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Fair Isaac Corporation (FICO) 0.3 $75M +37% 45k 1690.61
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Insmed Com Par $.01 (INSM) 0.3 $75M -11% 433k 174.04
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Braze Com Cl A (BRZE) 0.3 $75M 2.2M 34.29
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Jabil Circuit (JBL) 0.3 $75M +23% 328k 228.02
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Saia (SAIA) 0.3 $75M 229k 326.52
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Danaher Corporation (DHR) 0.3 $74M +6390% 322k 228.92
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Applied Industrial Technologies (AIT) 0.3 $73M +21% 285k 256.77
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Vulcan Materials Company (VMC) 0.3 $73M +7% 254k 285.22
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F5 Networks (FFIV) 0.3 $72M +1634% 281k 255.26
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Red Rock Resorts Cl A (RRR) 0.3 $72M 1.2M 61.95
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Silicon Laboratories (SLAB) 0.3 $72M +59% 547k 130.70
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IDEX Corporation (IEX) 0.3 $72M 402k 177.94
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Celsius Hldgs Com New (CELH) 0.3 $71M NEW 1.5M 45.74
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Wynn Resorts (WYNN) 0.3 $70M 582k 120.33
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Kkr & Co (KKR) 0.3 $70M -18% 547k 127.48
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Legence Corp Cl A (LGN) 0.3 $69M NEW 1.6M 43.04
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Garmin SHS (GRMN) 0.3 $68M NEW 336k 202.85
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Credo Technology Group Holdi Ordinary Shares (CRDO) 0.3 $68M 471k 143.89
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Arthur J. Gallagher & Co. (AJG) 0.3 $67M -3% 260k 258.79
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Mongodb Cl A (MDB) 0.3 $67M -12% 160k 419.69
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Blue Owl Capital Com Cl A (OWL) 0.3 $66M +4% 4.4M 14.94
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Adaptive Biotechnologies Cor (ADPT) 0.3 $66M NEW 4.1M 16.24
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Genius Sports Shares Cl A (GENI) 0.3 $66M 6.0M 11.02
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Affirm Hldgs Com Cl A (AFRM) 0.3 $63M +21% 852k 74.43
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Zscaler Incorporated (ZS) 0.3 $63M NEW 281k 224.92
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J.B. Hunt Transport Services (JBHT) 0.3 $62M +7% 318k 194.34
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CSX Corporation (CSX) 0.3 $62M +7% 1.7M 36.25
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Karman Hldgs Common Stock (KRMN) 0.3 $61M -41% 837k 73.17
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Calix (CALX) 0.3 $61M +67% 1.1M 52.93
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Primerica (PRI) 0.3 $61M -8% 235k 258.36
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Moody's Corporation (MCO) 0.3 $60M NEW 118k 510.85
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Packaging Corporation of America (PKG) 0.2 $59M NEW 285k 206.23
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Bio-techne Corporation (TECH) 0.2 $59M NEW 994k 58.81
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Irhythm Technologies (IRTC) 0.2 $58M 325k 177.44
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Clean Harbors (CLH) 0.2 $58M 246k 234.48
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Synopsys (SNPS) 0.2 $57M -3% 122k 469.72
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Dorman Products (DORM) 0.2 $57M NEW 462k 123.19
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Vita Coco Co Inc/the (COCO) 0.2 $57M 1.1M 53.01
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Guardant Health (GH) 0.2 $55M NEW 539k 102.14
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Xenon Pharmaceuticals (XENE) 0.2 $55M 1.2M 44.82
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Waste Connections (WCN) 0.2 $55M +8% 313k 175.36
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Advanced Micro Devices (AMD) 0.2 $54M NEW 251k 214.16
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Diamondback Energy (FANG) 0.2 $53M +10% 355k 150.33
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Parker-Hannifin Corporation (PH) 0.2 $51M +706% 58k 878.96
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Stepstone Group Com Cl A (STEP) 0.2 $51M 787k 64.17
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Bio Rad Labs Cl A (BIO) 0.2 $50M +6% 165k 302.99
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Ionq Inc Pipe (IONQ) 0.2 $50M +203% 1.1M 44.87
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Lattice Semiconductor (LSCC) 0.2 $50M -2% 678k 73.58
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F.N.B. Corporation (FNB) 0.2 $50M -2% 2.9M 17.10
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Avient Corp (AVNT) 0.2 $49M 1.6M 31.24
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Builders FirstSource (BLDR) 0.2 $49M -22% 476k 102.89
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Hamilton Lane Cl A (HLNE) 0.2 $49M NEW 364k 134.31
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salesforce (CRM) 0.2 $47M NEW 179k 264.91
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Talen Energy Corp (TLN) 0.2 $47M 124k 374.84
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Trane Technologies SHS (TT) 0.2 $46M +642% 118k 389.20
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Toast Cl A (TOST) 0.2 $45M +22% 1.3M 35.51
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Ryan Specialty Holdings Cl A (RYAN) 0.2 $42M -36% 814k 51.63
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M/a (MTSI) 0.2 $40M -47% 231k 171.28
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Niq Global Intelligence Ordinary Shares (NIQ) 0.2 $39M -9% 2.4M 16.49
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RadNet (RDNT) 0.2 $38M 532k 71.35
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Roblox Corp Cl A (RBLX) 0.2 $37M -61% 462k 81.03
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Alnylam Pharmaceuticals (ALNY) 0.2 $37M +6% 93k 397.65
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Targa Res Corp (TRGP) 0.2 $37M +8% 199k 184.50
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Robinhood Mkts Com Cl A (HOOD) 0.1 $35M +8% 313k 113.10
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Avidity Biosciences Ord (RNA) 0.1 $34M NEW 471k 72.13
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Rambus (RMBS) 0.1 $33M -25% 362k 91.89
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Astera Labs (ALAB) 0.1 $33M 195k 166.36
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Spx Corp (SPXC) 0.1 $28M -2% 142k 200.06
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Palantir Technologies Cl A (PLTR) 0.1 $28M -74% 155k 177.75
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Applied Digital Corp Com New (APLD) 0.1 $25M NEW 1.0M 24.52
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FormFactor (FORM) 0.1 $25M -56% 450k 55.78
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TransDigm Group Incorporated (TDG) 0.1 $22M -92% 16k 1329.81
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Bicycle Therapeutics Sponsored Ads (BCYC) 0.1 $21M +2% 3.0M 7.08
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Rigetti Computing Common Stock (RGTI) 0.1 $21M NEW 936k 22.15
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Core Scientific (CORZ) 0.1 $20M -30% 1.4M 14.56
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Alphabet Cap Stk Cl C (GOOG) 0.1 $14M +12% 46k 313.80
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Mueller Industries (MLI) 0.1 $14M -2% 125k 114.80
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Williams Companies (WMB) 0.1 $14M +14% 231k 60.11
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Pattern Group Com Ser A (PTRN) 0.1 $14M +4% 1.2M 11.54
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Ishares Tr Core S&p Us Gwt (IUSG) 0.0 $11M NEW 67k 167.94
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Coca-Cola Company (KO) 0.0 $9.3M -2% 133k 69.91
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Sumitomo Mitsui Finl Group I Sponsored Adr (SMFG) 0.0 $8.8M 454k 19.33
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Wells Fargo & Company (WFC) 0.0 $8.1M 87k 93.20
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Mitsubishi Ufj Finl Group In Sponsored Ads (MUFG) 0.0 $8.1M 511k 15.86
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Cintas Corporation (CTAS) 0.0 $7.9M -2% 42k 188.07
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Thermo Fisher Scientific (TMO) 0.0 $7.9M 14k 579.45
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Wal-Mart Stores (WMT) 0.0 $7.9M +9% 71k 111.41
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Cummins (CMI) 0.0 $7.8M NEW 15k 510.45
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TJX Companies (TJX) 0.0 $7.4M -3% 48k 153.61
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Ciena Corp Com New (CIEN) 0.0 $7.4M 32k 233.87
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Home Depot (HD) 0.0 $7.0M +238% 20k 344.10
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Johnson & Johnson (JNJ) 0.0 $6.9M NEW 33k 206.95
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First Ctzns Bancshares Inc D Cl A (FCNCA) 0.0 $6.8M 3.2k 2146.18
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Nextera Energy (NEE) 0.0 $6.7M +19% 84k 80.28
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Raymond James Financial (RJF) 0.0 $6.4M 40k 160.59
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Banco Bilbao Vizcaya Argenta Sponsored Adr (BBVA) 0.0 $6.2M NEW 267k 23.31
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Ishares Tr Rus 1000 Grw Etf (IWF) 0.0 $6.2M NEW 13k 473.31
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Goldman Sachs (GS) 0.0 $6.2M 7.0k 879.00
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M&T Bank Corporation (MTB) 0.0 $6.0M -2% 30k 201.48
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Rollins (ROL) 0.0 $6.0M 99k 60.02
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Cme (CME) 0.0 $5.9M +15% 22k 273.08
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Medtronic SHS (MDT) 0.0 $5.8M -3% 60k 96.06
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Merck & Co (MRK) 0.0 $5.6M NEW 54k 105.26
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McKesson Corporation (MCK) 0.0 $5.6M 6.8k 820.29
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McDonald's Corporation (MCD) 0.0 $5.4M NEW 18k 305.63
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Hershey Company (HSY) 0.0 $5.3M 29k 181.98
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Citigroup Com New (C) 0.0 $5.1M NEW 44k 116.69
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Gilead Sciences (GILD) 0.0 $5.1M NEW 42k 122.74
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Expedia Group Com New (EXPE) 0.0 $4.7M 17k 283.31
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Southern Copper Corporation (SCCO) 0.0 $4.7M NEW 33k 143.47
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SLB Com Stk (SLB) 0.0 $4.6M NEW 121k 38.38
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Halliburton Company (HAL) 0.0 $3.9M NEW 137k 28.26
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Cardinal Health (CAH) 0.0 $3.7M -47% 18k 205.50
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Gartner (IT) 0.0 $3.6M 14k 252.28
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Pfizer (PFE) 0.0 $3.4M NEW 138k 24.90
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Dominion Resources (D) 0.0 $2.7M NEW 46k 58.59
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Ishares Tr Rus Md Cp Gr Etf (IWP) 0.0 $2.5M +1168% 18k 136.94
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Ranpak Holdings Corp Com Cl A (PACK) 0.0 $2.2M 407k 5.41
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Monday SHS (MNDY) 0.0 $2.1M -97% 14k 147.56
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Berkshire Hathaway Inc Del Cl B New (BRK.B) 0.0 $1.2M 2.4k 502.65
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Booking Holdings (BKNG) 0.0 $1.1M 210.00 5355.33
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Ishares Silver Tr Ishares (SLV) 0.0 $1.1M 17k 64.42
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International Business Machines (IBM) 0.0 $983k 3.3k 296.21
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Applovin Corp Com Cl A (APP) 0.0 $865k 1.3k 673.83
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Boston Scientific Corporation (BSX) 0.0 $827k +14% 8.7k 95.35
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Plexus (PLXS) 0.0 $764k 5.2k 147.00
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Comerica Incorporated 0.0 $744k 8.6k 86.93
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MercadoLibre (MELI) 0.0 $631k 313.00 2014.26
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EQT Corporation (EQT) 0.0 $570k 11k 53.60
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Vertex Pharmaceuticals Incorporated (VRTX) 0.0 $513k NEW 1.1k 453.36
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Churchill Downs (CHDN) 0.0 $493k NEW 4.3k 113.78
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Icon SHS (ICLR) 0.0 $462k -99% 2.5k 182.20
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Pulmonx Corp (LUNG) 0.0 $409k NEW 185k 2.21
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Cidara Therapeutics Com New (CDTX) 0.0 $312k NEW 1.4k 220.89
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Ionis Pharmaceuticals (IONS) 0.0 $250k +2% 3.2k 79.11
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Applied Materials (AMAT) 0.0 $241k NEW 936.00 256.99
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Stag Industrial (STAG) 0.0 $238k -96% 6.5k 36.76
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Beam Therapeutics (BEAM) 0.0 $224k NEW 8.1k 27.72
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Past Filings by Westfield Capital Management

SEC 13F filings are viewable for Westfield Capital Management going back to 2010

View all past filings