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13F-HR filed by WESTFIELD CAPITAL MANAGEMENT CO LP

WESTFIELD CAPITAL MANAGEMENT CO LP filed this 13F-HR for the quarter ended 2024-12-31, filed 2025-02-11, with 239 holding rows worth $22,971,696,460.

Accession
0001085146-25-000986
Filed
2025-02-11
Accepted by EDGAR
acceptance time not in the bulk data set
Ingested
Source
SEC quarterly data set

Original filing

13F report for Q4 2024

A holdings report, 239 entries on the cover page, a total value of $22,971,696,460 stated on the cover page (in dollars after the unit check, H1), rows summing to $22,971,696,460 with VALUE read as dollars as filed, 13F file number 028-10220. The quarter's positions are built on this report. The resolved quarter.

The information table after summing rows of one CUSIP and put or call (H4), with the CUSIP and issuer name as filed. Values in dollars after the unit check (method).

Issuer as filedCUSIPClassAmountValueValue read asType
NVIDIA Corp67066G104COM7,399,837$993,724,126dollars as filed
Apple Inc037833100COM3,655,031$915,292,893dollars as filed
Microsoft Corp594918104COM1,872,811$789,389,723dollars as filed
ASCENDIS PHARMA A/S DKK 1.0 AD04351P101SPONSORED ADR5,528,239$761,072,627dollars as filed
Amazon.com, Inc023135106COM3,442,248$755,194,779dollars as filed
Alphabet Inc. Reg. Shares A02079K305COM3,475,412$657,895,494dollars as filed
META PLATFORMS INC CL A30303M102COM900,959$527,520,484dollars as filed
TRANSDIGM GROUP INC COM893641100Stock362,218$459,031,330dollars as filed
AXONENTERPRISEINC05464C101STOK714,870$424,861,647dollars as filed
VERTIV HOLDINGS CO COM CL A92537N108Stock3,720,010$422,630,284dollars as filed
COMFORT SYS USA INC COM199908104Stock885,127$375,346,956dollars as filed
FTAI AVIATION LTD SHSG3730V105Stock2,488,704$358,472,924dollars as filed
ServiceNow,Inc.81762P102COM315,043$333,982,996dollars as filed
Broadcom Inc.11135F101COM1,354,977$314,137,832dollars as filed
Visa Inc92826C839COM899,652$284,326,106dollars as filed
Tesla Motors, Inc88160R101COM660,107$266,577,643dollars as filed
TAPESTRY INC COM876030107Stock3,604,918$235,509,277dollars as filed
LPL FINL HLDGS INC COM50212V100Stock705,919$230,489,489dollars as filed
VAXCYTE INC COM92243G108Stock2,566,759$210,114,892dollars as filed
GE Vernova Inc.36828A101COM611,800$201,239,415dollars as filed
Salesforce.com, Inc79466L302COM597,103$199,629,403dollars as filed
LEGEND BIOTECH CORP52490G102SPONSORED ADS5,713,696$185,923,663dollars as filed
DEXCOM INC COM252131107Stock2,345,601$182,417,423dollars as filed
Progressive Corporation743315103COM748,166$179,268,157dollars as filed
Netflix, Inc64110L106COM200,346$178,572,743dollars as filed
REGAL REXNORD CORPORATION758750103COM1,138,781$176,659,031dollars as filed
Eli Lilly and Company532457108COM219,993$169,834,286dollars as filed
ARES MANAGEMENT CORPORATION CL A COM STK03990B101Stock953,770$168,845,869dollars as filed
OPTION CARE HEALTH INC COM NEW68404L201Stock7,265,228$168,553,290dollars as filed
UnitedHealth Group Inc91324P102COM329,064$166,460,108dollars as filed
MONDAY COM LTD SHSM7S64H106Stock697,900$164,313,469dollars as filed
CHIPOTLEMEXICANGRILLI169656105STOK2,675,519$161,333,822dollars as filed
INSULET CORP COM45784P101Stock617,796$161,287,902dollars as filed
SHIFT4 PMTS INC CL A82452J109Stock1,551,549$161,019,755dollars as filed
CASELLA WASTE SYS INC147448104CL A1,520,303$160,863,260dollars as filed
KYNDRYL HLDGS INC50155Q100COMMON STOCK4,609,799$159,499,045dollars as filed
TAIWAN SEMICONDUCTOR MFG874039100SPONSORED ADS803,686$158,720,044dollars as filed
SAMSARA INC COM CL A79589L106Stock3,603,576$157,440,235dollars as filed
DRAFTKINGS INC NEW26142V105COM CL A4,223,007$157,095,856dollars as filed
ATLASSIANCORPCLASSA049468101STOK637,778$155,222,468dollars as filed
SAIA INC78709Y105COM339,784$154,849,762dollars as filed
DYNATRACE INC COM NEW268150109Stock2,848,601$154,821,464dollars as filed
Palantir Technologies Inc. Class A69608A108COM1,908,976$144,375,883dollars as filed
LANTHEUS HLDGS INC516544103COM1,555,093$139,118,620dollars as filed
Oracle Corporation68389X105COM831,545$138,568,680dollars as filed
Costco Wholesale Corporation22160K105COM148,514$136,079,288dollars as filed
FLYWIRE CORPORATION302492103COM VTG6,516,044$134,360,827dollars as filed
PROCORE TECHNOLOGIES INC COM74275K108Stock1,753,156$131,363,979dollars as filed
MACOM TECH SOLUTIONS HLDGS INC COM55405Y100Stock990,679$128,699,144dollars as filed
MASIMO CORP COM574795100Stock768,858$127,092,256dollars as filed
BLUE OWL CAPITAL INC COM CL A09581B103Stock5,452,474$126,824,545dollars as filed
ICON PUB LTD CO SHSG4705A100Stock602,999$126,454,945dollars as filed
TEXAS ROADHOUSE INC COM882681109Stock693,144$125,063,972dollars as filed
GLAUKOS CORP COM377322102Stock807,151$121,024,221dollars as filed
SHARKNINJA INC COM SHSG8068L108Stock1,238,705$120,600,359dollars as filed
BLOCK INC CL A852234103Stock1,416,339$120,374,689dollars as filed
CHURCHILL DOWNS INC171484108COM894,209$119,412,670dollars as filed
PTC INC COM69370C100Stock634,650$116,693,104dollars as filed
HUBSPOTINC443573100STOK165,637$115,411,074dollars as filed
APPLOVIN CORP COM CL A03831W108Stock347,908$112,663,178dollars as filed
FLEX LTD ORDY2573F102Stock2,900,838$111,363,174dollars as filed
GLOBAL PMTS INC37940X102COM988,863$110,812,012dollars as filed
CSX Corporation126408103COM3,369,281$108,726,687dollars as filed
EVERPURE INC CL A74624M102Stock1,733,666$106,499,075dollars as filed
ITT INC COM45073V108Stock742,929$106,149,696dollars as filed
INTRA-CELLULAR THERAPIES INC46116X101COMMON STOCK1,218,728$101,788,163dollars as filed
ABERCROMBIE & FITCH CO CL A002896207Stock667,113$99,713,380dollars as filed
TRANSUNION COM89400J107Stock1,061,400$98,402,394dollars as filed
GALLAGHER ARTHUR J & CO COM363576109Stock346,232$98,278,000dollars as filed
Union Pacific Corporation907818108COM427,029$97,379,729dollars as filed
Bank of America Corp060505104COM2,194,025$96,427,392dollars as filed
TARGET CORP COM87612E106Stock684,053$92,470,350dollars as filed
WILLSCOT HLDGS CORP971378104COM CL A2,754,583$92,140,801dollars as filed
Lam Research Corporation512807306COM1,256,870$90,783,722dollars as filed
FABRINET SHSG3323L100Stock411,422$90,463,469dollars as filed
MSCI INC COM55354G100Stock148,940$89,365,767dollars as filed
BIO RAD LABS INC090572207CL A264,605$86,925,389dollars as filed
M/I HOMES INC55305B101COM644,854$85,733,339dollars as filed
FAIR ISAAC CORP COM303250104Stock42,644$84,901,056dollars as filed
NATERA INC COM632307104Stock535,794$84,816,232dollars as filed
THETRADEDESKINCCLASSCLASSA88339J105STOK720,451$84,674,651dollars as filed
ROKU INC COM CL A77543R102Stock1,119,183$83,200,064dollars as filed
DATADOGINCCLASSA23804L103STOK566,408$80,934,006dollars as filed
AXALTA COATING SYS LTD COMG0750C108Stock2,349,318$80,393,662dollars as filed
HUNT J B TRANS SVCS INC COM445658107Stock461,641$78,783,650dollars as filed
BRIGHT HORIZONS FAM SOL IN DEL COM109194100Stock707,105$78,382,589dollars as filed
TWILIO INC CL A90138F102Stock721,627$77,993,446dollars as filed
TRADEWEB MKTS INC CL A892672106Stock576,568$75,484,283dollars as filed
S&P Global,Inc.78409V104COM150,474$74,940,425dollars as filed
AMETEK INC COM031100100Stock411,359$74,151,550dollars as filed
IDEX CORP COM45167R104Stock354,256$74,142,238dollars as filed
AVERY DENNISON CORP COM053611109Stock395,054$73,926,455dollars as filed
RAMBUS INC DEL COM750917106Stock1,389,538$73,450,979dollars as filed
PERMIAN RESOURCES CORP CLASS A COM71424F105Stock5,089,083$73,181,014dollars as filed
SENTINELONE INC81730H109CL A3,294,695$73,142,229dollars as filed
KEMPER CORP COM488401100Stock1,094,894$72,744,757dollars as filed
COINBASE GLOBAL INC COM CL A19260Q107Stock290,306$72,083,060dollars as filed
VULCAN MATLS CO COM929160109Stock280,200$72,075,877dollars as filed
F5 INC COM315616102Stock286,165$71,961,913dollars as filed
MOONLAKE IMMUNOTHERAPEUTICS CLASS A ORD61559X104Stock1,311,619$71,024,169dollars as filed
AVIENT CORPORATION05368V106COM1,711,752$69,942,187dollars as filed
IRHYTHM HOLDINGS INC COM450056106Stock765,253$69,002,863dollars as filed
APOLLO GLOBAL MGMT INC COM03769M106Stock412,887$68,192,483dollars as filed
NU HLDGS LTDG6683N103ORD SHS CL A6,571,958$68,085,486dollars as filed
DESCARTES SYS GROUP INC COM249906108Stock595,448$67,642,893dollars as filed
BRINKER INTL INC COM109641100Stock492,816$65,194,629dollars as filed
PRIMERICA INC74164M108COM240,130$65,176,085dollars as filed
INSMED INC COM PAR $.01457669307Stock938,551$64,797,561dollars as filed
ROCKET LAB USA INC773122106COM2,521,277$64,216,925dollars as filed
WINGSTOP INC COM974155103Stock225,366$64,049,017dollars as filed
VISTRA CORP COM92840M102Stock462,164$63,718,562dollars as filed
ROCKWELL AUTOMATION INC COM773903109Stock221,350$63,259,482dollars as filed
OKTAINCCLASSA679295105STOK802,426$63,231,169dollars as filed
HAEMONETICS CORP MASS COM405024100Stock805,916$62,925,921dollars as filed
RED ROCK RESORTS INC75700L108CL A1,359,187$62,848,807dollars as filed
PALOMAR HLDGS INC COM69753M105Stock593,460$62,663,441dollars as filed
HILTON WORLDWIDE HLDGS INC COM43300A203Stock253,181$62,576,308dollars as filed
TALEN ENERGY CORP COM87422Q109Stock307,497$61,951,421dollars as filed
MOOG INC CL A615394202Stock314,439$61,894,173dollars as filed
TERADYNE INC COM880770102Stock487,841$61,428,988dollars as filed
CYTOKINETICS INC23282W605COM NEW1,279,990$60,210,730dollars as filed
WASTE CONNECTIONS INC COM94106B101Stock347,531$59,629,406dollars as filed
NORTHERN OIL & GAS INC COM665531307Stock1,600,431$59,472,016dollars as filed
ROCKET PHARMACEUTICALS INC77313F106COM4,714,610$59,262,648dollars as filed
COOPER COS INC216648501COM631,620$58,064,818dollars as filed
KINSALECAPGROUPINC49714P108STOK123,850$57,606,351dollars as filed
COPART INC COM217204106Stock998,815$57,321,996dollars as filed
GLOBANT S AL44385109COM265,507$56,930,065dollars as filed
NXP SEMICONDUCTORS N V COMN6596X109Stock273,836$56,916,823dollars as filed
LIGHTSPEED COMM INC NPV53229C107SUB VTG SHS3,724,083$56,717,784dollars as filed
ELFBEAUTYINC26856L103STOK445,288$55,905,908dollars as filed
FLUOR CORP343412102COM1,123,948$55,433,115dollars as filed
WIX COM LTD SHSM98068105Stock253,593$54,408,378dollars as filed
TECHNIPFMC PLC COMG87110105Stock1,875,923$54,289,212dollars as filed
CHECK POINT SOFTWARE TECH LTD ORDM22465104Stock274,901$51,324,089dollars as filed
ALNYLAM PHARMACEUTICALS INC COM02043Q107Stock216,126$50,856,500dollars as filed
GE HEALTHCARE TECHNOLOGIES INC COMMON STOCK36266G107Stock648,292$50,683,496dollars as filed
TOLL BROTHERS INC COM889478103Stock400,069$50,388,691dollars as filed
ALLEGRO MICROSYSTEMS INC01749D105COM2,247,672$49,134,110dollars as filed
DIAMONDBACK ENERGY INC COM25278X109Stock295,886$48,474,996dollars as filed
M & T BK CORP COM55261F104Stock252,901$47,547,906dollars as filed
ONTO INNOVATION INC COM683344105Stock280,183$46,698,101dollars as filed
CROWDSTRIKE HLDGS INC22788C105COM132,808$45,441,620dollars as filed
XENON PHARMACEUTICALS INC COM98420N105Stock1,157,189$45,361,809dollars as filed
TRACTOR SUPPLY CO COM892356106Stock848,342$45,013,035dollars as filed
LINCOLN ELEC HLDGS INC533900106COM236,312$44,301,411dollars as filed
NEXTPOWER INC CLASS A COM65290E101Stock1,209,614$44,187,199dollars as filed
AAON INC000360206COM PAR $0.004371,554$43,724,475dollars as filed
RYAN SPECIALTY HOLDINGS INC CL A78351F107Stock668,584$42,896,349dollars as filed
CERIDIAN HCM HLDG INC15677J108COM589,564$42,825,947dollars as filed
BOOZ ALLEN HAMILTON HLDG CORP CL A099502106Stock329,071$42,351,438dollars as filed
VEECO INSTRS INC DEL COM922417100Stock1,580,245$42,350,566dollars as filed
PROCEPT BIOROBOTICS CORP COM74276L105Stock522,663$42,084,825dollars as filed
LIVE NATION ENTERTAINMENT INC COM538034109Stock324,801$42,061,767dollars as filed
MERUS N VN5749R100COM993,157$41,762,252dollars as filed
KEYCORP COM493267108Stock2,424,019$41,547,686dollars as filed
WINTRUST FINL CORP COM97650W108Stock325,495$40,592,481dollars as filed
SOLENO THERAPEUTICS INC834203309COM881,460$39,621,627dollars as filed
DOCUSIGN INC COM256163106Stock438,710$39,457,537dollars as filed
LATTICE SEMICONDUCTOR CORP COM518415104Stock690,222$39,101,076dollars as filed
APPLIED INDL TECHNOLOGIES INC COM03820C105Stock162,829$38,992,661dollars as filed
BICYCLE THERAPEUTICS PLC-ADR088786108SPONSORED ADS2,610,337$36,544,718dollars as filed
REVOLVE GROUP INC CL A76156B107Stock1,066,254$35,708,846dollars as filed
CHAMPIONX CORPORATION15872M104COM1,273,972$34,639,299dollars as filed
WESTERN ALLIANCE BANCORP COM957638109Stock402,145$33,595,193dollars as filed
THE BALDWIN INSURANCE GRP IN05589G102COM CL A847,494$32,848,867dollars as filed
89BIO INC282559103COM3,886,794$30,394,729dollars as filed
ONESTREAM INC68278B107CL A1,057,824$30,169,140dollars as filed
PRIMORIS SVCS CORP COM74164F103Stock353,015$26,970,346dollars as filed
OSCAR HEALTH INC687793109CL A1,998,770$26,863,469dollars as filed
EAST WEST BANCORP INC COM27579R104Stock269,750$25,831,260dollars as filed
ICHOR HOLDINGSG4740B105SHS792,879$25,546,561dollars as filed
EXTREME NETWORKS INC30226D106COM1,490,118$24,944,575dollars as filed
ENSIGN GROUP INC29358P101COM147,602$19,610,402dollars as filed
GENIUS SPORTS LIMITED SHARES CL AG3934V109Stock2,128,978$18,415,660dollars as filed
SPX TECHNOLOGIES INC78473E103COM126,036$18,340,759dollars as filed
URANIUM ENERGY CORP COM916896103Stock2,621,644$17,538,798dollars as filed
AMERICAN INTL GROUP INC COM NEW026874784Stock197,986$14,413,381dollars as filed
MUELLER INDS INC COM624756102Stock176,449$14,002,993dollars as filed
Alphabet Inc. Reg. Shares C02079K107COM63,353$12,064,945dollars as filed
Coca-Cola Company191216100COM187,360$11,665,034dollars as filed
International Business Machines Corporation459200101COM50,643$11,132,851dollars as filed
ISHARES TR464287648RUS 2000 GRW ETF38,165$10,984,650dollars as filed
CINTAS CORP COM172908105Stock59,577$10,884,718dollars as filed
AMERIPRISE FINL INC COM03076C106Stock20,266$10,790,226dollars as filed
Merck & Co.,Inc.58933Y105COM105,933$10,538,215dollars as filed
WATSCO INC COM942622200Stock22,016$10,433,162dollars as filed
AbbVie,Inc.00287Y109COM57,357$10,192,339dollars as filed
WILLIAMS COS INC COM969457100Stock185,382$10,032,874dollars as filed
Pfizer Inc.717081103COM337,716$8,959,605dollars as filed
STAG INDUSTRIAL INC85254J102COM256,018$8,658,529dollars as filed
WILEY JOHN & SONS INC968223206CL A194,913$8,519,647dollars as filed
MICROCHIP TECHNOLOGY INC. COM595017104Stock146,330$8,392,026dollars as filed
TJX Companies Inc872540109COM68,021$8,217,617dollars as filed
CUMMINS INC COM231021106Stock22,747$7,929,604dollars as filed
Thermo Fisher Scientific Inc.883556102COM14,869$7,735,300dollars as filed
NextEra Energy,Inc.65339F101COM104,621$7,500,279dollars as filed
DICKS SPORTING GOODS INC COM253393102Stock31,541$7,217,842dollars as filed
GARTNERINC366651107STOK14,370$6,961,834dollars as filed
FIRST CTZNS BANCSHARES INC DEL CL A31946M103Stock3,186$6,732,544dollars as filed
ROBERT HALF INC. COM770323103Stock94,709$6,673,196dollars as filed
RAYMOND JAMES FINL INC COM754730109Stock40,095$6,227,956dollars as filed
CONSTELLATION ENERGY CORP COM21037T109Stock25,701$5,749,571dollars as filed
FIDELITY NATL INFORMATION SVCS COM31620M106Stock68,981$5,571,595dollars as filed
COSTAR GROUP INC COM22160N109Stock75,081$5,375,049dollars as filed
SANOFI SA SPONSORED ADR80105N105ADR104,618$5,045,726dollars as filed
ROLLINS INC COM775711104Stock97,370$4,513,100dollars as filed
Danaher Corporation235851102COM18,537$4,255,168dollars as filed
PAYLOCITY HLDG CORP COM70438V106Stock18,840$3,758,015dollars as filed
HEICO CORP NEW422806208CL A20,130$3,745,790dollars as filed
ISHARES CORE S&P U.S. GROWTH ETF464287671ETF26,796$3,734,023dollars as filed
ISHARESRUSSELL1000GROWTHETF464287614STOK8,231$3,305,244dollars as filed
Home Depot, Inc437076102COM7,134$2,775,055dollars as filed
CIENA CORP COM NEW171779309Stock31,750$2,692,718dollars as filed
RANPAK HOLDINGS CORP75321W103COMMON STOCK384,518$2,645,484dollars as filed
ILLINOIS TOOL WKS INC452308109COM10,345$2,623,078dollars as filed
SAP SE SPON ADR803054204ADR6,637$1,634,096dollars as filed
Intuitive Surgical,Inc.46120E602COM2,549$1,330,476dollars as filed
Booking Holdings Inc.09857L108COM210$1,043,368dollars as filed
Applied Materials,Inc.038222105COM6,036$981,635dollars as filed
Intuit Inc.461202103COM1,410$886,185dollars as filed
PLEXUS CORP COM729132100Stock5,200$813,696dollars as filed
Vertex Pharmaceuticals Incorporated92532F100COM1,742$701,503dollars as filed
TRANE TECHNOLOGIES PLC SHSG8994E103Stock1,759$649,687dollars as filed
ARGENX SE SPONSORED ADR04016X101ADR1,048$644,520dollars as filed
TERRENO RLTY CORP88146M101COM8,840$522,798dollars as filed
MERCADOLIBREINC58733R102STOK294$499,929dollars as filed
ANTERO RESOURCES CORP COM03674X106Stock14,130$495,257dollars as filed
iShares Silver Trust46428Q109COM16,760$441,291dollars as filed
MERCURY GENL CORP NEW589400100COM6,350$422,148dollars as filed
Boston Scientific Corporation101137107COM4,280$382,290dollars as filed
MEDIAALPHA INC58450V104CL A33,800$381,602dollars as filed
ILLUMINA INC452327109COM2,843$379,910dollars as filed
NANO DIMENSION LTD63008G203SPONSORD ADS NEW149,070$369,694dollars as filed
SPY78462F103SHS590$345,787dollars as filed
NATIONAL STORAGE AFFILIATES TR COM SHS BEN IN637870106REIT7,860$297,973dollars as filed
REVOLUTION MEDICINES INC COM76155X100Stock5,799$253,648dollars as filed
ISHARES RUSSELL MID-CAP GROWTH ETF464287481ETF1,661$210,470dollars as filed
JANUX THERAPEUTICS INC47103J105COM3,910$209,341dollars as filed

Amendment chain

FilingRoleFiledAcceptedIngested
13F-HR 0001085146-25-000986this filing2025-02-11acceptance time not in the bulk data set