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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 2021-12-31, filed 2022-02-10, with 244 holding rows worth $16,825,241,000.

Accession
0001085146-22-000764
Filed
2022-02-10
Accepted by EDGAR
acceptance time not in the bulk data set
Ingested
Source
SEC quarterly data set

Original filing

13F report for Q4 2021

A holdings report, 244 entries on the cover page, a total value of $16,825,241,000 stated on the cover page (in dollars after the unit check, H1), rows summing to $16,825,241,000 with VALUE read as thousands by filing date, 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
Apple Inc037833100COM4,174,871$741,332,000thousands by filing date
Microsoft Corp594918104COM1,587,308$533,843,000thousands by filing date
Alphabet Inc. Reg. Shares A02079K305COM183,410$531,346,000thousands by filing date
Amazon.com, Inc023135106COM138,126$460,559,000thousands by filing date
ICON PUB LTD CO SHSG4705A100Stock1,254,559$388,537,000thousands by filing date
ASCENDIS PHARMA A/S DKK 1.0 AD04351P101SPONSORED ADR2,640,934$355,285,000thousands by filing date
META PLATFORMS INC CL A30303M102COM943,087$317,207,000thousands by filing date
BIO RAD LABS INC090572207CL A331,719$250,637,000thousands by filing date
FORTINET INC COM34959E109Stock640,847$230,320,000thousands by filing date
TRANSDIGM GROUP INC COM893641100Stock361,727$230,160,000thousands by filing date
ServiceNow,Inc.81762P102COM324,893$210,891,000thousands by filing date
ATKORE INC047649108COMMON STOCK1,746,289$194,170,000thousands by filing date
Visa Inc92826C839COM877,818$190,232,000thousands by filing date
Salesforce.com, Inc79466L302COM722,360$183,573,000thousands by filing date
AMETEK INC COM031100100Stock1,235,667$181,692,000thousands by filing date
MGM RESORTS INTERNATIONAL552953101COM3,946,975$177,140,000thousands by filing date
ZENDESK INC98936J101COM1,665,189$173,663,000thousands by filing date
ADVANCED DRAIN SYS INC DEL COM00790R104Stock1,271,365$173,071,000thousands by filing date
WORKDAY INC CL A98138H101Stock627,652$171,462,000thousands by filing date
LPL FINL HLDGS INC COM50212V100Stock1,069,670$171,243,000thousands by filing date
HUBSPOTINC443573100STOK255,805$168,614,000thousands by filing date
NVIDIA Corp67066G104COM556,750$163,746,000thousands by filing date
MICROCHIP TECHNOLOGY INC. COM595017104Stock1,870,944$162,884,000thousands by filing date
HUMANA INC COM444859102Stock343,986$159,561,000thousands by filing date
Union Pacific Corporation907818108COM591,264$148,957,000thousands by filing date
TAPESTRY INC COM876030107Stock3,656,629$148,459,000thousands by filing date
GALLAGHER ARTHUR J & CO COM363576109Stock866,449$147,010,000thousands by filing date
TREX CO INC89531P105COM1,077,588$145,507,000thousands by filing date
TRANE TECHNOLOGIES PLC SHSG8994E103Stock713,970$144,243,000thousands by filing date
Qualcomm Incorporated747525103COM788,404$144,175,000thousands by filing date
TRANSUNION COM89400J107Stock1,203,807$142,747,000thousands by filing date
NICE LTD SPONSORED ADR653656108ADR459,992$139,654,000thousands by filing date
GLOBAL PMTS INC37940X102COM1,009,817$136,507,000thousands by filing date
Morgan Stanley617446448COM1,379,952$135,456,000thousands by filing date
Applied Materials,Inc.038222105COM858,799$135,141,000thousands by filing date
Costco Wholesale Corporation22160K105COM233,408$132,506,000thousands by filing date
NATIONAL VISION HLDGS INC COM63845R107Stock2,759,033$132,406,000thousands by filing date
Thermo Fisher Scientific Inc.883556102COM188,828$125,994,000thousands by filing date
SAIA INC78709Y105COM367,792$123,957,000thousands by filing date
Intuit Inc.461202103COM188,030$120,945,000thousands by filing date
DEXCOM INC COM252131107Stock220,424$118,357,000thousands by filing date
BLUEPRINT MEDICINES CORP09627Y109COM1,098,691$117,681,000thousands by filing date
TARGET CORP COM87612E106Stock508,220$117,622,000thousands by filing date
AVANTOR INC COM05352A100Stock2,787,784$117,477,000thousands by filing date
DOUGLAS EMMETT INC25960P109COM3,488,589$116,868,000thousands by filing date
IDEX CORP COM45167R104Stock483,531$114,268,000thousands by filing date
TOPBUILD COR COM89055F103Stock411,099$113,426,000thousands by filing date
LIVE NATION ENTERTAINMENT INC COM538034109Stock936,047$112,035,000thousands by filing date
FIVE BELOW INC COM33829M101Stock536,644$111,026,000thousands by filing date
VAIL RESORTS INC COM91879Q109Stock333,500$109,355,000thousands by filing date
PALO ALTO NETWORKS INC697435105COM195,415$108,799,000thousands by filing date
LUMENTUM HLDGS INC COM55024U109Stock997,515$105,507,000thousands by filing date
DEVON ENERGY CORP NEW COM25179M103Stock2,206,742$97,207,000thousands by filing date
TELEDYNE TECHNOLOGIES INC COM879360105Stock221,587$96,809,000thousands by filing date
COPART INC COM217204106Stock637,723$96,692,000thousands by filing date
MKS INC. COM55306N104Stock551,693$96,088,000thousands by filing date
IRONWOOD PHARMACEUTICALS INC46333X108COMMON STOCK8,145,674$94,979,000thousands by filing date
ENCORE WIRE CORP292562105COM662,502$94,804,000thousands by filing date
SILICON MOTION TECHNOLOGY CORP SPONSORED ADR82706C108ADR989,231$94,007,000thousands by filing date
FIDELITY NATL INFORMATION SVCS COM31620M106Stock846,792$92,427,000thousands by filing date
Tesla Motors, Inc88160R101COM87,271$92,226,000thousands by filing date
BRP INC COM SUN VTG05577W200Stock1,040,625$91,273,000thousands by filing date
AMERICAN FINANCIAL GROUP INC COM025932104Stock660,280$90,670,000thousands by filing date
AVALARA INC05338G106COM700,733$90,472,000thousands by filing date
SVB FINANCIAL GROUP78486Q101COM131,093$88,913,000thousands by filing date
VULCAN MATLS CO COM929160109Stock414,068$85,952,000thousands by filing date
IDEXX LABS INC COM45168D104Stock128,734$84,766,000thousands by filing date
INSULET CORP COM45784P101Stock314,196$83,598,000thousands by filing date
ROCKWELL AUTOMATION INC COM773903109Stock237,680$82,915,000thousands by filing date
WILLSCOT HLDGS CORP971378104COM CL A2,023,112$82,624,000thousands by filing date
ZYNGA INC.98986T108CL A12,386,841$79,276,000thousands by filing date
MSCI INC COM55354G100Stock126,431$77,463,000thousands by filing date
SEAGEN INC81181C104COM499,769$77,264,000thousands by filing date
LINCOLN ELEC HLDGS INC533900106COM553,908$77,254,000thousands by filing date
HORIZON THERAPEUTICS PLCG46188101SHS711,814$76,705,000thousands by filing date
ConocoPhillips20825C104COM1,060,590$76,553,000thousands by filing date
SIGNATURE BANK82669G104COM236,227$76,412,000thousands by filing date
QUEST DIAGNOSTICS INC COM74834L100Stock439,902$76,107,000thousands by filing date
ULTA BEAUTY INC COM90384S303Stock184,160$75,937,000thousands by filing date
CATALENT INC USD 0.01148806102COM588,819$75,386,000thousands by filing date
S&P Global,Inc.78409V104COM159,349$75,202,000thousands by filing date
MARRIOTT INTL INC NEW CL A571903202Stock439,615$72,642,000thousands by filing date
BROOKFIELD ASSET MANAGEMENT IN112585104CL A LTD VT SH1,144,756$69,120,000thousands by filing date
XILINX INC983919101COM324,179$68,736,000thousands by filing date
HAEMONETICS CORP MASS COM405024100Stock1,287,677$68,298,000thousands by filing date
ITT INC COM45073V108Stock660,667$67,514,000thousands by filing date
SPIRIT RLTY CAP INC NEW NPV84860W300COM NEW1,386,287$66,805,000thousands by filing date
ESSEX PPTY TR INC COM297178105REIT189,416$66,718,000thousands by filing date
OPTION CARE HEALTH INC COM NEW68404L201Stock2,316,543$65,882,000thousands by filing date
PACIRA BIOSCIENCES INC COM695127100Stock1,093,482$65,795,000thousands by filing date
AXALTA COATING SYS LTD COMG0750C108Stock1,953,316$64,694,000thousands by filing date
F5 INC COM315616102Stock262,482$64,232,000thousands by filing date
INNOVIVA INC45781M101COM3,683,485$63,540,000thousands by filing date
WESCO INTL INC COM95082P105Stock481,297$63,334,000thousands by filing date
Charles Schwab Corp808513105COM727,951$61,221,000thousands by filing date
NEUROCRINE BIOSCIENCES INC64125C109COM706,226$60,149,000thousands by filing date
WILLIAMS SONOMA INC COM969904101Stock348,252$58,900,000thousands by filing date
GARTNERINC366651107STOK175,635$58,718,000thousands by filing date
ELANCO ANIMAL HEALTH INC COM28414H103Stock2,068,021$58,690,000thousands by filing date
CELANESE CORP DEL COM150870103Stock347,133$58,339,000thousands by filing date
TERADYNE INC COM880770102Stock355,943$58,207,000thousands by filing date
THE COOPER COMPANIES216648402COM NEW136,913$57,358,000thousands by filing date
PAYLOCITY HLDG CORP COM70438V106Stock237,777$56,153,000thousands by filing date
SMARTSHEET INC. (CLASS A)83200N103COM CL A709,211$54,928,000thousands by filing date
EVERPURE INC CL A74624M102Stock1,670,151$54,363,000thousands by filing date
TWILIO INC CL A90138F102Stock205,646$54,155,000thousands by filing date
ARES MANAGEMENT CORPORATION CL A COM STK03990B101Stock661,882$53,791,000thousands by filing date
SENSATA TECHNOLOGIES HLDG PLg8060n102SHS871,784$53,780,000thousands by filing date
NETAPP INC COM64110D104Stock580,853$53,433,000thousands by filing date
NUTANIX INC CL A67059N108Stock1,670,585$53,225,000thousands by filing date
COGNIZANT TECHNOLOGY SOLUTIONS CL A192446102Stock598,727$53,119,000thousands by filing date
DIAMONDBACK ENERGY INC COM25278X109Stock468,407$50,518,000thousands by filing date
CHURCHILL DOWNS INC171484108COM206,826$49,824,000thousands by filing date
TANDEM DIABETES CARE INC875372203COM NEW321,990$48,466,000thousands by filing date
AMEDISYS INC023436108COM298,459$48,315,000thousands by filing date
ZOOMINFO TECHNOLOGIES INC COMMON STOCK98980F104Stock746,075$47,898,000thousands by filing date
ON SEMICONDUCTOR CORP COM682189105Stock702,153$47,690,000thousands by filing date
SPLUNK INC848637104COM410,140$47,461,000thousands by filing date
PS BUSINESS PKS INC CALIF69360J107COM255,524$47,060,000thousands by filing date
EXPEDIA GROUP INC COM NEW30212P303Stock257,462$46,529,000thousands by filing date
WASTE CONNECTIONS INC COM94106B101Stock341,296$46,508,000thousands by filing date
BOOZ ALLEN HAMILTON HLDG CORP CL A099502106Stock539,314$45,728,000thousands by filing date
ENDEAVOR GROUP HLDGS INC29260Y109CL A COM1,295,495$45,200,000thousands by filing date
ROCKET PHARMACEUTICALS INC77313F106COM2,037,991$44,489,000thousands by filing date
RANPAK HOLDINGS CORP75321W103COMMON STOCK1,180,144$44,350,000thousands by filing date
PEGASYSTEMS INC COM705573103Stock392,250$43,861,000thousands by filing date
JUNIPER NETWORKS INC48203R104COM1,209,118$43,178,000thousands by filing date
COGENT COMMUNICATIONS GROUP19239V302COM NEW590,025$43,178,000thousands by filing date
MIRATI THERAPEUTICS INC60468T105COM293,148$43,002,000thousands by filing date
TRADEWEB MKTS INC CL A892672106Stock427,312$42,791,000thousands by filing date
FMC CORP COM NEW302491303Stock387,335$42,564,000thousands by filing date
LYFT INC55087P104CL A COM893,423$38,176,000thousands by filing date
AMERICAN ASSETS TR INC COM024013104REIT1,013,588$38,040,000thousands by filing date
MONGODB INC CL A60937P106Stock70,933$37,548,000thousands by filing date
IAA INC449253103COM734,496$37,180,000thousands by filing date
PDC ENERGY INC69327R101COM761,322$37,137,000thousands by filing date
WESTERN ALLIANCE BANCORP COM957638109Stock344,842$37,122,000thousands by filing date
AVIENT CORPORATION05368V106COM658,920$36,867,000thousands by filing date
THE BALDWIN INSURANCE GRP IN05589G102COM CL A1,016,888$36,720,000thousands by filing date
ROSS STORES INC COM778296103Stock319,678$36,533,000thousands by filing date
HEXCEL CORP NEW428291108COM703,987$36,467,000thousands by filing date
PLAYA HOTELS & RESORTS NVN70544106SHS4,544,594$36,266,000thousands by filing date
INDEPENDENCE RLTY TR INC45378A106COM1,369,509$35,374,000thousands by filing date
WNS HOLDINGS LTD92932M101SPON ADR374,058$32,999,000thousands by filing date
MAXLINEAR INC57776J100COM436,982$32,944,000thousands by filing date
TURNING PT THERAPEUTICS90041T108COM685,549$32,701,000thousands by filing date
LULULEMON ATHLETICA INC550021109COM81,659$31,965,000thousands by filing date
WORKIVA INC COM CL A98139A105Stock244,888$31,955,000thousands by filing date
PAYA HOLDINGS INC70434P103COM CL A4,802,854$30,450,000thousands by filing date
LIGHTSPEED COMM INC NPV53229C107SUB VTG SHS745,934$30,158,000thousands by filing date
PRIMERICA INC74164M108COM195,459$29,958,000thousands by filing date
SEMTECH CORP COM816850101Stock321,348$28,577,000thousands by filing date
WINGSTOP INC COM974155103Stock164,222$28,378,000thousands by filing date
FATE THERAPEUTICS INC31189P102COM479,648$28,064,000thousands by filing date
SMART GLOBAL HLDGS INCG8232Y101COM385,968$27,400,000thousands by filing date
CINTAS CORP COM172908105Stock59,778$26,492,000thousands by filing date
Broadcom Inc.11135F101COM39,555$26,320,000thousands by filing date
AZENTA INC114340102COM252,551$26,041,000thousands by filing date
FIRST CTZNS BANCSHARES INC DEL CL A31946M103Stock30,957$25,689,000thousands by filing date
REVOLVE GROUP INC CL A76156B107Stock447,380$25,071,000thousands by filing date
SHIFT4 PMTS INC CL A82452J109Stock424,138$24,570,000thousands by filing date
PALOMAR HLDGS INC COM69753M105Stock377,227$24,433,000thousands by filing date
BILL HOLDINGS INC090043100COM96,340$24,003,000thousands by filing date
FLYWIRE CORPORATION302492103COM VTG616,562$23,466,000thousands by filing date
STEPSTONE GROUP INC85914M107COM CL A556,484$23,133,000thousands by filing date
Home Depot, Inc437076102COM55,503$23,034,000thousands by filing date
BLACKLINE, INC.09239B109COM219,248$22,701,000thousands by filing date
SILVERGATE CAP CORP CLASS A82837P408CL A151,560$22,461,000thousands by filing date
SAMSARA INC COM CL A79589L106Stock729,686$20,511,000thousands by filing date
FIVE9 INC338307101COM136,143$18,695,000thousands by filing date
HILTON WORLDWIDE HLDGS INC COM43300A203Stock118,690$18,514,000thousands by filing date
PACIFIC BIOSCIENCES CALIF INC COM69404D108Stock858,583$17,567,000thousands by filing date
ETSY INC29786A106COM79,899$17,493,000thousands by filing date
INVITAE CORP46185L103COM970,218$14,815,000thousands by filing date
ENPHASE ENERGY INC COM29355A107Stock77,058$14,097,000thousands by filing date
Alphabet Inc. Reg. Shares C02079K107COM4,786$13,849,000thousands by filing date
ILLINOIS TOOL WKS INC452308109COM54,102$13,352,000thousands by filing date
AbbVie,Inc.00287Y109COM97,377$13,185,000thousands by filing date
METTLER TOLEDO INTERNATIONAL COM592688105Stock6,863$11,648,000thousands by filing date
Danaher Corporation235851102COM32,136$10,573,000thousands by filing date
PAYPALHLDGSINC70450Y103STOK49,411$9,318,000thousands by filing date
LAM RESEARCH CORP512807108COM12,945$9,309,000thousands by filing date
3D SYSTEMS CORP88554D205COMMON STOCK422,472$9,100,000thousands by filing date
Johnson & Johnson478160104COM49,923$8,540,000thousands by filing date
ALEXANDRIA REAL ESTATE EQ INC COM015271109REIT37,930$8,457,000thousands by filing date
SUN CMNTYS INC COM866674104REIT38,820$8,151,000thousands by filing date
Cisco Systems,Inc.17275R102COM128,430$8,139,000thousands by filing date
PepsiCo,Inc.713448108COM41,520$7,212,000thousands by filing date
WYNDHAM HOTELS & RESORTS INC98311A105COM78,590$7,046,000thousands by filing date
BLACKROCK INC CL A COM09247X101COM7,645$6,999,000thousands by filing date
Walmart Inc.931142103COM45,730$6,617,000thousands by filing date
Coca-Cola Company191216100COM110,905$6,567,000thousands by filing date
CVS Health Corporation126650100COM62,125$6,409,000thousands by filing date
AMERICAN INTL GROUP INC COM NEW026874784Stock111,400$6,334,000thousands by filing date
BUNGE LTDG16962105COM65,660$6,130,000thousands by filing date
Bank of America Corp060505104COM133,416$5,936,000thousands by filing date
Bristol-Myers Squibb Company110122108COM95,140$5,932,000thousands by filing date
COSTAR GROUP INC COM22160N109Stock74,500$5,888,000thousands by filing date
AVERY DENNISON CORP COM053611109Stock25,813$5,590,000thousands by filing date
CF INDUSTRIES HOLD COM125269100Stock78,690$5,570,000thousands by filing date
Analog Devices,Inc.032654105COM28,930$5,085,000thousands by filing date
BRIGHT HORIZONS FAM SOL IN DEL COM109194100Stock37,450$4,714,000thousands by filing date
VALERO ENERGY CORP COM91913Y100Stock61,060$4,586,000thousands by filing date
RAYMOND JAMES FINL INC COM754730109Stock40,095$4,026,000thousands by filing date
Boston Scientific Corporation101137107COM81,153$3,447,000thousands by filing date
TIMKEN CO887389104COM47,820$3,313,000thousands by filing date
FAIR ISAAC CORP COM303250104Stock7,426$3,220,000thousands by filing date
HEICO CORP NEW422806208CL A20,130$2,587,000thousands by filing date
NEWMONT CORP651639106COM25,011$1,551,000thousands by filing date
METROPOLITAN BANK HOLDING CO591774104COMMON STOCK12,700$1,353,000thousands by filing date
ISHARESRUSSELL1000GROWTHETF464287614STOK4,158$1,271,000thousands by filing date
Starbucks Corporation855244109COM10,830$1,267,000thousands by filing date
Walt Disney Co254687106COM7,921$1,227,000thousands by filing date
NIKE,Inc. Class B654106103COM6,929$1,155,000thousands by filing date
CSX Corporation126408103COM28,590$1,075,000thousands by filing date
ISHARES RUSSELL MID-CAP GROWTH ETF464287481ETF8,998$1,037,000thousands by filing date
JPMorgan Chase & Co46625H100COM6,300$998,000thousands by filing date
BIOGEN INC COM09062X103Stock4,039$969,000thousands by filing date
BLACK KNIGHT INC COM09215C105Stock11,550$957,000thousands by filing date
ESSENTIAL PPTYS RLTY TR INC COM29670E107REIT31,900$920,000thousands by filing date
MERCADOLIBREINC58733R102STOK674$909,000thousands by filing date
SPDR SER TR78468R556S&P OILGAS EXP8,900$853,000thousands by filing date
ATLASSIAN CORPG06242104CL A2,229$850,000thousands by filing date
Comcast Corp20030N101COM16,434$827,000thousands by filing date
PERELLA WEINBERG PARTNERS71367G102COMMON STOCK64,280$827,000thousands by filing date
OLIN CORP680665205COM PAR $114,120$812,000thousands by filing date
TERRENO RLTY CORP88146M101COM8,840$754,000thousands by filing date
CIENA CORP COM NEW171779309Stock9,460$728,000thousands by filing date
ISHARES TR464287648RUS 2000 GRW ETF2,435$714,000thousands by filing date
NXP SEMICONDUCTORS N V COMN6596X109Stock3,131$713,000thousands by filing date
FLUENCE ENERGY INC34379V103COM CL A20,000$711,000thousands by filing date
FIRST INTERSTATE BANCSYSTEM IN32055Y201COM CL A15,620$635,000thousands by filing date
FREEPORT MCMORAN INC CL B35671D857Stock14,910$622,000thousands by filing date
CIRRUS LOGIC INC COM172755100Stock6,700$617,000thousands by filing date
WILLIAMS COS INC COM969457100Stock23,330$608,000thousands by filing date
NATIONAL STORAGE AFFILIATES TR COM SHS BEN IN637870106REIT7,860$544,000thousands by filing date
OAK STR HEALTH INC67181A107COM14,220$471,000thousands by filing date
OLD DOMINION FREIGHT LINE INC COM679580100Stock1,249$448,000thousands by filing date
TG THERAPEUTICS INC COM88322Q108Stock23,400$445,000thousands by filing date
PATRIOT NATL BANCORP INC70336F203COM NEW27,990$435,000thousands by filing date
WEX INC96208T104COM2,980$418,000thousands by filing date
UnitedHealth Group Inc91324P102COM795$399,000thousands by filing date
SPY78462F103SHS626$297,000thousands by filing date
VENTAS INC COM92276F100REIT4,442$227,000thousands by filing date

Amendment chain

FilingRoleFiledAcceptedIngested
13F-HR 0001085146-22-000764this filing2022-02-10acceptance time not in the bulk data set