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WESTFIELD CAPITAL MANAGEMENT CO LP

Q3 2023 · 13F-HR

WESTFIELD CAPITAL MANAGEMENT CO LPholdings as filed

Filed 2023-11-13 · accession 0001085146-23-004307

$14.68B
Reported value
234
Positions
2023-09-30
Period end
View analyzed profile →PRO

Holdings as filed

CUSIPTickerIssuerValue% port.SharesClassVoting
037833100AAPLAPPLE INC$448.7M3.06%2,620,832CommonSOLE
02079K305GOOGLALPHABET INC$427.0M2.91%3,263,044CommonSOLE
594918104MSFTMICROSOFT CORP$423.9M2.89%1,342,536CommonSOLE
04351P101ASNDUSDASCENDIS PHARMA A/S$356.0M2.43%3,802,177CommonSOLE
023135106AMZNAMAZON COM INC$302.6M2.06%2,380,224CommonSOLE
67066G104NVDANVIDIA CORPORATION$277.9M1.89%638,970CommonSOLE
893641100TDGTRANSDIGM GROUP INC$273.1M1.86%323,938CommonSOLE
92826C839VVISA INC$252.8M1.72%1,099,058CommonSOLE
30303M102METAMETA PLATFORMS INC$220.6M1.50%734,688CommonSOLE
91324P102UNHUNITEDHEALTH GROUP INC$217.2M1.48%430,802CommonSOLE
252131107DXCMDEXCOM INC$172.4M1.17%1,847,865CommonSOLE
81762P102NOWSERVICENOW INC$169.7M1.16%303,647CommonSOLE
12008R107BLDRBUILDERS FIRSTSOURCE INC$158.5M1.08%1,273,570CommonSOLE
78709Y105SAIASAIA INC$154.1M1.05%386,496CommonSOLE
031100100AMEAMETEK INC$153.7M1.05%1,040,033CommonSOLE
532457108LLYELI LILLY & CO$153.6M1.05%286,015CommonSOLE
457730109INSPINSPIRE MED SYS INC$145.3M0.99%732,400CommonSOLE
50212V100LPLALPL FINL HLDGS INC$142.4M0.97%599,104CommonSOLE
34959E109FTNTFORTINET INC$141.6M0.96%2,412,418CommonSOLE
05464C101AXONAXON ENTERPRISE INC$138.5M0.94%696,193CommonSOLE
G4705A100ICLRICON PLC$136.9M0.93%556,017CommonSOLE
848637104SPLKCHFSPLUNK INC$136.0M0.93%929,975CommonSOLE
443510607HUBBHUBBELL INC$133.2M0.91%424,895CommonSOLE
169656105CMGCHIPOTLE MEXICAN GRILL INC$133.1M0.91%72,682CommonSOLE
090572207BIOBIO RAD LABS INC$129.9M0.88%362,328CommonSOLE
971378104WSCWILLSCOT MOBIL MINI HLDNG CO$124.9M0.85%3,003,308CommonSOLE
68404L201OPCHOPTION CARE HEALTH INC$121.2M0.83%3,747,388CommonSOLE
315616102FFIVF5 INC$120.6M0.82%748,118CommonSOLE
22160K105COSTCOSTCO WHSL CORP NEW$116.2M0.79%205,617CommonSOLE
437076102HDHOME DEPOT INC$115.8M0.79%383,099CommonSOLE
79466L302CRMSALESFORCE INC$115.6M0.79%570,176CommonSOLE
533900106LECOLINCOLN ELEC HLDGS INC$112.7M0.77%619,974CommonSOLE
302492103FLYWFLYWIRE CORPORATION$112.1M0.76%3,514,112CommonSOLE
52490G102LEGNLEGEND BIOTECH CORP$112.0M0.76%1,668,150CommonSOLE
G3922B107GGENPACT LIMITED$106.7M0.73%2,948,433CommonSOLE
573874104MRVLMARVELL TECHNOLOGY INC$106.2M0.72%1,962,787CommonSOLE
45784P101PODDINSULET CORP$101.6M0.69%637,261CommonSOLE
83200N103SMARGBPSMARTSHEET INC$100.4M0.68%2,482,430CommonSOLE
88025T102TENBTENABLE HLDGS INC$98.3M0.67%2,195,092CommonSOLE
803607100SRPTSAREPTA THERAPEUTICS INC$97.8M0.67%806,400CommonSOLE
443573100HUBSHUBSPOT INC$95.3M0.65%193,532CommonSOLE
428291108HXLHEXCEL CORP NEW$95.3M0.65%1,462,293CommonSOLE
37940X102GPNGLOBAL PMTS INC$93.4M0.64%809,810CommonSOLE
92839U206VCVISTEON CORP$91.7M0.62%664,137CommonSOLE
127387108CDNSCADENCE DESIGN SYSTEM INC$91.3M0.62%389,797CommonSOLE
516544103LNTHLANTHEUS HLDGS INC$89.9M0.61%1,294,391CommonSOLE
88160R101TSLATESLA INC$89.9M0.61%359,314CommonSOLE
05352A100AVTRAVANTOR INC$89.5M0.61%4,246,946CommonSOLE
21036P108STZCONSTELLATION BRANDS INC$87.8M0.60%349,382CommonSOLE
653656108NICENICE LTD$86.9M0.59%511,020CommonSOLE
773903109ROKROCKWELL AUTOMATION INC$86.7M0.59%303,324CommonSOLE
77313F106RCKTROCKET PHARMACEUTICALS INC$85.9M0.59%4,193,996CommonSOLE
70438V106PCTYPAYLOCITY HLDG CORP$85.9M0.58%472,517CommonSOLE
907818108UNPUNION PAC CORP$84.7M0.58%416,126CommonSOLE
053611109AVYAVERY DENNISON CORP$83.5M0.57%457,013CommonSOLE
15677J108DAYCERIDIAN HCM HLDG INC$83.2M0.57%1,226,077CommonSOLE
05577W200DOOBRP INC$83.0M0.57%1,094,083CommonSOLE
55354G100MSCIMSCI INC$82.4M0.56%160,679CommonSOLE
98138H101WDAYWORKDAY INC$82.4M0.56%383,625CommonSOLE
363576109AJGGALLAGHER ARTHUR J & CO$82.3M0.56%361,096CommonSOLE
268150109DTDYNATRACE INC$82.3M0.56%1,760,141CommonSOLE
55305B101MHOM/I HOMES INC$82.2M0.56%977,922CommonSOLE
150870103CECELANESE CORP DEL$82.0M0.56%653,146CommonSOLE
445658107JBHTHUNT J B TRANS SVCS INC$81.5M0.55%432,173CommonSOLE
026874784AIGAMERICAN INTL GROUP INC$81.0M0.55%1,336,355CommonSOLE
217204106CPRTCOPART INC$76.4M0.52%1,773,535CommonSOLE
45167R104IEXIDEX CORP$74.9M0.51%360,063CommonSOLE
03990B101ARESARES MANAGEMENT CORPORATION$74.8M0.51%727,479CommonSOLE
303250104FICOFAIR ISAAC CORP$74.4M0.51%85,643CommonSOLE
25243Q205DEODIAGEO PLC$73.9M0.50%495,284CommonSOLE
03769M106APOAPOLLO GLOBAL MGMT INC$73.8M0.50%822,633CommonSOLE
64125C109NBIXNEUROCRINE BIOSCIENCES INC$73.0M0.50%649,292CommonSOLE
552953101MGMMGM RESORTS INTERNATIONAL$73.0M0.50%1,984,496CommonSOLE
743315103PGRPROGRESSIVE CORP$72.8M0.50%522,746CommonSOLE
90353T100UBERUBER TECHNOLOGIES INC$72.6M0.49%1,577,631CommonSOLE
03076C106AMPAMERIPRISE FINL INC$72.3M0.49%219,178CommonSOLE
33829M101FIVEFIVE BELOW INC$71.3M0.49%443,081CommonSOLE
243537107DECKDECKERS OUTDOOR CORP$69.5M0.47%135,105CommonSOLE
89400J107TRUTRANSUNION$69.5M0.47%967,445CommonSOLE
866674104SUISUN CMNTYS INC$68.3M0.46%576,833CommonSOLE
78409V104SPGIS&P GLOBAL INC$68.1M0.46%186,231CommonSOLE
882681109TXRHTEXAS ROADHOUSE INC$67.6M0.46%703,046CommonSOLE
697435105PANWPALO ALTO NETWORKS INC$67.5M0.46%287,981CommonSOLE
693506107PPGPPG INDS INC$67.0M0.46%515,948CommonSOLE
69047Q102OVVOVINTIV INC$66.7M0.45%1,403,007CommonSOLE
942622200WSOWATSCO INC$66.7M0.45%176,533CommonSOLE
12514G108CDWCDW CORP$66.4M0.45%328,984CommonSOLE
25179M103DVNDEVON ENERGY CORP NEW$64.7M0.44%1,356,705CommonSOLE
595017104MCHPMICROCHIP TECHNOLOGY INC.$63.8M0.43%817,206CommonSOLE
45168D104IDXXIDEXX LABS INC$63.7M0.43%145,612CommonSOLE
016255101ALGNALIGN TECHNOLOGY INC$63.5M0.43%207,956CommonSOLE
929160109VMCVULCAN MATLS CO$62.6M0.43%310,031CommonSOLE
550021109LULULULULEMON ATHLETICA INC$62.6M0.43%162,299CommonSOLE
931142103WMTWALMART INC$62.3M0.42%389,282CommonSOLE
09581B103OWLBLUE OWL CAPITAL INC$60.0M0.41%4,629,423CommonSOLE
45073V108ITTITT INC$59.0M0.40%602,444CommonSOLE
876030107TPRTAPESTRY INC$58.3M0.40%2,028,083CommonSOLE
649445103NYCBEURNEW YORK CMNTY BANCORP INC$58.2M0.40%5,135,955CommonSOLE
69370C100PTCPTC INC$58.2M0.40%410,467CommonSOLE
43300A203HLTHILTON WORLDWIDE HLDGS INC$56.8M0.39%378,231CommonSOLE
665531307NOGNORTHERN OIL & GAS INC$56.6M0.39%1,406,271CommonSOLE
679295105OKTAOKTA INC$56.3M0.38%690,334CommonSOLE
453204109PIIMPINJ INC$56.3M0.38%1,022,359CommonSOLE
75700L108RRRRED ROCK RESORTS INC$55.5M0.38%1,354,249CommonSOLE
216648402COOPER COS INC$55.1M0.38%173,324CommonSOLE
71424F105PRPERMIAN RESOURCES CORP$54.7M0.37%3,921,499CommonSOLE
98980G102ZSZSCALER INC$53.8M0.37%346,083CommonSOLE
007903107AMDADVANCED MICRO DEVICES INC$53.1M0.36%516,866CommonSOLE
36266G107GEHCGE HEALTHCARE TECHNOLOGIES I$53.1M0.36%780,145CommonSOLE
574795100MASIMASIMO CORP$52.9M0.36%603,681CommonSOLE
892672106TWTRADEWEB MKTS INC$52.7M0.36%656,485CommonSOLE
109194100BFAMBRIGHT HORIZONS FAM SOL IN D$52.6M0.36%646,208CommonSOLE
22160N109CSGPCOSTAR GROUP INC$51.3M0.35%667,521CommonSOLE
92243G108PCVXVAXCYTE INC$51.2M0.35%1,003,916CommonSOLE
92932M101WNSNWNS HLDGS LTD$50.8M0.35%741,793CommonSOLE
405024100HAEHAEMONETICS CORP MASS$50.2M0.34%559,963CommonSOLE
94106B101WCNWASTE CONNECTIONS INC$50.0M0.34%372,284CommonSOLE
84860W300SRCUSDSPIRIT RLTY CAP INC NEW$49.7M0.34%1,483,413CommonSOLE
60937P106MDBMONGODB INC$49.6M0.34%143,368CommonSOLE
040413106ANETEURARISTA NETWORKS INC$49.4M0.34%268,368CommonSOLE
09073M104TECHBIO-TECHNE CORP$47.6M0.32%699,662CommonSOLE
G6095L109APTIV PLC$47.1M0.32%477,636CommonSOLE
G01767105ALKSALKERMES PLC$46.8M0.32%1,669,613CommonSOLE
92537N108VRTVERTIV HOLDINGS CO$46.5M0.32%1,249,534CommonSOLE
099502106BAHBOOZ ALLEN HAMILTON HLDG COR$46.4M0.32%425,074CommonSOLE
49714P108KNSLKINSALE CAP GROUP INC$45.9M0.31%110,862CommonSOLE
147448104CWSTCASELLA WASTE SYS INC$45.1M0.31%591,703CommonSOLE
23804L103DDOGDATADOG INC$44.9M0.31%493,343CommonSOLE
73278L105POOLPOOL CORP$43.2M0.29%121,201CommonSOLE
74164M108PRIPRIMERICA INC$42.7M0.29%219,886CommonSOLE
59001A102MTHMERITAGE HOMES CORP$41.7M0.28%340,662CommonSOLE
25278X109FANGDIAMONDBACK ENERGY INC$41.0M0.28%264,791CommonSOLE
79589L106IOTSAMSARA INC$40.7M0.28%1,613,516CommonSOLE
03064D108COLDAMERICOLD REALTY TRUST INC$40.5M0.28%1,332,669CommonSOLE
64110D104NTAPNETAPP INC$40.5M0.28%533,589CommonSOLE
054540208ACLSAXCELIS TECHNOLOGIES INC$40.4M0.28%247,928CommonSOLE
12685J105CABOCABLE ONE INC$40.1M0.27%65,140CommonSOLE
759916109RGENREPLIGEN CORP$38.9M0.26%244,495CommonSOLE
82452J109FOURSHIFT4 PMTS INC$38.4M0.26%693,578CommonSOLE
703481101PTENPATTERSON-UTI ENERGY INC$37.2M0.25%2,684,388CommonSOLE
000360206AAONAAON INC$36.4M0.25%639,906CommonSOLE
974155103WINGWINGSTOP INC$36.0M0.25%200,068CommonSOLE
96208T104WEXWEX INC$36.0M0.24%191,172CommonSOLE
G0750C108AXTAAXALTA COATING SYS LTD$35.6M0.24%1,322,683CommonSOLE
G3323L100FNFABRINET$34.7M0.24%208,550CommonSOLE
05478C105AZEKAZEK CO INC$34.7M0.24%1,168,290CommonSOLE
171484108CHDNCHURCHILL DOWNS INC$34.5M0.23%297,025CommonSOLE
538034109LYVLIVE NATION ENTERTAINMENT IN$34.2M0.23%412,241CommonSOLE
74624M102PPURE STORAGE INC$34.0M0.23%954,503CommonSOLE
G8060N102STSENSATA TECHNOLOGIES HLDG PL$33.6M0.23%888,854CommonSOLE
05368V106AVNTAVIENT CORPORATION$33.5M0.23%949,317CommonSOLE
297178105ESSESSEX PPTY TR INC$31.8M0.22%149,886CommonSOLE
81730H109SSENTINELONE INC$31.8M0.22%1,885,443CommonSOLE
01988P108MDRXVERADIGM INC$31.6M0.21%2,401,754CommonSOLE
13100M509CALXCALIX INC$31.1M0.21%679,187CommonSOLE
57142B104MQMARQETA INC$30.3M0.21%5,074,757CommonSOLE
406216101HALHALLIBURTON CO$30.3M0.21%748,936CommonSOLE
85914M107STEPSTEPSTONE GROUP INC$28.8M0.20%913,069CommonSOLE
91347P105OLEDUNIVERSAL DISPLAY CORP$27.8M0.19%177,304CommonSOLE
45781M101INVAINNOVIVA INC$26.6M0.18%2,045,010CommonSOLE
15872M104APY1EURCHAMPIONX CORPORATION$25.0M0.17%700,453CommonSOLE
85254J102STAGSTAG INDL INC$23.9M0.16%691,212CommonSOLE
501242101KLICKULICKE & SOFFA INDS INC$23.7M0.16%487,571CommonSOLE
86800U104SMCIUSDSUPER MICRO COMPUTER INC$23.5M0.16%85,662CommonSOLE
61559X104MLTXMOONLAKE IMMUNOTHERAPEUTICS$22.3M0.15%391,279CommonSOLE
69753M105PLMRPALOMAR HLDGS INC$22.0M0.15%433,346CommonSOLE
15678U128CERE1EURCEREVEL THERAPEUTICS HLDNG I$21.3M0.14%974,483CommonSOLE
03753U106APLSUSDAPELLIS PHARMACEUTICALS INC$20.9M0.14%548,870CommonSOLE
11135F101AVGOBROADCOM INC$20.7M0.14%24,978CommonSOLE
282559103ETNBGBP89BIO INC$20.3M0.14%1,311,886CommonSOLE
95082P105WCCWESCO INTL INC$16.9M0.11%117,245CommonSOLE
H17182108CRSPCRISPR THERAPEUTICS AG$13.5M0.09%297,550CommonSOLE
729132100PLXSPLEXUS CORP$13.3M0.09%142,815CommonSOLE
459200101IBMINTERNATIONAL BUSINESS MACHS$12.7M0.09%90,209CommonSOLE
M20791105CAMTCAMTEK LTD$12.1M0.08%194,237CommonSOLE
883556102TMOTHERMO FISHER SCIENTIFIC INC$10.9M0.07%21,481CommonSOLE
02079K107GOOGALPHABET INC$10.8M0.07%82,119CommonSOLE
17275R102CSCOCISCO SYS INC$9.6M0.07%178,499CommonSOLE
713448108PEPPEPSICO INC$9.3M0.06%54,876CommonSOLE
58933Y105MRKMERCK & CO INC$8.9M0.06%86,820CommonSOLE
12510Q100CCCCCC INTELLIGENT SOLUTIONS HL$8.7M0.06%651,234CommonSOLE
191216100KOCOCA COLA CO$8.2M0.06%147,185CommonSOLE
375558103GILDGILEAD SCIENCES INC$7.4M0.05%98,888CommonSOLE
452308109ITWILLINOIS TOOL WKS INC$7.1M0.05%30,918CommonSOLE
29444U700EQIXEQUINIX INC$7.0M0.05%9,703CommonSOLE
654106103NKENIKE INC$6.9M0.05%72,376CommonSOLE
N6596X109NXPINXP SEMICONDUCTORS N V$6.8M0.05%34,132CommonSOLE
10316T104BOXBOX INC$6.8M0.05%281,225CommonSOLE
235851102DHRDANAHER CORPORATION$6.8M0.05%27,235CommonSOLE
032654105ADIANALOG DEVICES INC$6.6M0.04%37,700CommonSOLE
172908105CTASCINTAS CORP$6.3M0.04%13,057CommonSOLE
427866108HSYHERSHEY CO$6.1M0.04%30,629CommonSOLE
166764100CVXCHEVRON CORP NEW$6.0M0.04%35,560CommonSOLE
231021106CMICUMMINS INC$5.9M0.04%25,745CommonSOLE
060505104BACBANK AMERICA CORP$5.8M0.04%210,086CommonSOLE
29472R108ELSEQUITY LIFESTYLE PPTYS INC$5.7M0.04%89,702CommonSOLE
624756102MLIMUELLER INDS INC$5.6M0.04%74,142CommonSOLE
592688105MTDMETTLER TOLEDO INTERNATIONAL$5.5M0.04%4,926CommonSOLE
042068205ARMARM HOLDINGS PLC$5.4M0.04%100,850CommonSOLE
19239V302CCOICOGENT COMMUNICATIONS HLDGS$5.4M0.04%86,681CommonSOLE
892356106TSCOTRACTOR SUPPLY CO$5.1M0.03%25,060CommonSOLE
526057104LENLENNAR CORP$5.0M0.03%44,412CommonSOLE
366651107ITGARTNER INC$4.9M0.03%14,370CommonSOLE
20825C104COPCONOCOPHILLIPS$4.9M0.03%40,876CommonSOLE
580135101MCDMCDONALDS CORP$4.9M0.03%18,454CommonSOLE
12572Q105CMECME GROUP INC$4.7M0.03%23,663CommonSOLE
31946M103FCNCAFIRST CTZNS BANCSHARES INC N$4.4M0.03%3,185CommonSOLE
754730109RJFRAYMOND JAMES FINL INC$4.0M0.03%40,095CommonSOLE
14149Y108CAHCARDINAL HEALTH INC$3.6M0.02%41,183CommonSOLE
887389104TKRTIMKEN CO$3.5M0.02%47,820CommonSOLE
G3421J106FERG1GBXFERGUSON PLC NEW$3.5M0.02%21,158CommonSOLE
053015103ADPAUTOMATIC DATA PROCESSING IN$3.4M0.02%14,252CommonSOLE
422806208HEI/AHEICO CORP NEW$2.6M0.02%20,130CommonSOLE
75321W103PACKRANPAK HOLDINGS CORP$2.4M0.02%442,450CommonSOLE
038222105AMATAPPLIED MATLS INC$1.8M0.01%12,858CommonSOLE
257554105DOMODOMO INC$1.6M0.01%167,758CommonSOLE
163072101CAKECHEESECAKE FACTORY INC$1.2M0.01%41,072CommonSOLE
126408103CSXCSX CORP$879,1430.01%28,590CommonSOLE
969457100WMBWILLIAMS COS INC$785,9880.01%23,330CommonSOLE
29084Q100EMEEMCOR GROUP INC$744,7810.01%3,540CommonSOLE
81369Y886XLUSELECT SECTOR SPDR TR$726,0180.00%12,320CommonSOLE
G8994E103TTTRANE TECHNOLOGIES PLC$722,1570.00%3,559CommonSOLE
461202103INTUINTUIT$720,4250.00%1,410CommonSOLE
09857L108BKNGBOOKING HOLDINGS INC$647,6300.00%210CommonSOLE
679580100ODFLOLD DOMINION FREIGHT LINE IN$511,0160.00%1,249CommonSOLE
88146M101TRNOTERRENO RLTY CORP$502,1120.00%8,840CommonSOLE
302301106EZPWEZCORP INC$493,1850.00%59,780CommonSOLE
339750101FNDFLOOR & DECOR HLDGS INC$407,2500.00%4,500CommonSOLE
63008G203NNDMNANO DIMENSION LTD$405,4700.00%149,070CommonSOLE
64107A105NPWRNET POWER INC$330,3880.00%21,880CommonSOLE
03676B102AMANTERO MIDSTREAM CORP$308,1260.00%25,720CommonSOLE
55087P104LYFTLYFT INC$277,7290.00%26,350CommonSOLE
637870106NSANATIONAL STORAGE AFFILIATES$249,4760.00%7,860CommonSOLE
444859102HUMHUMANA INC$234,5030.00%482CommonSOLE

Source: SEC EDGAR · raw 13F holdings as filed. The Class column shows the option type when reported (Put/Call) or Common when the issuer's equity is held directly. 13F discloses long positions only.