Fund Holdings — WESTFIELD CAPITAL MANAGEMENT CO LP

Total Portfolio Value
$24.01B
Total Bought
$4.21B
Total Sold
$3.86B
Net Transaction
+$349.74M
Filing Period:
Securities
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SharesValue ($K)
Q3 2025
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Q4 2025
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Change
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Q3 2025
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Q4 2025
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Weight (%)
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Change
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ABIVAX SA(ABVX)01,009,966+1,009,9660136,1990.57%+136,199
ALPHABET INC(GOOG)2,244,6502,178,478-66,172545,674681,8642.84%+136,189
API GROUP CORP(APG)03,453,355+3,453,3550132,1250.55%+132,125
AMETEK INC358,660900,216+541,55667,428184,8230.77%+117,395
REVOLUTION MEDICINES INC(RVMD)2,513,9672,845,013+331,046117,402226,6050.94%+109,203
DUTCH BROS INC(BROS)01,779,616+1,779,6160108,9480.45%+108,948
FTAI AVIATION LTD(FTAI)2,130,2412,350,625+220,384355,452462,7211.93%+107,269
FIFTH THIRD BANCORP(FITB)1,619,9483,746,926+2,126,97872,169175,3940.73%+103,225
MKS INC.(MKSI)323,364839,773+516,40940,023134,1960.56%+94,173
ABBVIE INC(ABBV)7,928419,784+411,8561,83695,9160.40%+94,081
ELI LILLY & CO(LLY)277,005277,549+544211,355298,2771.24%+86,922
ATLASSIAN CORPORATION322,438812,215+489,77751,493131,6920.55%+80,199
HUBSPOT INC(HUBS)134,175352,154+217,97962,767141,3190.59%+78,552
GENEDX HOLDINGS CORP(WGS)544,0941,018,261+474,16758,621132,4350.55%+73,814
DANAHER CORPORATION(DHR)4,953321,487+316,53498273,5950.31%+72,613
NATERA INC(NTRA)575,802714,692+138,89092,687163,7290.68%+71,042
CELSIUS HLDGS INC(CELH)01,544,215+1,544,215070,6320.29%+70,632
LEGENCE CORP(LGN)01,613,326+1,613,326069,4380.29%+69,438
GARMIN LTD(GRMN)0335,744+335,744068,1060.28%+68,106
F5 INC(FFIV)16,220281,299+265,0795,24271,8040.30%+66,562
ADAPTIVE BIOTECHNOLOGIES COR(ADPT)04,060,481+4,060,481065,9420.27%+65,942
ROCKET LAB CORP(RKLB)2,437,8202,592,443+154,623116,796180,8490.75%+64,053
ZSCALER INC(ZS)0280,807+280,807063,1590.26%+63,159
HOWMET AEROSPACE INC(HWM)2,007,4532,219,125+211,672393,922454,9651.90%+61,043
MOODYS CORP(MCO)0118,321+118,321060,4440.25%+60,444
ASCENDIS PHARMA A/S(ASND)5,259,9095,185,696-74,2131,045,7231,105,7984.61%+60,075
PACKAGING CORP AMER(PKG)0284,914+284,914058,7580.24%+58,758
BIO-TECHNE CORP(TECH)0994,330+994,330058,4770.24%+58,477
DORMAN PRODS INC(DORM)0462,212+462,212056,9400.24%+56,940
GUARDANT HEALTH INC(GH)0539,190+539,190055,0730.23%+55,073
ADVANCED MICRO DEVICES INC(AMD)0250,455+250,455053,6370.22%+53,637
ADMA BIOLOGICS INC5,106,8026,992,907+1,886,10574,866127,5510.53%+52,685
HAMILTON LANE INC(HLNE)0363,487+363,487048,8200.20%+48,820
INSULET CORP(PODD)201,387386,468+185,08162,174109,8500.46%+47,676
SALESFORCE INC(CRM)0178,508+178,508047,2890.20%+47,289
PARKER-HANNIFIN CORP(PH)7,17257,873+50,7015,43750,8680.21%+45,431
HILTON WORLDWIDE HLDGS INC(HLT)233,718357,721+124,00360,636102,7550.43%+42,120
APPLE INC(AAPL)3,334,5453,274,318-60,227849,075890,1563.71%+41,081
PERMIAN RESOURCES CORP(PR)3,357,7165,951,186+2,593,47042,97983,4950.35%+40,516
IDEXX LABS INC(IDXX)94,129147,447+53,31860,13899,7520.42%+39,614
TRANE TECHNOLOGIES PLC(TT)15,916118,163+102,2476,71645,9890.19%+39,273
EAST WEST BANCORP INC(EWBC)589,535874,152+284,61762,75698,2460.41%+35,490
BURLINGTON STORES INC(BURL)205,895302,307+96,41252,40087,3220.36%+34,921
AVIDITY BIOSCIENCES INC0471,127+471,127033,9820.14%+33,982
IMAX CORP1,622,6252,346,486+723,86153,14186,7260.36%+33,585
LPL FINL HLDGS INC(LPLA)575,462625,562+50,100191,450223,4320.93%+31,981
VERTIV HOLDINGS CO(VRT)2,247,2182,277,716+30,498339,015369,0131.54%+29,997
VAXCYTE INC(PCVX)3,732,7153,539,717-192,998134,452163,3230.68%+28,870
TECHNIPFMC PLC(FTI)1,480,1101,952,427+472,31758,39087,0000.36%+28,610
TESLA INC(TSLA)404,220461,675+57,455179,765207,6240.86%+27,859
RHYTHM PHARMACEUTICALS INC(RYTM)1,069,0041,267,158+198,154107,959135,6370.57%+27,678
IONQ INC(IONQ)367,6671,114,665+746,99822,61250,0150.21%+27,403
FABRINET(FN)163,002190,170+27,16859,43486,5810.36%+27,147
PALOMAR HLDGS INC(PLMR)738,528840,226+101,69886,223113,2290.47%+27,006
FAIR ISAAC CORP(FICO)32,46844,593+12,12548,58975,3900.31%+26,800
SILICON LABORATORIES INC(SLAB)342,310547,403+205,09344,88771,5460.30%+26,658
APPLIED DIGITAL CORP01,034,397+1,034,397025,3630.11%+25,363
GLOBE LIFE INC430,642608,813+178,17161,56985,1490.35%+23,580
HUNT J B TRANS SVCS INC(JBHT)296,843318,165+21,32239,82761,8320.26%+22,005
ARES MANAGEMENT CORPORATION(ARES)1,027,5891,151,200+123,611164,301186,0680.78%+21,767
RIGETTI COMPUTING INC(RGTI)0935,778+935,778020,7270.09%+20,727
MSCI INC(MSCI)175,347207,792+32,44599,493119,2160.50%+19,723
ROCKWELL AUTOMATION INC(ROK)204,335233,795+29,46071,42190,9630.38%+19,541
FIRSTCASH HOLDINGS INC(FCFS)422,455537,734+115,27966,92585,7040.36%+18,779
CALIX INC(CALX)684,0961,145,292+461,19641,98360,6200.25%+18,637
TOPBUILD CORP225,029255,451+30,42287,955106,5720.44%+18,617
ALKAMI TECHNOLOGY INC(ALKT)3,095,0584,118,355+1,023,29776,88195,0100.40%+18,129
WINTRUST FINL CORP(WTFC)456,964559,762+102,79860,52078,2660.33%+17,746
JABIL INC(JBL)266,147328,412+62,26557,79974,8850.31%+17,085
C H ROBINSON WORLDWIDE INC(CHRW)550,825556,472+5,64772,92989,4580.37%+16,529
ROYAL CARIBBEAN GROUP
COM
336,512448,653+112,141108,889125,1380.52%+16,250
HEALTHEQUITY INC(HQY)1,716,6581,952,452+235,794162,688178,8640.75%+16,176
ONTO INNOVATION INC(ONTO)474,530483,082+8,55261,31976,2590.32%+14,941
LINCOLN ELEC HLDGS INC(LECO)282,963337,725+54,76266,73180,9320.34%+14,201
QUANTA SVCS INC245,506273,528+28,022101,743115,4450.48%+13,703
BRAZE INC(BRZE)2,177,9532,187,275+9,32261,94175,0020.31%+13,061
SNOWFLAKE INC(SNOW)574,955649,105+74,150129,681142,3880.59%+12,707
AFFIRM HLDGS INC(AFRM)701,607851,834+150,22751,27363,4020.26%+12,129
APPLIED INDL TECHNOLOGIES IN(AIT)234,734285,290+50,55661,27773,2540.31%+11,977
VITA COCO CO INC(COCO)1,062,7611,073,610+10,84945,13556,9120.24%+11,777
OPTION CARE HEALTH INC(OPCH)2,757,8582,765,305+7,44776,55888,1030.37%+11,544
ISHARES TR066,532+66,532011,1730.05%+11,173
BANK AMERICA CORP3,861,1033,823,609-37,494199,194210,2990.88%+11,104
MONGODB INC(MDB)181,314159,529-21,78556,27666,9530.28%+10,676
ROKU INC(ROKU)1,102,4881,112,478+9,990110,392120,6930.50%+10,301
DESCARTES SYS GROUP INC(DSGX)1,001,3311,193,869+192,53894,355104,6550.44%+10,299
XPO INC(XPO)694,714724,214+29,50089,80698,4280.41%+8,622
CUMMINS INC(CMI)015,274+15,27407,7970.03%+7,797
DIAMONDBACK ENERGY INC(FANG)319,664354,655+34,99145,74453,3150.22%+7,571
TOAST INC(TOST)1,034,3051,268,337+234,03237,76245,0390.19%+7,276
PALO ALTO NETWORKS INC(PANW)370,359448,460+78,10175,41282,6060.34%+7,194
HOULIHAN LOKEY INC(HLI)406,306520,002+113,69683,42390,5790.38%+7,156
JOHNSON & JOHNSON(JNJ)033,288+33,28806,8890.03%+6,889
CASELLA WASTE SYS INC(CWST)1,647,9071,665,226+17,319156,353163,0920.68%+6,739
IDEX CORP(IEX)398,283401,998+3,71564,82571,5320.30%+6,707
XENON PHARMACEUTICALS INC(XENE)1,206,0661,226,771+20,70548,42454,9840.23%+6,560
SAIA INC(SAIA)227,908228,751+84368,22774,6920.31%+6,465
BIO RAD LABS INC155,524165,107+9,58343,60750,0260.21%+6,418
BANCO BILBAO VIZCAYA ARGENTA(BBVA)0266,816+266,81606,2190.03%+6,219
ISHARES TR013,058+13,05806,1810.03%+6,181
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WESTFIELD CAPITAL MANAGEMENT CO LP — 13F Holdings — Q4 2025 | TickerTrail