13F HOLDINGS REPORT
WESTFIELD CAPITAL MANAGEMENT CO LP
Quarter ended Q2 2023 · Filed May 12, 2023 · Accession 0001085146-23-002316
Total Value
$14.15B
Positions
222
Other Managers
0
Confidential Omitted
No
Holdings (222)
| # | Issuer | Ticker / CUSIP | Shares | Value | % of Filing |
|---|---|---|---|---|---|
| 1 | APPLE INC | AAPL | 2,950,247 | $486.5M | 3.44% |
| 2 | MICROSOFT CORP | MSFT | 1,397,216 | $402.8M | 2.85% |
| 3 | ASCENDIS PHARMA A/S | ASND | 3,146,126 | $337.3M | 2.38% |
| 4 | ALPHABET INC | GOOG | 3,159,901 | $327.8M | 2.32% |
| 5 | ICON PLC | ICLR | 1,365,572 | $291.7M | 2.06% |
| 6 | TRANSDIGM GROUP INC | TDG | 371,149 | $273.6M | 1.93% |
| 7 | VISA INC | V | 1,040,932 | $234.7M | 1.66% |
| 8 | UNITEDHEALTH GROUP INC | UNH | 442,368 | $209.1M | 1.48% |
| 9 | AMAZON COM INC | AMZN | 1,920,247 | $198.3M | 1.40% |
| 10 | CHIPOTLE MEXICAN GRILL INC | CMG | 112,073 | $191.5M | 1.35% |
| 11 | BIO RAD LABS INC | 090572207 | 385,656 | $184.7M | 1.31% |
| 12 | FORTINET INC | FTNT | 2,748,726 | $182.7M | 1.29% |
| 13 | DEXCOM INC | DXCM | 1,570,495 | $182.5M | 1.29% |
| 14 | AMETEK INC | AME | 1,096,844 | $159.4M | 1.13% |
| 15 | SERVICENOW INC | NOW | 317,289 | $147.5M | 1.04% |
| 16 | HUBSPOT INC | HUBS | 339,816 | $145.7M | 1.03% |
| 17 | WESCO INTL INC | 95082P105 | 936,287 | $144.7M | 1.02% |
| 18 | ENCORE WIRE CORP | ECR | 751,887 | $139.3M | 0.98% |
| 19 | SAIA INC | SAIA | 501,669 | $136.5M | 0.96% |
| 20 | LILLY ELI & CO | LLY | 387,564 | $133.1M | 0.94% |
| 21 | NVIDIA CORPORATION | NVDA | 473,804 | $131.6M | 0.93% |
| 22 | SALESFORCE INC | CRM | 655,883 | $131.0M | 0.93% |
| 23 | TELEDYNE TECHNOLOGIES INC | TDY | 288,236 | $128.9M | 0.91% |
| 24 | HOME DEPOT INC | HD | 432,015 | $127.5M | 0.90% |
| 25 | LULULEMON ATHLETICA INC | LULU | 344,954 | $125.6M | 0.89% |
| 26 | TAPESTRY INC | TPR | 2,880,707 | $124.2M | 0.88% |
| 27 | PROGRESSIVE CORP | 743315103 | 847,730 | $121.3M | 0.86% |
| 28 | LPL FINL HLDGS INC | 50212V100 | 593,157 | $120.1M | 0.85% |
| 29 | MARVELL TECHNOLOGY INC | MRVL | 2,755,714 | $119.3M | 0.84% |
| 30 | TESLA INC | TSLA | 552,966 | $114.7M | 0.81% |
| 31 | WILLSCOT MOBIL MINI HLDNG CO | WSC | 2,402,408 | $112.6M | 0.80% |
| 32 | SAREPTA THERAPEUTICS INC | SRPT | 802,658 | $110.6M | 0.78% |
| 33 | INSULET CORP | PODD | 342,453 | $109.2M | 0.77% |
| 34 | PALO ALTO NETWORKS INC | PANW | 538,434 | $107.5M | 0.76% |
| 35 | COSTCO WHSL CORP NEW | 22160K105 | 215,399 | $107.0M | 0.76% |
| 36 | MGM RESORTS INTERNATIONAL | MGM | 2,283,287 | $101.4M | 0.72% |
| 37 | GENPACT LIMITED | G | 2,187,011 | $101.1M | 0.71% |
| 38 | HILTON WORLDWIDE HLDGS INC | HLT | 716,923 | $101.0M | 0.71% |
| 39 | ALKERMES PLC | ALKS | 3,574,468 | $100.8M | 0.71% |
| 40 | ATKORE INC | ATKR | 704,771 | $99.0M | 0.70% |
| 41 | INSPIRE MED SYS INC | 457730109 | 422,648 | $98.9M | 0.70% |
| 42 | DEVON ENERGY CORP NEW | 25179M103 | 1,933,809 | $97.9M | 0.69% |
| 43 | GALLAGHER ARTHUR J & CO | 363576109 | 509,686 | $97.5M | 0.69% |
| 44 | AVANTOR INC | AVTR | 4,574,442 | $96.7M | 0.68% |
| 45 | NICE LTD | NCSYF | 418,913 | $95.9M | 0.68% |
| 46 | ROCKWELL AUTOMATION INC | ROK | 322,262 | $94.6M | 0.67% |
| 47 | LINCOLN ELEC HLDGS INC | 533900106 | 558,140 | $94.4M | 0.67% |
| 48 | MSCI INC | MSCI | 167,326 | $93.7M | 0.66% |
| 49 | LANTHEUS HLDGS INC | LNTH | 1,101,298 | $90.9M | 0.64% |
| 50 | MONGODB INC | MDB | 383,859 | $89.5M | 0.63% |
| 51 | DIAGEO PLC | DGEAF | 493,052 | $89.3M | 0.63% |
| 52 | UNION PAC CORP | UNP | 437,015 | $88.0M | 0.62% |
| 53 | DIAMONDBACK ENERGY INC | FANG | 650,680 | $88.0M | 0.62% |
| 54 | THERMO FISHER SCIENTIFIC INC | TMO | 150,010 | $86.5M | 0.61% |
| 55 | TENABLE HLDGS INC | 88025T102 | 1,793,918 | $85.2M | 0.60% |
| 56 | VISTEON CORP | VC | 539,775 | $84.7M | 0.60% |
| 57 | WORKDAY INC | WDAY | 402,327 | $83.1M | 0.59% |
| 58 | GLOBAL PMTS INC | 37940X102 | 778,487 | $81.9M | 0.58% |
| 59 | CADENCE DESIGN SYSTEM INC | CDNS | 384,709 | $80.8M | 0.57% |
| 60 | CERIDIAN HCM HLDG INC | 15677J108 | 1,102,962 | $80.8M | 0.57% |
| 61 | META PLATFORMS INC | META | 379,470 | $80.4M | 0.57% |
| 62 | MICROCHIP TECHNOLOGY INC. | MCHPP | 913,958 | $76.6M | 0.54% |
| 63 | ARES MANAGEMENT CORPORATION | ARES-PB | 897,772 | $74.9M | 0.53% |
| 64 | FIVE BELOW INC | FIVE | 358,366 | $73.8M | 0.52% |
| 65 | VULCAN MATLS CO | 929160109 | 429,518 | $73.7M | 0.52% |
| 66 | PROMETHEUS BIOSCIENCES INC | 74349U108 | 684,694 | $73.5M | 0.52% |
| 67 | IDEX CORP | 45167R104 | 317,218 | $73.3M | 0.52% |
| 68 | CISCO SYS INC | CSCO | 1,391,223 | $72.7M | 0.51% |
| 69 | SUN CMNTYS INC | 866674104 | 506,307 | $71.3M | 0.50% |
| 70 | DECKERS OUTDOOR CORP | DECK | 157,691 | $70.9M | 0.50% |
| 71 | CELANESE CORP DEL | CE | 648,311 | $70.6M | 0.50% |
| 72 | PAYPAL HLDGS INC | PYPL | 928,183 | $70.5M | 0.50% |
| 73 | BRP INC | DOO | 895,691 | $70.0M | 0.49% |
| 74 | COPART INC | CPRT | 921,737 | $69.3M | 0.49% |
| 75 | COOPER COS INC | 216648402 | 185,078 | $69.1M | 0.49% |
| 76 | SPLUNK INC | 848637104 | 712,163 | $68.3M | 0.48% |
| 77 | SMARTSHEET INC | 83200N103 | 1,402,413 | $67.0M | 0.47% |
| 78 | IDEXX LABS INC | 45168D104 | 132,923 | $66.5M | 0.47% |
| 79 | POOL CORP | POOL | 191,930 | $65.7M | 0.46% |
| 80 | BUILDERS FIRSTSOURCE INC | BLDR | 731,158 | $64.9M | 0.46% |
| 81 | ATLASSIAN CORPORATION | TEAM | 377,114 | $64.6M | 0.46% |
| 82 | AVERY DENNISON CORP | AVY | 356,614 | $63.8M | 0.45% |
| 83 | OKTA INC | OKTA | 738,464 | $63.7M | 0.45% |
| 84 | CDW CORP | CDW | 324,618 | $63.3M | 0.45% |
| 85 | CHEESECAKE FACTORY INC | CAKE | 1,802,750 | $63.2M | 0.45% |
| 86 | HUNT J B TRANS SVCS INC | 445658107 | 359,642 | $63.1M | 0.45% |
| 87 | NIKE INC | NKE | 514,511 | $63.1M | 0.45% |
| 88 | F5 INC | FFIV | 430,884 | $62.8M | 0.44% |
| 89 | ITT INC | ITT | 725,904 | $62.6M | 0.44% |
| 90 | RED ROCK RESORTS INC | RRR | 1,392,106 | $62.0M | 0.44% |
| 91 | NETAPP INC | NTAP | 963,760 | $61.5M | 0.43% |
| 92 | COSTAR GROUP INC | CSGP | 881,777 | $60.7M | 0.43% |
| 93 | FAIR ISAAC CORP | FICO | 85,892 | $60.4M | 0.43% |
| 94 | PAYLOCITY HLDG CORP | PCTY | 296,842 | $59.0M | 0.42% |
| 95 | EPAM SYS INC | EPAM | 197,043 | $58.9M | 0.42% |
| 96 | CONSTELLATION BRANDS INC | STZ | 259,700 | $58.7M | 0.41% |
| 97 | MARRIOTT INTL INC NEW | 571903202 | 352,423 | $58.5M | 0.41% |
| 98 | CONOCOPHILLIPS | COP | 580,193 | $57.6M | 0.41% |
| 99 | BOOZ ALLEN HAMILTON HLDG COR | BAH | 612,005 | $56.7M | 0.40% |
| 100 | FMC CORP | FMC | 459,929 | $56.2M | 0.40% |
| 101 | ROCKET PHARMACEUTICALS INC | RCKTW | 3,235,908 | $55.4M | 0.39% |
| 102 | APTIV PLC | APTV | 492,078 | $55.2M | 0.39% |
| 103 | WASTE CONNECTIONS INC | WCN | 396,503 | $55.1M | 0.39% |
| 104 | PPG INDS INC | 693506107 | 410,030 | $54.8M | 0.39% |
| 105 | MARKETAXESS HLDGS INC | MKTX | 139,854 | $54.7M | 0.39% |
| 106 | PROCORE TECHNOLOGIES INC | PCOR | 860,705 | $53.9M | 0.38% |
| 107 | SKYWORKS SOLUTIONS INC | SWKS | 454,775 | $53.7M | 0.38% |
| 108 | TRANSUNION | TRU | 849,833 | $52.8M | 0.37% |
| 109 | APELLIS PHARMACEUTICALS INC | APLS | 792,246 | $52.3M | 0.37% |
| 110 | WINGSTOP INC | WING | 282,225 | $51.8M | 0.37% |
| 111 | SHIFT4 PMTS INC | 82452J109 | 681,171 | $51.6M | 0.36% |
| 112 | CATALENT INC | 148806102 | 775,520 | $51.0M | 0.36% |
| 113 | AMERIPRISE FINL INC | 03076C106 | 166,192 | $50.9M | 0.36% |
| 114 | APPLIED MATLS INC | 038222105 | 413,075 | $50.7M | 0.36% |
| 115 | JUNIPER NETWORKS INC | 48203R104 | 1,473,640 | $50.7M | 0.36% |
| 116 | EVEREST RE GROUP LTD | EG | 139,960 | $50.1M | 0.35% |
| 117 | WATSCO INC | WSO-B | 157,199 | $50.0M | 0.35% |
| 118 | CHARTER COMMUNICATIONS INC N | 16119P108 | 131,581 | $47.1M | 0.33% |
| 119 | OPTION CARE HEALTH INC | OPCH | 1,472,182 | $46.8M | 0.33% |
| 120 | VAIL RESORTS INC | MTN | 197,935 | $46.3M | 0.33% |
| 121 | QUEST DIAGNOSTICS INC | DGX | 321,963 | $45.6M | 0.32% |
| 122 | OVINTIV INC | OVV | 1,234,773 | $44.6M | 0.31% |
| 123 | TEXAS ROADHOUSE INC | TXRH | 406,990 | $44.0M | 0.31% |
| 124 | HEXCEL CORP NEW | 428291108 | 636,959 | $43.5M | 0.31% |
| 125 | GLOBANT S A | GLOB | 263,464 | $43.2M | 0.31% |
| 126 | ETSY INC | ETSY | 387,501 | $43.1M | 0.30% |
| 127 | S&P GLOBAL INC | SPGI | 122,136 | $42.1M | 0.30% |
| 128 | AAON INC | AAON | 435,349 | $42.1M | 0.30% |
| 129 | CHURCHILL DOWNS INC | CHDN | 162,366 | $41.7M | 0.29% |
| 130 | LIVE NATION ENTERTAINMENT IN | LYV | 590,055 | $41.3M | 0.29% |
| 131 | NATIONAL VISION HLDGS INC | EYE | 2,192,016 | $41.3M | 0.29% |
| 132 | REPLIGEN CORP | RGEN | 242,604 | $40.8M | 0.29% |
| 133 | SPIRIT RLTY CAP INC NEW | 84860W300 | 961,276 | $38.3M | 0.27% |
| 134 | FLYWIRE CORPORATION | FLYW | 1,299,215 | $38.1M | 0.27% |
| 135 | KINSALE CAP GROUP INC | 49714P108 | 124,036 | $37.2M | 0.26% |
| 136 | PRIMERICA INC | PRI | 214,352 | $36.9M | 0.26% |
| 137 | CABLE ONE INC | CABO | 51,776 | $36.3M | 0.26% |
| 138 | NORTHERN OIL AND GAS INC MN | NOG | 1,196,310 | $36.3M | 0.26% |
| 139 | SYNAPTICS INC | SYNA | 320,878 | $35.7M | 0.25% |
| 140 | SENSATA TECHNOLOGIES HLDG PL | ST | 705,278 | $35.3M | 0.25% |
| 141 | AXALTA COATING SYS LTD | AXTA | 1,132,776 | $34.3M | 0.24% |
| 142 | PDC ENERGY INC | 69327R101 | 529,512 | $34.0M | 0.24% |
| 143 | ESSEX PPTY TR INC | 297178105 | 160,661 | $33.6M | 0.24% |
| 144 | AVIENT CORPORATION | AVNT | 811,610 | $33.4M | 0.24% |
| 145 | CULLEN FROST BANKERS INC | CFR-PB | 302,082 | $31.8M | 0.22% |
| 146 | SAMSARA INC | IOT | 1,605,956 | $31.7M | 0.22% |
| 147 | CASELLA WASTE SYS INC | CWST | 378,667 | $31.3M | 0.22% |
| 148 | HAEMONETICS CORP MASS | HAE | 373,456 | $30.9M | 0.22% |
| 149 | WNS HLDGS LTD | 92932M101 | 324,826 | $30.3M | 0.21% |
| 150 | UNIVERSAL DISPLAY CORP | OLED | 191,005 | $29.6M | 0.21% |
| 151 | FIRST CTZNS BANCSHARES INC N | 31946M103 | 29,539 | $28.7M | 0.20% |
| 152 | PLANET FITNESS INC | PLNT | 350,739 | $27.2M | 0.19% |
| 153 | ENDEAVOR GROUP HLDGS INC | 29260Y109 | 1,133,153 | $27.1M | 0.19% |
| 154 | QUALCOMM INC | QCOM | 212,119 | $27.1M | 0.19% |
| 155 | ONTO INNOVATION INC | ONTO | 302,013 | $26.5M | 0.19% |
| 156 | AZENTA INC | AZTA | 588,650 | $26.3M | 0.19% |
| 157 | BOX INC | BXCAP | 973,699 | $26.1M | 0.18% |
| 158 | NEUROCRINE BIOSCIENCES INC | NBIX | 254,626 | $25.8M | 0.18% |
| 159 | AMEDISYS INC | 023436108 | 342,876 | $25.2M | 0.18% |
| 160 | HALLIBURTON CO | HAL | 796,973 | $25.2M | 0.18% |
| 161 | NEXTIER OILFIELD SOLUTIONS | 65290C105 | 3,046,514 | $24.2M | 0.17% |
| 162 | DYNATRACE INC | DT | 555,595 | $23.5M | 0.17% |
| 163 | MACOM TECH SOLUTIONS HLDGS I | 55405Y100 | 301,339 | $21.3M | 0.15% |
| 164 | WEX INC | WEX | 110,541 | $20.3M | 0.14% |
| 165 | ORACLE CORP | ORCL-PD | 215,781 | $20.1M | 0.14% |
| 166 | STEPSTONE GROUP INC | STEP | 824,858 | $20.0M | 0.14% |
| 167 | INNOVIVA INC | INVA | 1,759,431 | $19.8M | 0.14% |
| 168 | VERADIGM INC | 01988P108 | 1,462,688 | $19.1M | 0.13% |
| 169 | PALOMAR HLDGS INC | PLMR | 317,006 | $17.5M | 0.12% |
| 170 | CHAMPIONX CORPORATION | 15872M104 | 602,799 | $16.4M | 0.12% |
| 171 | BROADCOM INC | AVGO | 23,382 | $15.0M | 0.11% |
| 172 | RANPAK HOLDINGS CORP | PACK | 2,781,628 | $14.5M | 0.10% |
| 173 | ABBVIE INC | ABBV | 83,017 | $13.2M | 0.09% |
| 174 | AMERICAN FINL GROUP INC OHIO | 025932104 | 106,267 | $12.9M | 0.09% |
| 175 | ADVANCED MICRO DEVICES INC | AMD | 120,584 | $11.8M | 0.08% |
| 176 | IVERIC BIO INC | 46583P102 | 476,721 | $11.6M | 0.08% |
| 177 | 89BIO INC | 282559103 | 755,210 | $11.5M | 0.08% |
| 178 | INTERNATIONAL BUSINESS MACHS | INTR | 79,539 | $10.4M | 0.07% |
| 179 | PEPSICO INC | PEP | 48,158 | $8.8M | 0.06% |
| 180 | ALPHABET INC | GOOG | 84,158 | $8.8M | 0.06% |
| 181 | METTLER TOLEDO INTERNATIONAL | MTD | 5,623 | $8.6M | 0.06% |
| 182 | MERCK & CO INC | MRK | 76,509 | $8.1M | 0.06% |
| 183 | COCA COLA CO | KO | 129,140 | $8.0M | 0.06% |
| 184 | DANAHER CORPORATION | 235851102 | 31,107 | $7.8M | 0.06% |
| 185 | TARGET CORP | TGT | 45,103 | $7.5M | 0.05% |
| 186 | TRANE TECHNOLOGIES PLC | TT | 40,140 | $7.4M | 0.05% |
| 187 | GILEAD SCIENCES INC | GILD | 86,760 | $7.2M | 0.05% |
| 188 | HERSHEY CO | HSY | 23,368 | $5.9M | 0.04% |
| 189 | CUMMINS INC | CMI | 24,506 | $5.9M | 0.04% |
| 190 | UNITED PARCEL SERVICE INC | UPS | 28,887 | $5.6M | 0.04% |
| 191 | BLACKROCK INC | BLK | 8,163 | $5.5M | 0.04% |
| 192 | BANK AMERICA CORP | 060505104 | 186,735 | $5.3M | 0.04% |
| 193 | EQUITY LIFESTYLE PPTYS INC | 29472R108 | 78,775 | $5.3M | 0.04% |
| 194 | NEXSTAR MEDIA GROUP INC | NXST | 29,439 | $5.1M | 0.04% |
| 195 | COGENT COMMUNICATIONS HLDGS | CCOI | 76,475 | $4.9M | 0.03% |
| 196 | GARTNER INC | IT | 14,370 | $4.7M | 0.03% |
| 197 | MCDONALDS CORP | MCD | 16,106 | $4.5M | 0.03% |
| 198 | CINTAS CORP | CTAS | 9,719 | $4.5M | 0.03% |
| 199 | AMERICAN INTL GROUP INC | 026874784 | 80,266 | $4.0M | 0.03% |
| 200 | ADVANCED DRAIN SYS INC DEL | 00790R104 | 46,440 | $3.9M | 0.03% |
| 201 | TIMKEN CO | TKR | 47,820 | $3.9M | 0.03% |
| 202 | ILLINOIS TOOL WKS INC | 452308109 | 15,982 | $3.9M | 0.03% |
| 203 | RAYMOND JAMES FINL INC | 754730109 | 40,095 | $3.7M | 0.03% |
| 204 | CHEVRON CORP NEW | CVX | 22,077 | $3.6M | 0.03% |
| 205 | BHP GROUP LTD | BHPLF | 53,221 | $3.4M | 0.02% |
| 206 | ANALOG DEVICES INC | ADI | 15,663 | $3.1M | 0.02% |
| 207 | BRIGHT HORIZONS FAM SOL IN D | 109194100 | 37,450 | $2.9M | 0.02% |
| 208 | HEICO CORP NEW | HEI-A | 20,130 | $2.7M | 0.02% |
| 209 | SILICON MOTION TECHNOLOGY CO | SIMO | 23,670 | $1.6M | 0.01% |
| 210 | CSX CORP | CSX | 28,590 | $855,985 | 0.01% |
| 211 | NEXTRACKER INC | NXT | 22,879 | $829,593 | 0.01% |
| 212 | KARUNA THERAPEUTICS INC | 48576A100 | 4,420 | $802,849 | 0.01% |
| 213 | WILLIAMS COS INC | 969457100 | 23,330 | $696,634 | 0.00% |
| 214 | BLACK KNIGHT INC | 09215C105 | 11,550 | $664,818 | 0.00% |
| 215 | AXON ENTERPRISE INC | AXON | 2,880 | $647,568 | 0.00% |
| 216 | INTUIT | INTU | 1,410 | $628,620 | 0.00% |
| 217 | EMCOR GROUP INC | EME | 3,540 | $575,569 | 0.00% |
| 218 | TERRENO RLTY CORP | 88146M101 | 8,840 | $571,064 | 0.00% |
| 219 | NANO DIMENSION LTD | NNDM | 149,070 | $430,812 | 0.00% |
| 220 | OLD DOMINION FREIGHT LINE IN | ODFL | 1,249 | $425,709 | 0.00% |
| 221 | EZCORP INC | EZPW | 43,780 | $376,508 | 0.00% |
| 222 | NATIONAL STORAGE AFFILIATES | NSA-PB | 7,860 | $328,391 | 0.00% |