13F HOLDINGS REPORT
WESTFIELD CAPITAL MANAGEMENT CO LP
Quarter ended Q3 2023 · Filed August 11, 2023 · Accession 0001085146-23-003305
Total Value
$15.74B
Positions
227
Other Managers
0
Confidential Omitted
No
Holdings (227)
| # | Issuer | Ticker / CUSIP | Shares | Value | % of Filing |
|---|---|---|---|---|---|
| 1 | APPLE INC | AAPL | 2,746,033 | $532.6M | 3.38% |
| 2 | MICROSOFT CORP | MSFT | 1,381,739 | $470.5M | 2.99% |
| 3 | ALPHABET INC | GOOG | 3,389,621 | $405.7M | 2.58% |
| 4 | ICON PLC | ICLR | 1,377,475 | $344.6M | 2.19% |
| 5 | TRANSDIGM GROUP INC | TDG | 363,795 | $325.3M | 2.07% |
| 6 | ASCENDIS PHARMA A/S | ASND | 3,631,712 | $324.1M | 2.06% |
| 7 | AMAZON COM INC | AMZN | 2,418,239 | $315.2M | 2.00% |
| 8 | VISA INC | V | 1,090,906 | $259.1M | 1.65% |
| 9 | NVIDIA CORPORATION | NVDA | 533,850 | $225.8M | 1.43% |
| 10 | BUILDERS FIRSTSOURCE INC | BLDR | 1,642,986 | $223.4M | 1.42% |
| 11 | FORTINET INC | FTNT | 2,856,178 | $215.9M | 1.37% |
| 12 | META PLATFORMS INC | META | 724,503 | $207.9M | 1.32% |
| 13 | UNITEDHEALTH GROUP INC | UNH | 425,707 | $204.6M | 1.30% |
| 14 | CHIPOTLE MEXICAN GRILL INC | CMG | 91,804 | $196.4M | 1.25% |
| 15 | LILLY ELI & CO | LLY | 396,950 | $186.2M | 1.18% |
| 16 | INSPIRE MED SYS INC | 457730109 | 563,667 | $183.0M | 1.16% |
| 17 | SERVICENOW INC | NOW | 311,402 | $175.0M | 1.11% |
| 18 | SAIA INC | SAIA | 506,741 | $173.5M | 1.10% |
| 19 | AMETEK INC | AME | 1,071,812 | $173.5M | 1.10% |
| 20 | HUBSPOT INC | HUBS | 318,938 | $169.7M | 1.08% |
| 21 | MASIMO CORP | MASI | 953,799 | $156.9M | 1.00% |
| 22 | BIO RAD LABS INC | 090572207 | 403,812 | $153.1M | 0.97% |
| 23 | LPL FINL HLDGS INC | 50212V100 | 650,449 | $141.4M | 0.90% |
| 24 | WESCO INTL INC | 95082P105 | 771,137 | $138.1M | 0.88% |
| 25 | SALESFORCE INC | CRM | 643,458 | $135.9M | 0.86% |
| 26 | DEXCOM INC | DXCM | 1,030,514 | $132.4M | 0.84% |
| 27 | FAIR ISAAC CORP | FICO | 160,128 | $129.6M | 0.82% |
| 28 | WILLSCOT MOBIL MINI HLDNG CO | WSC | 2,701,192 | $129.1M | 0.82% |
| 29 | TEXAS ROADHOUSE INC | TXRH | 1,149,641 | $129.1M | 0.82% |
| 30 | TAPESTRY INC | TPR | 2,992,696 | $128.1M | 0.81% |
| 31 | MARVELL TECHNOLOGY INC | MRVL | 2,086,452 | $124.7M | 0.79% |
| 32 | OPTION CARE HEALTH INC | OPCH | 3,768,278 | $122.4M | 0.78% |
| 33 | HOME DEPOT INC | HD | 393,274 | $122.2M | 0.78% |
| 34 | COSTCO WHSL CORP NEW | 22160K105 | 210,882 | $113.5M | 0.72% |
| 35 | INSULET CORP | PODD | 392,339 | $113.1M | 0.72% |
| 36 | LINCOLN ELEC HLDGS INC | 533900106 | 561,720 | $111.6M | 0.71% |
| 37 | NICE LTD | NCSYF | 512,803 | $105.9M | 0.67% |
| 38 | ROCKWELL AUTOMATION INC | ROK | 314,273 | $103.5M | 0.66% |
| 39 | F5 INC | FFIV | 703,360 | $102.9M | 0.65% |
| 40 | HUBBELL INC | HUBB | 310,216 | $102.9M | 0.65% |
| 41 | SMARTSHEET INC | 83200N103 | 2,595,732 | $99.3M | 0.63% |
| 42 | SPLUNK INC | 848637104 | 933,567 | $99.0M | 0.63% |
| 43 | TESLA INC | TSLA | 378,034 | $99.0M | 0.63% |
| 44 | FLYWIRE CORPORATION | FLYW | 3,186,118 | $98.9M | 0.63% |
| 45 | AVANTOR INC | AVTR | 4,729,799 | $97.2M | 0.62% |
| 46 | PROGRESSIVE CORP | 743315103 | 730,502 | $96.7M | 0.61% |
| 47 | LANTHEUS HLDGS INC | LNTH | 1,150,597 | $96.6M | 0.61% |
| 48 | PALO ALTO NETWORKS INC | PANW | 368,318 | $94.1M | 0.60% |
| 49 | DEVON ENERGY CORP NEW | 25179M103 | 1,943,888 | $94.0M | 0.60% |
| 50 | GENPACT LIMITED | G | 2,495,821 | $93.8M | 0.60% |
| 51 | HEXCEL CORP NEW | 428291108 | 1,231,086 | $93.6M | 0.59% |
| 52 | MSCI INC | MSCI | 198,714 | $93.3M | 0.59% |
| 53 | CADENCE DESIGN SYSTEM INC | CDNS | 392,128 | $92.0M | 0.58% |
| 54 | GALLAGHER ARTHUR J & CO | 363576109 | 411,769 | $90.4M | 0.57% |
| 55 | ENCORE WIRE CORP | ECR | 484,373 | $90.1M | 0.57% |
| 56 | CONSTELLATION BRANDS INC | STZ | 361,802 | $89.1M | 0.57% |
| 57 | WORKDAY INC | WDAY | 393,772 | $88.9M | 0.57% |
| 58 | MGM RESORTS INTERNATIONAL | MGM | 2,003,214 | $88.0M | 0.56% |
| 59 | DYNATRACE INC | DT | 1,698,742 | $87.4M | 0.56% |
| 60 | CISCO SYS INC | CSCO | 1,678,528 | $86.8M | 0.55% |
| 61 | VISTEON CORP | VC | 598,544 | $86.0M | 0.55% |
| 62 | TENABLE HLDGS INC | 88025T102 | 1,967,115 | $85.7M | 0.54% |
| 63 | UNION PAC CORP | UNP | 416,147 | $85.2M | 0.54% |
| 64 | DIAGEO PLC | DGEAF | 486,558 | $84.4M | 0.54% |
| 65 | BRP INC | DOO | 986,700 | $83.5M | 0.53% |
| 66 | MICROCHIP TECHNOLOGY INC. | MCHPP | 900,653 | $80.7M | 0.51% |
| 67 | GLOBAL PMTS INC | 37940X102 | 809,275 | $79.7M | 0.51% |
| 68 | DECKERS OUTDOOR CORP | DECK | 149,687 | $79.0M | 0.50% |
| 69 | FIVE BELOW INC | FIVE | 396,562 | $77.9M | 0.50% |
| 70 | CELANESE CORP DEL | CE | 667,215 | $77.3M | 0.49% |
| 71 | COSTAR GROUP INC | CSGP | 863,471 | $76.8M | 0.49% |
| 72 | AVERY DENNISON CORP | AVY | 445,179 | $76.5M | 0.49% |
| 73 | CERIDIAN HCM HLDG INC | 15677J108 | 1,141,756 | $76.5M | 0.49% |
| 74 | WATSCO INC | WSO-B | 199,023 | $75.9M | 0.48% |
| 75 | IDEX CORP | 45167R104 | 350,797 | $75.5M | 0.48% |
| 76 | DIAMONDBACK ENERGY INC | FANG | 571,721 | $75.1M | 0.48% |
| 77 | POOL CORP | POOL | 198,641 | $74.4M | 0.47% |
| 78 | AMERIPRISE FINL INC | 03076C106 | 223,412 | $74.2M | 0.47% |
| 79 | TRANSUNION | TRU | 944,671 | $74.0M | 0.47% |
| 80 | HILTON WORLDWIDE HLDGS INC | HLT | 508,138 | $74.0M | 0.47% |
| 81 | SUN CMNTYS INC | 866674104 | 563,748 | $73.5M | 0.47% |
| 82 | LULULEMON ATHLETICA INC | LULU | 192,813 | $73.0M | 0.46% |
| 83 | ROCKET PHARMACEUTICALS INC | RCKTW | 3,655,787 | $72.6M | 0.46% |
| 84 | RED ROCK RESORTS INC | RRR | 1,551,186 | $72.6M | 0.46% |
| 85 | ALKERMES PLC | ALKS | 2,315,310 | $72.5M | 0.46% |
| 86 | ARES MANAGEMENT CORPORATION | ARES-PB | 750,632 | $72.3M | 0.46% |
| 87 | VULCAN MATLS CO | 929160109 | 320,688 | $72.3M | 0.46% |
| 88 | PPG INDS INC | 693506107 | 466,455 | $69.2M | 0.44% |
| 89 | COOPER COS INC | 216648402 | 179,902 | $69.0M | 0.44% |
| 90 | PAYLOCITY HLDG CORP | PCTY | 372,736 | $68.8M | 0.44% |
| 91 | UBER TECHNOLOGIES INC | UBER | 1,586,966 | $68.5M | 0.44% |
| 92 | LEGEND BIOTECH CORP | LEGN | 972,054 | $67.1M | 0.43% |
| 93 | S&P GLOBAL INC | SPGI | 166,078 | $66.6M | 0.42% |
| 94 | SAREPTA THERAPEUTICS INC | SRPT | 575,782 | $65.9M | 0.42% |
| 95 | IMPINJ INC | PI | 729,889 | $65.4M | 0.42% |
| 96 | IDEXX LABS INC | 45168D104 | 130,079 | $65.3M | 0.42% |
| 97 | HUNT J B TRANS SVCS INC | 445658107 | 351,574 | $63.6M | 0.40% |
| 98 | COPART INC | CPRT | 691,310 | $63.1M | 0.40% |
| 99 | WALMART INC | WMT | 399,987 | $62.9M | 0.40% |
| 100 | ALIGN TECHNOLOGY INC | ALGN | 176,706 | $62.5M | 0.40% |
| 101 | WINGSTOP INC | WING | 307,664 | $61.6M | 0.39% |
| 102 | MONGODB INC | MDB | 148,661 | $61.1M | 0.39% |
| 103 | CDW CORP | CDW | 327,726 | $60.1M | 0.38% |
| 104 | NETAPP INC | NTAP | 781,914 | $59.7M | 0.38% |
| 105 | APPLIED MATLS INC | 038222105 | 405,687 | $58.6M | 0.37% |
| 106 | PTC INC | PTC | 401,095 | $57.1M | 0.36% |
| 107 | WASTE CONNECTIONS INC | WCN | 385,630 | $55.1M | 0.35% |
| 108 | APELLIS PHARMACEUTICALS INC | APLS | 596,232 | $54.3M | 0.35% |
| 109 | TERADYNE INC | TER | 487,320 | $54.3M | 0.34% |
| 110 | LUMENTUM HLDGS INC | LITE | 945,342 | $53.6M | 0.34% |
| 111 | FMC CORP | FMC | 511,805 | $53.4M | 0.34% |
| 112 | OVINTIV INC | OVV | 1,376,035 | $52.4M | 0.33% |
| 113 | ITT INC | ITT | 561,832 | $52.4M | 0.33% |
| 114 | ZSCALER INC | ZS | 355,503 | $52.0M | 0.33% |
| 115 | FLEETCOR TECHNOLOGIES INC | 339041105 | 206,620 | $51.9M | 0.33% |
| 116 | AAON INC | AAON | 541,030 | $51.3M | 0.33% |
| 117 | BRIGHT HORIZONS FAM SOL IN D | 109194100 | 548,660 | $50.7M | 0.32% |
| 118 | APTIV PLC | APTV | 493,001 | $50.3M | 0.32% |
| 119 | CASELLA WASTE SYS INC | CWST | 552,187 | $49.9M | 0.32% |
| 120 | BIO-TECHNE CORP | TECH | 607,141 | $49.6M | 0.31% |
| 121 | AMERICAN INTL GROUP INC | 026874784 | 860,251 | $49.5M | 0.31% |
| 122 | SPIRIT RLTY CAP INC NEW | 84860W300 | 1,236,767 | $48.7M | 0.31% |
| 123 | VAIL RESORTS INC | MTN | 192,928 | $48.6M | 0.31% |
| 124 | ARISTA NETWORKS INC | ANET | 295,786 | $47.9M | 0.30% |
| 125 | AXON ENTERPRISE INC | AXON | 244,843 | $47.8M | 0.30% |
| 126 | BOOZ ALLEN HAMILTON HLDG COR | BAH | 426,876 | $47.6M | 0.30% |
| 127 | PRIMERICA INC | PRI | 235,168 | $46.5M | 0.30% |
| 128 | SHIFT4 PMTS INC | 82452J109 | 674,775 | $45.8M | 0.29% |
| 129 | NORTHERN OIL & GAS INC | NOG | 1,307,658 | $44.9M | 0.29% |
| 130 | KINSALE CAP GROUP INC | 49714P108 | 116,700 | $43.7M | 0.28% |
| 131 | ADVANCED MICRO DEVICES INC | AMD | 375,542 | $42.8M | 0.27% |
| 132 | OKTA INC | OKTA | 610,561 | $42.3M | 0.27% |
| 133 | FIRST CTZNS BANCSHARES INC N | 31946M103 | 32,264 | $41.4M | 0.26% |
| 134 | AXALTA COATING SYS LTD | AXTA | 1,231,136 | $40.4M | 0.26% |
| 135 | MARKETAXESS HLDGS INC | MKTX | 153,852 | $40.2M | 0.26% |
| 136 | MERITAGE HOMES CORP | MTH | 278,113 | $39.6M | 0.25% |
| 137 | CHURCHILL DOWNS INC | CHDN | 283,689 | $39.5M | 0.25% |
| 138 | LIVE NATION ENTERTAINMENT IN | LYV | 428,530 | $39.0M | 0.25% |
| 139 | REPLIGEN CORP | RGEN | 271,005 | $38.3M | 0.24% |
| 140 | CABLE ONE INC | CABO | 57,696 | $37.9M | 0.24% |
| 141 | ESSEX PPTY TR INC | 297178105 | 156,161 | $36.6M | 0.23% |
| 142 | AVIENT CORPORATION | AVNT | 888,522 | $36.3M | 0.23% |
| 143 | SAMSARA INC | IOT | 1,286,486 | $35.6M | 0.23% |
| 144 | NEUROCRINE BIOSCIENCES INC | NBIX | 375,340 | $35.4M | 0.22% |
| 145 | HAEMONETICS CORP MASS | HAE | 408,819 | $34.8M | 0.22% |
| 146 | PURE STORAGE INC | 74624M102 | 928,601 | $34.2M | 0.22% |
| 147 | ETSY INC | ETSY | 377,817 | $32.0M | 0.20% |
| 148 | PLANET FITNESS INC | PLNT | 471,522 | $31.8M | 0.20% |
| 149 | BOX INC | BXCAP | 1,059,557 | $31.1M | 0.20% |
| 150 | UNIVERSAL DISPLAY CORP | OLED | 210,003 | $30.3M | 0.19% |
| 151 | AZENTA INC | AZTA | 644,791 | $30.1M | 0.19% |
| 152 | NEXTIER OILFIELD SOLUTIONS | 65290C105 | 3,339,174 | $29.9M | 0.19% |
| 153 | WNS HLDGS LTD | 92932M101 | 398,871 | $29.4M | 0.19% |
| 154 | VERADIGM INC | 01988P108 | 2,236,112 | $28.2M | 0.18% |
| 155 | WEX INC | WEX | 150,147 | $27.3M | 0.17% |
| 156 | SENTINELONE INC | S | 1,767,167 | $26.7M | 0.17% |
| 157 | CALIX INC | CALX | 531,402 | $26.5M | 0.17% |
| 158 | ONTO INNOVATION INC | ONTO | 226,199 | $26.3M | 0.17% |
| 159 | HALLIBURTON CO | HAL | 777,473 | $25.6M | 0.16% |
| 160 | MACOM TECH SOLUTIONS HLDGS I | 55405Y100 | 391,368 | $25.6M | 0.16% |
| 161 | QUALCOMM INC | QCOM | 215,334 | $25.6M | 0.16% |
| 162 | THERMO FISHER SCIENTIFIC INC | TMO | 48,613 | $25.4M | 0.16% |
| 163 | SENSATA TECHNOLOGIES HLDG PL | ST | 549,387 | $24.7M | 0.16% |
| 164 | INNOVIVA INC | INVA | 1,917,251 | $24.4M | 0.16% |
| 165 | STAG INDL INC | 85254J102 | 653,938 | $23.5M | 0.15% |
| 166 | NEW YORK CMNTY BANCORP INC | 649445103 | 2,021,885 | $22.7M | 0.14% |
| 167 | KULICKE & SOFFA INDS INC | 501242101 | 368,191 | $21.9M | 0.14% |
| 168 | FABRINET | FN | 166,669 | $21.6M | 0.14% |
| 169 | STEPSTONE GROUP INC | STEP | 871,852 | $21.6M | 0.14% |
| 170 | MOONLAKE IMMUNOTHERAPEUTICS | MLTX | 410,119 | $20.9M | 0.13% |
| 171 | BROADCOM INC | AVGO | 24,088 | $20.9M | 0.13% |
| 172 | CHAMPIONX CORPORATION | 15872M104 | 650,105 | $20.2M | 0.13% |
| 173 | PALOMAR HLDGS INC | PLMR | 343,936 | $20.0M | 0.13% |
| 174 | CEREVEL THERAPEUTICS HLDNG I | 15678U128 | 575,534 | $18.3M | 0.12% |
| 175 | NATIONAL VISION HLDGS INC | EYE | 670,232 | $16.3M | 0.10% |
| 176 | 89BIO INC | 282559103 | 835,231 | $15.8M | 0.10% |
| 177 | INTERNATIONAL BUSINESS MACHS | INTR | 84,815 | $11.3M | 0.07% |
| 178 | ALPHABET INC | GOOG | 82,189 | $9.9M | 0.06% |
| 179 | PEPSICO INC | PEP | 51,446 | $9.5M | 0.06% |
| 180 | MERCK & CO INC | MRK | 81,399 | $9.4M | 0.06% |
| 181 | COCA COLA CO | KO | 138,056 | $8.3M | 0.05% |
| 182 | TRANE TECHNOLOGIES PLC | TT | 42,642 | $8.2M | 0.05% |
| 183 | NIKE INC | NKE | 67,714 | $7.5M | 0.05% |
| 184 | GILEAD SCIENCES INC | GILD | 92,751 | $7.1M | 0.05% |
| 185 | DANAHER CORPORATION | 235851102 | 29,294 | $7.0M | 0.04% |
| 186 | METTLER TOLEDO INTERNATIONAL | MTD | 5,318 | $7.0M | 0.04% |
| 187 | TARGET CORP | TGT | 48,178 | $6.4M | 0.04% |
| 188 | HERSHEY CO | HSY | 24,943 | $6.2M | 0.04% |
| 189 | MUELLER INDS INC | 624756102 | 68,960 | $6.0M | 0.04% |
| 190 | CUMMINS INC | CMI | 24,113 | $5.9M | 0.04% |
| 191 | BANK AMERICA CORP | 060505104 | 199,496 | $5.7M | 0.04% |
| 192 | EQUITY LIFESTYLE PPTYS INC | 29472R108 | 84,195 | $5.6M | 0.04% |
| 193 | UNITED PARCEL SERVICE INC | UPS | 30,883 | $5.5M | 0.04% |
| 194 | COGENT COMMUNICATIONS HLDGS | CCOI | 81,687 | $5.5M | 0.03% |
| 195 | CINTAS CORP | CTAS | 10,375 | $5.2M | 0.03% |
| 196 | TRACTOR SUPPLY CO | TSCO | 23,276 | $5.1M | 0.03% |
| 197 | MCDONALDS CORP | MCD | 17,177 | $5.1M | 0.03% |
| 198 | GARTNER INC | IT | 14,370 | $5.0M | 0.03% |
| 199 | ANALOG DEVICES INC | ADI | 25,571 | $5.0M | 0.03% |
| 200 | TIMKEN CO | TKR | 47,820 | $4.4M | 0.03% |
| 201 | RAYMOND JAMES FINL INC | 754730109 | 40,095 | $4.2M | 0.03% |
| 202 | CME GROUP INC | CME | 22,012 | $4.1M | 0.03% |
| 203 | ILLINOIS TOOL WKS INC | 452308109 | 15,982 | $4.0M | 0.03% |
| 204 | CHEVRON CORP NEW | CVX | 23,792 | $3.7M | 0.02% |
| 205 | BHP GROUP LTD | BHPLF | 57,716 | $3.4M | 0.02% |
| 206 | SILGAN HLDGS INC | SLGN | 61,079 | $2.9M | 0.02% |
| 207 | HEICO CORP NEW | HEI-A | 20,130 | $2.8M | 0.02% |
| 208 | TELEDYNE TECHNOLOGIES INC | TDY | 4,882 | $2.0M | 0.01% |
| 209 | RANPAK HOLDINGS CORP | PACK | 402,200 | $1.8M | 0.01% |
| 210 | SILICON MOTION TECHNOLOGY CO | SIMO | 23,670 | $1.7M | 0.01% |
| 211 | CHEESECAKE FACTORY INC | CAKE | 41,072 | $1.4M | 0.01% |
| 212 | CSX CORP | CSX | 28,590 | $974,919 | 0.01% |
| 213 | KARUNA THERAPEUTICS INC | 48576A100 | 4,420 | $958,477 | 0.01% |
| 214 | WILLIAMS COS INC | 969457100 | 23,330 | $761,258 | 0.00% |
| 215 | AZEK CO INC | 05478C105 | 22,510 | $681,828 | 0.00% |
| 216 | TRUIST FINL CORP | 89832Q109 | 21,720 | $659,202 | 0.00% |
| 217 | EMCOR GROUP INC | EME | 3,540 | $654,121 | 0.00% |
| 218 | INTUIT | INTU | 1,410 | $646,048 | 0.00% |
| 219 | CONOCOPHILLIPS | COP | 6,040 | $625,804 | 0.00% |
| 220 | BOOKING HOLDINGS INC | BKNG | 210 | $567,069 | 0.00% |
| 221 | TERRENO RLTY CORP | 88146M101 | 8,840 | $531,284 | 0.00% |
| 222 | AMERICAN FINL GROUP INC OHIO | 025932104 | 4,242 | $503,738 | 0.00% |
| 223 | EZCORP INC | EZPW | 59,780 | $500,956 | 0.00% |
| 224 | FLOOR & DECOR HLDGS INC | FND | 4,500 | $467,820 | 0.00% |
| 225 | OLD DOMINION FREIGHT LINE IN | ODFL | 1,249 | $461,818 | 0.00% |
| 226 | NANO DIMENSION LTD | NNDM | 149,070 | $430,812 | 0.00% |
| 227 | NATIONAL STORAGE AFFILIATES | NSA-PB | 7,860 | $273,764 | 0.00% |