WESTFIELD CAPITAL MANAGEMENT CO LP Q1 2018 Filing
Filed May 14, 2018
Portfolio Value
$13.0B
Holdings
248
Report Date
Q1 2018
Filing Type
13F-HR
All Holdings (248 positions)
| # | Stock | Shares | Value | % Portfolio | Type |
|---|---|---|---|---|---|
| 101 | PXDEURPIONEER NAT RES CO | 255,880 | $44.0B | 338.76% | |
| 102 | —ELDORADO RESORTS INC | 1,326,214 | $43.8B | 337.29% | |
| 103 | ZEN1EURZENDESK INC | 911,770 | $43.6B | 336.37% | |
| 104 | LPLALPL FINL HLDGS INC | 709,387 | $43.3B | 333.88% | |
| 105 | NXSTNEXSTAR MEDIA GROUP INC | 641,638 | $42.7B | 328.84% | |
| 106 | PFPTPROOFPOINT INC | 374,970 | $42.6B | 328.43% | |
| 107 | IARTINTEGRA LIFESCIENCES HLDGS C | 754,066 | $41.7B | 321.61% | |
| 108 | ADSKAUTODESK INC | 330,780 | $41.5B | 320.14% | |
| 109 | MCHPMICROCHIP TECHNOLOGY INC | 451,160 | $41.2B | 317.66% | |
| 110 | AREALEXANDRIA REAL ESTATE EQ IN | 327,050 | $40.8B | 314.79% | |
| 111 | CR1USDCRANE CO | 413,885 | $38.4B | 295.82% | |
| 112 | DGXQUEST DIAGNOSTICS INC | 380,646 | $38.2B | 294.24% | |
| 113 | BURLBURLINGTON STORES INC | 284,146 | $37.8B | 291.58% | |
| 114 | BYDBOYD GAMING CORP | 1,182,545 | $37.7B | 290.36% | |
| 115 | IBPINSTALLED BLDG PRODS INC | 621,758 | $37.3B | 287.75% | |
| 116 | ZTSZOETIS INC | 437,560 | $36.5B | 281.62% | |
| 117 | PVHPVH CORP | 239,370 | $36.2B | 279.36% | |
| 118 | TIFEURTIFFANY & CO NEW | 369,645 | $36.1B | 278.22% | |
| 119 | —MILACRON HLDGS CORP | 1,786,145 | $36.0B | 277.24% | |
| 120 | PANWPALO ALTO NETWORKS INC | 198,139 | $36.0B | 277.18% | |
| 121 | FLIRFLIR SYS INC | 714,365 | $35.7B | 275.33% | |
| 122 | —ENVISION HEALTHCARE CORP | 920,425 | $35.4B | 272.61% | |
| 123 | AOSSMITH A O | 551,375 | $35.1B | 270.22% | |
| 124 | RJFRAYMOND JAMES FINANCIAL INC | 391,554 | $35.0B | 269.81% | |
| 125 | ADIANALOG DEVICES INC | 377,485 | $34.4B | 265.12% | |
| 126 | BLDRBUILDERS FIRSTSOURCE INC | 1,685,969 | $33.5B | 257.79% | |
| 127 | RUSHARUSH ENTERPRISES INC | 777,386 | $33.0B | 254.57% | |
| 128 | RHIROBERT HALF INTL INC | 567,625 | $32.9B | 253.25% | |
| 129 | OECORION ENGINEERED CARBONS S A | 1,208,815 | $32.8B | 252.47% | |
| 130 | GRA1EURGRACE W R & CO DEL NEW | 531,185 | $32.5B | 250.66% | |
| 131 | FANGDIAMONDBACK ENERGY INC | 256,300 | $32.4B | 249.91% | |
| 132 | MSGSMADISON SQUARE GARDEN CO NEW | 131,764 | $32.4B | 249.61% | |
| 133 | BKIEURBLACK KNIGHT INC | 683,705 | $32.2B | 248.18% | |
| 134 | RRYDER SYS INC | 440,450 | $32.1B | 247.08% | |
| 135 | —ULTIMATE SOFTWARE GROUP INC | 131,201 | $32.0B | 246.42% | |
| 136 | VMCVULCAN MATLS CO | 279,029 | $31.9B | 245.52% | |
| 137 | VYXNCR CORP NEW | 1,009,183 | $31.8B | 245.15% | |
| 138 | —TRINSEO S A | 426,345 | $31.6B | 243.31% | |
| 139 | NEWREURNEW RELIC INC | 416,666 | $30.9B | 238.01% | |
| 140 | EWBCEAST WEST BANCORP INC | 482,735 | $30.2B | 232.67% | |
| 141 | SUISUN CMNTYS INC | 330,104 | $30.2B | 232.45% | |
| 142 | ROKROCKWELL AUTOMATION INC | 172,825 | $30.1B | 232.02% | |
| 143 | FULFULLER H B CO | 595,855 | $29.6B | 228.37% | |
| 144 | VISNCOMMSCOPE HLDG CO INC | 733,920 | $29.3B | 226.08% | |
| 145 | DATATABLEAU SOFTWARE INC | 361,005 | $29.2B | 224.86% | |
| 146 | CLVSEURCLOVIS ONCOLOGY INC | 550,315 | $29.1B | 223.94% | |
| 147 | LF2PACIFIC PREMIER BANCORP | 719,737 | $28.9B | 222.98% | |
| 148 | WNSNWNS HOLDINGS LTD | 621,625 | $28.2B | 217.16% | |
| 149 | EATBRINKER INTL INC | 777,080 | $28.1B | 216.20% | |
| 150 | ITGARTNER INC | 238,155 | $28.0B | 215.88% | |
| 151 | COHREURCOHERENT INC | 147,263 | $27.6B | 212.69% | |
| 152 | PTCPTC INC | 350,731 | $27.4B | 210.87% | |
| 153 | AEOAMERICAN EAGLE OUTFITTERS NE | 1,348,875 | $26.9B | 207.18% | |
| 154 | ZAYOEURZAYO GROUP HLDGS INC | 786,094 | $26.9B | 206.95% | |
| 155 | BFAMBRIGHT HORIZONS FAM SOL IN D | 267,723 | $26.7B | 205.75% | |
| 156 | ALXNALEXION PHARMACEUTICALS INC | 239,080 | $26.6B | 205.37% | |
| 157 | —INTERXION HOLDING N.V | 420,656 | $26.1B | 201.36% | |
| 158 | PCRXPACIRA PHARMACEUTICALS INC | 834,282 | $26.0B | 200.29% | |
| 159 | WSOWATSCO INC | 142,195 | $25.7B | 198.32% | |
| 160 | ODFLOLD DOMINION FGHT LINES INC | 173,903 | $25.6B | 196.98% | |
| 161 | OMCLOMNICELL INC | 583,699 | $25.3B | 195.24% | |
| 162 | MRCYMERCURY SYS INC | 520,135 | $25.1B | 193.70% | |
| 163 | TXRHTEXAS ROADHOUSE INC | 426,723 | $24.7B | 190.02% | |
| 164 | EXPEEXPEDIA GROUP INC | 220,454 | $24.3B | 187.58% | |
| 165 | CVLTCOMMVAULT SYSTEMS INC | 423,587 | $24.2B | 186.73% | |
| 166 | —CYPRESS SEMICONDUCTOR CORP | 1,352,740 | $22.9B | 176.81% | |
| 167 | —INTEGRATED DEVICE TECHNOLOGY | 742,075 | $22.7B | 174.78% | |
| 168 | MTZMASTEC INC | 480,290 | $22.6B | 174.16% | |
| 169 | BIDSOTHEBYS | 440,200 | $22.6B | 174.07% | |
| 170 | —CYRUSONE INC | 431,838 | $22.1B | 170.43% | |
| 171 | CIENCIENA CORP | 851,286 | $22.0B | 169.92% | |
| 172 | —BOTTOMLINE TECH DEL INC | 565,782 | $21.9B | 168.97% | |
| 173 | NTAPNETAPP INC | 353,650 | $21.8B | 168.14% | |
| 174 | 4DHDANA INCORPORATED | 846,816 | $21.8B | 168.12% | |
| 175 | —AVEXIS INC | 174,810 | $21.6B | 166.49% | |
| 176 | PRTY1EURPARTY CITY HOLDCO INC | 1,320,060 | $20.6B | 158.71% | |
| 177 | HEIHEICO CORP NEW | 288,400 | $20.5B | 157.70% | |
| 178 | CPTCAMDEN PPTY TR | 238,200 | $20.1B | 154.54% | |
| 179 | —WRIGHT MED GROUP N V | 974,251 | $19.3B | 148.97% | |
| 180 | MTGMGIC INVT CORP WIS | 1,463,780 | $19.0B | 146.65% | |
| 181 | FNDFLOOR & DECOR HLDGS INC | 364,515 | $19.0B | 146.42% | |
| 182 | —BMC STK HLDGS INC | 970,892 | $19.0B | 146.28% | |
| 183 | —QTS RLTY TR INC | 504,745 | $18.3B | 140.90% | |
| 184 | MKSIMKS INSTRUMENT INC | 155,116 | $17.9B | 138.25% | |
| 185 | ILPTINDUSTRIAL LOGISTICS PPTYS T | 879,075 | $17.9B | 137.80% | |
| 186 | PNFPPINNACLE FINL PARTNERS INC | 273,545 | $17.6B | 135.35% | |
| 187 | LADLITHIA MTRS INC | 174,149 | $17.5B | 134.91% | |
| 188 | STAGSTAG INDL INC | 713,168 | $17.1B | 131.47% | |
| 189 | CHGGCHEGG INC | 750,825 | $15.5B | 119.55% | |
| 190 | UCTTULTRA CLEAN HLDGS INC | 805,616 | $15.5B | 119.52% | |
| 191 | LITELUMENTUM HLDGS INC | 242,531 | $15.5B | 119.25% | |
| 192 | —RESOLUTE ENERGY CORP | 363,855 | $12.6B | 97.17% | |
| 193 | ACRSACLARIS THERAPEUTICS INC | 710,369 | $12.4B | 95.92% | |
| 194 | MPWRMONOLITHIC PWR SYS INC | 106,434 | $12.3B | 94.96% | |
| 195 | EYENATIONAL VISION HLDGS INC | 365,730 | $11.8B | 91.07% | |
| 196 | —WPX ENERGY INC | 781,170 | $11.5B | 88.98% | |
| 197 | SCSANTANDER CONSUMER USA HDG I | 705,100 | $11.5B | 88.57% | |
| 198 | PRTAPROTHENA CORP PLC | 309,819 | $11.4B | 87.65% | |
| 199 | HLNEHAMILTON LANE INC | 272,460 | $10.1B | 78.18% | |
| 200 | NVCRNOVOCURE LTD | 456,035 | $9.9B | 76.62% |