WESTFIELD CAPITAL MANAGEMENT CO LP Q3 2019 Filing

Filed November 8, 2019

Portfolio Value

$12.5B

Holdings

234

Report Date

Q3 2019

Filing Type

13F-HR

All Holdings (234 positions)

#StockSharesValue% PortfolioType
101
GWREGUIDEWIRE SOFTWARE INC
406,798$42.9B343.25%
102
VYXNCR CORP NEW
1,352,719$42.7B341.84%
103
7SUSUMMIT MATLS INC
1,848,819$41.0B328.65%
104
DHID R HORTON INC
739,829$39.0B312.25%
105
YUMCYUM CHINA HLDGS INC
844,172$38.4B307.08%
106
WPX ENERGY INC
3,616,070$38.3B306.63%
107
INTERXION HOLDING N.V
465,598$37.9B303.70%
108
RUSHARUSH ENTERPRISES INC
958,754$37.0B296.18%
109
SSNCSS&C TECHNOLOGIES HLDGS INC
711,338$36.7B293.73%
110
VFCV F CORP
412,199$36.7B293.72%
111
SUISUN CMNTYS INC
246,662$36.6B293.20%
112
MSCIMSCI INC
165,191$36.0B288.02%
113
COHREURCOHERENT INC
233,040$35.8B286.84%
114
OECORION ENGINEERED CARBONS S A
2,092,346$35.0B279.95%
115
IACIEURIAC INTERACTIVECORP
159,993$34.9B279.24%
116
CSGPCOSTAR GROUP INC
57,752$34.3B274.31%
117
KNKNOWLES CORP
1,673,052$34.0B272.48%
118
3M4MASIMO CORP
221,445$32.9B263.83%
119
TQJSIGNATURE BK NEW YORK N Y
266,013$31.7B253.94%
120
ROKROCKWELL AUTOMATION INC
190,195$31.3B250.98%
121
FANGDIAMONDBACK ENERGY INC
346,337$31.1B249.33%
122
BURLBURLINGTON STORES INC
154,913$31.0B247.86%
123
HUBSHUBSPOT INC
201,118$30.5B244.15%
124
PFGCPERFORMANCE FOOD GROUP CO
655,537$30.2B241.50%
125
GRA1EURGRACE W R & CO DEL NEW
444,050$29.6B237.37%
126
CRLCHARLES RIV LABS INTL INC
219,658$29.1B232.82%
127
TKRTIMKEN CO
656,689$28.6B228.79%
128
LRCXEURLAM RESEARCH CORP
123,034$28.4B227.68%
129
CABOT MICROELECTRONICS CORP
198,104$28.0B223.99%
130
ENQENTEGRIS INC
575,740$27.1B216.95%
131
FNFFIDELITY NATIONAL FINANCIAL
604,673$26.9B215.02%
132
FIRSTCASH INC
285,922$26.2B209.87%
133
DAYCERIDIAN HCM HLDG INC
530,376$26.2B209.67%
134
PZZAPAPA JOHNS INTL INC
491,420$25.7B205.99%
135
STRASTRATEGIC ED INC
187,466$25.5B203.97%
136
ANETEURARISTA NETWORKS INC
106,420$25.4B203.59%
137
FMCF M C CORP
289,554$25.4B203.29%
138
UI2KEMPER CORP DEL
323,931$25.3B202.18%
139
WNSNWNS HOLDINGS LTD
425,536$25.0B200.18%
140
NGVTINGEVITY CORP
290,874$24.7B197.60%
141
SRPTSAREPTA THERAPEUTICS INC
320,561$24.1B193.33%
142
IARTINTEGRA LIFESCIENCES HLDGS C
395,377$23.8B190.17%
143
NUANEURNUANCE COMMUNICATIONS INC
1,453,242$23.7B189.79%
144
CTLTEURCATALENT INC
488,640$23.3B186.48%
145
BFAMBRIGHT HORIZONS FAM SOL IN D
151,203$23.1B184.63%
146
ODFLOLD DOMINION FREIGHT LINE IN
134,625$22.9B183.22%
147
ALNYALNYLAM PHARMACEUTICALS INC
280,297$22.5B180.49%
148
IRWDIRONWOOD PHARMACEUTICALS INC
2,522,489$21.7B173.40%
149
VIAVVIAVI SOLUTIONS INC
1,545,887$21.6B173.35%
150
MIMECAST LTD
606,169$21.6B173.13%
151
MSAMSA SAFETY INC
197,523$21.6B172.57%
152
RG6ROGERS CORP
154,397$21.1B169.01%
153
COUPEURCOUPA SOFTWARE INC
162,244$21.0B168.33%
154
LITELUMENTUM HLDGS INC
389,479$20.9B167.03%
155
SG7SAGE THERAPEUTICS INC
146,961$20.6B165.08%
156
INTERSECT ENT INC
1,196,926$20.4B163.03%
157
WDCWESTERN DIGITAL CORP
340,545$20.3B162.63%
158
GKDGRAND CANYON ED INC
200,490$19.7B157.64%
159
PCRXPACIRA BIOSCIENCES
514,929$19.6B156.96%
160
RRYDER SYS INC
372,286$19.3B154.32%
161
BERYEURBERRY GLOBAL GROUP INC
490,635$19.3B154.27%
162
APOEURAPOLLO GLOBAL MGMT INC
490,587$18.6B148.56%
163
TDOCTELADOC HEALTH INC
270,363$18.3B146.60%
164
GOOGALPHABET INC
14,969$18.2B146.11%
165
CYRUSONE INC
230,593$18.2B146.05%
166
HLNEHAMILTON LANE INC
317,047$18.1B144.60%
167
MTORMERITOR INC
954,164$17.7B141.34%
168
RMRRMR GROUP INC
383,509$17.4B139.66%
169
ZNGAEURZYNGA INC
2,940,081$17.1B137.01%
170
PLMRPALOMAR HLDGS INC
387,463$15.3B122.30%
171
PCTYPAYLOCITY HLDG CORP
149,639$14.6B116.92%
172
SMARGBPSMARTSHEET INC
399,155$14.4B115.16%
173
AEOAMERICAN EAGLE OUTFITTERS IN
870,133$14.1B113.01%
174
FATEFATE THERAPEUTICS INC
905,619$14.1B112.61%
175
FHBFIRST HAWAIIAN INC
516,760$13.8B110.47%
176
ENVUSDENVESTNET INC
234,554$13.3B106.49%
177
MATXMATSON INC
344,878$12.9B103.58%
178
ORTXUSDORCHARD THERAPEUTICS PLC
1,077,111$12.8B102.46%
179
MOMENTA PHARMACEUTICALS INC
983,216$12.7B102.03%
180
TWTRADEWEB MKTS INC
335,643$12.4B99.38%
181
FGENEURFIBROGEN INC
316,045$11.7B93.58%
182
AVYAVERY DENNISON CORP
97,195$11.0B88.38%
183
ABTABBOTT LABS
130,462$10.9B87.41%
184
RPAYREPAY HLDGS CORP
734,214$9.8B78.37%
185
CORREVIO PHARMA CORP
4,876,455$9.8B78.09%
186
TXNTEXAS INSTRS INC
71,685$9.3B74.19%
187
WWEUSDWORLD WRESTLING ENTMT INC
129,065$9.2B73.53%
188
RCKTROCKET PHARMACEUTICALS INC
786,114$9.2B73.33%
189
CVETUSDCOVETRUS INC
730,716$8.7B69.57%
190
MRKMERCK & CO INC
97,284$8.2B65.57%
191
KOCOCA COLA CO
149,420$8.1B65.13%
192
BACVERIZON COMMUNICATIONS INC
133,335$8.0B64.44%
193
MTNVAIL RESORTS INC
33,641$7.7B61.29%
194
JPMJPMORGAN CHASE & CO
64,010$7.5B60.32%
195
DYHTARGET CORP
67,195$7.2B57.52%
196
APLSAPELLIS PHARMACEUTICALS INC
293,901$7.1B56.69%
197
NEENEXTERA ENERGY INC
30,193$7.0B56.33%
198
JKHYHENRY JACK & ASSOC INC
47,219$6.9B55.19%
199
CVSCVS HEALTH CORP
107,880$6.8B54.48%
200
ADMARCHER DANIELS MIDLAND CO
151,189$6.2B49.72%
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