WESTFIELD CAPITAL MANAGEMENT CO LP Q2 2021 Filing

Filed August 10, 2021

Portfolio Value

$16.7B

Holdings

241

Report Date

Q2 2021

Filing Type

13F-HR

All Holdings (241 positions)

#StockSharesValue% PortfolioType
101
FFIVF5 NETWORKS INC
324,634$60.6B362.91%
102
MTDMETTLER TOLEDO INTERNATIONAL
43,627$60.4B361.97%
103
LYFTLYFT INC
990,134$59.9B358.64%
104
NBIXNEUROCRINE BIOSCIENCES INC
614,993$59.9B358.45%
105
PCTYPAYLOCITY HLDG CORP
313,623$59.8B358.38%
106
PACBPACIFIC BIOSCIENCES CALIF IN
1,684,958$58.9B352.89%
107
NKENIKE INC
374,083$57.8B346.12%
108
TKRTIMKEN CO
708,662$57.1B342.04%
109
AVLRUSDAVALARA INC
349,180$56.5B338.36%
110
JNPJUNIPER NETWORKS INC
2,055,224$56.2B336.64%
111
WSMWILLIAMS SONOMA INC
351,228$56.1B335.83%
112
TTWOTAKE-TWO INTERACTIVE SOFTWAR
314,956$55.8B333.91%
113
TMUST-MOBILE US INC
384,613$55.7B333.61%
114
FOXAFOX CORP
1,496,281$55.6B332.73%
115
FCNCAFIRST CTZNS BANCSHARES INC N
66,095$55.0B329.64%
116
STSENSATA TECHNOLOGIES HLDG PL
925,134$53.6B321.19%
117
COOCOOPER COS INC
134,731$53.4B319.76%
118
FCXFREEPORT-MCMORAN INC
1,430,723$53.1B317.98%
119
HAEHAEMONETICS CORP MASS
793,986$52.9B316.89%
120
CRUSCIRRUS LOGIC INC
614,342$52.3B313.19%
121
COPCONOCOPHILLIPS
853,093$52.0B311.15%
122
BMRNBIOMARIN PHARMACEUTICAL INC
619,088$51.7B309.38%
123
PEGAPEGASYSTEMS INC
370,864$51.6B309.16%
124
OGM1COGENT COMMUNICATIONS HLDGS
646,911$49.7B297.90%
125
EXPEEXPEDIA GROUP INC
303,453$49.7B297.52%
126
TERTERADYNE INC
358,564$48.0B287.67%
127
TSLATESLA INC
69,775$47.4B284.04%
128
WCNWASTE CONNECTIONS INC
390,309$46.6B279.18%
129
NEMNEWMONT CORP
732,040$46.4B277.87%
130
FANGDIAMONDBACK ENERGY INC
480,399$45.1B270.14%
131
NVV1NOVAVAX INC
203,500$43.2B258.76%
132
QTWOQ2 HLDGS INC
414,254$42.5B254.50%
133
BKIEURBLACK KNIGHT INC
543,581$42.4B253.86%
134
LAMRLAMAR ADVERTISING CO NEW
405,743$42.4B253.74%
135
TQJSIGNATURE BK NEW YORK N Y
172,311$42.3B253.50%
136
CTSHCOGNIZANT TECHNOLOGY SOLUTIO
607,449$42.1B251.97%
137
RVLVREVOLVE GROUP INC
600,142$41.4B247.65%
138
INVAINNOVIVA INC
3,070,409$41.2B246.59%
139
CHRCHURCHILL DOWNS INC
204,221$40.5B242.49%
140
AMEDAMEDISYS INC
164,481$40.3B241.27%
141
FOURSHIFT4 PMTS INC
425,534$39.9B238.85%
142
AEISADVANCED ENERGY INDS
347,601$39.2B234.64%
143
TNDMTANDEM DIABETES CARE INC
395,981$38.6B230.99%
144
MIMECAST LTD
726,342$38.5B230.77%
145
CAKECHEESECAKE FACTORY INC
685,150$37.1B222.32%
146
PAYAUSDPAYA HOLDINGS INC
3,275,065$36.1B216.15%
147
NVTA1EURINVITAE CORP
1,030,676$34.8B208.21%
148
OPCHOPTION CARE HEALTH INC
1,556,045$34.0B203.81%
149
PRIPRIMERICA INC
218,942$33.5B200.81%
150
BERYEURBERRY GLOBAL GROUP INC
507,522$33.1B198.24%
151
PS BUSINESS PKS INC CALIF
216,746$32.1B192.22%
152
AVNTAVIENT CORPORATION
651,462$32.0B191.81%
153
AATAMERICAN ASSETS TR INC
855,459$31.9B191.05%
154
SYNASYNAPTICS INC
203,433$31.6B189.55%
155
WNSNWNS HLDGS LTD
369,733$29.5B176.86%
156
MERSANA THERAPEUTICS INC
2,108,810$28.6B171.51%
157
PACKRANPAK HOLDINGS CORP
1,143,441$28.6B171.41%
158
PLYAPLAYA HOTELS & RESORTS NV
3,840,633$28.5B170.90%
159
CGNTCOGNYTE SOFTWARE LTD
1,157,706$28.4B169.87%
160
BBIOBRIDGEBIO PHARMA INC
457,540$27.9B167.05%
161
SMARGBPSMARTSHEET INC
384,603$27.8B166.58%
162
PDCEUSDPDC ENERGY INC
607,327$27.8B166.56%
163
IM8NINSMED INC
967,079$27.5B164.84%
164
MTORMERITOR INC
1,174,946$27.5B164.80%
165
HZNPHORIZON THERAPEUTICS PUB L
293,016$27.4B164.33%
166
BWINBRP GROUP INC
1,005,283$26.8B160.45%
167
FATEFATE THERAPEUTICS INC
301,651$26.2B156.79%
168
BLBLACKLINE INC
216,921$24.1B144.56%
169
PENGSMART GLOBAL HLDGS INC
505,567$24.1B144.37%
170
MSAMSA SAFETY INC
136,723$22.6B135.59%
171
PLMRPALOMAR HLDGS INC
294,304$22.2B133.00%
172
VYXNCR CORP NEW
471,256$21.5B128.73%
173
AVGOBROADCOM INC
40,425$19.3B115.44%
174
PSTGPURE STORAGE INC
980,648$19.2B114.70%
175
CITCINTAS CORP
47,850$18.3B109.47%
176
HDHOME DEPOT INC
56,378$18.0B107.67%
177
2U INC
428,719$17.9B106.99%
178
ENPHENPHASE ENERGY INC
94,077$17.3B103.46%
179
ODFLOLD DOMINION FREIGHT LINE IN
67,946$17.2B103.28%
180
AXTAAXALTA COATING SYS LTD
541,453$16.5B98.87%
181
NKTXNKARTA INC
474,462$15.0B90.05%
182
ITWILLINOIS TOOL WKS INC
57,967$13.0B77.61%
183
GOOGALPHABET INC
4,904$12.3B73.61%
184
UPWKUPWORK INC
202,513$11.8B70.69%
185
ABBVABBVIE INC
101,611$11.4B68.54%
186
MCWMISTER CAR WASH INC
464,809$10.0B59.93%
187
DHRDANAHER CORPORATION
32,771$8.8B52.67%
188
CMCSACOMCAST CORP NEW
152,959$8.7B52.24%
189
LRCXEURLAM RESEARCH CORP
13,185$8.6B51.38%
190
CATCATERPILLAR INC
39,235$8.5B51.14%
191
CCCHEMOURS CO
212,415$7.4B44.27%
192
TROWPRICE T ROWE GROUP INC
37,325$7.4B44.25%
193
FICOFAIR ISAAC CORP
14,591$7.3B43.93%
194
AREALEXANDRIA REAL ESTATE EQ IN
38,620$7.0B42.09%
195
CSCOCISCO SYS INC
130,760$6.9B41.50%
196
BLKCHFBLACKROCK INC
7,830$6.9B41.03%
197
SUISUN CMNTYS INC
39,550$6.8B40.60%
198
HUNHUNTSMAN CORP
244,125$6.5B38.77%
199
BMYBRISTOL-MYERS SQUIBB CO
95,520$6.4B38.23%
200
PEPPEPSICO INC
42,250$6.3B37.49%
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