WESTFIELD CAPITAL MANAGEMENT CO LP Q4 2016 Filing

Filed February 10, 2017

Portfolio Value

$11.4T

Holdings

253

Report Date

Q4 2016

Filing Type

13F-HR

All Holdings (253 positions)

#StockSharesValue% PortfolioType
101
KNOLL INC
1,419,658$39.7B0.35%
102
SPLKCHFSPLUNK INC
760,985$38.9B0.34%
103
LGF/BEURLIONS GATE ENTMNT CORP
1,579,403$38.8B0.34%
104
MIC2EURMACQUARIE INFRASTRUCTURE COR
456,740$37.3B0.33%
105
AOSSMITH A O
787,476$37.3B0.33%
106
AJGGALLAGHER ARTHUR J & CO
715,978$37.2B0.33%
107
MERRIMACK PHARMACEUTICALS IN
9,072,877$37.0B0.32%
108
BLDRBUILDERS FIRSTSOURCE INC
3,361,156$36.9B0.32%
109
7SUSUMMIT MATLS INC
1,538,511$36.6B0.32%
110
3M4MASIMO CORP
539,713$36.4B0.32%
111
JT5MUELLER WTR PRODS INC
2,711,156$36.1B0.32%
112
CR1USDCRANE CO
489,040$35.3B0.31%
113
JACKJACK IN THE BOX INC
312,788$34.9B0.31%
114
BFAMBRIGHT HORIZONS FAM SOL IN D
495,804$34.7B0.30%
115
GRA1EURGRACE W R & CO DEL NEW
513,105$34.7B0.30%
116
PLAYDAVE & BUSTERS ENTMT INC
610,745$34.4B0.30%
117
SIXEURSIX FLAGS ENTMT CORP NEW
568,582$34.1B0.30%
118
SAVESPIRIT AIRLS INC
588,075$34.0B0.30%
119
ZAYOEURZAYO GROUP HLDGS INC
1,013,840$33.3B0.29%
120
XLRNACCELERON PHARMA INC
1,252,409$32.0B0.28%
121
COSCNO FINL GROUP INC
1,629,815$31.2B0.27%
122
IPGINTERPUBLIC GROUP COS INC
1,316,317$30.8B0.27%
123
ORLYO REILLY AUTOMOTIVE INC NEW
109,284$30.4B0.27%
124
FCB FINL HLDGS INC
630,429$30.1B0.26%
125
IARTINTEGRA LIFESCIENCES HLDGS C
348,146$29.9B0.26%
126
MPWRMONOLITHIC PWR SYS INC
355,277$29.1B0.26%
127
BROADSOFT INC
699,259$28.8B0.25%
128
LBRDALIBERTY BROADBAND CORP
383,545$27.8B0.24%
129
NSCNORFOLK SOUTHERN CORP
254,893$27.5B0.24%
130
WESTERN REFNG INC
718,890$27.2B0.24%
131
CYRUSONE INC
607,621$27.2B0.24%
132
MSGSMADISON SQUARE GARDEN CO NEW
157,200$27.0B0.24%
133
SMGSCOTTS MIRACLE GRO CO
278,482$26.6B0.23%
134
RUSHARUSH ENTERPRISES INC
832,231$26.5B0.23%
135
ELECTRONICS FOR IMAGING INC
591,135$25.9B0.23%
136
VMCVULCAN MATLS CO
206,550$25.9B0.23%
137
CYPRESS SEMICONDUCTOR CORP
2,258,265$25.8B0.23%
138
CYBRCYBERARK SOFTWARE LTD
566,335$25.8B0.23%
139
LGFEURLIONS GATE ENTMNT CORP
953,678$25.7B0.22%
140
NSYNICE LTD
370,023$25.4B0.22%
141
ARRIS INTL INC
844,059$25.4B0.22%
142
KLACKLA-TENCOR CORP
320,400$25.2B0.22%
143
ZEN1EURZENDESK INC
1,180,635$25.0B0.22%
144
AFWALIGN TECHNOLOGY INC
259,323$24.9B0.22%
145
WEAWESTERN ALLIANCE BANCORP
508,345$24.8B0.22%
146
RPREALPAGE INC
810,983$24.3B0.21%
147
OMCLOMNICELL INC
713,546$24.2B0.21%
148
INTERXION HOLDING N.V
684,700$24.0B0.21%
149
LULULULULEMON ATHLETICA INC
367,218$23.9B0.21%
150
STWDSTARWOOD PPTY TR INC
1,077,691$23.7B0.21%
151
LYVLIVE NATION ENTERTAINMENT IN
887,960$23.6B0.21%
152
BFHALLIANCE DATA SYSTEMS CORP
102,192$23.4B0.20%
153
CHUYUSDCHUYS HLDGS INC
716,215$23.2B0.20%
154
ALKSALKERMES PLC
410,415$22.8B0.20%
155
XRAYDENTSPLY SIRONA INC
389,619$22.5B0.20%
156
TFXTELEFLEX INC
136,241$22.0B0.19%
157
UNVREURUNIVAR INC
763,190$21.7B0.19%
158
GOLFACUSHNET HOLDINGS CORP
1,096,795$21.6B0.19%
159
HEIHEICO CORP NEW
316,805$21.5B0.19%
160
NORD ANGLIA EDUCATION INC
920,480$21.4B0.19%
161
HXLHEXCEL CORP NEW
411,916$21.2B0.19%
162
ULTIMATE SOFTWARE GROUP INC
115,889$21.1B0.19%
163
ELDORADO RESORTS INC
1,235,696$20.9B0.18%
164
BCBRUNSWICK CORP
377,721$20.6B0.18%
165
ANAUTONATION INC
421,780$20.5B0.18%
166
ORBOTECH LTD
605,477$20.2B0.18%
167
CAVIUM INC
315,750$19.7B0.17%
168
CVLTCOMMVAULT SYSTEMS INC
381,277$19.6B0.17%
169
BMRNBIOMARIN PHARMACEUTICAL INC
236,470$19.6B0.17%
170
AMWDAMERICAN WOODMARK CORP
259,843$19.6B0.17%
171
SIVBEURSVB FINL GROUP
113,266$19.4B0.17%
172
BGCPEURBGC PARTNERS INC
1,884,515$19.3B0.17%
173
CLVSEURCLOVIS ONCOLOGY INC
429,185$19.1B0.17%
174
PVHPVH CORP
210,000$18.9B0.17%
175
HAINHAIN CELESTIAL GROUP INC
482,179$18.8B0.17%
176
EEFTEURONET WORLDWIDE INC
259,675$18.8B0.16%
177
MLKNMILLER HERMAN INC
540,245$18.5B0.16%
178
ULTAULTA SALON COSMETCS & FRAG I
71,227$18.2B0.16%
179
CFRCULLEN FROST BANKERS INC
205,291$18.1B0.16%
180
LITELUMENTUM HLDGS INC
466,190$18.0B0.16%
181
SHOPSHOPIFY INC
418,390$17.9B0.16%
182
NSANATIONAL STORAGE AFFILIATES
791,597$17.5B0.15%
183
MATXMATSON INC
493,345$17.5B0.15%
184
8CWCROWN CASTLE INTL CORP NEW
200,330$17.4B0.15%
185
MULTI COLOR CORP
223,330$17.3B0.15%
186
FBINFORTUNE BRANDS HOME & SEC IN
320,249$17.1B0.15%
187
BIDSOTHEBYS
428,585$17.1B0.15%
188
DATATABLEAU SOFTWARE INC
404,685$17.1B0.15%
189
EXPEEXPEDIA INC DEL
149,380$16.9B0.15%
190
HURNHURON CONSULTING GROUP INC
333,522$16.9B0.15%
191
FLSFLOWSERVE CORP
345,365$16.6B0.15%
192
FCPTFOUR CORNERS PPTY TR INC
806,020$16.5B0.15%
193
PFPTPROOFPOINT INC
233,579$16.5B0.14%
194
MKTXMARKETAXESS HLDGS INC
112,113$16.5B0.14%
195
PRTAPROTHENA CORP PLC
328,275$16.1B0.14%
196
WNSNWNS HOLDINGS LTD
579,660$16.0B0.14%
197
ISLE OF CAPRI CASINOS INC
645,199$15.9B0.14%
198
SITESITEONE LANDSCAPE SUPPLY INC
424,716$14.8B0.13%
199
SSS1EURLIFE STORAGE INC
167,025$14.2B0.12%
200
HASHASBRO INC
181,485$14.1B0.12%
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