WESTFIELD CAPITAL MANAGEMENT CO LP Q1 2016 Filing

Filed May 13, 2016

Portfolio Value

$13.1T

Holdings

252

Report Date

Q1 2016

Filing Type

13F-HR

All Holdings (252 positions)

#StockSharesValue% PortfolioType
101
SNISCRIPPS NETWORKS INTERACT IN
628,335$41.2B0.31%
102
FBINFORTUNE BRANDS HOME & SEC IN
729,503$40.9B0.31%
103
HDSUSDHD SUPPLY HLDGS INC
1,231,747$40.7B0.31%
104
WSOWATSCO INC
299,903$40.4B0.31%
105
8CWCROWN CASTLE INTL CORP NEW
466,097$40.3B0.31%
106
ONON SEMICONDUCTOR CORP
4,181,285$40.1B0.31%
107
ULTIMATE SOFTWARE GROUP INC
205,409$39.7B0.30%
108
IARTINTEGRA LIFESCIENCES HLDGS C
570,355$38.4B0.29%
109
BCBRUNSWICK CORP
794,691$38.1B0.29%
110
ARRIS INTL INC
1,652,892$37.9B0.29%
111
BROADSOFT INC
922,524$37.2B0.28%
112
DGDOLLAR GEN CORP NEW
433,205$37.1B0.28%
113
BKRBAKER HUGHES INC
838,486$36.8B0.28%
114
PCRXPACIRA PHARMACEUTICALS INC
693,054$36.7B0.28%
115
KNOLL INC
1,675,293$36.3B0.28%
116
CHEMTURA CORP
1,359,455$35.9B0.27%
117
RJFRAYMOND JAMES FINANCIAL INC
737,354$35.1B0.27%
118
ELECTRONICS FOR IMAGING INC
826,310$35.0B0.27%
119
AOSSMITH A O
458,390$35.0B0.27%
120
3M4MASIMO CORP
828,904$34.7B0.26%
121
MIC2EURMACQUARIE INFRASTRUCTURE COR
512,605$34.6B0.26%
122
INTERXION HOLDING N.V
980,920$33.9B0.26%
123
ZTSZOETIS INC
764,321$33.9B0.26%
124
KELKELLOGG CO
442,585$33.9B0.26%
125
BLDRBUILDERS FIRSTSOURCE INC
3,002,381$33.8B0.26%
126
MEDIVATION INC
730,823$33.6B0.26%
127
SIGSIGNET JEWELERS LIMITED
266,681$33.1B0.25%
128
MICROSEMI CORP
847,307$32.5B0.25%
129
RHIROBERT HALF INTL INC
691,902$32.2B0.25%
130
STWDSTARWOOD PPTY TR INC
1,702,551$32.2B0.25%
131
MATXMATSON INC
796,329$32.0B0.24%
132
FRCBFIRST REP BK SAN FRANCISCO C
478,552$31.9B0.24%
133
CIENCIENA CORP
1,674,520$31.8B0.24%
134
VERIFONE SYS INC
1,127,352$31.8B0.24%
135
JACKJACK IN THE BOX INC
496,733$31.7B0.24%
136
GJBSTEELCASE INC
2,092,087$31.2B0.24%
137
IPGINTERPUBLIC GROUP COS INC
1,292,392$29.7B0.23%
138
VEEVVEEVA SYS INC
1,159,630$29.0B0.22%
139
NVGSNAVIGATOR HOLDINGS LTD
1,794,667$29.0B0.22%
140
AG8AGILENT TECHNOLOGIES INC
724,374$28.9B0.22%
141
IBPINSTALLED BLDG PRODS INC
1,084,587$28.9B0.22%
142
JBTJOHN BEAN TECHNOLOGIES CORP
511,070$28.8B0.22%
143
AWMSKYWORKS SOLUTIONS INC
369,103$28.8B0.22%
144
EXPEEXPEDIA INC DEL
266,211$28.7B0.22%
145
HURNHURON CONSULTING GROUP INC
488,669$28.4B0.22%
146
MSGSMADISON SQUARE GARDEN CO NEW
170,750$28.4B0.22%
147
NSYNICE SYS LTD
420,058$27.2B0.21%
148
BERYEURBERRY PLASTICS GROUP INC
751,510$27.2B0.21%
149
JLLJONES LANG LASALLE INC
231,381$27.1B0.21%
150
HEARTLAND PMT SYS INC
271,917$26.3B0.20%
151
HXLHEXCEL CORP NEW
561,661$24.6B0.19%
152
OISOIL STS INTL INC
764,275$24.1B0.18%
153
JBHTHUNT J B TRANS SVCS INC
270,392$22.8B0.17%
154
NORD ANGLIA EDUCATION INC
1,085,885$22.7B0.17%
155
SAVESPIRIT AIRLS INC
472,585$22.7B0.17%
156
QRVOQORVO INC
447,320$22.5B0.17%
157
VISNCOMMSCOPE HLDG CO INC
802,162$22.4B0.17%
158
RESTORATION HARDWARE HLDGS I
533,713$22.4B0.17%
159
ODFLOLD DOMINION FGHT LINES INC
319,850$22.3B0.17%
160
RUSHARUSH ENTERPRISES INC
1,206,534$22.0B0.17%
161
MPWRMONOLITHIC PWR SYS INC
338,617$21.6B0.16%
162
NXPINXP SEMICONDUCTORS N V
261,352$21.2B0.16%
163
ZEN1EURZENDESK INC
1,008,655$21.1B0.16%
164
STRZSTARZ
797,185$21.0B0.16%
165
GGENPACT LIMITED
760,600$20.7B0.16%
166
PFPTPROOFPOINT INC
381,164$20.5B0.16%
167
CEB INC
310,172$20.1B0.15%
168
CVLTCOMMVAULT SYSTEMS INC
455,652$19.7B0.15%
169
FQIDIGITAL RLTY TR INC
219,990$19.5B0.15%
170
CMGCHIPOTLE MEXICAN GRILL INC
39,271$18.5B0.14%
171
BGCPEURBGC PARTNERS INC
2,012,015$18.2B0.14%
172
LADLITHIA MTRS INC
199,908$17.5B0.13%
173
PLAYDAVE & BUSTERS ENTMT INC
449,400$17.4B0.13%
174
WESTERN REFNG INC
591,960$17.2B0.13%
175
CRUSCIRRUS LOGIC INC
469,383$17.1B0.13%
176
TXRHTEXAS ROADHOUSE INC
383,505$16.7B0.13%
177
BRKRBRUKER CORP
590,627$16.5B0.13%
178
CARDIOME PHARMA CORP
3,968,245$16.2B0.12%
179
FLSFLOWSERVE CORP
356,215$15.8B0.12%
180
CMCSACOMCAST CORP NEW
255,270$15.6B0.12%
181
CFRCULLEN FROST BANKERS INC
281,631$15.5B0.12%
182
KEXKIRBY CORP
253,595$15.3B0.12%
183
ENDO INTL PLC
528,137$14.9B0.11%
184
AMWDAMERICAN WOODMARK CORP
195,608$14.6B0.11%
185
COSCNO FINL GROUP INC
814,011$14.6B0.11%
186
MICHAEL KORS HLDGS LTD
247,895$14.1B0.11%
187
ADTNEURADTRAN INC
677,910$13.7B0.10%
188
MKTXMARKETAXESS HLDGS INC
109,075$13.6B0.10%
189
NHINATIONAL HEALTH INVS INC
199,647$13.3B0.10%
190
FCPTFOUR CORNERS PPTY TR INC
667,850$12.0B0.09%
191
DC4DEXCOM INC
169,218$11.5B0.09%
192
AMAGAMAG PHARMACEUTICALS INC
489,105$11.4B0.09%
193
MTZMASTEC INC
541,890$11.0B0.08%
194
ALKSALKERMES PLC
304,638$10.4B0.08%
195
RPDRAPID7 INC
759,543$9.9B0.08%
196
TANDEM DIABETES CARE INC
911,166$7.9B0.06%
197
JKHYHENRY JACK & ASSOC INC
92,484$7.8B0.06%
198
CSCOCISCO SYS INC
273,895$7.8B0.06%
199
TAT&T INC
183,570$7.2B0.05%
200
PAYXPAYCHEX INC
128,669$6.9B0.05%
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