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Institutional Investment Manager
WESTFIELD CAPITAL MANAGEMENT CO LP
WESTFIELD CAPITAL MANAGEMENT CO LP (CIK: 0001177719) incorporated in Delaware, located at One Financial Center, Boston, MA. Institutional holdings reported to the SEC.

Institutional Holdings (2015Q3)
Original 13F HR (0001085146-15-002279) filed in 2015.11.12
#
Name
Shares
Value ($)
%
Options
Notes
101 UPBOUND GROUP INC COM 1,021,350 24,768 0.18%
102 EAST WEST BANCORP INC 646,065 24,822 0.18%
103 MASIMO CORP 647,517 24,968 0.18%
104 BGC PARTNERS INCORPORATED CLASS A 3,050,725 25,077 0.18%
105 HUNT J B TRANS SVCS INC 351,825 25,120 0.18%
106 BLOOMIN BRANDS INC 1,387,216 25,220 0.18%
107 AMC NETWORKS INC CL A 350,629 25,656 0.18%
108 COMMSCOPE 874,770 26,269 0.19%
109 NICE LTD 466,663 26,287 0.19%
110 AFFILIATED MANAGERS GROUP 154,367 26,395 0.19%
111 ALLEGIANT TRAVEL CO COM 122,694 26,533 0.19%
112 Pandora Media 1,246,890 26,609 0.19%
113 CEB INC 389,992 26,652 0.19%
114 AGILENT TECHNOLOGIES INC 782,500 26,863 0.19%
115 MONOLITHIC PWR SYS INC 528,292 27,049 0.19%
116 CARDIOME PHARMA CORP 3,222,395 27,197 0.19%
117 BUILDERS FIRSTSOURCE INC COM 2,154,750 27,322 0.19%
118 STARZ SERIES A 735,284 27,456 0.19%
119 AON PLC 310,204 27,487 0.19%
120 CNO FINL GROUP INC 1,461,276 27,487 0.19%
121 NORD ANGLIA EDUCATION INC SHS 1,386,684 28,191 0.20%
122 SONIC CORP 1,245,545 28,585 0.20%
123 HARMAN INTL INDS INC COM 298,808 28,683 0.20%
124 Intuit Inc 151,043 28,718 0.20%
125 DAVE & BUSTERS ENTMT INC 764,965 28,939 0.20%
126 CROWN CASTLE INTL CORP NEW 368,683 29,078 0.21%
127 AMERICAN EAGLE OUTFITTERS NE 1,864,200 29,137 0.21%
128 DOLLAR GEN CORP NEW 407,768 29,539 0.21%
129 TASER INTL INC 1,349,858 29,731 0.21%
130 FIVE BELOW INC 895,407 30,068 0.21%
131 WERNER ENTERPRISES INC 1,216,066 30,523 0.22%
132 ULTIMATE SOFTWARE GROUP INC COM 174,824 31,295 0.22%
133 HURON CONSULTING 500,914 31,322 0.22%
134 DYAX CORP COM CVR 1,670,922 31,898 0.23%
135 LITHIA MTRS INC COM 296,013 32,002 0.23%
136 CHEMTURA CORP 1,147,971 32,855 0.23%
137 ALEXANDER & BALDWIN INC NEW COM 959,325 32,934 0.23%
138 MAXIM INTEGR 998,925 33,364 0.24%
139 PTC THERAPEUTICS INC 1,251,141 33,405 0.24%
140 ELECTRONICS FOR IMAGING INC 773,630 33,483 0.24%
141 STEELCASE INC 1,877,299 34,561 0.24%
142 AMERIPRISE FINL INC 320,575 34,984 0.25%
143 STARWOOD HOTELS & RESORTS WORLDWIDE INC COM 532,666 35,412 0.25%
144 QUEST DIAGNOSTICS INC 586,573 36,057 0.26%
145 ROBERT HALF INTL INC 706,879 36,164 0.26%
146 Dentsply Intl Inc 719,702 36,395 0.26%
147 EXPEDIA INC DEL 315,293 37,104 0.26%
148 WATSCO INC 318,190 37,699 0.27%
149 VERIFONE SYS INC 1,371,090 38,020 0.27%
150 InterDigital Inc 1,405,131 38,276 0.27%
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