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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 (2014Q3)
Original 13F HR (0001085146-14-002222) filed in 2014.11.12
#
Name
Shares
Value ($)
%
Options
Notes
201 PACCAR INC 1,395,480 79,368 0.48%
202 PACKAGING CORP AMER 1,034,377 66,014 0.40%
203 PALL CORP 4,800 402 0.00%
204 PALO ALTO NETWORKS INC 873,172 85,658 0.52%
205 PEPSICO INC 21,861 2,035 0.01%
206 PFIZER INC 102,555 3,033 0.02%
207 POLARIS INDS INC 446,780 66,923 0.41%
208 POLYONE CORP 2,442,636 86,909 0.53%
209 POWER SOLUTIONS INTL INC 279,904 19,313 0.12%
210 PPG INDS INC 654,818 128,829 0.79%
211 PRECISION CASTPARTS 489,147 115,869 0.71%
212 PRICE T ROWE GROUP INC 379,525 29,755 0.18%
213 PRICELINE GRP INC 163,195 189,074 1.15%
214 PROCTER AND GAMBLE CO 40,517 3,393 0.02%
215 PROTHENA CORP PLC 1,158,395 25,670 0.16%
216 PTC THERAPEUTICS INC 720,980 31,730 0.19%
217 Pandora Media Inc 1,537,610 37,149 0.23%
218 QIAGEN NV 1,025,640 23,354 0.14%
219 QLIK TECHNOLOGIES INC COM 3,023,700 81,761 0.50%
220 QUALCOMM INC 1,466,572 109,656 0.67%
221 QUEST DIAGNOSTICS INC 496,300 30,115 0.18%
222 R H 1,219,530 97,014 0.59%
223 RACKSPACE HOSTING INC 389,060 12,664 0.08%
224 RAYMOND JAMES FINANC 1,191,515 63,841 0.39%
225 RED HAT INC 782,152 43,918 0.27%
226 REGIONS FINANCIAL CORP NEW 2,825,700 28,370 0.17%
227 RIVERBED TECHNOLOGY INC 637,183 11,817 0.07%
228 ROBERT HALF INTL INC 1,066,560 52,261 0.32%
229 ROCKWOOD HOLDINGS INC 829,425 63,410 0.39%
230 ROWAN COMPANIES PLC 1,731,325 43,820 0.27%
231 RPM INTL INC 1,229,640 56,293 0.34%
232 RUSH ENTERPRISES INC CL A 590,205 19,742 0.12%
233 Royal Gold Inc 1,826,505 24,402 0.15%
234 SAIA INC COM 395,748 19,613 0.12%
235 SALESFORCE COM INC 3,206,021 184,442 1.13%
236 SANGAMO THERAPEUTICS INCORPORATED 34,000 367 0.00%
237 SCHLUMBERGER LTD 7,979 811 0.00%
238 SEMPRA ENERGY 2,000 211 0.00%
239 SENSATA TECHNOLOGIES HLDG NV 510,090 22,714 0.14%
240 SERVICE CORP INTL 2,375,275 50,213 0.31%
241 SERVICENOW INC 1,436,154 84,417 0.52%
242 SHUTTERFLY INC 589,875 28,751 0.18%
243 SIGNET JEWELERS LIMITED 742,341 84,560 0.52%
244 SK TELECOM LTD 439,371 13,331 0.08%
245 SKYWORKS SOLUTIONS INC 826,930 48,003 0.29%
246 SOTHEBYS 508,135 18,151 0.11%
247 SPECTRANETICS CORP 1,723,030 45,781 0.28%
248 STANDARD PAC CORP 2,760,420 20,676 0.13%
249 STARBUCKS CORP 1,159,099 87,466 0.53%
250 STARWOOD HOTELS & RESORTS WORLDWIDE INC COM 297,620 24,765 0.15%
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