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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
151 Pandora Media Inc 1,246,890 26,609 0.19%
152 ALLEGIANT TRAVEL CO 122,694 26,533 0.19%
153 AFFILIATED MANAGERS GROUP 154,367 26,395 0.19%
154 Nice Systems LTD Sponsored 466,663 26,287 0.19%
155 COMMSCOPE HLDG COMPANY INCORPORATED 874,770 26,269 0.19%
156 AMC NETWORKS INC CL A 350,629 25,656 0.18%
157 BLOOMIN BRANDS INC 1,387,216 25,220 0.18%
158 HUNT J B TRANS SVCS INC 351,825 25,120 0.18%
159 BGC PARTNERS INC 3,050,725 25,077 0.18%
160 MASIMO CORP 647,517 24,968 0.18%
161 EAST WEST BANCORP INC 646,065 24,822 0.18%
162 RENT A CENTER INC-NEW 1,021,350 24,768 0.18%
163 HEXCEL CORP NEW COM 548,792 24,619 0.17%
164 INSTALLED BLDG PRODS INC COM 958,674 24,235 0.17%
165 WR GRACE & CO 260,255 24,217 0.17%
166 GENPACT LIMITED 1,019,362 24,067 0.17%
167 BROADSOFT INC 787,519 23,594 0.17%
168 AUTODESK INC 525,340 23,189 0.16%
169 RUSH ENTERPRISES INC CL A 956,009 23,135 0.16%
170 HOMEAWAY INC 842,952 22,372 0.16%
171 DYNAVAX TECHNOLOGIES CORP 888,247 21,798 0.15%
172 APPLIED MATLS INC 1,479,130 21,728 0.15%
173 FORTUNE BRANDS HOME & SEC IN 457,685 21,726 0.15%
174 STIFEL FINANCIAL CP 513,628 21,624 0.15%
175 PAPA JOHNS INTL INC COM 314,574 21,542 0.15%
176 HUNTSMAN CORP 2,199,355 21,312 0.15%
177 MATSON INC COM 526,956 20,283 0.14%
178 NAVIGATOR HLDGS LTD 1,458,468 19,471 0.14%
179 MACQUARIE INFRASTRUCTURE COR 252,314 18,838 0.13%
180 CommVault Systems Inc 550,281 18,688 0.13%
181 SCOTTS MIRACLE-GRO CO 306,389 18,635 0.13%
182 BORGWARNER INC 445,710 18,537 0.13%
183 INTEGRA LIFESCIENCES HLDGS CP COM NEW 305,275 18,179 0.13%
184 BRUKER CORP 1,098,592 18,050 0.13%
185 CIRRUS LOGIC INC 545,952 17,203 0.12%
186 Former Charter Communication (Del 5/18/2016) 97,615 17,166 0.12%
187 TELEFLEX INC 137,630 17,095 0.12%
188 PUMA BIOTECHNOLOGY 221,356 16,681 0.12%
189 ZENDESK INC 754,981 14,881 0.11%
190 NATIONAL HEALTH INVS INC 240,618 13,833 0.10%
191 QORVO INC 305,000 13,740 0.10%
192 POWER SOLUTIONS INTL INC 557,937 12,671 0.09%
193 TANDEM DIABETES CARE INC COM 1,089,601 9,599 0.07%
194 MICROSOFT CORP 175,593 7,772 0.06%
195 BRISTOL MYERS SQUIBB CO 130,330 7,716 0.05%
196 FIRST AMERN FINL CORP 183,446 7,167 0.05%
197 WYNDHAM WORLDWIDE CORP 95,522 6,868 0.05%
198 QUALCOMM INC 123,906 6,657 0.05%
199 CHEMOCENTRYX INC 1,082,957 6,552 0.05%
200 CITIGROUPINC 125,350 6,219 0.04%
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