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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 (2016Q3)
Portfolio Summary: 249 holdings with a total value of $12,391,388,000.
#
Name
Shares
Value ($)
%
Options
Notes
151 PACIRA PHARMACEUTICALS INC 1,238,408 42,378,000 0.34%
152 SCOTTS MIRACLE-GRO CO 514,582 42,849,000 0.35%
153 JOHN BEAN TECHNOLOGIES CORP COM 615,445 43,420,000 0.35%
154 PINNACLE FOODS INC DEL 870,832 43,690,000 0.35%
155 APPLIED MATLS INC 1,449,454 43,701,000 0.35%
156 DEXCOM INC 502,276 44,030,000 0.36%
157 JACK IN THE BOX INC 464,828 44,596,000 0.36%
158 NEKTAR THERAPEUTICS COM 2,661,104 45,718,000 0.37%
159 HALLIBURTON CO 1,033,052 46,363,000 0.37%
160 TOTAL SYS SVCS INC 998,091 47,060,000 0.38%
161 CHEMTURA CORP 1,442,172 47,318,000 0.38%
162 SIX FLAGS ENTMT CORP NEW 891,163 47,775,000 0.39%
163 ALKERMES PLC 1,018,500 47,900,000 0.39%
164 VULCAN MATLS CO 428,011 48,678,000 0.39%
165 EAST WEST BANCORP INC 1,327,510 48,733,000 0.39%
166 AXALTA COATING SYS LTD 1,789,695 50,595,000 0.41%
167 MONOLITHIC PWR SYS INC 631,445 50,831,000 0.41%
168 VANTIV INC 922,235 51,894,000 0.42%
169 BAKER HUGHES INC 1,051,676 53,078,000 0.43%
170 INSTALLED BLDG PRODS INC COM 1,540,916 55,273,000 0.45%
171 QUEST DIAGNOSTICS INC 661,041 55,944,000 0.45%
172 SANOFI SPOND FUNSPONSORED ADR 8,894,008 56,477,000 0.46%
173 HUNT J B TRANS SVCS INC 700,403 56,831,000 0.46%
174 MASCO CORP 1,659,155 56,926,000 0.46%
175 HD SUPPLY HLDGS INCORPORATED 1,857,266 59,395,000 0.48%
176 EQUINIX INC 166,215 59,879,000 0.48%
177 AFFILIATED MANAGERS GROUP 414,741 60,013,000 0.48%
178 POLYONE CORP 1,812,117 61,268,000 0.49%
179 NEUROCRINE BIOSCIE COM USD0.001 1,255,995 63,604,000 0.51%
180 SABRE CORP 2,283,165 64,340,000 0.52%
181 CHUBB LIMITED 523,306 65,753,000 0.53%
182 PRICELINE GRP INC 44,755 65,857,000 0.53%
183 BERRY PLASTICS GROUP INC 1,512,348 66,316,000 0.54%
184 RED HAT INC 838,420 67,769,000 0.55%
185 SPLUNK INC 1,182,527 69,391,000 0.56%
186 KELLOGG CO 901,242 69,819,000 0.56%
187 ARAMARK 1,868,555 71,061,000 0.57%
188 TRANSUNION 2,072,966 71,517,000 0.58%
189 NEXSTAR MEDIA GROUP INC 1,259,006 72,657,000 0.59%
190 Wright Medical Group NV 2,974,989 72,976,000 0.59%
191 INTEL CORP 1,934,989 73,046,000 0.59%
192 THERMO FISHER SCIENTIFIC INC 464,371 73,863,000 0.60%
193 MSCI INC 884,019 74,205,000 0.60%
194 IHS MARKIT LTD SHS 1,989,265 74,697,000 0.60%
195 MASTERCARD INCORPORATED 737,739 75,080,000 0.61%
196 BROADCOM LTD 435,347 75,106,000 0.61%
197 STARBUCKS CORP 1,428,638 77,346,000 0.62%
198 ICON PLC 1,001,700 77,502,000 0.63%
199 FORTINET INC 2,142,664 79,129,000 0.64%
200 TWENTY FIRST CENTY FOX INC 3,373,818 81,714,000 0.66%
Page 4 of 5

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001085146-16-004733, filed 2016.11.10).

From 2023-01-03 onward, the SEC requires values to be reported in nearest dollars. Earlier filings reported values in thousands; therefore, positions shown as $0 in older filings may represent actual values between $0–$999.