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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 (2016Q2)
Portfolio Summary: 257 holdings with a total value of $12,120,551,000.
#
Name
Shares
Value ($)
%
Options
Notes
101 INTEGRA LIFESCIENCES HLDGS CP COM NEW 515,190 41,102,000 0.34%
102 SIX FLAGS ENTMT CORP NEW 701,433 40,648,000 0.34%
103 FORTUNE BRANDS HOME & SEC IN 699,353 40,541,000 0.33%
104 CROWN CASTLE INTL CORP NEW 399,130 40,484,000 0.33%
105 CHEMTURA CORP 1,512,917 39,911,000 0.33%
106 INSTALLED BLDG PRODS INC COM 1,082,337 39,278,000 0.32%
107 KNOLL INC 1,591,163 38,633,000 0.32%
108 DENTSPLY SIRONA INC 622,074 38,593,000 0.32%
109 DOLLAR GEN CORP NEW 409,795 38,521,000 0.32%
110 JOHN BEAN TECHNOLOGIES CORP COM 628,965 38,505,000 0.32%
111 SCRIPPS NETWORKS INTERACT IN 609,785 37,971,000 0.31%
112 BUILDERS FIRSTSOURCE 3,333,316 37,500,000 0.31%
113 ELECTRONICS FOR IMAGING INC 869,450 37,421,000 0.31%
114 AXALTA COATING SYS LTD 1,376,630 36,522,000 0.30%
115 MACQUARIE INFRASTRUCTURE COR 490,887 36,350,000 0.30%
116 OLD DOMINION FREIGHT LINE IN 582,910 35,155,000 0.29%
117 RAYMOND JAMES FINANC 702,529 34,635,000 0.29%
118 JACK IN THE BOX INC 402,993 34,625,000 0.29%
119 BERRY PLASTICS GROUP INC 884,320 34,356,000 0.28%
120 INTERPUBLIC GROUP COS INC 1,477,262 34,125,000 0.28%
121 STARWOOD PPTY TR INC COM 1,610,106 33,361,000 0.28%
122 BANKUNITED INC 1,057,210 32,477,000 0.27%
123 ALLIANCE DATA SYSTEMS CORP 162,526 31,842,000 0.26%
124 FIRST REP BK SAN FRANCISCO C 453,999 31,775,000 0.26%
125 SCOTTS MIRACLE-GRO CO 448,918 31,384,000 0.26%
126 STAG INDL INC 1,316,706 31,351,000 0.26%
127 A O SMITH 352,553 31,063,000 0.26%
128 AGILENT TECHNOLOGIES INC 683,279 30,310,000 0.25%
129 HUNT J B TRANS SVCS INC 370,712 30,002,000 0.25%
130 CBRE GROUP INC 1,114,748 29,519,000 0.24%
131 HENRY SCHEIN INC 166,766 29,484,000 0.24%
132 HURON CONSULTING 486,976 29,423,000 0.24%
133 NORFOLK SOUTHERN CORP 337,000 28,689,000 0.24%
134 BROADSOFT INC 696,514 28,578,000 0.24%
135 MADISON SQUARE GARDEN CO NEW 162,001 27,947,000 0.23%
136 EXPEDIA INC DEL 251,278 26,711,000 0.22%
137 DAVE & BUSTERS ENTMT INC 567,890 26,572,000 0.22%
138 ZENDESK INC 1,006,245 26,545,000 0.22%
139 VERIFONE SYS INC 1,420,317 26,333,000 0.22%
140 RUSH ENTERPRISES INC CL A 1,216,674 26,219,000 0.22%
141 OIL STS INTL INC 780,855 25,675,000 0.21%
142 FLOWSERVE CORP 554,990 25,069,000 0.21%
143 Nice Systems LTD Sponsored 391,368 24,989,000 0.21%
144 SONIC CORP 915,970 24,777,000 0.20%
145 SPIRIT AIRLS INC 547,180 24,552,000 0.20%
146 STARZ SERIES A 809,030 24,206,000 0.20%
147 CYBERARK SOFTWARE LTD 489,450 23,782,000 0.20%
148 EASTMAN CHEM CO 347,192 23,574,000 0.19%
149 CRITEO S A 505,860 23,229,000 0.19%
150 HEXCEL CORP NEW COM 557,121 23,199,000 0.19%
Page 3 of 6

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001085146-16-004272, filed 2016.08.12).

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.