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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 (2016Q1)
Original 13F HR (0001085146-16-003726) filed in 2016.05.13
#
Name
Shares
Value ($)
%
Options
Notes
51 DANAHER CORP DEL 858,341 81,422 0.62%
52 ARAMARK 2,383,320 78,936 0.60%
53 ICON PLC 1,037,225 77,896 0.59%
54 COGNIZANT TECHNOLOGY SOLUTIO 1,242,160 77,883 0.59%
55 DENTSPLY SIRONA INC 1,263,530 77,871 0.59%
56 ASSURANT INC 987,652 76,197 0.58%
57 ALIGN TECHNOLOGY INC 1,022,993 74,361 0.57%
58 IHS Markit Ltd. 598,606 74,323 0.57%
59 SCHWAB CHARLES CORP 2,637,965 73,916 0.56%
60 BANKUNITED INC 2,112,665 72,760 0.55%
61 ARIAD PHARMACEUTICALS ORD (NMS) 11,104,978 70,961 0.54%
62 CITIGROUP INC 1,698,383 70,907 0.54%
63 MSCI INC 938,239 69,505 0.53%
64 SANOFI SPOND FUNSPONSORED ADR 8,127,022 68,023 0.52%
65 AFFILIATED MANAGERS GROUP 418,483 67,962 0.52%
66 FORTINET INC 2,194,762 67,226 0.51%
67 MIDDLEBY CORP 609,592 65,086 0.50%
68 SPLUNK INC 1,320,672 64,620 0.49%
69 QUEST DIAGNOSTICS INC 872,599 62,347 0.47%
70 TESORO CORP 710,220 61,086 0.46%
71 EAST WEST BANCORP INC 1,874,216 60,875 0.46%
72 VULCAN MATLS CO 575,211 60,725 0.46%
73 SIX FLAGS ENTMT CORP NEW 1,091,963 60,593 0.46%
74 RED HAT INC 810,849 60,416 0.46%
75 NEXSTAR MEDIA GROUP INC 1,323,673 58,599 0.45%
76 IMPERVA INC 1,115,883 56,352 0.43%
77 MANPOWERGROUP INC 690,389 56,211 0.43%
78 ULTA BEAUTY INC 287,868 55,772 0.42%
79 WR GRACE & CO 780,833 55,580 0.42%
80 VANTIV INC 1,020,849 55,003 0.42%
81 EASTMAN CHEM CO 760,083 54,901 0.42%
82 ZEBRA TECHNOLOGIES CORPORATION CL A 771,253 53,216 0.40%
83 CBRE GROUP INC 1,842,423 53,099 0.40%
84 ALLIANCE DATA SYSTEMS CORP 238,937 52,566 0.40%
85 NEUROCRINE BIOSCIENCES INC 1,318,500 52,147 0.40%
86 LIBERTY INTERACTIVE CORP 2,057,946 51,963 0.40%
87 SABRE CORP 1,707,335 49,376 0.38%
88 LULULEMON ATHLETICA INC 718,221 48,631 0.37%
89 SNAP ON INC 307,081 48,209 0.37%
90 BORGWARNER INC 1,240,913 47,651 0.36%
91 TEAM HEALTH HOLDINGS INC 1,123,898 46,990 0.36%
92 POLYONE CORP 1,535,717 46,455 0.35%
93 QLIK TECHNOLOGIES INC COM 1,600,116 46,275 0.35%
94 SCOTTS MIRACLE-GRO CO 631,697 45,969 0.35%
95 TOTAL SYS SVCS INC 959,281 45,643 0.35%
96 Wright Medical Group NV 2,641,419 43,848 0.33%
97 SONIC CORP 1,219,018 42,861 0.33%
98 BRIGHT HORIZONS FAM SOL IN D 642,895 41,647 0.32%
99 TELEFLEX INC 263,475 41,368 0.31%
100 ALLEGIANT TRAVEL CO COM 232,034 41,316 0.31%
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