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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
51 SOUTH STATE CORP COM USD2.5 5,700 438 0.00%
52 SONIC CORP 1,245,545 28,585 0.20%
53 SNAP ON INC 392,101 59,184 0.42%
54 SKYWORKS SOLUTIONS INC 13,760 1,159 0.01%
55 SIX FLAGS ENTMT CORP NEW 1,130,643 51,761 0.37%
56 SIGNET JEWELERS LIMITED 496,411 67,576 0.48%
57 SERVICENOW INC 1,819,444 126,360 0.89%
58 SERVICE CORP INTL 2,954,570 80,069 0.57%
59 SCOTTS MIRACLE-GRO CO 306,389 18,635 0.13%
60 SCHWAB CHARLES CORP 3,014,381 86,091 0.61%
61 SCHLUMBERGER LTD 7,874 543 0.00%
62 SANOFI SPOND FUNSPONSORED ADR 6,511,561 55,413 0.39%
63 SALESFORCE COM INC 2,702,110 187,607 1.33%
64 SABRE CORP 2,752,950 74,825 0.53%
65 RUSH ENTERPRISES INC CL A 956,009 23,135 0.16%
66 RPM INTL INC 1,316,354 55,142 0.39%
67 ROBERT HALF INTL INC 706,879 36,164 0.26%
68 RED HAT INC 822,556 59,125 0.42%
69 RAYMOND JAMES FINANC 1,058,934 52,555 0.37%
70 RAPID7 INC 112,470 2,559 0.02%
71 R H 996,406 92,975 0.66%
72 QUOTIENT LTD 33,166 431 0.00%
73 QUEST DIAGNOSTICS INC 586,573 36,057 0.26%
74 QUALCOMM INC 123,906 6,657 0.05%
75 QORVO INC 305,000 13,740 0.10%
76 QLIK TECHNOLOGIES INC COM 1,744,165 63,575 0.45%
77 Pandora Media 1,246,890 26,609 0.19%
78 PUMA BIOTECHNOLOGY 221,356 16,681 0.12%
79 PTC THERAPEUTICS INC 1,251,141 33,405 0.24%
80 PROTHENA CORP PLC 987,979 44,795 0.32%
81 PROCTER AND GAMBLE CO 6,760 486 0.00%
82 PRICELINE GRP INC 151,550 187,446 1.33%
83 POWER SOLUTIONS INTERNATIONAL INC 557,937 12,671 0.09%
84 POLYONE CORP 1,554,081 45,597 0.32%
85 PFIZER INC 146,805 4,611 0.03%
86 PEPSICO INC 44,602 4,206 0.03%
87 PAYCHEX INC 109,012 5,192 0.04%
88 PAPA JOHNS INTL INC 314,574 21,542 0.15%
89 PALO ALTO NETWORKS INC 945,125 162,562 1.15%
90 PACWEST BANCORP DEL COM 104,050 4,454 0.03%
91 PACKAGING CORP AMER 13,610 819 0.01%
92 PACIRA PHARMACEUTICALS INC 1,389,164 57,095 0.40%
93 PACCAR INC 7,100 370 0.00%
94 ON SEMICONDUCTOR CORP 7,668,791 72,087 0.51%
95 OCLARO INC 127,100 292 0.00%
96 NORTHERN TRUST 12,096 824 0.01%
97 NORD ANGLIA EDUCATION INC SHS 1,386,684 28,191 0.20%
98 NIELSEN HLDGS PLC 2,758,901 122,688 0.87%
99 NICE LTD 466,663 26,287 0.19%
100 NEXSTAR MEDIA GROUP INC 928,083 43,945 0.31%
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