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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 (2014Q3)
Portfolio Summary: 300 holdings with a total value of $16,381,776,000.
#
Name
Shares
Value ($)
%
Options
Notes
1 APPLE INC 4,817,337 485,347,000 2.96%
2 CELGENE CORP 3,842,483 364,191,000 2.22%
3 JAZZ PHARMACEUTICALS PLC SHS USD 1,996,359 320,535,000 1.96%
4 ALLERGAN PLC 1,052,530 253,954,000 1.55%
5 TEVA PHARMACEUTICAL INDS LTD 4,687,525 251,954,000 1.54%
6 TESORO CORP 3,882,336 236,745,000 1.45%
7 MICROSOFT CORP 4,920,499 228,114,000 1.39%
8 CUBIST PHARMACEUTI 3,421,430 226,978,000 1.39%
9 THERMO FISHER SCIENTIFIC INC 1,813,475 220,700,000 1.35%
10 FACEBOOK INC 2,759,268 218,093,000 1.33%
11 COMCAST CORP NEW 3,982,708 214,190,000 1.31%
12 COOPER COS INC 1,312,172 204,371,000 1.25%
13 ISHARES NASDAQ BIOTECHNOLOGY ETF 333,246 196,085,000 1.20%
14 ABBVIE INC 3,347,675 193,362,000 1.18%
15 GOOGLE INC 333,255 192,408,000 1.17%
16 PRICELINE GRP INC 163,195 189,074,000 1.15%
17 SALESFORCE COM INC 3,206,021 184,442,000 1.13%
18 AMETEK 3,577,219 179,612,000 1.10%
19 ENDO INTL 2,599,669 177,661,000 1.08%
20 NATIONAL OILWELL 2,204,449 167,759,000 1.02%
21 VISA INC 784,686 167,428,000 1.02%
22 HALLIBURTON 2,571,612 165,895,000 1.01%
23 DISNEY WALT CO 1,829,795 162,907,000 0.99%
24 MONSANTO CO NEW 1,408,530 158,474,000 0.97%
25 VERIZON COMMUNICATIONS INC 3,141,756 157,056,000 0.96%
26 TWENTY FIRST CENTY FOX INC 4,444,247 152,393,000 0.93%
27 TYCO INTL LTD. 3,288,255 146,558,000 0.89%
28 IHS Markit Ltd. 1,059,590 132,650,000 0.81%
29 PPG INDS INC 654,818 128,829,000 0.79%
30 DANAHER CORP DEL 1,675,876 127,333,000 0.78%
31 JPMORGAN CHASE & CO 2,111,239 127,181,000 0.78%
32 INGERSOLL-RAND PLC 2,242,639 126,395,000 0.77%
33 COSTCO WHSL CORP NEW 1,006,955 126,192,000 0.77%
34 CARDINAL HEALTH INC 1,682,095 126,023,000 0.77%
35 MWI VETERINARY SUP 837,209 124,242,000 0.76%
36 CSX CORP 3,716,410 119,148,000 0.73%
37 CATERPILLAR INC 1,191,194 117,964,000 0.72%
38 SUNCOR ENERGY INC NEW 3,260,593 117,870,000 0.72%
39 CELANESE 1,990,913 116,508,000 0.71%
40 HERSHEY CO 1,218,684 116,299,000 0.71%
41 AEGERION PHARMACEUTICALS INC 3,475,306 116,006,000 0.71%
42 PRECISION CASTPARTS 489,147 115,869,000 0.71%
43 URBAN OUTFITTERS INC COM 3,125,543 114,707,000 0.70%
44 VALERO ENERGY CORP NEW 2,451,707 113,440,000 0.69%
45 LAM RESEARCH CORP 1,511,900 112,939,000 0.69%
46 V F CORP 1,704,845 112,571,000 0.69%
47 INTERNATIONAL BUSINESS MACHS 587,961 111,613,000 0.68%
48 EMC 3,783,800 110,714,000 0.68%
49 GENESEE AND WYOMING INC INC CL A 1,158,489 110,416,000 0.67%
50 Nielsen Holdings B.V. 2,487,606 110,276,000 0.67%
Page 1 of 6

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001085146-14-002222, filed 2014.11.12).

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.