Dark
Light
System
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 (2015Q2)
Portfolio Summary: 283 holdings with a total value of $16,394,451,000.
#
Name
Shares
Value ($)
%
Options
Notes
1 APPLE INC 4,051,779 508,194,000 3.10%
2 JAZZ PHARMACEUTICALS PLC SHS USD 2,361,458 415,782,000 2.54%
3 TEVA PHARMACEUTICAL INDS LTD 5,857,591 346,184,000 2.11%
4 ABBVIE INC 4,498,649 302,264,000 1.84%
5 CELGENE CORP 2,534,913 293,378,000 1.79%
6 ALLERGAN PLC 841,372 255,323,000 1.56%
7 CITIGROUP INC 4,582,534 253,139,000 1.54%
8 FACEBOOK INC 2,693,440 231,003,000 1.41%
9 COMCAST CORP NEW 3,445,032 207,184,000 1.26%
10 COOPER COS INC 1,159,303 206,321,000 1.26%
11 DELPHI AUTOMOTIVE PLC 2,347,968 199,789,000 1.22%
12 VISA INC 2,933,896 197,011,000 1.20%
13 UNITED CONTINENTAL H 3,659,591 193,995,000 1.18%
14 DISNEY WALT CO 1,697,282 193,728,000 1.18%
15 SALESFORCE COM INC 2,778,294 193,453,000 1.18%
16 MYLAN N V 2,718,114 184,451,000 1.13%
17 CATERPILLAR INC 2,161,638 183,350,000 1.12%
18 PRICELINE GRP INC 157,449 181,282,000 1.11%
19 UNITED THERAPEUTICS 1,018,653 177,195,000 1.08%
20 ISHARES NASDAQ BIOTECHNOLOGY ETF 321,943 173,862,000 1.06%
21 CONSTELLATION BRANDS INC 1,486,190 172,428,000 1.05%
22 DOW CHEM CO 3,362,485 172,058,000 1.05%
23 GOOGLE INC 322,722 167,980,000 1.02%
24 SERVICENOW INC 2,172,113 161,410,000 0.98%
25 PALO ALTO NETWORKS 921,995 161,073,000 0.98%
26 EMC 6,067,993 160,134,000 0.98%
27 HOME DEPOT INC 1,434,408 159,406,000 0.97%
28 TESORO CORP 1,881,831 158,845,000 0.97%
29 UNION PAC CORP 1,618,868 154,391,000 0.94%
30 TWENTY FIRST CENTY FOX INC 4,677,933 152,243,000 0.93%
31 DOLLAR TREE INC 1,917,585 151,470,000 0.92%
32 JARDEN CORP 2,917,242 150,967,000 0.92%
33 PRECISION CASTPARTS 752,969 150,496,000 0.92%
34 MASTERCARD INCORPORATED 1,556,988 145,547,000 0.89%
35 Coca Cola Enterprises 3,293,166 143,055,000 0.87%
36 VALERO ENERGY CORP NEW 2,195,380 137,431,000 0.84%
37 V F CORP 1,962,385 136,857,000 0.83%
38 LAM RESEARCH CORP 1,503,815 122,335,000 0.75%
39 PTC THERAPEUTICS INC 2,466,760 118,725,000 0.72%
40 STATE STR CORP 1,521,351 117,144,000 0.71%
41 WHIRLPOOL 675,746 116,938,000 0.71%
42 ADOBE INC 1,405,335 113,846,000 0.69%
43 ANALOG DEVICES INC 1,752,478 112,483,000 0.69%
44 CELANESE 1,553,832 111,689,000 0.68%
45 LAUDER ESTEE COS INC 1,254,870 108,747,000 0.66%
46 ULTA BEAUTY INC 696,698 107,605,000 0.66%
47 METTLER-TOLEDO 314,474 107,380,000 0.65%
48 PACCAR INC 1,678,040 107,076,000 0.65%
49 INTERNATIONAL BUSINESS MACHS 657,204 106,901,000 0.65%
50 PACIRA BIOSCIENCES INC 1,494,052 105,659,000 0.64%
Page 1 of 6

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001085146-15-001755, filed 2015.08.13).

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.