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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
1 COCA COLA ENTERPRISES INC NE COM 3,115,441 150,632 1.07%
2 DYAX CORP COM CVR 1,670,922 31,898 0.23%
3 3M CO 1,894 269 0.00%
4 ABBVIE INC 2,970,476 161,624 1.14%
5 ADOBE INC 1,682,076 138,300 0.98%
6 AFFILIATED MANAGERS GROUP 154,367 26,395 0.19%
7 AGILENT TECHNOLOGIES INC 782,500 26,863 0.19%
8 AIR PRODS & CHEMS INC 3,320 424 0.00%
9 ALEXANDER & BALDWIN INC NEW COM 959,325 32,934 0.23%
10 ALIGN TECHNOLOGY INC 1,399,377 79,429 0.56%
11 ALLEGIANT TRAVEL CO 122,694 26,533 0.19%
12 ALLERGAN PLC 19,330 5,254 0.04%
13 ALLIANCE DATA SYSTEMS CORP 254,842 65,999 0.47%
14 ALLISON TRANSMISSION HLDGS INC COM 75,550 2,016 0.01%
15 ALLSCRIPTS HEALTHCARE SOLUTN 5,804,292 71,973 0.51%
16 AMAG PHARMACEUTICALS INC 1,886,905 74,967 0.53%
17 AMAZON COM INC 283,277 145,007 1.03%
18 AMC NETWORKS INC CL A 350,629 25,656 0.18%
19 AMERICAN EAGLE OUTFITTERS NE 1,864,200 29,137 0.21%
20 AMERIPRISE FINL INC 320,575 34,984 0.25%
21 ANALOG DEVICES INC 2,289,431 129,147 0.91%
22 AON PLC 310,204 27,487 0.19%
23 APPLE INC 3,989,366 440,027 3.12%
24 APPLIED MATLS INC 1,479,130 21,728 0.15%
25 ARIAD PHARMACEUTICALS ORD (NMS) 9,633,464 56,259 0.40%
26 ASBURY AUTOMOTIVE GROUP INC COM 540,748 43,882 0.31%
27 ASSURANT INC 1,101,299 87,014 0.62%
28 ASTRAZENECA PLC 190,900 6,074 0.04%
29 AUTODESK INC 525,340 23,189 0.16%
30 AVAGO TECHNOLOGIES LTD SHS 465,088 58,141 0.41%
31 BANK AMER CORP 343,650 5,354 0.04%
32 BANKUNITED INC 1,998,489 71,446 0.51%
33 BERKSHIRE HATHAWAY INC DEL 4,213 549 0.00%
34 BGC PARTNERS INC 3,050,725 25,077 0.18%
35 BIOGEN INC 690 201 0.00%
36 BLOOMIN BRANDS INC 1,387,216 25,220 0.18%
37 BOEING CO 33,630 4,404 0.03%
38 BORGWARNER INC 445,710 18,537 0.13%
39 BOSTON PROPERTIES INC 2,200 260 0.00%
40 BRIGHT HORIZONS FAM SOL IN DEL COM 632,115 40,607 0.29%
41 BRISTOL MYERS SQUIBB CO 130,330 7,716 0.05%
42 BROADSOFT INC 787,519 23,594 0.17%
43 BRUKER CORP 1,098,592 18,050 0.13%
44 BRUNSWICK CORP 1,090,078 52,204 0.37%
45 BUILDERS FIRSTSOURCE 2,154,750 27,322 0.19%
46 BioTelemetry Inc 50,100 613 0.00%
47 CARDINAL HEALTH INC 1,045,361 80,305 0.57%
48 CARDIOME PHARMA CORP 3,222,395 27,197 0.19%
49 CATERPILLAR INC 710,028 46,407 0.33%
50 CBRE GROUP INC 1,450,307 46,410 0.33%
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