WESTFIELD CAPITAL MANAGEMENT CO LP Q2 2016 Filing

Filed August 12, 2016

Portfolio Value

$12.1T

Holdings

257

Report Date

Q2 2016

Filing Type

13F-HR

All Holdings (257 positions)

#StockSharesValue% PortfolioType
1
AAPLAPPLE INC
2,901,345$277.4B2.29%
2
JAZZJAZZ PHARMACEUTICALS PLC
1,784,762$252.2B2.08%
3
MSFTMICROSOFT CORP
4,778,678$244.5B2.02%
4
CHTRCHARTER COMMUNICATIONS INC N
923,824$211.2B1.74%
5
STERIS PLC
3,035,201$208.7B1.72%
6
STZCONSTELLATION BRANDS INC
1,235,277$204.3B1.69%
7
BMYBRISTOL MYERS SQUIBB CO
2,719,547$200.0B1.65%
8
METAFACEBOOK INC
1,640,768$187.5B1.55%
9
NWLNEWELL BRANDS INC
3,482,069$169.1B1.40%
10
GOOGLALPHABET INC
237,572$167.1B1.38%
11
GOOGALPHABET INC
238,174$164.8B1.36%
12
CELGCELGENE CORP
1,620,873$159.9B1.32%
13
VVISA INC
2,112,297$156.7B1.29%
14
DOW CHEM CO
3,121,845$155.2B1.28%
15
TEVATEVA PHARMACEUTICAL INDS LTD
2,946,519$148.0B1.22%
16
LMTLOCKHEED MARTIN CORP
575,235$142.8B1.18%
17
CRMSALESFORCE COM INC
1,740,751$138.2B1.14%
18
DHRDANAHER CORP DEL
1,349,211$136.3B1.12%
19
UALUNITED CONTL HLDGS INC
3,313,048$136.0B1.12%
20
COOCOOPER COS INC
785,363$134.7B1.11%
21
DLTRDOLLAR TREE INC
1,401,140$132.0B1.09%
22
PANWPALO ALTO NETWORKS INC
1,066,805$130.8B1.08%
23
AMZNAMAZON COM INC
179,719$128.6B1.06%
24
TJXTJX COS INC NEW
1,663,588$128.5B1.06%
25
NIELSEN HLDGS PLC
2,438,945$126.8B1.05%
26
UNPUNION PAC CORP
1,442,860$125.9B1.04%
27
HDHOME DEPOT INC
981,562$125.3B1.03%
28
TWENTY FIRST CENTY FOX INC
4,617,995$124.9B1.03%
29
CECELANESE CORP DEL
1,849,316$121.0B1.00%
30
NOWSERVICENOW INC
1,659,951$110.2B0.91%
31
UPSUNITED PARCEL SERVICE INC
1,021,174$110.0B0.91%
32
MARMARRIOTT INTL INC NEW
1,633,056$108.5B0.90%
33
BKNGPRICELINE GRP INC
84,643$105.7B0.87%
34
KRKROGER CO
2,841,154$104.5B0.86%
35
LIILENNOX INTL INC
716,127$102.1B0.84%
36
MAMASTERCARD INC
1,091,748$96.1B0.79%
37
MTNVAIL RESORTS INC
675,901$93.4B0.77%
38
CMECME GROUP INC
958,218$93.3B0.77%
39
EQIXEQUINIX INC
240,655$93.3B0.77%
40
CSGPCOSTAR GROUP INC
426,121$93.2B0.77%
41
COSTCOSTCO WHSL CORP NEW
593,085$93.1B0.77%
42
SYFSYNCHRONY FINL
3,583,629$90.6B0.75%
43
T7DTRANSDIGM GROUP INC
335,874$88.6B0.73%
44
AIZASSURANT INC
1,006,364$86.9B0.72%
45
TMOTHERMO FISHER SCIENTIFIC INC
586,384$86.6B0.71%
46
SBUXSTARBUCKS CORP
1,511,279$86.3B0.71%
47
MTDMETTLER TOLEDO INTERNATIONAL
235,478$85.9B0.71%
48
ARMKARAMARK
2,443,625$81.7B0.67%
49
LRCXEURLAM RESEARCH CORP
943,411$79.3B0.65%
50
ARIAD PHARMACEUTICALS INC
10,575,638$78.2B0.64%
51
LKQ1LKQ CORP
2,455,028$77.8B0.64%
52
ICLRICON PLC
1,079,645$75.6B0.62%
53
AFWALIGN TECHNOLOGY INC
892,968$71.9B0.59%
54
KELKELLOGG CO
855,694$69.9B0.58%
55
MSCIMSCI INC
895,159$69.0B0.57%
56
GRA1EURGRACE W R & CO DEL NEW
935,978$68.5B0.57%
57
DGXQUEST DIAGNOSTICS INC
834,546$67.9B0.56%
58
HDSUSDHD SUPPLY HLDGS INC
1,906,698$66.4B0.55%
59
ULTAULTA SALON COSMETCS & FRAG I
271,803$66.2B0.55%
60
MIDDMIDDLEBY CORP
570,199$65.7B0.54%
61
IHS INC
566,671$65.5B0.54%
62
ONON SEMICONDUCTOR CORP
7,253,093$64.0B0.53%
63
FTNTFORTINET INC
1,997,059$63.1B0.52%
64
POLYONE CORP
1,769,227$62.3B0.51%
65
VMCVULCAN MATLS CO
513,109$61.8B0.51%
66
NXSTNEXSTAR BROADCASTING GROUP I
1,283,796$61.1B0.50%
67
AVGOBROADCOM LTD
385,820$60.0B0.49%
68
BIIBBIOGEN INC
245,663$59.4B0.49%
69
AMGAFFILIATED MANAGERS GROUP
421,088$59.3B0.49%
70
NBIXNEUROCRINE BIOSCIENCES INC
1,275,575$58.0B0.48%
71
MICROSEMI CORP
1,771,088$57.9B0.48%
72
SCHWSCHWAB CHARLES CORP NEW
2,285,518$57.8B0.48%
73
DC4DEXCOM INC
710,001$56.3B0.46%
74
SABRSABRE CORP
2,099,585$56.2B0.46%
75
ALKSALKERMES PLC
1,272,500$55.0B0.45%
76
TRUTRANSUNION
1,643,851$55.0B0.45%
77
TEAM HEALTH HOLDINGS INC
1,323,590$53.8B0.44%
78
TSSTOTAL SYS SVCS INC
1,006,731$53.5B0.44%
79
VANTIV INC
935,657$53.0B0.44%
80
RHT1EURRED HAT INC
727,661$52.8B0.44%
81
WRIGHT MED GROUP N V
3,025,577$52.6B0.43%
82
LIBERTY INTERACTIVE CORP
2,034,811$51.6B0.43%
83
QLIK TECHNOLOGIES INC
1,714,038$50.7B0.42%
84
BKRBAKER HUGHES INC
1,122,733$50.7B0.42%
85
BAXBAXTER INTL INC
1,112,610$50.3B0.42%
86
ALGTALLEGIANT TRAVEL CO
326,617$49.5B0.41%
87
MERRIMACK PHARMACEUTICALS IN
9,074,557$48.9B0.40%
88
HALHALLIBURTON CO
1,077,006$48.8B0.40%
89
MPWRMONOLITHIC PWR SYS INC
701,438$47.9B0.40%
90
CTSHCOGNIZANT TECHNOLOGY SOLUTIO
813,708$46.6B0.38%
91
SNASNAP ON INC
291,642$46.0B0.38%
92
PCRXPACIRA PHARMACEUTICALS INC
1,333,868$45.0B0.37%
93
TFXTELEFLEX INC
250,933$44.5B0.37%
94
EWBCEAST WEST BANCORP INC
1,283,965$43.9B0.36%
95
3M4MASIMO CORP
825,464$43.3B0.36%
96
ULTIMATE SOFTWARE GROUP INC
203,867$42.9B0.35%
97
BFAMBRIGHT HORIZONS FAM SOL IN D
640,474$42.5B0.35%
98
LULULULULEMON ATHLETICA INC
574,130$42.4B0.35%
99
WSOWATSCO INC
297,908$41.9B0.35%
100
SPLKCHFSPLUNK INC
765,947$41.5B0.34%
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