WESTFIELD CAPITAL MANAGEMENT CO LP Q1 2017 Filing

Filed May 12, 2017

Portfolio Value

$11.6T

Holdings

258

Report Date

Q1 2017

Filing Type

13F-HR

All Holdings (258 positions)

#StockSharesValue% PortfolioType
1
AAPLAPPLE INC
2,211,060$317.6B2.73%
2
METAFACEBOOK INC
1,589,416$225.8B1.94%
3
JAZZJAZZ PHARMACEUTICALS PLC
1,377,214$199.9B1.72%
4
MSFTMICROSOFT CORP
3,013,932$198.5B1.70%
5
AMZNAMAZON COM INC
222,453$197.2B1.69%
6
VVISA INC
2,076,936$184.6B1.58%
7
MARMARRIOTT INTL INC NEW
1,863,301$175.5B1.51%
8
CELGCELGENE CORP
1,403,327$174.6B1.50%
9
GOOGLALPHABET INC
198,738$168.5B1.45%
10
STERIS PLC
2,391,501$166.1B1.43%
11
GOOGALPHABET INC
199,329$165.4B1.42%
12
CRMSALESFORCE COM INC
1,910,607$157.6B1.35%
13
NWLNEWELL BRANDS INC
3,107,171$146.6B1.26%
14
AMEAMETEK INC NEW
2,670,710$144.4B1.24%
15
DISDISNEY WALT CO
1,261,897$143.1B1.23%
16
DOW CHEM CO
2,174,787$138.2B1.19%
17
STZCONSTELLATION BRANDS INC
819,134$132.8B1.14%
18
UNHUNITEDHEALTH GROUP INC
775,335$127.2B1.09%
19
MTNVAIL RESORTS INC
632,930$121.5B1.04%
20
NOWSERVICENOW INC
1,370,574$119.9B1.03%
21
MCDMCDONALDS CORP
896,992$116.3B1.00%
22
CHTRCHARTER COMMUNICATIONS INC N
351,558$115.1B0.99%
23
ABTABBOTT LABS
2,578,881$114.5B0.98%
24
MTDMETTLER TOLEDO INTERNATIONAL
233,664$111.9B0.96%
25
UALUNITED CONTL HLDGS INC
1,559,981$110.2B0.95%
26
ADBEADOBE SYS INC
839,959$109.3B0.94%
27
DHRDANAHER CORP DEL
1,205,916$103.1B0.89%
28
SCHWSCHWAB CHARLES CORP NEW
2,523,667$103.0B0.88%
29
UPSUNITED PARCEL SERVICE INC
941,891$101.1B0.87%
30
DELPHI AUTOMOTIVE PLC
1,244,543$100.2B0.86%
31
CECELANESE CORP DEL
1,098,611$98.7B0.85%
32
BIIBBIOGEN INC
359,107$98.2B0.84%
33
NKTREURNEKTAR THERAPEUTICS
4,030,539$94.6B0.81%
34
AVGOBROADCOM LTD
430,427$94.2B0.81%
35
COOCOOPER COS INC
461,923$92.3B0.79%
36
CMECME GROUP INC
770,348$91.5B0.79%
37
TWENTY FIRST CENTY FOX INC
2,750,026$89.1B0.76%
38
PYPLPAYPAL HLDGS INC
2,027,866$87.2B0.75%
39
SPGIS&P GLOBAL INC
666,502$87.1B0.75%
40
ICLRICON PLC
942,754$75.2B0.65%
41
NXSTNEXSTAR MEDIA GROUP INC
1,066,853$74.8B0.64%
42
ICEINTERCONTINENTAL EXCHANGE IN
1,237,295$74.1B0.64%
43
AMATAPPLIED MATLS INC
1,897,319$73.8B0.63%
44
PCRXPACIRA PHARMACEUTICALS INC
1,608,847$73.4B0.63%
45
MIDDMIDDLEBY CORP
537,165$73.3B0.63%
46
GEGENERAL ELECTRIC CO
2,454,221$73.1B0.63%
47
MAMASTERCARD INCORPORATED
643,716$72.4B0.62%
48
T7DTRANSDIGM GROUP INC
325,439$71.6B0.62%
49
BKNGPRICELINE GRP INC
38,840$69.1B0.59%
50
BERYEURBERRY PLASTICS GROUP INC
1,418,175$68.9B0.59%
51
TRUTRANSUNION
1,795,092$68.8B0.59%
52
HRCHILL ROM HLDGS INC
971,350$68.6B0.59%
53
LGF/BEURLIONS GATE ENTMNT CORP
2,811,346$68.5B0.59%
54
JBHTHUNT J B TRANS SVCS INC
732,503$67.2B0.58%
55
WRIGHT MED GROUP N V
2,131,879$66.3B0.57%
56
IBPINSTALLED BLDG PRODS INC
1,249,756$65.9B0.57%
57
IHS MARKIT LTD
1,535,117$64.4B0.55%
58
ONON SEMICONDUCTOR CORP
4,148,230$64.3B0.55%
59
CSGPCOSTAR GROUP INC
309,258$64.1B0.55%
60
HDSUSDHD SUPPLY HLDGS INC
1,532,909$63.0B0.54%
61
BMYBRISTOL MYERS SQUIBB CO
1,150,962$62.6B0.54%
62
UNPUNION PAC CORP
589,037$62.4B0.54%
63
SNISCRIPPS NETWORKS INTERACT IN
790,510$62.0B0.53%
64
CIENCIENA CORP
2,578,180$60.9B0.52%
65
TESORO CORP
740,032$60.0B0.51%
66
PINNACLE FOODS INC DEL
1,035,779$59.9B0.51%
67
SIXEURSIX FLAGS ENTMT CORP NEW
980,622$58.3B0.50%
68
LIILENNOX INTL INC
342,205$57.3B0.49%
69
CYRUSONE INC
1,108,192$57.0B0.49%
70
AJGGALLAGHER ARTHUR J & CO
1,005,308$56.8B0.49%
71
CTSHCOGNIZANT TECHNOLOGY SOLUTIO
942,064$56.1B0.48%
72
RRYDER SYS INC
742,483$56.0B0.48%
73
NKENIKE INC
1,003,753$55.9B0.48%
74
DC4DEXCOM INC
652,341$55.3B0.47%
75
NIELSEN HLDGS PLC
1,337,947$55.3B0.47%
76
FTNTFORTINET INC
1,426,358$54.7B0.47%
77
RHT1EURRED HAT INC
632,286$54.7B0.47%
78
SEESEALED AIR CORP NEW
1,196,755$52.2B0.45%
79
BFHALLIANCE DATA SYSTEMS CORP
209,407$52.1B0.45%
80
MSCIMSCI INC
533,829$51.9B0.45%
81
AVYAVERY DENNISON CORP
638,946$51.5B0.44%
82
NBIXNEUROCRINE BIOSCIENCES INC
1,185,483$51.3B0.44%
83
AXTAAXALTA COATING SYS LTD
1,585,375$51.0B0.44%
84
CAVIUM INC
695,915$49.9B0.43%
85
LITELUMENTUM HLDGS INC
932,275$49.7B0.43%
86
SPLKCHFSPLUNK INC
770,427$48.0B0.41%
87
MICROSEMI CORP
918,736$47.3B0.41%
88
TSSTOTAL SYS SVCS INC
881,578$47.1B0.40%
89
DGXQUEST DIAGNOSTICS INC
479,334$47.1B0.40%
90
JBTJOHN BEAN TECHNOLOGIES CORP
512,802$45.1B0.39%
91
EWBCEAST WEST BANCORP INC
866,439$44.7B0.38%
92
KLX INC
989,110$44.2B0.38%
93
VANTIV INC
687,110$44.1B0.38%
94
ALXNALEXION PHARMACEUTICALS INC
359,212$43.6B0.37%
95
BLDRBUILDERS FIRSTSOURCE INC
2,824,169$42.1B0.36%
96
PGRPROGRESSIVE CORP OHIO
1,069,907$41.9B0.36%
97
VLOVALERO ENERGY CORP NEW
629,966$41.8B0.36%
98
KELKELLOGG CO
566,292$41.1B0.35%
99
NSYNICE LTD
601,536$40.9B0.35%
100
MNSTMONSTER BEVERAGE CORP NEW
875,395$40.4B0.35%
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