WESTFIELD CAPITAL MANAGEMENT CO LP Q1 2018 Filing

Filed May 14, 2018

Portfolio Value

$13.0T

Holdings

248

Report Date

Q1 2018

Filing Type

13F-HR

All Holdings (248 positions)

#StockSharesValue% PortfolioType
1
AMZNAMAZON COM INC
226,570$327.9B2.53%
2
AAPLAPPLE INC
1,911,372$320.7B2.47%
3
METAFACEBOOK INC
1,638,805$261.9B2.02%
4
VVISA INC
2,003,501$239.7B1.85%
5
MSFTMICROSOFT CORP
2,589,160$236.3B1.82%
6
GOOGALPHABET INC
195,246$201.5B1.55%
7
AMEAMETEK INC NEW
2,565,657$194.9B1.50%
8
JAZZJAZZ PHARMACEUTICALS PLC
1,203,405$181.7B1.40%
9
GOOGLALPHABET INC
163,535$169.6B1.31%
10
STZCONSTELLATION BRANDS INC
728,850$166.1B1.28%
11
MARMARRIOTT INTL INC NEW
1,216,443$165.4B1.27%
12
COOCOOPER COS INC
710,938$162.7B1.25%
13
HDHOME DEPOT INC
899,363$160.3B1.24%
14
STERIS PLC
1,654,326$154.4B1.19%
15
BABOEING CO
465,141$152.5B1.18%
16
UNHUNITEDHEALTH GROUP INC
712,092$152.4B1.17%
17
NOWSERVICENOW INC
908,000$150.2B1.16%
18
CRMSALESFORCE COM INC
1,287,616$149.8B1.15%
19
UNPUNION PAC CORP
1,087,131$146.1B1.13%
20
PGRPROGRESSIVE CORP OHIO
2,362,109$143.9B1.11%
21
ADBEADOBE SYS INC
640,964$138.5B1.07%
22
CELGCELGENE CORP
1,475,259$131.6B1.01%
23
VRTXVERTEX PHARMACEUTICALS INC
777,101$126.7B0.98%
24
IRINGERSOLL-RAND PLC
1,433,234$122.6B0.94%
25
EOGEOG RES INC
1,109,779$116.8B0.90%
26
ANDEAVOR
1,148,183$115.5B0.89%
27
DOWDUPONT INC
1,800,273$114.7B0.88%
28
NKTREURNEKTAR THERAPEUTICS
1,013,932$107.7B0.83%
29
ABTABBOTT LABS
1,756,838$105.3B0.81%
30
4I1PHILIP MORRIS INTL INC
1,050,409$104.4B0.80%
31
MTDMETTLER TOLEDO INTERNATIONAL
181,072$104.1B0.80%
32
UALUNITED CONTL HLDGS INC
1,487,045$103.3B0.80%
33
MAMASTERCARD INCORPORATED
582,641$102.1B0.79%
34
CTSHCOGNIZANT TECHNOLOGY SOLUTIO
1,263,307$101.7B0.78%
35
MEDICINES CO
3,029,611$99.8B0.77%
36
CMECME GROUP INC
610,726$98.8B0.76%
37
CECELANESE CORP DEL
980,149$98.2B0.76%
38
MGMMGM RESORTS INTERNATIONAL
2,783,870$97.5B0.75%
39
ITWILLINOIS TOOL WKS INC
618,209$96.8B0.75%
40
SPGIS&P GLOBAL INC
504,360$96.4B0.74%
41
CSGPCOSTAR GROUP INC
262,744$95.3B0.73%
42
LIILENNOX INTL INC
462,501$94.5B0.73%
43
BACBANK AMER CORP
3,144,783$94.3B0.73%
44
WPWORLDPAY INC
1,143,341$94.0B0.72%
45
JBHTHUNT J B TRANS SVCS INC
788,737$92.4B0.71%
46
AVGOBROADCOM LTD
390,548$92.0B0.71%
47
7SUSUMMIT MATLS INC
2,959,310$89.6B0.69%
48
PYPLPAYPAL HLDGS INC
1,171,080$88.8B0.68%
49
TDYTELEDYNE TECHNOLOGIES INC
464,323$86.9B0.67%
50
AVYAVERY DENNISON CORP
804,689$85.5B0.66%
51
BIIBBIOGEN INC
299,879$82.1B0.63%
52
AJGGALLAGHER ARTHUR J & CO
1,163,573$80.0B0.62%
53
AMATAPPLIED MATLS INC
1,420,505$79.0B0.61%
54
RSP PERMIAN INC
1,676,139$78.6B0.61%
55
IBMINTERNATIONAL BUSINESS MACHS
509,164$78.1B0.60%
56
DELPHI TECHNOLOGIES PLC
1,630,056$77.7B0.60%
57
PINNACLE FOODS INC DEL
1,426,489$77.2B0.59%
58
APTVAPTIV PLC
907,637$77.1B0.59%
59
T7DTRANSDIGM GROUP INC
249,849$76.7B0.59%
60
WEXWEX INC
486,708$76.2B0.59%
61
FTNTFORTINET INC
1,329,072$71.2B0.55%
62
TRUTRANSUNION
1,254,102$71.2B0.55%
63
RHT1EURRED HAT INC
475,148$71.0B0.55%
64
COSTCOSTCO WHSL CORP NEW
375,714$70.8B0.55%
65
MSCIMSCI INC
463,778$69.3B0.53%
66
FLT1EURFLEETCOR TECHNOLOGIES INC
338,238$68.5B0.53%
67
KLX INC
959,270$68.2B0.53%
68
SPLKCHFSPLUNK INC
681,207$67.0B0.52%
69
LRCXEURLAM RESEARCH CORP
325,862$66.2B0.51%
70
CMACOMERICA INC
675,441$64.8B0.50%
71
IHS MARKIT LTD
1,339,177$64.6B0.50%
72
TSSTOTAL SYS SVCS INC
746,440$64.4B0.50%
73
ICLRICON PLC
535,751$63.3B0.49%
74
BUWABIO RAD LABS INC
248,444$62.1B0.48%
75
DLTRDOLLAR TREE INC
642,790$61.0B0.47%
76
FLSFLOWSERVE CORP
1,405,642$60.9B0.47%
77
BABAALIBABA GROUP HLDG LTD
330,155$60.6B0.47%
78
ESNTESSENT GROUP LTD
1,409,279$60.0B0.46%
79
NSYNICE LTD
622,954$58.5B0.45%
80
MUMICRON TECHNOLOGY INC
1,119,169$58.4B0.45%
81
BERYEURBERRY GLOBAL GROUP INC
1,048,193$57.5B0.44%
82
3M4MASIMO CORP
652,958$57.4B0.44%
83
WEAWESTERN ALLIANCE BANCORP
986,636$57.3B0.44%
84
ARMKARAMARK
1,419,368$56.1B0.43%
85
VLOVALERO ENERGY CORP NEW
587,893$54.5B0.42%
86
CANTEL MEDICAL CORP
484,760$54.0B0.42%
87
XLRNACCELERON PHARMA INC
1,374,198$53.7B0.41%
88
FISFIDELITY NATL INFORMATION SV
552,360$53.2B0.41%
89
AMTAMERICAN TOWER CORP NEW
357,151$51.9B0.40%
90
MTNVAIL RESORTS INC
232,143$51.5B0.40%
91
JBTJOHN BEAN TECHNOLOGIES CORP
452,991$51.4B0.40%
92
ETRAE TRADE FINANCIAL CORP
920,435$51.0B0.39%
93
NTBBANK OF NT BUTTERFIELD&SON L
1,117,340$50.1B0.39%
94
LGF/BEURLIONS GATE ENTMNT CORP
2,029,344$48.9B0.38%
95
AXTAAXALTA COATING SYS LTD
1,618,095$48.9B0.38%
96
BLDTOPBUILD CORP
622,893$47.7B0.37%
97
UNVREURUNIVAR INC
1,710,245$47.5B0.37%
98
SIXEURSIX FLAGS ENTMT CORP NEW
740,767$46.1B0.36%
99
IDXXIDEXX LABS INC
234,307$44.8B0.35%
100
RPREALPAGE INC
857,913$44.2B0.34%
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