WESTFIELD CAPITAL MANAGEMENT CO LP Q1 2019 Filing

Filed May 14, 2019

Portfolio Value

$13.1T

Holdings

246

Report Date

Q1 2019

Filing Type

13F-HR

All Holdings (246 positions)

#StockSharesValue% PortfolioType
1
AAPLAPPLE INC
1,922,722$365.2B2.78%
2
AMZNAMAZON COM INC
197,074$350.9B2.67%
3
MSFTMICROSOFT CORP
2,139,797$252.4B1.92%
4
VVISA INC
1,487,673$232.4B1.77%
5
BABOEING CO
575,535$219.5B1.67%
6
NOWSERVICENOW INC
879,244$216.7B1.65%
7
GOOGALPHABET INC
182,241$213.8B1.63%
8
UNHUNITEDHEALTH GROUP INC
794,857$196.5B1.50%
9
HDHOME DEPOT INC
1,010,900$194.0B1.48%
10
CRMSALESFORCE COM INC
1,210,925$191.8B1.46%
11
MTDMETTLER TOLEDO INTERNATIONAL
257,237$186.0B1.42%
12
MPCMARATHON PETE CORP
2,973,677$178.0B1.35%
13
AMEAMETEK INC NEW
2,095,323$173.8B1.32%
14
GOOGLALPHABET INC
145,370$171.1B1.30%
15
BMYBRISTOL MYERS SQUIBB CO
3,278,241$156.4B1.19%
16
TDYTELEDYNE TECHNOLOGIES INC
656,538$155.6B1.18%
17
IRINGERSOLL-RAND PLC
1,409,211$152.1B1.16%
18
COOCOOPER COS INC
511,047$151.4B1.15%
19
MEDICINES CO
5,290,481$147.9B1.13%
20
NFLXNETFLIX INC
398,084$141.9B1.08%
21
T7DTRANSDIGM GROUP INC
299,044$135.8B1.03%
22
VRTXVERTEX PHARMACEUTICALS INC
682,226$125.5B0.95%
23
MARMARRIOTT INTL INC NEW
1,000,070$125.1B0.95%
24
TMOTHERMO FISHER SCIENTIFIC INC
456,640$125.0B0.95%
25
MAMASTERCARD INC
506,625$119.3B0.91%
26
UNPUNION PACIFIC CORP
710,087$118.7B0.90%
27
WPWORLDPAY INC
1,044,667$118.6B0.90%
28
ADBEADOBE INC
444,365$118.4B0.90%
29
STESTERIS PLC
923,205$118.2B0.90%
30
BUWABIO RAD LABS INC
376,471$115.1B0.88%
31
SPGIS&P GLOBAL INC
544,811$114.7B0.87%
32
AVYAVERY DENNISON CORP
1,008,453$114.0B0.87%
33
LIILENNOX INTL INC
426,451$112.8B0.86%
34
CHTRCHARTER COMMUNICATIONS INC N
317,023$110.0B0.84%
35
ULTAULTA BEAUTY INC
307,397$107.2B0.82%
36
PYPLPAYPAL HLDGS INC
1,029,499$106.9B0.81%
37
MCDMCDONALDS CORP
561,167$106.6B0.81%
38
PGRPROGRESSIVE CORP OHIO
1,432,011$103.2B0.79%
39
AJGGALLAGHER ARTHUR J & CO
1,306,977$102.1B0.78%
40
ITWILLINOIS TOOL WKS INC
703,381$101.0B0.77%
41
TMUST MOBILE US INC
1,442,803$99.7B0.76%
42
ZEN1EURZENDESK INC
1,148,789$97.6B0.74%
43
TSSTOTAL SYS SVCS INC
998,108$94.8B0.72%
44
FTNTFORTINET INC
1,118,818$93.9B0.71%
45
ICLRICON PLC
682,325$93.2B0.71%
46
METAFACEBOOK INC
545,590$90.9B0.69%
47
DISDISNEY WALT CO
818,100$90.8B0.69%
48
FLT1EURFLEETCOR TECHNOLOGIES INC
364,463$89.9B0.68%
49
CAGCONAGRA BRANDS INC
3,239,408$89.9B0.68%
50
AMATAPPLIED MATLS INC
2,254,251$89.4B0.68%
51
AVGOBROADCOM INC
295,411$88.8B0.68%
52
NKENIKE INC
1,049,198$88.4B0.67%
53
CATCATERPILLAR INC DEL
642,805$87.1B0.66%
54
JBHTHUNT J B TRANS SVCS INC
812,178$82.3B0.63%
55
BACBANK AMER CORP
2,965,611$81.8B0.62%
56
MSGSMADISON SQUARE GARDEN CO NEW
278,729$81.7B0.62%
57
EOGEOG RES INC
857,636$81.6B0.62%
58
ASNDASCENDIS PHARMA A S
686,545$80.8B0.61%
59
PXDEURPIONEER NAT RES CO
496,846$75.7B0.58%
60
TRUTRANSUNION
1,131,930$75.7B0.58%
61
BKIEURBLACK KNIGHT INC
1,352,308$73.7B0.56%
62
IHS MARKIT LTD
1,345,644$73.2B0.56%
63
IBMINTERNATIONAL BUSINESS MACHS
516,761$72.9B0.55%
64
SPLKCHFSPLUNK INC
580,762$72.4B0.55%
65
NSYNICE LTD
590,567$72.3B0.55%
66
AREALEXANDRIA REAL ESTATE EQ IN
479,622$68.4B0.52%
67
SBACSBA COMMUNICATIONS CORP NEW
340,849$68.1B0.52%
68
HLTHILTON WORLDWIDE HLDGS INC
806,422$67.0B0.51%
69
MSCIMSCI INC
324,000$64.4B0.49%
70
XLRNACCELERON PHARMA INC
1,377,123$64.1B0.49%
71
HAEHAEMONETICS CORP
728,979$63.8B0.49%
72
ESNTESSENT GROUP LTD
1,465,102$63.7B0.48%
73
ULTIMATE SOFTWARE GROUP INC
180,374$59.5B0.45%
74
FISFIDELITY NATL INFORMATION SV
520,734$58.9B0.45%
75
PFPTPROOFPOINT INC
484,757$58.9B0.45%
76
PANWPALO ALTO NETWORKS INC
235,429$57.2B0.44%
77
ADIANALOG DEVICES INC
535,239$56.3B0.43%
78
BIIBBIOGEN INC
237,250$56.1B0.43%
79
IDXXIDEXX LABS INC
244,320$54.6B0.42%
80
WPX ENERGY INC
4,130,310$54.1B0.41%
81
MRVLMARVELL TECHNOLOGY GROUP LTD
2,644,464$52.6B0.40%
82
FLSFLOWSERVE CORP
1,154,212$52.1B0.40%
83
TSCOTRACTOR SUPPLY CO
519,319$50.8B0.39%
84
ADSKAUTODESK INC
324,626$50.6B0.38%
85
SSNCSS&C TECHNOLOGIES HLDGS INC
781,881$49.8B0.38%
86
FIVEFIVE BELOW INC
399,178$49.6B0.38%
87
PBFPBF ENERGY INC
1,584,192$49.3B0.38%
88
GDDYGODADDY INC
655,419$49.3B0.38%
89
ELDORADO RESORTS INC
1,054,364$49.2B0.37%
90
LPLALPL FINL HLDGS INC
702,275$48.9B0.37%
91
SIXEURSIX FLAGS ENTMT CORP NEW
990,053$48.9B0.37%
92
RPREALPAGE INC
798,574$48.5B0.37%
93
LULULULULEMON ATHLETICA INC
294,207$48.2B0.37%
94
RJFRAYMOND JAMES FINANCIAL INC
599,371$48.2B0.37%
95
DGXQUEST DIAGNOSTICS INC
499,656$44.9B0.34%
96
7SUSUMMIT MATLS INC
2,824,928$44.8B0.34%
97
ANETEURARISTA NETWORKS INC
141,973$44.6B0.34%
98
HEIHEICO CORP NEW
519,638$43.7B0.33%
99
GWREGUIDEWIRE SOFTWARE INC
440,106$42.8B0.33%
100
QTS RLTY TR INC
946,345$42.6B0.32%
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