WESTFIELD CAPITAL MANAGEMENT CO LP Q2 2020 Filing

Filed August 13, 2020

Portfolio Value

$14.5T

Holdings

230

Report Date

Q2 2020

Filing Type

13F-HR

All Holdings (230 positions)

#StockSharesValue% PortfolioType
1
AMZNAMAZON COM INC
187,993$518.6B3.57%
2
AAPLAPPLE INC
1,363,135$497.3B3.42%
3
MSFTMICROSOFT CORP
2,237,146$455.3B3.13%
4
GOOGLALPHABET INC
244,518$346.7B2.38%
5
NOWSERVICENOW INC
752,415$304.8B2.10%
6
METAFACEBOOK INC
1,284,047$291.6B2.01%
7
SPLKCHFSPLUNK INC
1,325,144$263.3B1.81%
8
FISFIDELITY NATL INFORMATION SV
1,742,009$233.6B1.61%
9
VVISA INC
1,165,120$225.1B1.55%
10
ASNDASCENDIS PHARMA A S
1,438,665$212.8B1.46%
11
CRMSALESFORCE COM INC
1,133,287$212.3B1.46%
12
HDHOME DEPOT INC
798,981$200.2B1.38%
13
PYPLPAYPAL HLDGS INC
1,105,032$192.5B1.32%
14
GPNGLOBAL PMTS INC
993,161$168.5B1.16%
15
HUMHUMANA INC
427,187$165.6B1.14%
16
TMOTHERMO FISHER SCIENTIFIC INC
454,586$164.7B1.13%
17
ZEN1EURZENDESK INC
1,825,925$161.6B1.11%
18
BUWABIO RAD LABS INC
355,370$160.4B1.10%
19
FTNTFORTINET INC
1,147,388$157.5B1.08%
20
VRTXVERTEX PHARMACEUTICALS INC
533,578$154.9B1.07%
21
AMATAPPLIED MATLS INC
2,432,800$147.1B1.01%
22
AFWALIGN TECHNOLOGY INC
527,450$144.8B1.00%
23
T7DTRANSDIGM GROUP INC
316,575$139.9B0.96%
24
ICLRICON PLC
828,417$139.6B0.96%
25
LHXL3HARRIS TECHNOLOGIES INC
800,715$135.9B0.93%
26
NKENIKE INC
1,381,237$135.4B0.93%
27
AMEAMETEK INC
1,498,192$133.9B0.92%
28
TWLOTWILIO INC
604,070$132.5B0.91%
29
TTTRANE TECHNOLOGIES PLC
1,457,449$129.7B0.89%
30
MTDMETTLER TOLEDO INTERNATIONAL
157,685$127.0B0.87%
31
TDYTELEDYNE TECHNOLOGIES INC
404,878$125.9B0.87%
32
SPGIS&P GLOBAL INC
377,157$124.3B0.85%
33
TREXTREX CO INC
905,188$117.7B0.81%
34
DGXQUEST DIAGNOSTICS INC
995,564$113.5B0.78%
35
CHTRCHARTER COMMUNICATIONS INC N
220,881$112.7B0.77%
36
BMYBRISTOL-MYERS SQUIBB CO
1,914,436$112.6B0.77%
37
ORLYOREILLY AUTOMOTIVE INC
264,407$111.5B0.77%
38
BLDTOPBUILD CORP
973,655$110.8B0.76%
39
IDXXIDEXX LABS INC
330,676$109.2B0.75%
40
BSXBOSTON SCIENTIFIC CORP
3,100,151$108.8B0.75%
41
TMUST-MOBILE US INC
1,042,804$108.6B0.75%
42
STESTERIS PLC
707,463$108.6B0.75%
43
NSYNICE LTD
567,793$107.4B0.74%
44
JBHTHUNT J B TRANS SVCS INC
845,761$101.8B0.70%
45
AJGGALLAGHER ARTHUR J & CO
1,028,601$100.3B0.69%
46
AVGOBROADCOM INC
302,853$95.6B0.66%
47
QCOMQUALCOMM INC
996,363$90.9B0.62%
48
WDAYWORKDAY INC
482,552$90.4B0.62%
49
FLT1EURFLEETCOR TECHNOLOGIES INC
346,898$87.3B0.60%
50
ROKROCKWELL AUTOMATION INC
406,626$86.6B0.60%
51
TRUTRANSUNION
983,881$85.6B0.59%
52
WMSADVANCED DRAIN SYS INC DEL
1,710,232$84.5B0.58%
53
NVDANVIDIA CORPORATION
220,452$83.8B0.58%
54
SAICSCIENCE APPLICATIONS INTL CO
1,061,976$82.5B0.57%
55
UNPUNION PAC CORP
487,792$82.5B0.57%
56
2L9BLUEPRINT MEDICINES CORP
1,052,183$82.1B0.56%
57
BMRNBIOMARIN PHARMACEUTICAL INC
665,057$82.0B0.56%
58
HUBSHUBSPOT INC
363,217$81.5B0.56%
59
DBXDROPBOX INC
3,700,038$80.5B0.55%
60
SBACSBA COMMUNICATIONS CORP NEW
269,716$80.4B0.55%
61
LPLALPL FINL HLDGS INC
989,385$77.6B0.53%
62
CTLTEURCATALENT INC
1,045,561$76.6B0.53%
63
NVSNNOVARTIS AG
857,963$74.9B0.52%
64
WTWWILLIS TOWERS WATSON PLC LTD
380,207$74.9B0.51%
65
WEXWEX INC
450,700$74.4B0.51%
66
CSGPCOSTAR GROUP INC
103,787$73.8B0.51%
67
PCRXPACIRA BIOSCIENCES
1,361,242$71.4B0.49%
68
CSCOCISCO SYS INC
1,505,799$70.2B0.48%
69
3M4MASIMO CORP
303,727$69.2B0.48%
70
ZNGAEURZYNGA INC
7,253,357$69.2B0.48%
71
SGENEURSEATTLE GENETICS INC
405,326$68.9B0.47%
72
STZCONSTELLATION BRANDS INC
386,429$67.6B0.46%
73
SSNCSS&C TECHNOLOGIES HLDGS INC
1,193,675$67.4B0.46%
74
WMTWALMART INC
556,767$66.7B0.46%
75
TWTRADEWEB MKTS INC
1,113,024$64.7B0.44%
76
DC4DEXCOM INC
158,898$64.4B0.44%
77
XLRNACCELERON PHARMA INC
664,994$63.4B0.44%
78
KBHKB HOME
2,064,337$63.3B0.44%
79
HLTHILTON WORLDWIDE HLDGS INC
849,204$62.4B0.43%
80
FIVEFIVE BELOW INC
582,689$62.3B0.43%
81
SUISUN CMNTYS INC
455,999$61.9B0.43%
82
AMEDAMEDISYS INC
308,728$61.3B0.42%
83
LECOLINCOLN ELEC HLDGS INC
727,036$61.2B0.42%
84
ETSYETSY INC
566,238$60.2B0.41%
85
ROSTROSS STORES INC
702,128$59.8B0.41%
86
COOCOOPER COS INC
205,509$58.3B0.40%
87
NXPINXP SEMICONDUCTORS N V
504,279$57.5B0.40%
88
ODFLOLD DOMINION FREIGHT LINE IN
333,143$56.5B0.39%
89
RPMRPM INTL INC
748,979$56.2B0.39%
90
IRWDIRONWOOD PHARMACEUTICALS INC
5,341,204$55.1B0.38%
91
BXBLACKSTONE GROUP INC
966,378$54.8B0.38%
92
PODDINSULET CORP
281,823$54.7B0.38%
93
ULTAULTA BEAUTY INC
266,642$54.2B0.37%
94
CRLCHARLES RIV LABS INTL INC
301,610$52.6B0.36%
95
INTCINTEL CORP
847,961$50.7B0.35%
96
TKRTIMKEN CO
1,094,647$49.8B0.34%
97
LULULULULEMON ATHLETICA INC
158,530$49.5B0.34%
98
FICOFAIR ISAAC CORP
117,800$49.2B0.34%
99
NBIXNEUROCRINE BIOSCIENCES INC
399,466$48.7B0.34%
100
XLNXEURXILINX INC
492,826$48.5B0.33%
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