CASTLEARK MANAGEMENT LLC Q1 2020 Filing

Filed May 13, 2020

Portfolio Value

$1.7T

Holdings

336

Report Date

Q1 2020

Filing Type

13F-HR

All Holdings (336 positions)

#StockSharesValue% PortfolioType
1
MSFTMICROSOFT CORP
431,560$68.1B4.03%
2
AMZNAMAZON COM INC
31,605$61.6B3.65%
3
AAPLAPPLE INC
228,030$58.0B3.43%
4
GQ9SPDR GOLD TRUST
341,505$50.6B2.99%
5
GOOGALPHABET INC
31,750$36.9B2.19%
6
VVISA INC
221,345$35.7B2.11%
7
ADBEADOBE INC
103,800$33.0B1.96%
8
BABAALIBABA GROUP HLDG LTD
161,075$31.3B1.85%
9
METAFACEBOOK INC
177,280$29.6B1.75%
10
DC4DEXCOM INC
107,870$29.0B1.72%
11
ASMLASML HOLDING N V
101,720$26.6B1.58%
12
SPGIS&P GLOBAL INC
108,030$26.5B1.57%
13
TXNTEXAS INSTRS INC
256,300$25.6B1.52%
14
VRTXVERTEX PHARMACEUTICALS INC
105,060$25.0B1.48%
15
AVGOBROADCOM INC
97,840$23.2B1.37%
16
PYPLPAYPAL HLDGS INC
241,950$23.2B1.37%
17
TSLATESLA INC
43,743$22.9B1.36%
18
CRMSALESFORCE COM INC
152,630$22.0B1.30%
19
NOWSERVICENOW INC
72,775$20.9B1.23%
20
TRUTRANSUNION
303,090$20.1B1.19%
21
INTUINTUIT
86,420$19.9B1.18%
22
BSXBOSTON SCIENTIFIC CORP
608,720$19.9B1.18%
23
EPAMEPAM SYS INC
103,140$19.1B1.13%
24
LRCXEURLAM RESEARCH CORP
77,790$18.7B1.11%
25
KSUEURKANSAS CITY SOUTHERN
144,810$18.4B1.09%
26
NVDANVIDIA CORP
67,270$17.7B1.05%
27
UNHUNITEDHEALTH GROUP INC
69,530$17.3B1.03%
28
ZBRAZEBRA TECHNOLOGIES CORP
92,700$17.0B1.01%
29
MDBMONGODB INC
120,084$16.4B0.97%
30
PAYCPAYCOM SOFTWARE INC
79,070$16.0B0.95%
31
JPMJPMORGAN CHASE & CO
176,820$15.9B0.94%
32
LULULULULEMON ATHLETICA INC
77,100$14.6B0.87%
33
NKENIKE INC
173,660$14.4B0.85%
34
SPLKCHFSPLUNK INC
109,270$13.8B0.82%
35
TTTRANE TECHNOLOGIES PLC
163,320$13.5B0.80%
36
TJXTJX COS INC NEW
269,880$12.9B0.76%
37
COSTCOSTCO WHSL CORP NEW
44,780$12.8B0.76%
38
NUANEURNUANCE COMMUNICATIONS INC
744,225$12.5B0.74%
39
3M4MASIMO CORP
66,437$11.8B0.70%
40
TDOCTELADOC HEALTH INC
73,692$11.4B0.68%
41
VRNSVARONIS SYS INC
176,848$11.3B0.67%
42
RGENREPLIGEN CORP
113,076$10.9B0.65%
43
AMEDAMEDISYS INC
58,500$10.7B0.64%
44
MAMASTERCARD INC
42,340$10.2B0.61%
45
CSXCSX CORP
175,700$10.1B0.60%
46
XLVSELECT SECTOR SPDR TR
112,400$10.0B0.59%
47
NEONEOGENOMICS INC
355,720$9.8B0.58%
48
CTLTEURCATALENT INC
180,709$9.4B0.56%
49
HELEHELEN OF TROY CORP LTD
64,990$9.4B0.55%
50
HZNPHORIZON THERAPEUTICS PUB LTD
315,555$9.3B0.55%
51
ZNGAEURZYNGA INC
1,314,704$9.0B0.53%
52
ACADACADIA PHARMACEUTICALS INC
213,070$9.0B0.53%
53
SAICSCIENCE APPLICATNS INTL CP N
117,580$8.8B0.52%
54
LVSLAS VEGAS SANDS CORP
203,180$8.6B0.51%
55
BURLBURLINGTON STORES INC
54,400$8.6B0.51%
56
NVROEURNEVRO CORP
82,078$8.2B0.49%
57
ILMNILLUMINA INC
30,030$8.2B0.49%
58
HALOHALOZYME THERAPEUTICS INC
437,870$7.9B0.47%
59
KNXKNIGHT SWIFT TRANSN HLDGS IN
236,835$7.8B0.46%
60
CLHCLEAN HARBORS INC
150,464$7.7B0.46%
61
CA8ACACI INTL INC
36,032$7.6B0.45%
62
EFAISHARES TR
140,000$7.5B0.44%
63
TREXTREX CO INC
92,312$7.4B0.44%
64
WEXWEX INC
66,980$7.0B0.41%
65
PZZAPAPA JOHNS INTL INC
130,660$7.0B0.41%
66
BLBLACKLINE INC
131,485$6.9B0.41%
67
HCQAMN HEALTHCARE SVCS INC
118,428$6.8B0.41%
68
K6BKBR INC
330,420$6.8B0.40%
69
INSPINSPIRE MED SYS INC
112,188$6.8B0.40%
70
ENQENTEGRIS INC
149,828$6.7B0.40%
71
LPSNUSDLIVEPERSON INC
290,569$6.6B0.39%
72
CRLCHARLES RIV LABS INTL INC
51,920$6.6B0.39%
73
HQYHEALTHEQUITY INC
129,405$6.5B0.39%
74
MLABMESA LABS INC
28,451$6.4B0.38%
75
MKSIMKS INSTRS INC
77,766$6.3B0.38%
76
NTRANATERA INC
209,810$6.3B0.37%
77
ROCKGIBRALTAR INDS INC
145,245$6.2B0.37%
78
LPXLOUISIANA PAC CORP
358,415$6.2B0.36%
79
WENWENDYS CO
408,299$6.1B0.36%
80
CLDRCLOUDERA INC
762,140$6.0B0.36%
81
WMSADVANCED DRAIN SYS INC DEL
203,556$6.0B0.35%
82
RNGRINGCENTRAL INC
27,982$5.9B0.35%
83
POLYONE CORP
306,091$5.8B0.34%
84
ENOVCOLFAX CORP
285,925$5.7B0.34%
85
TNDMTANDEM DIABETES CARE INC
87,415$5.6B0.33%
86
PODDINSULET CORP
33,756$5.6B0.33%
87
CABOT MICROELECTRONICS CORP
48,510$5.5B0.33%
88
TTECTTEC HLDGS INC
149,380$5.5B0.32%
89
SVMKUSDSVMK INC
398,803$5.4B0.32%
90
NVCRNOVOCURE LTD
79,624$5.4B0.32%
91
WEAWESTERN ALLIANCE BANCORP
174,720$5.3B0.32%
92
FSSFEDERAL SIGNAL CORP
194,752$5.3B0.31%
93
PWRQUANTA SVCS INC
165,095$5.2B0.31%
94
PFGCPERFORMANCE FOOD GROUP CO
211,387$5.2B0.31%
95
RRXREGAL BELOIT CORP
82,460$5.2B0.31%
96
ACMAECOM
173,866$5.2B0.31%
97
ATSG*AIR TRANSPORT SERVICES GRP I
282,390$5.2B0.31%
98
BCBRUNSWICK CORP
143,460$5.1B0.30%
99
ABXBARRICK GOLD CORPORATION
276,340$5.1B0.30%
100
RXNEURREXNORD CORP
222,045$5.0B0.30%
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