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Institutional Investment Manager
CASTLEARK MANAGEMENT LLC
CASTLEARK MANAGEMENT LLC (CIK: 0001106832), located at 1 N Wacker Dr, Chicago, IL. Institutional holdings reported to the SEC.

Institutional Holdings (2017Q1)
Original 13F HR (0001106832-17-000003) filed in 2017.05.15
#
Name
Shares
Value ($)
%
Options
Notes
51 BWX TECHNOLOGIES INC COM 320,940 15,277 0.48%
52 SPLUNK INC 243,693 15,180 0.48%
53 Wright Medical Group NV 487,090 15,158 0.47%
54 NEVRO CORP COM 160,655 15,053 0.47%
55 DIEBOLD NXDF INC 489,750 15,035 0.47%
56 MICROSEMI CORP 289,930 14,940 0.47%
57 DEERE & CO 135,671 14,769 0.46%
58 PRIMERICA INC 178,355 14,661 0.46%
59 NEXSTAR MEDIA GROUP INC 207,750 14,574 0.46%
60 MARVELL TECHNOLOGY GROUP LTD 954,990 14,573 0.46%
61 VISTEON CORP COM NEW 148,695 14,565 0.46%
62 TAKE-TWO INTERACTIVE SOFTWAR 244,870 14,513 0.45%
63 UNIVAR INC 468,430 14,362 0.45%
64 NUVASIVE INC 188,035 14,042 0.44%
65 ZEBRA TECHNOLOGIES CORPORATION CL A 152,720 13,936 0.44%
66 OLD DOMINION FREIGHT LINE IN 159,385 13,639 0.43%
67 CINEMARK HOLDINGS INC 306,440 13,588 0.43%
68 SHOPIFY INC 198,670 13,527 0.42%
69 TIMKEN CO COM 298,340 13,485 0.42%
70 KENNAMETAL INC 340,000 13,338 0.42%
71 BOYD GAMING CORP COM 605,890 13,336 0.42%
72 MERCURY SYS INC COM 339,096 13,242 0.41%
73 POWERSHARES QQQ TRUST 100,000 13,238 0.41%
74 CHENIERE ENERGY INC 280,040 13,237 0.41%
75 UNIVERSAL DISPLAY CORP 153,135 13,185 0.41%
76 RINGCENTRAL INC 464,970 13,159 0.41%
77 INTERXION HOLDING N.V 330,802 13,087 0.41%
78 VONAGE HLDGS CORP 2,066,900 13,063 0.41%
79 LIONS GATE ENTMNT CORP CL A VTG 490,769 13,035 0.41%
80 CYPRESS SEMICONDUCTOR CORP 946,330 13,022 0.41%
81 STARBUCKS CORP 218,726 12,771 0.40%
82 BURLINGTON STORES INC 130,625 12,709 0.40%
83 ON SEMICONDUCTOR CORP 808,550 12,524 0.39%
84 GREEN DOT CORP CL A 366,945 12,241 0.38%
85 BERRY PLASTICS GROUP INC 250,840 12,183 0.38%
86 LOUISIANA PAC CORP 490,035 12,163 0.38%
87 EXELIXIS INC 540,570 11,714 0.37%
88 DIAMONDBACK ENERGY INC 112,042 11,620 0.36%
89 BANK AMER CORP 485,800 11,460 0.36%
90 COHERENT INC 55,350 11,382 0.36%
91 FINANCIAL ENGINES INC 260,968 11,365 0.36%
92 BIOVERATIV INC 202,510 11,029 0.35%
93 TESARO INCORPORATED 71,445 10,993 0.34%
94 FLEETCOR TECHNOLOGIES INC 71,872 10,884 0.34%
95 CHEVRON CORP NEW 101,235 10,870 0.34%
96 HALLIBURTON CO 219,690 10,811 0.34%
97 ITRON INC 177,660 10,784 0.34%
98 TOTAL S A 213,320 10,756 0.34%
99 JPMORGAN CHASE & CO 122,100 10,725 0.34%
100 DEVRY EDUCATION 301,600 10,692 0.34%
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