Dark
Light
System
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 (2014Q1)
Original 13F HR (0001106832-14-000002) filed in 2014.05.20
#
Name
Shares
Value ($)
%
Options
Notes
51 STRATASYS LTD 293,780 31,167 0.89%
52 STERICYCLE INC 30,600 3,477 0.10%
53 STATOIL ASA 153,600 4,335 0.12%
54 STARBUCKS CORP 899,600 66,013 1.88%
55 SPX CORP 90,424 8,890 0.25%
56 SPLUNK INC 456,340 32,624 0.93%
57 SPECTRUM BRANDS HLDGS INC 119,081 9,491 0.27%
58 SPECTRANETICS CORP 251,341 7,618 0.22%
59 SPDR SERIES TRUST 257,400 8,378 0.24%
60 SPDR S&P 500 ETF TR 13,200 2,469 0.07%
61 SOUTHWESTERN ENERGY CO 2,244,080 103,250 2.94%
62 SOUTHWEST AIRLS CO COM 50,450 1,191 0.03%
63 SOTHEBYS 11,800 514 0.01%
64 SONIC CORP 53,050 1,209 0.03%
65 SOLERA HOLDINGS INC 123,023 7,792 0.22%
66 SILICON MOTION TECHNOLOGY CO 339,461 5,696 0.16%
67 SHORETEL INC 1,087,213 9,350 0.27%
68 SHERWIN WILLIAMS CO 310,479 61,205 1.74%
69 SEMGROUP CORP 51,060 3,354 0.10%
70 SEALED AIR CORP NEW 38,220 1,256 0.04%
71 SCHLUMBERGER LTD 105,980 10,333 0.29%
72 SALIX PHARMACEUTICALS INC 82,624 8,561 0.24%
73 Rowan Companies Inc Class A 17,900 603 0.02%
74 RPM INTL INC 23,900 1,000 0.03%
75 ROYAL DUTCH SHELL PLC 147,120 10,749 0.31%
76 RITE AID CORP 71,400 448 0.01%
77 RENTRAK CORP 54,195 3,267 0.09%
78 REGENERON PHARMACEUTICALS 30,410 9,132 0.26%
79 RANGE RESOURCES CORPORATION CMN 611,210 50,712 1.44%
80 RAMBUS INC DEL 343,377 3,691 0.10%
81 RADIAN GROUP INC 350,779 5,272 0.15%
82 QUALCOMM INC 476,670 37,590 1.07%
83 Portfolio Recovery Ass 37,700 2,181 0.06%
84 Perrigo Co Plc 1,740 269 0.01%
85 Penn Virginia Corp 742,957 12,994 0.37%
86 PROOFPOINT INC 268,800 9,967 0.28%
87 PROCTER & GAMBLE 3,800 306 0.01%
88 PRICELINE GRP INC 31,600 37,664 1.07%
89 POWERSECURE INTL INC 200,675 4,704 0.13%
90 POLYONE CORP 268,962 9,860 0.28%
91 PLAINS GP HOLDINGS LP 93,700 2,622 0.07%
92 PLAINS ALL AMERN PIPELINE L 193,570 10,670 0.30%
93 PITNEY BOWES INC 13,500 351 0.01%
94 PIONEER NAT RES CO 9,300 1,740 0.05%
95 PHILLIPS 66 PARTNERS LP 2,800 136 0.00%
96 PHILLIPS 66 111,900 8,623 0.25%
97 PHARMACYCLICS INC 2,660 267 0.01%
98 PGT INNOVATIONS INC 532,221 6,126 0.17%
99 PFIZER INC 1,253,009 40,247 1.14%
100 PETSMART 47,900 3,301 0.09%
Page 2 of 7