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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 (2014Q1)
Original 13F HR (0001106832-14-000002) filed in 2014.05.20
#
Name
Shares
Value ($)
%
Options
Notes
51 ISHARES SILVER TR 34,200 651 0.02%
52 BROADCOM CORP CL A 21,300 670 0.02%
53 Dentsply Intl Inc 14,800 681 0.02%
54 MONSANTO CO NEW 6,120 696 0.02%
55 PAYCHEX INC 17,350 739 0.02%
56 DRIL-QUIP INC 6,900 773 0.02%
57 JARDEN CORP 13,000 778 0.02%
58 F5 NETWORKS INC 7,500 800 0.02%
59 AMERICAN EXPRESS CO 8,970 808 0.02%
60 TIVO INC 63,800 844 0.02%
61 MYRIAD GENETICS INC 26,500 906 0.03%
62 HELMERICH & PAYNE INC 8,800 947 0.03%
63 WATERS CORP 8,800 954 0.03%
64 MICROCHIP TECHNOLOGY 20,150 962 0.03%
65 RPM INTL INC 23,900 1,000 0.03%
66 CONCHO RESOURCES 8,400 1,029 0.03%
67 KINDER MORGAN MANAGEMENT LLC 14,727 1,055 0.03%
68 CAMERON INTERNATIONAL COMPANY 17,600 1,087 0.03%
69 HOLLYFRONTIER CORP 23,900 1,137 0.03%
70 ONEOK INC NEW 19,600 1,161 0.03%
71 FOREST LABS INC COM 12,800 1,181 0.03%
72 SUNCOR ENERGY INC NEW 33,990 1,188 0.03%
73 SOUTHWEST AIRLS CO 50,450 1,191 0.03%
74 SONIC CORP 53,050 1,209 0.03%
75 SEALED AIR CORP NEW 38,220 1,256 0.04%
76 DST SYS INC DEL 13,900 1,318 0.04%
77 LINN ENERGY LLC UNIT LTD LIAB 46,900 1,328 0.04%
78 CINTAS CORP 22,400 1,335 0.04%
79 ALTERA CORPORATION 38,151 1,382 0.04%
80 BONANZA CREEK ENERGY INC 31,215 1,386 0.04%
81 ONEOK PARTNERS LP 26,160 1,401 0.04%
82 CNOOC LTD 10,100 1,533 0.04%
83 ABBOTT LABS 41,800 1,610 0.05%
84 ISHARES TR 40,900 1,677 0.05%
85 PIONEER NAT RES CO 9,300 1,740 0.05%
86 TRANSCANADA CORP 42,700 1,944 0.06%
87 BHP BILLITON LTD 29,500 1,999 0.06%
88 MOOG INC CL A 31,200 2,044 0.06%
89 VARIAN MED SYS INC 24,760 2,080 0.06%
90 GENTEX CORP 66,060 2,083 0.06%
91 IMPERIAL OIL LTD 45,700 2,127 0.06%
92 Portfolio Recovery Ass 37,700 2,181 0.06%
93 MPLX LP 45,300 2,219 0.06%
94 EMERGE ENERGY SVCS LP 35,800 2,227 0.06%
95 VERTEX PHARMACEUTICALS INC 31,830 2,251 0.06%
96 DICKS SPORTING GOODS INC 41,410 2,261 0.06%
97 FASTENAL CO 46,000 2,268 0.06%
98 GENESIS ENERGY LP COM UNITS NPV 42,450 2,301 0.07%
99 SUMMIT MIDSTREAM PARTNERS LP 54,200 2,323 0.07%
100 TARGA RES CORP 23,900 2,372 0.07%
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