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
201 COGENT COMMUNICATIONS HLDGS IN COM NEW 221,022 7,853 0.22%
202 BARNES GROUP INC COM 207,543 7,984 0.23%
203 VONAGE HLDGS CORP 1,873,300 7,999 0.23%
204 COMSCORE INC 244,725 8,025 0.23%
205 INTERSIL CORP 622,016 8,036 0.23%
206 G-III APPAREL GROUP LTD 112,494 8,052 0.23%
207 HANCOCK WHITNEY CORPORATION 220,040 8,064 0.23%
208 WRIGHT MEDICAL GROUP NV 260,189 8,084 0.23%
209 HALLIBURTON CO 137,880 8,120 0.23%
210 CARDIOVASCULAR SYS INC DEL COM 259,270 8,242 0.23%
211 ACADIA COMPANY COM 183,311 8,271 0.24%
212 EAGLE MATERIALS INC 94,114 8,344 0.24%
213 Callidus Software Inc 668,906 8,375 0.24%
214 SPDR SERIES TRUST 257,400 8,378 0.24%
215 GLOBAL EAGLE ENTMT INC 533,297 8,415 0.24%
216 ENVISION HEALTHCARE HLDGS INC 248,940 8,422 0.24%
217 INTEGRATED DEVICE TECHNOLOGY 691,677 8,459 0.24%
218 DEXCOM INC 205,370 8,494 0.24%
219 LOGMEIN INC 189,360 8,500 0.24%
220 EXAMWORKS GROUP INC COM 243,619 8,529 0.24%
221 ICONIX BRAND GROUP INC 217,444 8,539 0.24%
222 SALIX PHARMACEUTICALS INC 82,624 8,561 0.24%
223 GLOBUS MED INC 322,174 8,567 0.24%
224 KATE SPADE & CO 231,241 8,577 0.24%
225 PHILLIPS 66 111,900 8,623 0.25%
226 LYONDELLBASELL INDUSTRIES N 98,200 8,734 0.25%
227 HEXCEL CORP NEW COM 201,309 8,765 0.25%
228 ENERGY TRANSFER PRTNRS L P 163,360 8,787 0.25%
229 SPX CORP 90,424 8,890 0.25%
230 JACK IN THE BOX INC 150,925 8,896 0.25%
231 MOBILE MINI INC 205,355 8,904 0.25%
232 REGENERON PHARMACEUTICALS 30,410 9,132 0.26%
233 MARATHON PETE CORP 106,200 9,244 0.26%
234 Marchex Inc 884,817 9,299 0.26%
235 SHORETEL INC 1,087,213 9,350 0.27%
236 INSULET CORPORATION 198,004 9,389 0.27%
237 HEARTLAND EXPRESS INC COM 414,475 9,404 0.27%
238 SPECTRUM BRANDS HLDGS INC 119,081 9,491 0.27%
239 PALO ALTO NETWORKS INC 138,715 9,516 0.27%
240 VERINT SYS INC 203,150 9,534 0.27%
241 KAR AUCTION SVCS INC 314,350 9,541 0.27%
242 ITT Corp 225,856 9,658 0.27%
243 MOTORCAR PTS AMER INC 365,551 9,713 0.28%
244 Acxiom Corp 284,557 9,787 0.28%
245 HONDA MOTOR LTD 277,300 9,800 0.28%
246 POLYONE CORP 268,962 9,860 0.28%
247 HILLSHIRE BRANDS COMPANY 266,295 9,922 0.28%
248 PROOFPOINT INC 268,800 9,967 0.28%
249 BAKER HUGHES INC 157,130 10,217 0.29%
250 MAGELLAN MIDSTREAM PRTNRS LP 147,480 10,285 0.29%
Page 5 of 7