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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
201 PACCAR INC 772,470 52,095 1.48%
202 PACIRA PHARMACEUTICALS INC 87,339 6,113 0.17%
203 PACWEST BANCORP DEL COM 271,790 11,690 0.33%
204 PALO ALTO NETWORKS INC 138,715 9,516 0.27%
205 PARKER HANNIFIN CORP 637,190 76,278 2.17%
206 PAYCHEX INC 17,350 739 0.02%
207 PEPSICO INC 1,600 134 0.00%
208 PERKINELMER INC 1,156,300 52,103 1.48%
209 PERRIGO CO PLC 1,740 269 0.01%
210 PETROCHINA CO LTD 30,200 3,277 0.09%
211 PETSMART 47,900 3,301 0.09%
212 PFIZER INC 1,253,009 40,247 1.14%
213 PGT INNOVATIONS INC COM 532,221 6,126 0.17%
214 PHARMACYCLICS INC 2,660 267 0.01%
215 PHILLIPS 66 111,900 8,623 0.25%
216 PHILLIPS 66 PARTNERS LP 2,800 136 0.00%
217 PIONEER NAT RES CO 9,300 1,740 0.05%
218 PITNEY BOWES INC 13,500 351 0.01%
219 PLAINS ALL AMERN PIPELINE L 193,570 10,670 0.30%
220 POLYONE CORP 268,962 9,860 0.28%
221 POWERSECURE INTL INC 200,675 4,704 0.13%
222 PRICELINE GRP INC 31,600 37,664 1.07%
223 PROCTER AND GAMBLE CO 3,800 306 0.01%
224 PROOFPOINT INC 268,800 9,967 0.28%
225 Penn Virginia Corp 742,957 12,994 0.37%
226 Plains Gp Hldgs Lp Npv A 93,700 2,622 0.07%
227 Portfolio Recovery Ass 37,700 2,181 0.06%
228 QUALCOMM INC 476,670 37,590 1.07%
229 RADIAN GROUP INC 350,779 5,272 0.15%
230 RAMBUS INC DEL 343,377 3,691 0.10%
231 RANGE RES CORP 611,210 50,712 1.44%
232 REGENERON PHARMACEUTICALS 30,410 9,132 0.26%
233 RENTRAK CORP 54,195 3,267 0.09%
234 RITE AID CORP 71,400 448 0.01%
235 ROWAN COMPANIES PLC 17,900 603 0.02%
236 ROYAL DUTCH SHELL PLC 147,120 10,749 0.31%
237 RPM INTL INC 23,900 1,000 0.03%
238 SALIX PHARMACEUTICALS INC 82,624 8,561 0.24%
239 SCHLUMBERGER LTD 105,980 10,333 0.29%
240 SEALED AIR CORP NEW 38,220 1,256 0.04%
241 SEMGROUP CORP CL A 51,060 3,354 0.10%
242 SHERWIN WILLIAMS CO 310,479 61,205 1.74%
243 SHORETEL INC 1,087,213 9,350 0.27%
244 SILICON MOTION TECHN 339,461 5,696 0.16%
245 SOLERA HOLDINGS INC 123,023 7,792 0.22%
246 SONIC CORP 53,050 1,209 0.03%
247 SOTHEBYS 11,800 514 0.01%
248 SOUTHWEST AIRLS CO 50,450 1,191 0.03%
249 SOUTHWESTERN ENERGY CO 2,244,080 103,250 2.94%
250 SPDR S&P 500 ETF TR 13,200 2,469 0.07%
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