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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
1 SOUTHWESTERN ENERGY CO 2,244,080 103,250 2.94%
2 HOME DEPOT INC 1,085,972 85,933 2.44%
3 EOG RES INC 432,980 84,938 2.42%
4 TJX COS INC NEW 1,286,180 78,007 2.22%
5 PARKER HANNIFIN CORP 637,190 76,278 2.17%
6 XILINX INC 1,350,352 73,284 2.08%
7 COSTCO WHSL CORP NEW 622,600 69,532 1.98%
8 GOOGLE INC 60,140 67,027 1.91%
9 BORGWARNER INC 1,090,200 67,015 1.91%
10 BLACKROCK INC 211,857 66,625 1.89%
11 STARBUCKS CORP 899,600 66,013 1.88%
12 GILEAD SCIENCES INC 925,970 65,614 1.87%
13 HUNT J B TRANS SVCS INC 911,950 65,587 1.86%
14 ORACLE CORP 1,600,100 65,460 1.86%
15 MICHAEL KORS HLDGS LTD 687,000 64,076 1.82%
16 MIDDLEBY CORP 232,191 61,347 1.74%
17 SHERWIN WILLIAMS CO 310,479 61,205 1.74%
18 HARLEY DAVIDSON INC 910,373 60,640 1.72%
19 UNION PAC CORP 320,240 60,096 1.71%
20 PERKINELMER INC 1,156,300 52,103 1.48%
21 PACCAR INC 772,470 52,095 1.48%
22 MASTERCARD INCORPORATED 695,940 51,987 1.48%
23 RANGE RES CORP 611,210 50,712 1.44%
24 HAIN CELESTIAL GROUP INC 516,180 47,194 1.34%
25 NXP SEMICONDUCTORS N V 746,900 43,925 1.25%
26 APPLE INC 79,759 42,810 1.22%
27 BIOGEN INC 134,770 41,222 1.17%
28 PFIZER INC 1,253,009 40,247 1.14%
29 CHICAGO BRIDGE & IRON CO N V 450,808 39,288 1.12%
30 WABTEC CORP 499,620 38,721 1.10%
31 FLEETCOR TECHNOLOGIES INC 331,730 38,182 1.09%
32 PRICELINE GRP INC 31,600 37,664 1.07%
33 QUALCOMM INC 476,670 37,590 1.07%
34 VMWARE INC 342,140 36,958 1.05%
35 CBRE GROUP INC 1,338,338 36,711 1.04%
36 CITIGROUPINC 728,910 34,696 0.99%
37 AMAZON COM INC 101,000 33,973 0.97%
38 SPLUNK INC 456,340 32,624 0.93%
39 STRATASYS LTD 293,780 31,167 0.89%
40 TERADATA CORP DEL 616,330 30,317 0.86%
41 Intuit Inc 161,460 29,860 0.85%
42 ANSYS 373,350 28,755 0.82%
43 U S SILICA HLDGS INC 572,790 21,863 0.62%
44 ENTERPRISE PRODS PARTNERS L 284,450 19,729 0.56%
45 BP PLC 339,200 16,316 0.46%
46 ILLUMINA INC 108,900 16,189 0.46%
47 LIGAND PHARMACEUTICALS INC 236,646 15,919 0.45%
48 EXXON MOBIL CORP 136,600 13,343 0.38%
49 Penn Virginia Corp 742,957 12,994 0.37%
50 TOTAL S A 194,100 12,733 0.36%
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