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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 VONAGE HLDGS CORP 1,873,300 7,999 0.23%
3 ORACLE CORP 1,600,100 65,460 1.86%
4 XILINX INC 1,350,352 73,284 2.08%
5 CBRE GROUP INC 1,338,338 36,711 1.04%
6 TJX COS INC NEW 1,286,180 78,007 2.22%
7 PFIZER INC 1,253,009 40,247 1.14%
8 PERKINELMER INC 1,156,300 52,103 1.48%
9 BORGWARNER INC 1,090,200 67,015 1.91%
10 SHORETEL INC 1,087,213 9,350 0.27%
11 HOME DEPOT INC 1,085,972 85,933 2.44%
12 Nomura Holdings Inc 1,036,200 6,663 0.19%
13 GILEAD SCIENCES INC 925,970 65,614 1.87%
14 HUNT J B TRANS SVCS INC 911,950 65,587 1.86%
15 HARLEY DAVIDSON INC 910,373 60,640 1.72%
16 STARBUCKS CORP 899,600 66,013 1.88%
17 Marchex Inc 884,817 9,299 0.26%
18 WENDYS CO 855,417 7,801 0.22%
19 JETBLUE AIRWAYS CORP 848,770 7,376 0.21%
20 PACCAR INC 772,470 52,095 1.48%
21 LIONBRIDGE TECHNOLOGIES ORD 770,995 5,173 0.15%
22 NXP SEMICONDUCTORS N V 746,900 43,925 1.25%
23 Penn Virginia Corp 742,957 12,994 0.37%
24 CITIGROUPINC 728,910 34,696 0.99%
25 HORIZON PHARMA PLC 710,928 10,749 0.31%
26 MASTERCARD INCORPORATED 695,940 51,987 1.48%
27 INTEGRATED DEVICE TECHNOLOGY 691,677 8,459 0.24%
28 MICHAEL KORS HLDGS LTD 687,000 64,076 1.82%
29 Callidus Software Inc 668,906 8,375 0.24%
30 MUELLER WTR PRODUCTS INCORPORATED COM SER A 662,248 6,291 0.18%
31 Gastar Exploration, Ltd. 659,497 3,607 0.10%
32 8X8 INC NEW COM 653,382 7,063 0.20%
33 PARKER HANNIFIN CORP 637,190 76,278 2.17%
34 COSTCO WHSL CORP NEW 622,600 69,532 1.98%
35 INTERSIL CORP 622,016 8,036 0.23%
36 TERADATA CORP DEL 616,330 30,317 0.86%
37 RANGE RES CORP 611,210 50,712 1.44%
38 Mueller Industries Inc 602,875 4,510 0.13%
39 GAIN CAP HLDGS INC 601,560 6,503 0.18%
40 U S SILICA HLDGS INC 572,790 21,863 0.62%
41 ATRICURE INC 568,222 10,688 0.30%
42 Actua Corp (ACTA) 567,950 11,598 0.33%
43 FERRO CORP 550,244 7,516 0.21%
44 GLOBAL EAGLE ENTMT INC 533,297 8,415 0.24%
45 PGT INNOVATIONS INC COM 532,221 6,126 0.17%
46 INTRALINKS HLDGS INC 520,768 5,327 0.15%
47 HAIN CELESTIAL GROUP INC 516,180 47,194 1.34%
48 SUMITOMO MITSUI FINL GROUP I 505,000 4,368 0.12%
49 Ishares - Japan 500,000 5,665 0.16%
50 WABTEC CORP 499,620 38,721 1.10%
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