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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 (2015Q2)
Portfolio Summary: 369 holdings with a total value of $3,743,406,000.
#
Name
Shares
Value ($)
%
Options
Notes
1 STRYKER CORP 340 32,000 0.00%
2 WALGREENS BOOTS ALLIANCE INC 480 41,000 0.00%
3 CDK GLOBAL INC 1,000 54,000 0.00%
4 PARKER HANNIFIN CORP 500 58,000 0.00%
5 PEABODY ENERGY CORP 32,390 71,000 0.00%
6 MCDONALDS CORP 800 76,000 0.00%
7 ABBOTT LABS 1,800 88,000 0.00%
8 ABBVIE INC 1,800 121,000 0.00%
9 ISHARES NASDAQ BIOTECHNOLOGY ETF 230 124,000 0.00%
10 CATERPILLAR INC 1,500 127,000 0.00%
11 Allergan plc 441 134,000 0.00%
12 DEERE & CO 1,400 136,000 0.00%
13 CISCO SYS INC 5,000 137,000 0.00%
14 INTEL CORP 4,700 143,000 0.00%
15 MICHAEL KORS HLDGS LTD 3,450 145,000 0.00%
16 PEPSICO INC 1,600 149,000 0.00%
17 ANADARKO PETR 2,000 156,000 0.00%
18 MICROSOFT CORP 4,000 177,000 0.00%
19 TRANSOCEAN LTD 11,600 187,000 0.00%
20 ISHARES RUSSELL 2000 GROWTH ETF 1,250 193,000 0.01%
21 TRANSDIGM GROUP INC COM 870 195,000 0.01%
22 CUMMINS INC 1,500 197,000 0.01%
23 ILLINOIS TOOL WKS INC 2,170 199,000 0.01%
24 GENESEE AND WYOMING INC INC CL A 2,750 209,000 0.01%
25 PFIZER INC 6,500 218,000 0.01%
26 AUTOMATIC DATA PROCESSING IN 3,000 241,000 0.01%
27 WHOLE FOODS 6,220 245,000 0.01%
28 CONSOL ENERGY INC 11,830 257,000 0.01%
29 UNIT CORP COM 10,030 272,000 0.01%
30 ULTRA PETROLEUM CORP 23,410 293,000 0.01%
31 PROCTER AND GAMBLE CO 3,800 297,000 0.01%
32 AMGEN INC 2,000 307,000 0.01%
33 PERRIGO CO PLC 1,740 322,000 0.01%
34 NABORS INDUSTRIES LTD 22,400 323,000 0.01%
35 MURPHY USA INC COM 6,145 343,000 0.01%
36 COSTCO WHSL CORP NEW 2,800 378,000 0.01%
37 AMERICAN EXPRESS CO 5,175 402,000 0.01%
38 LINCOLN ELEC HLDGS INC 6,700 408,000 0.01%
39 TJX COS INC NEW 6,840 453,000 0.01%
40 ROWAN COMPANIES PLC SHS CL A 21,880 462,000 0.01%
41 MURPHY OIL 11,460 476,000 0.01%
42 GOODRICH PETE CORP 267,445 497,000 0.01%
43 ISHARES SILVER TR 34,200 514,000 0.01%
44 DRIL-QUIP INC 6,900 519,000 0.01%
45 CARRIZO OIL & GAS INC 10,580 521,000 0.01%
46 RICE ENERGY INC 25,470 531,000 0.01%
47 BONANZA CREEK ENERGY INC 29,215 533,000 0.01%
48 QUALCOMM INC 8,950 561,000 0.01%
49 BORGWARNER INC 10,340 588,000 0.02%
50 TARGA RES CORP 6,930 618,000 0.02%
Page 1 of 8

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001106832-15-000003, filed 2015.08.17).

From 2023-01-03 onward, the SEC requires values to be reported in nearest dollars. Earlier filings reported values in thousands; therefore, positions shown as $0 in older filings may represent actual values between $0–$999.