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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 (2016Q1)
Portfolio Summary: 367 holdings with a total value of $3,202,024,000.
#
Name
Shares
Value ($)
%
Options
Notes
1 ALPHABET INC 88,680 66,062,000 2.06%
2 GENERAL ELECTRIC CO 1,936,980 61,577,000 1.92%
3 HOME DEPOT INC 429,730 57,339,000 1.79%
4 ULTA BEAUTY INC 290,170 56,218,000 1.76%
5 NIKE INC 908,680 55,857,000 1.74%
6 FACEBOOK INC 487,645 55,640,000 1.74%
7 ISHARES TR 967,500 55,302,000 1.73%
8 UNITEDHEALTH GROUP INC 424,510 54,719,000 1.71%
9 EDWARDS LIFESCIENCES CORP 610,180 53,824,000 1.68%
10 DEVON ENERGY CORP NEW 1,913,420 52,504,000 1.64%
11 APPLE INC 478,255 52,125,000 1.63%
12 SALESFORCE COM INC 681,740 50,333,000 1.57%
13 ADOBE INC 518,900 48,673,000 1.52%
14 CME GROUP INC 476,360 45,754,000 1.43%
15 EOG RES INC 627,020 45,509,000 1.42%
16 FEDEX CORP 274,860 44,725,000 1.40%
17 COACH INC 1,096,700 43,967,000 1.37%
18 DISNEY WALT CO 442,320 43,927,000 1.37%
19 JB HUNT TRANSPORT 484,600 40,823,000 1.27%
20 VISA INC 525,530 40,193,000 1.26%
21 NXP SEMICONDUCTORS N V 493,790 40,032,000 1.25%
22 TRANSDIGM GROUP INC COM 179,247 39,495,000 1.23%
23 DELPHI AUTOMOTIVE PLC 509,120 38,194,000 1.19%
24 PALO ALTO NETWORKS 231,120 37,705,000 1.18%
25 SHERWIN WILLIAMS CO 129,400 36,836,000 1.15%
26 BRISTOL MYERS SQUIBB CO 575,580 36,768,000 1.15%
27 STARBUCKS CORP 591,390 35,306,000 1.10%
28 SCHWAB CHARLES CORP 1,234,950 34,603,000 1.08%
29 GILEAD SCIENCES INC 336,910 30,949,000 0.97%
30 CONOCOPHILLIPS 730,155 29,403,000 0.92%
31 CVS HEALTH CORP 279,910 29,035,000 0.91%
32 PIONEER NAT RES CO 205,370 28,904,000 0.90%
33 MOBILEYE N V AMSTELVEEN 763,680 28,478,000 0.89%
34 CONTINENTAL RESOURE 914,860 27,775,000 0.87%
35 CBRE GROUP INC 936,390 26,987,000 0.84%
36 RED HAT INC 329,770 24,571,000 0.77%
37 ORACLE CORP 593,830 24,294,000 0.76%
38 CAVIUM INC 391,386 23,937,000 0.75%
39 MONSTER BEVERAGE COR 173,115 23,090,000 0.72%
40 LIGAND PHARMACEUTICALS INC 213,551 22,869,000 0.71%
41 AMAZON COM INC 37,740 22,404,000 0.70%
42 CHEVRON CORP NEW 229,655 21,909,000 0.68%
43 C.H. ROBINSON WORLDW 259,940 19,295,000 0.60%
44 STERIS PLC SHS USD 271,472 19,288,000 0.60%
45 BEACON ROOFING SUPPLY INC 428,866 17,588,000 0.55%
46 ENTERPRISE PRODS PARTNERS L 708,355 17,440,000 0.54%
47 NUANCE COMM 856,494 16,008,000 0.50%
48 EXXON MOBIL CORP 191,100 15,974,000 0.50%
49 BURLINGTON STORES INC 282,358 15,880,000 0.50%
50 INTERXION HOLDING N.V 453,802 15,692,000 0.49%
Page 1 of 8

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001106832-16-000006, filed 2016.05.17).

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.