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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 (2016Q4)
Portfolio Summary: 371 holdings with a total value of $3,135,260,000.
#
Name
Shares
Value ($)
%
Options
Notes
301 PHILLIPS 66 9,610 830,000 0.03%
302 BOEING CO 5,000 778,000 0.02%
303 STATOIL ASA 41,390 755,000 0.02%
304 CNOOC LTD 6,080 754,000 0.02%
305 DENTSPLY SIRONA INC 12,820 740,000 0.02%
306 MONSANTO CO NEW 6,120 644,000 0.02%
307 SEALED AIR CORP NEW 13,840 628,000 0.02%
308 CARRIZO OIL & GAS INC 16,780 627,000 0.02%
309 ENERGY TRANSFER L P 32,100 620,000 0.02%
310 MURPHY USA INC COM 8,745 538,000 0.02%
311 SOCIEDAD QUIMICA Y MINERA DE 18,750 537,000 0.02%
312 TJX COS INC NEW 6,840 514,000 0.02%
313 GALAPAGOS NV 7,890 506,000 0.02%
314 HARLEY DAVIDSON INC 8,363 488,000 0.02%
315 CITIGROUPINC 8,010 476,000 0.02%
316 QUALCOMM INC 6,950 453,000 0.01%
317 COCA COLA CO 10,020 415,000 0.01%
318 ROWAN COMPANIES PLC 21,880 413,000 0.01%
319 SILICON MOTION TECHN 9,710 412,000 0.01%
320 BORGWARNER INC 10,340 408,000 0.01%
321 AMERICAN EXPRESS CO 5,175 383,000 0.01%
322 MYRIAD GENETICS INC 22,760 379,000 0.01%
323 PACCAR INC 5,750 367,000 0.01%
324 NABORS INDUSTRIES LTD 22,400 367,000 0.01%
325 DBV TECHNOLOGIES S A 9,690 340,000 0.01%
326 TAL ED GROUP 4,740 333,000 0.01%
327 ENBRIDGE INC 7,600 320,000 0.01%
328 PROCTER AND GAMBLE CO 3,800 320,000 0.01%
329 AUTOMATIC DATA PROCESSING IN 3,000 308,000 0.01%
330 BONANZA CREEK ENERGY INC 300,400 306,000 0.01%
331 NEWFIELD EXPL CO 7,300 296,000 0.01%
332 AMGEN INC 2,000 292,000 0.01%
333 Nice Systems LTD Sponsored 4,035 277,000 0.01%
334 ILLINOIS TOOL WKS INC 2,170 266,000 0.01%
335 CHINA LODGING GROUP LTD 4,910 255,000 0.01%
336 ISHARES TR 2,600 253,000 0.01%
337 ATLASSIAN CORP PLC 10,180 245,000 0.01%
338 Videocon D2H Ltd 29,010 238,000 0.01%
339 PFIZER INC 6,500 211,000 0.01%
340 DISNEY WALT CO 2,000 208,000 0.01%
341 UNION PAC CORP 2,000 207,000 0.01%
342 ALIBABA GROUP HLDG LTD 2,290 201,000 0.01%
343 ALPHABET INC 230 182,000 0.01%
344 RYANAIR HLDGS PLC 2,095 174,000 0.01%
345 TRANSOCEAN LTD 11,600 171,000 0.01%
346 INTEL CORP 4,700 170,000 0.01%
347 PEPSICO INC 1,600 167,000 0.01%
348 TAIWAN SEMICONDUCTOR MFG LTD 5,710 164,000 0.01%
349 CISCO SYS INC 5,000 151,000 0.00%
350 PERRIGO CO PLC 1,740 145,000 0.00%
Page 7 of 8

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001106832-17-000001, filed 2017.02.15).

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.