CASTLEARK MANAGEMENT LLC Q4 2016 Filing

Filed February 15, 2017

Portfolio Value

$3.1T

Holdings

371

Report Date

Q4 2016

Filing Type

13F-HR

All Holdings (371 positions)

#StockSharesValue% PortfolioType
101
JBTJOHN BEAN TECHNOLOGIES CORP
116,588$10.0B0.32%
102
AORTCRYOLIFE INC
521,825$10.0B0.32%
103
ONON SEMICONDUCTOR CORP
763,830$9.7B0.31%
104
XHBSPDR SERIES TRUST
286,600$9.7B0.31%
105
WCCWESCO INTL INC
145,050$9.7B0.31%
106
WILLIAMS PARTNERS L P NEW
251,830$9.6B0.31%
107
WRIGHT MED GROUP N V
410,870$9.4B0.30%
108
MEDIDATA SOLUTIONS INC
190,040$9.4B0.30%
109
DEVRY ED GROUP INC
299,335$9.3B0.30%
110
ZELTIQ AESTHETICS INC
214,560$9.3B0.30%
111
VNDAVANDA PHARMACEUTICALS INC
583,960$9.3B0.30%
112
LNGCHENIERE ENERGY INC
224,250$9.3B0.30%
113
SUSUNCOR ENERGY INC NEW
283,850$9.3B0.30%
114
EGRXEAGLE PHARMACEUTICALS INC
116,520$9.2B0.29%
115
CYRUSONE INC
202,330$9.1B0.29%
116
WAGEWORKS INC
124,258$9.0B0.29%
117
DORMDORMAN PRODUCTS INC
121,525$8.9B0.28%
118
ACXIOM CORP
327,385$8.8B0.28%
119
XOMEXXON MOBIL CORP
96,910$8.7B0.28%
120
ENCANA CORP
742,750$8.7B0.28%
121
DEL TACO RESTAURANTS INC
617,490$8.7B0.28%
122
BKRBAKER HUGHES INC
133,900$8.7B0.28%
123
CSIIEURCARDIOVASCULAR SYS INC DEL
358,785$8.7B0.28%
124
DEDEERE & CO
84,143$8.7B0.28%
125
ICLRICON PLC
115,280$8.7B0.28%
126
GVAGRANITE CONSTR INC
155,520$8.6B0.27%
127
RDS/AROYAL DUTCH SHELL PLC
154,930$8.4B0.27%
128
EGHT8X8 INC NEW
586,096$8.4B0.27%
129
WIXWIX COM LTD
187,960$8.4B0.27%
130
SUPNSUPERNUS PHARMACEUTICALS INC
330,541$8.3B0.27%
131
SWN1EURSOUTHWESTERN ENERGY CO
769,800$8.3B0.27%
132
NEONEOGENOMICS INC
971,332$8.3B0.27%
133
UNVREURUNIVAR INC
291,525$8.3B0.26%
134
FAIRMOUNT SANTROL HLDGS INC
700,725$8.3B0.26%
135
PNCPNC FINL SVCS GROUP INC
70,600$8.3B0.26%
136
DSW INC
359,715$8.1B0.26%
137
ICUIICU MED INC
55,055$8.1B0.26%
138
FINANCIAL ENGINES INC
219,705$8.1B0.26%
139
PRIPRIMERICA INC
115,627$8.0B0.26%
140
DIGITALGLOBE INC
276,980$7.9B0.25%
141
SKAASKECHERS U S A INC
320,410$7.9B0.25%
142
IPHIINPHI CORP
175,555$7.8B0.25%
143
ENERGEN CORP
134,960$7.8B0.25%
144
INTERXION HOLDING N.V
221,182$7.8B0.25%
145
JPMJPMORGAN CHASE & CO
88,400$7.6B0.24%
146
RBCRBC BEARINGS INC
82,145$7.6B0.24%
147
WEPMAGELLAN MIDSTREAM PRTNRS LP
97,880$7.4B0.24%
148
FIVNFIVE9 INC
520,209$7.4B0.24%
149
EFAISHARES TR
127,500$7.4B0.23%
150
MPCMARATHON PETE CORP
145,345$7.3B0.23%
151
SFSTIFEL FINL CORP
145,605$7.3B0.23%
152
SSFSENSIENT TECHNOLOGIES CORP
91,587$7.2B0.23%
153
LITELUMENTUM HLDGS INC
186,113$7.2B0.23%
154
TLTISHARES TR
60,000$7.1B0.23%
155
RRCRANGE RES CORP
207,290$7.1B0.23%
156
WPX ENERGY INC
479,805$7.0B0.22%
157
WMBWILLIAMS COS INC DEL
224,400$7.0B0.22%
158
MPLXMPLX LP
201,749$7.0B0.22%
159
HEALTHWAYS INC
302,050$6.9B0.22%
160
FANGDIAMONDBACK ENERGY INC
66,852$6.8B0.22%
161
GREAT WESTN BANCORP INC
152,270$6.6B0.21%
162
SPECTRANETICS CORP
267,840$6.6B0.21%
163
9990302DAPACHE CORP
102,610$6.5B0.21%
164
BARRACUDA NETWORKS INC
303,581$6.5B0.21%
165
XECEURCIMAREX ENERGY CO
46,810$6.4B0.20%
166
KLX INC
135,755$6.1B0.20%
167
OCLARO INC
683,270$6.1B0.20%
168
LOGILOGITECH INTL S A
246,445$6.1B0.19%
169
BACBANK AMER CORP
275,800$6.1B0.19%
170
SLBSCHLUMBERGER LTD
72,291$6.1B0.19%
171
TTENTOTAL S A
118,440$6.0B0.19%
172
HDSNHUDSON TECHNOLOGIES INC
748,023$6.0B0.19%
173
COPCONOCOPHILLIPS
119,060$6.0B0.19%
174
WESWESTERN GAS PARTNERS LP
100,785$5.9B0.19%
175
RICEEURRICE ENERGY INC
277,270$5.9B0.19%
176
OASEUROASIS PETE INC NEW
387,945$5.9B0.19%
177
FISVFISERV INC
54,694$5.8B0.19%
178
ONEOK PARTNERS LP
131,970$5.7B0.18%
179
WCNWASTE CONNECTIONS INC
71,980$5.7B0.18%
180
CXOEURCONCHO RES INC
42,000$5.6B0.18%
181
ISRGINTUITIVE SURGICAL INC
8,350$5.3B0.17%
182
CBOECBOE HLDGS INC
71,660$5.3B0.17%
183
PAAPLAINS ALL AMERN PIPELINE L
163,860$5.3B0.17%
184
PDFSPDF SOLUTIONS INC
232,043$5.2B0.17%
185
HEWGUSDISHARES TR
200,000$5.2B0.16%
186
XLNXEURXILINX INC
85,320$5.2B0.16%
187
CECELANESE CORP DEL
65,085$5.1B0.16%
188
RPREALPAGE INC
170,293$5.1B0.16%
189
LECOLINCOLN ELEC HLDGS INC
66,120$5.1B0.16%
190
PTENPATTERSON UTI ENERGY INC
186,000$5.0B0.16%
191
TRGPTARGA RES CORP
86,530$4.9B0.15%
192
FFIVF5 NETWORKS INC
32,810$4.7B0.15%
193
ZAYOEURZAYO GROUP HLDGS INC
143,690$4.7B0.15%
194
VISNCOMMSCOPE HLDG CO INC
126,730$4.7B0.15%
195
APCANADARKO PETE CORP
65,900$4.6B0.15%
196
HOLXHOLOGIC INC
113,100$4.5B0.14%
197
RICE MIDSTREAM PARTNERS LP
178,970$4.4B0.14%
198
PROPROS HOLDINGS INC
203,750$4.4B0.14%
199
NXPINXP SEMICONDUCTORS N V
44,421$4.4B0.14%
200
AJGGALLAGHER ARTHUR J & CO
83,085$4.3B0.14%
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