Atika Capital Management LLC Q4 2016 Filing

Filed February 14, 2017

Portfolio Value

$168.0B

Holdings

54

Report Date

Q4 2016

Filing Type

13F-HR

All Holdings (54 positions)

#StockSharesValue% PortfolioType
1
ADSKAUTODESK INC
127,000$9.4B5.60%
2
BATRKUSDLIBERTY MEDIA CORP DELAWARE
400,400$8.2B4.91%
3
MLMMARTIN MARIETTA MATLS INC
34,000$7.5B4.48%
4
UNHUNITEDHEALTH GROUP INC
37,000$5.9B3.53%
5
MSFTMICROSOFT CORP
90,000$5.6B3.33%
6
GIGAMON INC
122,650$5.6B3.33%
7
GW PHARMACEUTICALS PLC
47,998$5.4B3.19%
8
METAFACEBOOK INC
45,000$5.2B3.08%
9
UALUNITED CONTL HLDGS INC
70,000$5.1B3.04%
10
TESARO INC
36,000$4.8B2.88%
11
NFLXNETFLIX INC
38,000$4.7B2.80%
12
7SUSUMMIT MATLS INC
197,219$4.7B2.79%
13
GKOSGLAUKOS CORP
130,000$4.5B2.65%
14
NVROEURNEVRO CORP
60,000$4.4B2.60%
15
GOOGALPHABET INC
5,300$4.1B2.44%
16
EOGEOG RES INC
40,000$4.0B2.41%
17
AXPAMERICAN EXPRESS CO
54,000$4.0B2.38%
18
AWNADVANCE AUTO PARTS INC
22,500$3.8B2.27%
19
9990302DAPACHE CORP
58,000$3.7B2.19%
20
AERIEURAERIE PHARMACEUTICALS INC
96,500$3.7B2.17%
21
INCYINCYTE CORP
36,000$3.6B2.15%
22
NXSTNEXSTAR BROADCASTING GROUP I
50,000$3.2B1.88%
23
ALLERGAN PLC
14,500$3.0B1.81%
24
DOOREURMASONITE INTL CORP NEW
46,000$3.0B1.80%
25
CNCCENTENE CORP DEL
52,000$2.9B1.75%
26
PIIMPINJ INC
71,500$2.5B1.50%
27
COLUCID PHARMACEUTICALS INC
68,400$2.5B1.48%
28
TWXCHFTIME WARNER INC
25,500$2.5B1.47%
29
MPCMARATHON PETE CORP
46,000$2.3B1.38%
30
SPWHSPORTSMANS WHSE HLDGS INC
245,000$2.3B1.37%
31
JPMJPMORGAN CHASE & CO
25,000$2.2B1.28%
32
ACXIOM CORP
75,000$2.0B1.20%
33
ASIXADVANSIX INC
90,000$2.0B1.19%
34
2U INC
66,050$2.0B1.19%
35
BG3BIG 5 SPORTING GOODS CORP
110,000$1.9B1.14%
36
BMC STK HLDGS INC
97,000$1.9B1.13%
37
MEDIDATA SOLUTIONS INC
38,000$1.9B1.12%
38
CLVSEURCLOVIS ONCOLOGY INC
42,000$1.9B1.11%
39
SIENUSDSIENTRA INC
210,000$1.8B1.07%
40
SHAKSHAKE SHACK INC
50,000$1.8B1.07%
41
ALKSALKERMES PLC
31,000$1.7B1.03%
42
ARRYEURARRAY BIOPHARMA INC
190,000$1.7B0.99%
43
DWDMORGAN STANLEY
38,000$1.6B0.96%
44
MEDICINES CO
44,000$1.5B0.89%
45
GLPGGALAPAGOS NV
23,000$1.5B0.88%
46
DPZDOMINOS PIZZA INC
9,000$1.4B0.85%
47
EX9EXELIXIS INC
80,000$1.2B0.71%
48
RNGRINGCENTRAL INC
55,000$1.1B0.67%
49
MTNVAIL RESORTS INC
6,500$1.0B0.62%
50
TRIPTRIPADVISOR INC
20,000$928.0M0.55%Call
51
NYTNEW YORK TIMES CO
65,500$871.0M0.52%
52
GRUBHUB INC
21,000$790.0M0.47%
53
INC RESH HLDGS INC
13,000$684.0M0.41%
54
AXOVANT SCIENCES LTD
40,000$497.0M0.30%