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Institutional Investment Manager
Atika Capital Management LLC
Atika Capital Management LLC (CIK: 0001599731) incorporated in Delaware, located at 475 Tenth Avenue, 14th Floor, New York, NY. Institutional holdings reported to the SEC.

Institutional Holdings (2014Q4)
Portfolio Summary: 69 holdings with a total value of $136,819,000.
#
Name
Shares
Value ($)
%
Options
Notes
1 FACEBOOK INC 93,000 7,256,000 5.30%
2 Receptos Inc 51,500 6,309,000 4.61%
3 ALLERGAN PLC 20,925 5,386,000 3.94%
4 ADVANCE AUTO PARTS INC 33,500 5,336,000 3.90%
5 MASONITE INTL CORP NEW COM 84,500 5,193,000 3.80%
6 ClubCorp Hldgs Inc 244,500 4,384,000 3.20%
7 ILLUMINA INC 22,125 4,084,000 2.98%
8 VITAMIN SHOPPE INC 80,000 3,886,000 2.84% Call
9 ACADIA PHARMACEUTICALS INC COM 118,500 3,762,000 2.75%
10 ABBVIE INC 57,399 3,756,000 2.75%
11 CAESARSTONE LTD 55,350 3,311,000 2.42%
12 UNIVERSAL HLTH SVCS INC 27,660 3,077,000 2.25%
13 AGIOS PHARMACEUTICALS INC 27,000 3,025,000 2.21%
14 LENDINGCLUB CORP 115,000 2,910,000 2.13%
15 TRANSDIGM GROUP INC COM 14,160 2,780,000 2.03%
16 OMNICARE INC 33,000 2,407,000 1.76%
17 CELGENE CORP 21,500 2,405,000 1.76%
18 Allergan plc 11,300 2,402,000 1.76%
19 ISHARES NASDAQ BIOTECHNOLOGY ETF 4,465 2,369,000 1.73%
20 DIAMOND RESORTS INTL INC COM 83,000 2,316,000 1.69%
21 TRUECAR INC 97,000 2,221,000 1.62%
22 AVANIR PHARMACEUTICALS INC CL 128,674 2,181,000 1.59%
23 VITAMIN SHOPPE INC 44,000 2,138,000 1.56%
24 SHIRE PLC 10,000 2,125,000 1.55%
25 LULULEMON ATHLETICA 37,500 2,092,000 1.53%
26 CENTENE CORP DEL 20,000 2,077,000 1.52%
27 DISNEY WALT CO 22,000 2,072,000 1.51%
28 MOTORCAR PTS AMER INC COM 66,000 2,052,000 1.50%
29 HUMANA 12,900 1,853,000 1.35%
30 Receptos Inc 15,000 1,837,000 1.34% Put
31 BLUEBIRD BIO INCORPORATED 19,500 1,789,000 1.31%
32 SPIRIT AIRLS INC 23,000 1,738,000 1.27%
33 ACADIA HEALTHCARE COMPANY IN 28,000 1,714,000 1.25%
34 AMICUS THERAPEUTICS INC 200,000 1,664,000 1.22%
35 INSULET CORPORATION 36,000 1,658,000 1.21%
36 ZOETIS INC 38,000 1,635,000 1.20%
37 EHEALTH INC COM 65,500 1,632,000 1.19%
38 FLAMEL TECHNOLOGIES SA SPONSORED ADR 93,000 1,593,000 1.16%
39 GOOGLE INC 3,010 1,584,000 1.16%
40 ASTRONICS CORP COM 28,000 1,549,000 1.13%
41 Anacor Pharmaceuticals Inc 47,500 1,532,000 1.12%
42 HEALTH NET INC 27,900 1,493,000 1.09%
43 ICICI BANK LIMITED 120,000 1,386,000 1.01%
44 RADIUS HEALTH 33,000 1,284,000 0.94%
45 FLEETCOR TECH 8,000 1,190,000 0.87%
46 BRISTOL MYERS SQUIBB CO 20,000 1,181,000 0.86% Call
47 JAZZ PHARMACEUTICALS PLC SHS USD 7,100 1,162,000 0.85%
48 VERTEX PHARMACEUT 9,500 1,129,000 0.83%
49 ENVISION HEALTHCARE HLDGS INC 31,000 1,075,000 0.79%
50 Adeptus Health Inc 28,000 1,047,000 0.77%
Page 1 of 2

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0000919574-15-001984, filed 2015.02.17).

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.