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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 (2016Q1)
Portfolio Summary: 44 holdings with a total value of $165,394,000.
#
Name
Shares
Value ($)
%
Options
Notes
1 FACEBOOK INC 84,500 9,641,000 5.83%
2 MARTIN MARIETTA MATLS INC 58,434 9,321,000 5.64%
3 NETFLIX INC 90,000 9,201,000 5.56%
4 MICROSOFT CORP 166,500 9,196,000 5.56%
5 SIX FLAGS ENTMT CORP NEW 133,000 7,380,000 4.46%
6 HOME DEPOT INC 51,000 6,805,000 4.11%
7 SPROUTS FMRS MKT INC 222,000 6,447,000 3.90%
8 Adeptus Health Inc 115,000 6,387,000 3.86%
9 O REILLY AUTOMOTIVE INC NEW 21,500 5,884,000 3.56%
10 ALPHABET INC 7,500 5,588,000 3.38%
11 MASONITE INTL CORP NEW COM 85,000 5,567,000 3.37%
12 EAGLE MATERIALS INC 76,000 5,329,000 3.22%
13 AUTODESK 90,000 5,248,000 3.17%
14 VULCAN MATLS CO 40,335 4,258,000 2.57%
15 WALGREENS BOOTS ALLIANCE INC 49,000 4,128,000 2.50%
16 WR GRACE & CO 56,000 3,986,000 2.41%
17 HORIZON PHARMA PLC 240,000 3,976,000 2.40%
18 MEDIVATION INC 78,900 3,628,000 2.19%
19 GIGAMON INC 115,000 3,567,000 2.16%
20 NEVRO CORP 62,656 3,525,000 2.13%
21 WALGREENS BOOTS ALLIANCE INC 35,700 3,007,000 1.82% Call
22 TIME WARNER INC 39,500 2,865,000 1.73%
23 ISHARES TR 80,000 2,740,000 1.66%
24 SKECHERS U S A INC 87,000 2,649,000 1.60%
25 ADVANCE AUTO PARTS INC 16,000 2,565,000 1.55%
26 UNITED THERAPEUTICS 22,500 2,507,000 1.52% Call
27 EPAM SYS INC 33,000 2,464,000 1.49%
28 CTRIP COM INTL LTD 53,000 2,346,000 1.42%
29 Vaneck Vectors Gold 116,500 2,326,000 1.41%
30 CONSTELLATION BRANDS INC 15,000 2,266,000 1.37%
31 COACH INC 55,000 2,205,000 1.33%
32 WR GRACE & CO 30,000 2,136,000 1.29% Call
33 AETNA INC NEW 18,000 2,022,000 1.22%
34 VAIL RESORTS INC 15,000 2,005,000 1.21%
35 BIOMARIN 24,000 1,980,000 1.20%
36 SHAKE SHACK INC CL A 48,000 1,791,000 1.08%
37 LILLY ELI & CO 24,000 1,728,000 1.04% Call
38 BAIDU INC 8,000 1,527,000 0.92%
39 DUNKIN BRANDS GROUP INC COM 30,000 1,415,000 0.86%
40 ALLERGAN PLC 5,000 1,340,000 0.81%
41 EDWARDS LIFESCIENCES CORP 14,000 1,234,000 0.75%
42 PORTOLA PHARMACEUTICALS INC 27,500 561,000 0.34%
43 NOVOCURE LTD 25,200 365,000 0.22% Call
44 ACADIA PHARMACEUTICALS INC COM 10,300 288,000 0.17% Call

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001172661-16-003405, filed 2016.05.16).

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.