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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 (2016Q2)
Original 13F HR (0001172661-16-003859) filed in 2016.08.15
#
Name
Shares
Value ($)
%
Options
Notes
1 WR GRACE & CO 70,630 5,171 2.22%
2 WR GRACE & CO 6,900 505 0.22% Call
3 WR GRACE & CO 11,100 813 0.35% Call
4 WR GRACE & CO 42,370 3,102 1.33%
5 WALGREENS BOOTS ALLIANCE INC 7,300 608 0.26% Call
6 WALGREENS BOOTS ALLIANCE INC 4,600 383 0.16% Call
7 VULCAN MATLS CO 13,874 1,670 0.72%
8 VULCAN MATLS CO 23,126 2,783 1.19%
9 VAIL RESORTS INC 6,142 849 0.36%
10 VAIL RESORTS INC 9,858 1,363 0.58%
11 UNITED THERAPEUTICS CORP DEL 18,400 1,949 0.83% Call
12 UNITED THERAPEUTICS CORP DEL 11,100 1,176 0.50% Call
13 ULTA BEAUTY INC 14,376 3,503 1.50%
14 ULTA BEAUTY INC 8,624 2,101 0.90%
15 TIME WARNER INC 20,626 1,517 0.65%
16 TIME WARNER INC 12,374 910 0.39%
17 TESARO INCORPORATED 6,563 552 0.24%
18 TESARO INCORPORATED 3,937 331 0.14%
19 STRAIGHT PATH COMMUNICATNS INCORPORATED CLASS B 22,501 623 0.27%
20 STRAIGHT PATH COMMUNICATNS INCORPORATED CLASS B 13,499 374 0.16%
21 SPDR S&P 500 ETF TR 112,500 23,566 10.10% Put
22 SPDR S&P 500 ETF TR 67,500 14,140 6.06% Put
23 SKECHERS U S A INC 20,001 594 0.25%
24 SKECHERS U S A INC 11,999 357 0.15%
25 SIX FLAGS ENTMT CORP NEW 62,250 3,607 1.55%
26 SIX FLAGS ENTMT CORP NEW 103,750 6,012 2.58%
27 SHIRE PLC 4,687 863 0.37%
28 SHIRE PLC 7,813 1,438 0.62%
29 SHAKE SHACK INC 58,124 2,117 0.91%
30 SHAKE SHACK INC 34,876 1,271 0.54%
31 RAPTOR PHARMACEUTICAL CORP 509,120 2,734 1.17%
32 RAPTOR PHARMACEUTICAL CORP 848,880 4,558 1.95%
33 RAPTOR PHARMACEUTICAL CORP 169,900 911 0.39% Call
34 RAPTOR PHARMACEUTICAL CORP 276,100 1,482 0.63% Call
35 OPHTHOTECH CORP 10,872 555 0.24%
36 OPHTHOTECH CORP 18,128 925 0.40%
37 O REILLY AUTOMOTIVE INC NEW 4,575 1,240 0.53%
38 O REILLY AUTOMOTIVE INC NEW 7,625 2,067 0.89%
39 NXSTAGE MED INC COM 26,626 577 0.25%
40 NXSTAGE MED INC COM 44,374 962 0.41%
41 NEVRO CORP COM 52,811 3,895 1.67%
42 NEVRO CORP COM 31,689 2,337 1.00%
43 NETFLIX INC 26,877 2,459 1.05%
44 NETFLIX INC 16,123 1,475 0.63%
45 MICROSOFT CORP 28,751 1,471 0.63%
46 MICROSOFT CORP 17,249 883 0.38%
47 MEDIDATA SOLUTIONS INC 20,624 967 0.41%
48 MEDIDATA SOLUTIONS INC 34,376 1,611 0.69%
49 MASONITE INTL CORP NEW COM 72,235 4,778 2.05%
50 MASONITE INTL CORP NEW COM 43,415 2,871 1.23%
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