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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
51 GLAUKOS CORP 70,629 2,060 0.88%
52 GLAUKOS CORP 42,371 1,236 0.53%
53 GRUBHUB INC 41,254 1,282 0.55%
54 GRUBHUB INC 24,746 769 0.33%
55 GW PHARMACEUTICALS PLC 6,374 584 0.25%
56 GW PHARMACEUTICALS PLC 10,626 973 0.42%
57 HALYARD HEALTH INC 24,367 792 0.34%
58 HALYARD HEALTH INC 40,633 1,321 0.57%
59 HORIZON PHARMA PLC 270,652 4,458 1.91%
60 HORIZON PHARMA PLC 162,348 2,674 1.15%
61 HUMANA INC 2,625 472 0.20%
62 HUMANA INC 4,375 787 0.34%
63 INTUITIVE SURGICAL INC 3,150 2,083 0.89%
64 INTUITIVE SURGICAL INC 5,250 3,472 1.49%
65 LIBERTY MEDIA CORP DEL 158,783 2,328 1.00%
66 LIBERTY MEDIA CORP DEL 95,217 1,396 0.60%
67 LILLY ELI & CO 9,000 709 0.30% Call
68 LILLY ELI & CO 15,000 1,181 0.51% Call
69 MARTIN MARIETTA MATLS INC 30,627 5,880 2.52%
70 MARTIN MARIETTA MATLS INC 18,373 3,528 1.51%
71 MASONITE INTL CORP NEW COM 43,415 2,871 1.23%
72 MASONITE INTL CORP NEW COM 72,235 4,778 2.05%
73 MEDIDATA SOLUTIONS INC 34,376 1,611 0.69%
74 MEDIDATA SOLUTIONS INC 20,624 967 0.41%
75 MICROSOFT CORP 28,751 1,471 0.63%
76 MICROSOFT CORP 17,249 883 0.38%
77 NETFLIX INC 26,877 2,459 1.05%
78 NETFLIX INC 16,123 1,475 0.63%
79 NEVRO CORP COM 52,811 3,895 1.67%
80 NEVRO CORP COM 31,689 2,337 1.00%
81 NXSTAGE MED INC COM 44,374 962 0.41%
82 NXSTAGE MED INC COM 26,626 577 0.25%
83 O REILLY AUTOMOTIVE INC NEW 7,625 2,067 0.89%
84 O REILLY AUTOMOTIVE INC NEW 4,575 1,240 0.53%
85 OPHTHOTECH CORP 18,128 925 0.40%
86 OPHTHOTECH CORP 10,872 555 0.24%
87 RAPTOR PHARMACEUTICAL CORP 169,900 911 0.39% Call
88 RAPTOR PHARMACEUTICAL CORP 848,880 4,558 1.95%
89 RAPTOR PHARMACEUTICAL CORP 509,120 2,734 1.17%
90 RAPTOR PHARMACEUTICAL CORP 276,100 1,482 0.63% Call
91 SHAKE SHACK INC 34,876 1,271 0.54%
92 SHAKE SHACK INC 58,124 2,117 0.91%
93 SHIRE PLC 7,813 1,438 0.62%
94 SHIRE PLC 4,687 863 0.37%
95 SIX FLAGS ENTMT CORP NEW 103,750 6,012 2.58%
96 SIX FLAGS ENTMT CORP NEW 62,250 3,607 1.55%
97 SKECHERS U S A INC 11,999 357 0.15%
98 SKECHERS U S A INC 20,001 594 0.25%
99 SPDR S&P 500 ETF TR 112,500 23,566 10.10% Put
100 SPDR S&P 500 ETF TR 67,500 14,140 6.06% Put
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