0001172661-18-000769.txt : 20180214 0001172661-18-000769.hdr.sgml : 20180214 20180214160119 ACCESSION NUMBER: 0001172661-18-000769 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20171231 FILED AS OF DATE: 20180214 DATE AS OF CHANGE: 20180214 EFFECTIVENESS DATE: 20180214 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Atika Capital Management LLC CENTRAL INDEX KEY: 0001599731 IRS NUMBER: 000000000 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 13F-HR SEC ACT: 1934 Act SEC FILE NUMBER: 028-15941 FILM NUMBER: 18612116 BUSINESS ADDRESS: STREET 1: 475 TENTH AVENUE, 12TH FLOOR CITY: NEW YORK STATE: NY ZIP: 10018 BUSINESS PHONE: 212-408-2700 MAIL ADDRESS: STREET 1: 475 TENTH AVENUE, 12TH FLOOR CITY: NEW YORK STATE: NY ZIP: 10018 13F-HR 1 primary_doc.xml 13F-HR LIVE false true false 0001599731 XXXXXXXX 12-31-2017 12-31-2017 false Atika Capital Management LLC

475 Tenth Avenue, 12th Floor New York NY 10018

13F HOLDINGS REPORT 028-15941 N Brad Farber 212-408-2772 /s/ Brad Farber New York NY 02-14-2018 1 130 258674 1 0001568986 028-16711 Atika Capital Partners LP INFORMATION TABLE 2 infotable.xml 2U INC COM 90214J101 1683 26087 SH SOLE 26087 0 0 2U INC COM 90214J101 3800 58913 SH DFND 1 58913 0 0 ABBVIE INC COM 00287Y109 3984 41200 SH Call DFND 1 41200 0 0 ABBVIE INC COM 00287Y109 1818 18800 SH Call SOLE 18800 0 0 ACTIVISION BLIZZARD INC COM 00507V109 3278 51772 SH DFND 1 51772 0 0 ACTIVISION BLIZZARD INC COM 00507V109 1452 22928 SH SOLE 22928 0 0 ADVANSIX INC COM 00773T101 1356 32224 SH SOLE 32224 0 0 ADVANSIX INC COM 00773T101 3062 72776 SH DFND 1 72776 0 0 AERIE PHARMACEUTICALS INC COM 00771V108 2717 45465 SH DFND 1 45465 0 0 AERIE PHARMACEUTICALS INC COM 00771V108 1203 20135 SH SOLE 20135 0 0 AIMMUNE THERAPEUTICS INC COM 00900T107 2229 58925 SH DFND 1 58925 0 0 AIMMUNE THERAPEUTICS INC COM 00900T107 986 26075 SH SOLE 26075 0 0 ALIGN TECHNOLOGY INC COM 016255101 5544 24951 SH DFND 1 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