0001172661-18-002154.txt : 20181114 0001172661-18-002154.hdr.sgml : 20181114 20181114160023 ACCESSION NUMBER: 0001172661-18-002154 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20180930 FILED AS OF DATE: 20181114 DATE AS OF CHANGE: 20181114 EFFECTIVENESS DATE: 20181114 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: 181183430 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 09-30-2018 09-30-2018 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 11-14-2018 1 172 557603 1 0001568986 028-16711 Atika Capital Partners LP INFORMATION TABLE 2 infotable.xml 2U INC COM 90214J101 1478 19653 SH SOLE 19653 0 0 2U INC COM 90214J101 3522 46847 SH DFND 1 46847 0 0 ACTIVISION BLIZZARD INC COM 00507V109 1388 16680 SH DFND 1 16680 0 0 ACTIVISION BLIZZARD INC COM 00507V109 609 7320 SH SOLE 7320 0 0 ADVANSIX INC COM 00773T101 944 27801 SH DFND 1 27801 0 0 ADVANSIX INC COM 00773T101 414 12199 SH SOLE 12199 0 0 ALIGN TECHNOLOGY INC COM 016255101 5438 13900 SH DFND 1 13900 0 0 ALIGN TECHNOLOGY INC COM 016255101 2386 6100 SH SOLE 6100 0 0 ALLAKOS INC COM 01671P100 1304 28994 SH SOLE 28994 0 0 ALLAKOS INC COM 01671P100 2973 66077 SH DFND 1 66077 0 0 AMAZON COM INC COM 023135106 7874 3931 SH DFND 1 3931 0 0 AMAZON COM INC COM 023135106 3443 1719 SH SOLE 1719 0 0 ANTHEM INC COM 036752103 4762 17376 SH DFND 1 17376 0 0 ANTHEM INC COM 036752103 2089 7624 SH SOLE 7624 0 0 ARENA PHARMACEUTICALS INC COM NEW 040047607 5754 125026 SH DFND 1 125026 0 0 ARENA PHARMACEUTICALS INC COM NEW 040047607 2530 54974 SH SOLE 54974 0 0 ARENA PHARMACEUTICALS INC COM NEW 040047607 801 17400 SH Call DFND 1 17400 0 0 ARENA PHARMACEUTICALS INC COM NEW 040047607 350 7600 SH Call SOLE 7600 0 0 ARGENX SE SPONSORED ADR 04016X101 3354 44226 SH DFND 1 44226 0 0 ARGENX SE SPONSORED ADR 04016X101 1472 19404 SH SOLE 19404 0 0 ARISTA NETWORKS INC COM 040413106 1759 6615 SH DFND 1 6615 0 0 ARISTA NETWORKS INC COM 040413106 767 2885 SH SOLE 2885 0 0 ASHLAND GLOBAL HLDGS INC COM 044186104 4888 58282 SH DFND 1 58282 0 0 ASHLAND GLOBAL HLDGS INC COM 044186104 2090 24918 SH SOLE 24918 0 0 ATLASSIAN CORP PLC CL A G06242104 4607 47921 PRN DFND 1 47921 0 0 ATLASSIAN CORP PLC CL A G06242104 2027 21079 PRN SOLE 21079 0 0 AUTODESK INC COM 052769106 1518 9723 SH DFND 1 9723 0 0 AUTODESK INC COM 052769106 668 4277 SH SOLE 4277 0 0 BIO RAD LABS INC CL A 090572207 3587 11460 SH DFND 1 11460 0 0 BIO RAD LABS INC CL A 090572207 1577 5040 SH SOLE 5040 0 0 BIOMARIN PHARMACEUTICAL INC COM 09061G101 1533 15800 SH Call SOLE 15800 0 0 BIOMARIN PHARMACEUTICAL INC COM 09061G101 3500 36100 SH Call DFND 1 36100 0 0 BLUEBIRD BIO INC COM 09609G100 1859 12734 SH DFND 1 12734 0 0 BLUEBIRD BIO INC COM 09609G100 783 5366 SH SOLE 5366 0 0 BRISTOL MYERS SQUIBB CO COM 110122108 3203 51600 SH Call DFND 1 51600 0 0 BRISTOL MYERS SQUIBB CO COM 110122108 1453 23400 SH Call SOLE 23400 0 0 CANADA GOOSE HOLDINGS INC SHS SUB VTG 135086106 2512 38920 SH DFND 1 38920 0 0 CANADA GOOSE HOLDINGS INC SHS SUB VTG 135086106 1102 17080 SH SOLE 17080 0 0 CENTENE CORP DEL COM 15135B101 4025 27800 SH DFND 1 27800 0 0 CENTENE CORP DEL COM 15135B101 1766 12200 SH SOLE 12200 0 0 CF INDS HLDGS INC COM 125269100 2157 39616 SH DFND 1 39616 0 0 CF INDS HLDGS INC COM 125269100 946 17384 SH SOLE 17384 0 0 CRISPR THERAPEUTICS AG NAMEN AKT H17182108 608 13700 PRN Call DFND 1 13700 0 0 CRISPR THERAPEUTICS AG NAMEN AKT H17182108 279 6300 PRN Call SOLE 6300 0 0 DEXCOM INC COM 252131107 11623 81258 SH DFND 1 81258 0 0 DEXCOM INC COM 252131107 5113 35742 SH SOLE 35742 0 0 EHEALTH INC COM 28238P109 2470 87415 SH DFND 1 87415 0 0 EHEALTH INC COM 28238P109 1080 38218 SH SOLE 38218 0 0 ENDOCYTE INC COM 29269A102 3765 211990 SH DFND 1 211990 0 0 ENDOCYTE INC COM 29269A102 1652 93010 SH SOLE 93010 0 0 EPAM SYS INC COM 29414B104 3304 23997 SH DFND 1 23997 0 0 EPAM SYS INC COM 29414B104 1405 10203 SH SOLE 10203 0 0 ETSY INC COM 29786A106 2607 50739 SH DFND 1 50739 0 0 ETSY INC COM 29786A106 1144 22261 SH SOLE 22261 0 0 EVENTBRITE INC COM CL A 29975E109 1448 38124 SH SOLE 38124 0 0 EVENTBRITE INC COM CL A 29975E109 3299 86876 SH DFND 1 86876 0 0 EXACT SCIENCES CORP COM 30063P105 6851 86810 SH DFND 1 86810 0 0 EXACT SCIENCES CORP COM 30063P105 3014 38190 SH SOLE 38190 0 0 FACEBOOK INC CL A 30303M102 2057 12509 SH DFND 1 12509 0 0 FACEBOOK INC CL A 30303M102 903 5491 SH SOLE 5491 0 0 FIVE BELOW INC COM 33829M101 3345 25717 SH DFND 1 25717 0 0 FIVE BELOW INC COM 33829M101 1467 11283 SH SOLE 11283 0 0 GALAPAGOS NV SPON ADR 36315X101 2215 19702 SH SOLE 19702 0 0 GALAPAGOS NV SPON ADR 36315X101 5105 45398 SH DFND 1 45398 0 0 GRACE W R & CO DEL NEW COM 38388F108 1812 25356 SH SOLE 25356 0 0 GRACE W R & CO DEL NEW COM 38388F108 4119 57644 SH DFND 1 57644 0 0 GRUBHUB INC COM 400110102 3081 22225 SH DFND 1 22225 0 0 GRUBHUB INC COM 400110102 1355 9775 SH SOLE 9775 0 0 GW PHARMACEUTICALS PLC ADS 36197T103 3482 20156 SH DFND 1 20156 0 0 GW PHARMACEUTICALS PLC ADS 36197T103 1528 8844 SH SOLE 8844 0 0 HUBSPOT INC COM 443573100 6295 41701 SH DFND 1 41701 0 0 HUBSPOT INC COM 443573100 2762 18299 SH SOLE 18299 0 0 ICU MED INC COM 44930G107 1965 6950 SH DFND 1 6950 0 0 ICU MED INC COM 44930G107 862 3050 SH SOLE 3050 0 0 ILLUMINA INC COM 452327109 3059 8335 SH DFND 1 8335 0 0 ILLUMINA INC COM 452327109 1345 3665 SH SOLE 3665 0 0 INOGEN INC COM 45780L104 1119 4583 SH SOLE 4583 0 0 INOGEN INC COM 45780L104 2543 10417 SH DFND 1 10417 0 0 INSPIRE MED SYS INC COM 457730109 3697 87852 SH DFND 1 87852 0 0 INSPIRE MED SYS INC COM 457730109 1622 38548 SH SOLE 38548 0 0 INSULET CORP COM 45784P101 3608 34056 SH DFND 1 34056 0 0 INSULET CORP COM 45784P101 1583 14944 SH SOLE 14944 0 0 INTREXON CORP COM 46122T102 239 13900 SH Put DFND 1 13900 0 0 INTREXON CORP COM 46122T102 105 6100 SH Put SOLE 6100 0 0 INTUITIVE SURGICAL INC COM NEW 46120E602 7694 13404 SH DFND 1 13404 0 0 INTUITIVE SURGICAL INC COM NEW 46120E602 3384 5896 SH SOLE 5896 0 0 INVESCO QQQ TR UNIT SER 1 46090E103 8491 45700 SH Put SOLE 45700 0 0 INVESCO QQQ TR UNIT SER 1 46090E103 19377 104300 SH Put DFND 1 104300 0 0 ISHARES TR RUSSELL 2000 ETF 464287655 29312 173900 SH Put DFND 1 173900 0 0 ISHARES TR RUSSELL 2000 ETF 464287655 12827 76100 SH Put SOLE 76100 0 0 LIBERTY MEDIA CORP DELAWARE COM C BRAVES GRP 531229888 8576 314719 SH DFND 1 314719 0 0 LIBERTY MEDIA CORP DELAWARE COM C BRAVES GRP 531229888 3672 134737 SH SOLE 134737 0 0 LIBERTY MEDIA CORP DELAWARE COM SER C FRMLA 531229854 3182 85568 SH DFND 1 85568 0 0 LIBERTY MEDIA CORP DELAWARE COM SER C FRMLA 531229854 1392 37432 SH SOLE 37432 0 0 LIBERTY MEDIA CORP DELAWARE COM SER C FRMLA 531229854 1034 27800 SH Call DFND 1 27800 0 0 LIBERTY MEDIA CORP DELAWARE COM SER C FRMLA 531229854 454 12200 SH Call SOLE 12200 0 0 LIVANOVA PLC SHS G5509L101 1896 15290 SH DFND 1 15290 0 0 LIVANOVA PLC SHS G5509L101 4438 35800 SH Call SOLE 35800 0 0 LIVANOVA PLC SHS G5509L101 832 6710 SH SOLE 6710 0 0 LIVANOVA PLC SHS G5509L101 10129 81700 SH Call DFND 1 81700 0 0 LOXO ONCOLOGY INC COM 548862101 2019 11816 SH DFND 1 11816 0 0 LOXO ONCOLOGY INC COM 548862101 886 5184 SH SOLE 5184 0 0 MADRIGAL PHARMACEUTICALS INC COM 558868105 2082 9722 SH DFND 1 9722 0 0 MADRIGAL PHARMACEUTICALS INC COM 558868105 916 4278 SH SOLE 4278 0 0 MARTIN MARIETTA MATLS INC COM 573284106 2907 15976 SH DFND 1 15976 0 0 MARTIN MARIETTA MATLS INC COM 573284106 1278 7024 SH SOLE 7024 0 0 MEDICINES CO COM 584688105 417 13926 SH DFND 1 13926 0 0 MEDICINES CO COM 584688105 1710 57200 SH Call SOLE 57200 0 0 MEDICINES CO COM 584688105 3747 125300 SH Call DFND 1 125300 0 0 MEDICINES CO COM 584688105 182 6074 SH SOLE 6074 0 0 MICROSOFT CORP COM 594918104 7864 68761 SH DFND 1 68761 0 0 MICROSOFT CORP COM 594918104 3458 30239 SH SOLE 30239 0 0 MOLINA HEALTHCARE INC COM 60855R100 4957 33333 SH DFND 1 33333 0 0 MOLINA HEALTHCARE INC COM 60855R100 2181 14667 SH SOLE 14667 0 0 MOMENTA PHARMACEUTICALS INC COM 60877T100 1737 66036 SH DFND 1 66036 0 0 MOMENTA PHARMACEUTICALS INC COM 60877T100 762 28964 SH SOLE 28964 0 0 MONGODB INC CL A 60937P106 1194 14640 SH SOLE 14640 0 0 MONGODB INC CL A 60937P106 2721 33360 SH DFND 1 33360 0 0 NATERA INC COM 632307104 831 34727 SH DFND 1 34727 0 0 NATERA INC COM 632307104 366 15273 SH SOLE 15273 0 0 NETFLIX INC COM 64110L106 8369 22370 SH DFND 1 22370 0 0 NETFLIX INC COM 64110L106 3528 9430 SH SOLE 9430 0 0 NEW YORK TIMES CO CL A 650111107 2376 102656 SH DFND 1 102656 0 0 NEW YORK TIMES CO CL A 650111107 1043 45044 SH SOLE 45044 0 0 NOVOCURE LTD ORD SHS G6674U108 7174 136906 SH DFND 1 136906 0 0 NOVOCURE LTD ORD SHS G6674U108 3149 60094 SH SOLE 60094 0 0 NUVECTRA CORP COM 67075N108 153 6950 SH DFND 1 6950 0 0 NUVECTRA CORP COM 67075N108 67 3050 SH SOLE 3050 0 0 OKTA INC CL A 679295105 6742 95825 SH DFND 1 95825 0 0 OKTA INC CL A 679295105 2967 42175 SH SOLE 42175 0 0 PIVOTAL SOFTWARE INC COM CL A 72582H107 4491 229364 SH DFND 1 229364 0 0 PIVOTAL SOFTWARE INC COM CL A 72582H107 1970 100636 SH SOLE 100636 0 0 PORTOLA PHARMACEUTICALS INC COM 737010108 463 17400 SH Call DFND 1 17400 0 0 PORTOLA PHARMACEUTICALS INC COM 737010108 202 7600 SH Call SOLE 7600 0 0 RINGCENTRAL INC CL A 76680R206 6403 68808 SH DFND 1 68808 0 0 RINGCENTRAL INC CL A 76680R206 2809 30192 SH SOLE 30192 0 0 ROKU INC COM CL A 77543R102 5787 79236 SH DFND 1 79236 0 0 ROKU INC COM CL A 77543R102 2539 34764 SH SOLE 34764 0 0 SAREPTA THERAPEUTICS INC COM 803607100 8864 54882 SH DFND 1 54882 0 0 SAREPTA THERAPEUTICS INC COM 803607100 3895 24118 SH SOLE 24118 0 0 SHAKE SHACK INC CL A 819047101 1998 31717 SH SOLE 31717 0 0 SHAKE SHACK INC CL A 819047101 4555 72283 SH DFND 1 72283 0 0 SIENTRA INC COM 82621J105 4258 178303 SH DFND 1 178303 0 0 SIENTRA INC COM 82621J105 1870 78297 SH SOLE 78297 0 0 SPDR SERIES TRUST S&P BIOTECH 78464A870 16672 173900 SH Put DFND 1 173900 0 0 SPDR SERIES TRUST S&P BIOTECH 78464A870 7295 76100 SH Put SOLE 76100 0 0 SQUARE INC CL A 852234103 7221 72931 SH DFND 1 72931 0 0 SQUARE INC CL A 852234103 3175 32069 SH SOLE 32069 0 0 STITCH FIX INC COM CL A 860897107 872 19912 SH SOLE 19912 0 0 STITCH FIX INC COM CL A 860897107 1986 45380 SH DFND 1 45380 0 0 TANDEM DIABETES CARE INC COM NEW 875372203 1502 35071 SH SOLE 35071 0 0 TANDEM DIABETES CARE INC COM NEW 875372203 3424 79929 SH DFND 1 79929 0 0 TELADOC HEALTH INC COM 87918A105 7982 92438 SH DFND 1 92438 0 0 TELADOC HEALTH INC COM 87918A105 3503 40562 SH SOLE 40562 0 0 TEMPUR SEALY INTL INC COM 88023U101 2645 49999 SH DFND 1 49999 0 0 TEMPUR SEALY INTL INC COM 88023U101 1164 22001 SH SOLE 22001 0 0 TEMPUR SEALY INTL INC COM 88023U101 545 10300 SH Call DFND 1 10300 0 0 TEMPUR SEALY INTL INC COM 88023U101 249 4700 SH Call SOLE 4700 0 0 UNITEDHEALTH GROUP INC COM 91324P102 5565 20919 SH DFND 1 20919 0 0 UNITEDHEALTH GROUP INC COM 91324P102 2363 8881 SH SOLE 8881 0 0 VEEVA SYS INC CL A COM 922475108 2987 27433 SH DFND 1 27433 0 0 VEEVA SYS INC CL A COM 922475108 1314 12067 SH SOLE 12067 0 0 VERTEX PHARMACEUTICALS INC COM 92532F100 1060 5498 SH SOLE 5498 0 0 VERTEX PHARMACEUTICALS INC COM 92532F100 2410 12502 SH DFND 1 12502 0 0 WAYFAIR INC CL A 94419L101 2515 17028 SH DFND 1 17028 0 0 WAYFAIR INC CL A 94419L101 1103 7472 SH SOLE 7472 0 0 WORLD WRESTLING ENTMT INC CL A 98156Q108 4034 41701 SH DFND 1 41701 0 0 WORLD WRESTLING ENTMT INC CL A 98156Q108 1770 18299 SH SOLE 18299 0 0 WORLD WRESTLING ENTMT INC CL A 98156Q108 10253 106000 SH Call DFND 1 106000 0 0 WORLD WRESTLING ENTMT INC CL A 98156Q108 4740 49000 SH Call SOLE 49000 0 0 ZOGENIX INC COM NEW 98978L204 773 15583 SH SOLE 15583 0 0 ZOGENIX INC COM NEW 98978L204 1757 35417 SH DFND 1 35417 0 0