Atika Capital Management LLC Q2 2016 Filing
Filed August 15, 2016
Portfolio Value
$233.4B
Holdings
58
Report Date
Q2 2016
Filing Type
13F-HR
All Holdings (58 positions)
| # | Stock | Shares | Value | % Portfolio | Type |
|---|---|---|---|---|---|
| 1 | SPYSPDR S&P 500 ETF TR | 180,000 | $37.7B | 16.15% | Put |
| 2 | —RAPTOR PHARMACEUTICAL CORP | 1,804,000 | $9.7B | 4.15% | Call |
| 3 | SIXEURSIX FLAGS ENTMT CORP NEW | 166,000 | $9.6B | 4.12% | |
| 4 | GRA1EURGRACE W R & CO DEL NEW | 131,000 | $9.6B | 4.11% | Call |
| 5 | MLMMARTIN MARIETTA MATLS INC | 49,000 | $9.4B | 4.03% | |
| 6 | DOOREURMASONITE INTL CORP NEW | 115,650 | $7.6B | 3.28% | |
| 7 | —HORIZON PHARMA PLC | 433,000 | $7.1B | 3.06% | |
| 8 | —ADEPTUS HEALTH INC | 125,000 | $6.5B | 2.77% | |
| 9 | AMZNAMAZON COM INC | 9,000 | $6.4B | 2.76% | |
| 10 | NVROEURNEVRO CORP | 84,500 | $6.2B | 2.67% | |
| 11 | —ALLERGAN PLC | 25,000 | $5.8B | 2.47% | |
| 12 | ULTAULTA SALON COSMETCS & FRAG I | 23,000 | $5.6B | 2.40% | |
| 13 | ISRGINTUITIVE SURGICAL INC | 8,400 | $5.6B | 2.38% | |
| 14 | —GIGAMON INC | 144,000 | $5.4B | 2.31% | |
| 15 | FIVEFIVE BELOW INC | 105,000 | $4.9B | 2.09% | |
| 16 | METAFACEBOOK INC | 42,500 | $4.9B | 2.08% | |
| 17 | —AETNA INC NEW | 38,000 | $4.6B | 1.99% | |
| 18 | VMCVULCAN MATLS CO | 37,000 | $4.5B | 1.91% | |
| 19 | STZCONSTELLATION BRANDS INC | 24,000 | $4.0B | 1.70% | |
| 20 | NFLXNETFLIX INC | 43,000 | $3.9B | 1.69% | |
| 21 | BATRKUSDLIBERTY MEDIA CORP DELAWARE | 254,000 | $3.7B | 1.60% | |
| 22 | SHAKSHAKE SHACK INC | 93,000 | $3.4B | 1.45% | |
| 23 | ORLYO REILLY AUTOMOTIVE INC NEW | 12,200 | $3.3B | 1.42% | |
| 24 | GKOSGLAUKOS CORP | 113,000 | $3.3B | 1.41% | |
| 25 | UTHUNITED THERAPEUTICS CORP DEL | 29,500 | $3.1B | 1.34% | Call |
| 26 | —BMC STK HLDGS INC | 173,000 | $3.1B | 1.32% | |
| 27 | —ALDER BIOPHARMACEUTICALS INC | 121,500 | $3.0B | 1.30% | |
| 28 | WMSADVANCED DRAIN SYS INC DEL | 95,000 | $2.6B | 1.11% | |
| 29 | ALKSALKERMES PLC | 60,000 | $2.6B | 1.11% | |
| 30 | —MEDIDATA SOLUTIONS INC | 55,000 | $2.6B | 1.10% | |
| 31 | EXPEAGLE MATERIALS INC | 32,500 | $2.5B | 1.07% | |
| 32 | TWXCHFTIME WARNER INC | 33,000 | $2.4B | 1.04% | |
| 33 | MSFTMICROSOFT CORP | 46,000 | $2.4B | 1.01% | |
| 34 | CTRPUSDCTRIP COM INTL LTD | 57,000 | $2.3B | 1.01% | |
| 35 | —SHIRE PLC | 12,500 | $2.3B | 0.99% | |
| 36 | MTNVAIL RESORTS INC | 16,000 | $2.2B | 0.95% | |
| 37 | —HALYARD HEALTH INC | 65,000 | $2.1B | 0.91% | |
| 38 | EPAMEPAM SYS INC | 32,000 | $2.1B | 0.88% | |
| 39 | —GRUBHUB INC | 66,000 | $2.1B | 0.88% | |
| 40 | GOOGALPHABET INC | 2,900 | $2.0B | 0.86% | |
| 41 | LLYLILLY ELI & CO | 24,000 | $1.9B | 0.81% | Call |
| 42 | DPZDOMINOS PIZZA INC | 14,000 | $1.8B | 0.79% | |
| 43 | —2U INC | 60,000 | $1.8B | 0.76% | |
| 44 | —GW PHARMACEUTICALS PLC | 17,000 | $1.6B | 0.67% | |
| 45 | —NXSTAGE MEDICAL INC | 71,000 | $1.5B | 0.66% | |
| 46 | BSXBOSTON SCIENTIFIC CORP | 64,000 | $1.5B | 0.64% | |
| 47 | —OPHTHOTECH CORP | 29,000 | $1.5B | 0.63% | |
| 48 | HUMHUMANA INC | 7,000 | $1.3B | 0.54% | |
| 49 | GLPGGALAPAGOS NV | 21,000 | $1.2B | 0.50% | |
| 50 | ADSKAUTODESK INC | 21,500 | $1.2B | 0.50% | |
| 51 | —STRAIGHT PATH COMMUNICATNS I | 36,000 | $997.0M | 0.43% | |
| 52 | WBAWALGREENS BOOTS ALLIANCE INC | 11,900 | $991.0M | 0.42% | Call |
| 53 | SKAASKECHERS U S A INC | 32,000 | $951.0M | 0.41% | |
| 54 | —TESARO INC | 10,500 | $883.0M | 0.38% | |
| 55 | XLRNACCELERON PHARMA INC | 24,000 | $816.0M | 0.35% | |
| 56 | ALNYALNYLAM PHARMACEUTICALS INC | 14,000 | $777.0M | 0.33% | |
| 57 | ALXNALEXION PHARMACEUTICALS INC | 4,000 | $467.0M | 0.20% | Put |
| 58 | ACADACADIA PHARMACEUTICALS INC | 10,300 | $334.0M | 0.14% | Call |