Atika Capital Management
Latest statistics and disclosures from Atika Capital Management's latest quarterly 13F-HR filing:
- Top 5 stock holdings are HOOD, XBI, VRT, LLY, ISRG, and represent 60.19% of Atika Capital Management's stock portfolio.
- Added to shares of these 10 stocks: XBI (+$117M), IWM (+$22M), MDGL (+$20M), COGT (+$18M), TEVA (+$16M), NFLX (+$15M), GOOG (+$13M), TERN (+$13M), MDB (+$9.4M), HEI (+$8.5M).
- Started 33 new stock positions in XBI, MDB, RKLB, RKT, CLH, IBIT, ANF, RH, EOSE, DNTH.
- Reduced shares in these 10 stocks: CDTX (-$3.5B), HOOD (-$778M), U (-$357M), FND (-$183M), MSFT (-$86M), AMZN (-$73M), SPOT (-$44M), MLM (-$43M), ANET (-$34M), CEG (-$31M).
- Sold out of its positions in ADBE, ANET, AVGO, AI, CALX, CAI, CEG, DHI, DUOL, META.
- Atika Capital Management was a net seller of stock by $-5.1B.
- Atika Capital Management has $1.5B in assets under management (AUM), dropping by 23.40%.
- Central Index Key (CIK): 0001599731
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Portfolio Holdings for Atika Capital Management
Atika Capital Management holds 74 positions in its portfolio as reported in the December 2025 quarterly 13F filing
| Company (Ticker) | Portfolio Weight | Valued At | Change in Shares | Share Count | Share Price | |
|---|---|---|---|---|---|---|
| Robinhood Mkts Com Cl A Put Option (HOOD) | 40.0 | $590M | -56% | 52k | 11310.00 |
|
| Spdr Series Trust State Street Spd Put Option (XBI) | 8.0 | $117M | NEW | 9.6k | 12193.00 |
|
| Vertiv Holdings Com Cl A (VRT) | 7.0 | $103M | +3% | 636k | 162.01 |
|
| Eli Lilly & Co. (LLY) | 3.0 | $44M | 41k | 1074.68 |
|
|
| Intuitive Surgical Com New (ISRG) | 2.2 | $32M | 57k | 566.36 |
|
|
| Teva Pharmaceutical Inds Sponsored Ads (TEVA) | 1.5 | $23M | +221% | 720k | 31.21 |
|
| Ishares Tr Russell 2000 Etf Put Option (IWM) | 1.5 | $22M | NEW | 910.00 | 24616.00 |
|
| Shopify Cl A Sub Vtg Shs (SHOP) | 1.4 | $20M | +57% | 124k | 160.97 |
|
| Madrigal Pharmaceuticals (MDGL) | 1.3 | $20M | NEW | 34k | 582.34 |
|
| Bwx Technologies (BWXT) | 1.3 | $19M | -49% | 109k | 172.84 |
|
| Amazon (AMZN) | 1.3 | $19M | -79% | 80k | 230.82 |
|
| Cogent Biosciences (COGT) | 1.2 | $18M | NEW | 506k | 35.52 |
|
| Netflix (NFLX) | 1.1 | $17M | +900% | 180k | 93.76 |
|
| Talen Energy Corp (TLN) | 1.1 | $16M | -39% | 42k | 374.84 |
|
| Seagate Technology Hldngs Ord Shs (STX) | 1.0 | $14M | -56% | 52k | 275.39 |
|
| Ciena Corp Com New (CIEN) | 1.0 | $14M | -25% | 60k | 233.87 |
|
| Echostar Corp Cl A (SATS) | 0.9 | $14M | +76% | 129k | 108.70 |
|
| Tesla Motors (TSLA) | 0.9 | $14M | -3% | 30k | 449.72 |
|
| Insmed Com Par $.01 (INSM) | 0.9 | $13M | -18% | 77k | 174.04 |
|
| Alphabet Cap Stk Cl C (GOOG) | 0.9 | $13M | NEW | 42k | 313.80 |
|
| Terns Pharmaceuticals (TERN) | 0.9 | $13M | NEW | 321k | 40.40 |
|
| MasTec (MTZ) | 0.8 | $12M | +41% | 56k | 217.37 |
|
| MercadoLibre (MELI) | 0.8 | $12M | -25% | 5.9k | 2014.26 |
|
| Guardant Health (GH) | 0.7 | $11M | -18% | 108k | 102.14 |
|
| Cloudflare Cl A Com (NET) | 0.7 | $11M | -43% | 55k | 197.15 |
|
| Five Below (FIVE) | 0.7 | $11M | +23% | 56k | 188.36 |
|
| Doordash Cl A (DASH) | 0.7 | $10M | -27% | 46k | 226.48 |
|
| Appfolio Com Cl A (APPF) | 0.7 | $10M | 45k | 232.65 |
|
|
| Axsome Therapeutics (AXSM) | 0.7 | $10M | +13% | 56k | 182.64 |
|
| Mongodb Cl A (MDB) | 0.6 | $9.4M | NEW | 22k | 419.69 |
|
| Realreal (REAL) | 0.6 | $8.9M | +51% | 565k | 15.78 |
|
| HEICO Corporation (HEI) | 0.6 | $8.5M | NEW | 26k | 323.59 |
|
| Lemonade (LMND) | 0.5 | $8.1M | +65% | 114k | 71.18 |
|
| Qxo Com New (QXO) | 0.5 | $8.1M | NEW | 420k | 19.29 |
|
| Carlisle Companies (CSL) | 0.5 | $8.1M | NEW | 25k | 319.86 |
|
| Ge Aerospace Com New (GE) | 0.5 | $8.0M | -21% | 26k | 308.03 |
|
| Protagonist Therapeutics (PTGX) | 0.5 | $7.5M | +3% | 86k | 87.34 |
|
| Embraer Sponsored Ads (EMBJ) | 0.5 | $7.5M | NEW | 116k | 64.37 |
|
| Ishares Bitcoin Trust Etf Shs Ben Int Put Option (IBIT) | 0.5 | $7.4M | NEW | 1.5k | 4965.00 |
|
| Abivax Sa Sponsored Ads (ABVX) | 0.5 | $7.4M | -20% | 55k | 134.85 |
|
| Immunome (IMNM) | 0.5 | $7.2M | NEW | 334k | 21.48 |
|
| TTM Technologies (TTMI) | 0.5 | $7.0M | NEW | 102k | 69.00 |
|
| Roku Com Cl A (ROKU) | 0.4 | $6.6M | -54% | 61k | 108.49 |
|
| Ferguson Enterprises Common Stock New (FERG) | 0.4 | $6.5M | 29k | 222.63 |
|
|
| Rh (RH) | 0.4 | $6.3M | NEW | 35k | 179.15 |
|
| Sharkninja Com Shs (SN) | 0.4 | $5.9M | +31% | 53k | 111.90 |
|
| Dianthus Therapeutics (DNTH) | 0.4 | $5.5M | NEW | 135k | 41.21 |
|
| Curtiss-Wright (CW) | 0.4 | $5.4M | 9.9k | 551.27 |
|
|
| Warby Parker Cl A Com (WRBY) | 0.4 | $5.4M | NEW | 249k | 21.79 |
|
| Medline Com Cl A (MDLN) | 0.3 | $4.9M | NEW | 118k | 42.00 |
|
| Floor & Decor Hldgs Cl A Call Option (FND) | 0.3 | $4.9M | -97% | 800.00 | 6089.00 |
|
| Rivian Automotive Com Cl A Call Option (RIVN) | 0.3 | $4.8M | NEW | 2.4k | 1971.00 |
|
| Bbb Foods Cl A Com (TBBB) | 0.3 | $4.8M | -10% | 142k | 33.39 |
|
| Figure Technology Solutio Com Cl A (FIGR) | 0.3 | $4.6M | +106% | 111k | 40.84 |
|
| Bath & Body Works In (BBWI) | 0.3 | $4.5M | NEW | 225k | 20.08 |
|
| Ishares Tr Msci Emg Mkt Etf Call Option (EEM) | 0.3 | $4.5M | NEW | 816.00 | 5471.00 |
|
| Ascendis Pharma A/s Sponsored Adr (ASND) | 0.3 | $4.4M | -6% | 21k | 213.24 |
|
| Rocket Lab Corp (RKLB) | 0.3 | $4.3M | NEW | 62k | 69.76 |
|
| Eos Energy Enterprises Com Cl A Call Option (EOSE) | 0.3 | $4.3M | NEW | 3.7k | 1146.00 |
|
| Xenon Pharmaceuticals (XENE) | 0.3 | $4.1M | +143% | 93k | 44.82 |
|
| Alnylam Pharmaceuticals (ALNY) | 0.3 | $4.1M | -53% | 10k | 397.65 |
|
| Dbv Technologies S A Sponsored Ads (DBVT) | 0.3 | $4.0M | NEW | 207k | 19.17 |
|
| Kiniksa Pharmaceuticals Ord Shs Cl A (KNSA) | 0.3 | $3.9M | NEW | 94k | 41.25 |
|
| Ionis Pharmaceuticals (IONS) | 0.3 | $3.8M | +120% | 48k | 79.11 |
|
| Abercrombie & Fitch Cl A (ANF) | 0.2 | $3.7M | NEW | 29k | 125.87 |
|
| Rapt Therapeutics Com New (RAPT) | 0.2 | $3.2M | NEW | 94k | 33.87 |
|
| Applied Optoelectronics (AAOI) | 0.2 | $3.1M | NEW | 88k | 34.86 |
|
| Rocket Cos Com Cl A (RKT) | 0.2 | $2.5M | NEW | 130k | 19.36 |
|
| Moderna Put Option (MRNA) | 0.2 | $2.2M | NEW | 760.00 | 2949.00 |
|
| Unity Software Call Option (U) | 0.1 | $2.2M | -99% | 500.00 | 4417.00 |
|
| CECO Environmental (CECO) | 0.1 | $1.8M | NEW | 30k | 59.85 |
|
| Cidara Therapeutics Com New Call Option (CDTX) | 0.1 | $1.1M | -99% | 49.00 | 22089.00 |
|
| Clean Harbors (CLH) | 0.0 | $703k | NEW | 3.0k | 234.48 |
|
| Reddit Cl A (RDDT) | 0.0 | $460k | NEW | 2.0k | 229.87 |
|
Past Filings by Atika Capital Management
SEC 13F filings are viewable for Atika Capital Management going back to 2013
- Atika Capital Management 2025 Q4 filed Feb. 13, 2026
- Atika Capital Management 2025 Q3 filed Nov. 13, 2025
- Atika Capital Management 2025 Q2 filed Aug. 13, 2025
- Atika Capital Management 2025 Q1 filed May 14, 2025
- Atika Capital Management 2024 Q4 filed Feb. 13, 2025
- Atika Capital Management 2024 Q3 filed Nov. 13, 2024
- Atika Capital Management 2024 Q2 filed Aug. 13, 2024
- Atika Capital Management 2024 Q1 filed May 14, 2024
- Atika Capital Management 2023 Q3 filed Nov. 13, 2023
- Atika Capital Management 2023 Q2 filed Aug. 11, 2023
- Atika Capital Management 2023 Q1 filed May 12, 2023
- Atika Capital Management 2022 Q4 filed Feb. 13, 2023
- Atika Capital Management 2022 Q3 filed Nov. 14, 2022
- Atika Capital Management 2022 Q2 filed Aug. 12, 2022
- Atika Capital Management 2022 Q1 filed May 13, 2022
- Atika Capital Management 2021 Q4 filed Feb. 11, 2022