Atika Capital Management LLC
CIK: 0001599731Latest portfolio: $949.0M · Q4 2025
Holdings
74
Total Value
$949.0M
New Positions
33
Closed Positions
40
Top Holdings
View All 74 Holdings →| # | Stock | Shares | Value | % Portfolio | Change | Type |
|---|---|---|---|---|---|---|
| 1 | XBISPDR SERIES TRUST | 9,625 | $116.0M | 12.22% | NEW | Put |
| 2 | VRTVERTIV HOLDINGS CO | 636,100 | $101.0M | 10.64% | +23K | |
| 3 | SATSECHOSTAR CORP | 128,789 | $54.0M | 5.69% | +56K | Call |
| 4 | LLYELI LILLY & CO | 41,100 | $42.0M | 4.43% | — | |
| 5 | ISRGINTUITIVE SURGICAL INC | 57,216 | $31.0M | 3.27% | -20 | |
| 6 | TEVATEVA PHARMACEUTICAL INDS | 720,000 | $29.0M | 3.06% | NEW | Call |
| 7 | IWMISHARES TR | 910 | $21.0M | 2.21% | NEW | Put |
| 8 | MDGLMADRIGAL PHARMACEUTICALS | 34,000 | $19.0M | 2.00% | NEW | |
| 9 | SHOPSHOPIFY INC | 124,000 | $19.0M | 2.00% | +46K | |
| 10 | BWXTBWX TECHNOLOGIES INC | 108,900 | $17.0M | 1.79% | -108,500 | |
| 11 | AMZNAMAZON COM INC | 80,000 | $17.0M | 1.79% | -317,049 | |
| 12 | COGTCOGENT BIOSCIENCES INC | 506,000 | $16.0M | 1.69% | NEW | |
| 13 | NFLXNETFLIX INC | 180,000 | $15.0M | 1.58% | +162K | |
| 14 | TLNTALEN ENERGY CORP | 42,100 | $14.0M | 1.48% | -27,200 | |
| 15 | STXSEAGATE TECHNOLOGY HLDNGS | 51,907 | $13.0M | 1.37% | NEW | |
| 16 | CIENCIENA CORP | 60,000 | $12.0M | 1.26% | -20,000 | |
| 17 | IM8NINSMED INC | 77,200 | $12.0M | 1.26% | -17,800 | |
| 18 | GOOGALPHABET INC | 42,200 | $12.0M | 1.26% | NEW | |
| 19 | TERNTERNS PHARMACEUTICALS INC | 321,165 | $12.0M | 1.26% | NEW | |
| 20 | TSLATESLA INC | 30,000 | $12.0M | 1.26% | -1,000 | |
| 21 | HOODROBINHOOD MKTS INC | 52,200 | $11.0M | 1.16% | NEW | Put |
| 22 | GHGUARDANT HEALTH INC | 108,000 | $10.0M | 1.05% | -25,000 | |
| 23 | MLB1MERCADOLIBRE INC | 5,947 | $10.0M | 1.05% | -1,983 | |
| 24 | MTZMASTEC INC | 55,998 | $10.0M | 1.05% | +16K | |
| 25 | APPFAPPFOLIO INC | 44,500 | $9.0M | 0.95% | — |
Quarterly Changes
New Positions
Increased Positions
Sector Breakdown
Healthcare0.0% ($4.200031000290002e+81T)
Industrials0.0% ($1.0100017000100008e+43T)
Technology0.0% ($5.400019000130001e+34T)
Consumer Cyclical0.0% ($1.70001200080008e+32T)
Financial Services0.0% ($1.1600021000110008e+26T)
Communication Services0.0% ($1500012000.8T)
Unknown0.0% ($1200010000.3T)
Utilities0.0% ($14.0M)
Consumer Defensive0.0% ($3.0M)
Filing History
| Quarter | Filing Date | Portfolio Value | Holdings |
|---|---|---|---|
| Q4 2025 | Feb 13, 2026 | $949.0M | 231 |
| Q3 2025 | Nov 13, 2025 | $1.2T | 258 |
| Q2 2025 | Aug 13, 2025 | $1000.0B | 0 |
| Q1 2025 | May 14, 2025 | $711.1B | 186 |
| Q4 2024 | Feb 13, 2025 | $941.4B | 252 |
| Q3 2024 | Nov 13, 2024 | $975.4T | 252 |
| Q2 2024 | Aug 13, 2024 | $1020.4T | 273 |
| Q1 2024 | May 14, 2024 | $1015.1T | 264 |
| Q4 2023 | Feb 13, 2024 | $746.8T | 228 |
| Q3 2023 | Nov 13, 2023 | $761.9T | 225 |
| Q2 2023 | Aug 11, 2023 | $999.0T | 248 |
| Q1 2023 | May 12, 2023 | $677.1T | 231 |
| Q4 2022 | Feb 13, 2023 | $695.5T | 195 |
| Q3 2022 | Nov 14, 2022 | $1.2T | 272 |
| Q2 2022 | Aug 12, 2022 | $889.6B | 228 |
| Q1 2022 | May 13, 2022 | $1.2T | 210 |
| Q4 2021 | Feb 11, 2022 | $1.4T | 264 |
| Q3 2021 | Nov 12, 2021 | $1.7T | 342 |
| Q2 2021 | Aug 12, 2021 | $1.3T | 285 |
| Q1 2021 | May 14, 2021 | $1.2T | 270 |
| Q4 2020 | Feb 16, 2021 | $1.3T | 327 |
| Q3 2020 | Nov 13, 2020 | $1.2T | 318 |
| Q2 2020 | Aug 13, 2020 | $773.8B | 282 |
| Q1 2020 | May 14, 2020 | $521.8B | 252 |
| Q4 2019 | Feb 14, 2020 | $517.9B | 228 |
| Q3 2019 | Nov 14, 2019 | $475.0B | 146 |
| Q2 2019 | Aug 12, 2019 | $509.1B | 154 |
| Q1 2019 | May 13, 2019 | $492.2B | 143 |
| Q4 2018 | Feb 14, 2019 | $339.7B | 140 |
| Q3 2018 | Nov 14, 2018 | $557.6B | 172 |
| Q2 2018 | Aug 14, 2018 | $520.1B | 176 |
| Q1 2018 | May 15, 2018 | $291.9B | 140 |
| Q4 2017 | Feb 14, 2018 | $258.7B | 130 |
| Q3 2017 | Nov 14, 2017 | $348.1B | 158 |
| Q2 2017 | Aug 14, 2017 | $285.4B | 152 |
| Q1 2017 | May 15, 2017 | $204.3B | 124 |
| Q4 2016 | Feb 14, 2017 | $168.0B | 108 |
| Q3 2016 | Nov 14, 2016 | $244.9B | 132 |
| Q2 2016 | Aug 15, 2016 | $233.4B | 120 |
| Q1 2016 | May 16, 2016 | $165.4B | 88 |
Fund Information
Atika Capital Management LLC is an institutional investment manager that files 13F reports with the SEC. As of the Q4 2025 filing, the fund reported a portfolio valued at $949.0M across 74 holdings. The largest position is SPDR SERIES TRUST (XBI), representing 12.2% of the portfolio. Compared to the previous quarter, the fund opened 36 new positions and closed 43 positions. 13F filings are required quarterly disclosures that provide transparency into the holdings of institutional investment managers with at least $100 million in qualifying assets.