Atika Capital Management LLC Portfolio Holdings
Q3 2025•76 long positions•$1.2B portfolio value
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Holding84 | Sector | Position↕ | Traded↕ | Ownership↕ | Shares Δ↕ | Shares Δ % | Market Cap↕ | Owned Since↕ |
|---|---|---|---|---|---|---|---|---|
Electrical Equipment & Parts Industrials | $92.5M 7.88% | — | 0.161% 613.1K shares | — | — | $57.6B Large Cap | Q2 2023 Held for 2y 5m | |
Specialty Retail Consumer Cyclical | $87.2M 7.43% | -$263.5K Sold | 0.004% 397.0K shares | 398.2K → 397.0K −$263.5K | -0.3% | $2.34T Mega Cap | Q4 2015 Held for 9y 11m | |
Software - Infrastructure Technology | $85.5M 7.28% | +$3.6M Bought | 0.002% 165.0K shares | 158.0K → 165.0K +$3.6M | +4.43% | $3.85T Mega Cap | Q4 2015 Held for 9y 11m | |
Internet Content & Information Communication Services | $43.9M 3.74% | +$244.3K Bought | 0.031% 62.9K shares | 62.5K → 62.9K +$244.3K | +0.56% | $143.63B Large Cap | Q2 2024 Held for 1y 5m | |
Construction Materials Basic Materials | $43.2M 3.68% | -$2.6M Sold | 0.114% 68.5K shares | 72.5K → 68.5K −$2.6M | -5.58% | $38.0B Large Cap | Q1 2014 Held for 11y 8m | |
Aerospace & Defense Industrials | $40.1M 3.41% | +$1.3M Bought | 0.238% 217.4K shares | 210.4K → 217.4K +$1.3M | +3.33% | $16.9B Large Cap | Q2 2022 Held for 3y 5m | |
Computer Hardware Technology | $33.7M 2.87% | -$4.4M Sold | 0.018% 231.2K shares | 261.6K → 231.2K −$4.4M | -11.62% | $183.14B Large Cap | Q3 2023 Held for 2y 2m | |
Drug Manufacturers - General Healthcare | $31.4M 2.67% | — | 0.005% 41.1K shares | — | — | $684.00B Mega Cap | Q2 2023 Held for 2y 5m | |
Renewable Utilities Utilities | $31.2M 2.66% | — | 0.03% 94.8K shares | — | — | $102.80B Large Cap | Q2 2024 Held for 1y 5m | |
Unknown Unknown | $29.5M 2.51% | +$4.0M Bought | 0.152% 69.3K shares | 59.8K → 69.3K +$4.0M | +15.89% | $19.4B Large Cap | Q3 2024 Held for 1y 2m | |
Computer Hardware Technology | $27.9M 2.37% | +$27.9M New | 0.055% 118.1K shares | 0 → 118.1K +$27.9M | New | $50.3B Large Cap | Q3 2025 Held for 2 months | |
Renewable Utilities Utilities | $26.1M 2.22% | -$68.3K Sold | 0.016% 42.4K shares | 42.6K → 42.4K −$68.3K | -0.26% | $167.39B Large Cap | Q3 2024 Held for 1y 2m | |
Internet Content & Information Communication Services | $26.1M 2.22% | -$1.8M Sold | 0.001% 35.5K shares | 38.0K → 35.5K −$1.8M | -6.58% | $1.84T Mega Cap | Q1 2023 Held for 2y 8m | |
Medical - Instruments & Supplies Healthcare | $25.6M 2.18% | -$1.1M Sold | 0.016% 57.2K shares | 59.6K → 57.2K −$1.1M | -3.97% | $160.32B Large Cap | Q3 2022 Held for 3y 2m | |
Independent Power Producers Utilities | $24.1M 2.05% | -$195.9K Sold | 0.036% 123.0K shares | 124.0K → 123.0K −$195.9K | -0.81% | $66.4B Large Cap | Q1 2024 Held for 1y 8m | |
Software - Infrastructure Technology | $21.7M 1.85% | +$2.9M Bought | 0.089% 44.9K shares | 38.9K → 44.9K +$2.9M | +15.44% | $24.4B Large Cap | Q1 2024 Held for 1y 8m | |
Entertainment Communication Services | $21.6M 1.84% | +$7.2M Bought | 0.004% 18.0K shares | 12.0K → 18.0K +$7.2M | +50.0% | $509.45B Mega Cap | Q3 2024 Held for 1y 2m | |
Software - Infrastructure Technology | $21.0M 1.79% | +$6.3M Bought | 0.028% 98.0K shares | 68.8K → 98.0K +$6.3M | +42.45% | $74.8B Large Cap | Q2 2020 Held for 5y 5m | |
Unknown Unknown | $20.2M 1.72% | +$12.4M Bought | 0.072% 179.9K shares | 69.5K → 179.9K +$12.4M | +158.82% | $28.0B Large Cap | Q2 2025 Held for 5 months | |
Electronic Gaming & Multimedia Technology | $19.7M 1.68% | +$4.6M Bought | 0.021% 142.5K shares | 109.0K → 142.5K +$4.6M | +30.73% | $96.0B Large Cap | Q2 2025 Held for 5 months | |
Unknown Unknown | $18.8M 1.6% | -$3.9M Sold | — 176.0K shares | 212.5K → 176.0K −$3.9M | -17.18% | — — | Q3 2024 Held for 1y 2m | |
Specialty Retail Consumer Cyclical | $18.5M 1.58% | -$4.8M Sold | 0.016% 7.9K shares | 10.0K → 7.9K −$4.8M | -20.7% | $118.48B Large Cap | Q3 2022 Held for 3y 2m | |
Software - Infrastructure Technology | $17.3M 1.48% | -$13.9M Sold | 0.014% 121.0K shares | 218.1K → 121.0K −$13.9M | -44.52% | $127.24B Large Cap | Q1 2025 Held for 8 months | |
Medical - Devices Healthcare | $17.3M 1.48% | -$8.7M Sold | 0.37% 212.4K shares | 319.5K → 212.4K −$8.7M | -33.52% | $4.7B Mid Cap | Q2 2023 Held for 2y 5m | |
Internet Content & Information Communication Services | $17.2M 1.46% | -$870.1K Sold | 0.015% 63.2K shares | 66.4K → 63.2K −$870.1K | -4.82% | $116.19B Large Cap | Q1 2024 Held for 1y 8m | |
Biotechnology Healthcare | $15.1M 1.28% | +$15.1M New | 0.62% 157.3K shares | 0 → 157.3K +$15.1M | New | $2.4B Mid Cap | Q3 2025 Held for 2 months | |
Medical - Devices Healthcare | $13.9M 1.19% | +$1.9M Bought | 0.634% 187.6K shares | 161.9K → 187.6K +$1.9M | +15.87% | $2.2B Mid Cap | Q2 2018 Held for 7y 5m | |
Semiconductors Technology | $13.8M 1.17% | +$2.8M Bought | 0.0% 73.9K shares | 58.8K → 73.9K +$2.8M | +25.68% | $4.54T Mega Cap | Q1 2020 Held for 5y 8m | |
Auto - Manufacturers Consumer Cyclical | $13.8M 1.17% | +$13.8M Bought | 0.001% 31.0K shares | — | — | $1.48T Mega Cap | Q4 2024 Held for 11 months | |
Biotechnology Healthcare | $13.7M 1.17% | +$13.7M Bought | 0.045% 95.0K shares | — | — | $30.4B Large Cap | Q2 2024 Held for 1y 5m | |
Software - Infrastructure Technology | $13.7M 1.16% | +$5.8M Bought | 0.009% 38.7K shares | 22.3K → 38.7K +$5.8M | +73.55% | $147.66B Large Cap | Q2 2023 Held for 2y 5m | |
Entertainment Communication Services | $13.3M 1.13% | +$8.9M Bought | 0.09% 133.0K shares | 44.6K → 133.0K +$8.9M | +198.21% | $14.8B Large Cap | Q1 2025 Held for 8 months | |
Software - Application Technology | $12.3M 1.04% | — | 0.124% 44.5K shares | — | — | $9.9B Mid Cap | Q2 2023 Held for 2y 5m | |
Software - Application Technology | $11.7M 0.994% | +$1.4M Bought | 0.006% 78.5K shares | 69.4K → 78.5K +$1.4M | +13.11% | $193.14B Large Cap | Q4 2024 Held for 11 months | |
Communication Equipment Technology | $11.7M 0.993% | +$11.7M New | 0.057% 80.0K shares | 0 → 80.0K +$11.7M | New | $20.6B Large Cap | Q3 2025 Held for 2 months | |
Biotechnology Healthcare | $10.1M 0.863% | -$2.5M Sold | 0.017% 22.2K shares | 27.7K → 22.2K −$2.5M | -19.83% | $59.8B Large Cap | Q2 2025 Held for 5 months | |
Aerospace & Defense Industrials | $9.9M 0.846% | +$469.0K Bought | 0.003% 33.0K shares | 31.4K → 33.0K +$469.0K | +4.96% | $319.00B Mega Cap | Q1 2024 Held for 1y 8m | |
Specialty Retail Consumer Cyclical | $8.8M 0.748% | -$3.3M Sold | 0.38% 301.0K shares | 414.2K → 301.0K −$3.3M | -27.33% | $2.3B Mid Cap | Q2 2025 Held for 5 months | |
Unknown Unknown | $8.5M 0.721% | +$8.5M Bought | — 8.7K shares | — | — | — — | Q3 2025 Held for 2 months | |
Engineering & Construction Industrials | $8.4M 0.716% | -$2.1M Sold | 0.05% 39.5K shares | 49.2K → 39.5K −$2.1M | -19.72% | $16.8B Large Cap | Q4 2024 Held for 11 months | |
Medical - Diagnostics & Research Healthcare | $8.3M 0.708% | +$2.7M Bought | 0.107% 133.0K shares | 89.2K → 133.0K +$2.7M | +49.1% | $7.8B Mid Cap | Q1 2025 Held for 8 months | |
Medical - Diagnostics & Research Healthcare | $7.5M 0.638% | — | 0.034% 46.5K shares | — | — | $22.1B Large Cap | Q2 2024 Held for 1y 5m | |
Residential Construction Consumer Cyclical | $7.5M 0.635% | +$7.5M New | 0.015% 44.0K shares | 0 → 44.0K +$7.5M | New | $50.5B Large Cap | Q3 2025 Held for 2 months | |
Software - Application Technology | $7.1M 0.609% | +$354.0K Bought | 0.048% 22.2K shares | 21.1K → 22.2K +$354.0K | +5.21% | $14.7B Large Cap | Q1 2023 Held for 2y 8m | |
Specialty Retail Consumer Cyclical | $7.0M 0.6% | +$7.0M Bought | 0.083% 45.5K shares | — | — | $8.5B Mid Cap | Q3 2025 Held for 2 months | |
Biotechnology Healthcare | $6.6M 0.562% | +$6.6M New | 0.224% 174.0K shares | 0 → 174.0K +$6.6M | New | $2.9B Mid Cap | Q3 2025 Held for 2 months | |
Industrial - Distribution Industrials | $6.6M 0.561% | — | 0.015% 29.3K shares | — | — | $45.1B Large Cap | Q3 2022 Held for 3y 2m | |
Biotechnology Healthcare | $6.0M 0.507% | +$349.7K Bought | 0.098% 49.0K shares | 46.1K → 49.0K +$349.7K | +6.24% | $6.1B Mid Cap | Q2 2022 Held for 3y 5m | |
Unknown Unknown | $5.9M 0.499% | +$5.9M Bought | — 69.0K shares | — | — | — — | Q3 2025 Held for 2 months | |
Biotechnology Healthcare | $5.5M 0.47% | +$5.5M New | 0.133% 83.0K shares | 0 → 83.0K +$5.5M | New | $4.1B Mid Cap | Q3 2025 Held for 2 months |
