Who owns Generation Bio Co?
- Ticker: GBIO
- CUSIP Number: 37148k209
Tip: Access positions for across all investors
Analyze quarterly positions in Generation Bio with up to 7 years of data, all consolidated into one spreadsheet
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Top investors of Generation Bio stock
Who bought or sold Generation Bio Co this quarter?
| Fund or Company Name | Shares Held | Valued At | Change in Shares | As Of | Actions |
|---|---|---|---|---|---|
| Atlas Venture Life Science Advisors | 828k | $4.7M | 100% | Dec 2025 |
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| Opaleye Management | 310k | $1.8M | 100% | Dec 2025 |
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| Renaissance Technologies | 288k | $1.6M | -16% | Dec 2025 |
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| Vanguard Group | 230k | $1.3M | 0% | Dec 2025 |
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| Siren | 201k | $1.1M | -32% | Dec 2025 |
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| Baker Bros. Advisors | 195k | $1.2M | 100% | Sep 2025 |
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| UBS Group | 165k | $936k | 11% | Dec 2025 |
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| Marshall Wace | 140k | $797k | -36% | Dec 2025 |
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| Acadian Asset Management | 121k | $686k | -5% | Dec 2025 |
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| Yiheng Capital | 106k | $599k | 0% | Dec 2025 |
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| Rangeley Capital | 98k | $558k | 100% | Dec 2025 |
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| Millennium Management | 97k | $596k | 100% | Sep 2025 |
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| Goldman Sachs Group | 92k | $520k | -23% | Dec 2025 |
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| BlackRock | 60k | $341k | 0% | Dec 2025 |
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| Geode Capital Management | 52k | $294k | 4% | Dec 2025 |
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| Citadel Advisors | 47k | $289k | 100% | Sep 2025 |
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| DRW Holdings | 44k | $249k | 100% | Dec 2025 |
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| Deltec Asset Management | 33k | $186k | 100% | Dec 2025 |
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| TD Asset Management | 27k | $152k | 0% | Dec 2025 |
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| Torno Capital | 25k | $142k | 100% | Dec 2025 |
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| Lynx1 Capital Management | 25k | $142k | 100% | Dec 2025 |
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| ADAR1 Capital Management | 22k | $126k | 0% | Dec 2025 |
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| State Street Corporation | 20k | $114k | 0% | Dec 2025 |
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| None | 20k | $113k | 100% | Dec 2025 |
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| CSS | 18k | $99k | 100% | Dec 2025 |
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| Northern Trust | 17k | $97k | 28% | Dec 2025 |
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| Manufacturers Life Insurance Company | 14k | $81k | 0% | Dec 2025 |
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| XTX Topco | 13k | $75k | 16% | Dec 2025 |
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| FMR | 13k | $80k | 100% | Sep 2025 |
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| Two Sigma Investments | 12k | $76k | 100% | Sep 2025 |
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| Seven Fleet Capital Management | 5.4k | $31k | 100% | Dec 2025 |
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| Royal Bank of Canada | 1.1k | $8.5k | 100% | Sep 2025 |
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| Jpmorgan Chase & Co | 687.00 | $4.2k | 100% | Sep 2025 |
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| Rockefeller Capital Management | 500.00 | $2.8k | 43% | Dec 2025 |
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| Sterling Capital Management | 194.00 | $1.1k | 0% | Dec 2025 |
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| Bnp Paribas Arbitrage, Snc | 147.00 | $835.004100 | -5% | Dec 2025 |
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| SBI Securities | 53.00 | $300.997600 | 0% | Dec 2025 |
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| Wells Fargo & Company | 50.00 | $284.000000 | 0% | Dec 2025 |
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| Optiver Holding B.V. | 2.00 | $11.000000 | -60% | Dec 2025 |
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| Smartleaf Asset Management | 1.00 | $6.000000 | 100% | Dec 2025 |
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| CWM | 1.00 | $0 | -75% | Dec 2025 |
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Who sold out of Generation Bio?
| Fund or Company Name | Date Sold | Shares Held | Valued At |
|---|---|---|---|
| Cantor Fitzgerald, L. P. | Sep 2025 | 99k | $606k |
| Shay Capital | Sep 2025 | 10k | $64k |