Generation Bio Co.
GBIODelisted Feb 9, 2026- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001733294
Generation Bio Co. was delisted on Feb 9, 2026; its insiders filed their last Form 4 on Feb 9, 2026; 48 institutions reported holding it in 13F filings for Q4 2025, worth $24.5M in total; no superinvestor held it.
13F holders, Q2 2022
Institutional positions in Generation Bio Co. as of Jun 30, 2022. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 95
- +9 vs. Q1 2022
- Shares held
- 55.4M
- −1.10M (−1.9%) vs. Q1 2022
- Total value
- $363.5M
- −$52.0M (−12.5%) vs. Q1 2022
- New holders
- 19
- 35 more added
- Sold out
- 10
- 25 more reduced
3 institutions that held it in Q1 2022 haven't filed for Q2 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2022: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting GBIO on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 1 | $0 |
| Q1 2026 | 2 | $53.3K |
| Q4 2025 | 48 | $24.5M |
| Q3 2025 | 41 | $24.2M |
| Q2 2025 | 63 | $13.3M |
| Q1 2025 | 81 | $19.3M |
| Q4 2024 | 80 | $57.1M |
| Q3 2024 | 77 | $136.4M |
| Q2 2024 | 79 | $156.5M |
| Q1 2024 | 77 | $223.7M |
| Q4 2023 | 76 | $86.7M |
| Q3 2023 | 77 | $216.8M |
| Q2 2023 | 81 | $315.1M |
| Q1 2023 | 86 | $246.8M |
| Q4 2022 | 98 | $224.5M |
| Q3 2022 | 115 | $306.3M |
| Q2 2022 | 95 | $363.5M |
| Q1 2022 | 89 | $415.8M |
| Q4 2021 | 89 | $390.3M |
| Q3 2021 | 82 | $1.20B |
| Q2 2021 | 98 | $1.25B |
| Q1 2021 | 88 | $1.27B |
Institutions, Q2 2022
Shares, value and share of portfolio for each institution holding Generation Bio Co.; share changes are against Q1 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Huntington National Bank | 1 | $0 | 0.00% | 00.0% | Unchanged |
| First Horizon Advisors, Inc. | 2 | $0 | 0.00% | −14−87.5% | Reduced |
| Group One Trading, L.P. | 1 | $0 | 0.00% | +1 | New |
| Daiwa Securities Group Inc. | 194 | $1.00K | 0.00% | 00.0% | Unchanged |
| Clearstead Advisors, LLC | 100 | $1.00K | 0.00% | +100 | New |
| TCI Wealth Advisors, Inc. | 100 | $1.00K | 0.00% | +100 | New |
| US Bancorp | 276 | $2.00K | 0.00% | 00.0% | Unchanged |
| Signaturefd, LLC | 361 | $2.00K | 0.00% | +275+319.8% | Added |
| Lindbrook Capital, LLC | 283 | $2.00K | 0.00% | +283 | New |
| Macquarie Group Ltd | 498 | $3.00K | 0.00% | 00.0% | Unchanged |
| Compagnie Lombard Odier SCmA | 1,050 | $7.00K | 0.00% | 00.0% | Unchanged |
| Cannell Capital LLC | 1,745 | $11.0K | 0.00% | +1,745 | New |
| Great West Life Assurance Co | 2,496 | $16.0K | 0.00% | +210+9.2% | Added |
| Barclays PLC | 2,534 | $17.0K | 0.00% | −4,751−65.2% | Reduced |
| Wells Fargo & Company | 2,674 | $18.0K | 0.00% | −3,432−56.2% | Reduced |
| Metropolitan Life Insurance Co | 3,046 | $20.0K | 0.00% | 00.0% | Unchanged |
| Manchester Capital Management LLC | 3,000 | $20.0K | 0.00% | +2,000+200.0% | Added |
| Ameritas Investment Partners, Inc. | 3,277 | $21.0K | 0.00% | 00.0% | Unchanged |
| Quantbot Technologies LP | 4,592 | $30.0K | 0.00% | −3,408−42.6% | Reduced |
| Citigroup Inc | 5,085 | $33.0K | 0.00% | −14,836−74.5% | Reduced |
| Amalgamated Bank | 5,777 | $38.0K | 0.00% | −1,263−17.9% | Reduced |
| Royal Bank of Canada | 6,613 | $43.0K | 0.00% | −2,430−26.9% | Reduced |
| Acadian Asset Management LLC | 6,590 | $43.0K | 0.00% | +6,590 | New |
| Ensign Peak Advisors, Inc | 7,790 | $51.0K | 0.00% | 00.0% | Unchanged |
| UBS Group AG | 10,077 | $66.0K | 0.00% | +3,900+63.1% | Added |
| Tower Research Capital LLC (TRC) | 10,735 | $70.0K | 0.00% | +9,609+853.4% | Added |
| Arizona State Retirement System | 11,586 | $76.0K | 0.00% | +11,586 | New |
| Two Sigma Investments, LP | 12,000 | $79.0K | 0.00% | −102,924−89.6% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 13,765 | $91.0K | 0.00% | +13,765 | New |
| Corton Capital Inc. | 15,493 | $102.0K | 0.10% | +15,493 | New |
| Invesco Ltd. | 16,621 | $110.0K | 0.00% | −2,555−13.3% | Reduced |
| Delphia (USA) Inc. | 16,850 | $111.0K | 0.08% | +16,850 | New |
| Legal & General Group Plc | 17,164 | $113.0K | 0.00% | +475+2.8% | Added |
| Voya Investment Management LLC | 17,627 | $116.0K | 0.00% | +1,917+12.2% | Added |
| Victory Capital Management Inc | 17,715 | $116.0K | 0.00% | −21−0.1% | Reduced |
| SG Americas Securities, LLC | 18,032 | $118.0K | 0.00% | +18,032 | New |
| Gsa Capital Partners LLP | 18,457 | $121.0K | 0.02% | +18,457 | New |
| DekaBank Deutsche Girozentrale | 19,400 | $128.0K | 0.00% | 00.0% | Unchanged |
| Two Sigma Advisers, LP | 20,800 | $136.0K | 0.00% | −48,200−69.9% | Reduced |
| Bank of America Corp | 20,785 | $136.0K | 0.00% | −1,160−5.3% | Reduced |
| Cubist Systematic Strategies, LLC | 21,027 | $138.0K | 0.00% | +21,027 | New |
| American International Group, Inc. | 21,775 | $143.0K | 0.00% | +21+0.1% | Added |
| UBS Asset Management Americas Inc | 24,668 | $161.8K | 0.00% | 00.0% | Unchanged |
| Cornercap Investment Counsel Inc | 24,864 | $163.0K | 0.03% | +24,864 | New |
| New York State Common Retirement Fund | 25,917 | $170.0K | 0.00% | +8,649+50.1% | Added |
| MetLife Investment Management | 26,317 | $172.6K | 0.00% | +6,529+33.0% | Added |
| Tudor Investment Corp Et Al | 27,789 | $182.0K | 0.01% | −392−1.4% | Reduced |
| Credit Suisse AG | 30,606 | $201.0K | 0.00% | +4,134+15.6% | Added |
| Marshall Wace, LLP | 34,473 | $226.0K | 0.00% | 00.0% | Unchanged |
| Jacobs Levy Equity Management, Inc | 36,340 | $238.0K | 0.00% | +36,340 | New |
| Man Group plc | – | $247.0K | 0.00% | – | New |
| Nisa Investment Advisors, LLC | 38,200 | $251.0K | 0.00% | +3,500+10.1% | Added |
| Ergoteles LLC | 44,549 | $292.0K | 0.01% | +44,549 | New |
| Jane Street Group, LLC | 47,628 | $312.0K | 0.00% | +22,913+92.7% | Added |
| Alliancebernstein L.P. | 50,106 | $329.0K | 0.00% | +4,000+8.7% | Added |
| Citadel Advisors LLC | 54,639 | $359.0K | 0.00% | +6,151+12.7% | Added |
| California State Teachers Retirement System | 56,408 | $370.0K | 0.00% | +6,054+12.0% | Added |
| PDT Partners, LLC | 58,164 | $382.0K | 0.03% | −37,451−39.2% | Reduced |
| Rhumbline Advisers | 64,777 | $425.0K | 0.00% | +20,621+46.7% | Added |
| Los Angeles Capital Management LLC | 65,332 | $429.0K | 0.00% | −3,060−4.5% | Reduced |
| Millennium Management LLC | 70,560 | $463.0K | 0.00% | +70,560 | New |
| Susquehanna International Group, LLP | 70,935 | $465.0K | 0.00% | +40,378+132.1% | Added |
| Martingale Asset Management L P | 74,310 | $488.0K | 0.01% | −4,026−5.1% | Reduced |
| Qube Research & Technologies Ltd | 76,914 | $505.0K | 0.00% | +76,914 | New |
| Swiss National Bank | 100,700 | $661.0K | 0.00% | +13,300+15.2% | Added |
| Dimensional Fund Advisors LP | 128,141 | $842.0K | 0.00% | +3,405+2.7% | Added |
| State of Wisconsin Investment Board | 144,860 | $950.0K | 0.00% | −7,940−5.2% | Reduced |
| Bank of New York Mellon Corp | 145,941 | $957.0K | 0.00% | +2,536+1.8% | Added |
| Deutsche Bank AG | 148,196 | $973.0K | 0.00% | −4,380−2.9% | Reduced |
| Manufacturers Life Insurance Company, The | 152,574 | $1.01M | 0.00% | +450.0% | Added |
| HRT Financial LP | 155,283 | $1.02M | 0.01% | +96,835+165.7% | Added |
| D. E. Shaw & Co., Inc. | 182,004 | $1.19M | 0.00% | −44,597−19.7% | Reduced |
| Morgan Stanley | 203,817 | $1.34M | 0.00% | −9,532−4.5% | Reduced |
| TD Asset Management Inc | 209,961 | $1.38M | 0.00% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 213,622 | $1.40M | 0.00% | +8,454+4.1% | Added |
| HighVista Strategies LLC | 248,994 | $1.63M | 0.99% | +117,699+89.6% | Added |
| Renaissance Technologies LLC | 287,129 | $1.88M | 0.00% | +214,629+296.0% | Added |
| Nuveen Asset Management, LLC | 312,877 | $2.05M | 0.00% | +139,849+80.8% | Added |
| Charles Schwab Investment Management Inc | 318,566 | $2.09M | 0.00% | +26,854+9.2% | Added |
| Northern Trust Corp | 412,585 | $2.71M | 0.00% | +8,409+2.1% | Added |
| Harvard Management Co Inc | 510,354 | $3.35M | 0.39% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 644,256 | $4.23M | 0.00% | −16,019−2.4% | Reduced |
| Geode Capital Management, LLC | 820,500 | $5.38M | 0.00% | +27,463+3.5% | Added |
| State Street Corp | 914,928 | $6.00M | 0.00% | +55,992+6.5% | Added |
| BVF Inc | 1,556,032 | $10.3M | 0.50% | −1,246,918−44.5% | Reduced |
| Vanguard Group Inc | 2,210,309 | $14.5M | 0.00% | −1,338,868−37.7% | Reduced |
| Yiheng Capital Management, L.P. | 2,597,631 | $17.0M | 1.22% | 00.0% | Unchanged |
| PFM Health Sciences, LP | 2,773,313 | $18.2M | 0.71% | +2,199,035+382.9% | Added |
| Artal Group S.A. | 2,814,191 | $18.5M | 1.03% | 00.0% | Unchanged |
| Farallon Capital Management, L.L.C. | 2,897,300 | $19.0M | 0.11% | −602,700−17.2% | Reduced |
| BlackRock Inc. | 3,501,963 | $23.0M | 0.00% | +333,150+10.5% | Added |
| Bellevue Group AG | 3,627,280 | $23.8M | 0.34% | −54,900−1.5% | Reduced |
| Atlas Venture Life Science Advisors, LLC | 8,278,876 | $54.3M | 9.08% | 00.0% | Unchanged |
| FMR LLC | 8,562,941 | $56.2M | 0.01% | +12,174+0.1% | Added |
| Price T Rowe Associates Inc | 8,931,613 | $58.6M | 0.01% | +167,922+1.9% | Added |
| Casdin Capital, LLC | 0 | $0 | 0.00% | −1,324,275−100.0% | Sold out |
| Occudo Quantitative Strategies LP | 0 | $0 | 0.00% | −38,120−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −37,758−100.0% | Sold out |
| Schonfeld Strategic Advisors LLC | 0 | $0 | 0.00% | −30,400−100.0% | Sold out |
| Thrivent Financial for Lutherans | 0 | $0 | 0.00% | −19,836−100.0% | Sold out |