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, Q4 2022
Institutional positions in Generation Bio Co. as of Dec 31, 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
- 98
- −16 vs. Q3 2022
- Shares held
- 57.1M
- −563.2K (−1.0%) vs. Q3 2022
- Total value
- $224.5M
- −$81.8M (−26.7%) vs. Q3 2022
- New holders
- 10
- 41 more added
- Sold out
- 26
- 28 more reduced
1 institution that held it in Q3 2022 haven't filed for Q4 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2022
Shares, value and share of portfolio for each institution holding Generation Bio Co.; share changes are against Q3 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Huntington National Bank | 1 | $4 | 0.00% | 00.0% | Unchanged |
| Group One Trading, L.P. | 1 | $4 | 0.00% | 00.0% | Unchanged |
| First Horizon Advisors, Inc. | 2 | $8 | 0.00% | 00.0% | Unchanged |
| US Bancorp | 8 | $31 | 0.00% | −2,644−99.7% | Reduced |
| TCI Wealth Advisors, Inc. | 100 | $393 | 0.00% | 00.0% | Unchanged |
| State of Wyoming | 101 | $397 | 0.00% | +79+359.1% | Added |
| Northwestern Mutual Wealth Management Co | 109 | $428 | 0.00% | +109 | New |
| Daiwa Securities Group Inc. | 194 | $1.00K | 0.00% | 00.0% | Unchanged |
| China Universal Asset Management Co., Ltd. | 604 | $2.37K | 0.00% | +52+9.4% | Added |
| Great West Life Assurance Co | 1,866 | $7.00K | 0.00% | −841−31.1% | Reduced |
| Russell Investments Group, Ltd. | 2,067 | $8.12K | 0.00% | −21,129−91.1% | Reduced |
| Wells Fargo & Company | 2,100 | $8.25K | 0.00% | −118−5.3% | Reduced |
| Citigroup Inc | 2,195 | $8.63K | 0.00% | −307−12.3% | Reduced |
| Lazard Asset Management LLC | 2,373 | $9.00K | 0.00% | +2,373 | New |
| Manchester Capital Management LLC | 3,000 | $11.8K | 0.00% | 00.0% | Unchanged |
| Metropolitan Life Insurance Co | 3,067 | $12.1K | 0.00% | +2,130+227.3% | Added |
| Tower Research Capital LLC (TRC) | 3,298 | $13.0K | 0.00% | −2,880−46.6% | Reduced |
| Quantbot Technologies LP | 3,592 | $14.1K | 0.00% | −500−12.2% | Reduced |
| Ameritas Investment Partners, Inc. | 3,277 | $15.6K | 0.00% | 00.0% | Unchanged |
| Aquatic Capital Management LLC | 5,300 | $21.0K | 0.00% | +5,300 | New |
| Amalgamated Bank | 5,964 | $23.0K | 0.00% | 00.0% | Unchanged |
| Cannell Capital LLC | 7,768 | $30.5K | 0.01% | 00.0% | Unchanged |
| Connor, Clark & Lunn Investment Management Ltd. | 10,003 | $39.3K | 0.00% | +10,003 | New |
| Denali Advisors LLC | 10,600 | $41.7K | 0.02% | +3,200+43.2% | Added |
| Public Employees Retirement System of Ohio | 11,003 | $43.0K | 0.00% | −2,497−18.5% | Reduced |
| ProShare Advisors LLC | 11,103 | $43.6K | 0.00% | +852+8.3% | Added |
| Citadel Advisors LLC | 11,294 | $44.4K | 0.00% | −10,188−47.4% | Reduced |
| Arizona State Retirement System | 12,488 | $49.1K | 0.00% | +853+7.3% | Added |
| Royal Bank of Canada | 12,875 | $50.0K | 0.00% | +5,939+85.6% | Added |
| Barclays PLC | 12,913 | $50.7K | 0.00% | +10,873+533.0% | Added |
| Teacher Retirement System of Texas | 13,267 | $52.0K | 0.00% | −811−5.8% | Reduced |
| Ameriprise Financial Inc | 13,620 | $53.0K | 0.00% | −70−0.5% | Reduced |
| PDT Partners, LLC | 14,560 | $57.2K | 0.01% | −26,047−64.1% | Reduced |
| Ensign Peak Advisors, Inc | 15,240 | $59.9K | 0.00% | +7,450+95.6% | Added |
| Virginia Retirement Systems Et Al | 16,500 | $64.8K | 0.00% | +4,100+33.1% | Added |
| Invesco Ltd. | 16,683 | $65.6K | 0.00% | −13−0.1% | Reduced |
| SG Americas Securities, LLC | 17,052 | $67.0K | 0.00% | +1,288+8.2% | Added |
| Mirae Asset Global Investments Co., Ltd. | 19,763 | $77.7K | 0.00% | +31+0.2% | Added |
| Innovis Asset Management LLC | 20,072 | $78.9K | 0.04% | +20,072 | New |
| Voya Investment Management LLC | 20,075 | $78.9K | 0.00% | 00.0% | Unchanged |
| Legal & General Group Plc | 20,447 | $80.4K | 0.00% | +1,478+7.8% | Added |
| American International Group, Inc. | 22,747 | $89.4K | 0.00% | −83−0.4% | Reduced |
| UBS Asset Management Americas Inc | 24,668 | $96.9K | 0.00% | 00.0% | Unchanged |
| Two Sigma Advisers, LP | 24,800 | $97.5K | 0.00% | −12,400−33.3% | Reduced |
| Trexquant Investment LP | 24,883 | $97.8K | 0.00% | −8,022−24.4% | Reduced |
| Millennium Management LLC | 25,918 | $102.0K | 0.00% | +15,571+150.5% | Added |
| New York State Common Retirement Fund | 26,037 | $102.3K | 0.00% | +40.0% | Added |
| MetLife Investment Management | 26,317 | $103.4K | 0.00% | 00.0% | Unchanged |
| Cornercap Investment Counsel Inc | 28,519 | $112.1K | 0.02% | +174+0.6% | Added |
| Credit Suisse AG | 30,495 | $119.8K | 0.00% | −338−1.1% | Reduced |
| Marshall Wace, LLP | 34,473 | $135.5K | 0.00% | +651+1.9% | Added |
| Nisa Investment Advisors, LLC | 46,700 | $184.0K | 0.00% | +10,500+29.0% | Added |
| Cheyne Capital Management (UK) LLP | 51,126 | $200.9K | 0.35% | +51,126 | New |
| SVB Financial Group | 52,920 | $208.0K | 0.57% | +52,920 | New |
| Alliancebernstein L.P. | 56,906 | $223.6K | 0.00% | +3,900+7.4% | Added |
| California State Teachers Retirement System | 57,617 | $226.4K | 0.00% | +1,793+3.2% | Added |
| Panagora Asset Management Inc | 58,613 | $230.3K | 0.00% | +58,613 | New |
| Los Angeles Capital Management LLC | 65,332 | $256.8K | 0.00% | 00.0% | Unchanged |
| Rhumbline Advisers | 74,331 | $292.0K | 0.00% | +3,669+5.2% | Added |
| Martingale Asset Management L P | 74,304 | $292.0K | 0.01% | 00.0% | Unchanged |
| Jacobs Levy Equity Management, Inc | 82,170 | $322.9K | 0.00% | −64,097−43.8% | Reduced |
| Gsa Capital Partners LLP | 86,154 | $339.0K | 0.04% | +3,208+3.9% | Added |
| BVF Inc | 102,900 | $404.4K | 0.02% | −258,924−71.6% | Reduced |
| Swiss National Bank | 106,800 | $419.7K | 0.00% | +6,100+6.1% | Added |
| State of Wisconsin Investment Board | 122,928 | $483.1K | 0.00% | −6,745−5.2% | Reduced |
| HighVista Strategies LLC | 138,880 | $545.8K | 0.32% | −110,114−44.2% | Reduced |
| Manufacturers Life Insurance Company, The | 152,714 | $584.2K | 0.00% | +703+0.5% | Added |
| Deutsche Bank AG | 150,284 | $590.6K | 0.00% | +10,329+7.4% | Added |
| Bank of New York Mellon Corp | 163,929 | $644.2K | 0.00% | −1,486−0.9% | Reduced |
| D. E. Shaw & Co., Inc. | 226,848 | $891.5K | 0.00% | +9,431+4.3% | Added |
| TD Asset Management Inc | 231,461 | $909.6K | 0.00% | 00.0% | Unchanged |
| Renaissance Technologies LLC | 252,000 | $990.0K | 0.00% | −38,200−13.2% | Reduced |
| Sectoral Asset Management Inc | 273,787 | $1.08M | 0.21% | +273,787 | New |
| Vontobel Holding Ltd. | 273,787 | $1.08M | 0.01% | +273,787 | New |
| Nuveen Asset Management, LLC | 342,061 | $1.34M | 0.00% | −16,587−4.6% | Reduced |
| Charles Schwab Investment Management Inc | 346,307 | $1.36M | 0.00% | +5,709+1.7% | Added |
| UBS Group AG | 379,465 | $1.49M | 0.00% | +7,523+2.0% | Added |
| Northern Trust Corp | 425,146 | $1.67M | 0.00% | +11,448+2.8% | Added |
| Dimensional Fund Advisors LP | 452,460 | $1.78M | 0.00% | +119,487+35.9% | Added |
| JPMorgan Chase & Co | 461,140 | $1.81M | 0.00% | +3,065+0.7% | Added |
| Morgan Stanley | 491,976 | $1.93M | 0.00% | +5,092+1.0% | Added |
| Harvard Management Co Inc | 510,354 | $2.01M | 0.25% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 801,995 | $3.15M | 0.00% | −13,581−1.7% | Reduced |
| Bank of America Corp | 865,262 | $3.40M | 0.00% | +258,804+42.7% | Added |
| Geode Capital Management, LLC | 868,500 | $3.41M | 0.00% | +13,571+1.6% | Added |
| State Street Corp | 924,800 | $3.63M | 0.00% | +6,309+0.7% | Added |
| Great Point Partners LLC | 1,022,537 | $4.02M | 0.83% | +197,460+23.9% | Added |
| Yiheng Capital Management, L.P. | 1,186,295 | $4.66M | 0.36% | +188,438+18.9% | Added |
| Farallon Capital Management, L.L.C. | 1,249,382 | $4.91M | 0.03% | −1,250,618−50.0% | Reduced |
| Vanguard Group Inc | 2,231,499 | $8.77M | 0.00% | +12,977+0.6% | Added |
| Artal Group S.A. | 2,814,191 | $11.1M | 0.64% | 00.0% | Unchanged |
| PFM Health Sciences, LP | 2,903,192 | $11.4M | 0.48% | −110,520−3.7% | Reduced |
| T. Rowe Price Investment Management, Inc. | 3,577,755 | $14.1M | 0.01% | +95,138+2.7% | Added |
| Bellevue Group AG | 3,627,280 | $14.3M | 0.19% | 00.0% | Unchanged |
| BlackRock Inc. | 3,708,067 | $14.6M | 0.00% | +92,022+2.5% | Added |
| Price T Rowe Associates Inc | 7,261,046 | $28.5M | 0.00% | −134,527−1.8% | Reduced |
| Atlas Venture Life Science Advisors, LLC | 8,278,876 | $32.5M | 3.92% | 00.0% | Unchanged |
| FMR LLC | 8,913,331 | $35.0M | 0.00% | +61,648+0.7% | Added |
| Compagnie Lombard Odier SCmA | 0 | $0 | 0.00% | −1,050−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −49,644−100.0% | Sold out |