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 2025
Institutional positions in Generation Bio Co. as of Jun 30, 2025. 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
- 63
- −18 vs. Q1 2025
- Shares held
- 41.5M
- −6.24M (−13.1%) vs. Q1 2025
- Total value
- $13.3M
- −$6.04M (−31.3%) vs. Q1 2025
- New holders
- 15
- 11 more added
- Sold out
- 33
- 25 more reduced
Compare with Q1 2025: 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 2025
Shares, value and share of portfolio for each institution holding Generation Bio Co.; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Huntington National Bank | 1 | $0 | 0.00% | 00.0% | Unchanged |
| First Horizon Advisors, Inc. | 2 | $1 | 0.00% | 00.0% | Unchanged |
| Essential Partners LLC | 130 | $42 | 0.00% | +130 | New |
| The PNC Financial Services Group, Inc. | 255 | $82 | 0.00% | −1,541−85.8% | Reduced |
| EverSource Wealth Advisors, LLC | 391 | $125 | 0.00% | +364+1,348.1% | Added |
| SBI Securities Co., Ltd. | 530 | $170 | 0.00% | +60+12.8% | Added |
| Raymond James Financial Inc | 600 | $192 | 0.00% | +600 | New |
| Nisa Investment Advisors, LLC | 1,223 | $391 | 0.00% | −454−27.1% | Reduced |
| Point72 (DIFC) Ltd | 1,446 | $463 | 0.00% | +1,446 | New |
| Wells Fargo & Company | 1,532 | $490 | 0.00% | −28,665−94.9% | Reduced |
| BNP Paribas Arbitrage, SA | 1,705 | $546 | 0.00% | −13,212−88.6% | Reduced |
| Sterling Capital Management LLC | 1,949 | $624 | 0.00% | −854−30.5% | Reduced |
| Russell Investments Group, Ltd. | 2,703 | $865 | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 3,015 | $1.00K | 0.00% | −2,231−42.5% | Reduced |
| JPMorgan Chase & Co | 4,331 | $1.39K | 0.00% | −197,628−97.9% | Reduced |
| CWM, LLC | 6,646 | $2.00K | 0.00% | −1,706−20.4% | Reduced |
| Jump Financial, LLC | 10,280 | $3.29K | 0.00% | +10,280 | New |
| Citigroup Inc | 10,359 | $3.32K | 0.00% | −24,428−70.2% | Reduced |
| Barclays PLC | 11,483 | $3.67K | 0.00% | −49,668−81.2% | Reduced |
| Mariner, LLC | 12,292 | $3.94K | 0.00% | +12,292 | New |
| PFG Advisors | 15,000 | $4.80K | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 15,459 | $4.95K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 15,951 | $5.11K | 0.00% | −4,959−23.7% | Reduced |
| Prudential Financial Inc | 22,100 | $7.07K | 0.00% | −13,475−37.9% | Reduced |
| Abel Hall, LLC | 23,565 | $7.54K | 0.00% | +23,565 | New |
| Two Sigma Securities, LLC | 32,669 | $10.5K | 0.00% | +32,669 | New |
| Point72 Asia (Singapore) Pte. Ltd. | 34,970 | $11.2K | 0.00% | +34,970 | New |
| Qube Research & Technologies Ltd | 55,588 | $17.8K | 0.00% | +55,588 | New |
| Kestra Private Wealth Services, LLC | 57,000 | $18.2K | 0.00% | +5,000+9.6% | Added |
| AQR Capital Management LLC | 63,689 | $20.4K | 0.00% | −25,325−28.5% | Reduced |
| Callan Family Office, LLC | 69,735 | $22.3K | 0.00% | +69,735 | New |
| Two Sigma Investments, LP | 105,961 | $33.9K | 0.00% | +413+0.4% | Added |
| Aegis Wealth Management LLC | 88,890 | $36.0K | 0.02% | 00.0% | Unchanged |
| Marshall Wace, LLP | 116,201 | $37.2K | 0.00% | +116,201 | New |
| Northern Trust Corp | 133,090 | $42.6K | 0.00% | −236,817−64.0% | Reduced |
| Manufacturers Life Insurance Company, The | 143,980 | $46.1K | 0.00% | 00.0% | Unchanged |
| Y-Intercept (Hong Kong) Ltd | 148,186 | $47.4K | 0.00% | +148,186 | New |
| Palo Alto Investors LP | 150,475 | $48.2K | 0.01% | 00.0% | Unchanged |
| Two Sigma Advisers, LP | 191,400 | $61.3K | 0.00% | −2,600−1.3% | Reduced |
| Citadel Advisors LLC | 192,160 | $61.5K | 0.00% | +70,805+58.3% | Added |
| State Street Corp | 206,116 | $66.0K | 0.00% | −799,626−79.5% | Reduced |
| Charles Schwab Investment Management Inc | 236,856 | $75.8K | 0.00% | −119,585−33.5% | Reduced |
| Susquehanna International Group, LLP | 249,277 | $79.8K | 0.00% | +157,029+170.2% | Added |
| TD Asset Management Inc | 340,686 | $109.1K | 0.00% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 498,080 | $159.5K | 0.00% | −610,342−55.1% | Reduced |
| Squarepoint Ops LLC | 518,270 | $165.9K | 0.00% | +78,957+18.0% | Added |
| Militia Capital Partners, LP | 542,347 | $173.6K | 0.08% | +542,347 | New |
| Bank of America Corp | 871,951 | $279.0K | 0.00% | −415,235−32.3% | Reduced |
| UBS Group AG | 884,902 | $283.2K | 0.00% | −92,447−9.5% | Reduced |
| Morgan Stanley | 912,834 | $292.2K | 0.00% | +33,898+3.9% | Added |
| Yiheng Capital Management, L.P. | 1,055,269 | $337.8K | 0.12% | +863,739+451.0% | Added |
| Millennium Management LLC | 1,061,606 | $339.8K | 0.00% | +1,061,606 | New |
| Goldman Sachs Group Inc | 1,064,090 | $340.6K | 0.00% | −22,008−2.0% | Reduced |
| BlackRock, Inc. | 1,161,578 | $371.8K | 0.00% | −2,243,600−65.9% | Reduced |
| Acadian Asset Management LLC | 1,233,471 | $393.0K | 0.00% | +74,336+6.4% | Added |
| Baker Bros. Advisors LP | 1,944,945 | $622.6K | 0.01% | 00.0% | Unchanged |
| Vanguard Group Inc | 2,298,347 | $735.5K | 0.00% | −321,362−12.3% | Reduced |
| FMR LLC | 2,345,624 | $750.8K | 0.00% | −2,406,791−50.6% | Reduced |
| Renaissance Technologies LLC | 2,580,780 | $826.1K | 0.00% | +700,110+37.2% | Added |
| Siren, L.L.C. | 2,968,925 | $950.4K | 0.05% | 00.0% | Unchanged |
| Atlas Venture Life Science Advisors, LLC | 8,279,484 | $2.65M | 0.40% | 00.0% | Unchanged |
| Price T Rowe Associates Inc | 8,462,611 | $2.71M | 0.00% | −599,228−6.6% | Reduced |
| Accent Capital Management, LLC | 38 | – | – | +38 | New |
| Los Angeles Capital Management LLC | 0 | $0 | 0.00% | −378,914−100.0% | Sold out |
| Dimensional Fund Advisors LP | 0 | $0 | 0.00% | −191,830−100.0% | Sold out |
| Jacobs Levy Equity Management, Inc | 0 | $0 | 0.00% | −182,005−100.0% | Sold out |
| Jefferies Financial Group Inc. | 0 | $0 | 0.00% | −173,659−100.0% | Sold out |
| Nuveen, LLC | 0 | $0 | 0.00% | −169,265−100.0% | Sold out |
| Bank of New York Mellon Corp | 0 | $0 | 0.00% | −139,783−100.0% | Sold out |
| Deutsche Bank AG | 0 | $0 | 0.00% | −108,771−100.0% | Sold out |
| Ewa, LLC | 0 | $0 | 0.00% | −92,901−100.0% | Sold out |
| Panagora Asset Management Inc | 0 | $0 | 0.00% | −86,373−100.0% | Sold out |
| Integrated Wealth Concepts LLC | 0 | $0 | 0.00% | −72,720−100.0% | Sold out |
| Alliancebernstein L.P. | 0 | $0 | 0.00% | −72,155−100.0% | Sold out |
| Rhumbline Advisers | 0 | $0 | 0.00% | −69,754−100.0% | Sold out |
| Bridgeway Capital Management, LLC | 0 | $0 | 0.00% | −55,200−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −52,440−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −38,723−100.0% | Sold out |
| Intech Investment Management LLC | 0 | $0 | 0.00% | −37,954−100.0% | Sold out |
| Mirae Asset Global ETFs Holdings Ltd. | 0 | $0 | 0.00% | −29,957−100.0% | Sold out |
| Corebridge Financial, Inc. | 0 | $0 | 0.00% | −24,239−100.0% | Sold out |
| Ieq Capital, LLC | 0 | $0 | 0.00% | −20,439−100.0% | Sold out |
| SG Americas Securities, LLC | 0 | $0 | 0.00% | −18,209−100.0% | Sold out |
| Cerity Partners LLC | 0 | $0 | 0.00% | −16,852−100.0% | Sold out |
| Police & Firemen's Retirement System of New Jersey | 0 | $0 | 0.00% | −15,793−100.0% | Sold out |
| Invesco Ltd. | 0 | $0 | 0.00% | −13,536−100.0% | Sold out |
| CIBC World Markets Corp | 0 | $0 | 0.00% | −10,979−100.0% | Sold out |
| ProShare Advisors LLC | 0 | $0 | 0.00% | −10,711−100.0% | Sold out |
| Legal & General Group Plc | 0 | $0 | 0.00% | −3,919−100.0% | Sold out |
| California State Teachers Retirement System | 0 | $0 | 0.00% | −3,585−100.0% | Sold out |
| Public Employees Retirement System of Ohio | 0 | $0 | 0.00% | −3,534−100.0% | Sold out |
| Ameritas Investment Partners, Inc. | 0 | $0 | 0.00% | −3,277−100.0% | Sold out |
| New York State Common Retirement Fund | 0 | $0 | 0.00% | −2,682−100.0% | Sold out |
| Amalgamated Bank | 0 | $0 | 0.00% | −1,526−100.0% | Sold out |
| CoreCap Advisors, LLC | 0 | $0 | 0.00% | −946−100.0% | Sold out |
| True Wealth Design, LLC | 0 | $0 | 0.00% | −129−100.0% | Sold out |