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 2024
Institutional positions in Generation Bio Co. as of Jun 30, 2024. 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
- 79
- +2 vs. Q1 2024
- Shares held
- 55.5M
- +533.3K (+1.0%) vs. Q1 2024
- Total value
- $156.5M
- −$67.2M (−30.0%) vs. Q1 2024
- New holders
- 11
- 31 more added
- Sold out
- 9
- 24 more reduced
Compare with Q1 2024: 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 2024
Shares, value and share of portfolio for each institution holding Generation Bio Co.; share changes are against Q1 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Simplex Trading, LLC | 172 | $0 | 0.00% | −24,920−99.3% | Reduced |
| CWM, LLC | 26 | $0 | 0.00% | +24+1,200.0% | Added |
| Capital Advisors, Ltd. LLC | 38 | $0 | 0.00% | 00.0% | Unchanged |
| Huntington National Bank | 1 | $3 | 0.00% | 00.0% | Unchanged |
| First Horizon Advisors, Inc. | 2 | $6 | 0.00% | 00.0% | Unchanged |
| SRS Capital Advisors, Inc. | 38 | $108 | 0.00% | +38 | New |
| The PNC Financial Services Group, Inc. | 53 | $149 | 0.00% | +53 | New |
| GAMMA Investing LLC | 79 | $223 | 0.00% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 98 | $276 | 0.00% | +83+553.3% | Added |
| Advisor Group Holdings, Inc. | 107 | $302 | 0.00% | +107 | New |
| Amalgamated Bank | 1,526 | $4.00K | 0.00% | 00.0% | Unchanged |
| New York State Common Retirement Fund | 2,682 | $7.56K | 0.00% | +23+0.9% | Added |
| Ameritas Investment Partners, Inc. | 3,277 | $9.24K | 0.00% | 00.0% | Unchanged |
| California State Teachers Retirement System | 3,585 | $10.1K | 0.00% | −968−21.3% | Reduced |
| Legal & General Group Plc | 3,919 | $11.1K | 0.00% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 4,912 | $13.9K | 0.00% | +4,912 | New |
| Public Employees Retirement System of Ohio | 8,500 | $24.0K | 0.00% | +8,500 | New |
| Royal Bank of Canada | 10,670 | $30.0K | 0.00% | +3,638+51.7% | Added |
| Citigroup Inc | 11,134 | $31.4K | 0.00% | +2,622+30.8% | Added |
| Sherbrooke Park Advisers LLC | 11,157 | $31.5K | 0.01% | +11,157 | New |
| Invesco Ltd. | 13,352 | $37.7K | 0.00% | −2,075−13.5% | Reduced |
| Tower Research Capital LLC (TRC) | 13,447 | $37.9K | 0.00% | +8,863+193.3% | Added |
| PFG Advisors | 15,000 | $42.3K | 0.00% | +5,000+50.0% | Added |
| Voya Investment Management LLC | 17,201 | $48.5K | 0.00% | +948+5.8% | Added |
| Ameriprise Financial Inc | 17,774 | $50.1K | 0.00% | +17,774 | New |
| Cubist Systematic Strategies, LLC | 19,046 | $53.7K | 0.00% | +9,075+91.0% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 22,778 | $64.2K | 0.00% | +22,778 | New |
| Wells Fargo & Company | 26,077 | $73.5K | 0.00% | +5,705+28.0% | Added |
| Corebridge Financial, Inc. | 26,619 | $75.1K | 0.00% | +26,619 | New |
| MetLife Investment Management | 28,396 | $80.1K | 0.00% | +4,040+16.6% | Added |
| Barclays PLC | 28,791 | $81.2K | 0.00% | −8,614−23.0% | Reduced |
| American Century Companies Inc | 31,786 | $89.6K | 0.00% | +21,167+199.3% | Added |
| Kestra Private Wealth Services, LLC | 32,000 | $90.2K | 0.00% | −20,300−38.8% | Reduced |
| Citadel Advisors LLC | 49,475 | $139.5K | 0.00% | −8,146−14.1% | Reduced |
| Jane Street Group, LLC | 49,618 | $139.9K | 0.00% | +21,195+74.6% | Added |
| Prudential Financial Inc | 50,975 | $143.8K | 0.00% | +9,800+23.8% | Added |
| Cornercap Investment Counsel Inc | 57,424 | $161.9K | 0.03% | −16,746−22.6% | Reduced |
| Alliancebernstein L.P. | 72,155 | $203.5K | 0.00% | +6,870+10.5% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 76,558 | $215.9K | 0.00% | −14,201−15.6% | Reduced |
| Rhumbline Advisers | 78,903 | $222.5K | 0.00% | +5,430+7.4% | Added |
| Panagora Asset Management Inc | 87,620 | $247.1K | 0.00% | −323−0.4% | Reduced |
| Millennium Management LLC | 97,948 | $276.2K | 0.00% | −124,795−56.0% | Reduced |
| Wellington Management Group LLP | 119,356 | $336.6K | 0.00% | +119,356 | New |
| XTX Topco Ltd | 132,716 | $374.3K | 0.03% | −33,491−20.2% | Reduced |
| Palo Alto Investors LP | 150,475 | $424.3K | 0.05% | +150,475 | New |
| Manufacturers Life Insurance Company, The | 164,573 | $464.1K | 0.00% | +13,104+8.7% | Added |
| Nuveen Asset Management, LLC | 169,265 | $477.3K | 0.00% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 173,694 | $489.8K | 0.00% | −94,384−35.2% | Reduced |
| Bank of New York Mellon Corp | 186,756 | $526.7K | 0.00% | +44,378+31.2% | Added |
| Yiheng Capital Management, L.P. | 191,530 | $540.1K | 0.08% | 00.0% | Unchanged |
| Two Sigma Investments, LP | 229,419 | $647.0K | 0.00% | −84,732−27.0% | Reduced |
| Two Sigma Advisers, LP | 272,000 | $767.0K | 0.00% | −61,600−18.5% | Reduced |
| Bridgeway Capital Management, LLC | 274,000 | $772.7K | 0.02% | +32,400+13.4% | Added |
| Jacobs Levy Equity Management, Inc | 301,053 | $849.0K | 0.00% | +268,701+830.6% | Added |
| TD Asset Management Inc | 340,686 | $960.7K | 0.00% | 00.0% | Unchanged |
| Los Angeles Capital Management LLC | 341,861 | $964.0K | 0.00% | −39,800−10.4% | Reduced |
| Northern Trust Corp | 365,912 | $1.03M | 0.00% | −17,374−4.5% | Reduced |
| Charles Schwab Investment Management Inc | 414,607 | $1.17M | 0.00% | +25,352+6.5% | Added |
| Dimensional Fund Advisors LP | 485,396 | $1.37M | 0.00% | −18,855−3.7% | Reduced |
| D. E. Shaw & Co., Inc. | 487,540 | $1.37M | 0.00% | +43,832+9.9% | Added |
| Deutsche Bank AG | 557,996 | $1.57M | 0.00% | −693,570−55.4% | Reduced |
| Acadian Asset Management LLC | 594,569 | $1.68M | 0.01% | +114,734+23.9% | Added |
| Renaissance Technologies LLC | 636,400 | $1.79M | 0.00% | −28,100−4.2% | Reduced |
| PFM Health Sciences, LP | 787,914 | $2.22M | 0.12% | −834,573−51.4% | Reduced |
| UBS Group AG | 837,848 | $2.36M | 0.00% | −30,252−3.5% | Reduced |
| Morgan Stanley | 936,396 | $2.64M | 0.00% | −5,386−0.6% | Reduced |
| State Street Corp | 980,519 | $2.77M | 0.00% | +15,910+1.6% | Added |
| Geode Capital Management, LLC | 1,135,914 | $3.20M | 0.00% | +65,225+6.1% | Added |
| Baker Bros. Advisors LP | 1,206,957 | $3.40M | 0.04% | +835,738+225.1% | Added |
| Goldman Sachs Group Inc | 1,275,016 | $3.60M | 0.00% | +32,925+2.7% | Added |
| EcoR1 Capital, LLC | 2,046,867 | $5.77M | 0.18% | 00.0% | Unchanged |
| Vanguard Group Inc | 2,588,572 | $7.30M | 0.00% | +18,116+0.7% | Added |
| Artal Group S.A. | 2,830,591 | $7.98M | 0.20% | 00.0% | Unchanged |
| Bank of America Corp | 2,981,448 | $8.41M | 0.00% | −8,158−0.3% | Reduced |
| BlackRock Inc. | 3,294,247 | $9.29M | 0.00% | +245,398+8.0% | Added |
| Bellevue Group AG | 3,918,856 | $11.1M | 0.18% | +57,281+1.5% | Added |
| FMR LLC | 5,304,610 | $15.0M | 0.00% | −29,649−0.6% | Reduced |
| Atlas Venture Life Science Advisors, LLC | 8,279,484 | $23.3M | 2.46% | 00.0% | Unchanged |
| Price T Rowe Associates Inc | 9,513,626 | $26.8M | 0.00% | +635,265+7.2% | Added |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −64,244−100.0% | Sold out |
| Man Group plc | 0 | $0 | 0.00% | −38,317−100.0% | Sold out |
| American International Group, Inc. | 0 | $0 | 0.00% | −22,317−100.0% | Sold out |
| Mirae Asset Global Investments Co., Ltd. | 0 | $0 | 0.00% | −18,259−100.0% | Sold out |
| Susquehanna International Group, LLP | 0 | $0 | 0.00% | −17,841−100.0% | Sold out |
| SG Americas Securities, LLC | 0 | $0 | 0.00% | −16,626−100.0% | Sold out |
| Metropolitan Life Insurance Co | 0 | $0 | 0.00% | −2,507−100.0% | Sold out |
| Point72 (DIFC) Ltd | 0 | $0 | 0.00% | −218−100.0% | Sold out |
| Nelson, Van Denburg & Campbell Wealth Management Group, LLC | 0 | $0 | 0.00% | −9−100.0% | Sold out |