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 2021
Institutional positions in Generation Bio Co. as of Jun 30, 2021. 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
- +10 vs. Q1 2021
- Shares held
- 46.5M
- +1.92M (+4.3%) vs. Q1 2021
- Total value
- $1.25B
- −$18.7M (−1.5%) vs. Q1 2021
- New holders
- 20
- 40 more added
- Sold out
- 10
- 22 more reduced
Compare with Q1 2021: 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 2021
Shares, value and share of portfolio for each institution holding Generation Bio Co.; share changes are against Q1 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| First Horizon Advisors, Inc. | 30 | $0 | 0.00% | +13+76.5% | Added |
| First Horizon Corp | 8 | $0 | 0.00% | +8 | New |
| Signaturefd, LLC | 29 | $1.00K | 0.00% | +29 | New |
| Farmers & Merchants Investments Inc | 87 | $2.00K | 0.00% | 00.0% | Unchanged |
| Daiwa Securities Group Inc. | 108 | $3.00K | 0.00% | 00.0% | Unchanged |
| Wells Fargo & Company | 186 | $5.00K | 0.00% | −3,162−94.4% | Reduced |
| Private Capital Group, LLC | 168 | $5.00K | 0.00% | 00.0% | Unchanged |
| Huntington National Bank | 209 | $6.00K | 0.00% | 00.0% | Unchanged |
| The PNC Financial Services Group, Inc. | 339 | $9.00K | 0.00% | +15+4.6% | Added |
| Macquarie Group Ltd | 498 | $13.0K | 0.00% | −294−37.1% | Reduced |
| Advisor Group Holdings, Inc. | 666 | $18.0K | 0.00% | −110−14.2% | Reduced |
| RPg Family Wealth Advisory, LLC | 758 | $20.4K | 0.01% | +758 | New |
| Nisa Investment Advisors, LLC | 800 | $22.0K | 0.00% | +800 | New |
| Compagnie Lombard Odier SCmA | 1,050 | $28.0K | 0.00% | 00.0% | Unchanged |
| FORA Capital, LLC | 1,108 | $30.0K | 0.01% | +1,108 | New |
| Penserra Capital Management LLC | 1,290 | $34.0K | 0.00% | +60+4.9% | Added |
| Great West Life Assurance Co | 1,866 | $50.0K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 2,804 | $75.0K | 0.00% | +1,023+57.4% | Added |
| Ameritas Investment Partners, Inc. | 3,277 | $88.0K | 0.00% | 00.0% | Unchanged |
| Tortoise Investment Management, LLC | 3,325 | $89.0K | 0.02% | −1,750−34.5% | Reduced |
| Royal Bank of Canada | 4,376 | $118.0K | 0.00% | −1,866−29.9% | Reduced |
| Wetherby Asset Management Inc | 7,594 | $204.0K | 0.01% | +7,594 | New |
| Private Advisor Group, LLC | 7,661 | $206.0K | 0.00% | +15+0.2% | Added |
| State Board of Administration of Florida Retirement System | 7,955 | $214.0K | 0.00% | +7,955 | New |
| Amalgamated Bank | 8,143 | $219.0K | 0.00% | +8,143 | New |
| Renaissance Technologies LLC | 8,400 | $226.0K | 0.00% | +8,400 | New |
| Trexquant Investment LP | 8,608 | $232.0K | 0.02% | +8,608 | New |
| Legal & General Group Plc | 9,427 | $254.0K | 0.00% | +371+4.1% | Added |
| Handelsbanken Fonder AB | 9,500 | $256.0K | 0.00% | +9,500 | New |
| Arizona State Retirement System | 9,844 | $265.0K | 0.00% | +923+10.3% | Added |
| Dynamic Technology Lab Private Ltd | 10,080 | $271.0K | 0.03% | +10,080 | New |
| Darwin Global Management, Ltd. | 10,738 | $289.0K | 0.05% | −208,620−95.1% | Reduced |
| Thrivent Financial for Lutherans | 11,021 | $296.0K | 0.00% | +11,021 | New |
| Metropolitan Life Insurance Co | 11,983 | $322.3K | 0.00% | +578+5.1% | Added |
| Principal Financial Group Inc | 12,585 | $339.0K | 0.00% | +4,939+64.6% | Added |
| PDT Partners, LLC | 12,644 | $340.0K | 0.02% | +12,644 | New |
| Parametric Portfolio Associates LLC | 12,764 | $343.0K | 0.00% | +2,392+23.1% | Added |
| MetLife Investment Management | 15,606 | $419.8K | 0.00% | 00.0% | Unchanged |
| Dana Investment Advisors, Inc. | 16,098 | $433.0K | 0.02% | +2,286+16.6% | Added |
| Sectoral Asset Management Inc | 16,522 | $444.0K | 0.04% | −5,000−23.2% | Reduced |
| DekaBank Deutsche Girozentrale | 17,100 | $454.0K | 0.00% | 00.0% | Unchanged |
| UBS Group AG | 17,217 | $463.0K | 0.00% | −9,968−36.7% | Reduced |
| Voya Investment Management LLC | 17,258 | $464.0K | 0.00% | −328−1.9% | Reduced |
| Invesco Ltd. | 17,694 | $476.0K | 0.00% | +17,694 | New |
| Bank of America Corp | 18,408 | $496.0K | 0.00% | +103+0.6% | Added |
| Citadel Advisors LLC | 19,197 | $516.0K | 0.00% | −17,286−47.4% | Reduced |
| Susquehanna Fundamental Investments, LLC | 19,500 | $525.0K | 0.01% | 00.0% | Unchanged |
| ProShare Advisors LLC | 21,542 | $579.0K | 0.00% | +3,230+17.6% | Added |
| Ameriprise Financial Inc | 22,435 | $604.0K | 0.00% | +1,913+9.3% | Added |
| UBS Asset Management Americas Inc | 22,474 | $604.6K | 0.00% | +4,574+25.6% | Added |
| Credit Suisse AG | 22,721 | $611.0K | 0.00% | +168+0.7% | Added |
| Squarepoint Ops LLC | 22,942 | $617.0K | 0.00% | +22,942 | New |
| Manufacturers Life Insurance Company, The | 24,121 | $649.0K | 0.00% | +2,101+9.5% | Added |
| Simplex Trading, LLC | 24,398 | $656.0K | 0.02% | −31,632−56.5% | Reduced |
| American International Group, Inc. | 24,552 | $660.0K | 0.00% | +1,069+4.6% | Added |
| Los Angeles Capital Management LLC | 32,442 | $873.0K | 0.00% | −350−1.1% | Reduced |
| Susquehanna International Group, LLP | 32,524 | $875.0K | 0.00% | −8,173−20.1% | Reduced |
| Millennium Management LLC | 37,440 | $1.01M | 0.00% | +37,440 | New |
| New York State Common Retirement Fund | 39,227 | $1.05M | 0.00% | +17,027+76.7% | Added |
| Rhumbline Advisers | 43,135 | $1.16M | 0.00% | +940+2.2% | Added |
| Alliancebernstein L.P. | 46,006 | $1.24M | 0.00% | 00.0% | Unchanged |
| Marshall Wace North America L.P. | 50,545 | $1.36M | 0.01% | +50,545 | New |
| State of Wisconsin Investment Board | 54,300 | $1.46M | 0.00% | 00.0% | Unchanged |
| California State Teachers Retirement System | 60,407 | $1.63M | 0.00% | −367−0.6% | Reduced |
| Penn Mutual Asset Management, LLC | 73,065 | $1.97M | 2.46% | +5,000+7.3% | Added |
| Swiss National Bank | 79,800 | $2.15M | 0.00% | +9,800+14.0% | Added |
| Rafferty Asset Management, LLC | 87,424 | $2.35M | 0.01% | −8,451−8.8% | Reduced |
| Marshall Wace, LLP | 111,330 | $3.00M | 0.02% | +111,330 | New |
| Voloridge Investment Management, LLC | 114,284 | $3.07M | 0.02% | −13,622−10.7% | Reduced |
| Laurion Capital Management LP | 118,598 | $3.19M | 0.05% | −6,402−5.1% | Reduced |
| D. E. Shaw & Co., Inc. | 125,150 | $3.37M | 0.00% | −8,910−6.6% | Reduced |
| TD Asset Management Inc | 177,915 | $3.87M | 0.00% | +20,474+13.0% | Added |
| Deutsche Bank AG | 157,279 | $4.23M | 0.00% | +9,405+6.4% | Added |
| Citigroup Inc | 158,792 | $4.27M | 0.00% | +38,443+31.9% | Added |
| Nuveen Asset Management, LLC | 159,819 | $4.30M | 0.00% | +41,699+35.3% | Added |
| Charles Schwab Investment Management Inc | 193,894 | $5.22M | 0.00% | +11,569+6.3% | Added |
| AWM Investment Company, Inc. | 225,599 | $6.07M | 0.60% | 00.0% | Unchanged |
| American Century Companies Inc | 246,377 | $6.63M | 0.00% | +103,883+72.9% | Added |
| Morgan Stanley | 254,308 | $6.84M | 0.00% | +253,681+40,459.5% | Added |
| Goldman Sachs Group Inc | 378,623 | $10.2M | 0.00% | −145,733−27.8% | Reduced |
| Northern Trust Corp | 405,430 | $10.9M | 0.00% | +17,958+4.6% | Added |
| Harvard Management Co Inc | 512,349 | $13.8M | 0.79% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 562,873 | $15.1M | 0.00% | +39,725+7.6% | Added |
| Bank of New York Mellon Corp | 622,073 | $16.7M | 0.00% | +54,479+9.6% | Added |
| Ensign Peak Advisors, Inc | 727,796 | $19.6M | 0.04% | +11,220+1.6% | Added |
| Victory Capital Management Inc | 1,120,980 | $30.2M | 0.03% | +38,172+3.5% | Added |
| Yiheng Capital Management, L.P. | 1,416,483 | $38.1M | 1.53% | +1,416,483 | New |
| JPMorgan Chase & Co | 1,466,092 | $39.4M | 0.01% | −46,673−3.1% | Reduced |
| Carmignac Gestion | 1,473,524 | $39.6M | 0.46% | −62,212−4.1% | Reduced |
| Casdin Capital, LLC | 1,611,214 | $43.3M | 1.10% | 00.0% | Unchanged |
| State Street Corp | 2,244,201 | $60.4M | 0.00% | +131,574+6.2% | Added |
| Bellevue Group AG | 2,478,180 | $66.7M | 0.65% | +85,000+3.6% | Added |
| Artal Group S.A. | 2,814,191 | $75.7M | 1.72% | 00.0% | Unchanged |
| BlackRock Inc. | 2,850,140 | $76.7M | 0.00% | −63,315−2.2% | Reduced |
| Vanguard Group Inc | 3,225,326 | $86.8M | 0.00% | +289,944+9.9% | Added |
| Farallon Capital Management, L.L.C. | 3,500,000 | $94.2M | 0.45% | +229,500+7.0% | Added |
| Price T Rowe Associates Inc | 7,363,115 | $198.1M | 0.02% | +878,571+13.5% | Added |
| FMR LLC | 8,495,022 | $228.5M | 0.02% | +30,913+0.4% | Added |
| Deerfield Management Company, L.P. (Series C) | 0 | $0 | 0.00% | −897,779−100.0% | Sold out |
| Wellington Management Group LLP | 0 | $0 | 0.00% | −571,705−100.0% | Sold out |