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, Q1 2022
Institutional positions in Generation Bio Co. as of Mar 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
- 89
- 0 vs. Q4 2021
- Shares held
- 56.5M
- +1.50M (+2.7%) vs. Q4 2021
- Total value
- $415.8M
- +$25.5M (+6.5%) vs. Q4 2021
- New holders
- 14
- 31 more added
- Sold out
- 14
- 30 more reduced
Compare with Q4 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, Q1 2022
Shares, value and share of portfolio for each institution holding Generation Bio Co.; share changes are against Q4 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Huntington National Bank | 1 | $0 | 0.00% | 00.0% | Unchanged |
| First Horizon Advisors, Inc. | 16 | $0 | 0.00% | −48−75.0% | Reduced |
| Capital Advisors, Ltd. LLC | 12 | $0 | 0.00% | +12 | New |
| Signaturefd, LLC | 86 | $1.00K | 0.00% | −1,340−94.0% | Reduced |
| Daiwa Securities Group Inc. | 194 | $1.00K | 0.00% | 00.0% | Unchanged |
| US Bancorp | 276 | $2.00K | 0.00% | +276 | New |
| Macquarie Group Ltd | 498 | $4.00K | 0.00% | 00.0% | Unchanged |
| RPg Family Wealth Advisory, LLC | 758 | $5.56K | 0.00% | +758 | New |
| Manchester Capital Management LLC | 1,000 | $7.00K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 1,126 | $8.00K | 0.00% | −4,232−79.0% | Reduced |
| Compagnie Lombard Odier SCmA | 1,050 | $8.00K | 0.00% | 00.0% | Unchanged |
| Great West Life Assurance Co | 2,286 | $18.0K | 0.00% | +210+10.1% | Added |
| Metropolitan Life Insurance Co | 3,046 | $22.4K | 0.00% | −7,081−69.9% | Reduced |
| Ameritas Investment Partners, Inc. | 3,277 | $24.0K | 0.00% | 00.0% | Unchanged |
| UBS Group AG | 6,177 | $45.0K | 0.00% | −103,150−94.3% | Reduced |
| Wells Fargo & Company | 6,106 | $45.0K | 0.00% | −14,007−69.6% | Reduced |
| Amalgamated Bank | 7,040 | $52.0K | 0.00% | +7,040 | New |
| Amalgamated Financial Corp. | 7,040 | $52.0K | 0.00% | +7,040 | New |
| Barclays PLC | 7,285 | $54.0K | 0.00% | +7,285 | New |
| Ensign Peak Advisors, Inc | 7,790 | $57.0K | 0.00% | 00.0% | Unchanged |
| Quantbot Technologies LP | 8,000 | $58.0K | 0.01% | +7,700+2,566.7% | Added |
| Royal Bank of Canada | 9,043 | $67.0K | 0.00% | −7,119−44.0% | Reduced |
| Prelude Capital Management, LLC | 10,098 | $74.0K | 0.00% | +10,098 | New |
| Rafferty Asset Management, LLC | 11,140 | $82.0K | 0.00% | −103,376−90.3% | Reduced |
| Virginia Retirement Systems Et Al | 11,400 | $84.0K | 0.00% | +11,400 | New |
| ProShare Advisors LLC | 14,115 | $103.0K | 0.00% | −3,443−19.6% | Reduced |
| Victory Capital Management Inc | 17,736 | $112.0K | 0.00% | −78,835−81.6% | Reduced |
| Voya Investment Management LLC | 15,710 | $115.0K | 0.00% | 00.0% | Unchanged |
| Legal & General Group Plc | 16,689 | $123.0K | 0.00% | +167+1.0% | Added |
| New York State Common Retirement Fund | 17,268 | $127.0K | 0.00% | −14,200−45.1% | Reduced |
| Parametric Portfolio Associates LLC | 17,454 | $128.0K | 0.00% | +7,174+69.8% | Added |
| DekaBank Deutsche Girozentrale | 19,400 | $139.0K | 0.00% | +1,800+10.2% | Added |
| Invesco Ltd. | 19,176 | $141.0K | 0.00% | +226+1.2% | Added |
| MetLife Investment Management | 19,788 | $145.2K | 0.00% | +16,357+476.7% | Added |
| Citigroup Inc | 19,921 | $146.0K | 0.00% | −92,763−82.3% | Reduced |
| Thrivent Financial for Lutherans | 19,836 | $146.0K | 0.00% | +19,836 | New |
| American International Group, Inc. | 21,754 | $160.0K | 0.00% | −1,531−6.6% | Reduced |
| Bank of America Corp | 21,945 | $161.0K | 0.00% | −146,300−87.0% | Reduced |
| Jane Street Group, LLC | 24,715 | $181.0K | 0.00% | +24,715 | New |
| UBS Asset Management Americas Inc | 24,668 | $181.1K | 0.00% | 00.0% | Unchanged |
| Credit Suisse AG | 26,472 | $195.0K | 0.00% | +1,519+6.1% | Added |
| Tudor Investment Corp Et Al | 28,181 | $207.0K | 0.01% | +7,571+36.7% | Added |
| Susquehanna International Group, LLP | 30,557 | $224.0K | 0.00% | −10,496−25.6% | Reduced |
| Schonfeld Strategic Advisors LLC | 30,400 | $224.0K | 0.00% | +30,400 | New |
| Marshall Wace, LLP | 34,473 | $253.0K | 0.00% | −19,996−36.7% | Reduced |
| Nisa Investment Advisors, LLC | 34,700 | $255.0K | 0.00% | +33,900+4,237.5% | Added |
| Squarepoint Ops LLC | 37,758 | $277.0K | 0.00% | +37,758 | New |
| Occudo Quantitative Strategies LP | 38,120 | $280.0K | 0.02% | +16,461+76.0% | Added |
| Rhumbline Advisers | 44,156 | $324.0K | 0.00% | +279+0.6% | Added |
| Alliancebernstein L.P. | 46,106 | $338.0K | 0.00% | +100+0.2% | Added |
| Citadel Advisors LLC | 48,488 | $356.0K | 0.00% | +19,782+68.9% | Added |
| California State Teachers Retirement System | 50,354 | $370.0K | 0.00% | −4,689−8.5% | Reduced |
| HRT Financial LP | 58,448 | $429.0K | 0.00% | −8,105−12.2% | Reduced |
| Los Angeles Capital Management LLC | 68,392 | $502.0K | 0.00% | +47,123+221.6% | Added |
| Two Sigma Advisers, LP | 69,000 | $506.0K | 0.00% | −8,900−11.4% | Reduced |
| Renaissance Technologies LLC | 72,500 | $532.0K | 0.00% | −156,400−68.3% | Reduced |
| Martingale Asset Management L P | 78,336 | $575.0K | 0.01% | +60,383+336.3% | Added |
| Swiss National Bank | 87,400 | $642.0K | 0.00% | +6,000+7.4% | Added |
| PDT Partners, LLC | 95,615 | $702.0K | 0.06% | +58,772+159.5% | Added |
| Two Sigma Investments, LP | 114,924 | $844.0K | 0.00% | −128,058−52.7% | Reduced |
| Dimensional Fund Advisors LP | 124,736 | $915.0K | 0.00% | −7,392−5.6% | Reduced |
| HighVista Strategies LLC | 131,295 | $964.0K | 0.61% | +131,295 | New |
| Bank of New York Mellon Corp | 143,405 | $1.05M | 0.00% | −464,894−76.4% | Reduced |
| Manufacturers Life Insurance Company, The | 152,529 | $1.10M | 0.00% | +129,270+555.8% | Added |
| Deutsche Bank AG | 152,576 | $1.12M | 0.00% | +220+0.1% | Added |
| State of Wisconsin Investment Board | 152,800 | $1.12M | 0.00% | +98,500+181.4% | Added |
| Goldman Sachs Group Inc | 205,168 | $1.51M | 0.00% | +134,178+189.0% | Added |
| TD Asset Management Inc | 209,961 | $1.54M | 0.00% | −27,660−11.6% | Reduced |
| Morgan Stanley | 213,349 | $1.57M | 0.00% | −30,802−12.6% | Reduced |
| D. E. Shaw & Co., Inc. | 226,601 | $1.66M | 0.00% | +66,214+41.3% | Added |
| Charles Schwab Investment Management Inc | 291,712 | $2.14M | 0.00% | −26,863−8.4% | Reduced |
| Nuveen Asset Management, LLC | 173,028 | $2.40M | 0.00% | +38,916+29.0% | Added |
| Northern Trust Corp | 404,176 | $2.97M | 0.00% | −16,008−3.8% | Reduced |
| Harvard Management Co Inc | 510,354 | $3.75M | 0.38% | 00.0% | Unchanged |
| PFM Health Sciences, LP | 574,278 | $4.21M | 0.16% | +574,278 | New |
| JPMorgan Chase & Co | 660,275 | $4.85M | 0.00% | +98,270+17.5% | Added |
| Geode Capital Management, LLC | 793,037 | $5.82M | 0.00% | +43,821+5.8% | Added |
| State Street Corp | 858,936 | $6.30M | 0.00% | −1,088,973−55.9% | Reduced |
| Casdin Capital, LLC | 1,324,275 | $9.72M | 0.44% | 00.0% | Unchanged |
| Yiheng Capital Management, L.P. | 2,597,631 | $19.1M | 1.22% | +622,485+31.5% | Added |
| BVF Inc | 2,802,950 | $20.6M | 0.82% | +2,613,900+1,382.7% | Added |
| Artal Group S.A. | 2,814,191 | $20.7M | 0.87% | 00.0% | Unchanged |
| BlackRock Inc. | 3,168,813 | $23.3M | 0.00% | +1,1570.0% | Added |
| Farallon Capital Management, L.L.C. | 3,500,000 | $25.7M | 0.14% | 00.0% | Unchanged |
| Vanguard Group Inc | 3,549,177 | $26.1M | 0.00% | −45,284−1.3% | Reduced |
| Bellevue Group AG | 3,682,180 | $27.0M | 0.31% | −190,000−4.9% | Reduced |
| Atlas Venture Life Science Advisors, LLC | 8,278,876 | $60.8M | 7.68% | 00.0% | Unchanged |
| FMR LLC | 8,550,767 | $62.8M | 0.01% | +14,305+0.2% | Added |
| Price T Rowe Associates Inc | 8,763,691 | $64.3M | 0.01% | +116,570+1.3% | Added |
| Millennium Management LLC | 0 | $0 | 0.00% | −538,391−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −62,139−100.0% | Sold out |
| Nomura Holdings Inc | 0 | $0 | 0.00% | −43,534−100.0% | Sold out |
| Cubist Systematic Strategies, LLC | 0 | $0 | 0.00% | −38,421−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −33,265−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −28,700−100.0% | Sold out |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −23,503−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −17,739−100.0% | Sold out |
| Alpine Global Management, LLC | 0 | $0 | 0.00% | −11,750−100.0% | Sold out |
| Graham Capital Management, L.P. | 0 | $0 | 0.00% | −11,421−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −4,674−100.0% | Sold out |