FMR LLC 13D and 13G filings for Generation Bio Co.:
- Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
- Shares have been adjusted for stock splits.
| Reported DateTime | Transaction Date | Type | Company Symbol | Filed By Symbol | Shares Owned % Owned | Shares Vs. Prev Report | View |
| 2025-08-06 12:01 pm Purchase | 2025-06-30 | 13G | Generation Bio Co. GBIO | FMR LLC | 2,345,624 3.500% | 1,883,020 (+407.05%) | Filing |
| 2025-02-12 09:28 am Sale | 2024-12-31 | 13G | Generation Bio Co. GBIO | FMR LLC | 462,605 6.900% | -72,635 (-13.57%) | Filing |
| 2024-02-09 09:03 am Sale | 2024-02-08 | 13G | Generation Bio Co. GBIO | FMR LLC | 535,240 8.100% | -121,096 (-18.45%) | Filing |
| 2023-12-11 09:09 am Sale | 2023-12-08 | 13G | Generation Bio Co. GBIO | FMR LLC | 656,336 9.932% | -234,997 (-26.36%) | Filing |
| 2023-02-09 10:59 am Purchase | 2023-02-09 | 13G | Generation Bio Co. GBIO | FMR LLC | 891,333 14.999% | 37,687 (+4.41%) | Filing |
| 2022-02-09 09:19 am Purchase | 2022-02-08 | 13G | Generation Bio Co. GBIO | FMR LLC | 853,646 14.999% | 135,560 (+18.88%) | Filing |
| 2021-02-08 10:23 am Sale | 2021-02-05 | 13G | Generation Bio Co. GBIO | FMR LLC | 718,086 15.437% | -19,301 (-2.62%) | Filing |