The Vanguard Group 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 |
| 2023-02-09 11:19 am Sale | 2022-12-30 | 13G | Generation Bio Co. GBIO | The Vanguard Group | 223,150 3.760% | -136,296 (-37.92%) | Filing |
| 2022-02-10 08:11 am Purchase | 2021-12-31 | 13G | Generation Bio Co. GBIO | The Vanguard Group | 359,446 6.320% | 359,446 (New Position) | Filing |