BlackRock, Inc. 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 |
| 2025-07-17 7:54 pm Sale | 2025-06-30 | 13G | Generation Bio Co. GBIO | BlackRock Inc. BLK | 115,205 1.700% | -226,395 (-66.27%) | Filing |
| 2024-11-08 2:17 pm Unchanged | 2024-09-30 | 13G | Generation Bio Co. GBIO | BlackRock Inc. BLK | 341,600 5.100% | 0 (Unchanged) | Filing |
| 2024-10-23 5:04 pm Purchase | 2024-09-30 | 13G | Generation Bio Co. GBIO | BlackRock Inc. BLK | 341,600 5.100% | 24,758 (+7.81%) | Filing |
| 2024-01-08 4:35 pm Sale | 2023-12-31 | 13G | Generation Bio Co. GBIO | BlackRock Inc. BLK | 316,842 4.800% | -53,965 (-14.55%) | Filing |
| 2023-02-01 4:54 pm Purchase | 2022-12-31 | 13G | Generation Bio Co. GBIO | BlackRock Inc. BLK | 370,807 6.200% | 54,041 (+17.06%) | Filing |
| 2022-02-04 4:12 pm Purchase | 2021-12-31 | 13G | Generation Bio Co. GBIO | BlackRock Inc. BLK | 316,766 5.600% | 316,766 (New Position) | Filing |