Granahan Investment Management LLC 13D and 13G filings for bluebird bio, Inc.:
- 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 |
| 2024-11-14 4:27 pm Sale |
2024-09-30 | 13G | bluebird bio, Inc. BLUE |
Granahan Investment Management LLC | 0 0.000% |
-403,885 (Position Closed) |
Filing |
| 2024-02-14 09:00 am Purchase |
2023-12-31 | 13G | bluebird bio, Inc. BLUE |
Granahan Investment Management LLC | 403,885 7.380% |
403,885 (New Position) |
Filing |