BlackRock, Inc. 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 |
| 2024-11-08 2:17 pm Unchanged |
2024-09-30 | 13G | bluebird bio, Inc. BLUE |
BlackRock Inc. BLK |
772,188 8.000% |
0 (Unchanged) |
Filing |
| 2024-10-22 3:24 pm Purchase |
2024-09-30 | 13G | bluebird bio, Inc. BLUE |
BlackRock Inc. BLK |
772,188 8.000% |
323,038 (+71.92%) |
Filing |
| 2024-01-08 4:35 pm Purchase |
2023-12-31 | 13G | bluebird bio, Inc. BLUE |
BlackRock Inc. BLK |
449,150 4.700% |
80,791 (+21.93%) |
Filing |
| 2023-01-25 10:36 am Purchase |
2022-12-31 | 13G | bluebird bio, Inc. BLUE |
BlackRock Inc. BLK |
368,359 8.900% |
72,759 (+24.61%) |
Filing |
| 2022-02-02 7:11 pm Sale |
2021-12-31 | 13G | bluebird bio, Inc. BLUE |
BlackRock Inc. BLK |
295,600 8.400% |
-2,519 (-0.85%) |
Filing |
| 2021-01-28 5:55 pm Purchase |
2020-12-31 | 13G | bluebird bio, Inc. BLUE |
BlackRock Inc. BLK |
298,119 5.800% |
72,283 (+32.01%) |
Filing |