Wellington Management Group LLP 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 |
| 2022-09-09 10:26 am Sale |
2022-08-31 | 13G | bluebird bio, Inc. BLUE |
Wellington Management Group LLP | 12,203 0.320% |
-294,797 (-96.03%) |
Filing |
| 2022-02-04 09:15 am Sale |
2021-12-31 | 13G | bluebird bio, Inc. BLUE |
Wellington Management Group LLP | 307,000 8.760% |
-226,873 (-42.50%) |
Filing |
| 2021-03-10 07:17 am Purchase |
2021-02-26 | 13G | bluebird bio, Inc. BLUE |
Wellington Management Group LLP | 533,873 10.300% |
120,918 (+29.28%) |
Filing |
| 2021-01-11 09:10 am Sale |
2020-12-31 | 13G | bluebird bio, Inc. BLUE |
Wellington Management Group LLP | 412,956 8.060% |
-169,797 (-29.14%) |
Filing |