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 |