First Trust Portfolios L.P. 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 |
| 2023-02-03 10:16 am Sale | 2022-12-31 | 13G | bluebird bio, Inc. BLUE | First Trust Portfolios L.P. | 0 0.000% | -260,241 (Position Closed) | Filing |
| 2022-01-26 09:44 am Purchase | 2021-12-31 | 13G | bluebird bio, Inc. BLUE | First Trust Portfolios L.P. | 260,241 7.420% | 260,241 (New Position) | Filing |