FMR LLC 13D and 13G filings for Biogen 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 |
| 2026-05-06 11:00 am Purchase | 2026-03-31 | 13G | BIOGEN INC BIIB | FMR LLC | 12,807,542 8.700% | 3,394,480 (+36.06%) | Filing |
| 2026-02-05 1:16 pm Purchase | 2025-12-31 | 13G | BIOGEN INC BIIB | FMR LLC | 9,413,062 6.400% | 1,001,699 (+11.91%) | Filing |