Biogen Inc. 13D and 13G filings for Apellis Pharmaceuticals, 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 |
| 2026-05-14 4:36 pm Sale | 2026-05-14 | 13D | APELLIS PHARMACEUTICALS INC CO APLS | BIOGEN INC. BIIB | 0 0.000% | -18,469,475 (Position Closed) | Filing |
| 2026-04-06 6:08 pm Purchase | 2026-03-31 | 13D | APELLIS PHARMACEUTICALS INC CO APLS | BIOGEN INC. BIIB | 18,469,475 14.200% | 18,469,475 (New Position) | Filing |