SC 13D/AThe Stakes
BIOGEN INC. files SC 13D/A
Filed May 14, 2026 · 1mo ago · Accession 0000950157-26-000611
Plain English
Activist stake — an investor has acquired more than 5% with intent to influence.
Read the source below for the full document.
Filing details
- Company
- BIOGEN INC.
- Ticker
- BIIB
- CIK
- 875045
- Form type
- SC 13D/A
- Filing date
- May 14, 2026
- Report date
- —
- Document
- —
- Size
- —