Schedule 13G ownership disclosure
BIOGEN INC COM
COMMON STOCK · CUSIP: 09062X103
Event date: 2025-12-31
Reporting persons may disclose overlapping interests. Their amounts are shown individually and are not added into a filing total.
- Filing-level shares
- Unavailable
- Percent of class
- Unavailable
- FMR LLC
Shares: 9,413,062.03 · Class: 6.4%
- Abigail P. Johnson
Shares: 9,413,062.03 · Class: 6.4%
Amounts are as disclosed in this filing. Schedule type alone does not establish investment intent.
Source: SEC EDGAR filingFiling metadata
- Accession number
- 0000315066-26-000383
- Form type
- SCHEDULE 13G
- Filer
- BIOGEN INC.
- CIK
- CIK 875045
- Filed
- Feb 05, 2026
- Reporting period
- Dec 31, 2025
- Description
- Schedule 13G beneficial ownership