Form SCHEDULE 13G - Statement of Beneficial Ownership by Certain Investors:
SEC Accession No. 0002100119-26-000210
Filing Date
2026-04-29
Accepted
2026-04-29 17:00:47
Documents
1
X0202

Document Format Files

Seq Description Document Type Size
1 primary_doc.html SCHEDULE 13G  
1 primary_doc.xml SCHEDULE 13G 5621
  Complete submission text file 0002100119-26-000210.txt   7584
Mailing Address 225 BINNEY STREET CAMBRIDGE MA 02142
Business Address 225 BINNEY STREET CAMBRIDGE MA 02142 7814642000
BIOGEN INC. (Subject) CIK: 0000875045 (see all company filings)

EIN.: 330112644 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SCHEDULE 13G | Act: 34 | File No.: 005-42028 | Film No.: 26917631
SIC: 2836 Biological Products, (No Diagnostic Substances)
(CF Office: 03 Life Sciences)

Mailing Address 100 VANGUARD BLVD MALVERN PA 19355
Business Address 100 VANGUARD BLVD MALVERN PA 19355 610-669-6148
VANGUARD CAPITAL MANAGEMENT LLC (Filed by) CIK: 0002100119 (see all company filings)

EIN.: 392877419 | State of Incorp.: PA | Fiscal Year End: 1231
LEI: 529900ZEWTRLEJ6XE960
Type: SCHEDULE 13G