Form FWP - Filing under Securities Act Rules 163/433 of free writing prospectuses:
SEC Accession No. 0001193125-25-113926
Filing Date
2025-05-06
Accepted
2025-05-06 17:26:23
Documents
1

Document Format Files

Seq Description Document Type Size
1 FWP d905655dfwp.htm FWP 24585
  Complete submission text file 0001193125-25-113926.txt   26744
Mailing Address 225 BINNEY STREET CAMBRIDGE MA 02142
Business Address 225 BINNEY STREET CAMBRIDGE MA 02142 7814642000
BIOGEN INC. (Filed by) CIK: 0000875045 (see all company filings)

EIN.: 330112644 | State of Incorp.: DE | Fiscal Year End: 1231
Type: FWP
SIC: 2836 Biological Products, (No Diagnostic Substances)
(CF Office: 03 Life Sciences)

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: FWP | Act: 34 | File No.: 333-286915 | Film No.: 25918489
SIC: 2836 Biological Products, (No Diagnostic Substances)
(CF Office: 03 Life Sciences)