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Form 3 - Initial statement of beneficial ownership of securities:
SEC Accession No. 0001127602-23-019544
Filing Date
2023-06-28
Accepted
2023-06-28 19:03:18
Documents
2
Period of Report
2023-06-26

Document Format Files

Seq Description Document Type Size
1 PRIMARY DOCUMENT form3.html 3  
1 PRIMARY DOCUMENT form3.xml 3 2019
2 POWER OF ATTORNEY (PUBLIC): POWER OF ATTORNEY doc1.txt EX-24 4030
  Complete submission text file 0001127602-23-019544.txt   7666
Mailing Address 225 BINNEY STREET CAMBRIDGE MA 02142
Business Address 225 BINNEY STREET CAMBRIDGE MA 02142 7814642000
BIOGEN INC. (Issuer) CIK: 0000875045 (see all company filings)

IRS No.: 330112644 | State of Incorp.: DE | Fiscal Year End: 1231
SIC: 2836 Biological Products, (No Diagnostic Substances)

Mailing Address BIOGEN INC. 225 BINNEY STREET CAMBRIDGE MA 02142
Business Address
LANGER SUSAN (Reporting) CIK: 0001982640 (see all company filings)

Type: 3 | Act: 34 | File No.: 000-19311 | Film No.: 231053844