Form 5 - Annual statement of changes in beneficial ownership of securities:
SEC Accession No. 0001127602-21-004680
Filing Date
2021-02-09
Accepted
2021-02-09 16:15:55
Documents
1
Period of Report
2020-12-31

Document Format Files

Seq Description Document Type Size
1 PRIMARY DOCUMENT form5.html 5  
1 PRIMARY DOCUMENT form5.xml 5 2885
  Complete submission text file 0001127602-21-004680.txt   4480
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)

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

Mailing Address 14 CAMBRIDGE CENTER CAMBRIDGE MA 02142
Business Address
Posner Brian S (Reporting) CIK: 0001372455 (see all company filings)

Type: 5 | Act: 34 | File No.: 000-19311 | Film No.: 21606570