Form DEF 14A - Other definitive proxy statements:
SEC Accession No. 0001193125-23-127639
Filing Date
2023-04-28
Accepted
2023-04-28 17:20:25
Documents
76

Document Format Files

Seq Description Document Type Size
1 DEF 14A d422936ddef14a.htm   iXBRL DEF 14A 2487684
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  Complete submission text file 0001193125-23-127639.txt   11838619

Data Files

Seq Description Document Type Size
2 XBRL TAXONOMY EXTENSION SCHEMA biib-20221231.xsd EX-101.SCH 4983
3 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE biib-20221231_def.xml EX-101.DEF 5142
4 XBRL TAXONOMY EXTENSION LABEL LINKBASE biib-20221231_lab.xml EX-101.LAB 6553
5 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE biib-20221231_pre.xml EX-101.PRE 4286
70 EXTRACTED XBRL INSTANCE DOCUMENT d422936ddef14a_htm.xml XML 194343
Mailing Address 225 BINNEY STREET CAMBRIDGE MA 02142
Business Address 225 BINNEY STREET CAMBRIDGE MA 02142 7814642000
BIOGEN INC. (Filer) CIK: 0000875045 (see all company filings)

EIN.: 330112644 | State of Incorp.: DE | Fiscal Year End: 1231
Type: DEF 14A | Act: 34 | File No.: 000-19311 | Film No.: 23868392
SIC: 2836 Biological Products, (No Diagnostic Substances)