# Filing Detail

Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material:
SEC Accession No. 0000875045-21-000020
Filing Date
2021-04-09
Accepted
2021-04-09 16:35:58
Documents
3

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | DEFA14A | defa14a-pressreleasefornew.htm | DEFA14A | 42738
2 |  | biogenlogostandarda291.jpg | GRAPHIC | 756402
3 |  | picture21.jpg | GRAPHIC | 12959
| Complete submission text file | 0000875045-21-000020.txt |  | 1082989

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: DEFA14A | Act: 34 | File No.: 000-19311 | Film No.: 21818236
SIC: 2836 Biological Products, (No Diagnostic Substances)