# Filing Detail

Form 10-Q - Quarterly report [Sections 13 or 15(d)]:
SEC Accession No. 0000875045-25-000033
Filing Date
2025-07-31
Accepted
2025-07-31 06:05:42
Documents
145
Period of Report
2025-06-30

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | 10-Q | biib-20250630.htm iXBRL | 10-Q | 2978931
2 | EX-10.1 | exhibit101-priyasinghalemp.htm | EX-10.1 | 13879
3 | EX-31.1 | biib-2025630xex311.htm | EX-31.1 | 11232
4 | EX-31.2 | biib-2025630xex312.htm | EX-31.2 | 10659
5 | EX-32.1 | biib-2025630xex321.htm | EX-32.1 | 9295
11 |  | biib-20250630_g1.jpg | GRAPHIC | 62626
12 |  | biib-20250630_g10.jpg | GRAPHIC | 79462
13 |  | biib-20250630_g11.jpg | GRAPHIC | 92290
14 |  | biib-20250630_g12.jpg | GRAPHIC | 101395
15 |  | biib-20250630_g2.jpg | GRAPHIC | 16188
16 |  | biib-20250630_g3.jpg | GRAPHIC | 13701
17 |  | biib-20250630_g4.jpg | GRAPHIC | 17542
18 |  | biib-20250630_g5.jpg | GRAPHIC | 15412
19 |  | biib-20250630_g6.jpg | GRAPHIC | 44432
20 |  | biib-20250630_g7.jpg | GRAPHIC | 44896
21 |  | biib-20250630_g8.jpg | GRAPHIC | 70528
22 |  | biib-20250630_g9.jpg | GRAPHIC | 67822
23 |  | newbiogenlogo.jpg | GRAPHIC | 2811
| Complete submission text file | 0000875045-25-000033.txt |  | 16860674

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
6 | XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT | biib-20250630.xsd | EX-101.SCH | 108252
7 | XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT | biib-20250630_cal.xml | EX-101.CAL | 85351
8 | XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT | biib-20250630_def.xml | EX-101.DEF | 651200
9 | XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT | biib-20250630_lab.xml | EX-101.LAB | 1010815
10 | XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT | biib-20250630_pre.xml | EX-101.PRE | 859826
148 | EXTRACTED XBRL INSTANCE DOCUMENT | biib-20250630_htm.xml | XML | 2921483

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: 10-Q | Act: 34 | File No.: 000-19311 | Film No.: 251169142
SIC: 2836 Biological Products, (No Diagnostic Substances)
(CF Office: 03 Life Sciences)