BIOGEN INC.
Biological Products, (No Diagnostic Substances) | SIC: 2836Phone: 6176792000
EIN: 330112644
State Location: MA
State of Inc.: DE
- Nasdaq:BIIB
Form: 10-K
Filing Date: 06 Feb 2026Report Date: 31 Dec 2025
Accepted: 06 Feb 2026 05:36 a.m.
Accession Number: 0000875045-26-000013
File Number: 000-19311
Film Number: 26605101
Documents
Primary Document: 10-K
Accepted: 06 Feb 2026 05:36 a.m.
0000875045-26-000013-index-headers.html
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0000875045-26-000013-index.html
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0000875045-26-000013.txt
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0000875045-26-000013-xbrl.zip
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biib-20251231.xsd
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biib-20251231xex21.htm
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biib-20251231xex23.htm
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biib-20251231xex311.htm
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biib-20251231xex312.htm
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biib-20251231xex321.htm
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biib-20251231_cal.xml
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biib-20251231_def.xml
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biib-20251231_g1.jpg
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biib-20251231_g10.jpg
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biib-20251231_g11.jpg
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biib-20251231_g13.jpg
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biib-20251231_g14.jpg
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biib-20251231_g15.jpg
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biib-20251231_g19.jpg
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biib-20251231_g2.jpg
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