BIOGEN INC. reports

Company Names, identifiers, and filing context for this profile. 1 identity field
Company location
Cambridge, MA
SEC filing record 1 source field available
Fiscal year end
31 December
BIOGEN INC. has filed 2,716 SEC EDGAR filings since 21 May 1996

SEC filing history

Showing 76-100 of 1,000 matching filings.

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25
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4
SCHEDULE 13G/A File 005-42028

SCHEDULE 13G/A filing

Filing date
13 Nov 2025
Reporting date
Not listed
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SCHEDULE 13G File 005-42028

SCHEDULE 13G filing

Filing date
10 Nov 2025
Reporting date
Not listed
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4

PRIMARY DOCUMENT

Filing date
04 Nov 2025
Reporting date
31 Oct 2025
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4

PRIMARY DOCUMENT

Filing date
06 Oct 2025
Reporting date
02 Oct 2025
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4

PRIMARY DOCUMENT

Filing date
02 Sep 2025
Reporting date
29 Aug 2025
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144 File 000-19311

144 filing

Filing date
02 Sep 2025
Reporting date
Not listed
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SCHEDULE 13D/A

SCHEDULE 13D/A filing

Filing date
30 Jul 2025
Reporting date
Not listed
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SCHEDULE 13D/A

SCHEDULE 13D/A filing

Filing date
21 Jul 2025
Reporting date
Not listed
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4

PRIMARY DOCUMENT

Filing date
16 Jul 2025
Reporting date
08 Jul 2025
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144 File 000-19311

144 filing

Filing date
08 Jul 2025
Reporting date
Not listed
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4

PRIMARY DOCUMENT

Filing date
18 Jun 2025
Reporting date
17 Jun 2025
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4

PRIMARY DOCUMENT

Filing date
18 Jun 2025
Reporting date
17 Jun 2025
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4

PRIMARY DOCUMENT

Filing date
18 Jun 2025
Reporting date
17 Jun 2025
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4

PRIMARY DOCUMENT

Filing date
18 Jun 2025
Reporting date
17 Jun 2025
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4

PRIMARY DOCUMENT

Filing date
18 Jun 2025
Reporting date
17 Jun 2025
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4

PRIMARY DOCUMENT

Filing date
18 Jun 2025
Reporting date
17 Jun 2025
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4

PRIMARY DOCUMENT

Filing date
18 Jun 2025
Reporting date
17 Jun 2025
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4

PRIMARY DOCUMENT

Filing date
18 Jun 2025
Reporting date
17 Jun 2025
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