BIOGEN INC. reports

Company location: Cambridge, MA
Fiscal year end: 31 December

BIOGEN INC. has filed 2,708 SEC EDGAR filings since 21 May 1996

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SEC filing history

Showing 176-200 of 1,000 matching filings.

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25

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8

PRE 14A File 000-19311

PRE 14A

Filing date: 12 Apr 2024
Reporting date: 20 Jun 2024
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 03 Apr 2024
Reporting date: 02 Apr 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 03 Apr 2024
Reporting date: 01 Apr 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

144 File 000-19311

144 filing

Filing date: 02 Apr 2024
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 26 Feb 2024
Reporting date: 22 Feb 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

144 File 000-19311

144 filing

Filing date: 22 Feb 2024
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 21 Feb 2024
Reporting date: 16 Feb 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 21 Feb 2024
Reporting date: 16 Feb 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 21 Feb 2024
Reporting date: 16 Feb 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 21 Feb 2024
Reporting date: 16 Feb 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 21 Feb 2024
Reporting date: 16 Feb 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 21 Feb 2024
Reporting date: 16 Feb 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 21 Feb 2024
Reporting date: 16 Feb 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

144 File 000-19311

144 filing

Filing date: 21 Feb 2024
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 20 Feb 2024
Reporting date: 15 Feb 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

10-K File 000-19311

10-K

Filing date: 14 Feb 2024
Reporting date: 31 Dec 2023
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 13 Feb 2024
Reporting date: 09 Feb 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 13 Feb 2024
Reporting date: 09 Feb 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 13 Feb 2024
Reporting date: 09 Feb 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 13 Feb 2024
Reporting date: 09 Feb 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 13 Feb 2024
Reporting date: 09 Feb 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 13 Feb 2024
Reporting date: 09 Feb 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 13 Feb 2024
Reporting date: 09 Feb 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 000-19311

8-K

Filing date: 13 Feb 2024
Reporting date: 13 Feb 2024
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

SC 13G/A

SC 13G/A

Filing date: 12 Feb 2024
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

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