Biogen | SEC Filings

Filing date	Description	Form	View
Feb 22, 2024	Filed by "insiders" prior intended sale of restricted stock. Non-EDGAR filing	144	0001959173-24-001258.pdf 0001959173-24-001258.rtf 0001959173-24-001258.xls View HTML
Apr 02, 2024	Filed by "insiders" prior intended sale of restricted stock. Non-EDGAR filing	144	0001959173-24-002718.pdf 0001959173-24-002718.rtf 0001959173-24-002718.xls View HTML
May 26, 2022	EFFECT	EFFECT	9999999995-22-001606.pdf 9999999995-22-001606.rtf 9999999995-22-001606.xls View HTML
Jul 12, 2022	EFFECT	EFFECT	9999999995-22-002032.pdf 9999999995-22-002032.rtf 9999999995-22-002032.xls View HTML
Jun 13, 2023	DEFR14A	DEFR14A	0001193125-23-165722.pdf 0001193125-23-165722.rtf 0001193125-23-165722.xls View HTML
May 16, 2008	Definitive proxy statement in connection with contested solicitations	DEFC14A	0000928475-08-000185.pdf 0000928475-08-000185.rtf View HTML
Apr 27, 2009	Definitive proxy statement in connection with contested solicitations	DEFC14A	0000950135-09-003147.pdf 0000950135-09-003147.rtf 0000950135-09-003147.xls View HTML
May 15, 2009	Definitive proxy statement in connection with contested solicitations	DEFC14A	0001193125-09-112847.pdf 0001193125-09-112847.rtf 0001193125-09-112847.xls View HTML
May 08, 2008	Definitive proxy statement in connection with contested solicitations	DEFC14A	0000950135-08-003542.pdf 0000950135-08-003542.rtf 0000950135-08-003542.xls View HTML
Mar 15, 2011	CT ORDER	CT ORDER	9999999997-11-003711.pdf View HTML

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SEC Filings