Biogen | SEC Filings

Filing date	Description	Form	View
Mar 17, 2005	Notification that form 10-K will be submitted late	NT 10-K	0000950135-05-001521.pdf 0000950135-05-001521.rtf View HTML
Aug 10, 2006	Notification that form type 10-Q will be submitted late	NT 10-Q	0000950135-06-004927.pdf 0000950135-06-004927.rtf 0000950135-06-004927.xls View HTML
Dec 19, 2002	Post-effective amendment to an S-Type filing	POS AM	0001047469-02-007540.pdf 0001047469-02-007540.rtf 0001047469-02-007540.xls View HTML
Jul 06, 2022	Post-effective amendment to an S-Type filing	POS AM	0001193125-22-188568.pdf 0001193125-22-188568.rtf 0001193125-22-188568.xls View HTML
Nov 12, 2003	POS EX	POS EX	0001047469-03-036959.pdf 0001047469-03-036959.rtf View HTML
Apr 18, 2008	A preliminary proxy statement providing notification matters to be brought to a vote	PRE 14A	0000950135-08-002596.pdf 0000950135-08-002596.rtf 0000950135-08-002596.xls View HTML
Mar 23, 2001	A preliminary proxy statement providing notification matters to be brought to a vote	PRE 14A	0000912057-01-008023.pdf 0000912057-01-008023.rtf 0000912057-01-008023.xls View HTML
Apr 08, 1997	A preliminary proxy statement providing notification matters to be brought to a vote	PRE 14A	0000891618-97-001644.pdf 0000891618-97-001644.rtf View HTML
Mar 18, 2011	A preliminary proxy statement providing notification matters to be brought to a vote	PRE 14A	0000950123-11-026846.pdf 0000950123-11-026846.rtf 0000950123-11-026846.xls View HTML
Mar 26, 2012	A preliminary proxy statement providing notification matters to be brought to a vote	PRE 14A	0001193125-12-131635.pdf 0001193125-12-131635.rtf 0001193125-12-131635.xls View HTML

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