$BIIB SEC Filings

Filing Filed On
PRE 14A 12 Apr 2024
PRE 14A 09 Apr 2021
PRELIMINARY PROXY STATEMENT 26 Mar 2012
PRE 14A 18 Mar 2011
BIOGEN IDEC INC. 18 Apr 2008
PRE 14A 23 Mar 2001
PRELIMINARY PROXY STATEMENT 08 Apr 1997