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BIOGEN INC. — 425 Filings

20 425 filings on record

This page lists all 425 filings submitted to the SEC by BIOGEN INC. (BIIB), sorted by most recent first. Each row links to the full filing on EdgarLookup. BIOGEN INC. has filed 20 425 documents with the SEC since 2014. To view all SEC filings by BIOGEN INC., see the full filings list.

Overview All Filings Financials Insiders
All 10-C 10-K 10-K/A 10-K405 10-K405/A 10-Q 10-Q/A 11-K 144 3 3/A 4 4/A 424B2 424B3 424B4 425 5 8-A12B 8-A12G/A 8-B12G 8-K 8-K/A ARS CORRESP CT ORDER DEF 14A DEFA14A DEFC14A DEFR14A DFAN14A DFRN14A EFFECT FWP NO ACT NT 10-K NT 10-Q POS AM POS EX PRE 14A PREC14A PRER14A PRES14A PRRN14A PX14A6G RW S-3 S-3/A S-3ASR S-3MEF S-4 S-4/A S-8 S-8 POS SC 13D SC 13D/A SC 13G SC 13G/A SC TO-C SC TO-I SC TO-I/A SC TO-T SC TO-T/A SCHEDULE 13D SCHEDULE 13D/A SCHEDULE 13G SCHEDULE 13G/A UPLOAD
Form Description Accession Number Filed Period
425 BIOGEN INC. 0000950135-03-005361 Oct 29, 2003
425 BIOGEN, INC. 0000950135-03-005338 Oct 28, 2003
425 BIOGEN, INC. 0000950135-03-005328 Oct 27, 2003
425 425 0001047469-03-031511 Sep 24, 2003
425 FORM 425 0001047469-03-029752 Sep 4, 2003
425 425 0001047469-03-028498 Aug 21, 2003
425 425 0001047469-03-028292 Aug 19, 2003
425 425 0001047469-03-026341 Aug 5, 2003
425 425 0001047469-03-025160 Jul 25, 2003
425 FORM 425 0001047469-03-024448 Jul 17, 2003
425 FORM 425 0001047469-03-024433 Jul 17, 2003
425 FORM 425 0001047469-03-023664 Jul 9, 2003
425 425 0001047469-03-023480 Jul 7, 2003
425 FORM 425 0001047469-03-023340 Jul 3, 2003
425 425 0001047469-03-022040 Jun 24, 2003
425 425 0001047469-03-022012 Jun 23, 2003
425 425 0001047469-03-021990 Jun 23, 2003
425 425 0001047469-03-021987 Jun 23, 2003
425 425 0001047469-03-021970 Jun 23, 2003
425 425 0001047469-03-021969 Jun 23, 2003