BIOGEN INC. — 424B4 Filings

2 424B4 filings on record

This page lists all 424B4 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 2 424B4 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
424B4	IDEC PHARMACEUTICALS CORP -- FINAL PROSPECTUS	0000936392-96-000848	Oct 8, 1996	—
424B4	FINAL PROSPECTUS DATED JUNE 6, 1996	0000936392-96-000318	Jun 10, 1996	—