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BIOGEN INC. — S-3ASR Filings

4 S-3ASR filings on record

This page lists all S-3ASR 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 4 S-3ASR 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
S-3ASR S-3ASR 0001193125-25-110133 May 1, 2025
S-3ASR S-3ASR 0001193125-20-118235 Apr 24, 2020
S-3ASR S-3ASR 0001193125-15-313652 Sep 8, 2015
S-3ASR BIOGEN IDEC INC. 0000950135-08-001194 Feb 26, 2008