BIOGEN INC. — 424B3 Filings
16 424B3 filings on record
This page lists all 424B3 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 16 424B3 documents with the SEC since 2014. To view all SEC filings by BIOGEN INC., see the full filings list.
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 |
|---|---|---|---|---|
| 424B3 | 424B3 | 0001193125-22-161072 | May 26, 2022 | — |
| 424B3 | 424B3 | 0001047469-04-016863 | May 11, 2004 | — |
| 424B3 | 424B3 | 0001047469-03-032662 | Oct 6, 2003 | — |
| 424B3 | 424B3 | 0001047469-03-002683 | Jan 27, 2003 | — |
| 424B3 | 424B3 | 0000912057-02-041273 | Nov 7, 2002 | — |
| 424B3 | 424B3 | 0000912057-02-033314 | Aug 23, 2002 | — |
| 424B3 | 424B3 | 0000912057-02-029682 | Aug 2, 2002 | — |
| 424B3 | 424B3 | 0000912057-02-028237 | Jul 23, 2002 | — |
| 424B3 | 424B3 | 0000912057-02-027609 | Jul 17, 2002 | — |
| 424B3 | 424B3 | 0000912057-02-026909 | Jul 10, 2002 | — |
| 424B3 | 424B3 | 0000912057-00-046774 | Nov 1, 2000 | — |
| 424B3 | FORM 424B3 | 0000912057-00-030865 | Jul 5, 2000 | — |
| 424B3 | FORM 424B3 | 0001095811-00-001135 | Apr 26, 2000 | — |
| 424B3 | PROSPECTUS SUPPLEMENT | 0001095811-00-000233 | Feb 11, 2000 | — |
| 424B3 | PROSPECTUS SUPPLEMENT | 0000936392-99-001438 | Dec 15, 1999 | — |
| 424B3 | 424(B)(3) FINAL PROSPECTUS | 0000936392-99-001370 | Nov 19, 1999 | — |