BIOGEN INC. — 8-K/A Filings
8 8-K/A filings on record
This page lists all 8-K/A 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 8 8-K/A 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 |
|---|---|---|---|---|
| 8-K/A | 8-K/A | 0001193125-23-245816 | Sep 28, 2023 | Jun 26, 2023 |
| 8-K/A | 8-K/A | 0000875045-22-000023 | Jul 20, 2022 | — |
| 8-K/A | 8-K/A | 0000875045-13-000010 | Feb 12, 2013 | Feb 5, 2013 |
| 8-K/A | FORM 8-K AMENDMENT | 0001193125-12-311737 | Jul 24, 2012 | — |
| 8-K/A | 8-K/A | 0000950123-11-007759 | Feb 1, 2011 | — |
| 8-K/A | BIOGEN IDEC, INC. | 0000950135-04-000081 | Jan 12, 2004 | Nov 12, 2003 |
| 8-K/A | BIOGEN IDEC, INC. | 0000950135-03-005838 | Nov 25, 2003 | Nov 17, 2003 |
| 8-K/A | 8-K/A | 0001047469-03-032449 | Oct 3, 2003 | Jun 19, 2003 |