IONIS PHARMACEUTICALS INC — 8-K/A Filings
18 8-K/A filings on record
This page lists all 8-K/A filings submitted to the SEC by IONIS PHARMACEUTICALS INC (IONS), sorted by most recent first. Each row links to the full filing on EdgarLookup. IONIS PHARMACEUTICALS INC has filed 18 8-K/A documents with the SEC since 2019. To view all SEC filings by IONIS PHARMACEUTICALS INC, see the full filings list.
All
10-K
10-K/A
10-K405
10-K405/A
10-Q
10-Q/A
144
144/A
3
3/A
4
4/A
424B2
424B3
424B4
424B5
424B7
5
8-K
8-K/A
ARS
CORRESP
CT ORDER
D
DEF 14A
DEFA14A
EFFECT
FWP
NO ACT
POS AM
PRE 14A
REGDEX
S-3
S-3/A
S-3ASR
S-8
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 13G
SCHEDULE 13G/A
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| 8-K/A | 8-K/A | 0001140361-25-040220 | Nov 3, 2025 | Oct 28, 2025 |
| 8-K/A | 8-K/A | 0001104659-13-052324 | Jun 28, 2013 | Nov 15, 2008 |
| 8-K/A | 8-K/A | 0001104659-12-046674 | Jun 28, 2012 | Oct 15, 2008 |
| 8-K/A | 8-K/A | 0001104659-11-035614 | Jun 20, 2011 | Oct 15, 2008 |
| 8-K/A | 8-K/A | 0001104659-10-035031 | Jun 23, 2010 | Oct 15, 2008 |
| 8-K/A | 8-K | 0001104659-09-057623 | Oct 2, 2009 | Oct 15, 2008 |
| 8-K/A | 8-K/A | 0001104659-09-021011 | Mar 30, 2009 | Oct 15, 2008 |
| 8-K/A | 8-K/A | 0001104659-09-001842 | Jan 12, 2009 | Jan 30, 2008 |
| 8-K/A | 8-K/A | 0001104659-08-076902 | Dec 17, 2008 | Jan 30, 2008 |
| 8-K/A | 8-K/A | 0001104659-08-007654 | Feb 6, 2008 | Jan 7, 2008 |
| 8-K/A | 8-K/A | 0001104659-07-087761 | Dec 7, 2007 | Sep 28, 2007 |
| 8-K/A | 8-K/A | 0001104659-07-072559 | Oct 2, 2007 | Sep 13, 2007 |
| 8-K/A | AMENDMENT TO FORM 8-K | 0001104659-06-074272 | Nov 13, 2006 | — |
| 8-K/A | 8-K/A | 0001104659-05-020629 | May 5, 2005 | — |
| 8-K/A | 8-K/A | 0001104659-05-008760 | Mar 1, 2005 | — |
| 8-K/A | 8-K/A | 0000912057-01-534605 | Oct 5, 2001 | Jan 14, 2001 |
| 8-K/A | 8-K/A | 0000936392-99-000714 | Jun 16, 1999 | Apr 20, 1999 |
| 8-K/A | FORM 8-K/A | 0000936392-99-000679 | Jun 8, 1999 | Apr 20, 1999 |