SIGA TECHNOLOGIES INC — SC 13D/A Filings
31 SC 13D/A filings on record
This page lists all SC 13D/A filings submitted to the SEC by SIGA TECHNOLOGIES INC (SIGA), sorted by most recent first. Each row links to the full filing on EdgarLookup. SIGA TECHNOLOGIES INC has filed 31 SC 13D/A documents with the SEC since 2002. To view all SEC filings by SIGA TECHNOLOGIES INC, see the full filings list.
All
10-K
10-K/A
10-Q
10-Q/A
10KSB
10KSB/A
10KSB40
10KSB40/A
10QSB
10QSB/A
25-NSE
3
4
4/A
424B1
424B2
424B3
8-A12B
8-A12G
8-K
8-K/A
ARS
CERT
CORRESP
CT ORDER
DEF 14A
DEFA14A
EFFECT
FWP
NT 10-K
NT 10-Q
POS AM
PRE 14A
PREM14A
PRER14A
S-1
S-1/A
S-3
S-3/A
S-8
SB-2
SB-2/A
SB-2MEF
SC 13D
SC 13D/A
SC 13G
SC 13G/A
SC 14F1
SCHEDULE 13G/A
SEC STAFF LETTER
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| SC 13D/A | — | 0001013594-21-000823 | Nov 22, 2021 | — |
| SC 13D/A | SC 13D/A | 0001140361-21-031663 | Sep 17, 2021 | — |
| SC 13D/A | — | 0001013594-21-000676 | Aug 17, 2021 | — |
| SC 13D/A | — | 0001013594-20-000489 | May 14, 2020 | — |
| SC 13D/A | — | 0001013594-20-000199 | Feb 25, 2020 | — |
| SC 13D/A | AMENDMENT NO. 1 TO THE SCHEDULE 13D | 0001013594-20-000149 | Feb 13, 2020 | — |
| SC 13D/A | SC 13D/A | 0001567619-16-003230 | Nov 18, 2016 | — |
| SC 13D/A | SC 13D/A | 0001567619-16-003063 | Oct 17, 2016 | — |
| SC 13D/A | SC 13D/A, AMENDMENT NO. 12 | 0001341004-14-000982 | Nov 12, 2014 | — |
| SC 13D/A | SCHEDULE 13D/A | 0001341004-12-000790 | May 17, 2012 | — |
| SC 13D/A | — | 0001341004-10-001269 | Jul 28, 2010 | — |
| SC 13D/A | SCHEDULE 13D/A | 0001341004-10-001063 | Jun 22, 2010 | — |
| SC 13D/A | SCHEDULE 13D/A | 0001341004-09-002000 | Oct 2, 2009 | — |
| SC 13D/A | SC 13D/A | 0001341004-09-001939 | Sep 21, 2009 | — |
| SC 13D/A | SCHEDULE 13D, AMENDMENT NO. 6 | 0001341004-09-001692 | Aug 3, 2009 | — |
| SC 13D/A | SCHEDULE 13D, AMEND. NO. 5 | 0001341004-09-000902 | May 4, 2009 | — |
| SC 13D/A | — | 0001341004-08-001486 | Jun 25, 2008 | — |
| SC 13D/A | AMENDMENT NO. 3 | 0001341004-07-003100 | Dec 6, 2007 | — |
| SC 13D/A | SC 13D - AMENDMENT NO. 2 | 0000950172-04-000057 | Jan 9, 2004 | — |
| SC 13D/A | SC 13D/A #1 | 0000950172-03-003044 | Oct 15, 2003 | — |
| SC 13D/A | SCHEDULE 13D AMENDMENT NO. 5 | 0000922423-03-000795 | Jul 11, 2003 | — |
| SC 13D/A | FORM 13D/A | 0000891554-02-000441 | Feb 6, 2002 | — |
| SC 13D/A | SCHEDULE 13D AMENDMENT NO. 4 | 0000922423-01-500841 | Oct 3, 2001 | — |
| SC 13D/A | SCHEDULE 13D AMENDMENT NO. 3 | 0000922423-01-500416 | Jun 21, 2001 | — |
| SC 13D/A | SCHEDULE 13D AMENDMENT | 0000922423-01-500300 | Jun 4, 2001 | — |
| SC 13D/A | SCHEDULE 13D/A | 0000922423-01-500199 | May 14, 2001 | — |
| SC 13D/A | AMENDMENT NO. 1 | 0000891554-00-000096 | Jan 14, 2000 | — |
| SC 13D/A | AMENDMENT NO. 4 | 0000891554-99-000747 | Apr 15, 1999 | — |
| SC 13D/A | AMENDMENT NO. 3 | 0000891554-99-000535 | Mar 18, 1999 | — |
| SC 13D/A | AMENDMENT NO. 2 | 0000891554-99-000435 | Feb 26, 1999 | — |
| SC 13D/A | SCHEDULE 13D | 0000891554-99-000026 | Jan 11, 1999 | — |