Viskase Holdings, Inc. — SC 13G/A Filings
93 SC 13G/A filings on record
This page lists all SC 13G/A filings submitted to the SEC by Viskase Holdings, Inc. (ENZN), sorted by most recent first. Each row links to the full filing on EdgarLookup. Viskase Holdings, Inc. has filed 93 SC 13G/A documents with the SEC since 2004. To view all SEC filings by Viskase Holdings, Inc., see the full filings list.
All
10-C
10-K
10-K/A
10-Q
10-Q/A
15-12G
25-NSE
3
3/A
4
4/A
424B3
424B4
424B7
425
5
8-A12B
8-A12G
8-A12G/A
8-K
8-K/A
ARS
CORRESP
CT ORDER
DEF 14A
DEFA14A
DEFM14A
DEFR14A
DFAN14A
DRS
EFFECT
NT 10-K
NT 10-Q
POS AM
PRE 14A
PREC14A
PREM14A
PRER14A
PRRN14A
S-1
S-1/A
S-3
S-3/A
S-4
S-4/A
S-8
SC 13D
SC 13D/A
SC 13G
SC 13G/A
SC 14F1
SC TO-C
SC TO-I
SC TO-I/A
SCHEDULE 13D/A
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| SC 13G/A | AMENDMENT NO. 3 TO THE SCHEDULE 13G | 0000921895-20-000931 | Mar 27, 2020 | — |
| SC 13G/A | SC 13G/A | 0001104659-20-005975 | Jan 22, 2020 | — |
| SC 13G/A | SC 13G/A | 0001062993-20-000184 | Jan 16, 2020 | — |
| SC 13G/A | AMENDMENT NO. 2 TO THE SCHEDULE 13G | 0000921895-19-000426 | Feb 14, 2019 | — |
| SC 13G/A | SC 13G/A | 0001144204-19-004131 | Jan 31, 2019 | — |
| SC 13G/A | SC 13G/A | 0001062993-19-000013 | Jan 3, 2019 | — |
| SC 13G/A | AMENDMENT NO. 1 TO SCHEDULE 13G | 0000921895-18-001302 | Apr 13, 2018 | — |
| SC 13G/A | 13G/A | 0001037389-17-000072 | Feb 14, 2017 | — |
| SC 13G/A | — | 0000215457-16-006294 | Jun 9, 2016 | — |
| SC 13G/A | — | 0000935836-16-000729 | Feb 12, 2016 | — |
| SC 13G/A | — | 0000215457-16-002745 | Jan 26, 2016 | — |
| SC 13G/A | — | 0000935836-15-000091 | Feb 6, 2015 | — |
| SC 13G/A | — | 0001086364-15-000471 | Jan 22, 2015 | — |
| SC 13G/A | ENZN13GAMEND6 | 0001061768-14-000026 | Apr 9, 2014 | — |
| SC 13G/A | — | 0000932471-14-003866 | Feb 12, 2014 | — |
| SC 13G/A | — | 0001086364-14-000047 | Jan 10, 2014 | — |
| SC 13G/A | ENZN13GAMEND5.PDML | 0001061768-14-000004 | Jan 9, 2014 | — |
| SC 13G/A | AMENDMENT NO. 1 TO SCHEDULE 13G | 0001193125-13-259858 | Jun 14, 2013 | — |
| SC 13G/A | ENZN13GAMEND4 | 0001061768-13-000014 | Feb 13, 2013 | — |
| SC 13G/A | — | 0001086364-13-003548 | Feb 11, 2013 | — |
| SC 13G/A | — | 0001086364-13-002727 | Feb 6, 2013 | — |
| SC 13G/A | — | 0001033427-13-000012 | Jan 31, 2013 | — |
| SC 13G/A | — | 0001033427-12-000032 | Sep 6, 2012 | — |
| SC 13G/A | ENZON PHARMACEUTICALS SC 13GA 3-31-2012 | 0001140361-12-019887 | Apr 10, 2012 | — |
| SC 13G/A | ENZON PHARMACEUTICALS, INC. | 0000902664-12-000344 | Feb 14, 2012 | — |
| SC 13G/A | ENZON PHARMACEUTICALS SC 13GA 12-31-2011 | 0001140361-12-007948 | Feb 14, 2012 | — |
| SC 13G/A | ENZN13GAMEND3 | 0001061768-12-000014 | Feb 10, 2012 | — |
| SC 13G/A | — | 0001086364-12-000355 | Feb 9, 2012 | — |
| SC 13G/A | — | 0001033427-12-000010 | Feb 6, 2012 | — |
| SC 13G/A | — | 0001011438-11-000102 | Feb 14, 2011 | — |
| SC 13G/A | ENZN13GAMEND2 | 0001061768-11-000012 | Feb 11, 2011 | — |
| SC 13G/A | 13G AMENDMENT | 0001037389-11-000038 | Feb 11, 2011 | — |
| SC 13G/A | ENZON PHARMACEUTICALS, INC. | 0000902664-11-000296 | Feb 10, 2011 | — |
| SC 13G/A | ENZON PHARMACEUTICALS SC 13GA 12-31-2010 | 0001140361-11-006247 | Feb 4, 2011 | — |
| SC 13G/A | — | 0001319244-11-000014 | Feb 4, 2011 | — |
| SC 13G/A | — | 0001086364-11-002837 | Feb 4, 2011 | — |
| SC 13G/A | TERMINATION | 0000948046-10-000056 | Feb 16, 2010 | — |
| SC 13G/A | ENZON PHARMACEUTICALS, INC. | 0000902664-10-000549 | Feb 12, 2010 | — |
| SC 13G/A | 13G/A | 0001037389-10-000198 | Feb 12, 2010 | — |
| SC 13G/A | ENZN13GAMEND1 | 0001061768-10-000022 | Feb 12, 2010 | — |
| SC 13G/A | SC 13G/A | 0000950123-10-011375 | Feb 11, 2010 | — |
| SC 13G/A | AMENDMENT 2 TO FORM 13G | 0000728889-10-000290 | Feb 2, 2010 | — |
| SC 13G/A | AMENDMENT NO. 1 | 0001140361-10-002165 | Jan 20, 2010 | — |
| SC 13G/A | — | 0001037389-09-000269 | Feb 13, 2009 | — |
| SC 13G/A | — | 0001144204-09-007824 | Feb 13, 2009 | — |
| SC 13G/A | ENZON PHARMACEUTICALS, INC. | 0000902664-09-000653 | Feb 12, 2009 | — |
| SC 13G/A | — | 0001033427-09-000026 | Feb 4, 2009 | — |
| SC 13G/A | AMENDMENT 1 TO SCHEDULE 13G | 0000728889-09-000117 | Jan 26, 2009 | — |
| SC 13G/A | — | 0001011438-08-000373 | Jun 9, 2008 | — |
| SC 13G/A | 2-11-08 AMENDMENT | 0000932471-08-000575 | Feb 14, 2008 | — |