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. 1 TO SCHEDULE 13G | 0001193805-08-000458 | Feb 13, 2008 | — |
| SC 13G/A | — | 0001144204-08-008479 | Feb 13, 2008 | — |
| SC 13G/A | — | 0001033427-08-000029 | Feb 4, 2008 | — |
| SC 13G/A | — | 0001011438-08-000005 | Jan 10, 2008 | — |
| SC 13G/A | SC 13G/A | 0001047469-07-008904 | Nov 9, 2007 | — |
| SC 13G/A | ENZON PHARMACEUTICALS, INC. | 0000902664-07-000970 | Feb 14, 2007 | — |
| SC 13G/A | — | 0001056829-07-000045 | Feb 13, 2007 | — |
| SC 13G/A | — | 0001144204-07-007102 | Feb 13, 2007 | — |
| SC 13G/A | — | 0001011438-07-000031 | Jan 10, 2007 | — |
| SC 13G/A | SCHEDULE 13G HOLDINGS REPORT AMENDMENT | 0001172661-06-000284 | Aug 7, 2006 | — |
| SC 13G/A | FORM 13G HOLDINGS REPORT | 0001172661-06-000028 | Feb 2, 2006 | — |
| SC 13G/A | DOC ONE | 0000315066-05-002444 | Sep 12, 2005 | — |
| SC 13G/A | FORM 13G HOLDINGS REPORT | 0001172661-05-000084 | Feb 14, 2005 | — |
| SC 13G/A | — | 0000064782-05-000042 | Feb 10, 2005 | — |
| SC 13G/A | ENZON PHARMACEUTICALS, INC. | 0000891804-05-000452 | Feb 9, 2005 | — |
| SC 13G/A | AMENDMENT NO. 2 | 0000947871-04-000503 | Feb 19, 2004 | — |
| SC 13G/A | AMENDMENT NO. 2 | 0000947871-04-000430 | Feb 18, 2004 | — |
| SC 13G/A | AMENDMENT NO. 2 | 0000947871-04-000434 | Feb 18, 2004 | — |
| SC 13G/A | AMENDMENT NO. 2 | 0000947871-04-000432 | Feb 18, 2004 | — |
| SC 13G/A | SCHEDULE 13G/A | 0001047469-03-023781 | Jul 10, 2003 | — |
| SC 13G/A | — | 0000766524-03-000011 | Feb 14, 2003 | — |
| SC 13G/A | ENZON INC. / SC 13G/A | 0000902664-03-000336 | Feb 14, 2003 | — |
| SC 13G/A | DOC ONE | 0000315066-03-001542 | Feb 13, 2003 | — |
| SC 13G/A | SCHEDULE 13G/A | 0000947871-03-000352 | Feb 10, 2003 | — |
| SC 13G/A | SCHEDULE 13G/A | 0000947871-03-000351 | Feb 10, 2003 | — |
| SC 13G/A | SCHEDULE 13G/A | 0000947871-03-000350 | Feb 10, 2003 | — |
| SC 13G/A | — | 0000812295-02-000178 | Nov 8, 2002 | — |
| SC 13G/A | — | 0000812295-02-000173 | Sep 9, 2002 | — |
| SC 13G/A | — | 0000766524-02-000063 | Feb 13, 2002 | — |
| SC 13G/A | — | 0000812295-02-000088 | Feb 13, 2002 | — |
| SC 13G/A | — | 0000812295-01-000094 | Feb 15, 2001 | — |
| SC 13G/A | AMENDMENT NO. 1 TO SCHEDULE 13G | 0001005477-01-000970 | Feb 14, 2001 | — |
| SC 13G/A | — | 0000812295-01-000010 | Feb 9, 2001 | — |
| SC 13G/A | — | 0000812295-00-000142 | May 10, 2000 | — |
| SC 13G/A | — | 0000812295-00-000050 | Feb 15, 2000 | — |
| SC 13G/A | ENZON, INC. AMENDMENT NO. 8 | 0000950128-00-000223 | Feb 2, 2000 | — |
| SC 13G/A | — | 0000902664-00-000015 | Jan 13, 2000 | — |
| SC 13G/A | — | 0000812295-99-000102 | Sep 10, 1999 | — |
| SC 13G/A | SCHEDULE 13G AMENDMENT NO.1 | 0000922423-99-000262 | Feb 16, 1999 | — |
| SC 13G/A | ENZON, INC. AMENDMENT NO. 7 | 0000950128-99-000098 | Feb 2, 1999 | — |
| SC 13G/A | ENZON, INC. AMENDMENT NO. 6 | 0000950128-98-000145 | Jan 22, 1998 | — |
| SC 13G/A | ENZON, INC. AMENDMENT NO. 5 | 0000950128-97-000496 | Feb 10, 1997 | — |
| SC 13G/A | ENZON, INC. AMENDMENT NO. 4 | 0000950135-96-000583 | Feb 2, 1996 | — |