HUDSON TECHNOLOGIES INC /NY — SC 13D/A Filings
21 SC 13D/A filings on record
This page lists all SC 13D/A filings submitted to the SEC by HUDSON TECHNOLOGIES INC /NY (HDSN), sorted by most recent first. Each row links to the full filing on EdgarLookup. HUDSON TECHNOLOGIES INC /NY has filed 21 SC 13D/A documents with the SEC since 2004. To view all SEC filings by HUDSON TECHNOLOGIES INC /NY, see the full filings list.
All
10-K
10-K/A
10-Q
10KSB
10KSB/A
10KSB40
10QSB
10QSB/A
11-K
144
3
4
4/A
424B3
424B5
5
8-K
8-K/A
ARS
CORRESP
DEF 14A
DEFA14A
DEFR14A
DEFS14A
EFFECT
NT 10-K
NT 10-Q
PRE 14A
PRER14A
PRES14A
REGDEX
REGDEX/A
S-3
S-3/A
S-3MEF
S-8
SB-2
SB-2/A
SC 13D
SC 13D/A
SC 13G
SC 13G/A
SC TO-I
SC TO-I/A
SCHEDULE 13D
SCHEDULE 13G
SCHEDULE 13G/A
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| SC 13D/A | SC 13D/A | 0001104659-21-060512 | May 4, 2021 | — |
| SC 13D/A | SC 13D/A | 0001144204-16-135390 | Nov 18, 2016 | — |
| SC 13D/A | SC 13D/A | 0001144204-16-135387 | Nov 18, 2016 | — |
| SC 13D/A | SC 13D/A | 0001144204-13-018658 | Mar 29, 2013 | — |
| SC 13D/A | SC 13D/A | 0001144204-13-018656 | Mar 29, 2013 | — |
| SC 13D/A | FORM SC 13D/A | 0001144204-12-051891 | Sep 18, 2012 | — |
| SC 13D/A | SCHEDULE 13D/A | 0001010541-08-000051 | Nov 3, 2008 | — |
| SC 13D/A | SCHEDULE 13D/A | 0001010541-08-000048 | Oct 24, 2008 | — |
| SC 13D/A | SCHEDULE 13D/A | 0001010541-08-000045 | Sep 9, 2008 | — |
| SC 13D/A | SCHEDULE 13D/A | 0001010541-08-000039 | Aug 8, 2008 | — |
| SC 13D/A | SCHEDULE 13D/A | 0001010541-08-000028 | Jun 2, 2008 | — |
| SC 13D/A | SCHEDULE 13D/A | 0001010541-08-000026 | Jun 2, 2008 | — |
| SC 13D/A | AMENDMENT NO. 8 TO SCHEDULE 13D | 0000950136-07-006827 | Oct 3, 2007 | — |
| SC 13D/A | SC 13D/A | 0001010541-07-000034 | Jul 20, 2007 | — |
| SC 13D/A | AMENDMENT NO. 7 TO SCHEDULE 13D | 0000950136-07-004954 | Jul 18, 2007 | — |
| SC 13D/A | AMEND NO. 6 TO SCHEDULE 13D | 0001125282-04-001452 | Apr 2, 2004 | — |
| SC 13D/A | AMENDMENT NO. 5 | 0001125282-03-006649 | Dec 22, 2003 | — |
| SC 13D/A | AMENDMENT NO. 4 | 0001125282-03-006513 | Dec 12, 2003 | — |
| SC 13D/A | SC 13D/A | 0001125282-03-005283 | Sep 15, 2003 | — |
| SC 13D/A | GENERAL STSTEMENT OF BENEFICAL OWNERSHIP | 0001125282-03-003998 | Jun 25, 2003 | — |
| SC 13D/A | HUDSON TECHNOLOGIES, INC. | 0000909012-01-000106 | Feb 14, 2001 | — |