NATURAL GAS SERVICES GROUP INC — SC 13G/A Filings
65 SC 13G/A filings on record
This page lists all SC 13G/A filings submitted to the SEC by NATURAL GAS SERVICES GROUP INC (NGS), sorted by most recent first. Each row links to the full filing on EdgarLookup. NATURAL GAS SERVICES GROUP INC has filed 65 SC 13G/A documents with the SEC since 2006. To view all SEC filings by NATURAL GAS SERVICES GROUP INC, see the full filings list.
All
10-K
10-K/A
10-Q
10-Q/A
10KSB
10KSB/A
10QSB
10QSB/A
144
25
3
3/A
4
4/A
424B1
424B3
424B5
5
8-A12B
8-K
8-K/A
ARS
CERTAMX
CERTNYS
CORRESP
DEF 14A
DEFA14A
EFFECT
NT 10-K
NT 10-Q
POS AM
POS462B
PRE 14A
S-1
S-1/A
S-1MEF
S-3
S-3/A
S-8
SB-2
SB-2/A
SC 13D
SC 13D/A
SC 13G
SC 13G/A
SCHEDULE 13D/A
SCHEDULE 13G
SCHEDULE 13G/A
SD
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| SC 13G/A | — | 0001140361-11-007773 | Feb 10, 2011 | — |
| SC 13G/A | — | 0001140361-11-007762 | Feb 10, 2011 | — |
| SC 13G/A | — | 0000897069-11-000117 | Feb 7, 2011 | — |
| SC 13G/A | — | 0001086364-11-003419 | Feb 7, 2011 | — |
| SC 13G/A | DOC ONE | 0000315066-10-001930 | Feb 16, 2010 | — |
| SC 13G/A | AMENDMENT NO. 4 | 0000897069-10-000147 | Feb 12, 2010 | — |
| SC 13G/A | AMENDMENT NO. 3 | 0000897069-09-000498 | Feb 13, 2009 | — |
| SC 13G/A | SEC FILING | 0000902219-08-000903 | Feb 14, 2008 | — |
| SC 13G/A | AMENDMENT NO. 2 | 0000897069-08-000317 | Feb 14, 2008 | — |
| SC 13G/A | SCHEDULE 13G/A 02-12-08 | 0000906344-08-000125 | Feb 12, 2008 | — |
| SC 13G/A | SCHEDULE 13G/A 02-12-08 | 0000906344-08-000123 | Feb 12, 2008 | — |
| SC 13G/A | SEC FILING | 0000902219-07-001255 | Nov 13, 2007 | — |
| SC 13G/A | AMENDMENT NO. 1 | 0000897069-07-001479 | Jul 9, 2007 | — |
| SC 13G/A | SEC FILING | 0000902219-07-000909 | Feb 14, 2007 | — |
| SC 13G/A | AMENDMENT TO SCHEDULE 13G | 0000950134-05-004047 | Mar 2, 2005 | — |