SC 13G/A
File 005-41602
SC 13G/A filing
- Filing date
- 10 Aug 2012
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
ION GEOPHYSICAL CORP reports
- Company location
- Houston, TX
- Fiscal year end
- 31 December
Company
Names, identifiers, and filing context for this profile.
1 identity field
SEC filing record 1 source field available
ION GEOPHYSICAL CORP has filed 1,582 SEC EDGAR filings since 14 Feb 1994
SEC filing history
Showing 701-725 of 884 matching filings.
Per page
25
Current page
29
8-K
File 001-12691
FORM 8-K
- Filing date
- 08 Aug 2012
- Reporting date
- 07 Aug 2012
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
10-Q
File 001-12691
FORM 10-Q
- Filing date
- 07 Aug 2012
- Reporting date
- 30 Jun 2012
- SEC evidence
- Open document Open filing Open XBRL
- Next action
- Verify source filing
4
FORM 4 SUBMISSION
- Filing date
- 25 Jun 2012
- Reporting date
- 22 Jun 2012
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
8-K
File 001-12691
FORM 8-K
- Filing date
- 30 May 2012
- Reporting date
- 29 May 2012
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
8-K
File 001-12691
FORM 8-K
- Filing date
- 23 May 2012
- Reporting date
- 23 May 2012
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
FORM 4 SUBMISSION
- Filing date
- 16 May 2012
- Reporting date
- 14 May 2012
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
SC 13G
File 005-41602
SCHEDULE 13G
- Filing date
- 11 May 2012
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
10-Q
File 001-12691
FORM 10-Q
- Filing date
- 03 May 2012
- Reporting date
- 31 Mar 2012
- SEC evidence
- Open document Open filing Open XBRL
- Next action
- Verify source filing
8-K
File 001-12691
FORM 8-K
- Filing date
- 03 May 2012
- Reporting date
- 02 May 2012
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
ARS
File 001-12691
AUTO-GENERATED PAPER DOCUMENT
- Filing date
- 25 Apr 2012
- Reporting date
- 31 Dec 2011
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
DEF 14A
File 001-12691
DEFINITIVE PROXY STATEMENT
- Filing date
- 20 Apr 2012
- Reporting date
- 23 May 2012
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
SC 13G/A
File 005-41602
SC 13G/A filing
- Filing date
- 10 Apr 2012
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
10-K/A
File 001-12691
FORM 10-K AMENDMENT NO. 1
- Filing date
- 26 Mar 2012
- Reporting date
- 31 Dec 2011
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
FORM 4 SUBMISSION
- Filing date
- 14 Mar 2012
- Reporting date
- 12 Mar 2012
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
8-K
File 001-12691
FORM 8-K
- Filing date
- 13 Mar 2012
- Reporting date
- 13 Mar 2012
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
8-K
File 001-12691
FORM 8-K
- Filing date
- 09 Mar 2012
- Reporting date
- 09 Mar 2012
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
FORM 4 SUBMISSION
- Filing date
- 05 Mar 2012
- Reporting date
- 01 Mar 2012
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
10-K
File 001-12691
FORM 10-K
- Filing date
- 24 Feb 2012
- Reporting date
- 31 Dec 2011
- SEC evidence
- Open document Open filing Open XBRL
- Next action
- Verify source filing
8-K
File 001-12691
FORM 8-K
- Filing date
- 16 Feb 2012
- Reporting date
- 15 Feb 2012
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
SC 13G/A
File 005-41602
SC 13G/A filing
- Filing date
- 14 Feb 2012
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
SC 13G
File 005-41602
DISCLOSURE DOCUMENT
- Filing date
- 14 Feb 2012
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
15-12B
File 001-12691
FORM 15-12B
- Filing date
- 13 Feb 2012
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
8-K
File 001-12691
FORM 8-K
- Filing date
- 13 Feb 2012
- Reporting date
- 10 Feb 2012
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
SC 13G/A
File 005-41602
SC 13G/A filing
- Filing date
- 13 Feb 2012
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing