ION GEOPHYSICAL CORP reports

Company location: Houston, TX
Fiscal year end: 31 December

ION GEOPHYSICAL CORP has filed 1,582 SEC EDGAR filings since 14 Feb 1994

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SEC filing history

Showing 151-175 of 884 matching filings.

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7

8-K File 001-12691

8-K

Filing date: 05 Nov 2020
Reporting date: 04 Nov 2020
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 03 Sep 2020
Reporting date: 01 Sep 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

10-Q File 001-12691

10-Q

Filing date: 06 Aug 2020
Reporting date: 30 Jun 2020
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 001-12691

8-K

Filing date: 06 Aug 2020
Reporting date: 05 Aug 2020
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 001-12691

8-K Q1 2020 REVENUES AND LIQUIDITY

Filing date: 01 Jul 2020
Reporting date: 01 Jul 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

SD File 001-12691

SD

Filing date: 29 May 2020
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-12691

8-K 2020 ANNUAL MEETING RESULTS

Filing date: 26 May 2020
Reporting date: 26 May 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

DEFA14A File 001-12691

DEFA14A ADDITIONAL MATERIALS

Filing date: 13 May 2020
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

10-Q File 001-12691

10-Q

Filing date: 07 May 2020
Reporting date: 31 Mar 2020
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 001-12691

8-K

Filing date: 07 May 2020
Reporting date: 06 May 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

DEF 14A File 001-12691

DEF 14A

Filing date: 22 Apr 2020
Reporting date: 26 May 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-12691

8-K ION SETTLEMENT WITH WG

Filing date: 09 Apr 2020
Reporting date: 09 Apr 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-12691

8-K PRELIM UPDATE

Filing date: 01 Apr 2020
Reporting date: 01 Apr 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-12691

8-K 2020 MKT CAP COMP

Filing date: 01 Apr 2020
Reporting date: 01 Apr 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 12 Mar 2020
Reporting date: 11 Mar 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 06 Mar 2020
Reporting date: 05 Mar 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 03 Mar 2020
Reporting date: 01 Mar 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 03 Mar 2020
Reporting date: 01 Mar 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 03 Mar 2020
Reporting date: 01 Mar 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 03 Mar 2020
Reporting date: 01 Mar 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 03 Mar 2020
Reporting date: 01 Mar 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 03 Mar 2020
Reporting date: 01 Mar 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 03 Mar 2020
Reporting date: 01 Mar 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 20 Feb 2020
Reporting date: 20 Feb 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 20 Feb 2020
Reporting date: 18 Feb 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

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