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 601-625 of 884 matching filings.

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25

Current page

25

4

FORM 4 SUBMISSION

Filing date: 03 Dec 2013
Reporting date: 01 Dec 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 03 Dec 2013
Reporting date: 01 Dec 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 03 Dec 2013
Reporting date: 01 Dec 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 03 Dec 2013
Reporting date: 01 Dec 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 03 Dec 2013
Reporting date: 01 Dec 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 03 Dec 2013
Reporting date: 01 Dec 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 03 Dec 2013
Reporting date: 30 Oct 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 03 Dec 2013
Reporting date: 01 Dec 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 03 Dec 2013
Reporting date: 01 Dec 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 03 Dec 2013
Reporting date: 01 Dec 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-12691

8-K

Filing date: 18 Nov 2013
Reporting date: 18 Nov 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

10-Q File 001-12691

10-Q

Filing date: 15 Nov 2013
Reporting date: 30 Sep 2013
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

10-Q/A File 001-12691

10-Q/A

Filing date: 15 Nov 2013
Reporting date: 30 Jun 2013
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

10-Q/A File 001-12691

10-Q/A

Filing date: 15 Nov 2013
Reporting date: 31 Mar 2013
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

NT 10-Q File 001-12691

NT 10-Q

Filing date: 12 Nov 2013
Reporting date: 30 Sep 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-12691

8-K

Filing date: 12 Nov 2013
Reporting date: 12 Nov 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-12691

8-K

Filing date: 07 Nov 2013
Reporting date: 06 Nov 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-12691

8-K

Filing date: 25 Oct 2013
Reporting date: 24 Oct 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-12691

8-K

Filing date: 30 Sep 2013
Reporting date: 30 Sep 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-12691

8-K

Filing date: 27 Sep 2013
Reporting date: 27 Sep 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 16 Sep 2013
Reporting date: 13 Sep 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 13 Sep 2013
Reporting date: 13 Sep 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 04 Sep 2013
Reporting date: 01 Sep 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-12691

8-K

Filing date: 04 Sep 2013
Reporting date: 03 Sep 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 27 Aug 2013
Reporting date: 26 Aug 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

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