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 76-100 of 884 matching filings.

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25

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4

4

FORM 4 SUBMISSION

Filing date: 13 May 2021
Reporting date: 11 May 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 13 May 2021
Reporting date: 11 May 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 13 May 2021
Reporting date: 11 May 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 13 May 2021
Reporting date: 11 May 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

S-8 File 333-256011

FORM S-8

Filing date: 11 May 2021
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: 07 May 2021
Reporting date: 06 May 2021
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

10-Q File 001-12691

FORM 10-Q

Filing date: 06 May 2021
Reporting date: 31 Mar 2021
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 001-12691

FORM 8-K

Filing date: 06 May 2021
Reporting date: 05 May 2021
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

3

3 filing

Filing date: 30 Apr 2021
Reporting date: 20 Apr 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13D File 005-41602

ION GEOPHYSICAL CORPORATION

Filing date: 30 Apr 2021
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

10-K/A File 001-12691

FORM 10-K/A

Filing date: 30 Apr 2021
Reporting date: 31 Dec 2020
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 001-12691

FORM 8-K

Filing date: 26 Apr 2021
Reporting date: 26 Apr 2021
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

424B5 File 333-234606

424B5

Filing date: 26 Apr 2021
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 22 Apr 2021
Reporting date: 20 Apr 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-12691

FORM 8-K

Filing date: 22 Apr 2021
Reporting date: 20 Apr 2021
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 21 Apr 2021
Reporting date: 19 Apr 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 21 Apr 2021
Reporting date: 19 Apr 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 21 Apr 2021
Reporting date: 19 Apr 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 21 Apr 2021
Reporting date: 19 Apr 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 21 Apr 2021
Reporting date: 19 Apr 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 21 Apr 2021
Reporting date: 19 Apr 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 21 Apr 2021
Reporting date: 19 Apr 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 21 Apr 2021
Reporting date: 19 Apr 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-12691

FORM 8-K

Filing date: 06 Apr 2021
Reporting date: 05 Apr 2021
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 001-12691

FORM 8-K

Filing date: 25 Mar 2021
Reporting date: 25 Mar 2021
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

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