ION GEOPHYSICAL CORP reports

Company Names, identifiers, and filing context for this profile. 1 identity field
Company location
Houston, TX
SEC filing record 1 source field available
Fiscal year end
31 December
ION GEOPHYSICAL CORP has filed 1,582 SEC EDGAR filings since 14 Feb 1994

SEC filing history

Showing 751-775 of 884 matching filings.

Per page
25
Current page
31
8-K File 001-12691

FORM 8-K

Filing date
04 Oct 2011
Reporting date
04 Oct 2011
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4

FORM 4 SUBMISSION

Filing date
07 Sep 2011
Reporting date
06 Sep 2011
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4

FORM 4 SUBMISSION

Filing date
06 Sep 2011
Reporting date
26 Aug 2011
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4

FORM 4 SUBMISSION

Filing date
06 Sep 2011
Reporting date
02 Sep 2011
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4

FORM 4 SUBMISSION

Filing date
06 Sep 2011
Reporting date
01 Sep 2011
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8-K File 001-12691

FORM 8-K

Filing date
02 Sep 2011
Reporting date
30 Aug 2011
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3/A

FORM 3/A SUBMISSION

Filing date
19 Aug 2011
Reporting date
16 Dec 2010
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4

FORM 4 SUBMISSION

Filing date
08 Aug 2011
Reporting date
08 Aug 2011
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S-8 File 333-176046

FORM S-8

Filing date
04 Aug 2011
Reporting date
Not listed
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8-K File 001-12691

FORM 8-K

Filing date
03 Aug 2011
Reporting date
02 Aug 2011
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8-K File 001-12691

FORM 8-K

Filing date
02 Aug 2011
Reporting date
02 Aug 2011
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8-K File 001-12691

FORM 8-K

Filing date
13 Jul 2011
Reporting date
13 Jul 2011
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10-K/A File 001-12691

FORM 10-K/A

Filing date
17 Jun 2011
Reporting date
31 Dec 2010
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4

FORM 4 SUBMISSION

Filing date
16 Jun 2011
Reporting date
15 Jun 2011
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8-K File 001-12691

FORM 8-K

Filing date
27 May 2011
Reporting date
27 May 2011
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4

FORM 4 SUBMISSION

Filing date
24 May 2011
Reporting date
23 May 2011
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8-K File 001-12691

FORM 8-K

Filing date
20 May 2011
Reporting date
20 May 2011
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4

FORM 4 SUBMISSION

Filing date
12 May 2011
Reporting date
11 May 2011
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DEFR14A File 001-12691

DEFR14A

Filing date
12 May 2011
Reporting date
Not listed
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10-Q File 001-12691

FORM 10-Q

Filing date
05 May 2011
Reporting date
31 Mar 2011
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8-K File 001-12691

FORM 8-K

Filing date
04 May 2011
Reporting date
04 May 2011
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ARS File 001-12691

AUTO-GENERATED PAPER DOCUMENT

Filing date
28 Apr 2011
Reporting date
31 Dec 2010
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DEF 14A File 001-12691

DEF 14A

Filing date
21 Apr 2011
Reporting date
27 May 2011
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4

FORM 4 SUBMISSION

Filing date
07 Apr 2011
Reporting date
06 Apr 2011
SEC evidence
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