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 651-675 of 884 matching filings.

Per page
25
Current page
27
ARS File 001-12691

AUTO-GENERATED PAPER DOCUMENT

Filing date
18 Apr 2013
Reporting date
31 Dec 2012
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10-K/A File 001-12691

FORM 10-K AMENDMENT NO. 1

Filing date
17 Apr 2013
Reporting date
31 Dec 2012
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DEF 14A File 001-12691

DEF 14A

Filing date
16 Apr 2013
Reporting date
22 May 2013
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SC 13G/A File 005-41602

SC 13G/A filing

Filing date
29 Mar 2013
Reporting date
Not listed
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8-K File 001-12691

8-K

Filing date
25 Mar 2013
Reporting date
25 Mar 2013
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8-K File 001-12691

8-K

Filing date
18 Mar 2013
Reporting date
18 Mar 2013
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4

FORM 4 SUBMISSION

Filing date
15 Mar 2013
Reporting date
14 Mar 2013
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4

FORM 4 SUBMISSION

Filing date
20 Feb 2013
Reporting date
19 Feb 2013
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SC 13G/A File 005-41602

DISCLOSURE DOCUMENT

Filing date
14 Feb 2013
Reporting date
Not listed
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8-K File 001-12691

8-K

Filing date
14 Feb 2013
Reporting date
11 Feb 2013
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SC 13G/A File 005-41602

SC 13G/A filing

Filing date
13 Feb 2013
Reporting date
Not listed
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SC 13G File 005-41602

ION GEOPHYSICAL CORPORATION

Filing date
13 Feb 2013
Reporting date
Not listed
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SC 13G/A File 005-41602

SC 13G/A filing

Filing date
06 Feb 2013
Reporting date
Not listed
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5

FORM 5 SUBMISSION

Filing date
24 Jan 2013
Reporting date
31 Dec 2012
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5

FORM 5 SUBMISSION

Filing date
24 Jan 2013
Reporting date
31 Dec 2012
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SC 13G/A File 005-41602

SCHEDULE 13G/A

Filing date
08 Jan 2013
Reporting date
Not listed
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8-K File 001-12691

8-K

Filing date
04 Jan 2013
Reporting date
31 Dec 2012
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3

FORM 3 SUBMISSION

Filing date
06 Dec 2012
Reporting date
30 Nov 2012
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4

FORM 4 SUBMISSION

Filing date
04 Dec 2012
Reporting date
01 Dec 2012
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4

FORM 4 SUBMISSION

Filing date
04 Dec 2012
Reporting date
01 Dec 2012
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4

FORM 4 SUBMISSION

Filing date
04 Dec 2012
Reporting date
01 Dec 2012
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4

FORM 4 SUBMISSION

Filing date
04 Dec 2012
Reporting date
01 Dec 2012
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4

FORM 4 SUBMISSION

Filing date
04 Dec 2012
Reporting date
01 Dec 2012
SEC evidence
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Next action
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