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 176-200 of 884 matching filings.

Per page
25
Current page
8
SC 13G File 005-41602

SC 13G

Filing date
14 Feb 2020
Reporting date
Not listed
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SC 13G/A File 005-41602

SC 13G/A filing

Filing date
14 Feb 2020
Reporting date
Not listed
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SC 13G/A File 005-41602

SC 13G/A filing

Filing date
13 Feb 2020
Reporting date
Not listed
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4

FORM 4 SUBMISSION

Filing date
12 Feb 2020
Reporting date
11 Feb 2020
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3

FORM 3 SUBMISSION

Filing date
07 Feb 2020
Reporting date
01 Feb 2020
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8-K File 001-12691

8-K

Filing date
06 Feb 2020
Reporting date
05 Feb 2020
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8-K File 001-12691

8-K USHER EMPLOYMENT AGREEMENT

Filing date
27 Jan 2020
Reporting date
27 Jan 2020
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3

FORM 3 SUBMISSION

Filing date
10 Jan 2020
Reporting date
01 Jan 2020
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8-K File 001-12691

8-K CFO TRANSITION

Filing date
03 Jan 2020
Reporting date
03 Jan 2020
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EFFECT File 333-234606

EFFECT filing

Filing date
23 Dec 2019
Reporting date
Not listed
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CORRESP

CORRESP filing

Filing date
20 Dec 2019
Reporting date
Not listed
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S-3/A File 333-234606

S-3/A

Filing date
19 Dec 2019
Reporting date
Not listed
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S-3 File 333-234606

S-3

Filing date
08 Nov 2019
Reporting date
Not listed
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8-K File 001-12691

8-K

Filing date
31 Oct 2019
Reporting date
30 Oct 2019
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4

FORM 4 SUBMISSION

Filing date
04 Sep 2019
Reporting date
01 Sep 2019
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4

FORM 4 SUBMISSION

Filing date
04 Sep 2019
Reporting date
01 Sep 2019
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8-K File 001-12691

8-K

Filing date
04 Sep 2019
Reporting date
04 Sep 2019
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4

FORM 4 SUBMISSION

Filing date
04 Sep 2019
Reporting date
01 Sep 2019
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8-K File 001-12691

8-K DC SIDES WITH ION

Filing date
03 Sep 2019
Reporting date
03 Sep 2019
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8-K File 001-12691

8-K

Filing date
01 Aug 2019
Reporting date
31 Jul 2019
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3

FORM 3 SUBMISSION

Filing date
19 Jun 2019
Reporting date
17 Jun 2019
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