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 126-150 of 884 matching filings.

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25
Current page
6
SC 13G File 005-41602

ION GEOPHYSICAL CORPORATION

Filing date
19 Feb 2021
Reporting date
Not listed
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DEFA14A File 001-12691

FORM DEFA14A

Filing date
19 Feb 2021
Reporting date
Not listed
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DEFA14A File 001-12691

FORM DEFA14A

Filing date
18 Feb 2021
Reporting date
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424B5 File 333-234606

424B5

Filing date
18 Feb 2021
Reporting date
Not listed
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8-K File 001-12691

FORM 8-K REGISTERED DIRECT OFFERING

Filing date
18 Feb 2021
Reporting date
16 Feb 2021
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S-1/A File 333-252590

S-1/A

Filing date
12 Feb 2021
Reporting date
Not listed
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S-4/A File 333-252591

S-4/A

Filing date
12 Feb 2021
Reporting date
Not listed
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DEFA14A File 001-12691

FORM DEFA14A

Filing date
12 Feb 2021
Reporting date
Not listed
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SC 13G/A File 005-41602

SC 13G/A filing

Filing date
11 Feb 2021
Reporting date
Not listed
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UPLOAD

UPLOAD filing

Filing date
05 Feb 2021
Reporting date
Not listed
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UPLOAD

UPLOAD filing

Filing date
05 Feb 2021
Reporting date
Not listed
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S-4 File 333-252591

S-4

Filing date
29 Jan 2021
Reporting date
Not listed
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S-1 File 333-252590

S-1

Filing date
29 Jan 2021
Reporting date
Not listed
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DEF 14A File 001-12691

DEF 14A

Filing date
22 Jan 2021
Reporting date
23 Feb 2021
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PRE 14A File 001-12691

PRE 14A

Filing date
11 Jan 2021
Reporting date
11 Jan 2021
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4

FORM 4 SUBMISSION

Filing date
05 Jan 2021
Reporting date
31 Dec 2020
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8-K File 001-12691

8-K

Filing date
23 Dec 2020
Reporting date
23 Dec 2020
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4

FORM 4 SUBMISSION

Filing date
03 Dec 2020
Reporting date
01 Dec 2020
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4

FORM 4 SUBMISSION

Filing date
03 Dec 2020
Reporting date
01 Dec 2020
SEC evidence
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