A Central Index Key (CIK) is a unique identifier assigned by the SEC to each filer.

Why are some filings missing?

New filings appear as the SEC updates EDGAR, and older records can vary by availability.

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Updates follow new EDGAR submissions and periodic data refreshes.

Filer Snapshot

ION GEOPHYSICAL CORP SEC EDGAR Filings

SEC filings, ownership reports, and insider transactions for CIK 0000866609.

Entity Type

Company

Total Filings

1,582

Latest Filing

14 Nov 2023

Industry

Oil & Gas Field Exploration Services

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Source: SEC filing REVOKED

REVOKED filed on 14 Nov 2023 for CIK 0000866609.

View Source Filing

Industry: Oil & Gas Field Exploration Services (Office Of Energy & Transportation)
Business address: 4203 Yoakum Blvd, Suite 100, Houston, TX, 77006
State of incorporation: DE
Fiscal year end: 31 December
Former names: INPUT OUTPUT INC (to 05 Sep 2007)

Quick Takeaways

ION GEOPHYSICAL CORP is an SEC filer tracked under CIK 0000866609.
1,582 filings are listed on this profile.
Common form coverage includes REVOKED, 4, 8-K and more.

What Changed

Latest filing: REVOKED filed on 14 Nov 2023.
Report period: not specified in filing header.

Why This Matters

You can quote filing dates and form types directly from the SEC record on this page.
Use this profile before deeper ownership or insider analysis to confirm filing history context.

Source Evidence

Source: SEC filing REVOKED

REVOKED filed on 14 Nov 2023 for CIK 0000866609.

View Source Filing

Return Loop

Why revisit this filer page

A newly filed REVOKED can change the filing history, ownership context, or next research path for ION GEOPHYSICAL CORP.

Latest source-backed update: REVOKED filed 14 Nov 2023
Why come back: Revisit after a new SEC filing appears to compare the updated record with prior filings.

Latest filing on record: REVOKED filed 14 Nov 2023.
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Filer freshness comes from SEC EDGAR submission history and related source-backed ownership or portfolio filings when available.

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Company intelligence

Research ION GEOPHYSICAL CORP from filings to ownership signals

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Active modules

2/5

Available company intelligence paths on this page.

Filings

1,582

SEC submissions provide the evidence trail.

Ownership context

1/3

Insider, large-stake, and institutional ownership lanes.

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Forms 3/4/5

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Filer Overview

ION GEOPHYSICAL CORP has filed 1,582 SEC EDGAR filings since 14 Feb 1994. Common forms include REVOKED, 4, 8-K, 25-NSE and more.

Oil & Gas Field Exploration Services Insider transactions Latest 13F filings

Latest Filings

Recent SEC filings for ION GEOPHYSICAL CORP with direct links to document and filing folders.

Form type	Document	Filing	Description	Filing date	Reporting date	File number(s)
REVOKED	Open REVOKED document	View SEC filing for REVOKED		14 Nov 2023		001-12691
4	Open 4 document	View SEC filing for 4	FORM 4	29 Jul 2022	27 Jul 2022
8-K	Open 8-K document \| Open XBRL data	View SEC filing for 8-K	FORM 8-K	22 Jul 2022	18 Jul 2022	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4	12 Jul 2022	08 Jul 2022
4	Open 4 document	View SEC filing for 4	FORM 4	12 Jul 2022	08 Jul 2022
8-K	Open 8-K document \| Open XBRL data	View SEC filing for 8-K	FORM 8-K	08 Jul 2022	01 Jul 2022	001-12691
25-NSE	Open 25-NSE document	View SEC filing for 25-NSE		03 Jun 2022		001-12691
8-K	Open 8-K document \| Open XBRL data	View SEC filing for 8-K	FORM 8-K	19 May 2022	18 May 2022	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4	13 May 2022	11 May 2022
4	Open 4 document	View SEC filing for 4	FORM 4	13 May 2022	11 May 2022
4	Open 4 document	View SEC filing for 4	FORM 4	13 May 2022	11 May 2022
4	Open 4 document	View SEC filing for 4	FORM 4	13 May 2022	11 May 2022
4	Open 4 document	View SEC filing for 4	FORM 4	13 May 2022	11 May 2022
4	Open 4 document	View SEC filing for 4	FORM 4	13 May 2022	11 May 2022
4	Open 4 document	View SEC filing for 4	FORM 4	13 May 2022	11 May 2022
RW	Open RW document	View SEC filing for RW	FORM RW	12 May 2022		333-257757
SC 13D/A	Open SC 13D/A document	View SEC filing for SC 13D/A	ION GEOPHYSICAL CORPORATION	05 May 2022		005-41602
8-K	Open 8-K document \| Open XBRL data	View SEC filing for 8-K	FORM 8-K	22 Apr 2022	18 Apr 2022	001-12691
8-K	Open 8-K document \| Open XBRL data	View SEC filing for 8-K	FORM 8-K	13 Apr 2022	10 Apr 2022	001-12691
3	Open 3 document	View SEC filing for 3	BATE FORM 3	08 Apr 2022	29 Mar 2022
8-K	Open 8-K document \| Open XBRL data	View SEC filing for 8-K	FORM 8-K	05 Apr 2022	04 Apr 2022	001-12691
8-K	Open 8-K document \| Open XBRL data	View SEC filing for 8-K	FORM 8-K	01 Apr 2022	29 Mar 2022	001-12691
NT 10-K	Open NT 10-K document	View SEC filing for NT 10-K	FORM NT 10-K	01 Apr 2022	31 Dec 2021	001-12691
8-K	Open 8-K document \| Open XBRL data	View SEC filing for 8-K	FORM 8-K	09 Mar 2022	08 Mar 2022	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4	08 Mar 2022	05 Mar 2022
4	Open 4 document	View SEC filing for 4	FORM 4	03 Mar 2022	01 Mar 2022
4	Open 4 document	View SEC filing for 4	FORM 4	03 Mar 2022	01 Mar 2022
4	Open 4 document	View SEC filing for 4	FORM 4	03 Mar 2022	01 Mar 2022
4	Open 4 document	View SEC filing for 4	FORM 4	03 Mar 2022	01 Mar 2022
4	Open 4 document	View SEC filing for 4	FORM 4	03 Mar 2022	01 Mar 2022
4	Open 4 document	View SEC filing for 4	FORM 4	03 Mar 2022	01 Mar 2022
4	Open 4 document	View SEC filing for 4	FORM 4	03 Mar 2022	01 Mar 2022
8-K	Open 8-K document \| Open XBRL data	View SEC filing for 8-K	FORM 8-K	15 Feb 2022	11 Feb 2022	001-12691
SC 13G	Open SC 13G document	View SEC filing for SC 13G	SC 13G	14 Feb 2022		005-41602
SC 13G/A	Open SC 13G/A document	View SEC filing for SC 13G/A		10 Feb 2022		005-41602
8-K	Open 8-K document \| Open XBRL data	View SEC filing for 8-K	FORM 8-K	04 Feb 2022	31 Jan 2022	001-12691
8-K	Open 8-K document \| Open XBRL data	View SEC filing for 8-K	FORM 8-K	18 Jan 2022	14 Jan 2022	001-12691
SC 13G/A	Open SC 13G/A document	View SEC filing for SC 13G/A	ION GEOPHYSICAL CORP	13 Jan 2022		005-41602
SC 13G/A	Open SC 13G/A document	View SEC filing for SC 13G/A	SABBY 13G-A IO 1.03.22	04 Jan 2022		005-41602
8-K	Open 8-K document \| Open XBRL data	View SEC filing for 8-K	FORM 8-K	23 Dec 2021	20 Dec 2021	001-12691
8-K	Open 8-K document \| Open XBRL data	View SEC filing for 8-K	FORM 8-K	17 Dec 2021	16 Dec 2021	001-12691
8-K	Open 8-K document \| Open XBRL data	View SEC filing for 8-K	FORM 8-K	16 Dec 2021	16 Dec 2021	001-12691
8-K	Open 8-K document \| Open XBRL data	View SEC filing for 8-K	FORM 8-K	13 Dec 2021	09 Dec 2021	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4	03 Dec 2021	01 Dec 2021
4	Open 4 document	View SEC filing for 4	FORM 4	03 Dec 2021	01 Dec 2021
4	Open 4 document	View SEC filing for 4	FORM 4	03 Dec 2021	01 Dec 2021
4	Open 4 document	View SEC filing for 4	FORM 4	03 Dec 2021	01 Dec 2021
4	Open 4 document	View SEC filing for 4	FORM 4	03 Dec 2021	01 Dec 2021
4	Open 4 document	View SEC filing for 4	FORM 4	03 Dec 2021	01 Dec 2021
4	Open 4 document	View SEC filing for 4	FORM 4	03 Dec 2021	01 Dec 2021
10-Q	Open 10-Q document \| Open XBRL data	View SEC filing for 10-Q	FORM 10-Q	03 Nov 2021	30 Sep 2021	001-12691
8-K	Open 8-K document \| Open XBRL data	View SEC filing for 8-K	FORM 8-K	03 Nov 2021	03 Nov 2021	001-12691
8-K	Open 8-K document \| Open XBRL data	View SEC filing for 8-K	FORM 8-K	18 Oct 2021	18 Oct 2021	001-12691
4	Open 4 document	View SEC filing for 4		23 Sep 2021	21 Sep 2021
SC 13D/A	Open SC 13D/A document	View SEC filing for SC 13D/A	ION GEOPHYSICAL CORPORATION	23 Sep 2021		005-41602
4	Open 4 document	View SEC filing for 4		20 Sep 2021	16 Sep 2021
SC 13D/A	Open SC 13D/A document	View SEC filing for SC 13D/A	ION GEOPHYSICAL CORPORATION	20 Sep 2021		005-41602
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Sep 2021	01 Sep 2021
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Sep 2021	01 Sep 2021
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Sep 2021	01 Sep 2021
10-Q	Open 10-Q document \| Open XBRL data	View SEC filing for 10-Q		12 Aug 2021	30 Jun 2021	001-12691
8-K	Open 8-K document \| Open XBRL data	View SEC filing for 8-K		12 Aug 2021	11 Aug 2021	001-12691
8-K	Open 8-K document \| Open XBRL data	View SEC filing for 8-K	FORM 8-K	16 Jul 2021	15 Jul 2021	001-12691
S-1	Open S-1 document	View SEC filing for S-1	S-1	08 Jul 2021		333-257757
8-K	Open 8-K document \| Open XBRL data	View SEC filing for 8-K	FORM 8-K	07 Jul 2021	07 Jul 2021	001-12691
3	Open 3 document	View SEC filing for 3	FORM 3 SUBMISSION	06 Jul 2021	28 Jun 2021
3	Open 3 document	View SEC filing for 3	FORM 3 SUBMISSION	06 Jul 2021	28 Jun 2021
8-K	Open 8-K document \| Open XBRL data	View SEC filing for 8-K	FORM 8-K	30 Jun 2021	28 Jun 2021	001-12691
8-K	Open 8-K document \| Open XBRL data	View SEC filing for 8-K	FORM 8-K	25 Jun 2021	23 Jun 2021	001-12691
SC 13D/A	Open SC 13D/A document	View SEC filing for SC 13D/A	SC 13D/A	16 Jun 2021		005-41602
SD	Open SD document	View SEC filing for SD	FORM SD	28 May 2021		001-12691
DEF 14A	Open DEF 14A document	View SEC filing for DEF 14A	DEF 14A	14 May 2021	23 Jun 2021	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	13 May 2021	11 May 2021
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	13 May 2021	11 May 2021
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	13 May 2021	11 May 2021
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	13 May 2021	11 May 2021
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	13 May 2021	11 May 2021
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	13 May 2021	11 May 2020
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	13 May 2021	11 May 2021
S-8	Open S-8 document	View SEC filing for S-8	FORM S-8	11 May 2021		333-256011
8-K	Open 8-K document \| Open XBRL data	View SEC filing for 8-K	FORM 8-K	07 May 2021	06 May 2021	001-12691
10-Q	Open 10-Q document \| Open XBRL data	View SEC filing for 10-Q	FORM 10-Q	06 May 2021	31 Mar 2021	001-12691
8-K	Open 8-K document \| Open XBRL data	View SEC filing for 8-K	FORM 8-K	06 May 2021	05 May 2021	001-12691
3	Open 3 document	View SEC filing for 3		30 Apr 2021	20 Apr 2021
SC 13D	Open SC 13D document	View SEC filing for SC 13D	ION GEOPHYSICAL CORPORATION	30 Apr 2021		005-41602
10-K/A	Open 10-K/A document \| Open XBRL data	View SEC filing for 10-K/A	FORM 10-K/A	30 Apr 2021	31 Dec 2020	001-12691
8-K	Open 8-K document \| Open XBRL data	View SEC filing for 8-K	FORM 8-K	26 Apr 2021	26 Apr 2021	001-12691
424B5	Open 424B5 document	View SEC filing for 424B5	424B5	26 Apr 2021		333-234606
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	22 Apr 2021	20 Apr 2021
8-K	Open 8-K document \| Open XBRL data	View SEC filing for 8-K	FORM 8-K	22 Apr 2021	20 Apr 2021	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	21 Apr 2021	19 Apr 2021
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	21 Apr 2021	19 Apr 2021
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	21 Apr 2021	19 Apr 2021
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	21 Apr 2021	19 Apr 2021
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	21 Apr 2021	19 Apr 2021
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	21 Apr 2021	19 Apr 2021
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	21 Apr 2021	19 Apr 2021
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	21 Apr 2021	19 Apr 2021
8-K	Open 8-K document \| Open XBRL data	View SEC filing for 8-K	FORM 8-K	06 Apr 2021	05 Apr 2021	001-12691
8-K	Open 8-K document \| Open XBRL data	View SEC filing for 8-K	FORM 8-K	25 Mar 2021	25 Mar 2021	001-12691
8-K	Open 8-K document \| Open XBRL data	View SEC filing for 8-K	FORM 8-K	23 Mar 2021	23 Mar 2021	001-12691
EFFECT	Open EFFECT document	View SEC filing for EFFECT		10 Mar 2021		333-252590
EFFECT	Open EFFECT document	View SEC filing for EFFECT		10 Mar 2021		333-252591
8-K	Open 8-K document \| Open XBRL data	View SEC filing for 8-K	FORM 8-K	10 Mar 2021	10 Mar 2021	001-12691
424B3	Open 424B3 document	View SEC filing for 424B3	424B3	10 Mar 2021		333-252591
424B3	Open 424B3 document	View SEC filing for 424B3	424B3	10 Mar 2021		333-252590
CORRESP	Open CORRESP document	View SEC filing for CORRESP		10 Mar 2021
CORRESP	Open CORRESP document	View SEC filing for CORRESP		10 Mar 2021
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	09 Mar 2021	05 Mar 2021
CORRESP	Open CORRESP document	View SEC filing for CORRESP		09 Mar 2021
CORRESP	Open CORRESP document	View SEC filing for CORRESP		09 Mar 2021
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2021	01 Mar 2021
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2021	01 Mar 2021
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2021	01 Mar 2021
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2021	01 Mar 2021
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2021	01 Mar 2021
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2021	01 Mar 2021
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2021	01 Mar 2021
S-1/A	Open S-1/A document	View SEC filing for S-1/A	S-1/A	03 Mar 2021		333-252590
S-4/A	Open S-4/A document \| Open XBRL data	View SEC filing for S-4/A	FORM S-4/A	03 Mar 2021		333-252591
3	Open 3 document	View SEC filing for 3	FORM 3 SUBMISSION	02 Mar 2021	08 Feb 2021
3	Open 3 document	View SEC filing for 3	FORM 3 SUBMISSION	26 Feb 2021	08 Feb 2021
8-K	Open 8-K document \| Open XBRL data	View SEC filing for 8-K	FORM 8-K	26 Feb 2021	22 Feb 2021	001-12691
8-K	Open 8-K document \| Open XBRL data	View SEC filing for 8-K	FORM 8-K	24 Feb 2021	23 Feb 2021	001-12691
SC 13G	Open SC 13G document	View SEC filing for SC 13G	SABBY 13G IO 2.19.21	19 Feb 2021		005-41602
SC 13G	Open SC 13G document	View SEC filing for SC 13G	ION GEOPHYSICAL CORPORATION	19 Feb 2021		005-41602
DEFA14A	Open DEFA14A document	View SEC filing for DEFA14A	FORM DEFA14A	19 Feb 2021		001-12691
DEFA14A	Open DEFA14A document	View SEC filing for DEFA14A	FORM DEFA14A	18 Feb 2021		001-12691
424B5	Open 424B5 document	View SEC filing for 424B5	424B5	18 Feb 2021		333-234606
8-K	Open 8-K document \| Open XBRL data	View SEC filing for 8-K	FORM 8-K REGISTERED DIRECT OFFERING	18 Feb 2021	16 Feb 2021	001-12691
S-1/A	Open S-1/A document	View SEC filing for S-1/A	S-1/A	12 Feb 2021		333-252590
S-4/A	Open S-4/A document	View SEC filing for S-4/A	S-4/A	12 Feb 2021		333-252591
10-K	Open 10-K document \| Open XBRL data	View SEC filing for 10-K	FORM 10-K	12 Feb 2021	31 Dec 2020	001-12691
DEFA14A	Open DEFA14A document	View SEC filing for DEFA14A	FORM DEFA14A	12 Feb 2021		001-12691
8-K	Open 8-K document \| Open XBRL data	View SEC filing for 8-K	FORM 8-K	12 Feb 2021	11 Feb 2021	001-12691
8-K	Open 8-K document \| Open XBRL data	View SEC filing for 8-K	FORM 8-K	11 Feb 2021	08 Feb 2021	001-12691
SC 13G/A	Open SC 13G/A document	View SEC filing for SC 13G/A		11 Feb 2021		005-41602
8-K	Open 8-K document \| Open XBRL data	View SEC filing for 8-K	FORM 8-K	11 Feb 2021	10 Feb 2021	001-12691
UPLOAD	Open UPLOAD document	View SEC filing for UPLOAD		05 Feb 2021
UPLOAD	Open UPLOAD document	View SEC filing for UPLOAD		05 Feb 2021
S-4	Open S-4 document	View SEC filing for S-4	S-4	29 Jan 2021		333-252591
S-1	Open S-1 document	View SEC filing for S-1	S-1	29 Jan 2021		333-252590
DEF 14A	Open DEF 14A document	View SEC filing for DEF 14A	DEF 14A	22 Jan 2021	23 Feb 2021	001-12691
PRE 14A	Open PRE 14A document	View SEC filing for PRE 14A	PRE 14A	11 Jan 2021	11 Jan 2021	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	05 Jan 2021	31 Dec 2020
8-K	Open 8-K document \| Open XBRL data	View SEC filing for 8-K	FORM 8-K	29 Dec 2020	22 Dec 2020	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	23 Dec 2020	23 Dec 2020	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Dec 2020	01 Dec 2020
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Dec 2020	01 Dec 2020
10-Q	Open 10-Q document \| Open XBRL data	View SEC filing for 10-Q	10-Q	05 Nov 2020	30 Sep 2020	001-12691
8-K	Open 8-K document \| Open XBRL data	View SEC filing for 8-K	8-K	05 Nov 2020	04 Nov 2020	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Sep 2020	01 Sep 2020
10-Q	Open 10-Q document \| Open XBRL data	View SEC filing for 10-Q	10-Q	06 Aug 2020	30 Jun 2020	001-12691
8-K	Open 8-K document \| Open XBRL data	View SEC filing for 8-K	8-K	06 Aug 2020	05 Aug 2020	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K Q1 2020 REVENUES AND LIQUIDITY	01 Jul 2020	01 Jul 2020	001-12691
SD	Open SD document	View SEC filing for SD	SD	29 May 2020		001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K 2020 ANNUAL MEETING RESULTS	26 May 2020	26 May 2020	001-12691
DEFA14A	Open DEFA14A document	View SEC filing for DEFA14A	DEFA14A ADDITIONAL MATERIALS	13 May 2020		001-12691
10-Q	Open 10-Q document \| Open XBRL data	View SEC filing for 10-Q	10-Q	07 May 2020	31 Mar 2020	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	07 May 2020	06 May 2020	001-12691
DEF 14A	Open DEF 14A document	View SEC filing for DEF 14A	DEF 14A	22 Apr 2020	26 May 2020	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K ION SETTLEMENT WITH WG	09 Apr 2020	09 Apr 2020	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K PRELIM UPDATE	01 Apr 2020	01 Apr 2020	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K 2020 MKT CAP COMP	01 Apr 2020	01 Apr 2020	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	12 Mar 2020	11 Mar 2020
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	06 Mar 2020	05 Mar 2020
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2020	01 Mar 2020
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2020	01 Mar 2020
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2020	01 Mar 2020
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2020	01 Mar 2020
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2020	01 Mar 2020
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2020	01 Mar 2020
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2020	01 Mar 2020
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	20 Feb 2020	20 Feb 2020
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	20 Feb 2020	18 Feb 2020
SC 13G	Open SC 13G document	View SEC filing for SC 13G	SC 13G	14 Feb 2020		005-41602
SC 13G/A	Open SC 13G/A document	View SEC filing for SC 13G/A		14 Feb 2020		005-41602
SC 13G/A	Open SC 13G/A document	View SEC filing for SC 13G/A		13 Feb 2020		005-41602
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	12 Feb 2020	11 Feb 2020
3	Open 3 document	View SEC filing for 3	FORM 3 SUBMISSION	07 Feb 2020	01 Feb 2020
10-K	Open 10-K document \| Open XBRL data	View SEC filing for 10-K	10-K	06 Feb 2020	31 Dec 2019	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	06 Feb 2020	05 Feb 2020	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K USHER EMPLOYMENT AGREEMENT	27 Jan 2020	27 Jan 2020	001-12691
3	Open 3 document	View SEC filing for 3	FORM 3 SUBMISSION	10 Jan 2020	01 Jan 2020
8-K	Open 8-K document	View SEC filing for 8-K	8-K CFO TRANSITION	03 Jan 2020	03 Jan 2020	001-12691
EFFECT	Open EFFECT document	View SEC filing for EFFECT		23 Dec 2019		333-234606
CORRESP	Open CORRESP document	View SEC filing for CORRESP		20 Dec 2019
S-3/A	Open S-3/A document	View SEC filing for S-3/A	S-3/A	19 Dec 2019		333-234606
S-3	Open S-3 document	View SEC filing for S-3	S-3	08 Nov 2019		333-234606
8-K	Open 8-K document \| Open XBRL data	View SEC filing for 8-K	8-K	08 Nov 2019	08 Nov 2019	001-12691
10-Q	Open 10-Q document \| Open XBRL data	View SEC filing for 10-Q	10-Q	31 Oct 2019	30 Sep 2019	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	31 Oct 2019	30 Oct 2019	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	04 Sep 2019	01 Sep 2019
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	04 Sep 2019	01 Sep 2019
8-K	Open 8-K document	View SEC filing for 8-K	8-K	04 Sep 2019	04 Sep 2019	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	04 Sep 2019	01 Sep 2019
8-K	Open 8-K document	View SEC filing for 8-K	8-K DC SIDES WITH ION	03 Sep 2019	03 Sep 2019	001-12691
10-Q	Open 10-Q document \| Open XBRL data	View SEC filing for 10-Q	10-Q	01 Aug 2019	30 Jun 2019	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	01 Aug 2019	31 Jul 2019	001-12691
3	Open 3 document	View SEC filing for 3	FORM 3 SUBMISSION	19 Jun 2019	17 Jun 2019
8-K	Open 8-K document	View SEC filing for 8-K	8-K	17 Jun 2019	17 Jun 2019	001-12691
3	Open 3 document	View SEC filing for 3	FORM 3 SUBMISSION	14 Jun 2019	07 Jun 2019
8-K	Open 8-K document	View SEC filing for 8-K	8-K	10 Jun 2019	10 Jun 2019	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	04 Jun 2019	29 May 2019	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	04 Jun 2019	01 Jun 2019
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Jun 2019	31 May 2019
SD	Open SD document	View SEC filing for SD	SD CY2018	31 May 2019		001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	16 May 2019	16 May 2019	001-12691
DEFA14A	Open DEFA14A document	View SEC filing for DEFA14A	DEFA14A	03 May 2019		001-12691
10-Q	Open 10-Q document \| Open XBRL data	View SEC filing for 10-Q	10-Q	02 May 2019	31 Mar 2019	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	02 May 2019	01 May 2019	001-12691
DEF 14A	Open DEF 14A document	View SEC filing for DEF 14A	DEF 14A	11 Apr 2019	15 May 2019	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	05 Mar 2019	01 Mar 2019
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	05 Mar 2019	01 Mar 2019
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	05 Mar 2019	01 Mar 2019
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	05 Mar 2019	01 Mar 2019
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	05 Mar 2019	01 Mar 2019
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	05 Mar 2019	01 Mar 2019
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	05 Mar 2019	01 Mar 2019
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	05 Mar 2019	01 Mar 2019
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	05 Mar 2019	01 Mar 2019
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	05 Mar 2019	01 Mar 2019
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	05 Mar 2019	01 Mar 2019
SC 13G	Open SC 13G document	View SEC filing for SC 13G		14 Feb 2019		005-41602
SC 13G	Open SC 13G document	View SEC filing for SC 13G	SC 13G	14 Feb 2019		005-41602
424B3	Open 424B3 document	View SEC filing for 424B3	424B3 WARRANT EXTENSION	13 Feb 2019		333-213769
SC 13G	Open SC 13G document	View SEC filing for SC 13G		12 Feb 2019		005-41602
8-K	Open 8-K document	View SEC filing for 8-K	8-K JENNINGS RESIGNATION	08 Feb 2019	08 Feb 2019	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	08 Feb 2019	08 Feb 2019	001-12691
10-K	Open 10-K document \| Open XBRL data	View SEC filing for 10-K	10-K	07 Feb 2019	31 Dec 2018	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	07 Feb 2019	06 Feb 2019	001-12691
SC 13G/A	Open SC 13G/A document	View SEC filing for SC 13G/A	SEC SCHEDULE 13G	31 Jan 2019		005-41602
SC 13G/A	Open SC 13G/A document	View SEC filing for SC 13G/A		31 Jan 2019		005-41602
SC 13G/A	Open SC 13G/A document	View SEC filing for SC 13G/A		31 Jan 2019		005-41602
S-8	Open S-8 document	View SEC filing for S-8	S-8	18 Jan 2019		333-229311
SC 13G/A	Open SC 13G/A document	View SEC filing for SC 13G/A	ION GEOPHYSICAL CORPORATION	15 Jan 2019		005-41602
8-K	Open 8-K document	View SEC filing for 8-K	8-K	11 Jan 2019	11 Jan 2019	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	06 Dec 2018	06 Dec 2018
8-K	Open 8-K document	View SEC filing for 8-K	8-K SPEC MTG RESULTS AND NEO GRANTS	06 Dec 2018	06 Dec 2018	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	04 Dec 2018	01 Dec 2018
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	04 Dec 2018	01 Dec 2018
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	04 Dec 2018	01 Dec 2018
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	04 Dec 2018	01 Dec 2018
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	04 Dec 2018	01 Dec 2018
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	04 Dec 2018	01 Dec 2018
DEFA14A	Open DEFA14A document	View SEC filing for DEFA14A	DEFA14A SPECMTGEXPLNOTE2	23 Nov 2018		001-12691
DEFA14A	Open DEFA14A document	View SEC filing for DEFA14A	DEFA14A SPECMTGPRXYREV	09 Nov 2018		001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	07 Nov 2018	07 Nov 2018
10-Q	Open 10-Q document \| Open XBRL data	View SEC filing for 10-Q	10-Q	02 Nov 2018	30 Sep 2018	001-12691
DEF 14A	Open DEF 14A document	View SEC filing for DEF 14A	DEF 14A	01 Nov 2018	30 Nov 2018	001-12691
DEFA14A	Open DEFA14A document	View SEC filing for DEFA14A	DEFA14A	01 Nov 2018		001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	01 Nov 2018	31 Oct 2018	001-12691
SC 13G	Open SC 13G document	View SEC filing for SC 13G		26 Oct 2018		005-41602
8-K	Open 8-K document	View SEC filing for 8-K	8-K	21 Aug 2018	21 Aug 2018	001-12691
SC 13G	Open SC 13G document	View SEC filing for SC 13G		20 Aug 2018		005-41602
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	15 Aug 2018	14 Aug 2018
10-Q	Open 10-Q document \| Open XBRL data	View SEC filing for 10-Q	10-Q	02 Aug 2018	30 Jun 2018	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	02 Aug 2018	01 Aug 2018	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	26 Jun 2018	22 Jun 2018
8-K	Open 8-K document	View SEC filing for 8-K	8-K	22 Jun 2018	22 Jun 2018	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	20 Jun 2018	18 Jun 2018
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	05 Jun 2018	04 Jun 2018
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	05 Jun 2018	01 Jun 2018
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	01 Jun 2018	30 May 2018
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	01 Jun 2018	30 May 2018
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	01 Jun 2018	30 May 2018
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	01 Jun 2018	30 May 2018
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	01 Jun 2018	30 May 2016
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	01 Jun 2018	30 May 2018
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	01 Jun 2018	30 May 2018
SD	Open SD document	View SEC filing for SD	SD	31 May 2018		001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	16 May 2018	16 May 2018	001-12691
10-Q	Open 10-Q document \| Open XBRL data	View SEC filing for 10-Q	10-Q	03 May 2018	31 Mar 2018	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	03 May 2018	02 May 2018	001-12691
3	Open 3 document	View SEC filing for 3	FORM 3 SUBMISSION	20 Apr 2018	13 Apr 2018
8-K	Open 8-K document	View SEC filing for 8-K	8-K ZHENG	13 Apr 2018	13 Apr 2018	001-12691
DEF 14A	Open DEF 14A document	View SEC filing for DEF 14A	DEF 14A	13 Apr 2018	16 May 2018	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	02 Mar 2018	01 Mar 2018
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	02 Mar 2018	01 Mar 2018
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	02 Mar 2018	01 Mar 2018
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	02 Mar 2018	01 Mar 2018
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	02 Mar 2018	01 Mar 2018
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	02 Mar 2018	01 Mar 2018
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	02 Mar 2018	01 Mar 2018
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	02 Mar 2018	01 Mar 2018
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	02 Mar 2018	01 Mar 2018
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	02 Mar 2018	01 Mar 2018
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	02 Mar 2018	01 Mar 2018
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	02 Mar 2018	01 Mar 2018
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	02 Mar 2018	01 Mar 2018
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	02 Mar 2018	01 Mar 2018
8-K	Open 8-K document	View SEC filing for 8-K	8-K	02 Mar 2018	02 Mar 2018	001-12691
SC 13G	Open SC 13G document	View SEC filing for SC 13G	ION GEOPHYSICAL CORP	22 Feb 2018		005-41602
424B5	Open 424B5 document	View SEC filing for 424B5	424B5	20 Feb 2018		333-213769
8-K	Open 8-K document	View SEC filing for 8-K	8-K	16 Feb 2018	15 Feb 2018	001-12691
424B5	Open 424B5 document	View SEC filing for 424B5	424B5	15 Feb 2018		333-213769
S-3MEF	Open S-3MEF document	View SEC filing for S-3MEF	S-3MEF	15 Feb 2018		333-223053
SC 13G/A	Open SC 13G/A document	View SEC filing for SC 13G/A	SEC SCHEDULE 13G	12 Feb 2018		005-41602
10-K/A	Open 10-K/A document	View SEC filing for 10-K/A	10-K/A	12 Feb 2018	31 Dec 2017	001-12691
10-K	Open 10-K document \| Open XBRL data	View SEC filing for 10-K	10-K	08 Feb 2018	31 Dec 2017	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	08 Feb 2018	07 Feb 2018	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	19 Dec 2017	15 Dec 2017
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	19 Dec 2017	15 Dec 2017
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	19 Dec 2017	15 Dec 2017
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	19 Dec 2017	15 Dec 2017
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	19 Dec 2017	15 Dec 2017
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	19 Dec 2017	15 Dec 2017
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	19 Dec 2017	15 Dec 2017
8-K	Open 8-K document	View SEC filing for 8-K	8-K	19 Dec 2017	19 Dec 2017	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	18 Dec 2017	14 Dec 2017
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	18 Dec 2017	14 Dec 2017
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	18 Dec 2017	14 Dec 2017
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	18 Dec 2017	14 Dec 2017
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	18 Dec 2017	14 Dec 2017
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	18 Dec 2017	14 Dec 2017
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	18 Dec 2017	14 Dec 2017
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	05 Dec 2017	01 Dec 2017
10-Q	Open 10-Q document \| Open XBRL data	View SEC filing for 10-Q	10-Q	02 Nov 2017	30 Sep 2017	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	02 Nov 2017	01 Nov 2017	001-12691
3	Open 3 document	View SEC filing for 3	FORM 3 SUBMISSION	13 Sep 2017	06 Sep 2017
8-K	Open 8-K document	View SEC filing for 8-K	8-K	28 Aug 2017	28 Aug 2017	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	14 Aug 2017	10 Aug 2017
10-Q	Open 10-Q document \| Open XBRL data	View SEC filing for 10-Q	10-Q	03 Aug 2017	30 Jun 2017	001-12691
8-K	Open 8-K document \| Open XBRL data	View SEC filing for 8-K	8-K	03 Aug 2017	02 Aug 2017	001-12691
8-K	Open 8-K document \| Open XBRL data	View SEC filing for 8-K	8-K	21 Jul 2017	21 Jul 2017	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	02 Jun 2017	01 Jun 2017
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	02 Jun 2017	01 Jun 2017
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	02 Jun 2017	01 Jun 2017
SD	Open SD document	View SEC filing for SD	SD	31 May 2017		001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	18 May 2017	18 May 2017	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	17 May 2017	17 May 2017	001-12691
10-Q	Open 10-Q document \| Open XBRL data	View SEC filing for 10-Q	10-Q	04 May 2017	31 Mar 2017	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	04 May 2017	04 May 2017	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	02 May 2017	02 May 2017	001-12691
DEF 14A	Open DEF 14A document	View SEC filing for DEF 14A	DEF14A	13 Apr 2017	17 May 2017	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2017	01 Mar 2017
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2017	01 Mar 2017
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2017	01 Mar 2017
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2017	01 Mar 2017
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2017	01 Mar 2017
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2017	01 Mar 2017
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2017	01 Mar 2017
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2017	01 Mar 2017
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2017	01 Mar 2017
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2017	01 Mar 2017
10-K	Open 10-K document \| Open XBRL data	View SEC filing for 10-K	10-K	09 Feb 2017	31 Dec 2016	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	09 Feb 2017	06 Feb 2017	001-12691
SC 13G/A	Open SC 13G/A document	View SEC filing for SC 13G/A	SEC SCHEDULE 13G	10 Jan 2017		005-41602
SC 13G	Open SC 13G document	View SEC filing for SC 13G	SC 13G	05 Jan 2017		005-41602
8-K	Open 8-K document	View SEC filing for 8-K	8-K	22 Dec 2016	22 Dec 2016	001-12691
424B5	Open 424B5 document	View SEC filing for 424B5	424B5	22 Dec 2016		333-213769
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	22 Dec 2016	21 Dec 2016
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	21 Dec 2016	19 Dec 2016
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	05 Dec 2016	01 Dec 2016
EFFECT	Open EFFECT document	View SEC filing for EFFECT		02 Dec 2016		333-213769
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	02 Dec 2016	01 Dec 2016
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	02 Dec 2016	01 Dec 2016
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	02 Dec 2016	01 Dec 2016
CORRESP	Open CORRESP document	View SEC filing for CORRESP		30 Nov 2016
UPLOAD	Open UPLOAD document	View SEC filing for UPLOAD		29 Nov 2016
S-3/A	Open S-3/A document	View SEC filing for S-3/A	S-3/A	23 Nov 2016		333-213769
8-K	Open 8-K document \| Open XBRL data	View SEC filing for 8-K	8-K	23 Nov 2016	23 Nov 2016	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	18 Nov 2016	16 Nov 2016
8-K	Open 8-K document	View SEC filing for 8-K	8-K	18 Nov 2016	18 Nov 2016	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	09 Nov 2016	07 Nov 2016
SC 13D/A	Open SC 13D/A document	View SEC filing for SC 13D/A	SC 13D AMENDMENT NO. 8	07 Nov 2016		005-41602
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	07 Nov 2016	03 Nov 2016
CORRESP	Open CORRESP document	View SEC filing for CORRESP		03 Nov 2016
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Nov 2016	01 Nov 2016
10-Q	Open 10-Q document \| Open XBRL data	View SEC filing for 10-Q	10-Q	03 Nov 2016	30 Sep 2016	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	03 Nov 2016	02 Nov 2016	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	01 Nov 2016	28 Oct 2016
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	28 Oct 2016	26 Oct 2016
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	27 Oct 2016	25 Oct 2016
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	25 Oct 2016	21 Oct 2016
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	21 Oct 2016	19 Oct 2016
UPLOAD	Open UPLOAD document	View SEC filing for UPLOAD		21 Oct 2016
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	19 Oct 2016	17 Oct 2016
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	17 Oct 2016	13 Oct 2016
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	13 Oct 2016	11 Oct 2016
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	11 Oct 2016	06 Oct 2016
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	06 Oct 2016	04 Oct 2016
SC 13D/A	Open SC 13D/A document	View SEC filing for SC 13D/A	SC 13D/A	05 Oct 2016		005-41602
4/A	Open 4/A document	View SEC filing for 4/A	FORM 4/A SUBMISSION	05 Oct 2016	30 Sep 2016
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	04 Oct 2016	30 Sep 2016
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	30 Sep 2016	28 Sep 2016
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	28 Sep 2016	26 Sep 2016
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	26 Sep 2016	22 Sep 2016
S-3	Open S-3 document	View SEC filing for S-3	S-3	23 Sep 2016		333-213769
8-K	Open 8-K document	View SEC filing for 8-K	8-K	23 Sep 2016	23 Sep 2016	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	22 Sep 2016	20 Sep 2016
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	20 Sep 2016	16 Sep 2016
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	16 Sep 2016	14 Sep 2016
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	14 Sep 2016	12 Sep 2016
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	12 Sep 2016	08 Sep 2016
SC 13D/A	Open SC 13D/A document	View SEC filing for SC 13D/A	SC 13D/A	12 Sep 2016		005-41602
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	08 Sep 2016	06 Sep 2016
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	06 Sep 2016	01 Sep 2016
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	01 Sep 2016	30 Aug 2016
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	30 Aug 2016	26 Aug 2016
10-Q	Open 10-Q document \| Open XBRL data	View SEC filing for 10-Q	10-Q	04 Aug 2016	30 Jun 2016	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	04 Aug 2016	04 Aug 2016	001-12691
4/A	Open 4/A document	View SEC filing for 4/A	FORM 4/A SUBMISSION	06 Jul 2016	30 Jun 2016
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	30 Jun 2016	16 Jun 2016
10-K/A	Open 10-K/A document	View SEC filing for 10-K/A	10-K/A AMENDMENT NO. 2	27 Jun 2016	31 Dec 2015	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	02 Jun 2016	01 Jun 2016
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	02 Jun 2016	01 Jun 2016
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	02 Jun 2016	01 Jun 2016
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	02 Jun 2016	01 Jun 2016
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	02 Jun 2016	01 Jun 2016
8-K	Open 8-K document	View SEC filing for 8-K	8-K	02 Jun 2016	02 Jun 2016	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	02 Jun 2016	01 Jun 2016
SD	Open SD document	View SEC filing for SD	SD	23 May 2016		001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	18 May 2016	18 May 2016	001-12691
10-Q	Open 10-Q document \| Open XBRL data	View SEC filing for 10-Q	10-Q	05 May 2016	31 Mar 2016	001-12691
8-K	Open 8-K document \| Open XBRL data	View SEC filing for 8-K	8-K	05 May 2016	05 May 2016	001-12691
D	Open D document	View SEC filing for D		03 May 2016		021-262498
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	29 Apr 2016	28 Apr 2016
8-K	Open 8-K document \| Open XBRL data	View SEC filing for 8-K	8-K	28 Apr 2016	28 Apr 2016	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	22 Apr 2016	20 Apr 2016	001-12691
DEF 14A	Open DEF 14A document	View SEC filing for DEF 14A	DEF 14A	14 Apr 2016	18 May 2016	001-12691
8-K	Open 8-K document \| Open XBRL data	View SEC filing for 8-K	8-K	12 Apr 2016	12 Apr 2016	001-12691
8-K	Open 8-K document \| Open XBRL data	View SEC filing for 8-K	8-K	28 Mar 2016	28 Mar 2016	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	17 Mar 2016	15 Mar 2016
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	16 Mar 2016	15 Mar 2016
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	15 Mar 2016	15 Mar 2016
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	14 Mar 2016	10 Mar 2016
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	11 Mar 2016	09 Mar 2016
8-K	Open 8-K document	View SEC filing for 8-K	8-K	04 Mar 2016	04 Mar 2016	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2016	01 Mar 2016
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2016	01 Mar 2016
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2016	01 Mar 2016
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2016	01 Mar 2016
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2016	01 Mar 2016
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2016	01 Mar 2016
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2016	01 Mar 2016
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2016	01 Mar 2016
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2016	01 Mar 2016
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2016	01 Mar 2016
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2016	01 Mar 2016
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2016	01 Mar 2016
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	02 Mar 2016	01 Mar 2016
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	02 Mar 2016	01 Mar 2016
8-K	Open 8-K document	View SEC filing for 8-K	8-K SUPPORT AGREEMENT	29 Feb 2016	29 Feb 2016	001-12691
S-8	Open S-8 document	View SEC filing for S-8	S-8 2013 LTIP SHARES	25 Feb 2016		333-209707
8-K	Open 8-K document	View SEC filing for 8-K	8-K	16 Feb 2016	16 Feb 2016	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	16 Feb 2016	16 Feb 2016	001-12691
10-K/A	Open 10-K/A document	View SEC filing for 10-K/A	10-K/A	12 Feb 2016	31 Dec 2015	001-12691
5	Open 5 document	View SEC filing for 5	FORM 5 SUBMISSION	12 Feb 2016	31 Dec 2015
5	Open 5 document	View SEC filing for 5	FORM 5 SUBMISSION	12 Feb 2016	31 Dec 2015
10-K	Open 10-K document \| Open XBRL data	View SEC filing for 10-K	10-K	11 Feb 2016	31 Dec 2015	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	11 Feb 2016	11 Feb 2016	001-12691
SC 13G/A	Open SC 13G/A document	View SEC filing for SC 13G/A		10 Feb 2016		005-41602
SC 13G/A	Open SC 13G/A document	View SEC filing for SC 13G/A	SEC SCHEDULE 13G	05 Feb 2016		005-41602
8-K	Open 8-K document	View SEC filing for 8-K	8-K	04 Feb 2016	04 Feb 2016	001-12691
DEF 14A	Open DEF 14A document	View SEC filing for DEF 14A	DEF 14A	21 Dec 2015	01 Feb 2016	001-12691
SC 13G/A	Open SC 13G/A document	View SEC filing for SC 13G/A		10 Dec 2015		005-41602
PRE 14A	Open PRE 14A document	View SEC filing for PRE 14A	PRE 14A	08 Dec 2015	01 Feb 2016	001-12691
SC 13D/A	Open SC 13D/A document	View SEC filing for SC 13D/A	SC 13D/A	08 Dec 2015		005-41602
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Dec 2015	01 Dec 2015
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Dec 2015	01 Dec 2015
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Dec 2015	01 Dec 2015
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	23 Nov 2015	20 Nov 2015
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	20 Nov 2015	19 Nov 2015
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	20 Nov 2015	19 Nov 2015
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	19 Nov 2015	19 Nov 2015
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	19 Nov 2015	17 Nov 2015
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	19 Nov 2015	19 Nov 2015
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	18 Nov 2015	17 Nov 2015
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	18 Nov 2015	17 Nov 2015
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	18 Nov 2015	17 Nov 2015
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	17 Nov 2015	13 Nov 2015
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	13 Nov 2015	10 Nov 2015
10-Q	Open 10-Q document \| Open XBRL data	View SEC filing for 10-Q	10-Q	05 Nov 2015	30 Sep 2015	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	05 Nov 2015	04 Nov 2015	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	05 Nov 2015	04 Nov 2015	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	02 Sep 2015	02 Sep 2015	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	17 Aug 2015	14 Aug 2015	001-12691
10-Q	Open 10-Q document \| Open XBRL data	View SEC filing for 10-Q	10-Q	06 Aug 2015	30 Jun 2015	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	06 Aug 2015	05 Aug 2015	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	02 Jul 2015	02 Jul 2015	001-12691
UPLOAD	Open UPLOAD document	View SEC filing for UPLOAD		24 Jun 2015
CORRESP	Open CORRESP document	View SEC filing for CORRESP		18 Jun 2015
UPLOAD	Open UPLOAD document	View SEC filing for UPLOAD		12 Jun 2015
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	02 Jun 2015	01 Jun 2015
SD	Open SD document	View SEC filing for SD	SD	01 Jun 2015		001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	27 May 2015	26 May 2015
8-K	Open 8-K document	View SEC filing for 8-K	8-K ANNUAL MEETING	20 May 2015	20 May 2015	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	18 May 2015	15 May 2015
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	15 May 2015	13 May 2015
10-Q	Open 10-Q document \| Open XBRL data	View SEC filing for 10-Q	10-Q	07 May 2015	31 Mar 2015	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	07 May 2015	06 May 2015	001-12691
10-K/A	Open 10-K/A document	View SEC filing for 10-K/A	10-K/A	24 Apr 2015	31 Dec 2014	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	24 Apr 2015	24 Apr 2015	001-12691
ARS	Open ARS document	View SEC filing for ARS	AUTO-GENERATED PAPER DOCUMENT	16 Apr 2015	31 Dec 2014	001-12691
DEF 14A	Open DEF 14A document	View SEC filing for DEF 14A	DEF 14A	14 Apr 2015	20 May 2015	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2015	01 Mar 2015
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2015	01 Mar 2015
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2015	01 Mar 2015
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2015	01 Mar 2015
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2015	01 Mar 2015
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2015	01 Mar 2015
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2015	01 Mar 2015
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2015	01 Mar 2015
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2015	01 Mar 2015
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2015	01 Mar 2015
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2015	01 Mar 2015
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2015	01 Mar 2015
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2015	01 Mar 2015
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Mar 2015	01 Mar 2015
8-K	Open 8-K document	View SEC filing for 8-K	8-K 2015 ANNUAL GRANTS NEOS	03 Mar 2015	03 Mar 2015	001-12691
10-K	Open 10-K document \| Open XBRL data	View SEC filing for 10-K	10-K	17 Feb 2015	31 Dec 2014	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	12 Feb 2015	11 Feb 2015	001-12691
SC 13G	Open SC 13G document	View SEC filing for SC 13G		10 Feb 2015		005-41602
SC 13G/A	Open SC 13G/A document	View SEC filing for SC 13G/A	ION GEOPHYSICAL CORPORATION 12312014	03 Feb 2015		005-41602
SC 13G/A	Open SC 13G/A document	View SEC filing for SC 13G/A		26 Jan 2015		005-41602
5	Open 5 document	View SEC filing for 5	FORM 5 SUBMISSION	08 Jan 2015	31 Dec 2014
8-K	Open 8-K document	View SEC filing for 8-K	8-K	04 Dec 2014	04 Dec 2014	001-12691
4/A	Open 4/A document	View SEC filing for 4/A	FORM 4/A SUBMISSION	03 Dec 2014	01 Dec 2014
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Dec 2014	01 Dec 2014
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Dec 2014	01 Dec 2014
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Dec 2014	01 Dec 2014
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Dec 2014	01 Dec 2014
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Dec 2014	01 Dec 2014
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Dec 2014	01 Dec 2014
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Dec 2014	01 Dec 2014
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	19 Nov 2014	13 Nov 2014
8-K	Open 8-K document	View SEC filing for 8-K	8-K	13 Nov 2014	13 Nov 2014	001-12691
10-Q	Open 10-Q document \| Open XBRL data	View SEC filing for 10-Q	10-Q	06 Nov 2014	30 Sep 2014	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	06 Nov 2014	05 Nov 2014	001-12691
3	Open 3 document	View SEC filing for 3	FORM 3 SUBMISSION	14 Oct 2014	06 Oct 2014
8-K	Open 8-K document	View SEC filing for 8-K	8-K	26 Sep 2014	26 Sep 2014	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	16 Sep 2014	09 May 2014
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Sep 2014	03 Sep 2014
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	02 Sep 2014	02 Sep 2014
8-K	Open 8-K document	View SEC filing for 8-K	8-K	02 Sep 2014	02 Sep 2014	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	26 Aug 2014	26 Aug 2014	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	25 Aug 2014	25 Aug 2014	001-12691
10-Q	Open 10-Q document \| Open XBRL data	View SEC filing for 10-Q	10-Q	07 Aug 2014	30 Jun 2014	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	07 Aug 2014	06 Aug 2014	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Jun 2014	01 Jun 2014
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Jun 2014	01 Jun 2014
SD	Open SD document	View SEC filing for SD	SD	02 Jun 2014		001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	21 May 2014	21 May 2014	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	08 May 2014	06 May 2014
8-K	Open 8-K document	View SEC filing for 8-K	8-K	08 May 2014	07 May 2014	001-12691
10-Q	Open 10-Q document \| Open XBRL data	View SEC filing for 10-Q	10-Q	01 May 2014	31 Mar 2014	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	01 May 2014	30 Apr 2014	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	01 May 2014	30 Apr 2014	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	21 Apr 2014	21 Apr 2014	001-12691
ARS	Open ARS document	View SEC filing for ARS	AUTO-GENERATED PAPER DOCUMENT	18 Apr 2014	31 Dec 2013	001-12691
DEF 14A	Open DEF 14A document	View SEC filing for DEF 14A	DEF 14A	15 Apr 2014	21 May 2014	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	10 Apr 2014	09 Apr 2014	001-12691
424B3	Open 424B3 document	View SEC filing for 424B3	424B3	10 Apr 2014		333-194110
EFFECT	Open EFFECT document	View SEC filing for EFFECT		09 Apr 2014		333-194110
CORRESP	Open CORRESP document	View SEC filing for CORRESP		07 Apr 2014
S-4/A	Open S-4/A document	View SEC filing for S-4/A	S-4/A	28 Mar 2014		333-194110
CORRESP	Open CORRESP document	View SEC filing for CORRESP		28 Mar 2014
10-K/A	Open 10-K/A document	View SEC filing for 10-K/A	FORM 10-K/A AMENDMENT NO. 1	28 Mar 2014	31 Dec 2013	001-12691
UPLOAD	Open UPLOAD document	View SEC filing for UPLOAD		21 Mar 2014
8-K	Open 8-K document	View SEC filing for 8-K	8-K	20 Mar 2014	19 Mar 2014	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	13 Mar 2014	13 Mar 2014	001-12691
SC 13G/A	Open SC 13G/A document	View SEC filing for SC 13G/A	SC 13G/A	11 Mar 2014		005-41602
SC 13G/A	Open SC 13G/A document	View SEC filing for SC 13G/A		10 Mar 2014		005-41602
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	04 Mar 2014	01 Mar 2014
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	04 Mar 2014	01 Mar 2014
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	04 Mar 2014	01 Mar 2014
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	04 Mar 2014	01 Mar 2014
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	04 Mar 2014	01 Mar 2014
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	04 Mar 2014	01 Mar 2014
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	04 Mar 2014	01 Mar 2014
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	04 Mar 2014	01 Mar 2014
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	04 Mar 2014	01 Mar 2014
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	04 Mar 2014	01 Mar 2014
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	04 Mar 2014	01 Mar 2014
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	04 Mar 2014	01 Mar 2014
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	04 Mar 2014	01 Mar 2014
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	04 Mar 2014	01 Mar 2014
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	04 Mar 2014	01 Mar 2014
8-K	Open 8-K document	View SEC filing for 8-K	8-K	03 Mar 2014	01 Mar 2014	001-12691
CORRESP	Open CORRESP document	View SEC filing for CORRESP		25 Feb 2014
S-4	Open S-4 document	View SEC filing for S-4	S-4	25 Feb 2014		333-194110
10-K	Open 10-K document \| Open XBRL data	View SEC filing for 10-K	10-K	24 Feb 2014	31 Dec 2013	001-12691
SC 13G/A	Open SC 13G/A document	View SEC filing for SC 13G/A	DISCLOSURE DOCUMENT	14 Feb 2014		005-41602
8-K	Open 8-K document	View SEC filing for 8-K	8-K	13 Feb 2014	12 Feb 2014	001-12691
SC 13G/A	Open SC 13G/A document	View SEC filing for SC 13G/A	ION GEOPHYSICAL CORPORATION	05 Feb 2014		005-41602
8-K	Open 8-K document	View SEC filing for 8-K	8-K	29 Jan 2014	29 Jan 2014	001-12691
SC 13G/A	Open SC 13G/A document	View SEC filing for SC 13G/A		29 Jan 2014		005-41602
SC 13G/A	Open SC 13G/A document	View SEC filing for SC 13G/A		28 Jan 2014		005-41602
SC 13G	Open SC 13G document	View SEC filing for SC 13G	SC 13G	10 Jan 2014		005-41602
3	Open 3 document	View SEC filing for 3	FORM 3 SUBMISSION	08 Jan 2014	30 Dec 2013
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	16 Dec 2013	13 Dec 2013
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	13 Dec 2013	13 Dec 2013
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	13 Dec 2013	13 Dec 2013
SC 13G/A	Open SC 13G/A document	View SEC filing for SC 13G/A	ION GEOPYSICAL CORPORATION11302013	09 Dec 2013		005-41602
8-K	Open 8-K document	View SEC filing for 8-K	8-K	04 Dec 2013	01 Dec 2013	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Dec 2013	01 Dec 2013
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Dec 2013	01 Dec 2013
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Dec 2013	01 Dec 2013
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Dec 2013	01 Dec 2013
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Dec 2013	01 Dec 2013
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Dec 2013	01 Dec 2013
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Dec 2013	01 Dec 2013
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Dec 2013	01 Dec 2013
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Dec 2013	01 Dec 2013
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Dec 2013	01 Dec 2013
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Dec 2013	30 Oct 2013
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Dec 2013	01 Dec 2013
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Dec 2013	01 Dec 2013
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Dec 2013	01 Dec 2013
8-K	Open 8-K document	View SEC filing for 8-K	8-K	18 Nov 2013	18 Nov 2013	001-12691
10-Q	Open 10-Q document \| Open XBRL data	View SEC filing for 10-Q	10-Q	15 Nov 2013	30 Sep 2013	001-12691
10-Q/A	Open 10-Q/A document \| Open XBRL data	View SEC filing for 10-Q/A	10-Q/A	15 Nov 2013	30 Jun 2013	001-12691
10-Q/A	Open 10-Q/A document \| Open XBRL data	View SEC filing for 10-Q/A	10-Q/A	15 Nov 2013	31 Mar 2013	001-12691
NT 10-Q	Open NT 10-Q document	View SEC filing for NT 10-Q	NT 10-Q	12 Nov 2013	30 Sep 2013	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	12 Nov 2013	12 Nov 2013	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	07 Nov 2013	06 Nov 2013	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	25 Oct 2013	24 Oct 2013	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	30 Sep 2013	30 Sep 2013	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	27 Sep 2013	27 Sep 2013	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	16 Sep 2013	13 Sep 2013
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	13 Sep 2013	13 Sep 2013
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	04 Sep 2013	01 Sep 2013
8-K	Open 8-K document	View SEC filing for 8-K	8-K	04 Sep 2013	03 Sep 2013	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	27 Aug 2013	26 Aug 2013
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	15 Aug 2013	13 Aug 2013
S-8	Open S-8 document	View SEC filing for S-8	S-8	08 Aug 2013		333-190474
10-Q	Open 10-Q document \| Open XBRL data	View SEC filing for 10-Q	10-Q	08 Aug 2013	30 Jun 2013	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	08 Aug 2013	07 Aug 2013	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	02 Aug 2013	01 Aug 2013
8-K	Open 8-K document	View SEC filing for 8-K	8-K	15 Jul 2013	15 Jul 2013	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	20 Jun 2013	19 Jun 2013	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	17 Jun 2013	13 Jun 2013
4/A	Open 4/A document	View SEC filing for 4/A	FORM 4/A SUBMISSION	17 Jun 2013	12 Jun 2013
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	12 Jun 2013	10 Jun 2013
SC 13G/A	Open SC 13G/A document	View SEC filing for SC 13G/A	ION GEOPHYSICAL CORPORATION	10 Jun 2013		005-41602
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	06 Jun 2013	05 Jun 2013
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	04 Jun 2013	01 Jun 2013
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	04 Jun 2013	01 Jun 2013
3	Open 3 document	View SEC filing for 3	FORM 3 SUBMISSION	04 Jun 2013	29 May 2013
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	04 Jun 2013	01 Jun 2013
8-K	Open 8-K document	View SEC filing for 8-K	8-K	28 May 2013	22 May 2013	001-12691
3	Open 3 document	View SEC filing for 3	FORM 3 SUBMISSION	21 May 2013	14 May 2013
8-K	Open 8-K document	View SEC filing for 8-K	8-K	15 May 2013	15 May 2013	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	14 May 2013	10 May 2013
DEFA14A	Open DEFA14A document	View SEC filing for DEFA14A	DEFA14A	14 May 2013		001-12691
8-K	Open 8-K document	View SEC filing for 8-K	CURRENT REPORT OF MATERIAL EVENTS OR CORPORATE CHANGES	13 May 2013	08 May 2013	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	07 May 2013	20 Feb 2013
8-K	Open 8-K document	View SEC filing for 8-K	CURRENT REPORT OF MATERIAL EVENTS OR CORPORATE CHANGES	01 May 2013	01 May 2013	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	01 May 2013	30 Apr 2013	001-12691
10-Q	Open 10-Q document \| Open XBRL data	View SEC filing for 10-Q	10-Q	01 May 2013	31 Mar 2013	001-12691
ARS	Open ARS document	View SEC filing for ARS	AUTO-GENERATED PAPER DOCUMENT	18 Apr 2013	31 Dec 2012	001-12691
10-K/A	Open 10-K/A document	View SEC filing for 10-K/A	FORM 10-K AMENDMENT NO. 1	17 Apr 2013	31 Dec 2012	001-12691
DEF 14A	Open DEF 14A document	View SEC filing for DEF 14A	DEF 14A	16 Apr 2013	22 May 2013	001-12691
SC 13G/A	Open SC 13G/A document	View SEC filing for SC 13G/A		29 Mar 2013		005-41602
8-K	Open 8-K document	View SEC filing for 8-K	8-K	25 Mar 2013	25 Mar 2013	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	18 Mar 2013	18 Mar 2013	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	15 Mar 2013	14 Mar 2013
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	20 Feb 2013	19 Feb 2013
10-K	Open 10-K document \| Open XBRL data	View SEC filing for 10-K	10-K	19 Feb 2013	31 Dec 2012	001-12691
SC 13G/A	Open SC 13G/A document	View SEC filing for SC 13G/A	DISCLOSURE DOCUMENT	14 Feb 2013		005-41602
8-K	Open 8-K document	View SEC filing for 8-K	8-K	14 Feb 2013	11 Feb 2013	001-12691
SC 13G/A	Open SC 13G/A document	View SEC filing for SC 13G/A		13 Feb 2013		005-41602
SC 13G	Open SC 13G document	View SEC filing for SC 13G	ION GEOPHYSICAL CORPORATION	13 Feb 2013		005-41602
SC 13G/A	Open SC 13G/A document	View SEC filing for SC 13G/A		06 Feb 2013		005-41602
5	Open 5 document	View SEC filing for 5	FORM 5 SUBMISSION	24 Jan 2013	31 Dec 2012
5	Open 5 document	View SEC filing for 5	FORM 5 SUBMISSION	24 Jan 2013	31 Dec 2012
SC 13G/A	Open SC 13G/A document	View SEC filing for SC 13G/A	SCHEDULE 13G/A	08 Jan 2013		005-41602
8-K	Open 8-K document	View SEC filing for 8-K	8-K	04 Jan 2013	31 Dec 2012	001-12691
3	Open 3 document	View SEC filing for 3	FORM 3 SUBMISSION	06 Dec 2012	30 Nov 2012
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	04 Dec 2012	01 Dec 2012
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	04 Dec 2012	01 Dec 2012
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	04 Dec 2012	01 Dec 2012
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	04 Dec 2012	01 Dec 2012
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	04 Dec 2012	01 Dec 2012
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	04 Dec 2012	01 Dec 2012
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	04 Dec 2012	01 Dec 2012
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	04 Dec 2012	01 Dec 2012
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	04 Dec 2012	01 Dec 2012
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	04 Dec 2012	01 Dec 2012
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	04 Dec 2012	01 Dec 2012
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	04 Dec 2012	01 Dec 2012
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	04 Dec 2012	01 Dec 2012
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	04 Dec 2012	01 Dec 2012
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	04 Dec 2012	01 Dec 2012
8-K	Open 8-K document	View SEC filing for 8-K	FORM 8-K	03 Dec 2012	01 Dec 2012	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	15 Nov 2012	14 Nov 2012
10-Q	Open 10-Q document \| Open XBRL data	View SEC filing for 10-Q	10-Q	09 Nov 2012	30 Sep 2012	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	FORM 8-K	09 Nov 2012	07 Nov 2012	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	8-K	06 Nov 2012	06 Nov 2012	001-12691
UPLOAD	Open UPLOAD document	View SEC filing for UPLOAD		25 Oct 2012
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	24 Oct 2012	23 Oct 2012
CORRESP	Open CORRESP document	View SEC filing for CORRESP		26 Sep 2012
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	17 Sep 2012	14 Sep 2012
UPLOAD	Open UPLOAD document	View SEC filing for UPLOAD		12 Sep 2012
8-K	Open 8-K document	View SEC filing for 8-K	FORM 8-K	11 Sep 2012	11 Sep 2012	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	10 Sep 2012	21 May 2012
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	06 Sep 2012	04 Sep 2012
8-K	Open 8-K document	View SEC filing for 8-K	FORM 8-K	20 Aug 2012	20 Aug 2012	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	FORM 8-K	17 Aug 2012	16 Aug 2012	001-12691
SC 13G/A	Open SC 13G/A document	View SEC filing for SC 13G/A		10 Aug 2012		005-41602
8-K	Open 8-K document	View SEC filing for 8-K	FORM 8-K	08 Aug 2012	07 Aug 2012	001-12691
10-Q	Open 10-Q document \| Open XBRL data	View SEC filing for 10-Q	FORM 10-Q	07 Aug 2012	30 Jun 2012	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	25 Jun 2012	22 Jun 2012
8-K	Open 8-K document	View SEC filing for 8-K	FORM 8-K	30 May 2012	29 May 2012	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	FORM 8-K	23 May 2012	23 May 2012	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	16 May 2012	14 May 2012
SC 13G	Open SC 13G document	View SEC filing for SC 13G	SCHEDULE 13G	11 May 2012		005-41602
10-Q	Open 10-Q document \| Open XBRL data	View SEC filing for 10-Q	FORM 10-Q	03 May 2012	31 Mar 2012	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	FORM 8-K	03 May 2012	02 May 2012	001-12691
ARS	Open ARS document	View SEC filing for ARS	AUTO-GENERATED PAPER DOCUMENT	25 Apr 2012	31 Dec 2011	001-12691
DEF 14A	Open DEF 14A document	View SEC filing for DEF 14A	DEFINITIVE PROXY STATEMENT	20 Apr 2012	23 May 2012	001-12691
SC 13G/A	Open SC 13G/A document	View SEC filing for SC 13G/A		10 Apr 2012		005-41602
10-K/A	Open 10-K/A document	View SEC filing for 10-K/A	FORM 10-K AMENDMENT NO. 1	26 Mar 2012	31 Dec 2011	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	14 Mar 2012	12 Mar 2012
8-K	Open 8-K document	View SEC filing for 8-K	FORM 8-K	13 Mar 2012	13 Mar 2012	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	FORM 8-K	09 Mar 2012	09 Mar 2012	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	05 Mar 2012	01 Mar 2012
10-K	Open 10-K document \| Open XBRL data	View SEC filing for 10-K	FORM 10-K	24 Feb 2012	31 Dec 2011	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	FORM 8-K	16 Feb 2012	15 Feb 2012	001-12691
SC 13G/A	Open SC 13G/A document	View SEC filing for SC 13G/A		14 Feb 2012		005-41602
SC 13G	Open SC 13G document	View SEC filing for SC 13G	DISCLOSURE DOCUMENT	14 Feb 2012		005-41602
15-12B	Open 15-12B document	View SEC filing for 15-12B	FORM 15-12B	13 Feb 2012		001-12691
8-K	Open 8-K document	View SEC filing for 8-K	FORM 8-K	13 Feb 2012	10 Feb 2012	001-12691
SC 13G/A	Open SC 13G/A document	View SEC filing for SC 13G/A		13 Feb 2012		005-41602
25-NSE	Open 25-NSE document	View SEC filing for 25-NSE		03 Feb 2012		001-12691
SC 13G/A	Open SC 13G/A document	View SEC filing for SC 13G/A		25 Jan 2012		005-41602
8-K	Open 8-K document	View SEC filing for 8-K	FORM 8-K	03 Jan 2012	01 Jan 2012	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	FORM 8-K	07 Dec 2011	05 Dec 2011	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	05 Dec 2011	01 Dec 2011
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	05 Dec 2011	01 Dec 2011
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	05 Dec 2011	01 Dec 2011
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	05 Dec 2011	04 Mar 2011
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	05 Dec 2011	01 Dec 2011
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	05 Dec 2011	12 Apr 2011
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	05 Dec 2011	01 Dec 2011
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	05 Dec 2011	01 Dec 2011
3/A	Open 3/A document	View SEC filing for 3/A	FORM 3/A SUBMISSION	05 Dec 2011	16 Dec 2010
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	05 Dec 2011	01 Dec 2011
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	05 Dec 2011	01 Dec 2011
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	05 Dec 2011	01 Dec 2011
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	05 Dec 2011	01 Dec 2011
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	05 Dec 2011	01 Dec 2011
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	05 Dec 2011	01 Dec 2011
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	05 Dec 2011	01 Dec 2011
3	Open 3 document	View SEC filing for 3	FORM 3 SUBMISSION	02 Dec 2011	28 Nov 2011
8-K	Open 8-K document	View SEC filing for 8-K	FORM 8-K	01 Dec 2011	28 Nov 2011	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	FORM 8-K	14 Nov 2011	14 Nov 2011	001-12691
10-Q	Open 10-Q document \| Open XBRL data	View SEC filing for 10-Q	FORM 10-Q	03 Nov 2011	30 Sep 2011	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	FORM 8-K	02 Nov 2011	02 Nov 2011	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	FORM 8-K	04 Oct 2011	04 Oct 2011	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	07 Sep 2011	06 Sep 2011
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	06 Sep 2011	26 Aug 2011
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	06 Sep 2011	02 Sep 2011
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	06 Sep 2011	01 Sep 2011
8-K	Open 8-K document	View SEC filing for 8-K	FORM 8-K	02 Sep 2011	30 Aug 2011	001-12691
3/A	Open 3/A document	View SEC filing for 3/A	FORM 3/A SUBMISSION	19 Aug 2011	16 Dec 2010
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	08 Aug 2011	08 Aug 2011
S-8	Open S-8 document	View SEC filing for S-8	FORM S-8	04 Aug 2011		333-176046
10-Q	Open 10-Q document \| Open XBRL data	View SEC filing for 10-Q	FORM 10-Q	04 Aug 2011	30 Jun 2011	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	FORM 8-K	03 Aug 2011	02 Aug 2011	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	FORM 8-K	02 Aug 2011	02 Aug 2011	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	FORM 8-K	13 Jul 2011	13 Jul 2011	001-12691
10-K/A	Open 10-K/A document	View SEC filing for 10-K/A	FORM 10-K/A	17 Jun 2011	31 Dec 2010	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	16 Jun 2011	15 Jun 2011
8-K	Open 8-K document	View SEC filing for 8-K	FORM 8-K	27 May 2011	27 May 2011	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	24 May 2011	23 May 2011
8-K	Open 8-K document	View SEC filing for 8-K	FORM 8-K	20 May 2011	20 May 2011	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	12 May 2011	11 May 2011
DEFR14A	Open DEFR14A document	View SEC filing for DEFR14A	DEFR14A	12 May 2011		001-12691
10-Q	Open 10-Q document	View SEC filing for 10-Q	FORM 10-Q	05 May 2011	31 Mar 2011	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	FORM 8-K	04 May 2011	04 May 2011	001-12691
ARS	Open ARS document	View SEC filing for ARS	AUTO-GENERATED PAPER DOCUMENT	28 Apr 2011	31 Dec 2010	001-12691
DEF 14A	Open DEF 14A document	View SEC filing for DEF 14A	DEF 14A	21 Apr 2011	27 May 2011	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	07 Apr 2011	06 Apr 2011
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	05 Apr 2011	04 Apr 2011
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	08 Mar 2011	04 Mar 2011
8-K	Open 8-K document	View SEC filing for 8-K	FORM 8-K	03 Mar 2011	02 Mar 2011	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	02 Mar 2011	01 Mar 2011
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	02 Mar 2011	01 Mar 2011
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	02 Mar 2011	01 Mar 2011
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	02 Mar 2011	01 Mar 2011
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	02 Mar 2011	01 Mar 2011
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	02 Mar 2011	28 Feb 2011
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	01 Mar 2011	25 Feb 2011
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	01 Mar 2011	25 Feb 2011
8-K	Open 8-K document	View SEC filing for 8-K	FORM 8-K	01 Mar 2011	25 Feb 2010	001-12691
10-K	Open 10-K document	View SEC filing for 10-K	FORM 10-K	24 Feb 2011	31 Dec 2010	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	23 Feb 2011	22 Feb 2011
8-K	Open 8-K document	View SEC filing for 8-K	FORM 8-K	17 Feb 2011	11 Feb 2011	001-12691
SC 13G	Open SC 13G document	View SEC filing for SC 13G	DOC ONE	14 Feb 2011		005-41602
SC 13G/A	Open SC 13G/A document	View SEC filing for SC 13G/A	SCHEDULE 13G/A	14 Feb 2011		005-41602
SC 13G/A	Open SC 13G/A document	View SEC filing for SC 13G/A	DOC ONE	10 Feb 2011		005-41602
5	Open 5 document	View SEC filing for 5	FORM 5 SUBMISSION	08 Feb 2011	02 Dec 2010
SC 13G/A	Open SC 13G/A document	View SEC filing for SC 13G/A		04 Feb 2011		005-41602
4/A	Open 4/A document	View SEC filing for 4/A	FORM 4/A SUBMISSION	03 Feb 2011	01 Dec 2010
SC 13G/A	Open SC 13G/A document	View SEC filing for SC 13G/A		20 Jan 2011		005-41602
3	Open 3 document	View SEC filing for 3	FORM 3 SUBMISSION	04 Jan 2011	01 Jan 2011
3/A	Open 3/A document	View SEC filing for 3/A	FORM 3/A SUBMISSION	23 Dec 2010	16 Dec 2010
3	Open 3 document	View SEC filing for 3	FORM 3 SUBMISSION	23 Dec 2010	16 Dec 2010
3	Open 3 document	View SEC filing for 3	FORM 3 SUBMISSION	23 Dec 2010	16 Dec 2010
3	Open 3 document	View SEC filing for 3	FORM 3 SUBMISSION	23 Dec 2010	16 Dec 2010
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	14 Dec 2010	13 Dec 2010
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	14 Dec 2010	10 Dec 2010
8-K	Open 8-K document	View SEC filing for 8-K	FORM 8-K	10 Dec 2010	10 Dec 2010	001-12691
3	Open 3 document	View SEC filing for 3	FORM 3 SUBMISSION	07 Dec 2010	02 Dec 2010
3	Open 3 document	View SEC filing for 3	FORM 3 SUBMISSION	07 Dec 2010	02 Dec 2010
8-K	Open 8-K document	View SEC filing for 8-K	FORM 8-K	06 Dec 2010	01 Dec 2010	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Dec 2010	01 Dec 2010
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Dec 2010	02 Dec 2010
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Dec 2010	01 Dec 2010
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Dec 2010	01 Dec 2010
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Dec 2010	01 Dec 2010
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Dec 2010	01 Dec 2010
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Dec 2010	01 Dec 2010
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Dec 2010	01 Dec 2010
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Dec 2010	01 Dec 2010
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Dec 2010	29 Nov 2010
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Dec 2010	01 Dec 2010
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Dec 2010	01 Dec 2010
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	03 Dec 2010	01 Dec 2010
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	01 Dec 2010	29 Nov 2010
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	01 Dec 2010	29 Nov 2010
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	01 Dec 2010	29 Nov 2010
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	29 Nov 2010	24 Nov 2010
8-K	Open 8-K document	View SEC filing for 8-K	FORM 8-K	22 Nov 2010	16 Nov 2010	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	22 Nov 2010	19 Nov 2010
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	18 Nov 2010	16 Nov 2010
8-K	Open 8-K document	View SEC filing for 8-K	FORM 8-K	16 Nov 2010	15 Nov 2010	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	12 Nov 2010	11 Nov 2010
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	12 Nov 2010	09 Nov 2010
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	09 Nov 2010	09 Nov 2010
8-K	Open 8-K document	View SEC filing for 8-K	FORM 8-K	08 Nov 2010	05 Nov 2010	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	FORM 8-K	04 Nov 2010	04 Nov 2010	001-12691
10-Q	Open 10-Q document	View SEC filing for 10-Q	FORM 10-Q	04 Nov 2010	30 Sep 2010	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	FORM 8-K	04 Nov 2010	03 Nov 2010	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	FORM 8-K	05 Oct 2010	05 Oct 2010	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	FORM 8-K	13 Sep 2010	13 Sep 2010	001-12691
10-Q	Open 10-Q document	View SEC filing for 10-Q	FORM 10-Q	05 Aug 2010	30 Jun 2010	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	FORM 8-K	04 Aug 2010	04 Aug 2010	001-12691
EFFECT	Open EFFECT document	View SEC filing for EFFECT		15 Jul 2010		333-166200
424B3	Open 424B3 document	View SEC filing for 424B3	424B3	15 Jul 2010		333-166200
CORRESP	Open CORRESP document	View SEC filing for CORRESP		14 Jul 2010
UPLOAD	Open UPLOAD document	View SEC filing for UPLOAD		14 Jul 2010
CORRESP	Open CORRESP document	View SEC filing for CORRESP		13 Jul 2010
CORRESP	Open CORRESP document	View SEC filing for CORRESP		09 Jul 2010
S-3/A	Open S-3/A document	View SEC filing for S-3/A	FORM S-3/A	09 Jul 2010		333-166200
10-K/A	Open 10-K/A document	View SEC filing for 10-K/A	FORM 10-K/A	09 Jul 2010	31 Dec 2009	001-12691
S-8	Open S-8 document	View SEC filing for S-8	FORM S-8	01 Jul 2010		333-167943
UPLOAD	Open UPLOAD document	View SEC filing for UPLOAD		25 Jun 2010
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	08 Jun 2010	07 Jun 2010
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	02 Jun 2010	01 Jun 2010
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	02 Jun 2010	01 Jun 2010
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	02 Jun 2010	01 Jun 2010
CORRESP	Open CORRESP document	View SEC filing for CORRESP		01 Jun 2010
8-K	Open 8-K document	View SEC filing for 8-K	FORM 8-K	01 Jun 2010	26 May 2010	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	24 May 2010	21 May 2010
CORRESP	Open CORRESP document	View SEC filing for CORRESP		20 May 2010
8-K	Open 8-K document	View SEC filing for 8-K	FORM 8-K	20 May 2010	20 May 2010	001-12691
UPLOAD	Open UPLOAD document	View SEC filing for UPLOAD		17 May 2010
10-Q	Open 10-Q document	View SEC filing for 10-Q	FORM 10-Q	06 May 2010	31 Mar 2010	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	FORM 8-K	05 May 2010	05 May 2010	001-12691
ARS	Open ARS document	View SEC filing for ARS	AUTO-GENERATED PAPER DOCUMENT	22 Apr 2010	31 Dec 2009	001-12691
DEF 14A	Open DEF 14A document	View SEC filing for DEF 14A	DEF 14A	21 Apr 2010	26 May 2010	001-12691
S-3	Open S-3 document	View SEC filing for S-3	FORM S-3	20 Apr 2010		333-166200
8-K	Open 8-K document	View SEC filing for 8-K	FORM 8-K	12 Apr 2010	09 Apr 2010	001-12691
D/A	Open D/A document	View SEC filing for D/A		05 Apr 2010		021-86660-9F
D	Open D document	View SEC filing for D		05 Apr 2010		021-86660-9F
3	Open 3 document	View SEC filing for 3	FORM 3 SUBMISSION	05 Apr 2010	01 Apr 2010
3	Open 3 document	View SEC filing for 3	FORM 3	01 Apr 2010	25 Mar 2010
SC 13G	Open SC 13G document	View SEC filing for SC 13G	SCHEDULE 13G	01 Apr 2010		005-41602
8-K	Open 8-K document	View SEC filing for 8-K	FORM 8-K	01 Apr 2010	01 Apr 2010	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	FORM 8-K	31 Mar 2010	25 Mar 2010	001-12691
8-K	Open 8-K document	View SEC filing for 8-K	FORM 8-K	25 Mar 2010	19 Mar 2010	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	02 Mar 2010	01 Mar 2010
10-K	Open 10-K document	View SEC filing for 10-K	FORM 10-K	01 Mar 2010	31 Dec 2009	001-12691
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	24 Feb 2010	24 Feb 2010
8-K	Open 8-K document	View SEC filing for 8-K	FORM 8-K	17 Feb 2010	17 Feb 2010	001-12691
SC 13G/A	Open SC 13G/A document	View SEC filing for SC 13G/A		16 Feb 2010		005-41602
5	Open 5 document	View SEC filing for 5	FORM 5 SUBMISSION	09 Feb 2010	31 Dec 2009
8-K	Open 8-K document	View SEC filing for 8-K	FORM 8-K	01 Feb 2010	29 Jan 2010	001-12691
SC 13G	Open SC 13G document	View SEC filing for SC 13G		21 Jan 2010		005-41602
8-K	Open 8-K document	View SEC filing for 8-K	FORM 8-K	14 Jan 2010	13 Jan 2010	001-12691
SC 13G	Open SC 13G document	View SEC filing for SC 13G		08 Jan 2010		005-41602

About this filer

ION GEOPHYSICAL CORP files with the SEC under CIK 0000866609. This page aggregates EDGAR filings and related ownership activity.

Industry: Oil & Gas Field Exploration Services.

FAQ

What is a CIK?: A Central Index Key (CIK) is a unique identifier assigned by the SEC to each filer.
Why are some filings missing?: New filings appear as the SEC updates EDGAR, and older records can vary by availability.
How often is this page updated?: Updates follow new EDGAR submissions and periodic data refreshes.

ION GEOPHYSICAL CORP SEC EDGAR Filings

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