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Filing Detail
Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0001209191-12-055606
Filing Date
2012-12-04
Accepted
2012-12-04 15:01:41
Documents
1
Period of Report
2012-12-01

Document Format Files

Seq Description Document Type Size
1 FORM 4 SUBMISSION doc4.html 4  
1 FORM 4 SUBMISSION doc4.xml 4 6401
  Complete submission text file 0001209191-12-055606.txt   7914
Mailing Address 2105 CITYWEST BLVD SUITE 400 HOUSTON TX 770422839
Business Address 2105 CITYWEST BLVD SUITE 400 HOUSTON TX 770422839 281.933.3339
ION GEOPHYSICAL CORP (Issuer) CIK: 0000866609 (see all company filings)

IRS No.: 222286646 | State of Incorp.: DE | Fiscal Year End: 1231
SIC: 1382 Oil & Gas Field Exploration Services

Mailing Address ION GEOPHYSICAL CORPORATION 2105 CITYWEST BOULEVARD, STE 400 HOUSTON TX 77042-2839
Business Address
Heinlein Gregory J (Reporting) CIK: 0001335990 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-12691 | Film No.: 121240352