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Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material:
SEC Accession No. 0001104659-18-065424
Filing Date
2018-11-01
Accepted
2018-11-01 16:15:49
Documents
1
Effectiveness Date
2018-11-01

Document Format Files

Seq Description Document Type Size
1 DEFA14A a18-36697_3defa14a.htm DEFA14A 36765
  Complete submission text file 0001104659-18-065424.txt   37886
Mailing Address 2105 CITYWEST BLVD SUITE 100 HOUSTON TX 770422855
Business Address 2105 CITYWEST BLVD SUITE 100 HOUSTON TX 770422855 2819333339
ION GEOPHYSICAL CORP (Filer) CIK: 0000866609 (see all company filings)

IRS No.: 222286646 | State of Incorp.: DE | Fiscal Year End: 1231
Type: DEFA14A | Act: 34 | File No.: 001-12691 | Film No.: 181153942
SIC: 1382 Oil & Gas Field Exploration Services
Assistant Director 4