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Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material:
SEC Accession No. 0001437749-21-003265
Filing Date
2021-02-18
Accepted
2021-02-18 16:20:57
Documents
1

Document Format Files

Seq Description Document Type Size
1 FORM DEFA14A io20210216_defa14a.htm DEFA14A 81620
  Complete submission text file 0001437749-21-003265.txt   82710
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.: 21649796
SIC: 1382 Oil & Gas Field Exploration Services