0001209191-15-083082.txt : 20151203 0001209191-15-083082.hdr.sgml : 20151203 20151203112155 ACCESSION NUMBER: 0001209191-15-083082 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20151201 FILED AS OF DATE: 20151203 DATE AS OF CHANGE: 20151203 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: ION GEOPHYSICAL CORP CENTRAL INDEX KEY: 0000866609 STANDARD INDUSTRIAL CLASSIFICATION: OIL AND GAS FIELD EXPLORATION SERVICES [1382] IRS NUMBER: 222286646 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 2105 CITYWEST BLVD STREET 2: SUITE 400 CITY: HOUSTON STATE: TX ZIP: 770422839 BUSINESS PHONE: 281.933.3339 MAIL ADDRESS: STREET 1: 2105 CITYWEST BLVD STREET 2: SUITE 400 CITY: HOUSTON STATE: TX ZIP: 770422839 FORMER COMPANY: FORMER CONFORMED NAME: INPUT OUTPUT INC DATE OF NAME CHANGE: 19930328 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Usher Christopher Theron CENTRAL INDEX KEY: 0001481492 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-12691 FILM NUMBER: 151266583 MAIL ADDRESS: STREET 1: 2105 CITYWEST BLVD. STREET 2: SUITE 400 CITY: HOUSTON STATE: TX ZIP: 77042-2839 4 1 doc4.xml FORM 4 SUBMISSION X0306 4 2015-12-01 0 0000866609 ION GEOPHYSICAL CORP IO 0001481492 Usher Christopher Theron 2105 CITYWEST BOULEVARD SUITE 400 HOUSTON TX 77042-2839 0 1 0 0 EVP & COO, E&P OPER OPTIMINIZA Common Stock 2015-12-01 4 M 0 5330 0.56 D 98045 D Common Stock 2015-12-01 4 M 0 2132 0.56 D 95913 D Payment of tax liability by delivering or withholding shares incident to the vesting of restricted stock. Rebecca F. Sacco, attorney-in-fact 2015-12-03