0001209191-15-021146.txt : 20150303 0001209191-15-021146.hdr.sgml : 20150303 20150303155851 ACCESSION NUMBER: 0001209191-15-021146 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20150301 FILED AS OF DATE: 20150303 DATE AS OF CHANGE: 20150303 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: SCHWAUSCH SCOTT CENTRAL INDEX KEY: 0001577175 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-12691 FILM NUMBER: 15668922 MAIL ADDRESS: STREET 1: 2105 CITYWEST BOULEVARD, SUITE 400 CITY: HOUSTON STATE: TX ZIP: 77042-2839 4 1 doc4.xml FORM 4 SUBMISSION X0306 4 2015-03-01 0 0000866609 ION GEOPHYSICAL CORP IO 0001577175 SCHWAUSCH SCOTT 2105 CITYWEST BOULEVARD SUITE 400 HOUSTON TX 77042-2839 0 1 0 0 VP & Corp Controller Common Stock 2015-03-01 4 F 0 545 2.28 D 18078 D Payment of tax liability by delivering or withholding shares incident to the vesting of restricted stock. /s/ Rebecca F. Sacco, attorney-in-fact 2015-03-03