0001209191-13-016803.txt : 20130315 0001209191-13-016803.hdr.sgml : 20130315 20130315140634 ACCESSION NUMBER: 0001209191-13-016803 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20130314 FILED AS OF DATE: 20130315 DATE AS OF CHANGE: 20130315 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: MORRISON MICHAEL L CENTRAL INDEX KEY: 0001228756 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-12691 FILM NUMBER: 13693373 MAIL ADDRESS: STREET 1: ION GEOPHYSICAL CORPORATION STREET 2: 2101 CITYWEST, BLDG 3, SUITE 400 CITY: HOUSTON STATE: TX ZIP: 77042 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 4 1 doc4.xml FORM 4 SUBMISSION X0306 4 2013-03-14 0 0000866609 ION GEOPHYSICAL CORP IO 0001228756 MORRISON MICHAEL L 2105 CITYWEST BOULEVARD SUITE 400 HOUSTON TX 77042-2839 0 1 0 0 VP & Corp Controller Common Stock 2013-03-14 4 S 0 3000 7.091 D 17832 D Includes 58 shares acquired under the ION Employee Stock Purchase Plan. Includes 74 shares as payment of tax liability for the vesting of a security issued in accordance with Rule 16b-3 that were inadvertently excluded from the amount reported on the Form 4 filed on September 2, 2009. Debra A. Addington, attorney-in-fact 2013-03-15