0001209191-13-044137.txt : 20130913 0001209191-13-044137.hdr.sgml : 20130913 20130913135859 ACCESSION NUMBER: 0001209191-13-044137 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20130913 FILED AS OF DATE: 20130913 DATE AS OF CHANGE: 20130913 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: SEITZ JOHN N CENTRAL INDEX KEY: 0001221972 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-12691 FILM NUMBER: 131096002 MAIL ADDRESS: STREET 1: ION GEOPHYSICAL CORPORATION STREET 2: 2101 CITYWEST, BLDG 3, SUITE 400 CITY: HOUSTON STATE: TX ZIP: 77042 4 1 doc4.xml FORM 4 SUBMISSION X0306 4 2013-09-13 0 0000866609 ION GEOPHYSICAL CORP IO 0001221972 SEITZ JOHN N 2105 CITYWEST BOULEVARD SUITE 400 HOUSTON TX 77042-2839 1 0 0 0 Common Stock 2013-09-13 4 M 0 10000 4.11 A 103895 D Common Stock 2013-09-13 4 S 0 10000 4.81 D 93895 D Option to Purchase Common Stock 4.11 2013-09-13 4 M 0 10000 0.00 D 2004-11-03 2013-11-03 Common Stock 10000 0 D The options became exercisable in two equal annual installments beginning on the date specified in Column 6. Debra A. Addington, attorney-in-fact 2013-09-13