0001209191-11-059425.txt : 20111205 0001209191-11-059425.hdr.sgml : 20111205 20111205145731 ACCESSION NUMBER: 0001209191-11-059425 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20110304 FILED AS OF DATE: 20111205 DATE AS OF CHANGE: 20111205 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: PEEBLER ROBERT P CENTRAL INDEX KEY: 0001228219 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-12691 FILM NUMBER: 111242883 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 X0304 4 2011-03-04 0 0000866609 ION GEOPHYSICAL CORP IO 0001228219 PEEBLER ROBERT P 2105 CITYWEST BOULEVARD SUITE 400 HOUSTON TX 77042-2839 1 1 0 0 Chief Exec Officer Common Stock 2011-03-04 4 G 0 20000 0.00 D 806292 D Common Stock 2011-12-01 4 F 0 12150 5.81 D 794142 D /s/ Debra A. Addington, attorney-in-fact 2011-12-05