<SEC-DOCUMENT>0001047469-16-017297-index.html : 20161222 <SEC-HEADER>0001047469-16-017297.hdr.sgml : 20161222 <ACCEPTANCE-DATETIME>20161222161033 ACCESSION NUMBER: 0001047469-16-017297 CONFORMED SUBMISSION TYPE: 424B5 PUBLIC DOCUMENT COUNT: 3 FILED AS OF DATE: 20161222 DATE AS OF CHANGE: 20161222 FILER: 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 FILING VALUES: FORM TYPE: 424B5 SEC ACT: 1933 Act SEC FILE NUMBER: 333-213769 FILM NUMBER: 162066703 BUSINESS ADDRESS: STREET 1: 2105 CITYWEST BLVD STREET 2: SUITE 100 CITY: HOUSTON STATE: TX ZIP: 770422855 BUSINESS PHONE: 281.933.3339 MAIL ADDRESS: STREET 1: 2105 CITYWEST BLVD STREET 2: SUITE 100 CITY: HOUSTON STATE: TX ZIP: 770422855 FORMER COMPANY: FORMER CONFORMED NAME: INPUT OUTPUT INC DATE OF NAME CHANGE: 19930328 </SEC-HEADER> <DOCUMENT> <TYPE>424B5 <SEQUENCE>1 <FILENAME>a2230503z424b5.htm <DESCRIPTION>424B5 <TEXT> Document 1 - file: a2230503z424b5.htm
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