<SEC-DOCUMENT>0001209191-21-027893-index.html : 20210421 <SEC-HEADER>0001209191-21-027893.hdr.sgml : 20210421 <ACCEPTANCE-DATETIME>20210421210204 ACCESSION NUMBER: 0001209191-21-027893 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20210419 FILED AS OF DATE: 20210421 DATE AS OF CHANGE: 20210421 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: LAMBERT DALE J CENTRAL INDEX KEY: 0001799422 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-12691 FILM NUMBER: 21842971 MAIL ADDRESS: STREET 1: 2105 CITYWEST BLVD., SUITE 100 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 100 CITY: HOUSTON STATE: TX ZIP: 770422855 BUSINESS PHONE: 2819333339 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>4 <SEQUENCE>1 <FILENAME>doc4.xml <DESCRIPTION>FORM 4 SUBMISSION <TEXT> Document 1 - file: doc4.html
Document 1 - RAW XML: doc4.xml
</DOCUMENT> </SEC-DOCUMENT>