-----BEGIN PRIVACY-ENHANCED MESSAGE----- Proc-Type: 2001,MIC-CLEAR Originator-Name: webmaster@www.sec.gov Originator-Key-Asymmetric: MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB MIC-Info: RSA-MD5,RSA, RF1mEuNcJHNbOBjHT5lBfgF7txvoBKU8ReodpPr74YKHiyOE03CuQXdtQcqvj8Kx 1wSbiUl4Y2pDHEE9j2kxRA== 0001209191-11-014282.txt : 20110302 0001209191-11-014282.hdr.sgml : 20110302 20110302150303 ACCESSION NUMBER: 0001209191-11-014282 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20110301 FILED AS OF DATE: 20110302 DATE AS OF CHANGE: 20110302 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Jennings Michael CENTRAL INDEX KEY: 0001319731 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-12691 FILM NUMBER: 11655837 MAIL ADDRESS: STREET 1: 10000 MEMORIAL DRIVE STREET 2: SUITE 600 CITY: HOUSTON STATE: TX ZIP: 77024 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 X0303 4 2011-03-01 0 0000866609 ION GEOPHYSICAL CORP IO 0001319731 Jennings Michael 2105 CITYWEST BLVD. SUITE 400 HOUSTON TX 77042-2839 1 0 0 0 Common stock 2011-03-01 4 A 0 20000 0.00 A 20000 D Includes 8,000 shares issued as an initial grant upon appointment as a director and 12,000 shares representing his pro rata portion of the first annual grant. /s/ Debra A. Addington, attorney-in-fact 2011-03-02 -----END PRIVACY-ENHANCED MESSAGE-----