0001209191-11-021537.txt : 20110405
0001209191-11-021537.hdr.sgml : 20110405
20110405151338
ACCESSION NUMBER: 0001209191-11-021537
CONFORMED SUBMISSION TYPE: 4
PUBLIC DOCUMENT COUNT: 1
CONFORMED PERIOD OF REPORT: 20110404
FILED AS OF DATE: 20110405
DATE AS OF CHANGE: 20110405
REPORTING-OWNER:
OWNER DATA:
COMPANY CONFORMED NAME: Hanson R Brian
CENTRAL INDEX KEY: 0001297501
FILING VALUES:
FORM TYPE: 4
SEC ACT: 1934 Act
SEC FILE NUMBER: 001-12691
FILM NUMBER: 11739745
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
X0303
4
2011-04-04
0
0000866609
ION GEOPHYSICAL CORP
IO
0001297501
Hanson R Brian
2105 CITYWEST BOULEVARD
SUITE 400
HOUSTON
TX
77042-2839
0
1
0
0
Exec. VP & CFO
Common stock
2011-04-04
4
S
0
22500
13.55
D
150317
D
The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 2, 2011.
/s/ Debra A. Addington, attorney-in-fact
2011-04-05