0001209191-11-045017.txt : 20110819
0001209191-11-045017.hdr.sgml : 20110819
20110819145819
ACCESSION NUMBER: 0001209191-11-045017
CONFORMED SUBMISSION TYPE: 3/A
PUBLIC DOCUMENT COUNT: 1
CONFORMED PERIOD OF REPORT: 20101216
FILED AS OF DATE: 20110819
DATE AS OF CHANGE: 20110819
REPORTING-OWNER:
OWNER DATA:
COMPANY CONFORMED NAME: Williamson Ken
CENTRAL INDEX KEY: 0001507574
FILING VALUES:
FORM TYPE: 3/A
SEC ACT: 1934 Act
SEC FILE NUMBER: 001-12691
FILM NUMBER: 111047153
MAIL ADDRESS:
STREET 1: 2105 CITYWEST BLVD.
STREET 2: SUITE 400
CITY: HOUSTON
STATE: TX
ZIP: 77042-2839
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
3/A
1
doc3a.xml
FORM 3/A SUBMISSION
X0204
3/A
2010-12-16
2010-12-23
0
0000866609
ION GEOPHYSICAL CORP
IO
0001507574
Williamson Ken
2105 CITYWEST BOULEVARD
SUITE 400
HOUSTON
TX
77042-2839
0
1
0
0
SVP, ISS
Common Stock
59178
D
Reflects an additional 15,203 shares held in a separate brokerage account that were inadvertently omitted from the original Form 3 filing.
/s/ Debra A. Addington, attorney-in-fact
2011-08-19