0001209191-11-059428.txt : 20111205
0001209191-11-059428.hdr.sgml : 20111205
20111205145843
ACCESSION NUMBER: 0001209191-11-059428
CONFORMED SUBMISSION TYPE: 4
PUBLIC DOCUMENT COUNT: 1
CONFORMED PERIOD OF REPORT: 20111201
FILED AS OF DATE: 20111205
DATE AS OF CHANGE: 20111205
REPORTING-OWNER:
OWNER DATA:
COMPANY CONFORMED NAME: Williamson Ken
CENTRAL INDEX KEY: 0001507574
FILING VALUES:
FORM TYPE: 4
SEC ACT: 1934 Act
SEC FILE NUMBER: 001-12691
FILM NUMBER: 111242891
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
4
1
doc4.xml
FORM 4 SUBMISSION
X0304
4
2011-12-01
0
0000866609
ION GEOPHYSICAL CORP
IO
0001507574
Williamson Ken
2105 CITYWEST BOULEVARD
SUITE 400
HOUSTON
TX
77042-2839
0
1
0
0
SVP, GeoVentures
Common Stock
2011-12-01
4
A
0
15000
0.00
A
74178
D
Common Stock
2011-12-01
4
F
0
353
5.81
D
73825
D
Common Stock
2011-12-01
4
F
0
529
5.81
D
73296
D
Common Stock
2011-12-01
4
F
0
882
5.81
D
72414
D
Employee stock option (right to buy)
5.81
2011-12-01
4
A
0
50000
0.00
A
2021-12-01
Common Stock
50000
50000
D
Includes 351 shares purchased through the ION Employee Stock Purchase Plan that were inadvertently included on Form 3/A.
The option becomes exercisable in four equal annual installments beginning on the first anniversary of the date specified in Column 3.
/s/ Debra A. Addington, attorney-in-fact
2011-12-05