0001209191-21-001051.txt : 20210105
0001209191-21-001051.hdr.sgml : 20210105
20210105162134
ACCESSION NUMBER: 0001209191-21-001051
CONFORMED SUBMISSION TYPE: 4
PUBLIC DOCUMENT COUNT: 1
CONFORMED PERIOD OF REPORT: 20201231
FILED AS OF DATE: 20210105
DATE AS OF CHANGE: 20210105
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: 21505851
MAIL ADDRESS:
STREET 1: 2105 CITYWEST BLVD.
STREET 2: SUITE 100
CITY: HOUSTON
STATE: TX
ZIP: 77042-2855
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
4
1
doc4.xml
FORM 4 SUBMISSION
X0306
4
2020-12-31
0
0000866609
ION GEOPHYSICAL CORP
IO
0001507574
Williamson Ken
2105 CITYWEST BOULEVARD
SUITE 100
HOUSTON
TX
77042-2855
0
1
0
0
EVP&COO, E&P TECHNO & SERVICES
Common Stock
2020-12-31
4
J
0
533
0.00
D
164108
D
On December 31, 2020, Mr. Williamson surrendered 533 shares of Common Stock to the Issuer that were held at the transfer agent. This was not a sale or an open market transaction. This was done by Mr. Williamson for year-end tax planning purposes.
/s/ Rebecca F. Sacco, attorney-in-fact
2021-01-05