0001437749-22-005201.txt : 20220303 0001437749-22-005201.hdr.sgml : 20220303 20220303181531 ACCESSION NUMBER: 0001437749-22-005201 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20220301 FILED AS OF DATE: 20220303 DATE AS OF CHANGE: 20220303 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Zhang ShaoHua CENTRAL INDEX KEY: 0001847884 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-12691 FILM NUMBER: 22710919 MAIL ADDRESS: STREET 1: 4203 YOAKUM BLVD STREET 2: SUITE 100 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: 4203 YOAKUM BLVD STREET 2: SUITE 100 CITY: HOUSTON STATE: TX ZIP: 77006 BUSINESS PHONE: 2819333339 MAIL ADDRESS: STREET 1: 4203 YOAKUM BLVD STREET 2: SUITE 100 CITY: HOUSTON STATE: TX ZIP: 77006 FORMER COMPANY: FORMER CONFORMED NAME: INPUT OUTPUT INC DATE OF NAME CHANGE: 19930328 4 1 rdgdoc.xml FORM 4 X0306 4 2022-03-01 0000866609 ION GEOPHYSICAL CORP IO 0001847884 Zhang ShaoHua 4203 YOAKUM BLVD. SUITE 100 HOUSTON TX 77006 1 Common Stock 2022-03-01 4 F 0 750 0.58 D 2123 D Common Stock 2022-03-01 4 A 0 2500 0 A 4623 D These shares were not sold, but were withheld by ION Geophysical Corporation upon the vesting of restricted stock shares to satisfy tax withholding obligations. Restricted stock award issued pursuant to the ION Geophysical Corporation Fourth Amended and Restated 2013 Long Term Incentive Plan. Award will vest 100% on March 1, 2023. /s/ Rebecca F. Sacco, attorney-in-fact 2022-03-03