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Filing metadata

Accession number: 0001209191-21-032360
Form type: Form 4
Filer: ION GEOPHYSICAL CORP
CIK: CIK 866609
Filed: May 13, 2021
Reporting period: May 11, 2021
Description: Insider transaction

Documents

0001209191-21-032360-index.htm

Complete submission

0001209191-21-032360.txt

directory listing

Filed by

ION GEOPHYSICAL CORP