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Filing metadata

Accession number: 0001209191-18-046901
Form type: Form 4
Filer: ION GEOPHYSICAL CORP
CIK: CIK 866609
Filed: Aug 15, 2018
Reporting period: Aug 14, 2018
Description: Insider transaction

Documents

0001209191-18-046901-index.htm

Complete submission

0001209191-18-046901.txt

directory listing

Filed by

ION GEOPHYSICAL CORP