SC 13G/A | SEC Filings Hub

Filing metadata

Accession number: 0000914208-13-000398
Form type: SC 13G
Filer: ION GEOPHYSICAL CORP
CIK: CIK 866609
Filed: Jun 10, 2013
Reporting period: May 31, 2013
Description: Passive 5%+ stake

Documents

0000914208-13-000398-index.htm

Complete submission

0000914208-13-000398.txt

directory listing

Filed by

ION GEOPHYSICAL CORP