SC 13G/A | SEC Filings Hub

Filing metadata

Accession number: 0000914208-14-000072
Form type: SC 13G
Filer: ION GEOPHYSICAL CORP
CIK: CIK 866609
Filed: Feb 05, 2014
Reporting period: Dec 31, 2013
Description: Passive 5%+ stake

Documents

0000914208-14-000072-index.htm

Complete submission

0000914208-14-000072.txt

directory listing

Filed by

ION GEOPHYSICAL CORP