Filing

SC 13D

SC 13D

0000950129-99-001899·ION GEOPHYSICAL CORP

Filing metadata

Accession number: 0000950129-99-001899
Form type: SC 13D
Filer: ION GEOPHYSICAL CORP
CIK: CIK 866609
Filed: Apr 30, 1999
Reporting period: —
Description: Activist stake

Documents

0000950129-99-001899-index.htm

Complete submission

0000950129-99-001899.txt

directory listing

Filed by

ION GEOPHYSICAL CORP