Live feed16:38:31·1446dINSIDERFilingvia QuantisnowSEC Form 4: Rodermund Sheila M covered exercise/tax liability with 6,631 shares, decreasing direct ownership by 10% to 59,832 units to satisfy withholding obligationByQuantisnow·Wall Street's wire, on your screen.IO· Ion Geophysical CorporationEnergyOriginal source