Live feed16:36:15·1446dINSIDERFilingvia QuantisnowSEC Form 4: Schwausch Scott covered exercise/tax liability with 1,977 shares, decreasing direct ownership by 6% to 28,852 units (for tax liability)ByQuantisnow·Wall Street's wire, on your screen.IO· Ion Geophysical CorporationEnergyOriginal source