Live feed17:37:40·1697dINSIDERFilingvia QuantisnowSEC Form 4: Usher Christopher Theron covered exercise/tax liability with 17,325 units of Common Stock, decreasing direct ownership by 5% to 350,388 units to cover taxesByQuantisnow·Wall Street's wire, on your screen.IO· Ion Geophysical CorporationEnergyOriginal source
