Live feed16:02:31·587dINSIDERFilingvia QuantisnowLarge owner Gabelli Mario J sold $450,816 worth of shares (7,500 units at $60.11), decreasing direct ownership by 6% to 126,471 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.MPTI· M-tron Industries Inc.TechnologyOriginal source