Live feed16:52:08·1292dINSIDERFilingvia QuantisnowSEC Form 4: Von Falkenhausen Konstantin exercised 6,000 shares at a strike of $5.12, increasing direct ownership by 500% to 7,200 unitsByQuantisnow·Wall Street's wire, on your screen.NTIC· Northern Technologies International CorporationIndustrialsOriginal source