Live feed16:37:25·360dINSIDERFilingvia QuantisnowDirector Von Falkenhausen Konstantin bought $7,953 worth of shares (1,100 units at $7.23), increasing direct ownership by 6% to 18,219 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.NTIC· Northern Technologies International CorporationIndustrialsOriginal source