Live feed16:01:29·666dINSIDERFilingvia QuantisnowOfficer Koscinski Joseph S. bought $30,090 worth of shares (4,807 units at $6.26), increasing direct ownership by 0.89% to 544,609 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.ECVT· Ecovyst Inc.IndustrialsOriginal source