Live feed16:42:46·719dINSIDERFilingvia QuantisnowKnopp Kevin J. bought $64,200 worth of shares (10,000 units at $6.42), increasing direct ownership by 2% to 508,981 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.MASS· 908 Devices Inc.IndustrialsOriginal source