Live feed17:37:07·372dINSIDERFilingvia QuantisnowDirector Lewis Michael A sold $17,315 worth of shares (2,013 units at $8.60), decreasing direct ownership by 1% to 137,372 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.NPKI· NPK International Inc.Consumer DiscretionaryOriginal source