Live feed19:31:11·293dINSIDERFilingvia QuantisnowPresident & CEO Lanigan Matthew sold $10,380 worth of shares (1,000 units at $10.38) and exercised 1,000 shares at a strike of $4.32 (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.NPKI· NPK International Inc.Consumer DiscretionaryOriginal source