Live feed17:22:03·304dINSIDERFilingvia QuantisnowPresident & CEO Lanigan Matthew sold $712,536 worth of shares (68,896 units at $10.34) and exercised 68,896 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