Live feed16:17:58·401dINSIDERFilingvia QuantisnowDirector Meer Claudia Michel bought $31,680 worth of shares (4,000 units at $7.92), increasing direct ownership by 4% to 118,135 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.NPKI· NPK International Inc.Consumer DiscretionaryOriginal source