Live feed18:22:08·384dINSIDERFilingvia QuantisnowVP, CAO & Treasurer White Douglas L converted options into 32,000 shares and covered exercise/tax liability with 15,713 shares, increasing direct ownership by 6% to 304,515 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.NPKI· NPK International Inc.Consumer DiscretionaryOriginal source