Live feed18:21:23·384dINSIDERFilingvia QuantisnowSenior Vice President and CFO Piontek Gregg converted options into 84,169 shares and covered exercise/tax liability with 42,079 shares, increasing direct ownership by 5% to 919,326 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.NPKI· NPK International Inc.Consumer DiscretionaryOriginal source