Live feed17:44:28·157dINSIDERFilingvia QuantisnowEVP, Chief Information Officer Martin Derek covered exercise/tax liability with 110 shares and returned 945 shares to the company, decreasing direct ownership by 6% to 15,914 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.BOKF· BOK Financial CorporationFinanceOriginal source