X0306 4 2018-10-01 1 0001028734 COBIZ FINANCIAL INC COBZ 0001185611 BANGERT STEVEN 1401 LAWRENCE ST. STE. 1200 DENVER CO 80202 1 1 0 0 Chairman/CEO Common Stock 2018-10-01 4 D 0 1012355 D 0 D Common Stock 2018-10-01 4 D 0 135000 D 0 I by Corporation Common Stock 2018-10-01 4 D 0 241571 D 0 I by Partnership Common Stock 2018-10-01 4 D 0 10000 D 0 I by Son Common Stock 2018-10-01 4 D 0 68966 D 0 I by Spouse Shares disposed of pursuant to the Agreement and Plan of Merger, dated as of June 17, 2018 (the "Merger Agreement"), by and among CoBiz Financial Inc. ("Issuer"), and BOK Financial Corporation ("BOKF Parent"), and BOKF Merger Corporation Number Sixteen ("Merger Sub"), a wholly owned subsidiary of BOKF Parent, on October 1, 2018, Issuer was merged with and into Merger Sub, with Merger Sub continuing as the surviving corporation (the "Merger"). At the time of the merger, each share of Issuer common stock was converted into the right to receive merger consideration consisting of (i) 0.17 shares of BOKF Parent common stock and (ii) $5.70 cash ("Merger Consideration"). Disposed shares includes unvested restricted stock previously granted under an Equity Incentive Compensation Plan of the Issuer which became fully vested at the time of the merger and eligible to receive Merger Consideration. Shares disposed of pursuant to the Merger on October 1, 2018. By: Lyne Andrich POA for Steven Bangert 2018-10-03