X0306 4 2023-02-28 0 0000875357 BOK FINANCIAL CORP BOKF 0001286737 KYMES STACY C/O FREDERIC DORWART, LAWYERS PLLC 124 EAST FOURTH STREET TULSA OK 74103 1 1 0 0 President & CEO Common Stock 2023-02-28 4 M 0 4988 0 D 45175.539 D Common Stock 2023-03-01 4 A 0 23511 0 A 68686.539 D Common Stock 13543 I Angel D Kymes Revocable Trust Common Stock 8918.6014 I by 401(k) Plan Represents forfeiture of unvested restricted stock based upon performance goals established pursuant to the BOKF Executive Incentive Plan for restricted stock awards made in 2020. Represents restricted stock which vests on January 13, 2026. Shares are subject to forfeiture (i) upon termination of employment prior to vesting, and (ii) if certain performance earnings per share targets established pursuant to BOKF Executive Incentive Plan are not met. Includes 46.0425 shares of BOKF common stock acquired under the BOKF 401(k) plan since the date of the reporting person's last ownership report. /s/ Tamara Wagman, Power of Attorney 2023-03-02