X0306 4 2021-02-23 0 0000875357 BOK FINANCIAL CORP BOKF 0001248923 BRADSHAW STEVEN G C/O FREDERIC DORWART 124 E FOURTH STREET TULSA OK 74103 1 1 0 0 President & CEO Common Stock 2021-02-23 4 A 0 29340 0 A 102060 D Common Stock 2021-02-24 4 M 0 11551 0 A 113611 D Common Stock 2021-02-24 4 F 0 14388 90.07 D 99223 D Common Stock 2021-02-24 4 J 0 18051 0 D 81172 D Common Stock 2021-02-24 4 J 0 18051 0 A 138954 I Steven G. Bradshaw Revocable Trust Represents restricted stock which vests on January 8, 2024. 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. Represents upward restricted stock adjustments based upon attainment of performance goals established pursuant to the BOKF Executive Incentive Plan for restricted stock awards made in 2018. Mr. Bradshaw transferred 18,051 shares from shares directly held to Steven G. Bradshaw Revocable Trust. /s/ Frederic Dorwart, Power of Attorney 2021-02-25