X0306 4 2020-02-25 0 0000875357 BOK FINANCIAL CORP ET AL BOKF 0001439806 Bagwell Norman P C/O FREDERIC DORWART LAWYERS 124 EAST FOURTH STREET TULSA OK 74103 0 1 0 0 EVP - Regional Banks Common Stock 2020-02-25 4 A 0 5954 0 A 42305 D Common Stock 2020-02-26 4 M 0 3899 0 A 46204 D Common Stock 2020-02-26 4 F 0 3272 77.36 D 42932 D Represents restricted stock which vests on January 10, 2023. 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 shares of common stock of the Issuer acquired upon the vesting of restricted stock. /s/ Frederic Dorwart, Power of Attorney 2020-02-27