X0508 4 2026-02-17 0 0000875357 BOK FINANCIAL CORP BOKF 0001760987 Martin Derek C/O FREDERIC DORWART, LAWYERS PLLC 124 EAST FOURTH STREET TULSA OK 74103 0 1 0 0 EVP, Chief Information Officer 0 Common Stock 2026-02-17 4 A 0 2873 0 A 18787.472 D Common Stock 2026-02-18 4 M 0 1534 0 A 20321.472 D Common Stock 2026-02-18 4 F 0 126.644 133.56 D 20194.828 D Common Stock 2026-02-18 4 D 0 3869.356 D 16325.472 D Phantom Stock 2026-02-18 4 A 0 3869.356 A Common Stock 3869.356 11200.2089 D Represents restricted stock which vests on January 16, 2029. 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 2023. Prior to issuance, the reporting person elected to defer receipt of 3,996 shares of phantom stock (restricted stock units) issued on February 28, 2023; which such phantom stock vested on February 18, 2026. On vesting, 126.644 shares of the phantom stock were disposed of to pay the taxes on vesting. The remaining 3,869.356 shares of phantom stock remain held by the reporting person as a derivative security. Each share of phantom stock represents a right to receive one share of common stock, or at the Company's election, the cash value thereof. The phantom stock becomes payable upon the reporting person's termination of employment with the Company. Tamara R. Sloan, Power of Attorney 2026-02-19