X0508 4 2024-02-20 0 0000875357 BOK FINANCIAL CORP BOKF 0001386983 Maun Marc C/O FREDERIC DORWART, LAWYERS PLLC 124 EAST 4TH STREET TULSA OK 74103 0 1 0 0 EVP - Regional Banking 0 Common Stock 2024-02-20 4 A 0 8583 0 A 31062 D Common Stock 2024-02-21 4 D 0 3255 0 D 27807 D Common Stock 8991 I Marc Christopher Maun Revocable Trust (1997) Common Stock 137.1778 I by 401(k) Plan Represents restricted stock which vests on January 12, 2027. 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 the BOKF Executive Incentive Plan are not met. The reporting person transferred 3,198 shares indirectly held by Marc Christopher Maun Revocable Trust (1997) to direct holdings. Represents forfeiture of unvested restricted stock based upon performance goals established pursuant to the BOKF Executive Incentive Plan for restricted stock awards made in 2021. /s/ Tamara Sloan, Power of Attorney 2024-02-22