X0508 4 2024-01-08 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 2024-01-08 4 F 0 145.673 85.16 D 20530.327 D Common Stock 2024-01-08 4 D 0 1249.327 D 19281 D Common Stock 12189 I Marc Christopher Maun Revocable Trust (1997) Common Stock 137.1778 I by 401(k) Plan Phantom Stock 2024-01-08 4 A 0 1249.327 A Common Stock 1249.327 7889.6299 D The reporting person elected to defer receipt of 1,395 shares of common stock issuable upon the exercise of stock options. 145.673 of the deferred shares were used to pay the exercise price and taxes on the options. The reporting person elected to diversify the 1,249.327 shares of BOKF phantom stock remaining after payment of the exercise price and taxes to alternative investments. Includes 2.7929 shares of BOKF common stock acquired under the BOKF 401(k) plan since the date of the reporting person's last ownership report. 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. Includes 168.645 shares of BOKF phantom stock acquired under a BOKF dividend reinvestment plan since the date of the reporting person's last ownership report. /s/ Tamara Sloan, Power of Attorney 2024-01-10