X0306 4 2023-01-10 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 Common Stock 2023-01-10 4 F 0 130 102.79 D 18378 D Common Stock 2023-01-10 4 D 0 1107 D 17271 D Common Stock 12189 I Marc Christopher Maun Revocable Trust (1997) Common Stock 133.6911 I by 401(k) Plan Phantom Stock 2023-01-10 4 A 0 1107 A Common Stock 1107 6371.8579 D The reporting person elected to defer receipt of 1,237 shares of common stock issuable upon the exercise of stock options. 130 of the deferred shares were used to pay the exercise price and taxes on the options. The reporting person elected to diversify the 1,107 shares of BOKF phantom stock remaining after payment of the exercise price and taxes to alternative investments. 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 2.8758 shares of BOKF common stock acquired under the BOKF 401(k) plan since the date of the reporting person's last ownership report. /s/ Tamara Wagman, Power of Attorney 2023-01-12