Initial Statement of Beneficial Ownership of Securities

Tamara Ruth Sloan, EVP, General Counsel of BOK FINANCIAL CORP, has filed an Initial Statement of Beneficial Ownership of Securities (Form 3). The filing, dated April 7, 2026, reports on transactions for the period ending March 31, 2026. Ms. Sloan directly owns 1,100 shares of Common Stock through her 401(k) Plan. This filing indicates her initial beneficial ownership of these securities.