| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| MALCOLM STEVEN J | Director | 100 W. 5TH ST., TULSA | /s/ Tamara R. Sloan, Power of Attorney | 16 Jul 2025 | 0001216710 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | BOKF | Common Stock | Award | $19,951 | +207 | +3.8% | $96.38 | 5,673 | 14 Jul 2025 | Steven J. Malcolm Revocable Trust |