| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| McAllister Kathleen S | Director | PO BOX 1400, RAPID CITY | /s/Tom Stevens | 02 May 2025 | 0001614884 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | BKH | Common Stock | Award | $0 | +2,222 | +19% | $0.000000 | 14,091 | 01 May 2025 | Direct | F1 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| holding | BKH | Phantom Stock Unit | 4,034 | 01 May 2025 | Common Stock | 4,034 | By Trust | F2, F3, F4 |
| Id | Content |
|---|---|
| F1 | Non-employee Director Restricted Stock Unit Grant |
| F2 | 1 for 1 conversion ratio |
| F3 | Derivative security is exercisable upon retirement under terms of the agreement. |
| F4 | Derivative security expires upon retirement under terms of the agreement. |