| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Evans Linden R | President and CEO | PO BOX 1400, RAPID CITY | /s/Travis Frederickson | 09 Feb 2026 | 0001305656 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | BKH | Common Stock | Award | $0 | +17,793 | +11% | $0.000000 | 173,689 | 06 Feb 2026 | Direct | F1 |
| transaction | BKH | Common Stock | Tax liability | $117,468 | -1,625 | -0.94% | $72.30 | 172,064 | 07 Feb 2026 | Direct | F2 |
| transaction | BKH | Common Stock | Tax liability | $77,041 | -1,078 | -0.63% | $71.48 | 170,986 | 09 Feb 2026 | Direct | F3 |
| transaction | BKH | Common Stock | Tax liability | $98,810 | -1,382 | -0.81% | $71.48 | 169,604 | 09 Feb 2026 | Direct | F4, F5 |
| holding | BKH | Common Stock | 4,491 | 06 Feb 2026 | By 401K |
| Id | Content |
|---|---|
| F1 | Shares acquired through a Restricted Stock Grant under the Company's Incentive Compensation Plan. |
| F2 | Shares used to pay tax withholding associated with Restricted Stock Vesting from 2-7-2025 Restricted Stock Grant |
| F3 | Shares used to pay tax withholding associated with Restricted Stock Vesting from 2-9-2023 Restricted Stock Grant |
| F4 | Shares used to pay tax withholding associated with Restricted Stock Vesting from 2-9-2024 Restricted Stock Grant |
| F5 | Due to a temporary software issue, the post-transaction share balance is understated by 1,000 shares. The reporting person actually owns 170,603.653 shares. |