| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| BIRD BRIAN B | President and CEO, Director | 3010 WEST 69TH STREET, SIOUX FALLS | Emily L. Folsom, by power of attorney | 02 Mar 2026 | 0001271670 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | NWE | Common Stock | Award | $1,428,141 | +20,864 | +10% | $68.45 | 225,388 | 27 Feb 2026 | Direct | F1, F2, F3 |
| transaction | NWE | Common Stock | Tax liability | $0 | -7,341 | -3.3% | $0.000000 | 218,047 | 27 Feb 2026 | Direct |
| Id | Content |
|---|---|
| F1 | Shares acquired upon 12/31/25 vesting of performance units granted under the company's 2023 Long-Term Incentive Program. |
| F2 | Share price is the closing share price on 2/11/26, the date when the company's Board of Directors approved payout and vesting of the award. |
| F3 | Total shares owned includes shares acquired from participation in the company's Employee Stock Purchase Plan and through dividend reinvestment. |