| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Hines John D | VP - Energy Supply & MT Gov | 208 N. MONTANA AVENUE, SUITE 205, HELENA | Emily L. Folsom, by power of attorney | 20 Jan 2026 | 0001522051 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | NWE | Common Stock | Tax liability | $5,421 | -84 | -0.22% | $64.54 | 38,599 | 15 Jan 2026 | Direct |