| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Heim Shannon | VP and General Counsel | 208 N. MONTANA AVE., SUITE 200, HELENA | Emily L. Folsom, by power of attorney | 20 Jan 2026 | 0001960374 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | NWE | Common Stock | Tax liability | $28,527 | -442 | -5.8% | $64.54 | 7,195 | 15 Jan 2026 | Direct |