| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Lail Crystal Dawn | VP and CFO | 3010 W 69TH STREET, SIOUX FALLS | Emily L. Folsom, by power of attorney | 22 Jan 2026 | 0001656678 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | NWE | Common Stock | Tax liability | $52,148 | -808 | -2.7% | $64.54 | 29,170 | 22 Jan 2026 | Direct |