| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| HORSFALL JAN ROBERT | Director | 3010 W 69TH STREET, SIOUX FALLS | Emily L. Folsom, by power of attorney | 2025-08-04 | 0001244563 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | NWE | Common Stock | Award | $37.5K | +731 | +8.6% | $51.30 | 9.23K | Aug 1, 2025 | Direct | F1, F2, F3, F4 |
| Id | Content |
|---|---|
| F1 | Third quarter stock grant for 2025 received pursuant to the NorthWestern Energy Group, Inc. compensation rate schedule for non-employee directors. |
| F2 | Represents underlying deferred share units that are issuable subsequent to the reporting person's termination of service from the company. |
| F3 | Grant price as of June 30, 2025. Shares issued as deferred share units on August 1, 2025. |
| F4 | Includes shares acquired from dividend reinvestment. |