| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Berge Megan H | SVP, GC, CCO & Corp. Sec. | 250 SW TAYLOR STREET, PORTLAND | Molly J. Wilcox, Attorney-in-Fact | 27 Feb 2026 | 0002058274 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | NWN | Common Stock | Award | $0 | +1,029 | +16% | $0.000000 | 7,326 | 25 Feb 2026 | Direct | F1, F2 |
| Id | Content |
|---|---|
| F1 | Shares are issuable as a result of satisfaction of the performance threshold for 2025 under restricted stock unit awards. Organization and Executive Compensation Committee certification of the satisfaction of the performance threshold occurred on the transaction date. |
| F2 | Includes 6,297 time-based restricted stock units granted under the Long Term Incentive Plan of Issuer. The restricted stock units vest in three equal installments on each of March 1, 2026, 2027 and 2028. |