| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Patterson Kyra | VP and Chief People Officer, NW Natural | 250 SW TAYLOR ST, PORTLAND | Molly J. Wilcox, Attorney-in-Fact | 15 Sep 2025 | 0002085542 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| holding | NWN | No securities are beneficially owned. | 0 | 08 Sep 2025 | Direct |