| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Weber David A. | VP, Gas Supply, NW Natural | 250 SW TAYLOR ST, PORTLAND | Molly J. Wilcox, Attorney-in-Fact | 27 Feb 2026 | 0001538965 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | NWN | Common Stock | Award | $0 | +1,104 | +414% | $0.000000 | 1,371 | 25 Feb 2026 | Direct | F1 |
| transaction | NWN | Common Stock | Award | $0 | +1,962 | +143% | $0.000000 | 3,333 | 25 Feb 2026 | Direct | F2 |
| holding | NWN | Common Stock | 2,235 | 25 Feb 2026 | See Footnote | F3 | |||||
| holding | NWN | Common Stock | 21,878 | 25 Feb 2026 | See Footnote | F4 |
| 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 | Shares are issuable as a result of satisfaction of performance goals for 2023-2025 under a performance share award. Organization and Executive Compensation Committee certification of the award payout level occurred on the transaction date. |
| F3 | Shares have been credited to the reporting persons account under the Northwest Natural Gas Company Deferred Compensation Plan for Directors and Executives. |
| F4 | Shares held in reporting persons account under the Northwest Natural Gas Company Retirement K Savings Plan as of February 13, 2026. |