Form 4 Filing for Saathoff MardiLyn

This filing details transactions made by Saathoff MardiLyn, General Counsel, Chief Compliance Officer, and Senior Vice President of Regulatory Affairs at Northwest Natural Holding Co. On December 22, 2025, MardiLyn Saathoff disposed of a total of 1.1235 shares of Common Stock at a price of $46.90 per share. These dispositions were due to the sale of fractional shares resulting from the transfer of whole shares between directly held accounts. Following these transactions, the post-transaction shares were 28458.787 and 28458.0 respectively. The filing also notes holdings of common stock under a Deferred Compensation Plan for Directors and Executives (16004.178 shares) and a Retirement K Savings Plan (662.807 shares), with the latter having been inadvertently omitted from previous filings.