# EDGAR Filing Document

**Accession Number:** 0001241405
**File Stem:** 0001733998-25-000140
**Filing Date:** 2025-8
**Character Count:** 11634
**Document Hash:** ad212df726cf4bb92e5e868b966cfdce
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001733998-25-000140.hdr.sgml**: 20250820

**ACCESSION NUMBER**: 0001733998-25-000140

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20250819

**FILED AS OF DATE**: 20250820

**DATE AS OF CHANGE**: 20250820

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** ANDERSON DAVID HUGO
- **CENTRAL INDEX KEY:** 0001241405

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-38681
- **FILM NUMBER:** 251238053
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Northwest Natural Holding Co
- **CENTRAL INDEX KEY:** 0001733998
- **STANDARD INDUSTRIAL CLASSIFICATION:** NATURAL GAS DISTRIBUTION [4924]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 824710680
- **STATE OF INCORPORATION:** OR
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 250 SW TAYLOR STREET
- **CITY:** PORTLAND
- **STATE:** OR
- **ZIP:** 97204
- **BUSINESS PHONE:** 503-226-4211

**MAIL ADDRESS:**
- **STREET 1:** 250 SW TAYLOR STREET
- **CITY:** PORTLAND
- **STATE:** OR
- **ZIP:** 97204

## Exhibit 24.1

#### POWER OF ATTORNEY
**KNOW ALL BY THESE PRESENT**, that the undersigned hereby constitutes and appoints each of Megan H. Berge, MardiLyn Saathoff, Molly J. Wilcox, Megan E. Kenney and Cathy D. Crown, the undersigned's true and lawful attorney-in-fact to:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

(1) execute for and on behalf of the undersigned, in the undersigned's capacity as an officer of and/or director of and/or beneficial owner of greater than ten percent (10%) of a class of equity securities registered under Section 12 of the Securities Exchange Act of 1934, as amended (the Exchange Act), of Northwest Natural Holding Company, an Oregon corporation (the Company), a Form ID, enrollment in Edgar Next and Forms 3, 4, and 5 in accordance with Section 16(a) of the Exchange Act and the rules thereunder;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

(2) do and perform any and all acts for and on behalf of the undersigned, which may be necessary or desirable to complete and execute any such Form ID, enrolling in Edgar Next or Forms 3, 4 and 5 and timely file any such form with the United States Securities and Exchange Commission, any stock exchange or similar authority, and the Company;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

(3) obtain credentials (including codes or passwords) to enable the undersigned, in the undersigned's capacity as an officer and/or director of the Company to submit and file documents, forms and information via the U.S. Securities and Exchange Commission ("SEC") Electronic Data Gathering, Analysis, and Retrieval ("EDGAR") system, including enrolling the undersigned in EDGAR Next or any successor filing system;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

(4) do and perform any and all acts for and on behalf of the undersigned which may be necessary to serve as an account administrator for the undersigned's EDGAR account, including (i) appoint, remove and replace account administrators, account users, and delegated entities; (ii) maintain the security of the undersigned's EDGAR account, including modification of access codes; (iii) maintain, modify and certify the accuracy of information on the undersigned's EDGAR account dashboard; and (iv) any other actions contemplated by Rule 10 of Regulation S-T;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

(5) cause the Company to accept a delegation of authority from the undersigned's EDGAR account administrators and authorize the Company's EDGAR account administrators pursuant to that delegated entity designation to appoint, remove or replace users for the undersigned's EDGAR account; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

(6) take any other action of any type whatsoever in connection with the foregoing which, in the opinion of such attorney-in-fact, may be of benefit to, in the best interest of, or legally required by, the undersigned, it being understood that the documents executed by such attorney-in-fact on behalf of the undersigned pursuant to this Power of Attorney shall be in such form and shall contain such terms and conditions as such attorney-in-fact may approve in such attorney-in-fact's discretion.

The undersigned hereby grants such attorney-in-fact full power and authority to do and perform any and every act and thing whatsoever requisite, necessary, or proper to be done in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as the undersigned might or could do if personally present, with full power of substitution or revocation, hereby ratifying and confirming all that such attorney-in-fact, or such attorney-in-fact's substitute or substitutes, shall lawfully do or cause to be done by virtue of this Power of Attorney and the rights and powers herein granted. The undersigned acknowledges that the foregoing attorney-in-fact, in serving in such capacity at the request of the undersigned, is not assuming, nor is the Company assuming, any of the undersigned's responsibilities to comply with Section 16 of the Exchange Act.

This Power of Attorney shall remain in full force and effect until the undersigned is no longer required to file Forms 3, 4 and 5 with respect to the undersigned's holdings of and transactions in securities issued by the Company, unless earlier revoked by the undersigned in a signed writing delivered to the foregoing attorney-in-fact.

**IN WITNESS WHEREOF**, the undersigned has caused this Power of Attorney to be executed as of the 23rd day of July, 2025.

<u>/s/ David H. Anderson</u>

------

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

[x] Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>ANDERSON DAVID HUGO<br><sub>(Last) (First) (Middle)</sub><br>250 SW TAYLOR ST<br><sub>(Street)</sub><br>PORTLAND, OR 97204<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2025-08-19 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[X] Director [ ] 10% Owner<br>[ ] Officer (give title below) [ ] Other (specify below)<br>_ _ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>Northwest Natural Holding Co [ NWN ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| Common Stock | 2025-08-19 |  | S<sup>(1)</sup> |  | 7574 | D | 40.4293<sup>(2)</sup> | 79717 | D |  |
| Common Stock |  |  |  |  |  |  |  | 10504.859 | I | See Footnote<sup>(3)</sup> |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

---

### Footnotes:

(1) Transaction made pursuant to a Rule 10b5-1 trading plan established by the reporting person on September 16, 2024. As previously disclosed, Mr. Anderson retired from his position as CEO of NW Holdings and NW Natural, effective April 1, 2025. At the time the 10b5-1 Plan was established, Mr. Anderson held more than 8 times his annual salary in NW Holdings' stock; an amount greater than required by the NW Holdings' stock ownership requirements. This trading arrangement allows Mr. Anderson to periodically sell a portion of his NW Holdings' common stock to diversify his holdings in connection with his retirement. As of the date of this filing, Mr. Anderson holds the following shares that are not subject to his trading arrangement: 47,459 shares of which 10,505 are held in Northwest Natural Gas Company's Deferred Compensation Plan for Directors and Officers and 36,954 are held in his trust.

(2) This transaction was executed in multiple trades on reported date with prices ranging from $40.16 to $40.57, resulting in a weighted average price of $40.4293.  Northwest Natural Holding Company (Issuer) will provide upon request by the Commission staff or a security holder of the Issuer full information regarding the number of shares sold at each separate price.

(3) Shares have been credited to reporting person's account number Northwest Natural Gas Company's Deferred Compensation Plan for Directors and Executives.

**Signature:** Molly J. Wilcox, Attorney-in-Fact  
**Date:** 2025-08-20

### Remarks:

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

**Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.**