Statement of Changes in Beneficial Ownership (Form 4)

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b). Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * Karney Joseph S 2. Issuer Name and Ticker or Trading Symbol Northwest Natural Holding Co [NWN] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) VP, Eng. & Utility Operations / NW Natural (Last) (First) (Middle) 250 SW TAYLOR STREET 3. Date of Earliest Transaction (Month/Day/Year) 03/05/2026 (Street) PORTLAND, OR 97204 4. If Amendment, Date Original Filed (Month/Day/Year) 6. Individual or Joint/Group Filing (Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 03/05/2026 F 136(1) D $52.53 5,147.1415 D Common Stock 03/05/2026 F 636(2) D $52.53 4,511.1415 D Common Stock 03/05/2026 S 0.574(3) D $52.53 4,510.5675 D Common Stock 03/05/2026 S 0.5675(3) D $52.53 4,510 D Common Stock 981.866 I See Footnote(4) Common Stock 240.745 I See Footnote(5)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Karney Joseph S 250 SW TAYLOR STREET PORTLAND, OR 97204			VP, Eng. & Utility Operations	NW Natural

Signatures

Molly J. Wilcox, Attorney-in-Fact		03/09/2026
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	Shares were withheld by the issuer to cover withholding taxes on issuance of shares due to vesting of 231 restricted stock units (RSUs) with a performance threshold and vesting of 54 time-based RSUs. Organization and Executive Compensation Committee certification of satisfaction of the performance threshold and vesting for these restricted stock units was reported on Form 4 filed on February 27, 2026. The 54 time-based RSUs are part of 180 time-based RSUs that have been reported as shares beneficially owned by the reporting person since initially reported on the reporting persons Form 3 on April 12, 2023.
(2)	Shares were withheld by the issuer to cover withholding taxes on issuance of performance shares. Organization and Executive Compensation Committee certification of the payout of these performance shares was reported on Form 4 filed on February 27, 2026.
(3)	Disposition of fractional shares in connection with the transfer of whole shares between accounts directly held by the reporting person.
(4)	Shares have been credited to the reporting persons account under the Northwest Natural Gas Company Deferred Compensation Plan for Directors and Executives. Includes 6 shares underlying time-based RSUs which vested March 1, 2026 and were deferred. The 6 time-based RSUs were part of 180 time-based RSUs that have been reported as shares beneficially owned by the reporting person since initially reported on the reporting persons Form 3 on April 12, 2023.
(5)	Shares held in the reporting persons account under the Northwest Natural Retirement K Savings Plan as of February 28, 2026.

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