Northwest Natural director proposes $1.09M share sale

The notice lists 42,093,538 shares outstanding alongside two earlier sales of 1,500 shares each.

Rhea-AI Filing Summary

Northwest Natural Holding Co. (NWN) director David Hugo Anderson reported a proposed sale of 19,500 common shares through The Charles Schwab Corporation, with an aggregate market value of $1,088,790 and an approximate sale date of October 19, 2026. The account is identified as David Anderson Trust and Susan Sands Anderson Trust, held as TIC. The notice also lists sales of 1,500 shares on August 18, 2026, for $76,293, and 1,500 shares on September 18, 2026, for $72,038.

Key Figures

Proposed sale: 19,500 shares Aggregate market value: $1,088,790 Shares outstanding: 42,093,538 shares +4 more

7 metrics

Proposed sale 19,500 shares Common shares; approximate sale date October 19, 2026

Aggregate market value $1,088,790 Proposed sale

Shares outstanding 42,093,538 shares Reported with the proposed sale

Prior sale 1,500 shares August 18, 2026

Prior sale value $76,293 August 18, 2026

Prior sale 1,500 shares September 18, 2026

Prior sale value $72,038 September 18, 2026

Key Terms

Rule 144, TIC, TTEE

3 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144"

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

TIC technical

"HELD AS TIC"

TTEE technical

"D ANDERSON & S ANDERSON TTEE"

FAQ

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How many NWN shares did David Hugo Anderson propose to sell?

David Hugo Anderson, a director of Northwest Natural Holding Co., reported a proposed sale of 19,500 common shares with an aggregate market value of $1,088,790.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 10/19/2026 - 10:14 AM EDT Accepted by SEC EDGAR 10/19/2026 - 10:13 AM EDT Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001241405
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	Northwest Natural Holding Co
SEC File Number	001-38681
Address of Issuer	250 SW TAYLOR STREET PORTLAND OREGON 97204
Phone	503-226-4211
Name of Person for Whose Account the Securities are To Be Sold	ANDERSON DAVID HUGO
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Director

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
COMMON	THE CHARLES SCHWAB CORPORATION 3000 Schwab Way Westlake TX 76262	19500	1088790.00	42093538	10/19/2026	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
COMMON	11/15/2005	VARIOUS METHODS AND DATES	ISSUER / OPEN MARKET			19500	11/15/2005	NA

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
DAVID H ANDERSON 250 SW Taylor Street Portland OR 97204	COMMON	08/18/2026	1500	76293.00
DAVID H ANDERSON 250 SW Taylor Street Portland OR 97204	COMMON	09/18/2026	1500	72038.00

144: Remarks and Signature

Remarks	FULL ACCOUNT TITLE: DAVID ANDERSON TR & SUSAN SANDS ANDERSON TR HELD AS TIC, D ANDERSON & S ANDERSON TTEE
Date of Notice	10/19/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	03/27/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	DAVID H ANDERSON
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)