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BCS

Changes in Beneficial Ownership · 4

Northwest Natural Holding Company

NWNNYSEEQUITYCurrent

Changes in Beneficial Ownership

Filed Oct 21, 2026Accepted Oct 21, 2026, 4:12 PM EDTFiling CIK 1733998Accession 0001733998-26-000149
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Structured filing — 4

form4.xml

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Filing details

Report period
2026-10-19
Issuer
Northwest Natural Holding Co
Issuer CIK
0001733998
Trading symbol
NWN
Rule 10b5-1 indication
Checked

Reporting owner 1

Name
ANDERSON DAVID HUGO
Reporting owner CIK
0001241405
Relationship
Director
Address
250 SW TAYLOR ST, PORTLAND, OR, 97204

Non-derivative transactions

Non-derivative transactions · 1 reported row
SecurityTransaction dateCodeAmountA / DPrice (USD)Owned afterOwnership
Common Stock2026-10-19S · Form 4[F1]1,500D48.7074[F2]47,759D
Table key
S · Form 4
Sale on the market or privately
D
Direct

Non-derivative holdings

Non-derivative holdings · 1 reported row
SecurityAmount ownedOwnershipNature of ownership
Common Stock9,064.094ISee Footnote[F3]
Table key
I
Indirect

Footnotes

F1
Transaction made pursuant to a Rule 10b5-1 trading plan established by the reporting person on March 27, 2026. 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 7 times the then-current $450,000 stock ownership requirements for non-management directors. 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.↩ 1
F2
This transaction was executed in multiple trades on reported date with prices ranging from $48.5700 to $48.8200, resulting in a weighted average price of $48.7074. 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.↩ 1
F3
Shares have been credited to reporting person's account under Northwest Natural Gas Company's Deferred Compensation Plan for Directors and Executives.↩ 1

Signature 1

Signed
Molly J. Wilcox, Attorney-in-Fact
Date
2026-10-21

Company context

Current securities

Recent company filings

  1. 144 filingOct 19, 2026
  2. Regulation FD Disclosure · Other EventsSep 23, 2026
  3. 4 filingSep 21, 2026
  4. 4 filingSep 3, 2026
  5. Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet ArrangementSep 3, 2026

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