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Northwest Natural Holding Co

For the period ended Mar 31, 2025. Filed May 6, 2025.

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About this filing

A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Mar 31, 2025 · Filed May 6, 2025

NWN$52.02+0.5%Stored close · as of Nov 9, 2026

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Item 6. Exhibits

See the Exhibit Index below, which is incorporated by reference herein.

Exhibit Index to Quarterly Report on Form 10-Q

For the Quarter Ended March 31, 2025

Exhibit Index
Exhibit NumberDocument
*4.1Indenture (For Unsecured Subordinated Debt Securities) dated as of March 1, 2025 (incorporated by reference to Exhibit 4(a) to the Form 8-K dated March 18, 2025, File No. 1-38681).
*4.2Term Loan Credit Agreement, dated as of January 6, 2025 among Northwest Natural Holding Company, the lenders party thereto, with U.S. Bank National Association, as administrative agent and sole bookrunner and lead arranger (incorporated by reference to Exhibit 4t to the Form 10-K for the year ended December 31, 2024, File No. 1-38681).
*4.3364-Day Term Loan Credit Agreement, dated as of January 7, 2025, among Northwest Natural Holding Company, the lenders party thereto, with JPMorgan Chase Bank, N.A., as administrative agent, and Bank of America, N.A., U.S. Bank National Association and Wells Fargo Bank, National Association, as co-documentation agents (incorporated by reference to Exhibit 4u to the Form 10-K for the year ended December 31, 2024, File No. 1-38681).
*4.4Credit Agreement, dated as of December 22, 2020, among SiEnergy Operating, LLC, SiEnergy, L.P., Terra Transmission, LLC, SiEnergy Power Solutions, LLC, and SiEnergy GP, L.L.C., the lenders party thereto, with ING Capital LLC as administrative agent and L/C Issuer, as amended by Amendment No. 1 to the Credit Agreement, dated as of March 23, 2021, Amendment No. 2 to the Credit Agreement, dated as of July 13, 2021, Amendment No. 3 to the Credit Agreement, dated as of July 11, 2022, and Amendment No. 4 to the Credit Agreement dated as of December 22, 2023 (incorporated by reference to Exhibit 4v to the Form 10-K for the year ended December 31, 2024, File No. 1-38681).
*10.1Executive Annual Incentive Plan, effective January 1, 2025 (incorporated by reference to Exhibit 10m to the Form 10-K for the year ended December 31, 2024, File No. 1-38681).
*10.2Form of Change in Control Severance Agreement between Northwest Natural Gas Company and Justin B. Palfreyman, as amended and restated as of February 27, 2025 (incorporated by reference to Exhibit 10o to the Form 10-K for the year ended December 31, 2024, File No. 1-15973).
*10.3Form of Performance Share Long Term Incentive Agreement under Long Term Incentive Plan (2025-2027) (incorporated by reference to Exhibit 10x to the Form 10-K for the year ended December 31, 2024, File No. 1-38681).
*10.4Form of Restricted Stock Unit Award Agreement under Long Term Incentive Plan (2025) (incorporated by reference to Exhibit 10aa to the Form 10-K for the year ended December 31, 2024, File No. 1-38681).
31.1Certification of Principal Executive Officer of Northwest Natural Gas Company Pursuant to Rule 13a-14(a)/15-d-14(a), Section 302 of the Sarbanes-Oxley Act of 2002.
31.2Certification of Principal Financial Officer of Northwest Natural Gas Company Pursuant to Rule 13a-14(a)/15-d-14(a), Section 302 of the Sarbanes-Oxley Act of 2002.
31.3Certification of Principal Executive Officer of Northwest Natural Holding Company Pursuant to Rule 13a-14(a)/15-d-14(a), Section 302 of the Sarbanes-Oxley Act of 2002.
31.4Certification of Principal Financial Officer of Northwest Natural Holding Company Pursuant to Rule 13a-14(a)/15-d-14(a), Section 302 of the Sarbanes-Oxley Act of 2002.
**32.1Certification of Principal Executive Officer and Principal Financial Officer of Northwest Natural Gas Company Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
**32.2Certification of Principal Executive Officer and Principal Financial Officer of Northwest Natural Holding Company Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101The following materials formatted in Inline Extensible Business Reporting Language (Inline XBRL):(i) Consolidated Statements of Income;(ii) Consolidated Balance Sheets;(iii) Consolidated Statements of Cash Flows; and(iv) Related notes.The instance document does not appear in the interactive data file because XBRL tags are embedded within the Inline XBRL document.
104The cover page from the Company's Quarterly Report on Form 10-Q for the quarter ended March 31, 2025, formatted in Inline XBRL.
  • Incorporated by reference as indicated.

** Pursuant to Item 601(b)(32)(ii) of Regulation S-K, this certification is furnished and not filed for purposes of Section 18 of the Securities Exchange Act of 1934, as amended.

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