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MDU RESOURCES GROUP INC

For the period ended Sep 30, 2025. Filed Nov 10, 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.

Sep 30, 2025 · Filed Nov 10, 2025

MDU$19.25+3.3%Stored close · as of Nov 9, 2026

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Signatures

Index

Signatures

Pursuant to the requirements of the Exchange Act, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

MDU RESOURCES GROUP, INC.
DATE:November 10, 2025BY:/s/ Jason L. Vollmer
Jason L. Vollmer
Chief Financial Officer
BY:/s/ Stephanie A. Sievert
Stephanie A. Sievert
Chief Accounting and Regulatory Affairs Officer
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The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.