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MDU RESOURCES GROUP INC

For the period ended May 11, 2026. Filed Apr 1, 2026.

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About this filing

What shareholders are asked to vote on at a company's meeting. It is where to find what directors and top executives are paid, and who owns the most shares.

May 11, 2026 · Filed Apr 1, 2026

Use the contents to explore the available documents and sections.

MDU$18.63+0.5%Stored close · as of Nov 6, 2026
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Contents

Cover page

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

SCHEDULE 14A INFORMATION

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

Filed by the Registrant ☒

Filed by a Party other than the Registrant ☐

Check the appropriate box:

☐Preliminary Proxy Statement
☐Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
☒Definitive Proxy Statement
☐Definitive Additional Materials
☐Soliciting Material under §240.14a-12

MDU Resources Group, Inc.

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check all boxes that apply):

☒No fee required
☐Fee paid previously with preliminary materials
☐Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11

Table of Contents

1Message from our CEO
2Message from our Chair
3Notice of Annual Meeting
4Proxy Summary
5About MDU Resources
9Voting Roadmap
13Proposal 1: Election of Directors
13Director Nominees
14Director Qualifications
15Director Nominees at a Glance
21Director Nominees’ Skillset Matrix
23Governance
23Our Board of Directors
31Our Board’s Oversight of Our Business
37Stockholder Engagement
38Communications With Our Board
39Committees
41Director Compensation
41Key Principles of Director Compensation Program
42Components of Director Compensation Program
42Governance
432025 Director Compensation
44Our Executive Officers
45Proposal 2: Advisory Vote to Approve NEO Compensation
46Executive Compensation
46Compensation Discussion and Analysis
62Compensation Committee Report
62Compensation Committee Interlocks and Insider Participation
62Compensation Program and Risk
63Summary Compensation Table
65Grants of Plan-Based Awards in 2025
66Outstanding Equity Awards at 2025 Year-End
67Stock Vested in 2025
67Pension Benefits in 2025
68Nonqualified Deferred Compensation in 2025
69Potential Payments Upon Termination or Change in Control
71CEO Pay Ratio
72Pay Versus Performance
77Proposal 3: Approval of Amended and Restated LTIP
77Material Changes
77Why Stockholders Should Approve the Proposal
78Historical Net Burn Rate and Overhang
78Key Provisions of the LTIP, As Amended and Restated
82Accounting Treatment
83Awards Granted Under LTIP
84Equity Compensation Plan Information
85Proposal 4: Ratification of Appointment of Our Independent Registered Public Accounting Firm
85Audit and Non-Audit Fees
86Audit Committee Preapproval Policies and Procedures
86Audit Committee Report
88Responsible Business Stewardship
89Stockholder Ownership
89Directors and Executive Officers
90Principal Stockholders
90Delinquent Section 16(a) Reports
92Additional Information
92Deadlines and Procedures for Nominations and Stockholder Proposals for the 2027 Annual Meeting
93Frequently Asked Questions
97No Incorporation by Reference
98Cautionary Note Regarding Forward-Looking Statements
99Glossary
100Helpful Resources
101Appendix (Amended and Restated LTIP)

See Glossary on page 99 for definitions of some of the terms used in this Proxy Statement.

ContentsView on SEC.gov

The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.