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as of 03-23-2026 3:36pm EST

$20.09
+$0.38
+1.93%
Stocks Industrials Mining & Quarrying of Nonmetallic Minerals (No Fuels) Nasdaq

MDU Resources Group Inc operates in three business segments, which include the electric segment, which generates, transmits, and distributes electricity in Montana, North Dakota, South Dakota, and Wyoming; The natural gas distribution segment distributes natural gas in those states, as well as in Idaho, Minnesota, Oregon, and Washington; The pipeline segment provides natural gas transportation and underground storage services through a regulated pipeline system in the Rocky Mountain and northern Great Plains regions of the United States. The majority of its revenues is generated from the Natural Gas distribution segment.

Founded: 1924 Country:
United States
United States
Employees: N/A City: BISMARCK
Market Cap: 4.3B IPO Year: 1994
Target Price: $22.00 AVG Volume (30 days): 1.6M
Analyst Decision: Strong Buy Number of Analysts: 1
Dividend Yield:
2.85%
Dividend Payout Frequency: quarterly
EPS: 0.93 EPS Growth: -32.12
52 Week Low/High: $15.04 - $21.50 Next Earning Date: 05-07-2026
Revenue: $1,875,066,000 Revenue Growth: 6.66%
Revenue Growth (this year): 7.52% Revenue Growth (next year): 6.00%
P/E Ratio: 21.19 Index: N/A
Free Cash Flow: -297029000.0 FCF Growth: N/A

AI-Powered MDU Daily Prediction

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Updated a day ago

AI Recommendation

hold
Model Accuracy: 71.17%
71.17%
Confidence

Disclaimer: This prediction is generated by an AI model and should not be considered as financial advice. Always conduct your own research and consult with financial professionals before making investment decisions.

Stock Insider Trading Activity of MDU Resources Group Inc. (Holding Company) (MDU)

Buy
MDU Feb 13, 2026

Avg Cost/Share

$20.85

Shares

5,000

Total Value

$104,225.00

Owned After

8,031

SEC Form 4

Earnings Transcripts

SEC 8-K filings with transcript text

View All
2025
Q4

Q4 2025 Earnings

8-K SELL

Feb 5, 2026 · 100% conf.

AI Prediction SELL

1D

-0.83%

$19.99

Act: +0.89%

5D

-1.83%

$19.79

Act: +3.22%

20D

-3.00%

$19.56

Act: +3.82%

Price: $20.16 Prob +5D: 0% AUC: 1.000
0000067716-26-000008

mdu-202602050000067716false00000677162026-02-052026-02-05

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): February 5, 2026

MDU Resources Group, Inc. (Exact name of registrant as specified in its charter)

Delaware1-0348030-1133956 (State or other jurisdiction of(Commission File Number)(IRS Employer incorporation) Identification No.)

1200 West Century Avenue P.O. Box 5650 Bismarck, North Dakota (Address of principal executive offices)

58506

(Zip Code)

Registrant’s telephone number, including area code: (701) 530-1000

N/A (Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Securities Exchange Act of 1934:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, par value $1.00 per shareMDUNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 or Rule 12b-2 of the Securities Exchange Act of 1934. Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 2.02. Results of Operations and Financial Condition.

On February 5, 2026, MDU Resources Group, Inc. (the “Company”) issued a news release (the “News Release”) announcing its financial results for the fourth quarter and full-year of 2025. A copy of the News Release is furnished as Exhibit 99 to this Current Report on Form 8-K, which, in its entirety, is incorporated herein by reference. The Company is webcasting a conference call on February 5, 2026 to discuss its fourth quarter and full-year 2025 financial results, during which the Company will provide an update on the business. The information contained in Item 2.02 of this Current Report on Form 8-K, including Exhibit 99, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, and shall not be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended (the “Securities Act”), or the Exchange Act, except as expressly set forth by specific reference in such filing.

Item 7.01. Regulation FD Disclosure.

In conjunction with the News Release, the Company also made available an investor presentation concerning its fourth quarter and full-year 2025 financial results, which is available under the “Investor Relations” section of the Company’s corporate website located at investor.mdu.com. Information on the Company’s corporate website is not, and will not be deemed to be, a part of this Current Report on Form 8-K or incorporated into any other filings the Company may make with the U.S. Securities and Exchange Commission. The information contained in Item 7.01 of this Current Report on Form 8-K, including Exhibit 99, shall not be deemed “filed” for purposes of Section 18 of the Exchange Act, or otherwise subject to the liabilities of that section, and shall not be deemed incorporated by reference into any filing under the Securities Act, or the Exchange Act, except as expressly set forth by specific reference in such filing.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

Exhibit No. Description

99News Release, dated February 5, 2026.

104 Cover Page Interactive Data File (embedded within the Inline XBRL document).

SIGNATURE

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

Date: February 5, 2026

MDU Resources Group, Inc.

By:/s/ Jason L. Vollmer

Jason L. Vollmer Chief Financial Officer

2025
Q3

Q3 2025 Earnings

8-K

Nov 6, 2025

0000067716-25-000087

mdu-202511060000067716false00000677162025-11-062025-11-06

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): November 6, 2025

MDU Resources Group, Inc. (Exact name of registrant as specified in its charter)

Delaware1-0348030-1133956 (State or other jurisdiction of(Commission File Number)(IRS Employer incorporation)Identification No.)

1200 West Century Avenue P.O. Box 5650 Bismarck, North Dakota (Address of principal executive offices)

58506 (Zip Code)

Registrant’s telephone number, including area code: (701) 530-1000

N/A (Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Securities Exchange Act of 1934::

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, par value $1.00 per shareMDUNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 or Rule 12b-2 of the Securities Exchange Act of 1934. Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 2.02. Results of Operations and Financial Condition.

On November 6, 2025, MDU Resources Group, Inc. (the “Company”) issued a news release (the “News Release”) announcing its financial results for the third quarter of 2025. A copy of the News Release is furnished as Exhibit 99 to this Current Report on Form 8-K, which, in its entirety, is incorporated herein by reference. The Company is webcasting a conference call on November 6, 2025, to discuss its third quarter 2025 financial results, during which the Company will provide an update on the business. The information contained in Item 2.02 of this Current Report on Form 8-K, including Exhibit 99, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, and shall not be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended (the “Securities Act”), or the Exchange Act, except as expressly set forth by specific reference in such filing.

Item 7.01. Regulation FD Disclosure.

In conjunction with the News Release, the Company also made available the Investor Presentation and Infographic. The Investor Presentation and Infographic are available under the “Investor Relations” section of the Company’s corporate website, located at investor.mdu.com. Information on the Company’s corporate website is not, and will not be deemed to be, a part of this Current Report on Form 8-K or incorporated into any other filings the Company may make with the U.S. Securities and Exchange Commission. The information contained in Item 7.01 of this Current Report on Form 8-K, including Exhibit 99, shall not be deemed “filed” for purposes of Section 18 of the Exchange Act, or otherwise subject to the liabilities of that section, and shall not be deemed incorporated by reference into any filing under the Securities Act, or the Exchange Act, except as expressly set forth by specific reference in such filing.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

Exhibit No. Description

99News Release, dated November 6, 2025.

104 Cover Page Interactive Data File (embedded within the Inline XBRL document).

2

SIGNATURE

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

MDU Resources Group, Inc.

Date: November 6, 2025 By:/s/ Jason L. Vollmer Jason L. Vollmer Chief Financial Officer

3

2025
Q2

Q2 2025 Earnings

8-K

Aug 7, 2025

0000067716-25-000073

mdu-202508070000067716false00000677162025-08-072025-08-07

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): August 7, 2025

MDU Resources Group, Inc. (Exact name of registrant as specified in its charter)

Delaware1-0348030-1133956 (State or other jurisdiction of(Commission File Number)(IRS Employer incorporation)Identification No.)

1200 West Century Avenue P.O. Box 5650 Bismarck, North Dakota (Address of principal executive offices)

58506 (Zip Code)

Registrant’s telephone number, including area code: (701) 530-1000

N/A (Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Securities Exchange Act of 1934::

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, par value $1.00 per shareMDUNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 or Rule 12b-2 of the Securities Exchange Act of 1934. Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 2.02. Results of Operations and Financial Condition.

On August 7, 2025, MDU Resources Group, Inc. (the “Company”) issued a news release (the “News Release”) announcing its financial results for the second quarter of 2025. A copy of the News Release is furnished as Exhibit 99 to this Current Report on Form 8-K, which, in its entirety, is incorporated herein by reference. The Company is webcasting a conference call on August 7, 2025, to discuss its second quarter 2025 financial results, during which the Company will provide an update on the business. The information contained in Item 2.02 of this Current Report on Form 8-K, including Exhibit 99, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, and shall not be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended (the “Securities Act”), or the Exchange Act, except as expressly set forth by specific reference in such filing.

Item 7.01. Regulation FD Disclosure.

In conjunction with the News Release, the Company also made available the Investor Presentation and Infographic. The Investor Presentation and Infographic are available under the “Investor Relations” section of the Company’s corporate website, located at investor.mdu.com. Information on the Company’s corporate website is not, and will not be deemed to be, a part of this Current Report on Form 8-K or incorporated into any other filings the Company may make with the U.S. Securities and Exchange Commission. The information contained in Item 7.01 of this Current Report on Form 8-K, including Exhibit 99, shall not be deemed “filed” for purposes of Section 18 of the Exchange Act, or otherwise subject to the liabilities of that section, and shall not be deemed incorporated by reference into any filing under the Securities Act, or the Exchange Act, except as expressly set forth by specific reference in such filing.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

Exhibit No. Description

99News Release, dated August 7, 2025.

104 Cover Page Interactive Data File (embedded within the Inline XBRL document).

2

SIGNATURE

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

MDU Resources Group, Inc.

Date: August 7, 2025 By:/s/ Jason L. Vollmer Jason L. Vollmer Chief Financial Officer

3

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