MDU RESOURCES GROUP INC

Mining & Quarrying of Nonmetallic Minerals (No Fuels)

MDU Mining & Metals People in Mining & Metals SEC CIK 0000067716 ↗

Computed from SEC EDGAR filings and closing prices — not copied from any wealth ranking. Dataset . How we calculate this.

Market capitalisation
$4.04B
210,349,456 shares Covers every share class this company has on file.
Insiders on file
9
people who have filed Form 3, 4 or 5 naming this issuer
Value of insider-held stock
$31.53M
from the holdings reported on Forms 3/4/5; this figure has no separate as-of date on file
Insider-held share of market cap
0.78%
insider-held value divided by market capitalisation

What MDU RESOURCES GROUP INC reports

Revenue and net income below are for fiscal period FY2025, the period label carried by this company’s own annual XBRL filings to the SEC. Fiscal years do not line up between companies — one company’s FY2026 can cover much the same months as another’s FY2025 — so compare the periods, not just the numbers.

Revenue
$1.88B
FY2025 annual revenue, from this company’s own annual XBRL filings to the SEC
Net income
$190.40M
FY2025 profit for the period, from this company’s own annual XBRL filings to the SEC
Employees
2,096
Yahoo Finance
Where the employee count comes from

Headcount comes from Yahoo Finance, not from a filing. The date beside it is the day we retrieved the figure — it is not the date the company counted its staff, and Yahoo does not publish that date. Unlike the SEC filings behind the other figures on this page, this one carries no open licence, so we publish the number and nothing else from that source.

Insiders at MDU RESOURCES GROUP INC

Shares is what each person last reported holding here.

Everyone below has filed at least one insider report against this company.

Value is that share count priced at the same closing price used everywhere else on this site. A row priced from only some of a person’s securities says so — we do not quietly present a partial sum as a complete one.

Rows are grouped by the role each person reports.

The role comes from the relationship boxes a person ticks on their own insider filings — officer, director, ten per cent owner — not from anything we infer. Somebody who is both an officer and a director appears once, in the combined group, so the row count still matches the figure at the top of this page. Where no filing states a role we say so instead of guessing one.

People who file insider reports against MDU RESOURCES GROUP INC.
Insider Reported role Shares Value Last action
Officers 4
Anne M Jones Other Executive 129,205 $2.53M F Shares withheld for taxes Feb 18, 2026 position reported
Rob L Johnson President 126,612 $2.48M F Shares withheld for taxes Feb 18, 2026 position reported
Garret Senger Other Executive 125,187 $2.45M F Shares withheld for taxes Feb 18, 2026 position reported
Stephanie A Sievert Other Executive 92,769 $1.82M F Shares withheld for taxes Feb 18, 2026 position reported
Officers who also sit on the board 3
Nicole A Kivisto CEO 564,350 $11.04M F Shares withheld for taxes Feb 18, 2026 position reported
Jason L Vollmer CFO 333,530 $6.53M F Shares withheld for taxes Feb 18, 2026 position reported
Charles M. Kelley Executive 8,031 $157.2K P Open-market purchase Feb 13, 2026 position reported
Directors 2
Dennis W. Johnson Board Member 188,108 $3.68M A Grant or award Nov 13, 2025 position reported
David M. Sparby Board Member 43,463 $850.6K — position reported

Events from filings

Detected automatically in the filings linked below. Each headline is built from the numbers in those filings, not written by a model. Newest first; events older than 45 days stay listed and are marked as older.

Charles M. Kelley bought 5,000 MDU RESOURCES GROUP INC (MDU) shares for $104,250 on Feb 13, 2026

Unusual change in a direct holding

Flagged because the change that day in the shares this person holds directly was unusually large compared with their own earlier changes. The rows below are the open-market trades reported that day; under each share count is the balance the filing reports after that line.

Charles M. Kelley bought 5,000 MDU RESOURCES GROUP INC (MDU) shares for $104,250 on Feb 13, 2026
Date Insider Transaction Shares Price Value Filing
Feb 13, 2026 Charles M. Kelley P Open-market purchase 5,000 held after: 8,031 $20.85 $104,250 SEC filing ↗

Source: SEC EDGAR (United States); every row links to where it was published. Event computed Sep 14, 2026.

Recent insider transactions

Of the 32 rows we hold, 5 are open-market purchases (P) and 0 open-market sales — the only codes we count as buying or selling.

The rest — awards, shares withheld to pay tax, option exercises, gifts and so on — follow from an employment contract or a transfer arranged off-market, not from a decision to buy or sell, so counting them would turn this into a pay table.

A price of 0.00 is a real reported figure on gifts (G) and share awards (A) — not a gap in our data.

Insider transactions disclosed to the SEC for MDU RESOURCES GROUP INC, newest first, each with the filing behind it.
Date Insider Transaction Shares Price Value Filing
Feb 18, 2026 Garret Senger F Shares withheld for taxes 8,167 $20.36 $166.3K SEC filing ↗
Feb 18, 2026 Rob L Johnson F Shares withheld for taxes 10,630 $20.36 $216.4K SEC filing ↗
Feb 18, 2026 Stephanie A Sievert F Shares withheld for taxes 10,438 $20.36 $212.5K SEC filing ↗
Feb 18, 2026 Anne M Jones F Shares withheld for taxes 12,010 $20.36 $244.5K SEC filing ↗
Feb 18, 2026 Jason L Vollmer F Shares withheld for taxes 36,766 $20.36 $748.6K SEC filing ↗
Feb 18, 2026 Nicole A Kivisto F Shares withheld for taxes 35,668 $20.36 $726.2K SEC filing ↗
Feb 17, 2026 Garret Senger A Grant or award 6,920 $0.00 $0 SEC filing ↗
Feb 17, 2026 Rob L Johnson A Grant or award 5,830 $0.00 $0 SEC filing ↗
Feb 17, 2026 Stephanie A Sievert A Grant or award 4,544 $0.00 $0 SEC filing ↗
Feb 17, 2026 Anne M Jones A Grant or award 5,523 $0.00 $0 SEC filing ↗
Feb 17, 2026 Jason L Vollmer A Grant or award 15,229 $0.00 $0 SEC filing ↗
Feb 17, 2026 Nicole A Kivisto A Grant or award 45,037 $0.00 $0 SEC filing ↗
Feb 13, 2026 Charles M. Kelley P Open-market purchase 5,000 $20.85 $104.3K SEC filing ↗
Nov 13, 2025 Charles M. Kelley A Grant or award 3,031 $0.00 $0 SEC filing ↗
Nov 13, 2025 Dennis W. Johnson A Grant or award 7,779 $0.00 $0 SEC filing ↗
Sep 8, 2025 Jason L Vollmer P Open-market purchase 5,000 $16.08 $80.4K SEC filing ↗
Aug 19, 2025 Jason L Vollmer P Open-market purchase 5,000 $16.28 $81.4K SEC filing ↗
Feb 12, 2025 Garret Senger F Shares withheld for taxes 7,470 $16.83 $125.7K SEC filing ↗
Feb 12, 2025 Garret Senger A Grant or award 7,514 $0.00 $0 SEC filing ↗
Feb 12, 2025 Rob L Johnson F Shares withheld for taxes 6,778 $16.83 $114.1K SEC filing ↗
Feb 12, 2025 Rob L Johnson A Grant or award 5,785 $0.00 $0 SEC filing ↗
Feb 12, 2025 Stephanie A Sievert F Shares withheld for taxes 9,506 $16.83 $160.0K SEC filing ↗
Feb 12, 2025 Stephanie A Sievert A Grant or award 4,974 $0.00 $0 SEC filing ↗
Feb 12, 2025 Anne M Jones A Grant or award 6,026 $0.00 $0 SEC filing ↗
Feb 12, 2025 Anne M Jones F Shares withheld for taxes 10,778 $16.83 $181.4K SEC filing ↗

From SEC Form 4 filings. Every row links to the filing it came from. How we calculate this.

What a Form 4 is

The report an officer, director or large shareholder must file after trading their own company’s stock.

Corporate ownership links — what this company owns

Corporate ownership links for MDU RESOURCES GROUP INC

What MDU RESOURCES GROUP INC owns

This company files as an owner of the companies below.

A name in plain text is the end of the trail: we hold the filing that names it, but no separate record to open.

MDU RESOURCES GROUP INC
Being named on an ownership form is not the same as legal parent–subsidiary control.

That relationship only holds if the filing says so. The map draws at most eight holdings per level, stops after two levels, and never doubles back on a name it has already passed through.

See the full ownership map — every entity that files as an owner of a US public company.

Subsidiaries — 19 legal entities

Subsidiaries of MDU RESOURCES GROUP INC

19 legal entities named in the subsidiary exhibit filed with this company’s most recent 10-K. . Filing on SEC.gov.

This is not the full list. SEC rules only require a company to name its significant subsidiaries.

What that leaves out

Smaller entities are left out of the exhibit entirely. A short list here means a short exhibit — it does not mean the company owns nothing else. Nothing on this page is inferred: every name below is copied from the filing.

Subsidiaries MDU RESOURCES GROUP INC names in its most recent annual report, with the place each one is organised.
Subsidiary Organised in
Cascade Natural Gas Corporation Washington
CEHI, LLC Delaware
Centennial Holdings Capital LLC Delaware
Fidelity Exploration & Production Company Delaware
FutureSource Capital Corp. Delaware
Intermountain Gas Company Idaho
InterSource Insurance Company Vermont
MDU BenefitCo II, Inc. Delaware
MDU BenefitCo, LLC Delaware
MDU BPT BenefitCo, Inc. Delaware
MDU Energy Capital, LLC Delaware
Montana-Dakota Utilities Co. Delaware
Prairie Cascade Energy Holdings, LLC Delaware
Prairie Intermountain Energy Holdings, LLC Delaware
WBI Canadian Pipeline, Ltd. Federally Chartered
WBI Energy Midstream, LLC Colorado
WBI Energy Transmission, Inc. Delaware
WBI Energy, Inc. Delaware
WBI Holdings, Inc. Delaware
What counts as a subsidiary

A subsidiary is a separate legal entity this company controls; it is not the same thing as a brand, a division or an office. These entities do not file with the SEC in their own right, so there is no separate page to open for them.

Think a number here is wrong? Open the linked filing and compare — how to report it.

Sources and technical notes

Every figure on this page comes from filings to the U.S. SEC via EDGAR. Nothing here is estimated, and nothing is taken from press coverage or company websites.

Share count: cover page of the latest filing (dei:EntityCommonStockSharesOutstanding), taken from MDU RESOURCES GROUP INC’s own filings and multiplied by our closing price. Full method.

What that share count means

the share count the company itself prints on the cover of its most recent filing, as of the date it signed that filing.

We do not take a market cap from a data vendor, and we do not estimate one: the figure is a share count from MDU RESOURCES GROUP INC’s own SEC filings multiplied by the closing price we hold for the same stock.