MDU Resources Group, Inc. (MDU)
NYSE: MDU · Mining & Quarrying of Nonmetallic Minerals (No Fuels) · Bismarck, ND · filing with the SEC since 1994
Grade4.5
◀ Past 4.3● Present 5.2▶ Future 4.0
Who owns MDU Resources Group, Inc.
As filed with the SECHolders of 5% or more
4
Barrow Hanley Mewhinney & Strauss LLC holds 6.3% of Common Stock, as its SCHEDULE 13G filed Aug 12, 2026 says.
Directors and officers
16
report now, of 43 people on the record since 2006. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 4 named at left.
Holders of 5% or moreshare of the class, as filed
Barrow Hanley Mewhinney & Strauss LLC
SCHEDULE 13G · filed Aug 12, 2026 · Common Stock · 6.72% in May 13, 2026
Vanguard Portfolio Management
SCHEDULE 13G · filed Apr 29, 2026 · Common Stock
Vanguard Capital Management
SCHEDULE 13G · filed Apr 30, 2026 · Common Stock
Dimensional Fund Advisors LP
SCHEDULE 13G · filed Oct 8, 2026 · Common Stock · 5% in Jul 14, 2026
The Vanguard Group
SCHEDULE 13G/A · filed Mar 27, 2026 · Common Stock · reported falling below 5%, from 11.3% in Jan 30, 2025
What MDU reports owning in othersstakes of 5% or more, and other ties
Other ties the annual report names
Knife River Corporation
An entity · legal entity · owns, named in the 10-K filed Feb 20, 2026
Montana-Dakota Utilities Co.
An entity · legal entity · owns, named in the 10-K filed Feb 20, 2026
19 subsidiaries in 1 country, from the list filed with the 10-K filed Feb 20, 2026.
Insider tradesForm 4
0sales
1purchases
0sales on a scheduled plan
0people selling
$0sold, in dollars
$100,000bought, in dollars
Open-market trades on Form 4 from Oct 1, 2025 to Oct 1, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2026 runs to Oct 1, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window1 of 43 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| Kelley Charles M | director | 0 | $0 | 0 | 1 | $100,000 |