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Mdu Resources Group Inc. (MDU)

Mdu Resources Group Inc. (MDU) Insider Trading

Directors, officers and holders of more than 10% of MDU report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.

Recent Form 4 transactions

The 50 most recent of 63 transactions on file: 3 with code P, 0 with code S and 47 with other codes.

DateInsiderCodeShares
Sep 30, 2026Dosch Vernon A.A Award1,462
Sep 30, 2026DURKIN MARIAN MA Award172
Jun 30, 2026DURKIN MARIAN MA Award152
Jun 30, 2026Dosch Vernon A.A Award1,293
Mar 31, 2026DURKIN MARIAN MA Award157
Mar 31, 2026Dosch Vernon A.A Award1,334
Feb 18, 2026Sievert Stephanie AF Tax Payment10,438
Feb 18, 2026Vollmer Jason LF Tax Payment36,766
Feb 18, 2026Jones Anne MF Tax Payment12,010
Feb 18, 2026Senger GarretF Tax Payment8,167
Feb 18, 2026Johnson Rob L.F Tax Payment10,630
Feb 18, 2026Kivisto Nicole AF Tax Payment35,668
Feb 17, 2026Johnson Rob L.A Award5,830
Feb 17, 2026Vollmer Jason LA Award15,229
Feb 17, 2026Senger GarretA Award6,920
Feb 17, 2026Sievert Stephanie AA Award4,544
Feb 17, 2026Jones Anne MA Award5,523
Feb 17, 2026Kivisto Nicole AA Award45,037
Feb 17, 2026Boese Dyke A.A Award3,702
Feb 17, 2026Foti Anthony DonaldA Award8,161
Feb 13, 2026KELLEY CHARLES MP Purchase5,000
Dec 31, 2025DURKIN MARIAN MA Award164
Dec 31, 2025Dosch Vernon A.A Award1,394
Nov 13, 2025Patel Priti RashmikantA Award4,849
Nov 13, 2025Miller Tammy JA Award3,031
Nov 13, 2025KELLEY CHARLES MA Award3,031
Nov 13, 2025JOHNSON DENNIS WA Award7,779
Nov 13, 2025Jaeger Douglas W.A Award7,274
Nov 13, 2025ANDERSON DARREL TA Award8,082
Nov 13, 2025Dosch Vernon A.A Award7,274
Nov 13, 2025DURKIN MARIAN MA Award7,274
Sep 30, 2025Dosch Vernon A.A Award1,541
Sep 30, 2025DURKIN MARIAN MA Award182
Sep 8, 2025Vollmer Jason LP Purchase5,000
Aug 19, 2025Vollmer Jason LP Purchase5,000
Jun 30, 2025Dosch Vernon A.A Award1,658
Jun 30, 2025DURKIN MARIAN MA Award175
May 15, 2025Boese Dyke A.I Discretionary7,749
Mar 31, 2025Dosch Vernon A.A Award1,650
Mar 31, 2025DURKIN MARIAN MA Award165
Feb 12, 2025Kivisto Nicole AF Tax Payment30,316
Feb 12, 2025Foti Anthony DonaldA Award8,473
Feb 12, 2025Kivisto Nicole AA Award45,969
Feb 12, 2025Boese Dyke A.A Award3,382
Feb 12, 2025Johnson Rob L.F Tax Payment6,778
Feb 12, 2025Johnson Rob L.A Award5,785
Feb 12, 2025Jones Anne MF Tax Payment10,778
Feb 12, 2025Jones Anne MA Award6,026
Feb 12, 2025Senger GarretA Award7,514
Feb 12, 2025Senger GarretF Tax Payment7,470

The full Form 4 history is on the MDU company page (Insider Trades card, View all).

Questions about this data

Which insider transactions are open-market trades?

Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.

How quickly are insider trades reported?

A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.

Who has to file Form 4?

Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.

Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.