MDU RESOURCES GROUP INC (MDU) Insider Trading & SEC Filings

Updated Jul 16, 2026 · Last SEC filing 2026-07-02

MDU RESOURCES GROUP INC (MDU) has filed 2 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-07-02. 2 Form 8-K material event filings were reported by MDU in the last 90 days. InsiderAlpha tracks every MDU SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.

About MDU RESOURCES GROUP INC (MDU)

SIC classificationMining & Quarrying of Nonmetallic Minerals (No Fuels) (SIC 1400)
SEC CIK0000067716

90-Day SEC Filing Activity

Form 4 filings (90d)2
Form 8-K filings (90d)2
Latest Form 4 filing2026-07-02

Recent MDU Insider Transactions (Form 4)

DateInsiderRoleTransactionSharesPriceValueFiling
DURKIN MARIAN MDirectorA — Grant or award152$0.00—SEC
Dosch Vernon A.DirectorA — Grant or award1.3K$0.00—SEC
Dosch Vernon A.DirectorA — Grant or award1.3K$0.00—SEC
DURKIN MARIAN MDirectorA — Grant or award157$0.00—SEC
Vollmer Jason LCFOF — Tax withholding / forfeiture36.8K$20.36$749KSEC
Johnson Rob L.President-WBIF — Tax withholding / forfeiture10.6K$20.36$216KSEC
Kivisto Nicole APresident & CEOF — Tax withholding / forfeiture35.7K$20.36$726KSEC
Sievert Stephanie AChiefAccntg&RegAffairsOfficerF — Tax withholding / forfeiture10.4K$20.36$213KSEC
Senger GarretChief Utilities OfficerF — Tax withholding / forfeiture8.2K$20.36$166KSEC
Jones Anne MChiefHRSafety&AdminOfficerF — Tax withholding / forfeiture12.0K$20.36$245KSEC
Kivisto Nicole APresident & CEOA — Grant or award45.0K$0.00—SEC
Boese Dyke A.CIOA — Grant or award3.7K$0.00—SEC
Vollmer Jason LCFOA — Grant or award15.2K$0.00—SEC
Senger GarretChief Utilities OfficerA — Grant or award6.9K$0.00—SEC
Foti Anthony DonaldCLO & Corporate SecretaryA — Grant or award8.2K$0.00—SEC

All transactions sourced from SEC EDGAR Form 4 filings for MDU RESOURCES GROUP INC (MDU). Updated in real time as new filings are submitted to the SEC.

Most-Active MDU Insiders — Last 90 Days

InsiderForm 4 filingsTotal transaction value
DURKIN MARIAN M1—
Dosch Vernon A.1—

Recent MDU Form 8-K Material Events

Recent Insider Filings

Form 4 Transaction Code Reference

SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in MDU insider filings:

POpen-market purchase by the insider
SOpen-market sale by the insider
AGrant, award, or other acquisition from the issuer
MExercise or conversion of derivative security (e.g. options)
FPayment of exercise price or tax liability via share withholding
GBona-fide gift of securities
DDisposition to the issuer (e.g. share buyback participation)
JOther acquisition or disposition
XExercise of in-the-money or at-the-money derivative security
CConversion of derivative security
VTransaction voluntarily reported earlier than required

MDU Insider Trading — FAQ

What is the latest insider trade for MDU?
MDU RESOURCES GROUP INC (MDU) had 2 insider filings in the last 90 days, with the most recent on 2026-07-02. InsiderAlpha tracks every Form 4, 10-K, 10-Q, and 8-K filing in real time.
How many insiders are buying MDU stock?
0 insider purchases of MDU were filed in the last 90 days.
How many insiders are selling MDU stock?
0 insider sales of MDU were filed in the last 90 days.
Where can I see MDU SEC filings (Form 4, 10-K, 10-Q, 8-K)?
InsiderAlpha aggregates every MDU SEC filing — Form 4 insider transactions, 10-K and 10-Q quarterly reports, and 8-K material event disclosures — in one timeline.

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