MDU

Mdu Resources Group INC

Insider trading activity for Mdu Resources Group INC, straight from SEC Form 4 filings. Net figures below count open-market buys and sales only — grants, option exercises and tax withholding are excluded because they are compensation, not decisions to trade.

Past 3 months

net buying

Bought(0 · 0 insiders): $0
Sold(0 · 0 insiders): $0

Past 6 months

net buying

Bought(0 · 0 insiders): $0
Sold(0 · 0 insiders): $0

Past 12 months

+$104.2K

net buying

Bought(1 · 1 insiders): $104.2K
Sold(0 · 0 insiders): $0

Transaction history

The 46 most recent Form 4 transactions.

Open in screener →

Insider transactions, newest first: date, security, transaction type, size and a link to the filing each row came from.
Date	Insider	Role	Type	Shares	Price	Value	Δ Own	Filing
Nov 12	Anderson Darrel T	Director	AGRANT	8,951	—	—	+50.9%	Open the original filing on SEC.gov
Nov 12	Dosch Vernon A.	Director	AGRANT	7,672	—	—	+37.5%	Open the original filing on SEC.gov
Nov 12	Durkin Marian M	Director	AGRANT	7,672	—	—	+64.8%	Open the original filing on SEC.gov
Nov 12	Kelley Charles M	Director	AGRANT	7,672	—	—	+95.3%	Open the original filing on SEC.gov
Nov 12	Jaeger Douglas W.	Director	AGRANT	7,672	—	—	+60.3%	Open the original filing on SEC.gov
Nov 12	Miller Tammy J	Director	AGRANT	7,672	—	—	+127.2%	Open the original filing on SEC.gov
Nov 12	Johnson Dennis W	Director Emeritus	AGRANT	7,672	—	—	+4.1%	Open the original filing on SEC.gov
Nov 12	Patel Priti Rashmikant	Director	AGRANT	7,672	—	—	+158.2%	Open the original filing on SEC.gov
Sep 30	Durkin Marian M	Director	AGRANT	172	—	—	+1.5%	Open the original filing on SEC.gov
Sep 30	Dosch Vernon A.	Director	AGRANT	1,462	—	—	+7.7%	Open the original filing on SEC.gov
Jun 30	Dosch Vernon A.	Director	AGRANT	1,293	—	—	+7.4%	Open the original filing on SEC.gov
Jun 30	Durkin Marian M	Director	AGRANT	152	—	—	+1.3%	Open the original filing on SEC.gov
Mar 31	Dosch Vernon A.	Director	AGRANT	1,334	—	—	+8.3%	Open the original filing on SEC.gov
Mar 31	Durkin Marian M	Director	AGRANT	157	—	—	+1.4%	Open the original filing on SEC.gov
Feb 18	Vollmer Jason L	CFO	FTAX	36,766	$20.36	$748.6K	-10.2%	Open the original filing on SEC.gov
Feb 18	Sievert Stephanie A	ChiefAccntg&RegAffairsOf…	FTAX	10,438	$20.36	$212.5K	-10.3%	Open the original filing on SEC.gov
Feb 18	Senger Garret	Chief Utilities Officer	FTAX	8,167	$20.36	$166.3K	-7.5%	Open the original filing on SEC.gov
Feb 18	Kivisto Nicole A	President & CEO	FTAX	35,668	$20.36	$726.2K	-6.1%	Open the original filing on SEC.gov
Feb 18	Jones Anne M	ChiefHRSafety&AdminOffic…	FTAX	12,010	$20.36	$244.5K	-9.2%	Open the original filing on SEC.gov
Feb 18	Johnson Rob L.	President-WBI	FTAX	10,630	$20.36	$216.4K	-11.4%	Open the original filing on SEC.gov
Feb 17	Vollmer Jason L	CFO	AGRANT	15,229	—	—	+4.4%	Open the original filing on SEC.gov
Feb 17	Sievert Stephanie A	ChiefAccntg&RegAffairsOf…	AGRANT	4,544	—	—	+4.7%	Open the original filing on SEC.gov
Feb 17	Senger Garret	Chief Utilities Officer	AGRANT	6,920	—	—	+6.8%	Open the original filing on SEC.gov
Feb 17	Kivisto Nicole A	President & CEO	AGRANT	45,037	—	—	+8.4%	Open the original filing on SEC.gov
Feb 17	Jones Anne M	ChiefHRSafety&AdminOffic…	AGRANT	5,523	—	—	+4.4%	Open the original filing on SEC.gov
Feb 17	Johnson Rob L.	President-WBI	AGRANT	5,830	—	—	+6.7%	Open the original filing on SEC.gov
Feb 17	Foti Anthony Donald	CLO & Corporate…	AGRANT	8,161	—	—	+96.3%	Open the original filing on SEC.gov
Feb 17	Boese Dyke A.	CIO	AGRANT	3,702	—	—	+109.5%	Open the original filing on SEC.gov
Feb 13	Kelley Charles M	Director	PBUY★	5,000	$20.85	$104.2K	+165.0%	Open the original filing on SEC.gov
Dec 31, 2025	Dosch Vernon A.	Director	AGRANT	1,394	—	—	+9.5%	Open the original filing on SEC.gov
Dec 31, 2025	Durkin Marian M	Director	AGRANT	164	—	—	+1.5%	Open the original filing on SEC.gov
Nov 13, 2025	Patel Priti Rashmikant	Director	AGRANT	4,849	—	—	—	Open the original filing on SEC.gov
Nov 13, 2025	Miller Tammy J	Director	AGRANT	3,031	—	—	+101.0%	Open the original filing on SEC.gov
Nov 13, 2025	Kelley Charles M	Director	AGRANT	3,031	—	—	—	Open the original filing on SEC.gov
Nov 13, 2025	Jaeger Douglas W.	Director	AGRANT	7,274	—	—	+133.4%	Open the original filing on SEC.gov
Nov 13, 2025	Johnson Dennis W	Director	AGRANT	7,779	—	—	+4.3%	Open the original filing on SEC.gov
Nov 13, 2025	Dosch Vernon A.	Director	AGRANT	7,274	—	—	+97.5%	Open the original filing on SEC.gov
Nov 13, 2025	Durkin Marian M	Director	AGRANT	7,274	—	—	+185.1%	Open the original filing on SEC.gov
Nov 13, 2025	Anderson Darrel T	Director	AGRANT	8,082	—	—	+85.0%	Open the original filing on SEC.gov
Sep 30, 2025	Dosch Vernon A.	Director	AGRANT	1,541	—	—	+26.0%	Open the original filing on SEC.gov
Sep 30, 2025	Durkin Marian M	Director	AGRANT	182	—	—	+4.9%	Open the original filing on SEC.gov
Sep 8, 2025	Vollmer Jason L	CFO	PBUY	5,000	$16.08	$80.4K	+1.5%	Open the original filing on SEC.gov
Aug 19, 2025	Vollmer Jason L	CFO	PBUY	5,000	$16.28	$81.4K	+1.5%	Open the original filing on SEC.gov
Jun 30, 2025	Dosch Vernon A.	Director	AGRANT	1,658	—	—	+38.9%	Open the original filing on SEC.gov
Jun 30, 2025	Durkin Marian M	Director	AGRANT	175	—	—	+4.9%	Open the original filing on SEC.gov
May 15, 2025	Boese Dyke A.	CIO	IDISCR	7,748.65	$16.99	$131.6K	+81.3%	Open the original filing on SEC.gov

AGRANT—

Anderson Darrel T · DirectorNov 12

8,951 sh · +50.9% own

AGRANT—

Dosch Vernon A. · DirectorNov 12

7,672 sh · +37.5% own

AGRANT—

Durkin Marian M · DirectorNov 12

7,672 sh · +64.8% own

AGRANT—

Kelley Charles M · DirectorNov 12

7,672 sh · +95.3% own

AGRANT—

Jaeger Douglas W. · DirectorNov 12

7,672 sh · +60.3% own

AGRANT—

Miller Tammy J · DirectorNov 12

7,672 sh · +127.2% own

AGRANT—

Johnson Dennis W · Director EmeritusNov 12

7,672 sh · +4.1% own

AGRANT—

Patel Priti Rashmikant · DirectorNov 12

7,672 sh · +158.2% own

AGRANT—

Durkin Marian M · DirectorSep 30

172 sh · +1.5% own

AGRANT—

Dosch Vernon A. · DirectorSep 30

1,462 sh · +7.7% own

AGRANT—

Dosch Vernon A. · DirectorJun 30

1,293 sh · +7.4% own

AGRANT—

Durkin Marian M · DirectorJun 30

152 sh · +1.3% own

AGRANT—

Dosch Vernon A. · DirectorMar 31

1,334 sh · +8.3% own

AGRANT—

Durkin Marian M · DirectorMar 31

157 sh · +1.4% own

FTAX$748.6K

Vollmer Jason L · CFOFeb 18

36,766 sh @ $20.36 · -10.2% own

FTAX$212.5K

Sievert Stephanie A · ChiefAccntg&RegAff…Feb 18

10,438 sh @ $20.36 · -10.3% own

FTAX$166.3K

Senger Garret · Chief Utilities…Feb 18

8,167 sh @ $20.36 · -7.5% own

FTAX$726.2K

Kivisto Nicole A · President & CEOFeb 18

35,668 sh @ $20.36 · -6.1% own

FTAX$244.5K

Jones Anne M · ChiefHRSafety&Admi…Feb 18

12,010 sh @ $20.36 · -9.2% own

FTAX$216.4K

Johnson Rob L. · President-WBIFeb 18

10,630 sh @ $20.36 · -11.4% own

AGRANT—

Vollmer Jason L · CFOFeb 17

15,229 sh · +4.4% own

AGRANT—

Sievert Stephanie A · ChiefAccntg&RegAff…Feb 17

4,544 sh · +4.7% own

AGRANT—

Senger Garret · Chief Utilities…Feb 17

6,920 sh · +6.8% own

AGRANT—

Kivisto Nicole A · President & CEOFeb 17

45,037 sh · +8.4% own

AGRANT—

Jones Anne M · ChiefHRSafety&Admi…Feb 17

5,523 sh · +4.4% own

AGRANT—

Johnson Rob L. · President-WBIFeb 17

5,830 sh · +6.7% own

AGRANT—

Foti Anthony Donald · CLO & Corporate…Feb 17

8,161 sh · +96.3% own

AGRANT—

Boese Dyke A. · CIOFeb 17

3,702 sh · +109.5% own

PBUY★$104.2K

Kelley Charles M · DirectorFeb 13

5,000 sh @ $20.85 · +165.0% own

AGRANT—

Dosch Vernon A. · DirectorDec 31, 2025

1,394 sh · +9.5% own

AGRANT—

Durkin Marian M · DirectorDec 31, 2025

164 sh · +1.5% own

AGRANT—

Patel Priti Rashmikant · DirectorNov 13, 2025

4,849 sh

AGRANT—

Miller Tammy J · DirectorNov 13, 2025

3,031 sh · +101.0% own

AGRANT—

Kelley Charles M · DirectorNov 13, 2025

3,031 sh

AGRANT—

Jaeger Douglas W. · DirectorNov 13, 2025

7,274 sh · +133.4% own

AGRANT—

Johnson Dennis W · DirectorNov 13, 2025

7,779 sh · +4.3% own

AGRANT—

Dosch Vernon A. · DirectorNov 13, 2025

7,274 sh · +97.5% own

AGRANT—

Durkin Marian M · DirectorNov 13, 2025

7,274 sh · +185.1% own

AGRANT—

Anderson Darrel T · DirectorNov 13, 2025

8,082 sh · +85.0% own

AGRANT—

Dosch Vernon A. · DirectorSep 30, 2025

1,541 sh · +26.0% own

AGRANT—

Durkin Marian M · DirectorSep 30, 2025

182 sh · +4.9% own

PBUY$80.4K

Vollmer Jason L · CFOSep 8, 2025

5,000 sh @ $16.08 · +1.5% own

PBUY$81.4K

Vollmer Jason L · CFOAug 19, 2025

5,000 sh @ $16.28 · +1.5% own

AGRANT—

Dosch Vernon A. · DirectorJun 30, 2025

1,658 sh · +38.9% own

AGRANT—

Durkin Marian M · DirectorJun 30, 2025

175 sh · +4.9% own

IDISCR$131.6K

Boese Dyke A. · CIOMay 15, 2025

7,748.65 sh @ $16.99 · +81.3% own

Filing record

How quickly insiders here report their trades. Section 16 allows two business days from the transaction.

1 of 39 filings we hold was filed after the two-business-day deadline. The furthest past the deadline was 38 business days late.

Form 4 filings made after the two-business-day deadline, with the transaction date, the filing date and the number of business days between them.
Traded	Filed	Insider	Past deadline	Largest line	Source
May 15, 2025	Jul 15, 2025	Boese Dyke A.CIO	38days · about 2 months	$131.6K	Filing ↗

Boese Dyke A.CIO

38days · about 2 months

Traded May 15, 2025 · filed Jul 15, 2025Filing ↗

Counted in business days from the transaction date, or the deemed execution date where the filing reports one, excluding weekends and federal holidays. How this is measured · All late filings

Insiders at this company

Everyone who has filed a Form 4 for this issuer.