MDU Insider Trading

Net Buying · 180d
Open-Market Buys (180d)
$104K
1 insiders
Open-Market Sells (180d)
$0
0 insiders
Net Insider Flow
$104K
open market, 180d
Reporting Insiders
1
1 P/S transactions
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Build on these Form 4 transactions

The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.

Recent Form 4 Transactions

100 shown
DateInsiderRoleActionSharesPriceValue
Jun 30, 2026Durkin Marian MDirectorGrant(A)152$0
Jun 30, 2026Dosch Vernon A.DirectorGrant(A)1K$0
Mar 31, 2026Durkin Marian MDirectorGrant(A)157$0
Mar 31, 2026Dosch Vernon A.DirectorGrant(A)1K$0
Feb 18, 2026Johnson Rob L.President-WBITax withholding(F)11K$20.36$216K
Feb 18, 2026Jones Anne MChiefHRSafety&AdminOfficerTax withholding(F)12K$20.36$245K
Feb 18, 2026Kivisto Nicole APresident & CEO, DirectorTax withholding(F)36K$20.36$726K
Feb 18, 2026Senger GarretChief Utilities OfficerTax withholding(F)8K$20.36$166K
Feb 18, 2026Sievert Stephanie AChiefAccntg&RegAffairsOfficerTax withholding(F)10K$20.36$213K
Feb 18, 2026Vollmer Jason LCFOTax withholding(F)37K$20.36$749K
Feb 17, 2026Johnson Rob L.President-WBIGrant(A)6K$0
Feb 17, 2026Jones Anne MChiefHRSafety&AdminOfficerGrant(A)6K$0
Feb 17, 2026Kivisto Nicole APresident & CEO, DirectorGrant(A)45K$0
Feb 17, 2026Senger GarretChief Utilities OfficerGrant(A)7K$0
Feb 17, 2026Sievert Stephanie AChiefAccntg&RegAffairsOfficerGrant(A)5K$0
Feb 17, 2026Vollmer Jason LCFOGrant(A)15K$0
Feb 17, 2026Boese Dyke A.CIOGrant(A)4K$0
Feb 17, 2026Foti Anthony DonaldCLO & Corporate SecretaryGrant(A)8K$0
Feb 13, 2026Kelley Charles MDirectorBuy(P)5K$20.85$104K
Dec 31, 2025Dosch Vernon A.DirectorGrant(A)1K$0
Dec 31, 2025Durkin Marian MDirectorGrant(A)164$0
Nov 13, 2025Dosch Vernon A.DirectorGrant(A)7K$0
Nov 13, 2025Anderson Darrel TDirectorGrant(A)8K$0
Nov 13, 2025Durkin Marian MDirectorGrant(A)7K$0
Nov 13, 2025Jaeger Douglas W.DirectorGrant(A)7K$0
Nov 13, 2025Johnson Dennis WDirectorGrant(A)8K$0
Nov 13, 2025Kelley Charles MDirectorGrant(A)3K$0
Nov 13, 2025Miller Tammy JDirectorGrant(A)3K$0
Nov 13, 2025Patel Priti RashmikantDirectorGrant(A)5K$0
Sep 30, 2025Dosch Vernon A.DirectorGrant(A)2K$0
Sep 30, 2025Durkin Marian MDirectorGrant(A)182$0
Sep 8, 2025Vollmer Jason LCFOBuy(P)5K$16.08$80K
Aug 19, 2025Vollmer Jason LCFOBuy(P)5K$16.28$81K
Jun 30, 2025Durkin Marian MDirectorGrant(A)175$0
Jun 30, 2025Dosch Vernon A.DirectorGrant(A)2K$0
May 15, 2025Boese Dyke A.CIODiscretionary(I)8K$16.99$132K
Mar 31, 2025Dosch Vernon A.DirectorGrant(A)2K$0
Mar 31, 2025Durkin Marian MDirectorGrant(A)165$0
Feb 12, 2025Boese Dyke A.CIOGrant(A)3K$0
Feb 12, 2025Foti Anthony DonaldCLO & Corporate SecretaryGrant(A)8K$0
Feb 12, 2025Johnson Rob L.President-WBIGrant(A)6K$0
Feb 12, 2025Johnson Rob L.President-WBITax withholding(F)7K$16.83$114K
Feb 12, 2025Jones Anne MChiefHRAdmin&SafetyOfficerTax withholding(F)11K$16.83$181K
Feb 12, 2025Jones Anne MChiefHRAdmin&SafetyOfficerGrant(A)6K$0
Feb 12, 2025Kivisto Nicole APresident & CEO, DirectorGrant(A)46K$0
Feb 12, 2025Kivisto Nicole APresident & CEO, DirectorTax withholding(F)30K$16.83$510K
Feb 12, 2025Senger GarretChief Utilities OfficerGrant(A)8K$0
Feb 12, 2025Senger GarretChief Utilities OfficerTax withholding(F)7K$16.83$126K
Feb 12, 2025Sievert Stephanie AChiefAccntg&RegAffairsOfficerGrant(A)5K$0
Feb 12, 2025Sievert Stephanie AChiefAccntg&RegAffairsOfficerTax withholding(F)10K$16.83$160K
Feb 12, 2025Vollmer Jason LCFOTax withholding(F)30K$16.83$512K
Feb 12, 2025Vollmer Jason LCFOGrant(A)17K$0
Feb 10, 2025Johnson Dennis WDirectorBuy(P)30K$16.64$499K
Nov 15, 2024Anderson Darrel TDirectorGrant(A)8K$0
Nov 15, 2024Dosch Vernon A.DirectorGrant(A)1K$0
Nov 15, 2024Durkin Marian MDirectorGrant(A)3K$0
Nov 15, 2024Jaeger Douglas W.DirectorGrant(A)5K$0
Nov 15, 2024Johnson Dennis WDirectorGrant(A)10K$0
Nov 15, 2024Wang ChenxiDirectorGrant(A)8K$0
Oct 31, 2024Sparby David MDirectorGrant(A)371$29.22$11K
Sep 30, 2024Sparby David MDirectorGrant(A)1K$27.50$33K
Jun 28, 2024Sparby David MDirectorGrant(A)1K$25.12$33K
May 7, 2024Johnson Rob L.President-WBI HoldingsBuy(P)36K$25.46$924K
Mar 29, 2024Sparby David MDirectorGrant(A)1K$24.83$32K
Mar 12, 2024Rosenthal DaleDirectorBuy(P)375$22.55$8K
Feb 22, 2024Jones Anne MVP & CHRODiscretionary(I)11K$20.86$222K
Feb 15, 2024Sievert Stephanie AVP, CAO & ControllerGrant(A)15K$0
Feb 15, 2024Sievert Stephanie AVP, CAO & ControllerTax withholding(F)4K$20.85$80K
Feb 15, 2024Goodin David LDirectorTax withholding(F)47K$20.85$987K
Feb 15, 2024Jones Anne MVP & CHROTax withholding(F)4K$20.85$87K
Feb 15, 2024Jones Anne MVP & CHROGrant(A)20K$0
Feb 15, 2024Kivisto Nicole APresident & CEO, DirectorGrant(A)134K$0
Feb 15, 2024Kivisto Nicole APresident & CEO, DirectorTax withholding(F)13K$20.85$261K
Feb 15, 2024Thiede Jeffrey SPresident & CEO MDU CSGTax withholding(F)12K$20.85$251K
Feb 15, 2024Thiede Jeffrey SPresident & CEO MDU CSGGrant(A)55K$0
Feb 15, 2024Vollmer Jason LVP & CFOTax withholding(F)12K$20.85$252K
Feb 15, 2024Vollmer Jason LVP & CFOGrant(A)56K$0
Feb 15, 2024Link Margaret AVP and CIOGrant(A)16K$0
Feb 15, 2024Link Margaret AVP and CIOTax withholding(F)4K$20.85$85K
Feb 15, 2024Sanderson Paul R.VP, CLO & SecretaryGrant(A)21K$0
Feb 15, 2024Johnson Rob L.President-WBI HoldingsGrant(A)16K$0
Feb 15, 2024Johnson Rob L.President-WBI HoldingsTax withholding(F)2K$20.85$52K
Feb 15, 2024Senger GarretChief Utilities OfficerTax withholding(F)3K$20.85$60K
Feb 15, 2024Senger GarretChief Utilities OfficerGrant(A)25K$0
Jan 5, 2024Goodin David LDirectorDisposed to issuer(D)100K$0
Nov 16, 2023Anderson Darrel TDirectorGrant(A)1K$18.73$25K
Nov 15, 2023Johnson Dennis WDirectorGrant(A)9K$18.73$175K
Nov 15, 2023Gemmel James H.DirectorGrant(A)8K$18.73$150K
Nov 15, 2023Rosenthal DaleDirectorGrant(A)8K$18.73$150K
Nov 15, 2023Ryan Edward ADirectorGrant(A)8K$18.73$150K
Nov 15, 2023Sparby David MDirectorGrant(A)8K$18.73$150K
Nov 15, 2023Wang ChenxiDirectorGrant(A)8K$18.73$150K
Jul 11, 2023Johnson Rob L.President-WBI HoldingsGrant(A)4K$0
Jul 11, 2023Sanderson Paul R.VP, CLO & SecretaryGrant(A)17K$0
May 31, 2023Goodin David LPresident & CEO, DirectorGrant(A)52K$0
May 31, 2023Goodin David LPresident & CEO, DirectorGrant(A)72K$0
May 31, 2023Barth Stephanie AVP, CAO & ControllerGrant(A)5K$0
May 31, 2023Barth Stephanie AVP, CAO & ControllerGrant(A)6K$0
May 31, 2023Link Margaret AVP and CIOGrant(A)5K$0
May 31, 2023Link Margaret AVP and CIOGrant(A)6K$0

Data Source

Insider transactions sourced from SEC EDGAR Form 4 filings, normalized within minutes of acceptance. "Buy"/"Sell" mark open-market transactions (codes P/S), the tradeable signal. Awards, option exercises and tax-withholding are shown with their raw code. All data is public domain.

Coverage: Form 4 filings indexed 2021-03-292026-07-11. Earlier history is backfilling; this window widens as it deepens.

Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).