MDU (MDU Resources Group, Inc.)
Insider Trading Activity
Every open-market purchase and sale reported by MDU officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-01 | MARIAN M DURKIN | Director | A | — | — |
| 2026-07-01 | Vernon A. Dosch | Director | A | — | — |
| 2026-04-01 | Vernon A. Dosch | Director | A | — | — |
| 2026-04-01 | MARIAN M DURKIN | Director | A | — | — |
| 2026-02-19 | Rob L. Johnson | President-WBI | MIXED | — | — |
| 2026-02-19 | Anne M Jones | ChiefHRSafety&AdminOfficer | MIXED | — | — |
| 2026-02-19 | Nicole A Kivisto | President & CEO | MIXED | — | — |
| 2026-02-19 | Garret Senger | Chief Utilities Officer | MIXED | — | — |
| 2026-02-19 | Dyke A. Boese | CIO | A | — | — |
| 2026-02-19 | Stephanie A Sievert | ChiefAccntg&RegAffairsOfficer | MIXED | — | — |
| 2026-02-19 | Anthony Donald Foti | CLO & Corporate Secretary | A | — | — |
| 2026-02-19 | Jason L Vollmer | CFO | MIXED | — | — |
| 2026-02-17 | CHARLES M KELLEY | Director | Buy | — | — |
| 2026-01-02 | Vernon A. Dosch | Director | A | — | — |
| 2026-01-02 | MARIAN M DURKIN | Director | A | — | — |
| 2025-11-14 | Vernon A. Dosch | Director | A | — | — |
| 2025-11-14 | DARREL T ANDERSON | Director | A | — | — |
| 2025-11-14 | Douglas W. Jaeger | Director | A | — | — |
| 2025-11-14 | MARIAN M DURKIN | Director | A | — | — |
| 2025-11-14 | DENNIS W JOHNSON | Director | A | — | — |
| 2025-11-14 | CHARLES M KELLEY | Director | A | — | — |
| 2025-11-14 | Tammy J Miller | Director | A | — | — |
| 2025-11-14 | Priti Rashmikant Patel | Director | A | — | — |
| 2025-10-01 | Vernon A. Dosch | Director | A | — | — |
| 2025-10-01 | MARIAN M DURKIN | Director | A | — | — |
| 2025-09-09 | Jason L Vollmer | CFO | Buy | — | — |
| 2025-08-19 | Jason L Vollmer | CFO | Buy | — | — |
| 2025-07-16 | Dyke A. Boese | CIO | I | — | — |
| 2025-07-01 | MARIAN M DURKIN | Director | A | — | — |
| 2025-07-01 | Vernon A. Dosch | Director | A | — | — |
| 2025-04-01 | Vernon A. Dosch | Director | A | — | — |
| 2025-04-01 | MARIAN M DURKIN | Director | A | — | — |
| 2025-02-14 | Dyke A. Boese | CIO | A | — | — |
| 2025-02-14 | Anthony Donald Foti | CLO & Corporate Secretary | A | — | — |
| 2025-02-14 | Rob L. Johnson | President-WBI | MIXED | — | — |
| 2025-02-14 | Anne M Jones | ChiefHRAdmin&SafetyOfficer | MIXED | — | — |
| 2025-02-14 | Nicole A Kivisto | President & CEO | MIXED | — | — |
| 2025-02-14 | Garret Senger | Chief Utilities Officer | MIXED | — | — |
| 2025-02-14 | Stephanie A Sievert | ChiefAccntg&RegAffairsOfficer | MIXED | — | — |
| 2025-02-14 | Jason L Vollmer | CFO | MIXED | — | — |
| 2025-02-10 | DENNIS W JOHNSON | Director | Buy | — | — |
| 2024-11-19 | DARREL T ANDERSON | Director | A | — | — |
| 2024-11-19 | Vernon A. Dosch | Director | A | — | — |
| 2024-11-19 | MARIAN M DURKIN | Director | A | — | — |
| 2024-11-19 | Douglas W. Jaeger | Director | A | — | — |
| 2024-11-19 | DENNIS W JOHNSON | Director | A | — | — |
| 2024-11-19 | Chenxi Wang | Director | A | — | — |
| 2024-11-01 | MDU RESOURCES GROUP INC | 10%+ Owner | J | — | — |
| 2024-10-31 | DAVID M SPARBY | Director | A | — | — |
| 2024-09-30 | DAVID M SPARBY | Director | A | — | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| — | Director | 1,754,533 | — |
| — | President & CEO | 1,189,406 | — |
| — | Director | 648,898 | — |
| — | President and CEO | 562,987 | — |
| — | President & CEO | 548,492 | — |
| — | President & CEO MDU CSG | 501,491 | — |
| — | CFO | 370,296 | — |
| — | Director | 365,049 | — |
| — | CEO-Knife River | 350,974 | — |
| — | Director | 275,444 | — |
| — | Director | 244,126 | — |
| — | Director | 242,507 | — |
| — | Pres. & CEO-MDU Constr.Serv. | 230,214 | — |
| — | EVP-Business Development | 209,070 | — |
| — | Director | 188,108 | — |
| — | General Counsel and Secretary | 184,860 | — |
| — | EVP, Treas. & CFO | 181,387 | — |
| — | Director | 170,948 | — |
| — | VP and CIO | 170,924 | — |
| — | VP and CFO | 144,624 | — |
| — | ChiefHRSafety&AdminOfficer | 141,215 | — |
| — | President & CEO-WBI Holdings | 136,106 | — |
| — | President & CEO, Mont.-Dakota | 135,261 | — |
| — | VP, Gen Counsel & Secretary | 128,827 | — |
| — | President-WBI | 126,612 | — |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the MDU quote page; the site-wide leaderboard is on the insider transactions hub.