MDU · Insider Trading
MDU Resources Group, Inc.
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.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-10-01 | Vernon A. Dosch | Director | A | +1,462 | — |
| 2026-10-01 | Marian M Durkin | Director | A | +172 | — |
| 2026-07-01 | Marian M Durkin | Director | A | +152 | — |
| 2026-07-01 | Vernon A. Dosch | Director | A | +1,293 | — |
| 2026-04-01 | Vernon A. Dosch | Director | A | +1,334 | — |
| 2026-04-01 | Marian M Durkin | Director | A | +157 | — |
| 2026-02-19 | Rob L. Johnson | President-WBI | MIXED | −4,800 | −$216.43K |
| 2026-02-19 | Anne M Jones | ChiefHRSafety&AdminOfficer | MIXED | −6,487 | −$244.52K |
| 2026-02-19 | Nicole A Kivisto | President & CEO | MIXED | +9,369 | −$726.20K |
| 2026-02-19 | Garret Senger | Chief Utilities Officer | MIXED | −1,247 | −$166.28K |
| 2026-02-19 | Dyke A. Boese | CIO | A | +3,702 | — |
| 2026-02-19 | Stephanie A Sievert | ChiefAccntg&RegAffairsOfficer | MIXED | −5,894 | −$212.52K |
| 2026-02-19 | Anthony Donald Foti | CLO & Corporate Secretary | A | +8,161 | — |
| 2026-02-19 | Jason L Vollmer | CFO | MIXED | −21,537 | −$748.56K |
| 2026-02-17 | Charles M Kelley | Director | Buy | +5,000 | +$104.22K |
| 2026-01-02 | Vernon A. Dosch | Director | A | +1,394 | — |
| 2026-01-02 | Marian M Durkin | Director | A | +164 | — |
| 2025-11-14 | Vernon A. Dosch | Director | A | +7,274 | — |
| 2025-11-14 | Darrel T Anderson | Director | A | +8,082 | — |
| 2025-11-14 | Douglas W. Jaeger | Director | A | +7,274 | — |
| 2025-11-14 | Marian M Durkin | Director | A | +7,274 | — |
| 2025-11-14 | Dennis W Johnson | Director | A | +7,779 | — |
| 2025-11-14 | Charles M Kelley | Director | A | +3,031 | — |
| 2025-11-14 | Tammy J Miller | Director | A | +3,031 | — |
| 2025-11-14 | Priti Rashmikant Patel | Director | A | +4,849 | — |
| 2025-10-01 | Vernon A. Dosch | Director | A | +1,541 | — |
| 2025-10-01 | Marian M Durkin | Director | A | +182 | — |
| 2025-09-09 | Jason L Vollmer | CFO | Buy | +5,000 | +$80.38K |
| 2025-08-19 | Jason L Vollmer | CFO | Buy | +5,000 | +$81.38K |
| 2025-07-16 | Dyke A. Boese | CIO | I | +7,748 | +$131.65K |
| 2025-07-01 | Marian M Durkin | Director | A | +175 | — |
| 2025-07-01 | Vernon A. Dosch | Director | A | +1,658 | — |
| 2025-04-01 | Vernon A. Dosch | Director | A | +1,650 | — |
| 2025-04-01 | Marian M Durkin | Director | A | +165 | — |
| 2025-02-14 | Dyke A. Boese | CIO | A | +3,382 | — |
| 2025-02-14 | Anthony Donald Foti | CLO & Corporate Secretary | A | +8,473 | — |
| 2025-02-14 | Rob L. Johnson | President-WBI | MIXED | −993 | −$114.07K |
| 2025-02-14 | Anne M Jones | ChiefHRAdmin&SafetyOfficer | MIXED | −4,752 | −$181.39K |
| 2025-02-14 | Nicole A Kivisto | President & CEO | MIXED | +15,653 | −$510.22K |
| 2025-02-14 | Garret Senger | Chief Utilities Officer | MIXED | +44 | −$125.72K |
| 2025-02-14 | Stephanie A Sievert | ChiefAccntg&RegAffairsOfficer | MIXED | −4,532 | −$159.99K |
| 2025-02-14 | Jason L Vollmer | CFO | MIXED | −13,729 | −$512.12K |
| 2025-02-10 | Dennis W Johnson | Director | Buy | +30,000 | +$499.20K |
| 2024-11-19 | Darrel T Anderson | Director | A | +8,178 | — |
| 2024-11-19 | Vernon A. Dosch | Director | A | +1,363 | — |
| 2024-11-19 | Marian M Durkin | Director | A | +3,407 | — |
| 2024-11-19 | Douglas W. Jaeger | Director | A | +5,452 | — |
| 2024-11-19 | Dennis W Johnson | Director | A | +9,541 | — |
| 2024-11-19 | Chenxi Wang | Director | A | +8,178 | — |
| 2024-11-01 | MDU RESOURCES GROUP INC | 10%+ Owner | J | −50,972,059 | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| Nicole A Kivisto | President & CEO | 548,492 | $10.49M |
| Jason L Vollmer | CFO | 370,296 | $7.08M |
| Dennis W Johnson | Director | 188,108 | $3.60M |
| Anne M Jones | ChiefHRSafety&AdminOfficer | 141,215 | $2.70M |
| Rob L. Johnson | President-WBI | 126,612 | $2.42M |
| Garret Senger | Chief Utilities Officer | 125,187 | $2.39M |
| Stephanie A Sievert | ChiefAccntg&RegAffairsOfficer | 90,530 | $1.73M |
| David M Sparby | Director | 78,451 | $1.50M |
| Chenxi Wang | Director | 33,691 | $644.17K |
| Vernon A. Dosch | Director | 20,377 | $389.61K |
| Darrel T Anderson | Director | 17,594 | $336.40K |
| Anthony Donald Foti | CLO & Corporate Secretary | 16,634 | $318.04K |
| Douglas W. Jaeger | Director | 12,726 | $243.32K |
| Marian M Durkin | Director | 11,848 | $226.53K |
| Charles M Kelley | Director | 8,031 | $153.55K |
| Dyke A. Boese | CIO | 7,154 | $136.78K |
| Tammy J Miller | Director | 6,031 | $115.31K |
| Priti Rashmikant Patel | Director | 4,849 | $92.71K |
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.
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.