16 insiders reported 51 Form 4 transactions for MDU RESOURCES GROUP INC (MDU) over the past 18 months (most recent 2026-07-01). Recent activity: DURKIN MARIAN M (Director) Buy 152 shares, Dosch Vernon A. (Director) Buy 1,293 shares, Vollmer Jason L (CFO) Buy 15,229 shares, Kivisto Nicole A (President & CEO) Sell 35,668 shares, Jones Anne M (ChiefHRSafety&AdminOfficer) Buy 5,523 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-01 | DURKIN MARIAN M | Director | Buy | 152 | $0 |
| 2026-07-01 | Dosch Vernon A. | Director | Buy | 1,293 | $0 |
| 2026-02-19 | Vollmer Jason L | CFO | Buy | 15,229 | $0 |
| 2026-02-19 | Kivisto Nicole A | President & CEO | Sell | 35,668 | $726,200 |
| 2026-02-19 | Jones Anne M | ChiefHRSafety&AdminOfficer | Buy | 5,523 | $0 |
| 2026-02-19 | Jones Anne M | ChiefHRSafety&AdminOfficer | Sell | 12,010 | $244,524 |
| 2026-02-19 | Boese Dyke A. | CIO | Buy | 3,702 | $0 |
| 2026-02-19 | Johnson Rob L. | President-WBI | Buy | 5,830 | $0 |
| 2026-02-19 | Johnson Rob L. | President-WBI | Sell | 10,630 | $216,427 |
| 2026-02-19 | Foti Anthony Donald | CLO & Corporate Secretary | Buy | 8,161 | $0 |
| 2026-02-19 | Sievert Stephanie A | ChiefAccntg&RegAffairsOfficer | Buy | 4,544 | $0 |
| 2026-02-19 | Sievert Stephanie A | ChiefAccntg&RegAffairsOfficer | Sell | 10,438 | $212,518 |
| 2026-02-19 | Kivisto Nicole A | President & CEO | Buy | 45,037 | $0 |
| 2026-02-19 | Vollmer Jason L | CFO | Sell | 36,766 | $748,556 |
| 2026-02-19 | Senger Garret | Chief Utilities Officer | Buy | 6,920 | $0 |
| 2026-02-19 | Senger Garret | Chief Utilities Officer | Sell | 8,167 | $166,280 |
| 2026-02-17 | KELLEY CHARLES M | Director | Buy | 5,000 | $104,250 |
| 2026-01-02 | Dosch Vernon A. | Director | Buy | 1,394 | $0 |
| 2026-01-02 | DURKIN MARIAN M | Director | Buy | 164 | $0 |
| 2025-11-14 | ANDERSON DARREL T | Director | Buy | 8,082 | $0 |
| 2025-11-14 | Dosch Vernon A. | Director | Buy | 7,274 | $0 |
| 2025-11-14 | JOHNSON DENNIS W | Director | Buy | 7,779 | $0 |
| 2025-11-14 | Miller Tammy J | Director | Buy | 3,031 | $0 |
| 2025-11-14 | DURKIN MARIAN M | Director | Buy | 7,274 | $0 |
| 2025-11-14 | Patel Priti Rashmikant | Director | Buy | 4,849 | $0 |
Source: SEC Form 4 filings · as of 2026-07-01