As of June 02, 2026, Mdu Resources's top three insider holders are David L Goodin (President Ceo, 595.56K shares), Nicole A Kivisto (President Ceo, 547.96K shares), Jason L Vollmer (Cfo, 324.98K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Thomas S Everist | - | 110,626 | 0 | 22 Nov, 2022 |
| Patricia L Moss | - | 92,212 | 0 | 22 Nov, 2022 |
| Dennis W Johnson | - | 187,945 | 0 | 14 Nov, 2025 |
| Darrel T Anderson | - | 17,594 | 0 | 14 Nov, 2025 |
| Marian M Durkin | - | 11,524 | 0 | 01 Apr, 2026 |
| Karen B Fagg | - | 92,828 | 0 | 22 Nov, 2022 |
| Nicole A Kivisto | President Ceo | 547,962 | 0 | 19 Feb, 2026 |
| Edward A Ryan | - | 44,727 | 0 | 17 Nov, 2023 |
| David L Goodin | President Ceo | 595,558 | 0 | 16 Feb, 2024 |
| David C Barney | Ceo Knife River | 132,769 | 0 | 21 Feb, 2023 |
| Jeffrey S Thiede | President Ceo Mdu Csg | 269,169 | 0 | 16 Feb, 2024 |
| Dale Rosenthal | - | 16,499 | 0 | 13 Mar, 2024 |
| Jason L Vollmer | Cfo | 324,976 | 0 | 19 Feb, 2026 |
| Anne M Jones | Chiefhrsafetyadminofficer | 118,017 | 0 | 19 Feb, 2026 |
| Margaret A Link | Vp And Cio | 74,387 | 0 | 16 Feb, 2024 |
| Stephanie A Barth | Vp, Cao Controller | 40,508 | 0 | 01 Jun, 2023 |
| Trevor J Hastings | President Ceo Wbi Holdings | 76,360 | 0 | 01 Jun, 2023 |
| Charles M Kelley | - | 8,031 | 0 | 17 Feb, 2026 |
| Anthony Donald Foti | Clo Corporate Secretary | 16,634 | 0 | 19 Feb, 2026 |
| Chenxi Wang | - | 33,691 | 0 | 19 Nov, 2024 |
| Karl A Liepitz | Vp, Gen Counsel Secretary | 64,283 | 0 | 01 Jun, 2023 |
| German Carmona-Alvarez | - | 816 | 0 | 22 Nov, 2022 |
| James H. Gemmel | - | 8,008 | 0 | 17 Nov, 2023 |
| Paul R. Sanderson | Vp, Clo Secretary | 38,066 | 0 | 16 Feb, 2024 |
| Rob L. Johnson | President Wbi | 82,665 | 0 | 19 Feb, 2026 |
| Garret Senger | Chief Utilities Officer | 100,048 | 0 | 19 Feb, 2026 |
| Douglas W. Jaeger | - | 12,726 | 0 | 14 Nov, 2025 |
| Vernon A. Dosch | - | 17,464 | 0 | 01 Apr, 2026 |
| Dyke A. Boese | Cio | 0 | 17,274 | 16 Jul, 2025 |
| Priti Rashmikant Patel | - | 4,849 | 0 | 14 Nov, 2025 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 31 Mar, 2026 | Marian M Durkin | Common Stock | A | 157 | $0.00 | 11,524 | D | A |
| 31 Mar, 2026 | Vernon A. Dosch | Common Stock | A | 1,334 | $0.00 | 17,464 | D | A |
| 17 Feb, 2026 | Anthony Donald Foti | Common Stock | A | 8,161 | $0.00 | 16,634 | D | A |
| 17 Feb, 2026 | Garret Senger | Common Stock | A | 6,920 | $0.00 | 108,215 | D | A |
| 17 Feb, 2026 | Dyke A. Boese | Common Stock | A | 3,702 | $0.00 | 7,084 | D | A |
| 17 Feb, 2026 | Rob L. Johnson | Common Stock | A | 5,830 | $0.00 | 93,295 | D | A |
| 17 Feb, 2026 | Anne M Jones | Common Stock | A | 5,523 | $0.00 | 130,027 | D | A |
| 17 Feb, 2026 | Garret Senger | Common Stock | A | 6,920 | $0.00 | 108,215 | D | A |
| 17 Feb, 2026 | Jason L Vollmer | Common Stock | A | 15,229 | $0.00 | 361,742 | D | A |
| 17 Feb, 2026 | Nicole A Kivisto | Common Stock | A | 45,037 | $0.00 | 583,630 | D | A |
| 17 Feb, 2026 | Jason L Vollmer | Common Stock | A | 15,229 | $0.00 | 361,742 | D | A |
| 18 Feb, 2026 | Anne M Jones | Common Stock | D | 12,010 | $20.36 | 118,017 | D | F |
| 18 Feb, 2026 | Jason L Vollmer | Common Stock | D | 36,766 | $20.36 | 324,976 | D | F |
| 18 Feb, 2026 | Garret Senger | Common Stock | D | 8,167 | $20.36 | 100,048 | D | F |
| 18 Feb, 2026 | Nicole A Kivisto | Common Stock | D | 35,668 | $20.36 | 547,962 | D | F |
| 18 Feb, 2026 | Garret Senger | Common Stock | D | 8,167 | $20.36 | 100,048 | D | F |
| 18 Feb, 2026 | Jason L Vollmer | Common Stock | D | 36,766 | $20.36 | 324,976 | D | F |
| 18 Feb, 2026 | Rob L. Johnson | Common Stock | D | 10,630 | $20.36 | 82,665 | D | F |
| 13 Feb, 2026 | Charles M Kelley | Common Stock | A | 5,000 | $20.85 | 8,031 | D | P |
| 31 Dec, 2025 | Marian M Durkin | Common Stock | A | 164 | $0.00 | 11,367 | D | A |