Mdu Resources Group Inc
MDU- Exchange
- NYSE
- Industry
- Mining & Quarrying of Nonmetallic Minerals (No Fuels)
- SEC CIK
- 0000067716
No open-market purchases or sales by Mdu Resources Group Inc insiders were filed in the last 90 days; 438 institutions reported holding it in 13F filings for Q2 2026, worth $4.12B in total; no superinvestor holds it.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by Mdu Resources Group Inc insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 0 filings
- Open-market sells
- 0 filings
- Insiders trading
- 0
- Net value
- $0
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for Mdu Resources Group Inc, current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| Durkin Marian M | Director | 11,676 | Jul 1, 2026 | 5 |
| Dosch Vernon A. | Director | 18,834 | Jul 1, 2026 | 5 |
| Kivisto Nicole A | President & CEO | 547,962 | Feb 19, 2026 | 1 |
| Vollmer Jason L | CFO | 324,976 | Feb 19, 2026 | 1 |
| Jones Anne M | ChiefHRSafety&AdminOfficer | 118,017 | Feb 19, 2026 | 1 |
| Barth Stephanie A | ChiefAccntg&RegAffairsOfficer | 90,503 | Feb 19, 2026 | 1 |
| Foti Anthony Donald | CLO & Corporate Secretary | 16,634 | Feb 19, 2026 | 1 |
| Johnson Rob L. | President-WBI | 82,665 | Feb 19, 2026 | 1 |
| Senger Garret | Chief Utilities Officer | 100,048 | Feb 19, 2026 | 1 |
| Boese Dyke A. | CIO | 7,084 | Feb 19, 2026 | 1 |
| Kelley Charles M | Director | 8,031 | Feb 17, 2026 | 2 |
| Johnson Dennis W | Director | 187,945 | Nov 14, 2025 | 1 |
| Anderson Darrel T | Director | 17,594 | Nov 14, 2025 | 1 |
| Jaeger Douglas W. | Director | 12,726 | Nov 14, 2025 | 1 |
| Miller Tammy J | Director | 6,031 | Nov 14, 2025 | 1 |
| Patel Priti Rashmikant | Director | 4,849 | Nov 14, 2025 | 1 |
| Wang Chenxi | Director | 33,691 | Nov 19, 2024 | 0 |
| Sparby David M | Director | 43,463 | Oct 31, 2024 | 0 |
| Rosenthal Dale | Director | 16,499 | Mar 13, 2024 | 0 |
| Goodin David L | Director | 595,558 | Feb 16, 2024 | 0 |
| Thiede Jeffrey S | President & CEO MDU CSG | 269,169 | Feb 16, 2024 | 0 |
| Link Margaret A | VP and CIO | 74,387 | Feb 16, 2024 | 0 |
| Sanderson Paul R. | VP, CLO & Secretary | 38,066 | Feb 16, 2024 | 0 |
| Ryan Edward A | Director | 44,727 | Nov 17, 2023 | 0 |
| Gemmel James H. | Director | 8,008 | Nov 17, 2023 | 0 |
| Hastings Trevor J | President & CEO-WBI Holdings | 76,360 | Jun 1, 2023 | 0 |
| Liepitz Karl A | VP, Gen Counsel & Secretary | 64,283 | Jun 1, 2023 | 0 |
| Barney David C | CEO-Knife River | 132,769 | Feb 21, 2023 | 0 |
| Everist Thomas S | Director | 110,626 | Nov 22, 2022 | 0 |
| Moss Patricia L | Director | 92,212 | Nov 22, 2022 | 0 |
| Fagg Karen B | Director | 92,828 | Nov 22, 2022 | 0 |
| Carmona-Alvarez German | Director | 816 | Nov 22, 2022 | 0 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Feb 17, 2026 (view filing) | Feb 13 | 4 days | Kelley Charles MDirector | PPurchase | +5.00K | $20.85 | +$104.3K | +165.0%8.03K after | |
| Sep 9, 2025 (view filing) | Sep 8 | 1 day | Vollmer Jason LCFO | PPurchase | +5.00K | $16.08 | +$80.4K | +1.5%344.5K after | |
| Aug 19, 2025 (view filing) | Aug 19 | Same day | Vollmer Jason LCFO | PPurchase | +5.00K | $16.28 | +$81.4K | +1.5%339.5K after | |
| Feb 10, 2025 (view filing) | Feb 10 | Same day | Johnson Dennis WDirector | PPurchase | +30.0K | $16.64 | +$499.2K | +20.0%180.2K after | |
| May 8, 2024 (view filing) | May 7 | 1 day | Johnson Rob L.President-WBI Holdings | PPurchaseCommon Stock - 401(k) | +36.3K | $25.46 | +$924.0K | +643.2%41.9K after | |
| Mar 13, 2024 (view filing) | Mar 12 | 1 day | Rosenthal DaleDirector | PPurchase | +375 | $22.55 | +$8.46K | +2.3%16.5K after |