🕵️ MDU Resources Group Inc ($MDU)
SEC insider & ownership activity, last 12 months · CIK 67716 · every row links its SEC filing
Over the last 12 months insiders bought $104K with no open-market selling against it. Charles M. Kelley bought $104K in discretionary trades (Feb). No red-flag 8-Ks in the window.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
1 buyer, $104K (1 lots) · 0 sellers, $0 (0 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Charles M. Kelley | 1 | $104K | 0 | – | Feb 13, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Barrow Hanley Mewhinney & Strauss LLC | 6.3% | 13G | Aug 12, 2026 | filing ↗ | |
| Vanguard Portfolio Management | 6.1% | 13G | Apr 29, 2026 | filing ↗ | |
| Vanguard Capital Management | 5.3% | 13G | Apr 30, 2026 | filing ↗ | |
| Dimensional Fund Advisors LP | 5.0% | 13G | Jul 14, 2026 | filing ↗ |
Planned insider sales (Form 144)
No sale notices filed in the last 12 months.
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Earnings (2.02) | Aug 6, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Aug 6, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 6, 2026 | filing ↗ |
| Officer/director changes (5.02) | May 11, 2026 | filing ↗ |
| Amendments to the Registrant's Code of Ethics (5.05) | May 11, 2026 | filing ↗ |
| Shareholder vote (5.07) | May 11, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 11, 2026 | filing ↗ |
| Earnings (2.02) | May 7, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | May 7, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 7, 2026 | filing ↗ |
| Earnings (2.02) | Feb 5, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Feb 5, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 5, 2026 | filing ↗ |
| Material agreement (1.01) | Jan 15, 2026 | filing ↗ |
| New financial obligation (2.03) | Jan 15, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 15, 2026 | filing ↗ |
| Material agreement (1.01) | Dec 23, 2025 | filing ↗ |
| Other events (8.01) | Dec 23, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Dec 23, 2025 | filing ↗ |
| Material agreement (1.01) | Dec 11, 2025 | filing ↗ |
| Acquisition or disposition (2.01) | Dec 11, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Dec 11, 2025 | filing ↗ |
| Material agreement (1.01) | Dec 3, 2025 | filing ↗ |
| Other events (8.01) | Dec 3, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Dec 3, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Nov 20, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 20, 2025 | filing ↗ |
| Earnings (2.02) | Nov 6, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Nov 6, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 6, 2025 | filing ↗ |