🕵️ Dorchester Minerals, L.P. ($DMLP)
SEC insider & ownership activity, last 12 months · CIK 1172358 · every row links its SEC filing
Over the last 12 months insiders bought $2.3M with no open-market selling against it. Dorchester Minerals Operating LP bought $1.7M through a 10b5-1 trading plan in 12 lots (Dec–Jun). No red-flag 8-Ks in the window.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
5 buyers, $2.3M (21 lots) · 0 sellers, $0 (0 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Dorchester Minerals Operating LP | 12 | $1.7M | 0 | – | Jun 1, 2026 |
| Box Frank Damon | 2 | $212K | 0 | – | Dec 3, 2025 |
| Bradley J. Ehrman | 3 | $182K | 0 | – | May 12, 2026 |
| Robert C. Vaughn | 3 | $103K | 0 | – | Nov 28, 2025 |
| Leslie A. Moriyama | 1 | $65K | 0 | – | Nov 25, 2025 |
5%+ holders
No current 5%+ beneficial-ownership positions on file.
Planned insider sales (Form 144)
No sale notices filed in the last 12 months.
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Earnings (2.02) | Jul 23, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jul 23, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 23, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jul 3, 2026 | filing ↗ |
| Other events (8.01) | Jul 3, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 3, 2026 | filing ↗ |
| Shareholder vote (5.07) | May 13, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | May 12, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 12, 2026 | filing ↗ |
| Earnings (2.02) | May 6, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | May 6, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 6, 2026 | filing ↗ |
| Earnings (2.02) | Apr 23, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Apr 23, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 23, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Mar 12, 2026 | filing ↗ |
| Other events (8.01) | Mar 12, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 12, 2026 | filing ↗ |
| Other events (8.01) | Feb 27, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 27, 2026 | filing ↗ |
| Earnings (2.02) | Feb 24, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Feb 24, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 24, 2026 | filing ↗ |
| Officer/director changes (5.02) | Feb 11, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Feb 11, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 11, 2026 | filing ↗ |
| Earnings (2.02) | Jan 22, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jan 22, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 22, 2026 | filing ↗ |
| Officer/director changes (5.02) | Dec 4, 2025 | filing ↗ |