| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
Across the last three months, Dorchester Minerals, L.P.'s insiders have accumulated 5,197 shares worth roughly $147K on balance.
Counted by filing, the last 12 months brought 7 open-market purchases by 4 insiders worth about $607K and no sales. The 12 months before that brought 5 open-market purchases by 3 insiders worth about $1.2M and no sales.
Funds and other entities also made 5 purchases worth about $1.7M in the last 12 months, not counted above.
The largest open-market purchase in the last two years was 14,430 shares by Bradley J Ehrman (Chief Executive Officer) at an average $34.41 on December 3, 2024, about $497K. Twelve months later DMLP was down 36%.
The most recent purchase was by Leslie A Moriyama (Chief Financial Officer) on August 19, 2026.
| Role | Insider | Shares | Value | 30d |
|---|---|---|---|---|
| CEO | 142.7K | $4.03M | - | |
| CFO | 103.4K | $2.92M | - | |
| Other | 70.0K | $1.98M | - | |
| Dir | 20.5K | $579.6K | - | |
| Dir | 9.0K | $253.9K | - |
Buys and sells only
| Date | Insider | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| Aug 19, 2026 | Leslie A Moriyama66 | Chief Financial Officer | Buy | 5,197 | $28.30 | $147,075.10 | +5.3% | - | - | |
| Jun 1, 2026 | Dorchester Minerals Operating LP64 | Entity Under Common Control | Buy10b5-1 | 7,500 | $27.56 | $206,719.88 | +12.0% | +4.5% | - | |
| May 20, 2026 | Dorchester Minerals Operating LP64 | Entity Under Common Control | Buy10b5-1 | 7,500 | $28.30 | $212,280.00 | +13.6% | +2.4% | - | |
| May 12, 2026 | Bradley J Ehrman60 | Chief Executive Officer | Buy | 4,000 | $26.78 | $107,120.00 | +2.9% | -2.3% | - | |
| Feb 13, 2026 | Dorchester Minerals Operating LP64 | Entity Under Common Control | Buy10b5-1 | 20,000 | $25.24 | $504,750.00 | +57.1% | +6.9% | - | |
| Dec 22, 2025 | Dorchester Minerals Operating LP64 | Entity Under Common Control | Buy10b5-1 | 15,000 | $22.27 | $334,124.00 | +74.9% | +23.4% | - | |
| Dec 18, 2025 | Dorchester Minerals Operating LP64 | Entity Under Common Control | Buy10b5-1 | 20,000 | $22.26 | $445,215.66 | +117,647% | +23.3% | - | |
| Dec 3, 2025 | Frank Damon Box | Director | Buy | 5,000 | $21.97 | $109,825.00 | +125.0% | +20.7% | - | |
| Nov 28, 2025 | Robert C Vaughn | Director | Buy | 195 | $21.36 | $4,165.20 | +1.0% | +16.2% | - | |
| Nov 26, 2025 | Bradley J Ehrman60 | Chief Executive Officer | Buy | 3,487 | $21.50 | $74,979.20 | +3.0% | +19.9% | - |