DMLP Dorchester Minerals L.P. Commo
Dorchester Minerals L.P. Commo (DMLP) Insider Activity
What the officers, directors and large holders did with their own shares. Only open-market purchases and sales count toward the totals — grants, option exercises and shares withheld for tax are compensation mechanics, not decisions, and they're listed separately below.
Where they traded
Last open-market purchase: August 19, 2026 , by MORIYAMA LESLIE A .
Recent open-market activity
| Date | Insider | Role | Action | Shares | Price | Value | Held after |
|---|---|---|---|---|---|---|---|
| MORIYAMA LESLIE A | Chief Financial Officer | Buy | 5,197 | $28.30 | $147.1K | 103,405 | |
| DORCHESTER MINERALS OPERATING LP 3 fills | Other | Buy 10b5-1 | 7,500 | $27.56 | $206.7K | 70,017 | |
| DORCHESTER MINERALS OPERATING LP 2 fills | Other | Buy 10b5-1 | 7,500 | $28.30 | $212.3K | 62,517 | |
| EHRMAN BRADLEY J | Chief Executive Officer | Buy | 4,000 | $26.78 | $107.1K | 142,723 | |
| DORCHESTER MINERALS OPERATING LP | Other | Buy 10b5-1 | 5,000 | $25.29 | $126.5K | 55,017 | |
| DORCHESTER MINERALS OPERATING LP | Other | Buy 10b5-1 | 5,000 | $25.08 | $125.4K | 50,017 | |
| DORCHESTER MINERALS OPERATING LP | Other | Buy 10b5-1 | 10,000 | $25.29 | $252.9K | 45,017 | |
| DORCHESTER MINERALS OPERATING LP | Other | Buy 10b5-1 | 10,000 | $22.30 | $223.0K | 35,017 | |
| DORCHESTER MINERALS OPERATING LP | Other | Buy 10b5-1 | 5,000 | $22.23 | $111.1K | 25,017 | |
| DORCHESTER MINERALS OPERATING LP | Other | Buy 10b5-1 | 15,729 | $22.28 | $350.4K | 20,017 | |
| DORCHESTER MINERALS OPERATING LP | Other | Buy 10b5-1 | 4,271 | $22.19 | $94.8K | 4,288 | |
| Box Frank Damon | Director | Buy | 5,000 | $21.96 | $109.8K | 9,000 | |
| VAUGHN ROBERT C | Director | Buy | 195 | $21.36 | $4.2K | 20,547 | |
| EHRMAN BRADLEY J | Chief Executive Officer | Buy | 2,487 | $21.60 | $53.7K | 121,197 | |
| VAUGHN ROBERT C 2 fills | Director | Buy | 4,615 | $21.41 | $98.8K | 20,352 | |
| MORIYAMA LESLIE A | Chief Financial Officer | Buy | 3,041 | $21.50 | $65.4K | 83,673 | |
| EHRMAN BRADLEY J | Chief Executive Officer | Buy | 1,000 | $21.26 | $21.3K | 118,710 |
Form 4s are due within two business days of a transaction, so this is close to real time — unlike the quarterly 13F data on the Institutional tab. A single large sale often reflects a prearranged 10b5-1 plan rather than a fresh view, so read a pattern of sales rather than any one of them.