| DORCHESTER MINERALS OPERATING LP | other: Entity Under Common Control | Jun 01 '26 | Buy | 27.56 | 7,500 | 206,720 | 70,017 | Jun 02 12:00 AM |
| DORCHESTER MINERALS OPERATING LP | other: Entity Under Common Control | May 20 '26 | Buy | 28.30 | 7,500 | 212,280 | 62,517 | May 22 12:00 AM |
| EHRMAN BRADLEY J | Chief Executive Officer | May 12 '26 | Buy | 26.78 | 4,000 | 107,120 | 142,723 | May 12 12:00 AM |
| DORCHESTER MINERALS OPERATING LP | other: Entity Under Common Control | Feb 13 '26 | Buy | 25.29 | 5,000 | 126,450 | 55,017 | Feb 13 12:00 AM |
| DORCHESTER MINERALS OPERATING LP | other: Entity Under Common Control | Feb 12 '26 | Buy | 25.08 | 5,000 | 125,400 | 50,017 | Feb 13 12:00 AM |
| DORCHESTER MINERALS OPERATING LP | other: Entity Under Common Control | Feb 11 '26 | Buy | 25.29 | 10,000 | 252,900 | 45,017 | Feb 13 12:00 AM |
| DORCHESTER MINERALS OPERATING LP | other: Entity Under Common Control | Dec 22 '25 | Buy | 22.30 | 10,000 | 222,994 | 35,017 | Dec 23 12:00 AM |
| DORCHESTER MINERALS OPERATING LP | other: Entity Under Common Control | Dec 19 '25 | Buy | 22.23 | 5,000 | 111,130 | 25,017 | Dec 23 12:00 AM |
| DORCHESTER MINERALS OPERATING LP | other: Entity Under Common Control | Dec 18 '25 | Buy | 22.28 | 15,729 | 350,422 | 20,017 | Dec 19 12:00 AM |
| DORCHESTER MINERALS OPERATING LP | other: Entity Under Common Control | Dec 17 '25 | Buy | 22.19 | 4,271 | 94,794 | 4,288 | Dec 19 12:00 AM |
| MORIYAMA LESLIE A | Chief Financial Officer | Dec 15 '25 | Option Exercise | 0.00 | 8,702 | 0 | 99,964 | Dec 17 12:00 AM |
| EHRMAN BRADLEY J | Chief Executive Officer | Dec 15 '25 | Option Exercise | 0.00 | 9,454 | 0 | 34,437 | Dec 17 12:00 AM |
| MORIYAMA LESLIE A | Chief Financial Officer | Dec 03 '25 | Option Exercise | 0.00 | 8,034 | 0 | 97,234 | Dec 05 12:00 AM |
| EHRMAN BRADLEY J | Chief Executive Officer | Dec 03 '25 | Option Exercise | 0.00 | 9,620 | 0 | 31,459 | Dec 05 12:00 AM |
| Box Frank Damon | Director | Dec 03 '25 | Buy | 21.96 | 5,000 | 109,825 | 9,000 | Dec 03 12:00 AM |