What changed 10-Q

Item 5. Other Information

2026-08-06 compared with 2026-05-06 · 3 added, 1 removed, 49 unchanged (8% of the section changed)

1 unchanged sentence

Rule 10b5 - 1 Trading Plans

During the three months ended March 31, 2026 , none of our executive officers or directors adopted or terminated any contract, instruction or written plan for the purchase or sale of our securities that was intended to satisfy the affirmative defense conditions of Rule 10b5 - 1 (c) under the Exchange Act (a “Rule 10b5 - 1 trading arrangement”) or any “Non-Rule 10b5 - 1 trading arrangement” (as defined in Item 408 (c) of Regulation S-K).

During the second quarter and six months ended June 30, 2026, none of our executive officers or directors adopted or terminated any contract, instruction or written plan for the purchase or sale of our securities that was intended to satisfy the affirmative defense conditions of Rule 10b5 - 1 (c) under the Exchange Act (a “Rule 10b5 - 1 trading arrangement”) or any “Non-Rule 10b5 - 1 trading arrangement” (as defined in Item 408 (c) of Regulation S-K).

Certificate of Limited Partnership of Dorchester Minerals, L.P.

41 unchanged sentences

Bradley Ehrman

August 6, 2026

Chief Executive Officer

1 unchanged sentence

Leslie Moriyama

August 6, 2026

Chief Financial Officer

Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.