Every Form 4 that Dorchester Minerals Lp (DMLP) has filed with the SEC in the last 12 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A Form 4 covers the transactions officers, directors and large holders report, so if you follow DMLP and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full DMLP filings page.
DORCHESTER MINERALS, L.P. (DMLP) reported that its Chief Financial Officer, Leslie A. Moriyama, purchased 5,197 Common Units on 2026-08-19 at a price of $28.30 per unit in an open-market or private transaction. Following this purchase, Moriyama beneficially owns 103,405 Common Units, held in her individual name, jointly with her spouse, or in her Individual Retirement Account.
DORCHESTER MINERALS OPERATING LP, an entity under common control with DORCHESTER MINERALS, L.P., reported open-market purchases of a total of 7,500 Common Units of Dorchester Minerals, L.P. on June 1, 2026.
The units were bought in three transactions of 4,001, 999, and 2,500 Common Units at prices of $27.50, $27.62, and $27.64 per unit, respectively. The transactions were executed pursuant to a Rule 10b5-1 trading plan adopted on November 12, 2025.
Dorchester Minerals Operating LP, an entity under common control with Dorchester Minerals, L.P., reported open-market purchases of Common Units. On May 20, 2026, it bought 6,000 units at $28.32 and 1,500 units at $28.24, totaling 7,500 units. After these trades, its direct holdings were reported at 62,517 Common Units. The transactions were executed under a pre-arranged Rule 10b5-1 trading plan adopted on November 12, 2025, indicating they were scheduled in advance rather than discretionary market-timed buys.
DORCHESTER MINERALS, L.P. Chief Executive Officer Bradley J. Ehrman indirectly bought 4,000 Common Units at $26.78 per unit through Quiscalus Ventures, LLC, where he is the sole member. After this open-market purchase, he holds 142,723 Common Units indirectly and 15,192 Common Units directly, including units in his individual name, IRA or Keogh Plan.
Dorchester Minerals Operating LP, described as an entity under common control with Dorchester Minerals, L.P., reported a series of open-market purchases of Common Units. On February 11, 2026, it bought 10,000 Common Units at $25.29 each, bringing its direct holdings to 45,017 units.
It then purchased 5,000 Common Units on February 12, 2026 at $25.08, increasing its position to 50,017 units. A further 5,000-unit purchase on February 13, 2026 at $25.29 raised its directly held stake to 55,017 Common Units. The filing notes these trades were made under a referenced Rule 10b5-1 trading plan adopted on November 12, 2025.
Dorchester Minerals, L.P. Chief Financial Officer Leslie A. Moriyama reported equity transactions involving the partnership’s common units. On December 15, 2025, she acquired 4,351 common units at an exercise price of $0 through the vesting and settlement of previously granted notional units under an equity incentive plan. On the same date, 1,756 common units were withheld at $0 to cover tax liabilities associated with this equity award. Following these transactions, she directly beneficially owns 98,208 common units of Dorchester Minerals, L.P., held in her name, jointly with her spouse, or in her Individual Retirement Account.
Dorchester Minerals, L.P. reported an insider equity transaction by its Chief Executive Officer, who filed as a single reporting person. On December 15, 2025, the CEO exercised 4,727 notional units into common units at a stated price of $0, coded as an M transaction, increasing his directly held common units before tax withholding.
On the same date, 1,719 common units were disposed of at $0 in an F-coded transaction to cover tax liabilities related to a common unit grant made on December 15, 2025 under an equity incentive plan. After these transactions, the CEO directly owned 32,718 common units, with an additional 121,197 common units held indirectly through Quiscalus Ventures, LLC, and 4,726 notional units remaining under an equity incentive program that vests in thirds annually starting December 15, 2024.
Dorchester Minerals, L.P. reported an insider equity transaction by Chief Executive Officer Bradley J. Ehrman on 12/03/2025. He acquired 4,810 common units at an exercise price of $0 through the vesting and settlement of previously granted notional units.
On the same date, 1,749 common units were disposed of at $0 to satisfy tax liabilities by withholding units from an equity award. After these transactions, he holds 29,710 common units directly and 121,197 common units indirectly through Quiscalus Ventures, LLC, and continues to hold 9,620 notional units under the equity incentive program, which vest in equal thirds annually over three years beginning 12/03/2025.
Dorchester Minerals, L.P. (DMLP) Chief Executive Officer Bradley J. Ehrman reported recent purchases of the partnership’s common units. On 11/25/2025, he acquired 1,000 common units at a price of $21.26 per unit through an indirect holding. On 11/26/2025, he acquired an additional 2,487 common units at $21.6 per unit, also reported as an indirect holding. Following these transactions, 121,197 common units are reported as indirectly owned and 15,192 common units are reported as directly owned.