The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
| Date | Insider | Role | Action | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jun 1, 2026 | Dorchester Minerals Operating LP | Insider | Buy(P) | 3K | $27.64 | $69K |
| Jun 1, 2026 | Dorchester Minerals Operating LP | Insider | Buy(P) | 999 | $27.62 | $28K |
| Jun 1, 2026 | Dorchester Minerals Operating LP | Insider | Buy(P) | 4K | $27.50 | $110K |
| May 20, 2026 | Dorchester Minerals Operating LP | Insider | Buy(P) | 2K | $28.24 | $42K |
| May 20, 2026 | Dorchester Minerals Operating LP | Insider | Buy(P) | 6K | $28.32 | $170K |
| May 12, 2026 | Ehrman Bradley J | Chief Executive Officer | Buy(P) | 4K | $26.78 | $107K |
| Feb 13, 2026 | Dorchester Minerals Operating LP | Insider | Buy(P) | 5K | $25.29 | $126K |
| Feb 12, 2026 | Dorchester Minerals Operating LP | Insider | Buy(P) | 5K | $25.08 | $125K |
| Feb 11, 2026 | Dorchester Minerals Operating LP | Insider | Buy(P) | 10K | $25.29 | $253K |
| Dec 22, 2025 | Dorchester Minerals Operating LP | Insider | Buy(P) | 10K | $22.30 | $223K |
| Dec 19, 2025 | Dorchester Minerals Operating LP | Insider | Buy(P) | 5K | $22.23 | $111K |
| Dec 18, 2025 | Dorchester Minerals Operating LP | Insider | Buy(P) | 16K | $22.28 | $350K |
| Dec 17, 2025 | Dorchester Minerals Operating LP | Insider | Buy(P) | 4K | $22.19 | $95K |
| Dec 15, 2025 | Ehrman Bradley J | Chief Executive Officer | Tax withholding(F) | 2K | — | $0 |
| Dec 15, 2025 | Ehrman Bradley J | Chief Executive Officer | Option exercise(M) | 5K | — | $0 |
| Dec 15, 2025 | Ehrman Bradley J | Chief Executive Officer | Option exercise(M) | 5K | — | $0 |
| Dec 15, 2025 | Moriyama Leslie A | Chief Financial Officer | Option exercise(M) | 4K | — | $0 |
| Dec 15, 2025 | Moriyama Leslie A | Chief Financial Officer | Tax withholding(F) | 2K | — | $0 |
| Dec 15, 2025 | Moriyama Leslie A | Chief Financial Officer | Option exercise(M) | 4K | — | $0 |
| Dec 3, 2025 | Box Frank Damon | Director | Buy(P) | 5K | $21.97 | $110K |
| Dec 3, 2025 | Ehrman Bradley J | Chief Executive Officer | Option exercise(M) | 5K | — | $0 |
| Dec 3, 2025 | Ehrman Bradley J | Chief Executive Officer | Tax withholding(F) | 2K | — | $0 |
| Dec 3, 2025 | Ehrman Bradley J | Chief Executive Officer | Option exercise(M) | 5K | — | $0 |
| Dec 3, 2025 | Moriyama Leslie A | Chief Financial Officer | Tax withholding(F) | 2K | — | $0 |
| Dec 3, 2025 | Moriyama Leslie A | Chief Financial Officer | Option exercise(M) | 4K | — | $0 |
| Dec 3, 2025 | Moriyama Leslie A | Chief Financial Officer | Option exercise(M) | 4K | — | $0 |
| Dec 1, 2025 | Ehrman Bradley J | Chief Executive Officer | Grant(A) | 18K | $21.63 | $389K |
| Dec 1, 2025 | Ehrman Bradley J | Chief Executive Officer | Tax withholding(F) | 7K | $21.63 | $142K |
| Dec 1, 2025 | Ehrman Bradley J | Chief Executive Officer | Grant(A) | 18K | — | $0 |
| Dec 1, 2025 | Moriyama Leslie A | Chief Financial Officer | Grant(A) | 16K | $21.63 | $346K |
| Dec 1, 2025 | Moriyama Leslie A | Chief Financial Officer | Tax withholding(F) | 6K | $21.63 | $140K |
| Dec 1, 2025 | Moriyama Leslie A | Chief Financial Officer | Grant(A) | 16K | — | $0 |
| Nov 28, 2025 | Dorchester Minerals Operating LP | Insider | Other(J) | 58K | $21.95 | $1.3M |
| Nov 28, 2025 | Vaughn Robert C | Director | Buy(P) | 195 | $21.36 | $4K |
| Nov 26, 2025 | Ehrman Bradley J | Chief Executive Officer | Buy(P) | 2K | $21.60 | $54K |
| Nov 25, 2025 | Ehrman Bradley J | Chief Executive Officer | Buy(P) | 1K | $21.26 | $21K |
| Nov 25, 2025 | Moriyama Leslie A | Chief Financial Officer | Buy(P) | 3K | $21.50 | $65K |
| Nov 25, 2025 | Vaughn Robert C | Director | Buy(P) | 4K | $21.41 | $91K |
| Nov 25, 2025 | Vaughn Robert C | Director | Buy(P) | 352 | $21.39 | $8K |
| Sep 5, 2025 | Box Frank Damon | Director | Buy(P) | 4K | $25.57 | $102K |
| Apr 30, 2025 | Dorchester Minerals Operating LP | Insider | Buy(P) | 10K | $28.76 | $288K |
| Mar 3, 2025 | Ehrman Bradley J | Chief Executive Officer | Buy(P) | 3K | $29.80 | $100K |
| Feb 6, 2025 | Dorchester Minerals Operating LP | Insider | Buy(P) | 335 | $31.06 | $10K |
| Feb 4, 2025 | Dorchester Minerals Operating LP | Insider | Buy(P) | 7K | $30.90 | $201K |
| Jan 31, 2025 | Dorchester Minerals Operating LP | Insider | Buy(P) | 8K | $31.69 | $238K |
| Dec 30, 2024 | Dorchester Minerals Operating LP | Insider | Buy(P) | 4 | $33.06 | $132 |
| Dec 30, 2024 | Dorchester Minerals Operating LP | Insider | Buy(P) | 10 | $33.15 | $332 |
| Dec 30, 2024 | Dorchester Minerals Operating LP | Insider | Buy(P) | 940 | $33.19 | $31K |
| Dec 26, 2024 | Dorchester Minerals Operating LP | Insider | Buy(P) | 4K | $32.86 | $131K |
| Dec 23, 2024 | Dorchester Minerals Operating LP | Insider | Buy(P) | 3K | $32.21 | $81K |
| Dec 23, 2024 | Dorchester Minerals Operating LP | Insider | Buy(P) | 3K | $32.20 | $97K |
| Dec 23, 2024 | Dorchester Minerals Operating LP | Insider | Buy(P) | 1K | $32.27 | $32K |
| Dec 13, 2024 | Ehrman Bradley J | Chief Executive Officer | Tax withholding(F) | 2K | — | $0 |
| Dec 13, 2024 | Ehrman Bradley J | Chief Executive Officer | Option exercise(M) | 5K | — | $0 |
| Dec 13, 2024 | Moriyama Leslie A | Chief Financial Officer | Option exercise(M) | 4K | — | $0 |
| Dec 13, 2024 | Moriyama Leslie A | Chief Financial Officer | Tax withholding(F) | 2K | — | $0 |
| Dec 13, 2024 | Moriyama Leslie A | Chief Financial Officer | Option exercise(M) | 4K | — | $0 |
| Dec 12, 2024 | Dorchester Minerals Operating LP | Insider | Buy(P) | 3K | $32.85 | $99K |
| Dec 12, 2024 | Dorchester Minerals Operating LP | Insider | Buy(P) | 1K | $32.84 | $33K |
| Dec 12, 2024 | Dorchester Minerals Operating LP | Insider | Buy(P) | 1K | $32.84 | $33K |
| Dec 11, 2024 | Dorchester Minerals Operating LP | Insider | Buy(P) | 3K | $33.00 | $99K |
| Dec 11, 2024 | Dorchester Minerals Operating LP | Insider | Buy(P) | 4K | $32.97 | $132K |
| Dec 11, 2024 | Dorchester Minerals Operating LP | Insider | Buy(P) | 4K | $33.03 | $132K |
| Dec 11, 2024 | Dorchester Minerals Operating LP | Insider | Buy(P) | 2K | $33.05 | $66K |
| Dec 11, 2024 | Dorchester Minerals Operating LP | Insider | Buy(P) | 1K | $33.02 | $33K |
| Dec 11, 2024 | Dorchester Minerals Operating LP | Insider | Buy(P) | 1K | $32.96 | $33K |
| Dec 11, 2024 | Dorchester Minerals Operating LP | Insider | Buy(P) | 1K | $32.99 | $33K |
| Dec 11, 2024 | Dorchester Minerals Operating LP | Insider | Buy(P) | 1K | $33.01 | $33K |
| Dec 3, 2024 | Dorchester Minerals Operating LP | Insider | Other(J) | 66K | $34.41 | $2.3M |
| Dec 3, 2024 | Ehrman Bradley J | Chief Executive Officer | Option exercise(M) | 5K | — | $0 |
| Dec 3, 2024 | Ehrman Bradley J | Chief Executive Officer | Grant(A) | 14K | — | $0 |
| Dec 3, 2024 | Ehrman Bradley J | Chief Executive Officer | Grant(A) | 14K | — | $0 |
| Dec 3, 2024 | Moriyama Leslie A | Chief Financial Officer | Grant(A) | 12K | — | $0 |
| Dec 3, 2024 | Moriyama Leslie A | Chief Financial Officer | Grant(A) | 12K | — | $0 |
| Nov 14, 2024 | Moriyama Leslie A | Chief Financial Officer | Buy(P) | 3K | $32.60 | $105K |
| Jul 19, 2024 | Dorchester Minerals Operating LP | Insider | Buy(P) | 1K | $32.17 | $32K |
| Jul 19, 2024 | Dorchester Minerals Operating LP | Insider | Buy(P) | 1K | $32.31 | $32K |
| Jul 19, 2024 | Dorchester Minerals Operating LP | Insider | Buy(P) | 900 | $32.20 | $29K |
| Jul 17, 2024 | Dorchester Minerals Operating LP | Insider | Buy(P) | 2K | $32.50 | $61K |
| Jul 16, 2024 | Dorchester Minerals Operating LP | Insider | Buy(P) | 2K | $32.33 | $65K |
| Jul 16, 2024 | Dorchester Minerals Operating LP | Insider | Buy(P) | 1K | $32.31 | $32K |
| Jun 17, 2024 | Ehrman Bradley J | Chief Executive Officer | Buy(P) | 3K | $29.50 | $83K |
| May 22, 2024 | Dorchester Minerals Operating LP | Insider | Buy(P) | 1K | $31.48 | $31K |
| May 22, 2024 | Dorchester Minerals Operating LP | Insider | Buy(P) | 100 | $31.47 | $3K |
| May 22, 2024 | Dorchester Minerals Operating LP | Insider | Buy(P) | 1K | $31.40 | $31K |
| May 22, 2024 | Dorchester Minerals Operating LP | Insider | Buy(P) | 900 | $31.22 | $28K |
| May 22, 2024 | Dorchester Minerals Operating LP | Insider | Buy(P) | 1K | $31.46 | $31K |
| May 21, 2024 | Dorchester Minerals Operating LP | Insider | Buy(P) | 1K | $31.91 | $32K |
| May 21, 2024 | Dorchester Minerals Operating LP | Insider | Buy(P) | 1K | $31.93 | $32K |
| May 21, 2024 | Dorchester Minerals Operating LP | Insider | Buy(P) | 1K | $31.98 | $32K |
| May 21, 2024 | Dorchester Minerals Operating LP | Insider | Buy(P) | 1K | $31.99 | $32K |
| May 21, 2024 | Dorchester Minerals Operating LP | Insider | Buy(P) | 2K | $31.73 | $63K |
| May 17, 2024 | Moriyama Leslie A | Chief Financial Officer | Buy(P) | 1K | $31.65 | $32K |
| May 17, 2024 | Moriyama Leslie A | Chief Financial Officer | Buy(P) | 1K | $31.81 | $45K |
| Apr 5, 2024 | McManemin William Casey | Chairman of the Board, Director | Gift(G) | 25K | — | $0 |
| Feb 2, 2024 | Dorchester Minerals Operating LP | Insider | Buy(P) | 1K | $30.90 | $36K |
| Feb 2, 2024 | Dorchester Minerals Operating LP | Insider | Buy(P) | 96 | $30.95 | $3K |
| Jan 30, 2024 | Dorchester Minerals Operating LP | Insider | Buy(P) | 1K | $31.73 | $32K |
| Jan 30, 2024 | Dorchester Minerals Operating LP | Insider | Buy(P) | 1K | $31.69 | $32K |
| Jan 30, 2024 | Dorchester Minerals Operating LP | Insider | Buy(P) | 2K | $31.58 | $63K |
Insider transactions sourced from SEC EDGAR Form 4 filings, normalized within minutes of acceptance. "Buy"/"Sell" mark open-market transactions (codes P/S), the tradeable signal. Awards, option exercises and tax-withholding are shown with their raw code. All data is public domain.
Coverage: Form 4 filings indexed 2021-03-29 → 2026-07-14. Earlier history is backfilling; this window widens as it deepens.
Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).