| Aug 19, 2026 (view filing)4:14 PM ET | Aug 19 | Same day | Moriyama Leslie AChief Financial Officer | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +5.20K | $28.30 | +$147.1K | +5.3%103.4K after | |
| Jun 2, 2026 (view filing) | Jun 1 | 1 day | Dorchester Minerals Operating LPOther: Entity Under Common Control | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +7.50K | $27.56 | +$206.7K | +12.0%70.0K after | 3 lotsThis row combines 3 trades of the same kind from one filing. The price is the value-weighted average.10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| May 22, 2026 (view filing) | May 20 | 2 days | Dorchester Minerals Operating LPOther: Entity Under Common Control | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +7.50K | $28.30 | +$212.3K | +13.6%62.5K after | 2 lotsThis row combines 2 trades of the same kind from one filing. The price is the value-weighted average.10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| May 12, 2026 (view filing) | May 12 | Same day | Ehrman Bradley JChief Executive Officer | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +4.00K | $26.78 | +$107.1K | +2.9%142.7K after | |
| Feb 13, 2026 (view filing) | Feb 11-13 | 2 days | Dorchester Minerals Operating LPOther: Entity Under Common Control | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +20.0K | $25.24 | +$504.8K | +57.1%55.0K after | 3 lotsThis row combines 3 trades of the same kind from one filing. The price is the value-weighted average.10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Dec 23, 2025 (view filing) | Dec 19-22 | 4 days | Dorchester Minerals Operating LPOther: Entity Under Common Control | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +15.0K | $22.28 | +$334.1K | +74.9%35.0K after | 2 lotsThis row combines 2 trades of the same kind from one filing. The price is the value-weighted average.10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Dec 19, 2025 (view filing) | Dec 17-18 | 2 days | Dorchester Minerals Operating LPOther: Entity Under Common Control | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +20.0K | $22.26 | +$445.2K | +117,647.1%20.0K after | 2 lotsThis row combines 2 trades of the same kind from one filing. The price is the value-weighted average.10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Dec 3, 2025 (view filing) | Dec 3 | Same day | Box Frank DamonDirector | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +5.00K | $21.97 | +$109.8K | +125.0%9.00K after | |
| Dec 2, 2025 (view filing) | Nov 28 | 4 days | Vaughn Robert CDirector | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +195 | $21.36 | +$4.17K | +1.0%20.5K after | |
| Nov 28, 2025 (view filing) | Nov 25 | 3 days | Vaughn Robert CDirector | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +4.62K | $21.41 | +$98.8K | +29.3%20.4K after | 2 lotsThis row combines 2 trades of the same kind from one filing. The price is the value-weighted average. |
| Nov 28, 2025 (view filing) | Nov 25 | 3 days | Moriyama Leslie AChief Financial Officer | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +3.04K | $21.50 | +$65.4K | +3.8%83.7K after | |
| Nov 26, 2025 (view filing) | Nov 25-26 | 1 day | Ehrman Bradley JChief Executive Officer | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +3.49K | $21.50 | +$75.0K | +3.0%121.2K after | 2 lotsThis row combines 2 trades of the same kind from one filing. The price is the value-weighted average. |
| Sep 8, 2025 (view filing) | Sep 5 | 3 days | Box Frank DamonDirector | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +4.00K | $25.57 | +$102.3K | New position4.00K after | |
| May 1, 2025 (view filing) | Apr 30 | 1 day | Dorchester Minerals Operating LPOther: Entity Under Common Control | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +10.0K | $28.76 | +$287.6K | +20.8%58.0K after | 10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Mar 4, 2025 (view filing) | Mar 3 | 1 day | Ehrman Bradley JChief Executive Officer | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +3.36K | $29.80 | +$100.0K | +2.9%117.7K after | |
| Feb 7, 2025 (view filing) | Feb 6 | 1 day | Dorchester Minerals Operating LPOther: Entity Under Common Control | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +335 | $31.06 | +$10.4K | +0.7%48.0K after | 10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Feb 4, 2025 (view filing) | Jan 31-Feb 4 | 4 days | Dorchester Minerals Operating LPOther: Entity Under Common Control | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +14.0K | $31.32 | +$438.5K | +41.6%47.7K after | 2 lotsThis row combines 2 trades of the same kind from one filing. The price is the value-weighted average.10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Dec 30, 2024 (view filing) | Dec 30 | Same day | Dorchester Minerals Operating LPOther: Entity Under Common Control | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +954 | $33.19 | +$31.7K | +2.9%33.7K after | 3 lotsThis row combines 3 trades of the same kind from one filing. The price is the value-weighted average.10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Dec 26, 2024 (view filing) | Dec 23-26 | 3 days | Dorchester Minerals Operating LPOther: Entity Under Common Control | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +10.5K | $32.46 | +$340.8K | +47.2%32.7K after | 4 lotsThis row combines 4 trades of the same kind from one filing. The price is the value-weighted average.10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Dec 12, 2024 (view filing) | Dec 11-12 | 1 day | Dorchester Minerals Operating LPOther: Entity Under Common Control | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +22.0K | $32.97 | +$725.3K | +9,649.1%22.2K after | 11 lotsThis row combines 11 trades of the same kind from one filing. The price is the value-weighted average.10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Nov 15, 2024 (view filing) | Nov 14 | 1 day | Moriyama Leslie AChief Financial Officer | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +3.22K | $32.60 | +$104.9K | +4.7%71.4K after | |
| Jul 23, 2024 (view filing) | Jul 19 | 4 days | Dorchester Minerals Operating LPOther: Entity Under Common Control | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +2.90K | $32.23 | +$93.5K | +4.6%66.4K after | 3 lotsThis row combines 3 trades of the same kind from one filing. The price is the value-weighted average.10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Jul 18, 2024 (view filing) | Jul 16-17 | 2 days | Dorchester Minerals Operating LPOther: Entity Under Common Control | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +4.88K | $32.39 | +$158.0K | +8.3%63.5K after | 3 lotsThis row combines 3 trades of the same kind from one filing. The price is the value-weighted average.10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Jun 18, 2024 (view filing) | Jun 17 | 1 day | Ehrman Bradley JChief Executive Officer | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +2.80K | $29.50 | +$82.6K | +2.8%102.7K after | |
| May 23, 2024 (view filing) | May 21-22 | 2 days | Dorchester Minerals Operating LPOther: Entity Under Common Control | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +10.0K | $31.69 | +$316.9K | +20.6%58.6K after | 10 lotsThis row combines 10 trades of the same kind from one filing. The price is the value-weighted average.10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| May 20, 2024 (view filing) | May 17 | 3 days | Moriyama Leslie AChief Financial Officer | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +2.43K | $31.74 | +$77.1K | +3.7%68.2K after | 2 lotsThis row combines 2 trades of the same kind from one filing. The price is the value-weighted average. |
| Feb 5, 2024 (view filing) | Feb 2 | 3 days | Dorchester Minerals Operating LPOther: Entity Under Common Control | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +1.27K | $30.90 | +$39.4K | +2.7%48.6K after | 2 lotsThis row combines 2 trades of the same kind from one filing. The price is the value-weighted average.10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Feb 1, 2024 (view filing) | Jan 30 | 2 days | Dorchester Minerals Operating LPOther: Entity Under Common Control | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +5.00K | $31.66 | +$158.3K | +11.8%47.3K after | 4 lotsThis row combines 4 trades of the same kind from one filing. The price is the value-weighted average.10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Jan 29, 2024 (view filing) | Jan 25 | 4 days | Dorchester Minerals Operating LPOther: Entity Under Common Control | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +7.50K | $33.47 | +$251.0K | +21.6%42.3K after | 8 lotsThis row combines 8 trades of the same kind from one filing. The price is the value-weighted average.10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Dec 27, 2023 (view filing) | Dec 26 | 1 day | Dorchester Minerals Operating LPOther: Entity Under Common Control | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +4.92K | $31.90 | +$157.0K | +16.5%34.8K after | 8 lotsThis row combines 8 trades of the same kind from one filing. The price is the value-weighted average.10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Dec 22, 2023 (view filing) | Dec 21-22 | 1 day | Dorchester Minerals Operating LPOther: Entity Under Common Control | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +8.51K | $31.86 | +$271.0K | +39.8%29.9K after | 10 lotsThis row combines 10 trades of the same kind from one filing. The price is the value-weighted average.10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Dec 21, 2023 (view filing) | Dec 19-20 | 2 days | Dorchester Minerals Operating LPOther: Entity Under Common Control | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +21.3K | $31.43 | +$669.6K | +31,800.0%21.4K after | 19 lotsThis row combines 19 trades of the same kind from one filing. The price is the value-weighted average.10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Nov 13, 2023 (view filing) | Nov 10 | 3 days | Moriyama Leslie AChief Financial Officer | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +8.01K | $28.12 | +$225.3K | +16.3%57.1K after | |
| Nov 13, 2023 (view filing) | Nov 10 | 3 days | Ehrman Bradley JChief Executive Officer | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +4.45K | $28.03 | +$124.8K | +5.3%89.2K after | |
| Jun 15, 2023 (view filing) | Jun 14 | 1 day | Dorchester Minerals Operating LPOther: Entity Under Common Control | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +5.00K | $29.10 | +$145.5K | +14.3%40.0K after | 5 lotsThis row combines 5 trades of the same kind from one filing. The price is the value-weighted average.10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Jun 1, 2023 (view filing) | May 30-31 | 2 days | Dorchester Minerals Operating LPOther: Entity Under Common Control | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +10.0K | $28.53 | +$285.3K | +40.1%35.0K after | 12 lotsThis row combines 12 trades of the same kind from one filing. The price is the value-weighted average.10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Mar 23, 2023 (view filing) | Mar 22 | 1 day | Dorchester Minerals Operating LPOther: Entity Under Common Control | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +4.00K | $28.12 | +$112.5K | +19.1%25.0K after | 4 lotsThis row combines 4 trades of the same kind from one filing. The price is the value-weighted average. |
| Mar 6, 2023 (view filing) | Mar 2-3 | 4 days | Dorchester Minerals Operating LPOther: Entity Under Common Control | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +11.0K | $30.97 | +$340.7K | +110.4%21.0K after | 7 lotsThis row combines 7 trades of the same kind from one filing. The price is the value-weighted average. |
| Dec 13, 2022 (view filing) | Dec 9-12 | 4 days | Dorchester Minerals Operating LPOther: Entity Under Common Control | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +15.0K | $28.05 | +$420.7K | +51.8%44.0K after | 16 lotsThis row combines 16 trades of the same kind from one filing. The price is the value-weighted average. |
| Dec 8, 2022 (view filing) | Dec 6 | 2 days | Dorchester Minerals Operating LPOther: Entity Under Common Control | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +20.0K | $28.59 | +$571.7K | +223.0%29.0K after | 10 lotsThis row combines 10 trades of the same kind from one filing. The price is the value-weighted average. |
| Nov 17, 2022 (view filing) | Nov 16 | 1 day | Moriyama Leslie AChief Financial Officer | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +1.73K | $28.75 | +$49.8K | +4.4%40.7K after | |
| Nov 14, 2022 (view filing) | Nov 10 | 4 days | Ehrman Bradley JChief Executive Officer | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +1.76K | $28.73 | +$50.6K | +2.4%75.6K after | |
| Jun 15, 2022 (view filing) | Jun 14 | 1 day | Moriyama Leslie AChief Financial Officer | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +1.15K | $29.70 | +$34.1K | +3.0%39.0K after | |
| Mar 10, 2022 (view filing) | Mar 9 | 1 day | Ehrman Bradley JChief Operating Officer | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +1.31K | $23.03 | +$30.1K | +1.8%73.8K after | |
| Mar 10, 2022 (view filing) | Mar 8-9 | 2 days | Moriyama Leslie AChief Financial Officer | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +2.50K | $24.37 | +$60.8K | +7.1%37.8K after | 2 lotsThis row combines 2 trades of the same kind from one filing. The price is the value-weighted average. |
| Dec 20, 2021 (view filing) | Dec 20 | Same day | Ehrman Bradley JChief Operating Officer | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +850 | $18.91 | +$16.1K | +1.3%67.6K after | |
| Nov 8, 2021 (view filing) | Nov 4-5 | 4 days | Dorchester Minerals Operating LPOther: Entity Under Common Control | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +6.38K | $19.17 | +$122.2K | +20.2%37.9K after | 5 lotsThis row combines 5 trades of the same kind from one filing. The price is the value-weighted average. |
| Nov 3, 2021 (view filing) | Nov 2 | 1 day | Dorchester Minerals Operating LPOther: Entity Under Common Control | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +4.00K | $19.28 | +$77.1K | +14.5%31.5K after | 2 lotsThis row combines 2 trades of the same kind from one filing. The price is the value-weighted average. |
| Aug 20, 2021 (view filing) | Aug 19 | 1 day | Moriyama Leslie AChief Financial Officer | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +2.13K | $15.55 | +$33.2K | +7.3%31.3K after | |
| Aug 16, 2021 (view filing) | Aug 13 | 3 days | Dorchester Minerals Operating LPOther: Entity Under Common Control | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Units | +3.45K | $16.30 | +$56.2K | +14.3%27.5K after | 6 lotsThis row combines 6 trades of the same kind from one filing. The price is the value-weighted average. |
