As of June 09, 2026, Dorchester Minerals's top three insider holders are William Casey Mcmanemin (Chairman Of The Board, 706.48K shares), Bradley J Ehrman (Chief Executive Officer, 121.20K shares), Leslie A Moriyama (Chief Financial Officer, 98.21K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| William Casey Mcmanemin | Chairman Of The Board | 706,481 | 0 | 11 Apr, 2024 |
| Ronald Paul Trout | - | 19,672 | 0 | 06 Dec, 2021 |
| Robert C Vaughn | - | 20,547 | 0 | 02 Dec, 2025 |
| Charles William Russell | - | 14,767 | 0 | 06 Dec, 2021 |
| Leslie A Moriyama | Chief Financial Officer | 98,208 | 0 | 16 Dec, 2025 |
| Bradley J Ehrman | Chief Executive Officer | 0 | 121,197 | 26 Nov, 2025 |
| Minerals Operating Lp Dorchester | - | 55,017 | 0 | 13 Feb, 2026 |
| Allen D Lassiter | - | 18,767 | 0 | 06 Dec, 2021 |
| Frank Damon Box | - | 9,000 | 0 | 03 Dec, 2025 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 11 Feb, 2026 | Minerals Operating Lp Dorchester | Common Units | A | 10,000 | $25.29 | 45,017 | D | P |
| 12 Feb, 2026 | Minerals Operating Lp Dorchester | Common Units | A | 5,000 | $25.08 | 50,017 | D | P |
| 13 Feb, 2026 | Minerals Operating Lp Dorchester | Common Units | A | 5,000 | $25.29 | 55,017 | D | P |
| 19 Dec, 2025 | Minerals Operating Lp Dorchester | Common Units | A | 5,000 | $22.23 | 25,017 | D | P |
| 22 Dec, 2025 | Minerals Operating Lp Dorchester | Common Units | A | 10,000 | $22.30 | 35,017 | D | P |
| 17 Dec, 2025 | Minerals Operating Lp Dorchester | Common Units | A | 4,271 | $22.19 | 4,288 | D | P |
| 18 Dec, 2025 | Minerals Operating Lp Dorchester | Common Units | A | 15,729 | $22.28 | 20,017 | D | P |
| 15 Dec, 2025 | Leslie A Moriyama | Common Units | A | 4,351 | $0.00 | 99,964 | D | M |
| 15 Dec, 2025 | Leslie A Moriyama | Common Units | A | 4,351 | $0.00 | 99,964 | D | M |
| 15 Dec, 2025 | Leslie A Moriyama | Common Units | D | 1,756 | $0.00 | 98,208 | D | F |
| 15 Dec, 2025 | Bradley J Ehrman | Common Units | A | 4,727 | $0.00 | 34,437 | D | M |
| 15 Dec, 2025 | Bradley J Ehrman | Common Units | A | 4,727 | $0.00 | 34,437 | D | M |
| 15 Dec, 2025 | Leslie A Moriyama | Common Units | D | 1,756 | $0.00 | 98,208 | D | F |
| 15 Dec, 2025 | Bradley J Ehrman | Common Units | D | 1,719 | $0.00 | 32,718 | D | F |
| 15 Dec, 2025 | Leslie A Moriyama | Notional Units | D | 4,351 | $0.00 | 4,350 | D | M |
| 15 Dec, 2025 | Leslie A Moriyama | Notional Units | D | 4,351 | $0.00 | 4,350 | D | M |
| 15 Dec, 2025 | Bradley J Ehrman | Common Units | D | 1,719 | $0.00 | 32,718 | D | F |
| 15 Dec, 2025 | Bradley J Ehrman | Notional Units | D | 4,727 | $0.00 | 4,726 | D | M |
| 15 Dec, 2025 | Bradley J Ehrman | Notional Units | D | 4,727 | $0.00 | 4,726 | D | M |
| 03 Dec, 2025 | Bradley J Ehrman | Common Units | A | 4,810 | $0.00 | 31,459 | D | M |