| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
Director
1 company
Robert C Vaughn is Director at DMLP. Robert C Vaughn's net worth is not public. Form 4 filings only show shares in the companies where this person is an insider; those holdings are worth an estimated $580K at current prices.
Net of sales, the DMLP filings show accumulation of 84,878 shares.
Robert C Vaughn has 7 Form 4 filings on record from August 2015 to November 2025, all as Director at Dorchester Minerals (DMLP), 2015–2025.
The 20 reported transactions were 20 open-market purchases.
Counted by filing, the open-market trades come to 7 purchases worth about $1.3M and no sales.
The largest open-market purchase was 51,339 shares of DMLP at an average $14.98 on June 30, 2017, about $769K.
| Date | Ticker | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| Nov 28, 2025 | DMLP Dorchester Minerals, L.P. | Director | Buy | 195 | $21.36 | $4,165.20 | +1.0% | +16.2% | - | |
| Nov 25, 2025 | DMLP Dorchester Minerals, L.P. | Director | Buy | 4,615 | $21.41 | $98,800.11 | +29.3% | +15.9% | - | |
| Mar 4, 2020 | DMLP Dorchester Minerals, L.P. | Director | Buy | 12,790 | $14.76 | $188,772.34 | +2.6% | - | - | |
| Dec 19, 2017 | DMLP Dorchester Minerals, L.P. | Director | Buy | 7,475 | $14.60 | $109,133.11 | +90.5% | - | - | |
| Dec 6, 2017 | DMLP Dorchester Minerals, L.P. | Director | Buy | 6,186 | $14.72 | $91,033.91 | +1.3% | - | - | |
| Jun 30, 2017 | DMLP Dorchester Minerals, L.P. | Director | Buy | 51,339 | $14.98 | $769,058.22 | +12.0% | - | - | |
| Aug 12, 2015 | DMLP Dorchester Minerals, L.P. | Director | Buy | 2,278 | $14.90 | $33,942.20 | +12.9% | - | - |