Robert C. Vaughn is Director at DORCHESTER MINERALS, L.P. (DMLP). They have made 10 open-market trades across 1 company since 2008, most recently 2025-11-28.
CIK 0001203847
10 open-market purchases totalling $2.6M since 2008, never a sale. Across 10 scored buys the stock is up 3.7% at ninety days, and 2.3 points ahead of the S&P over the same stretch.
10 scored purchases · one row per filing · discretionary only
| Ticker | Shares | Value |
|---|---|---|
| DMLP | 20,547 | $624K |
Shares reported on the most recent Form 4, priced at the 2025-12-02 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 40% | 30% | 50% |
| Avg Move | -3.7% | -1.8% | +3.7% |
| Alpha | +0.2% | -1.3% | +2.3% |
| Scored | 10 | 10 | 10 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| DMLP | BUY | 2025-11-28 | 2025-12-02 | $21.36 | $4K | +4.7% | +7.3% | +24.9% |
| DMLP | BUY | 2025-11-25 | 2025-11-28 | $21.41 | $190K | +3.0% | +0.0% | +15.3% |
| DMLP | BUY | 2020-03-04 | 2020-03-04 | $14.76 | $333K | -23.6% | -35.3% | -18.4% |
| DMLP | BUY | 2017-12-19 | 2017-12-20 | $14.60 | $109K | +8.1% | +10.5% | +11.8% |
| DMLP | BUY | 2017-12-05 | 2017-12-06 | $14.72 | $91K | -1.7% | +4.1% | +4.4% |
| DMLP | BUY | 2017-06-30 | 2017-07-05 | $14.98 | $1.5M | +1.7% | -1.3% | +2.0% |
| DMLP | BUY | 2015-08-12 | 2015-08-12 | $14.90 | $34K | -7.3% | -0.7% | -0.7% |
| DMLP | BUY | 2008-12-11 | 2008-12-15 | $15.20 | $31K | -7.3% | -0.7% | -0.7% |
| DMLP | BUY | 2008-08-04 | 2008-12-03 | $19.06 | $108K | -7.3% | -0.7% | -0.7% |
| DMLP | BUY | 2008-01-24 | 2008-01-28 | $19.50 | $195K | -7.3% | -0.7% | -0.7% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.