Filing Flows › Companies › Dorchester Minerals, L.P. › Timeline
Dorchester Minerals, L.P. stock timeline
A year of the price with every insider trade, planned sale, earnings report and material 8-K marked
252 sessions+32.8% to $27.53
Dorchester Minerals, L.P. (DMLP) stock rose 33% over the last 252 sessions, to $27.53. On the way it reported 0 quarters, its insiders filed 7 open-market trades, and the company filed 5 material 8-Ks. Each is marked on the price and listed with what the stock did next.
Each mark, and what followed
| Date | Kind | What | Next session | 5 sessions | 21 sessions |
|---|---|---|---|---|---|
| Oct 20, 2026 | 8-K | Material definitive agreement | +0.4% (0.0% vs SPY) | +1.8% (+1.9% vs SPY) | — |
| Aug 19, 2026 | Insider buy | Moriyama Leslie A bought $147K | +0.6% (+0.4% vs SPY) | +3.1% (+3.3% vs SPY) | +6.0% (+6.6% vs SPY) |
| Aug 7, 2026 | 8-K | Directors and officers: departures, appointments, pay | +1.7% (+1.7% vs SPY) | +6.1% (+5.7% vs SPY) | +12.0% (+13.0% vs SPY) |
| May 12, 2026 | Insider buy | Ehrman Bradley J bought $107K | +2.4% (+2.6% vs SPY) | +6.4% (+6.5% vs SPY) | +3.4% (+5.3% vs SPY) |
| Feb 17, 2026 | 8-K | Directors and officers: departures, appointments, pay | +0.6% (+0.1% vs SPY) | +0.6% (−0.1% vs SPY) | +7.4% (+10.6% vs SPY) |
| Dec 9, 2025 | 8-K | Directors and officers: departures, appointments, pay | −1.4% (−2.0% vs SPY) | −6.4% (−5.8% vs SPY) | +0.4% (−1.5% vs SPY) |
| Dec 3, 2025 | Insider buy | Box Frank Damon bought $110K | +2.9% (+2.5% vs SPY) | +6.9% (+6.7% vs SPY) | +7.6% (+7.1% vs SPY) |
| Nov 26, 2025 | Insider buy | Ehrman Bradley J bought $54K | −3.0% (−3.7% vs SPY) | +1.3% (0.0% vs SPY) | +1.0% (−1.5% vs SPY) |
| Nov 25, 2025 | Insider buy | Vaughn Robert C bought $99K | −2.2% (−3.1% vs SPY) | −3.8% (−5.7% vs SPY) | −0.8% (−4.3% vs SPY) |
| Nov 25, 2025 | Insider buy | Moriyama Leslie A bought $65K | −2.2% (−3.1% vs SPY) | −3.8% (−5.7% vs SPY) | −0.8% (−4.3% vs SPY) |
| Nov 25, 2025 | Insider buy | Ehrman Bradley J bought $21K | −2.2% (−3.1% vs SPY) | −3.8% (−5.7% vs SPY) | −0.8% (−4.3% vs SPY) |
| Nov 12, 2025 | 8-K | Delisting notice or listing-rule failure | +0.2% (+1.9% vs SPY) | −3.1% (0.0% vs SPY) | −4.6% (−4.4% vs SPY) |
Insiders’ record here
In the year on the chart, Dorchester Minerals, L.P.'s insiders reported 7 open-market buys ($603K) and 0 sales ($0). Of the 6 old enough to score, 5 were followed by the stock doing what the trade implied over the next 63 sessions (beating SPY after a buy, lagging it after a sale); the median excess return after a buy was +17.1% and after a sale —.
Across the whole universe (19,782 scored trades), insider buys beat the market 46% of the time and sales were followed by a lagging stock 61% of the time; buys of $1M or more 39%. Every pattern →
What this kind of 8-K usually did
| Item | 8-Ks | Next session, median | Up next session | 21 sessions, median | Typical size |
|---|---|---|---|---|---|
| 3.01 Delisting notice or listing-rule failure | 492 | 0.0% | 46% | −0.2% | ±2.1% |
| 5.02 Directors and officers: departures, appointments, pay | 39,174 | −0.1% | 48% | +0.7% | ±1.4% |
| 1.01 Material definitive agreement | 23,525 | 0.0% | 51% | +1.0% | ±1.4% |
Across every company in the move-odds universe, measured from the close before the filing. Every 8-K item ranked →
Dorchester Minerals, L.P.: every quarter → Live insider trades →
Prices are daily closes; filings and trades are as filed with the SEC (Form 4 within two business days of the trade, 8-K within four of the event). Moves after a mark are the stock's close-to-close change and the same for SPY; they describe the record, not what the next one will do. Not investment advice.