Dorchester Minerals (DMLP): Congress and insider trades
Who in Congress and inside the company traded DMLP, when each filing appeared, and what buying after each one would have earned against the S&P 500.
Key Facts
- Dorchester Minerals (DMLP) is a listed stock on NASDAQ.
- 1 member of Congress filed 1 buy and 0 sells of DMLP, the latest published 2026-04-16 (16 April 2026).
- Insiders filed 3 open market buys worth $566K and 0 sells worth $0, the latest filed 2026-08-19 (19 August 2026).
- Across 1 scored buy, Congress averaged -6.3% against the S&P 500 (SPY) over the 90 days after disclosure, with 0% of them ahead of the index. That result is too few trades to tell.
- Across 2 scored buys, Insiders averaged +7.8% against the S&P 500 (SPY) over the 90 days after disclosure, with 100% of them ahead of the index. That result is too few trades to draw a conclusion.
- Data as of 2026-09-29 (29 September 2026).
Congress trades in DMLP
as of 2026-04-16| Filed | Member | Type | Size | Days to file | 90 day vs S&P |
|---|---|---|---|---|---|
| 16 Apr 2026 | August Pfluger (R-TX) | buy | 15Kâ50K | 33 | -6.3% |
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Insider trades in DMLP
as of 2026-08-19| Filed | Insider | Type | Shares | Price | Value | 90 day vs S&P |
|---|---|---|---|---|---|---|
| 19 Aug 2026 | MORIYAMA LESLIE A | buy | 5,197 | $28.30 | $147K | n/a |
| 2 Jun 2026 | DORCHESTER MINERALS OPERATING | buy | 7,500 | $27.56 | $207K | +7.5% |
| 22 May 2026 | DORCHESTER MINERALS OPERATING | buy | 7,500 | $28.30 | $212K | +8.0% |
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Related pages
Frequently asked questions
Who has bought DMLP?
1 Congress buy by 1 member and 3 insider buys are on file. The tables on this page list every one.
Did buying DMLP after a disclosure beat the market?
Across 1 scored buy, Congress averaged -6.3% against the S&P 500 (SPY) over the 90 days after disclosure, with 0% of them ahead of the index. That result is too few trades to tell. Across 2 scored buys, Insiders averaged +7.8% against the S&P 500 (SPY) over the 90 days after disclosure, with 100% of them ahead of the index. That result is too few trades to draw a conclusion. A single stock is a small sample.
Sources: Congressional trades: STOCK Act disclosures, collected from CapitolTrades. Insider trades: SEC Form 4 filings, collected from Finviz. Prices: Yahoo Finance daily adjusted closes. Data as of 2026-09-29 (29 September 2026). About these sources.
Not investment advice. Past disclosed trades do not predict future returns. Disclosures are published late, so the trades shown are ones you could only have copied after the fact. Talk to a licensed adviser before you invest.