Company profile
Dorchester Minerals, L.p. Insider Trading
DMLPEvery SEC Form 4 insider trading filing for Dorchester Minerals, L.p. (DMLP) since April 2023 — open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC. Why 2023?
- Exchange
- Nasdaq
- Sector
- Crude Petroleum & Natural Gas
- CIK
- 0001172358
- Filings
- 56
- Insiders
- 6
- Last filing
- 2026-08-19
Activity summary
No insider transactions in the last 30 days. The most recent was on August 19, 2026, when Leslie A Moriyama bought 5,197 shares. 56 filings from 6 insiders are on record below.
Three year balance
Buy and sell value by quarter, Q4 23 to Q3 26. Dorchester Minerals, L.p. insiders are net buyers across the period shown.
Bars below the rule are sales, above are purchases. Largest quarter on the chart is $2.3M.
90 day insight
Over the last 90 days, Dorchester Minerals, L.p. insiders bought $147K across 1 transaction with no open-market sales.
- Most active insider: Leslie A Moriyama with 1 transaction totaling $147K.
- Largest single purchase: $147K by Leslie A Moriyama on Aug 19, 2026.
Activity skews bullish — buys outpace sales.
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Aug 19, 2026 | Leslie A Moriyama | DMLP | Purchase | 5,197 | $28.30 | $147K |
| Jun 1, 2026 | DORCHESTER MINERALS OPERATING LP | DMLP | Purchase10b5 | 4,001 | $27.50 | $110K |
| Jun 1, 2026 | DORCHESTER MINERALS OPERATING LP | DMLP | Purchase10b5 | 2,500 | $27.64 | $69K |
| Jun 1, 2026 | DORCHESTER MINERALS OPERATING LP | DMLP | Purchase10b5 | 999 | $27.62 | $28K |
| May 20, 2026 | DORCHESTER MINERALS OPERATING LP | DMLP | Purchase10b5 | 1,500 | $28.24 | $42K |
45 more transactions hidden
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By total value filed.
Institutional Ownership
Top 13F-HR holders of Dorchester Minerals, L.p. as of 2026-06-30
Data source: quarterly 13F-HR filings — institutional holders report positions within 45 days of quarter end. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →