DMLP
DORCHESTER MINERALS, L.P. · Energy · Market cap $1.4B
Insiders bought $566K net in the last 90 days ·0 sellers, 2 buyers· latest Form 4 filed Aug 19, 2026
Insider Buying
$2.4M
reported purchases (SEC code P)
Insider Selling
$0
reported sales (SEC code S)
Unique Insiders
5
in the rolling window
Latest filing
Aug 19, 2026
MORIYAMA LESLIE A
DORCHESTER MINERALS, L.P. (DMLP) has 20 SEC Form 4 filings (35 transaction rows) in the rolling window, disclosed by 5 distinct insiders. Most recent filing: Aug 19, 2026.
Inside the rolling window, 5 insiders at DORCHESTER MINERALS, L.P. reported 18 open-market purchases totaling $2.4M and no open-market sales. The most active filer is Insider DORCHESTER MINERALS OPERATING LP with 9 filings. Insiders have net bought $673K over the trailing 6 months. The most recent open-market filing is a purchase of 5,197 shares by Chief Financial Officer MORIYAMA LESLIE A, dated Aug 19, 2026, worth $147K.
- Industry:Oil & Gas Exploration & Production
- CEO:Bradley J. Ehrman
- Employees:26
- HQ:Dallas, TX, US
- IPO:2003-02-03
| Source | |||||||
|---|---|---|---|---|---|---|---|
MORIYAMA LESLIE AFirst in 9 months | Chief Financial Officer | Purchase | 5,197 | $147K | Aug 19 | +3.5% | SEC ↗ |
| Entity Under Common Control | Purchase | 7,500 | $207K | Jun 2 | +4.1% | SEC ↗ | |
DORCHESTER MINERALS OPERATING LPFirst in 3 months | Entity Under Common Control | Purchase | 7,500 | $212K | May 22 | +6.3% | SEC ↗ |
EHRMAN BRADLEY JFirst in 6 months | Chief Executive Officer | Purchase | 4,000 | $107K | May 12 | +7.6% | SEC ↗ |
| Entity Under Common Control | Purchase | 10,000 | $253K | Feb 13 | +14.6% | SEC ↗ | |
| Entity Under Common Control | Purchase | 5,000 | $125K | Feb 13 | +14.6% | SEC ↗ | |
| Entity Under Common Control | Purchase | 5,000 | $126K | Feb 13 | +14.6% | SEC ↗ | |
| Entity Under Common Control | Purchase | 5,000 | $111K | Dec 23 | — | SEC ↗ | |
| Entity Under Common Control | Purchase | 10,000 | $223K | Dec 23 | — | SEC ↗ | |
DORCHESTER MINERALS OPERATING LPFirst filing | Entity Under Common Control | Purchase | 4,271 | $95K | Dec 19 | — | SEC ↗ |
DORCHESTER MINERALS OPERATING LPFirst filing | Entity Under Common Control | Purchase | 15,729 | $350K | Dec 19 | — | SEC ↗ |
| Director | Purchase | 5,000 | $110K | Dec 3 | — | SEC ↗ | |
| Director | Purchase | 195 | $4K | Dec 2 | — | SEC ↗ | |
VAUGHN ROBERT CFirst filing | Director | Purchase | 4,615 | $99K | Nov 28 | — | SEC ↗ |
MORIYAMA LESLIE AFirst filing | Chief Financial Officer | Purchase | 3,041 | $65K | Nov 28 | — | SEC ↗ |
EHRMAN BRADLEY JFirst filing | Chief Executive Officer | Purchase | 1,000 | $21K | Nov 26 | — | SEC ↗ |
EHRMAN BRADLEY JFirst filing | Chief Executive Officer | Purchase | 2,487 | $54K | Nov 26 | — | SEC ↗ |
Box Frank DamonFirst filing | Director | Purchase | 4,000 | $102K | Sep 8 | — | SEC ↗ |
Congress trading DMLP 1 all-time
- RRep. August PflugerPurchase$15,001 - $50,0002026-03-13
STOCK Act disclosures are filed up to 45 days after the trade. Amount is a disclosed range, not an exact figure.
Frequently asked questions
How many SEC Form 4 insider filings does DMLP have?
DORCHESTER MINERALS, L.P. (DMLP) has 20 SEC Form 4 filings (35 transaction rows) in the rolling 365-day window, disclosed by 5 distinct insiders. Most recent filing: Aug 19, 2026.
When was the most recent SEC Form 4 filing for DMLP?
The most recent Form 4 filing for DMLP on Tracefour is dated Aug 19, 2026.
Who is the most active insider at DMLP?
The most active SEC Form 4 filer at DMLP in the rolling window is Insider DORCHESTER MINERALS OPERATING LP, with 9 filings.
What is the net insider flow at DMLP over the last 6 months?
Over the trailing 180 days, insiders at DMLP have net bought $673K based on SEC Form 4 disclosures.
What is the total insider buy and sell value at DMLP in the current window?
Inside the rolling window, insiders at DMLP bought $2.4M and sold $0 based on SEC Form 4 filings.
Can I get alerts for DMLP insider trading?
Yes. Tracefour sends a free email when a new SEC Form 4 purchase or sale is filed at DORCHESTER MINERALS, L.P. (DMLP). Alerts are set per company from the page itself, there is no paid tier, and each email links to the original filing on SEC EDGAR.
Related companies
DORCHESTER MINERALS, L.P. is in the Energy sector.