Transactions
11
Insider / DORCHESTER MINERALS, L.P.
MORIYAMA LESLIE A
Chief Financial Officer at DORCHESTER MINERALS, L.P.
- Company
- DORCHESTER MINERALS, L.P.
- Ticker
- DMLP
- First filing on record
- November 28, 2025
- Latest trade on record
- August 19, 2026
- SEC filings
- EDGAR ↗
MORIYAMA LESLIE A, Chief Financial Officer at DORCHESTER MINERALS, L.P., has disclosed 11 transactions in DMLP since November 28, 2025: 2 purchases (2 open-market buys) and 3 sales, worth about $698K at the reported prices. The latest was filed August 19, 2026, 0 days after the trade.
Open-market buys
2
Sales
3
Avg. disclosure lag
1.9d
Trading in charts
Trade timeline
When does this person trade, how big, and in which direction? Every trade in the last 12 months.
Bought (above the line)Sold (below the line)Other transaction
In the last 12 months MORIYAMA LESLIE A made 2 purchases worth $212K and 3 sales worth $140K, plus 6 other transactions. Dot size is the dollar amount.
Portfolio mix
Which stocks does this person trade most? Tile size is dollars traded, all time on record.
MORIYAMA LESLIE A has traded 1 stock on record; the largest by dollars is DMLP.
Reporting lag
Does this person report on time? One bar per filing against the Form 4 deadline.
On timeLate
0 of 5 filings on record were reported after the Form 4 deadline (two business days, counted here as 4 calendar days).
What kind of transactions
Most Form 4 rows are pay arriving or tax being withheld, not a decision to buy or sell. Only code P is an open-market purchase and code S an open-market sale. What each code means: Form 4 transaction codes.
| Code | Meaning | Rows | Shares | Value |
|---|---|---|---|---|
| M | Option exercise or conversion | 4 | 16,736 | — |
| F | Shares withheld for tax | 3 | 9,833 | $140K |
| A | Grant or award | 2 | 32,000 | $346K |
| P | Open-market purchase | 2 | 8,238 | $212K |
| Year | Rows | Bought | Sold |
|---|---|---|---|
| 2026 | 1 | 1 · $147K | 0 |
| 2025 | 10 | 1 · $65K | 3 · $140K |
Transactions
| Security | Side | Trade date | Disclosed | Lag | Shares | Price | Value | Flags | Source | Share |
|---|---|---|---|---|---|---|---|---|---|---|
| DMLP | Buy P | August 19, 2026 | August 19, 2026 | 0d | 5,197 | $28 | $147K | Form 4 ↗ | ||
| DMLP | Option / conversion M | December 15, 2025 | December 17, 2025 | 2d | 4,351 | — | — | derivative | Form 4 ↗ | |
| DMLP | Sell F | December 15, 2025 | December 17, 2025 | 2d | 1,756 | — | — | Form 4 ↗ | ||
| DMLP | Option / conversion M | December 15, 2025 | December 17, 2025 | 2d | 4,351 | — | — | Form 4 ↗ | ||
| DMLP | Option / conversion M | December 3, 2025 | December 5, 2025 | 2d | 4,017 | — | — | derivative | Form 4 ↗ | |
| DMLP | Sell F | December 3, 2025 | December 5, 2025 | 2d | 1,621 | — | — | Form 4 ↗ | ||
| DMLP | Option / conversion M | December 3, 2025 | December 5, 2025 | 2d | 4,017 | — | — | Form 4 ↗ | ||
| DMLP | Other A | December 1, 2025 | December 3, 2025 | 2d | 16,000 | — | — | derivative | Form 4 ↗ | |
| DMLP | Sell F | December 1, 2025 | December 3, 2025 | 2d | 6,456 | $22 | $140K | Form 4 ↗ | ||
| DMLP | Other A | December 1, 2025 | December 3, 2025 | 2d | 16,000 | $22 | $346K | Form 4 ↗ | ||
| DMLP | Buy P | November 25, 2025 | November 28, 2025 | 3d | 3,041 | $22 | $65K | Form 4 ↗ |
Filings
| Filed | Form | Accession | Rows | Status | Source |
|---|---|---|---|---|---|
| August 19, 2026 | Form 4 | 0001437749-26-028537 | 1 | published | EDGAR ↗ |
| December 17, 2025 | Form 4 | 0001437749-25-038194 | 3 | published | EDGAR ↗ |
| December 5, 2025 | Form 4 | 0001437749-25-037042 | 3 | published | EDGAR ↗ |
| December 3, 2025 | Form 4 | 0001437749-25-036815 | 3 | published | EDGAR ↗ |
| November 28, 2025 | Form 4 | 0001437749-25-036479 | 1 | published | EDGAR ↗ |
Other insiders at DORCHESTER MINERALS, L.P.
- DORCHESTER MINERALS OPERATING LP Insider 13 rows
- EHRMAN BRADLEY J Chief Executive Officer 12 rows
- VAUGHN ROBERT C Director 3 rows
- Box Frank Damon Director 1 row
Everyone on file, with contracts and lobbying under the company's name: DORCHESTER MINERALS, L.P..
Guides for this page
- What is SEC Form 4? Who files: officers, directors and owners of more than 10% of a class of the company's shares.
- Form 4 transaction codes P = purchase. S = sale. These are the two market trades.
- Insider buying vs insider selling Selling outweighs buying by a wide margin in normal times.
- Options and derivatives on Form 4 Table I = shares. Table II = options and other derivatives.
- What disclosure data cannot tell you Filings are late by design: up to 45 days for Congress, two business days for insiders.
Sources and method
| Source | Filings | Rows | First filed | Newest filed | Read the originals |
|---|---|---|---|---|---|
| SEC EDGAR, Form 4 | 5 | 11 | November 28, 2025 | August 19, 2026 | Form 4 list on EDGAR |
Site built October 27, 2026. Every row in the tables above links to its own filing. To quote a figure, use the Cite button at the top of the page; see how to cite and reuse.
Every row comes from the reporting owner's Form 4 as filed with the SEC (EDGAR ownership XML), read daily. "Value" is shares × the reported price; code P is an open-market purchase, S a sale, M an option exercise, A a grant. The lag is the filing date minus the trade date; Form 4 is due within two business days. Amendments (4/A) are not merged. Details on the methodology page; report an error on corrections.
Not investment advice. Figures are public disclosures shown as filed; they may lag the trade and may be amended later. No recommendation is made or implied.