Transactions
1
Insider / Matador Resources Co
Byerley William M
Director at Matador Resources Co
- Company
- Matador Resources Co
- Ticker
- MTDR
- First filing on record
- June 15, 2026
- Latest trade on record
- June 11, 2026
- SEC filings
- EDGAR ↗
Byerley William M, Director at Matador Resources Co, has disclosed 1 transaction in MTDR since June 15, 2026: 0 purchases (0 open-market buys) and 0 sales, worth about $0 at the reported prices. The latest was filed June 15, 2026, 4 days after the trade.
Open-market buys
0
Sales
0
Avg. disclosure lag
4.0d
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 Byerley William M reported 1 transaction that was neither a purchase nor a sale, such as stock awards, option exercises or shares withheld for tax.
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 |
|---|---|---|---|---|
| A | Grant or award | 1 | 3,642 | — |
| Year | Rows | Bought | Sold |
|---|---|---|---|
| 2026 | 1 | 0 | 0 |
Transactions
| Security | Side | Trade date | Disclosed | Lag | Shares | Price | Value | Flags | Source | Share |
|---|---|---|---|---|---|---|---|---|---|---|
| MTDR | Other A | June 11, 2026 | June 15, 2026 | 4d | 3,642 | — | — | Form 4 ↗ |
Filings
| Filed | Form | Accession | Rows | Status | Source |
|---|---|---|---|---|---|
| June 15, 2026 | Form 4 | 0001678424-26-000004 | 1 | published | EDGAR ↗ |
Other insiders at Matador Resources Co
- Foran Joseph Wm Chairman and CEO 21 rows
- Appel Shelley F Director 9 rows
- Calvert Christopher P EVP and COO 9 rows
- Stetson Glenn W EVP-Production 9 rows
- Elsener William Thomas EVP, Reservoir Engineering 8 rows
- Macalik Robert T EVP, Chief Financial Officer 8 rows
- Singleton Van H II CoPresident-Land, A&D,Planning 8 rows
- Erman Bryan A Co-President,CLO & Head of M&A 7 rows
- Colodney Benjamin T SVP & Chief Accounting Officer 5 rows
- Krug George G EVP - Mktg and Midstream 5 rows
Everyone on file, with contracts and lobbying under the company's name: Matador Resources Co.
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.
- 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 | 1 | 1 | June 15, 2026 | June 15, 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.