MTDR · Insider Trading
MATADOR RESOURCES COMPANY
Every open-market purchase and sale reported by MTDR officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-31 | Christopher P Calvert | EVP and CFO | Buy | +2,500 | +$141.60K |
| 2026-08-28 | Joseph Wm Foran | Chairman and CEO | Buy | +555 | +$30.24K |
| 2026-08-19 | Joseph Wm Foran | Chairman and CEO | Buy | +400 | +$21.46K |
| 2026-08-14 | Joseph Wm Foran | Chairman and CEO | Buy | +15,000 | +$778.80K |
| 2026-08-12 | Kenneth L. Stewart | Director | G | −9,400 | — |
| 2026-08-12 | Joseph Wm Foran | Chairman and CEO | Buy | +3,839 | +$196.40K |
| 2026-08-12 | William Thomas Elsener | EVP, Reservoir Engineering | Buy | +850 | +$43.30K |
| 2026-06-17 | Robert Gaines Baty | Director | Buy | +500 | +$25.72K |
| 2026-06-15 | Robert Gaines Baty | Director | A | +3,642 | — |
| 2026-06-15 | William M Byerley | Director | A | +3,642 | — |
| 2026-06-15 | Timothy E. Parker | Director | A | +3,642 | — |
| 2026-06-15 | Kenneth L. Stewart | Director | A | +3,642 | — |
| 2026-06-15 | Monika U Ehrman | Director | A | +3,642 | — |
| 2026-06-15 | Susan M Ward | Director | A | +3,642 | — |
| 2026-06-15 | Reynald Baribault | Director | A | +3,642 | — |
| 2026-06-15 | Shelley F Appel | Director | A | +3,642 | — |
| 2026-06-15 | Paul W Harvey | Director | A | +3,642 | — |
| 2026-06-11 | Glenn W Stetson | EVP and COO | Buy | +500 | +$26.70K |
| 2026-06-11 | Joseph Wm Foran | Chairman and CEO | Buy | +2,000 | +$106.14K |
| 2026-06-10 | Monika U Ehrman | Director | Buy | +362 | +$20.01K |
| 2026-06-08 | Joseph Wm Foran | Chairman and CEO | Buy | +2,000 | +$112.50K |
| 2026-06-02 | Joseph Wm Foran | Chairman and CEO | Buy | +482 | +$25.40K |
| 2026-06-02 | Christopher P Calvert | EVP and CFO | Buy | +1,500 | +$79.86K |
| 2026-06-02 | Benjamin T Colodney | SVP & Chief Accounting Officer | MIXED | −197 | −$15.63K |
| 2026-06-01 | Glenn W Stetson | EVP and COO | Buy | +500 | +$26.97K |
| 2026-05-28 | Joseph Wm Foran | Chairman and CEO | Buy | +4,675 | +$244.78K |
| 2026-03-10 | Monika U Ehrman | Director | Buy | +267 | +$15.03K |
| 2026-03-03 | Joseph Wm Foran | Chairman and CEO | Buy | +468 | +$23.30K |
| 2026-02-18 | Joseph Wm Foran | Chairman and CEO | MIXED | +36,667 deriv. | — |
| 2026-02-18 | Van H Singleton II | CoPresident-Land, A&D,Planning | MIXED | +18,334 deriv. | — |
| 2026-02-18 | Bryan A Erman | Co-President,CLO & Head of M&A | F | −1,050 | −$50.19K |
| 2026-02-18 | Robert T Macalik | EVP, Chief Financial Officer | F | −2,362 | −$112.90K |
| 2026-02-18 | Christopher P Calvert | EVP and COO | F | −2,362 | −$112.90K |
| 2026-02-18 | William Thomas Elsener | EVP, Reservoir Engineering | F | −1,050 | −$50.19K |
| 2026-02-18 | George G Krug | EVP - Mktg and Midstream | M | −16,666 deriv. | — |
| 2026-02-18 | Glenn W Stetson | EVP-Production | F | −2,362 | −$112.90K |
| 2026-01-08 | Joseph Wm Foran | Chairman and CEO | MIXED | +6,802 | −$198.69K |
| 2026-01-08 | Van H Singleton II | CoPresident-Land, A&D,Planning | MIXED | +3,284 | −$104.19K |
| 2026-01-08 | Bryan A Erman | Co-President,CLO & Head of M&A | MIXED | +1,926 | −$64.35K |
| 2026-01-08 | Robert T Macalik | EVP, Chief Financial Officer | MIXED | +1,926 | −$64.35K |
| 2026-01-08 | Christopher P Calvert | EVP and COO | MIXED | +1,926 | −$64.35K |
| 2026-01-08 | William Thomas Elsener | EVP, Reservoir Engineering | MIXED | +1,926 | −$64.35K |
| 2026-01-08 | George G Krug | EVP - Mktg and Midstream | MIXED | +3,284 | −$104.19K |
| 2026-01-08 | Glenn W Stetson | EVP-Production | MIXED | +1,995 | −$61.49K |
| 2025-11-10 | Joseph Wm Foran | Chairman and CEO | Buy | +1,000 | +$38.14K |
| 2025-11-10 | Van H Singleton II | CoPresident-Land, A&D,Planning | Buy | +500 | +$19.14K |
| 2025-11-10 | Robert T Macalik | EVP, Chief Financial Officer | Buy | +1,500 | +$57.38K |
| 2025-11-06 | Joseph Wm Foran | Chairman and CEO | Buy | +4,000 | +$153.76K |
| 2025-11-06 | Reynald Baribault | Director | Buy | +400 | +$15.40K |
| 2025-11-06 | Shelley F Appel | Director | Buy | +2,880 | +$108.75K |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| Van H Singleton II | CoPresident-Land, A&D,Planning | 301,395 | $17.34M |
| Shelley F Appel | Director | 297,917 | $17.14M |
| George G Krug | EVP - Mktg and Midstream | 232,166 | $13.35M |
| Robert T Macalik | EVP, Chief Financial Officer | 144,846 | $8.33M |
| Christopher P Calvert | EVP and CFO | 129,624 | $7.46M |
| William Thomas Elsener | EVP, Reservoir Engineering | 114,879 | $6.61M |
| Glenn W Stetson | EVP and COO | 95,470 | $5.49M |
| Brian J Willey | EVP and CFO | 94,101 | $5.41M |
| Timothy E. Parker | Director | 93,511 | $5.38M |
| Kenneth L. Stewart | Director | 84,747 | $4.87M |
| Bryan A Erman | Co-President,CLO & Head of M&A | 80,966 | $4.66M |
| Robert Gaines Baty | Director | 77,538 | $4.46M |
| William M Byerley | Director | 59,453 | $3.42M |
| Joseph Wm Foran | Chairman and CEO | 51,559 | $2.97M |
| Monika U Ehrman | Director | 45,467 | $2.62M |
| Reynald Baribault | Director | 25,431 | $1.46M |
| Susan M Ward | Director | 18,565 | $1.07M |
| Benjamin T Colodney | SVP & Chief Accounting Officer | 12,253 | $704.79K |
| William D Lambert | EVP and CFO | 10,650 | $612.59K |
| Paul W Harvey | Director | 8,021 | $461.37K |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the MTDR quote page; the site-wide leaderboard is on the insider transactions hub.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.