As of March 23, 2026, the three largest insider holders of MTDR are Joseph Wm Foran (Chairman And Ceo, 1.35Mn shares), David E Lancaster (Evp And Cfo, 479.84K shares), Matthew V Hairford (President, 440.61K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Joseph Wm Foran | Chairman And Ceo | 0 | 1,347,912 | 18 Jan, 2024 |
| David E Lancaster | Evp And Cfo | 479,837 | 0 | 04 Jan, 2022 |
| Matthew V Hairford | President | 0 | 440,614 | 15 Feb, 2022 |
| Craig N Adams | Evp, Co Coo, Chief Of Staff | 329,206 | 0 | 02 Jan, 2024 |
| Billy E Goodwin | President Operations | 317,324 | 0 | 02 Jan, 2024 |
| Van H Ii Singleton | Copresident Land, Ad,Planning | 296,374 | 0 | 08 Jan, 2026 |
| George G Krug | Evp Mktg And Midstream | 229,650 | 0 | 08 Jan, 2026 |
| William Thomas Elsener | Evp, Reservoir Engineering | 113,730 | 0 | 18 Feb, 2026 |
| Robert T Macalik | Evp, Chief Financial Officer | 108,757 | 0 | 18 Feb, 2026 |
| Glenn W Stetson | Evp Production | 94,470 | 0 | 18 Feb, 2026 |
| Brian J Willey | Evp And Cfo | 91,151 | 0 | 19 Feb, 2025 |
| Kenneth L. Stewart | 90,505 | 0 | 16 Jun, 2025 | |
| Timothy E. Parker | 89,869 | 0 | 16 Jun, 2025 | |
| Christopher P Calvert | Evp And Coo | 85,312 | 0 | 18 Feb, 2026 |
| Bryan A Erman | Co President,Clo Head Of Ma | 78,566 | 0 | 18 Feb, 2026 |
| Craig T Burkert | 76,304 | 0 | 08 Jun, 2021 | |
| Robert Gaines Baty | 73,396 | 0 | 04 Nov, 2025 | |
| Shelley F Appel | 66,859 | 3,350 | 06 Nov, 2025 | |
| William M Byerley | 55,811 | 0 | 16 Jun, 2025 | |
| Monika U Ehrman | 41,463 | 0 | 10 Mar, 2026 | |
| Rogers Julia P. Forrester | 40,908 | 0 | 18 Dec, 2023 | |
| Christopher P Calvert | Evp And Coo | 0 | 40,000 | 05 Nov, 2025 |
| Robert T Macalik | Evp, Chief Financial Officer | 0 | 35,039 | 10 Nov, 2025 |
| Paul W Harvey | 31,996 | 0 | 16 Jun, 2025 | |
| James M Howard | 25,368 | 0 | 17 Jun, 2024 | |
| Paul W Harvey | 0 | 15,767 | 03 Nov, 2025 | |
| Susan M Ward | 14,923 | 0 | 05 Nov, 2025 | |
| Reynald Baribault | 14,874 | 0 | 16 Jun, 2025 | |
| Benjamin T Colodney | Vp Chief Accounting Officer | 9,840 | 0 | 03 Nov, 2025 |
| Reynald Baribault | 0 | 6,915 | 06 Nov, 2025 | |
| Bryan A Erman | Co President,Clo Head Of Ma | 0 | 4,250 | 16 Sep, 2025 |
| Brian J Willey | Evp And Cfo | 0 | 2,950 | 04 Mar, 2025 |
| Benjamin T Colodney | Vp Chief Accounting Officer | 0 | 2,400 | 15 Sep, 2025 |
| Joseph Wm Foran | Chairman And Ceo | 2,322 | 0 | 03 Mar, 2026 |
| William D Lambert | Evp And Cfo | 0 | 650 | 15 Sep, 2025 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 06 Mar, 2026 | Monika U Ehrman | Common Stock | A | 267 | $56.29 | 41,463 | D | P |
| 27 Feb, 2026 | Joseph Wm Foran | Common Stock | A | 468 | $49.78 | 2,322 | D | P |
| 14 Feb, 2026 | Glenn W Stetson | Common Stock | D | 1,312 | $47.80 | 95,520 | D | F |
| 14 Feb, 2026 | Van H Ii Singleton | Phantom Units | D | 6,666 | $0.00 | 13,334 | D | M |
| 14 Feb, 2026 | George G Krug | Phantom Units | D | 6,666 | $0.00 | 13,334 | D | M |
| 14 Feb, 2026 | Christopher P Calvert | Common Stock | D | 1,312 | $47.80 | 86,362 | D | F |
| 14 Feb, 2026 | Joseph Wm Foran | Phantom Units | D | 13,333 | $0.00 | 26,667 | D | M |
| 14 Feb, 2026 | Robert T Macalik | Common Stock | D | 1,312 | $47.80 | 109,807 | D | F |
| 16 Feb, 2026 | William Thomas Elsener | Common Stock | D | 1,050 | $47.80 | 113,730 | D | F |
| 16 Feb, 2026 | Bryan A Erman | Common Stock | D | 1,050 | $47.80 | 78,566 | D | F |
| 16 Feb, 2026 | Christopher P Calvert | Common Stock | D | 1,050 | $47.80 | 85,312 | D | F |
| 14 Feb, 2026 | Joseph Wm Foran | Phantom Units | D | 10,000 | $0.00 | 10,000 | D | M |
| 14 Feb, 2026 | Van H Ii Singleton | Phantom Units | D | 5,000 | $0.00 | 5,000 | D | M |
| 14 Feb, 2026 | George G Krug | Phantom Units | D | 5,000 | $0.00 | 5,000 | D | M |
| 16 Feb, 2026 | Robert T Macalik | Common Stock | D | 1,050 | $47.80 | 108,757 | D | F |
| 14 Feb, 2026 | William Thomas Elsener | Phantom Units | D | 5,000 | $0.00 | 5,000 | D | M |
| 16 Feb, 2026 | Glenn W Stetson | Common Stock | D | 1,050 | $47.80 | 94,470 | D | F |
| 16 Feb, 2026 | George G Krug | Phantom Units | D | 5,000 | $0.00 | 0 | D | M |
| 16 Feb, 2026 | Joseph Wm Foran | Phantom Units | D | 10,000 | $0.00 | 0 | D | M |
| 16 Feb, 2026 | Van H Ii Singleton | Phantom Units | D | 5,000 | $0.00 | 0 | D | M |