Diamondback Energy's top three insider shareholders as of September 09, 2026 are Fang Holdings, Lp Sgf (TenPercentOwner, 84.04Mn shares), Fang Holdings, Lp Sgf (TenPercentOwner, 74.04Mn shares), Lyndal Greth (TenPercentOwner, 31.95Mn shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Fang Holdings, Lp Sgf | TenPercentOwner | 74,036,722 | 0 | 74,036,722 | 68.8% | 05 Jun, 2026 |
| 2 | Lyndal Greth | TenPercentOwner | 0 | 31,947,366 | 31,947,366 | 29.7% | 23 Sep, 2024 |
| 3 | Charles Alvin Meloy | Director | 0 | 818,197 | 818,197 | 0.8% | 04 Aug, 2026 |
| 4 | Travis D. Stice | Executive Chairman | 124,727 | 0 | 124,727 | 0.1% | 21 May, 2026 |
| 5 | Russell Pantermuehl | Exec. Vp Chief Engineer | 123,419 | 0 | 123,419 | 0.1% | 09 Dec, 2021 |
| 6 | Hof Matthew Kaes Van'T | Chief Executive Officer | 115,940 | 0 | 115,940 | 0.1% | 24 Aug, 2026 |
| 7 | Teresa L. Dick | Cao, Exec. Vp, Assist. Sec. | 80,755 | 0 | 80,755 | 0.1% | 08 Jun, 2026 |
| 8 | Daniel N Wesson | Exec. Vp Coo | 70,789 | 0 | 70,789 | 0.1% | 24 Aug, 2026 |
| 9 | Matt Zmigrosky | Evp, Chief Legal And Admin Off | 38,892 | 0 | 38,892 | 0.0% | 17 Aug, 2026 |
| 10 | Albert Barkmann | Exec. Vp And Chief Engineer | 24,571 | 0 | 24,571 | 0.0% | 19 May, 2026 |
| 11 | Jere W Iii Thompson | Cfo, Executive Vp | 18,475 | 0 | 18,475 | 0.0% | 17 Aug, 2026 |
| 12 | Melanie Montague Trent | Director | 15,039 | 0 | 15,039 | 0.0% | 21 May, 2026 |
| 13 | Thomas F. Hawkins | Exec. Vp Special Projects | 13,795 | 0 | 13,795 | 0.0% | 03 Mar, 2022 |
| 14 | Michael P Cross | Director | 0 | 13,538 | 13,538 | 0.0% | 13 Jun, 2022 |
| 15 | David L Houston | Director | 12,600 | 0 | 12,600 | 0.0% | 10 Jun, 2024 |
| 16 | Mark Lawrence Plaumann | Director | 12,437 | 0 | 12,437 | 0.0% | 24 Aug, 2026 |
| 17 | Stephanie K. Mains | Director | 11,635 | 0 | 11,635 | 0.0% | 21 May, 2026 |
| 18 | Vincent K Brooks | Director | 0 | 11,635 | 11,635 | 0.0% | 21 May, 2026 |
| 19 | Lance W Robertson | Director | 9,999 | 0 | 9,999 | 0.0% | 21 May, 2026 |
| 20 | Jennifer Soliman | Exec. Vp And Chief Hr Officer | 9,506 | 0 | 9,506 | 0.0% | 09 Mar, 2022 |
| 21 | Frank D. Tsuru | Director | 8,129 | 0 | 8,129 | 0.0% | 21 May, 2026 |
| 22 | Rebecca A Klein | Director | 6,129 | 0 | 6,129 | 0.0% | 21 May, 2026 |
| 23 | Robert K Reeves | Director | 6,066 | 0 | 6,066 | 0.0% | 21 May, 2026 |
| 24 | Chad Mcallaster | Evp Operations | 5,889 | 0 | 5,889 | 0.0% | 03 Mar, 2026 |
| 25 | Steven E West | Director | 5,466 | 0 | 5,466 | 0.0% | 21 May, 2026 |
| 26 | Darin G Holderness | Director | 2,798 | 0 | 2,798 | 0.0% | 21 May, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 20 Aug, 2026 | Daniel N Wesson | Exec. Vp Coo | Disposed S | 7,500 | $215.21 | $1.61Mn | 70,789 | Direct |
| 20 Aug, 2026 | Hof Matthew Kaes Van'T | Chief Executive Officer | Disposed S | 9,500 | $214.64 | $2.04Mn | 116,440 | Direct |
| 21 Aug, 2026 | Mark Lawrence Plaumann | Director | Disposed S | 1,000 | $210.58 | $210.58K | 12,437 | Direct |
| 20 Aug, 2026 | Hof Matthew Kaes Van'T | Chief Executive Officer | Disposed S | 500 | $215.06 | $107.53K | 115,940 | Direct |
| 14 Aug, 2026 | Matt Zmigrosky | Evp, Chief Legal And Admin Off | Disposed S | 2,500 | $202.77 | $506.93K | 38,892 | Direct |
| 14 Aug, 2026 | Jere W Iii Thompson | Cfo, Executive Vp | Disposed S | 500 | $204.14 | $102.07K | 18,475 | Direct |
| 11 Aug, 2026 | Hof Matthew Kaes Van'T | Chief Executive Officer | Disposed S | 5,000 | $202.46 | $1.01Mn | 125,940 | Direct |
| 03 Aug, 2026 | Charles Alvin Meloy | Director | Disposed S | 3,986 | $197.06 | $785.47K | 847,544 | Indirect |
| 03 Aug, 2026 | Charles Alvin Meloy | Director | Disposed S | 7,562 | $197.91 | $1.50Mn | 839,982 | Indirect |
| 03 Aug, 2026 | Charles Alvin Meloy | Director | Disposed S | 19,055 | $198.74 | $3.79Mn | 820,927 | Indirect |
| 03 Aug, 2026 | Charles Alvin Meloy | Director | Disposed S | 2,730 | $199.44 | $544.48K | 818,197 | Indirect |
| 17 Jun, 2026 | Hof Matthew Kaes Van'T | Chief Executive Officer | Disposed G | 2,674 | $0.00 | $0 | 130,940 | Direct |
| 16 Jun, 2026 | Charles Alvin Meloy | Director | Disposed S | 14,538 | $186.37 | $2.71Mn | 920,326 | Indirect |
| 16 Jun, 2026 | Charles Alvin Meloy | Director | Disposed S | 64,747 | $187.25 | $12.12Mn | 855,579 | Indirect |
| 16 Jun, 2026 | Charles Alvin Meloy | Director | Disposed S | 4,049 | $187.68 | $759.90K | 851,530 | Indirect |
| 09 Jun, 2026 | Mark Lawrence Plaumann | Director | Disposed S | 500 | $196.50 | $98.25K | 13,437 | Direct |
| 04 Jun, 2026 | Teresa L. Dick | Cao, Exec. Vp, Assist. Sec. | Disposed S | 5,000 | $205.00 | $1.03Mn | 80,755 | Direct |
| 04 Jun, 2026 | Fang Holdings, Lp Sgf | TenPercentOwner | Disposed S | 10,000,000 | $204.25 | $2.04Bn | 74,036,722 | Direct |
| 03 Jun, 2026 | Hof Matthew Kaes Van'T | Chief Executive Officer | Disposed S | 5,000 | $205.00 | $1.03Mn | 143,614 | Direct |
| 03 Jun, 2026 | Matt Zmigrosky | Evp, Chief Legal And Admin Off | Disposed S | 5,000 | $210.00 | $1.05Mn | 41,392 | Direct |