Diamondback Energy, Inc.
FANGLast close · Oct 16, 2026203.95+8.35 (+4.27%)
Market cap$57.1B
Between May 20, 2026 and Oct 5, 2026, Diamondback Energy (FANG) insiders filed 40 Form 4 transactions: 30 sales worth $5.8B in total and no open-market purchase; 10 of the sales were under 10b5-1 plans set in advance. The largest seller was Sgf Fang Holdings, Lp, Greth Lyndal, $2.0B. 10 other filings were grants, exercises or gifts, which say nothing about buying or selling.
40
0
30
10
Form 4 transactions
| Date | Insider | Title | Code | Plan | Shares | Price | Value |
|---|---|---|---|---|---|---|---|
| 2026-10-05 | Meloy Charles Alvin | Director | S | 10b5-1 | 6,354 | 184.99 | $1.2M |
| 2026-10-05 | Meloy Charles Alvin | Director | S | 10b5-1 | 6,476 | 184.31 | $1.2M |
| 2026-10-05 | Meloy Charles Alvin | Director | S | 10b5-1 | 20,503 | 183.17 | $3.8M |
| 2026-09-16 | SGF FANG Holdings, LP, Greth Lyndal | 10% Owner | S | 9M | 205.26 | $1.9B | |
| 2026-09-16 | SGF FANG Holdings, LP, Greth Lyndal | 10% Owner | S | 9M | 205.26 | $1.9B | |
| 2026-09-15 | Zmigrosky Matt | EVP, Chief Legal and Admin Off | S | 1,326 | 212.56 | $281,848.5 | |
| 2026-09-15 | Dick Teresa L. | EVP Accounting, Assist. Sec. | S | 5,000 | 210.00 | $1.1M | |
| 2026-09-15 | Meloy Charles Alvin | Director | G | 25,000 | 0.00 | $0 | |
| 2026-09-15 | Meloy Charles Alvin | Director | G | 12,500 | 0.00 | $0 | |
| 2026-09-15 | Meloy Charles Alvin | Director | G | 12,500 | 0.00 | $0 | |
| 2026-09-16 | Meloy Charles Alvin | Director | G | 12,500 | 0.00 | $0 | |
| 2026-09-16 | Meloy Charles Alvin | Director | G | 12,500 | 0.00 | $0 | |
| 2026-09-16 | Meloy Charles Alvin | Director | G | 25,000 | 0.00 | $0 | |
| 2026-09-11 | Stice Travis D. | Director | S | 75,000 | 204.31 | $15.3M | |
| 2026-09-10 | Zmigrosky Matt | EVP, Chief Legal and Admin Off | F | 861 | 202.63 | $174,464.4 | |
| 2026-09-10 | Barkmann Albert | Exec. VP and Chief Engineer | F | 682 | 202.63 | $138,193.7 | |
| 2026-08-20 | Van't Hof Matthew Kaes | Chief Executive Officer | S | 9,500 | 214.64 | $2.0M | |
| 2026-08-20 | Van't Hof Matthew Kaes | Chief Executive Officer | S | 500 | 215.06 | $107,528 | |
| 2026-08-20 | Wesson Daniel N | Exec. VP & COO | S | 7,500 | 215.21 | $1.6M | |
| 2026-08-21 | Plaumann Mark Lawrence | Director | S | 1,000 | 210.58 | $210,576.6 | |
| 2026-08-14 | Zmigrosky Matt | EVP, Chief Legal and Admin Off | S | 2,500 | 202.77 | $506,930.3 | |
| 2026-08-14 | Thompson Jere W III | CFO, Executive VP | S | 500 | 204.14 | $102,070 | |
| 2026-08-11 | Van't Hof Matthew Kaes | Chief Executive Officer | S | 5,000 | 202.46 | $1.0M | |
| 2026-08-03 | Meloy Charles Alvin | Director | S | 10b5-1 | 3,986 | 197.06 | $785,473.6 |
| 2026-08-03 | Meloy Charles Alvin | Director | S | 10b5-1 | 7,562 | 197.91 | $1.5M |
| 2026-08-03 | Meloy Charles Alvin | Director | S | 10b5-1 | 19,055 | 198.74 | $3.8M |
| 2026-08-03 | Meloy Charles Alvin | Director | S | 10b5-1 | 2,730 | 199.44 | $544,481.8 |
| 2026-06-17 | Van't Hof Matthew Kaes | Chief Executive Officer | G | 2,674 | 0.00 | $0 | |
| 2026-06-16 | Meloy Charles Alvin | Director | S | 10b5-1 | 14,538 | 186.37 | $2.7M |
| 2026-06-16 | Meloy Charles Alvin | Director | S | 10b5-1 | 64,747 | 187.25 | $12.1M |
| 2026-06-16 | Meloy Charles Alvin | Director | S | 10b5-1 | 4,049 | 187.68 | $759,900.1 |
| 2026-06-09 | Plaumann Mark Lawrence | Director | S | 500 | 196.50 | $98,250 | |
| 2026-06-04 | Dick Teresa L. | CAO, Exec. VP, Assist. Sec. | S | 5,000 | 205.00 | $1.0M | |
| 2026-06-04 | SGF FANG Holdings, LP, Greth Lyndal | 10% Owner | S | 10M | 204.25 | $2.0B | |
| 2026-06-03 | Van't Hof Matthew Kaes | Chief Executive Officer | S | 5,000 | 205.00 | $1.0M | |
| 2026-06-03 | Van't Hof Matthew Kaes | Chief Executive Officer | S | 10,000 | 210.00 | $2.1M | |
| 2026-06-03 | Zmigrosky Matt | EVP, Chief Legal and Admin Off | S | 5,000 | 210.00 | $1.1M | |
| 2026-06-02 | Dick Teresa L. | CAO, Exec. VP, Assist. Sec. | S | 7,000 | 200.90 | $1.4M | |
| 2026-06-01 | Zmigrosky Matt | EVP, Chief Legal and Admin Off | S | 5,000 | 200.54 | $1.0M | |
| 2026-05-20 | Trent Melanie Montague | Director | A | 982 | 0.00 | $0 |
Codes are the SEC's: P open-market purchase, S open-market sale; M exercise, F tax withholding, A grant and G gift are routine. A 10b5-1 flag means the trade ran under a plan adopted in advance. Method notes in where the numbers come from.