Zmigrosky Matt, EVP and Chief Legal and Admin Officer at Diamondback Energy ($FANG), sold shares once on the open market in the last year, totaling about $519,000. His most recent sale occurred on November 14, 2025. This places him 6,351st out of nearly 12,000 insiders by sale value, well below the average of $8.6 million across about six transactions per insider. He made no open market purchases during this period.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 18, 2026 | Diamondback Energy, Inc. | $FANG | Zmigrosky Matt | EVP, Chief Legal and Admin Off | S | Common Stock | 4101 | $190.51 | 56,392.0000 | 286,876,206 | 6.78% | 0.00% |
| March 13, 2026 | Diamondback Energy, Inc. | $FANG | Zmigrosky Matt | EVP, Chief Legal and Admin Off | S | Common Stock | 20899 | $180.00 | 60,493.0000 | 286,876,206 | 25.68% | 0.01% |
| March 1, 2026 | Diamondback Energy, Inc. | $FANG | Zmigrosky Matt | EVP, Chief Legal and Admin Off | F | Common Stock | 995 | $174.08 | 81,392.0000 | 286,876,206 | 1.21% | 0.00% |
| March 1, 2026 | Diamondback Energy, Inc. | $FANG | Zmigrosky Matt | EVP, Chief Legal and Admin Off | A | Common Stock | 7583 | $0.00 | 71,112.0000 | 286,876,206 | 11.94% | 0.00% |
| March 1, 2026 | Diamondback Energy, Inc. | $FANG | Zmigrosky Matt | EVP, Chief Legal and Admin Off | A | Common Stock | 21434 | $0.00 | 92,546.0000 | 286,876,206 | 30.14% | 0.01% |
| March 1, 2026 | Diamondback Energy, Inc. | $FANG | Zmigrosky Matt | EVP, Chief Legal and Admin Off | F | Common Stock | 8450 | $174.08 | 84,096.0000 | 286,876,206 | 9.13% | 0.00% |
| March 1, 2026 | Diamondback Energy, Inc. | $FANG | Zmigrosky Matt | EVP, Chief Legal and Admin Off | F | Common Stock | 739 | $174.08 | 83,357.0000 | 286,876,206 | 0.88% | 0.00% |
| March 1, 2026 | Diamondback Energy, Inc. | $FANG | Zmigrosky Matt | EVP, Chief Legal and Admin Off | F | Common Stock | 970 | $174.08 | 82,387.0000 | 286,876,206 | 1.16% | 0.00% |
| Nov. 14, 2025 | Diamondback Energy, Inc. | $FANG | Zmigrosky Matt | EVP, Chief Legal and Admin Off | S | Common Stock | 3500 | $148.18 | 63,534.0000 | 286,876,206 | 5.22% | 0.00% |
| Sept. 10, 2025 | Diamondback Energy, Inc. | $FANG | Zmigrosky Matt | EVP, Chief Legal and Admin Off | F | Common Stock | 861 | $136.29 | 67,034.0000 | 291,155,000 | 1.27% | 0.00% |
| Aug. 19, 2025 | Viper Energy, Inc. | $VNOM | Zmigrosky Matt | Exec. VP, Gen Counsel and Sec | D | Class A Common Stock | 4253 | $0.00 | 0.0000 | 157,458,390 | 100.00% | 0.00% |
| March 1, 2025 | Diamondback Energy, Inc. | $FANG | Zmigrosky Matt | EVP, Chief Legal and Admin Off | F | Common Stock | 955 | $158.96 | 69,604.0000 | 290,984,373 | 1.35% | 0.00% |
| March 1, 2025 | Diamondback Energy, Inc. | $FANG | Zmigrosky Matt | EVP, Chief Legal and Admin Off | A | Common Stock | 7390 | $0.00 | 56,563.0000 | 290,984,373 | 15.03% | 0.00% |
| March 1, 2025 | Diamondback Energy, Inc. | $FANG | Zmigrosky Matt | EVP, Chief Legal and Admin Off | F | Common Stock | 9074 | $158.96 | 70,559.0000 | 290,984,373 | 11.39% | 0.00% |
| March 1, 2025 | Diamondback Energy, Inc. | $FANG | Zmigrosky Matt | EVP, Chief Legal and Admin Off | A | Common Stock | 23070 | $0.00 | 79,633.0000 | 290,984,373 | 40.79% | 0.01% |
| March 1, 2025 | Diamondback Energy, Inc. | $FANG | Zmigrosky Matt | EVP, Chief Legal and Admin Off | F | Common Stock | 970 | $158.96 | 67,895.0000 | 290,984,373 | 1.41% | 0.00% |
| March 1, 2025 | Diamondback Energy, Inc. | $FANG | Zmigrosky Matt | EVP, Chief Legal and Admin Off | F | Common Stock | 739 | $158.96 | 68,865.0000 | 290,984,373 | 1.06% | 0.00% |
| Sept. 10, 2024 | Diamondback Energy, Inc. | $FANG | Zmigrosky Matt | EVP, Chief Legal and Admin Off | A | Common Stock | 10932 | $0.00 | 49,173.0000 | 178,394,000 | 28.59% | 0.01% |
| May 28, 2024 | Diamondback Energy, Inc. | $FANG | Zmigrosky Matt | EVP, Chief Legal and Admin Off | F | Common Stock | 204 | $193.46 | 38,241.0000 | 178,340,000 | 0.53% | 0.00% |
| May 17, 2024 | Diamondback Energy, Inc. | $FANG | Zmigrosky Matt | EVP, Chief Legal and Admin Off | S | Common Stock | 6000 | $198.15 | 38,445.0000 | 178,340,000 | 13.50% | 0.00% |
| March 21, 2024 | Diamondback Energy, Inc. | $FANG | Zmigrosky Matt | EVP, Chief Legal and Admin Off | S | Common Stock | 5000 | $193.94 | 44,445.0000 | 178,724,000 | 10.11% | 0.00% |
| March 1, 2024 | Diamondback Energy, Inc. | $FANG | Zmigrosky Matt | EVP, Chief Legal and Admin Off | F | Common Stock | 739 | $182.52 | 49,445.0000 | 178,724,000 | 1.47% | 0.00% |
| March 1, 2024 | Diamondback Energy, Inc. | $FANG | Zmigrosky Matt | EVP, Chief Legal and Admin Off | F | Common Stock | 937 | $182.52 | 50,184.0000 | 178,724,000 | 1.83% | 0.00% |
| March 1, 2024 | Diamondback Energy, Inc. | $FANG | Zmigrosky Matt | EVP, Chief Legal and Admin Off | F | Common Stock | 807 | $182.52 | 51,121.0000 | 178,724,000 | 1.55% | 0.00% |
| March 1, 2024 | Diamondback Energy, Inc. | $FANG | Zmigrosky Matt | EVP, Chief Legal and Admin Off | F | Common Stock | 12233 | $182.52 | 51,928.0000 | 178,724,000 | 19.07% | 0.01% |
| March 1, 2024 | Diamondback Energy, Inc. | $FANG | Zmigrosky Matt | EVP, Chief Legal and Admin Off | A | Common Stock | 31050 | $0.00 | 64,161.0000 | 178,724,000 | 93.78% | 0.02% |
| March 1, 2024 | Diamondback Energy, Inc. | $FANG | Zmigrosky Matt | EVP, Chief Legal and Admin Off | A | Common Stock | 5631 | $0.00 | 33,111.0000 | 178,724,000 | 20.49% | 0.00% |
| Sept. 12, 2023 | Diamondback Energy, Inc. | $FANG | Zmigrosky Matt | EVP, Chief Legal and Admin Off | S | Common Stock | 2706 | $157.17 | 27,480.0000 | 179,841,000 | 8.96% | 0.00% |
| Aug. 3, 2023 | Diamondback Energy, Inc. | $FANG | Zmigrosky Matt | EVP, Chief Legal and Admin Off | S | Common Stock | 5812 | $150.16 | 30,186.0000 | 179,841,000 | 16.15% | 0.00% |
| May 28, 2023 | Diamondback Energy, Inc. | $FANG | Zmigrosky Matt | EVP, Chief Legal and Admin Off | F | Common Stock | 204 | $130.99 | 35,998.0000 | 179,841,000 | 0.56% | 0.00% |
| March 1, 2023 | Diamondback Energy, Inc. | $FANG | Zmigrosky Matt | EVP, Chief Legal and Admin Off | A | Common Stock | 7144 | $0.00 | 30,767.0000 | 179,841,000 | 30.24% | 0.00% |
| March 1, 2023 | Diamondback Energy, Inc. | $FANG | Zmigrosky Matt | EVP, Chief Legal and Admin Off | A | Common Stock | 13663 | $0.00 | 44,430.0000 | 179,841,000 | 44.41% | 0.01% |
| March 1, 2023 | Diamondback Energy, Inc. | $FANG | Zmigrosky Matt | EVP, Chief Legal and Admin Off | F | Common Stock | 1087 | $140.58 | 37,948.0000 | 179,841,000 | 2.78% | 0.00% |
| March 1, 2023 | Diamondback Energy, Inc. | $FANG | Zmigrosky Matt | EVP, Chief Legal and Admin Off | F | Common Stock | 5395 | $140.58 | 39,035.0000 | 179,841,000 | 12.14% | 0.00% |
| March 1, 2023 | Diamondback Energy, Inc. | $FANG | Zmigrosky Matt | EVP, Chief Legal and Admin Off | F | Common Stock | 808 | $140.58 | 37,140.0000 | 179,841,000 | 2.13% | 0.00% |
| March 1, 2023 | Diamondback Energy, Inc. | $FANG | Zmigrosky Matt | EVP, Chief Legal and Admin Off | F | Common Stock | 938 | $140.58 | 36,202.0000 | 179,841,000 | 2.53% | 0.00% |