Form 4 for FANG Diamondback Energy
Accepted 2026-03-03 00:00:00 ET · period of report 2026-03-01 · accession 0001539838-26-000029 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M | 2026-03-03 | 2026-03-01 | FANG | Zmigrosky Matt | EVP, Chief Legal, Admin Off | A - Grant | $0.00 | +29.0K | 92.5K | +46% | $0 |
| M | 2026-03-03 | 2026-03-01 | FANG | Zmigrosky Matt | EVP, Chief Legal, Admin Off | F - Tax | $174.08 | -11.2K | 81.4K | -12% | -$1.94M |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2026-03-01 | A | A | 7,583 | $0.00 | 71,112 | D | — | — | (F1) These securities are restricted stock units, each representing a contingent right to receive one share of common stock, par value $0.01 per share, of the issuer. These restricted stock units were granted under the issuer's equity incentive plan and will vest in three equal installments beginning on March 1, 2026. (F2) The Reporting Person's previous Forms 4 incorrectly overstated the number of shares owned by a de minimis amount. The number of shares beneficially owned by the Reporting Person following the transactions reported herein has been updated accordingly. |
| 2 | Common | Common Stock | 2026-03-01 | A | A | 21,434 | $0.00 | 92,546 | D | — | — | (F3) These securities are performance-based restricted stock units for the performance period from January 1, 2023 to December 31, 2025 that were granted under the issuer's equity incentive plan on March 1, 2023. All of these performance-based restricted stock units vested as of December 31, 2025 following the certification by the issuer's compensation committee of the applicable performance conditions for such performance-based restricted stock unit awards settling on March 1, 2026. |
| 3 | Common | Common Stock | 2026-03-01 | F | D | 8,450 | $174.08 | 84,096 | D | — | — | (F4) The issuer withheld shares of common stock that would have otherwise been issuable to the reporting person to satisfy the issuer's tax withholding obligations in connection with the vesting and settlement of the performance-based restricted stock units granted on March 1, 2023 and vested as of December 31, 2025 following the certification by the issuer's compensation committee of the applicable performance conditions for such performance-based restricted stock unit awards settling on March 1, 2026. The number of shares of common stock withheld was determined based on the closing price per share of the issuer's common stock on February 27, 2025. |
| 4 | Common | Common Stock | 2026-03-01 | F | D | 970 | $174.08 | 82,387 | D | — | — | (F6) The issuer withheld shares of common stock that would have otherwise been issuable to the reporting person to satisfy the issuer's tax withholding obligations in connection with the vesting and settlement on March 1, 2026 of the second tranche of the time-based restricted stock units granted to the reporting person on March 1, 2025. The number of shares of common stock withheld was determined based on the closing price per share of the issuer's common stock on February 27, 2026. |
| 5 | Common | Common Stock | 2026-03-01 | F | D | 739 | $174.08 | 83,357 | D | — | — | (F5) The issuer withheld shares of common stock that would have otherwise been issuable to the reporting person to satisfy the issuer's tax withholding obligations in connection with the vesting and settlement on March 1, 2026 of the third tranche of the time-based restricted stock units granted to the reporting person on March 1, 2024. The number of shares of common stock withheld was determined based on the closing price per share of the issuer's common stock on February 27, 2026. |
| 6 | Common | Common Stock | 2026-03-01 | F | D | 995 | $174.08 | 81,392 | D | — | — | (F7) The issuer withheld shares of common stock that would have otherwise been issuable to the reporting person to satisfy the issuer's tax withholding obligations in connection with the vesting and settlement on March 1, 2026 of the first tranche of the time-based restricted stock units granted to the reporting person on March 1, 2026. The number of shares of common stock withheld was determined based on the closing price per share of the issuer's common stock on February 27, 2026. |