Diamondback Energy, Inc. 4

Exec. VP and Chief Engineer Albert Barkmann had 682 shares of Diamondback Energy common stock withheld for taxes upon RSU vesting, leaving him with 23,889 shares owned directly.

On September 10, 2026, Diamondback Energy, Inc. Exec. VP and Chief Engineer Albert Barkmann had 682 shares of common stock withheld by the company at an implied price of $202.63 per share, totaling approximately $138,000, to satisfy tax withholding obligations upon the vesting and settlement of the second tranche of time-based restricted stock units originally granted on September 10, 2024. This is a routine, non-discretionary withholding event rather than an open-market trade, leaving Barkmann with direct ownership of 23,889 shares of Diamondback common stock after the transaction.

Filing Facts

CIK

1539838

Ticker

FANG

Form

4

Source Type

sec

Accession

0001539838-26-000158

Alert Tier

5