Form 4 Filing for Diamondback Energy, Inc.

This filing details a transaction by Matt Zmigrosky, EVP, Chief Legal and Admin Officer of Diamondback Energy, Inc. On September 10, 2026, Mr. Zmigrosky disposed of 861 shares of common stock. This disposal was related to the satisfaction of the issuer's tax withholding obligations upon the vesting of restricted stock units granted on September 10, 2024. The number of shares withheld was determined based on the closing stock price on September 9, 2026. Following this transaction, Mr. Zmigrosky directly owns 38,031 shares of common stock.