HOLDERNESS DARIN G 4

What Happened Darin G. Holderness, a director of Diamondback Energy, was granted 982 restricted stock units (RSUs) on May 20, 2026. The Form 4 records the acquisition as an award (transaction code A) with an acquisition price of $0.00. These RSUs represent a contingent right to receive one share of Diamondback common stock per unit upon vesting.

Key Details

• Transaction date: 2026-05-20; filing date: 2026-05-21 (filed within the typical two-business-day window).
• Shares/units granted: 982 RSUs; acquisition price reported as $0.00 (standard for equity awards).
• Post-transaction ownership: not specified in the provided filing excerpt.
• Footnote: RSUs vest on the earlier of the one-year anniversary of the grant or the date of the 2027 annual meeting of stockholders.
• No 10b5-1 plan, tax-withholding sale, or late-filing indicator reported in the excerpt.

Context RSUs are deferred-equity awards that convert into actual shares only when they vest; the ultimate value depends on Diamondback’s share price at vesting. Grants to non-employee directors are commonly used as routine compensation and do not, by themselves, indicate a buy or sell signal.