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Diamondback Energy, Inc.

For the period ended Sep 30, 2026. Filed Nov 4, 2026.

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A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Sep 30, 2026 · Filed Nov 4, 2026

FANG$178.08-0.1%Stored close · as of Nov 10, 2026

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Item 5. Other Information

Trading Arrangements

On August 12, 2026, Charles A. Meloy, a member of theboard of directors of the Company, adopted a Rule 10b5-1 trading arrangement intended to satisfy Rule 10b5-1(c), as amended. The plan relates to the sale of up to 150,000 shares of our common stock between December 14, 2026 and May 28, 2027. The shares covered by this plan include shares of common stock currently held by Wolfrock Energy, L.L.C., a Texas limited liability company, of which Mr. Meloy is the sole manager and has voting and dispositive power over the shares of common stock.

None of the Company’s other directors or officers adopted orterminated a Rule 10b5-1 trading arrangement or a non-Rule 10b5-1 trading arrangement during the Company’s fiscal quarter ended September 30, 2026.

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