<div><div></div><div><span><p><span>Matt Zmigrosky, an officer serving as EVP, Chief Legal and Admin Off, sold 5,000 shares of common stock at $210.00 per share on 2026-06-03 for a total of $1,050,000 and following the reported sale directly owned 41,392 shares of common stock.</span></p><p><span>Matthew Kaes Van'T Hof, a Director and Chief Executive Officer, sold common stock in two transactions on 2026-06-03 for 5,000 shares at $205.00 and 10,000 shares at $210.00, representing a weighted average price of $208.33 per share for a total reported sale amount of $3,125,000 and following the reported transactions directly owned 133,614 shares of common stock.</span></p><div><table><thead><tr><th><span>Reporter Name</span></th><th><span>Relationship</span></th><th><span>Type</span></th><th><span>Amount</span></th><th><span>SEC Filing</span></th></tr></thead><tbody><tr><td><span>Zmigrosky Matt</span></td><td><span>EVP, Chief Legal and Admin Off</span></td><td><span>Sell</span></td><td><span>$1,050,000</span></td><td>Form 4</td></tr><tr><td><span>Van'T Hof Matthew Kaes</span></td><td><span>Chief Executive Officer</span></td><td><span>Sell</span></td><td><span>$3,125,000</span></td><td>Form 4</td></tr></tbody></table></div><section><b><span class="heading-JaE7wgR2">Disclaimer</span></b><div><span>This is an AI-powered summary. It may contain inaccuracies. Consider verifying important information with the source. Please note this summary is solely based on documents filed with the SEC.</span></div></section></span></div></div>

FANG

<p>Diamondback Energy insiders sold shares worth over $4.2 million on June 3, 2026. EVP Matt Zmigrosky sold 5,000 shares for $1.05 million, while CEO Matthew Kaes Van'T Hof sold 15,000 shares for $3.125 million. Both executives filed Form 4 with the SEC to report these transactions.</p>

Diamondback Insiders Sold Shares Worth Over $4.2M