ANTERO RESOURCES Corp

On May 5, 2026, Michael N. Kennedy, our Chief Executive Officer and President and a Director, terminated the Rule 10b5-1 trading arrangement, dated as of November 6, 2025, for the sale of up to 200,000 shares of the Company’s common stock, of which 185,826 shares had been sold prior to the termination.

On July 28, 2026 (the “First Amendment Effective Date”), we entered an amendment to our Credit Facility (the “Credit Facility Amendment”), pursuant to which the Maturity Date was extended to July 30, 2031 and the 0.10% credit adjustment spread on SOFR was removed. We may request two more one-year extensions of the Maturity Date after the First Amendment Effective Date, subject to satisfaction of certain conditions and consent of the extending lenders. A description of the Credit Facility Amendment is included in Note 7—Debt to the unaudited condensed consolidated financial statements and is incorporated into this Item 5. The description of the Credit Facility Amendment is a summary and is qualified in its entirety by the terms of the Credit Facility Amendment. A copy of the Credit Facility Amendment is filed as Exhibit 10.3 hereto, and is incorporated herein by reference.