Al Mehwar & ADIC File 13G/A for Vista Energy

This filing reports that Al Mehwar Commercial Investments LLC ("Al Mehwar") and Abu Dhabi Investment Council Company P.J.S.C. ("ADIC") collectively hold 13,270,363 shares of Vista Energy, S.A.B. de C.V. This represents 12.7% of the outstanding Series A Shares, based on 104,256,410 shares reported as of August 27, 2025. Al Mehwar is a wholly owned subsidiary of ADIC. The filing is an amendment (Amendment No. 1) to a previous filing and was made on December 19, 2025, with an event date of December 17, 2025. The reporting persons certify that the securities were not acquired or held for the purpose of changing or influencing the control of the issuer.