UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 20-F ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 Commission File Number: 001-34429 PAMPA ENERGÍA S.A. (Exact name of registrant as specified in its charter) Pampa Energy Inc. (Translation of registrant’s name into English) Argentina (Jurisdiction of incorporation or organization) Maipú 1 C1084ABA, City of Buenos Aires Argentina (Address of principal ...