On March 22, 2024, Citigroup Inc announced that on March 19, 2024, the Company commenced distributing to its stockholders a Notice of the 2024 Annual Meeting of Stockholders and Definitive Proxy Statement for the Annual Meeting. This Supplement, which describes a recent change in the stockholder proposals, should be read in conjunction with the Notice and 2024 Proxy Statement. The Company stated that the proponent of Proposal 7 regarding stockholder proposal requesting that the Board amend its Director Election Resignation By-Law has withdrawn the proposal; therefore, Proposal 7 will not be presented or voted upon at the Annual Meeting to be held April 30, 2024.