Sunstone Hotel Investors, Inc. announced that on March 12, 2021, Mr. Keith P. Russell and Mr. Thomas A. Lewis expressed their intention to not stand for re-election to the Board of Directors of the Company at the 2021 Annual Meeting of Stockholders (the 2021 Annual Meeting) of the Company. Their terms will therefore end at the conclusion of the 2021 Annual Meeting. Mr. Russell's retirement comes after 17 years of distinguished service to the Company, having joined the Company's Board in 2004. Mr. Lewis's retirement comes after 15 years of distinguished service to the Company, having joined the Company's Board in 2006. Both Messrs. Russell and Lewis confirmed to the Board that their determination to not stand for re-election is not the result of any disagreement with the Company relating to its operations, policies or practices. On March 15, 2021, the Company announced that the Board intends to nominate Ms. Kristina M. Leslie and Ms. Verett Mims for election as members of the Board at the 2021 Annual Meeting. The Board has not yet determined to which committees of the Board Ms. Leslie and Ms. Mims will be appointed.