X0508 4 2026-01-26 0001295810 Sunstone Hotel Investors, Inc. SHO 0001541084 Springer Robert C 15 ENTERPRISE SUITE 200 ALISO VIEJO CA 92656 false true false false PRESIDENT AND CIO 0 Common Stock 2026-01-26 4 A 0 111302 0 A 698005 D Common Stock 2026-01-26 4 F 0 60791 9.03 D 637214 D Represents the shares of common stock issued upon the vesting of performance restricted stock units ("Performance RSUs") in connection with the achievement of certain performance criteria as certified by the Compensation Committee. Such Performance RSUs were granted to the Reporting Person on February 9, 2023 pursuant to the Sunstone Hotel Investors, Inc. and Sunstone Hotel Partnership, LLC 2022 Incentive Award Plan. /s/ Robert C. Springer 2026-01-28