X0306 4 2020-02-13 0 0001295810 Sunstone Hotel Investors, Inc. SHO 0001541084 Springer Robert C 200 SPECTRUM CENTER DRIVE 21ST FLOOR IRVINE CA 92618 0 1 0 0 Chief Investment Officer Common Stock 2020-02-13 4 A 0 79142 A 343695 D Common Stock 2020-02-17 4 F 0 11322 D 332373 D On February 13, 2020, Sunstone Hotel Investors, Inc. (the "Company") granted 79,142 restricted shares of common stock to the Reporting Person pursuant to its 2004 Long-Term Incentive Plan. Such shares are subject to the satisfaction of vesting requirements over a three-year period. Number of securities rounded to the nearest whole share. On February 17, 2020, 21,505 restricted shares of the Company's common stock (awarded to the Reporting Person on February 17, 2017) vested, and 11,322 shares of the Company's common stock were withheld to satisfy tax withholding obligations. The closing price on February 14, 2020 (as February 17, 2020 fell on a holiday) of the Company's common stock on the New York Stock Exchange was $13.51 per share. /s/ Robert C. Springer 2020-02-18