X0306 4 2022-03-15 0 0001295810 Sunstone Hotel Investors, Inc. SHO 0001070021 PASQUALE DOUGLAS M 200 SPECTRUM CENTER DRIVE 21ST FLOOR IRVINE CA 92618 1 0 0 1 Executive Chairman Common Stock 2022-03-15 4 F 0 68883 D 290117 I Living Trust On March 15, 2022, 199,291 restricted common shares (awarded to the Reporting Person on September 10, 2021) of Sunstone Hotel Investors, Inc. (the "Company") vested, and 68,883 shares of the Company's common stock were withheld to satisfy tax withholding obligations. The closing price on March 15, 2022 of the Company's common stock on the New York Stock Exchange was $11.33 per share. /s/ Douglas M. Pasquale 2022-03-17