1、Table of ContentsUNITED STATESSECURITIES AND EXCHANGE COMMISSIONWashington,D.C.20549FORM 10-K ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d)OF THE SECURITIES EXCHANGE ACT OF 1934For the fiscal year ended December 31,2021OR TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d)OF THE SECURITIES EXCHANGE AC
2、T OF 1934For the transition period from to Commission file number 001-32319Sunstone Hotel Investors,Inc.(Exact Name of Registrant as Specified in Its Charter)Maryland20-1296886(State or Other Jurisdiction of(I.R.S.EmployerIncorporation or Organization)Identification Number)200 Spectrum Center Drive,
3、21st FloorIrvine,California92618(Address of Principal Executive Offices)(Zip Code)Registrants telephone number,including area code:(949)330-4000Securities registered pursuant to Section 12(b)of the Act:Title of Each ClassTrading Symbol(s)Name of Each Exchange on Which RegisteredCommon Stock,$0.01 pa
4、r valueSHONew York Stock ExchangeSeries H Cumulative Redeemable Preferred Stock,$0.01 par valueSHO.PRHNew York Stock ExchangeSeries I Cumulative Redeemable Preferred Stock,$0.01 par valueSHO.PRINew York Stock ExchangeSecurities registered pursuant to Section 12(g)of the Act:NoneIndicate by check mar
5、k if the registrant is a well-known seasoned issuer,as defined in Rule 405 of the Securities Act.Yes No Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d)of the Act.Yes No Indicate by check mark whether the registrant(1)has filed all repo
6、rts required to be filed by Section 13 or 15(d)of the Securities Exchange Act of 1934 during thepreceding 12 months(or for such shorter period that the registrant was required to file such reports),and(2)has been subject to such filing requirements for the past 90 days.Yes No Indicate by check mark