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Table of Contents ( Mark One ) ANNUAL REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31 , 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON , D.C. 20549 FORM 10 - K For the transition period from Maryland ( State or other jurisdiction of incorporation or organization ) Large accelerated filter Non - accelerated filter Title of Each Class Common Stock , $ 0.01 par value 6.625 % Series A Cumulative Redeemable Preferred Stock , $ 0.01 par value per share CITY OFFICE REIT , INC . 0 ☐ to Commission file no : 001-36409 666 Burrard Street Suite 3210 Vancouver , BC V6C 2X8 ( Address of principal executive offices ) ( Zip Code ) Registrant's telephone number , including area code : ( 604 ) 806-3366 Securities registered pursuant to Section 12 ( b ) of the Act : Trading Symbol ( s ) " CIO " " CIO.PrA " 98-1141883 ( IRS Employer Identification No. ) Securities registered pursuant to Section 12 ( g ) of the Act : None No 风 Indicate by check mark if the registrant is a well - known seasoned issuer , as defined in Rule 405 of the Securities Act . Yes 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 reports required to be filed by Section 13 or 15 ( d ) of the Securities Exchange Act of 1934 during the preceding 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 □ Name of each Exchange on Which Registered New York Stock Exchange New York Stock Exchange Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S - T ( § 232.405 of this chapter ) during the preceding 12 months ( or for such shorter period that the registrant was required to submit such files ) . Yes > No Indicate by check mark whether the registrant is a large accelerated filer , an accelerated filer , a non - accelerated filer , a smaller reporting company , or an emerging growth company . See the definitions of " large accelerated filer " , " accelerated filer " , " smaller reporting company " and " emerging growth company " in Rule 12b - 2 of the Exchange Act . Accelerated filter Smaller reporting company Emerging Growth Company If an emerging growth company , indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13 ( a ) of the Exchange Act . 0 0 0 Indicate by check mark whether the registrant has filed a report on and attestation to its management's assessment of the effectiveness of its internal control over financial reporting under Section 404 ( b ) of the Sarbanes - Oxley Act ( 15 U.S.C. 7262 ( b ) ) by the registered public accounting firm that prepared or issued its audit report . Indicate by check mark whether the registrant is a shell company ( as defined in Rule 12b - 2 of the Act ) . Yes No 区 As of June 30 , 2020 , the last business day of the registrant's most recently completed second fiscal quarter , the aggregate market value of the registrant's common stock held by non - affiliates of the registrant was approximately $ 427.6 million , based on the closing sales price of $ 10.06 per share as reported on the New York Stock Exchange . As of February 19 , 2021 , the registrant had 43,397,117 shares of common stock outstanding . Documents incorporated by reference : Portions of the registrant's Definitive Proxy Statement for the 2021 Annual Meeting of Shareholders ( to be filed with the United State Securities and Exchange Commission later than 120 days after the end of the registrant's fiscal year end ) are incorporated by reference in this Annual Report on Form 10 - K in response to Part II , Item 5 and Part III , Items 10 , 11 , 12 , 13 and 14 .