UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Title of Each ClassTrading Symbol(s)Name of each Exchange on Which Registered Common Stock, $0.01 par value 6.625% Series A Cumulative Redeemable Preferred Stock, $0.01 par value per share "CIO" "CIO.PrA" New York Stock Exchange New York Stock Exchange Emerging growth company ☐ FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2020 OR ☐ ...