Table of Contents Title of Each ClassTrading Symbol(s)Name of each Exchange on Which Registered Common Stock, $0.01 par value "CIO" New York Stock Exchange 6.625% Series A Cumulative Redeemable Preferred Stock, $0.01 par value per share "CIO.PrA" New York Stock Exchange UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 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, 2019 OR ☐ TRANSITI ...