Iron Mountain(IRM) - 2021 Q1 - Quarterly Report

(Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q IRON MOUNTAIN INCORPORATED (Exact Name of Registrant as Specified in Its Charter) Delaware 23-2588479 For the Quarterly Period Ended March 31, 2021 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period from to Commission file number 1-13045 (State ...