The Board of Directors of Iron Mountain Incorporated declared a cash dividend of USD 0.5875 per share on its NYSE listed common stock and ASX Chess Depository Interests (CDIs) on October 24, 2017 for the fourth quarter of 2017. The record date was the close of business on December 15, 2017. Payable date is January 2, 2018 for NYSE listed common stock and January 16, 2018 for ASX Chess Depository Interests.