X0306 4 2013-04-11 0 0001020569 IRON MOUNTAIN INC IRM 0001218784 RYAN VINCENT J C/O SCHOONER CAPITAL 745 ATLANTIC AVENUE BOSTON MA 02111 1 0 0 0 Phantom Stock 2013-04-11 4 A 0 575.2772 37.1313 A Common Stock 575.2772 20683.3918 D Pursuant to the Reporting Person's election to participate in the Iron Mountain Incorporated Directors Deferred Compensation Plan, the shares of phantom stock become payable in shares of Iron Mountain Incorporated common stock following the Reporting Person's disability or cessation of service as a director. Each share of phantom stock is the economic equivalent of one share of common stock. /s/ Sarah Cammarata, under Power of Attorney dated September 16, 2010 from Vincent J. Ryan 2013-04-15