X0306 4 2013-10-17 0 0001020569 IRON MOUNTAIN INC IRM 0001214978 VERRECCHIA ALFRED J C/O IRON MOUNTAIN INCORPORATED 745 ATLANTIC AVENUE BOSTON MA 02111 1 0 0 0 Phantom Stock 2013-10-17 4 A 0 43.52 25.485 A Common Stock 43.52 9134.2315 D Phantom Stock 2013-10-17 4 A 0 3.482 25.4899 A Common Stock 3.482 9137.7135 D Phantom Stock 2013-10-17 4 A 0 0.0835 25.4854 A Common Stock 0.0835 9137.797 D Pursuant to the Reporting Person's election to participate in the Iron Mountain Incorporated Directors Deferred Compensation Plan, the shares of phantom stock will 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. These shares give effect to dividends paid on common stock as if reinvested in phantom stock. /s/ Sarah Cammarata, under Power of Attorney dated September 16, 2010, from Alfred J. Verrecchia 2013-10-21