X0203 3/A 2008-03-07 2008-03-17 0 0001020569 IRON MOUNTAIN INC IRM 0001429848 CLANCY JOHN C/O IRON MOUNTAIN DIGITAL 745 ATLANTIC AVENUE BOSTON MA 02111 0 1 0 0 Pres., Iron Mountain Digital Common Stock, par value, $.01 per share 2253 D This line is being amended to correct an error in the number of shares held by the Reporting Person that was reported in the original Form 3 filed on March 17, 2008. /s/ John Clancy 2009-08-25