X0306 4 2013-06-14 0 0001020569 IRON MOUNTAIN INC IRM 0001218784 RYAN VINCENT J C/O SCHOONER CAPITAL 745 ATLANTIC AVENUE BOSTON MA 02111 1 0 0 0 Common Stock, par value $.01 per share 2013-06-14 5 G 0 E 9090 0 D 0 I See Footnote Common Stock, par value $.01 per share 2013-06-14 5 G 0 E 9090 0 A 6984047.346 I See Footnote Common Stock, par value $.01 per share 8638933.89 I See Footnote Common Stock, par value $.01 per share 28974 D Common Stock, par value $.01 per share 6059 I See Footnote The shares were transferred by the Carla E. Meyer Revocable Trust, dated December 7, 2001 to the Vincent J. Ryan Revocable Trust, dated December 24, 1987. Shares held in the Carla E. Meyer Revocable Trust, dated December 7, 2001. As a result of the transfer described in footnote (1), the Carla E. Meyer Revocable Trust, dated December 7, 2001 holds no shares of Iron Mountain Incorporated common stock. Shares held in the Vincent J. Ryan Revocable Trust, dated December 24, 1987. Shares held by Schooner Capital Corporation. Shares held in the Carla E. Meyer Three-Year Retained Annuity Trust, dated October 29, 2008. /s/ Sarah Cammarata, under Power of Attorney dated September 16, 2010 from Vincent J. Ryan 2013-06-18