X0306 4 2013-02-07 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 2013-02-07 4 S 0 150969 34.6485 D 9894177.89 I See Footnote Common Stock, par value $.01 per share 2013-02-08 4 S 0 38355 34.6419 D 9855822.89 I See Footnote Common Stock, par value $.01 per share 28974 D Common Stock, par value $.01 per share 6974957.346 I See Footnote Common Stock, par value $.01 per share 9090 I See Footnote Common Stock, par value $.01 per share 6059 I See Footnote The transactions reported on this Form 4 were effected pursuant to a 10b5-1 trading plan adopted by Schooner Capital Corporation on June 15, 2012. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $34.59 to $34.73, inclusive. The Reporting Person undertakes to provide to Iron Mountain Incorporated, any security holder of Iron Mountain Incorporated, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (2). Shares held by Schooner Capital Corporation. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $34.59 to $34.69, inclusive. The Reporting Person undertakes to provide to Iron Mountain Incorporated, any security holder of Iron Mountain Incorporated, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (4). Shares held in the Vincent J. Ryan Revocable Trust, dated December 24, 1987. Shares held in the Carla E. Meyer Revocable Trust, dated December 7, 2001. 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 2013-02-11