X0206 3 2013-10-30 0 0001020569 IRON MOUNTAIN INC IRM 0001590872 Tsolakis Anastasios C/O IRON MOUNTAIN INCORPORATED 745 ATLANTIC AVENUE BOSTON MA 02111 0 1 0 0 EVP, CIO, Global Svcs. Officer Common Stock, par value $.01 per share 25782 D Performance Units Common Stock 5624 D Performance Units Common Stock 10212 D Restricted Stock Units 2014-09-15 2014-09-15 Common Stock 8010 D Restricted Stock Units 2014-03-11 2014-03-11 Common Stock 850 D Restricted Stock Units Common Stock 5064 D Restricted Stock Units Common Stock 7621 D Restricted Stock Units Common Stock 6896 D Employee Stock Option (Right to Buy) 18.3741 2020-09-15 Common Stock 56071 D Employee Stock Option (Right to Buy) 25.0925 2014-03-11 2021-03-11 Common Stock 6687 D The performance units ("PUs") will fully vest on March 11, 2014, subject to certain exceptions, if the Reporting Person is, as of that date, continuing to perform services for Iron Mountain Incorporated. Each PU represents a contingent right to receive one share of Iron Mountain Incorporated common stock ("Common Stock"). The PUs will fully vest on March 9, 2015, subject to certain exceptions, if the Reporting Person is, as of that date, continuing to perform services for Iron Mountain Incorporated. Each restricted stock unit ("RSU") represents a contingent right to receive one share of Common Stock. The RSUs vest in two substantially equal installments on September 8, 2014 and September 8, 2015. The RSUs vest in two substantially equal installments on March 9, 2014 and March 9, 2015. The RSUs were granted to the Reporting Person on March 15, 2013 and vest in three substantially equal annual installments beginning on the first anniversary of the grant date. 30,755 shares of this option have vested. The remaining shares vest on September 15, 2014. /s/ Sarah Cammarata, under Power of Attorney dated November 1, 2013, from Anastasios Tsolakis 2013-11-12