X0202 4 2007-05-04 0 0001020569 IRON MOUNTAIN INC IRM 0001183336 KENNY JOHN F JR 8 BREWER WAY HINGHAM MA 02043 1 0 0 0 Common Stock, par value, $.01 per share 2007-05-04 4 S 0 400 28.53 D 242991 D Common Stock, par value, $.01 per share 2007-05-04 4 S 0 1600 28.52 D 241391 D Common Stock, par value, $.01 per share 2007-05-04 4 S 0 13100 28.51 D 228291 D Common Stock, par value, $.01 per share 2007-05-04 4 S 0 13700 28.5 D 214591 D Common Stock, par value, $.01 per share 2007-05-04 4 S 0 1000 28.495 D 213591 D Common Stock, par value, $.01 per share 2007-05-04 4 S 0 5400 28.49 D 208191 D Common Stock, par value, $.01 per share 2007-05-04 4 S 0 1992 28.48 D 206199 D Common Stock, par value, $.01 per share 2007-05-04 4 S 0 900 28.47 D 205299 D Common Stock, par value, $.01 per share 2007-05-04 4 S 0 3100 28.46 D 202199 D Common Stock, par value, $.01 per share 2007-05-04 4 S 0 4800 28.45 D 197399 D Common Stock, par value, $.01 per share 2007-05-04 4 S 0 8808 28.44 D 188591 D Common Stock, par value, $.01 per share 2007-05-04 4 S 0 3600 28.43 D 184991 D Common Stock, par value, $.01 per share 2007-05-04 4 S 0 4500 28.42 D 180491 D Common Stock, par value, $.01 per share 2007-05-04 4 S 0 5100 28.41 D 175391 D Common Stock, par value, $.01 per share 2007-05-04 4 S 0 9700 28.4 D 165691 D Common Stock, par value, $.01 per share 2007-05-04 4 S 0 3600 28.39 D 162091 D Common Stock, par value, $.01 per share 2007-05-04 4 S 0 3300 28.38 D 158791 D Common Stock, par value, $.01 per share 2007-05-04 4 S 0 5400 28.37 D 153391 D Common Stock, par value, $.01 per share 36020 I Shares held in the name of wife, son and daughter Mr. Kenny reports the following shares included in beneficial ownership: 33,628 shares held indirectly in the name of his wife, 1,567 shares held indirectly in the name of his minor son and 825 shares are held indirectly in the name of his minor daughter. /s/ John F. Kenny, Jr. 2007-05-08