X0202 4 2006-12-12 0001020569 IRON MOUNTAIN INC IRM 0001218784 RYAN VINCENT J 745 ATLANTIC AVENUE BOSTON MA 02111 1 0 0 0 Common Stock, par value, $.01 per share 2006-12-12 4 M 0 8288 12.0741 A 4701147 I Shares held as part of the Vincent J. Ryan Revocable Trust, dated 12/24/87 Common Stock, par value, $.01 per share 2006-12-12 4 M 0 6197 16.1389 A 4707344 I Shares held as part of the Vincent J. Ryan Revocable Trust, dated 12/24/87 Common Stock, par value, $.01 per share 16904 I Shares held in the Carla E. Meyer Three-Year Annuity Trust, dated August 4, 2003 ("Meyer 2003 Trust) Common Stock, par value, $.01 per share 25581 I Shares held by a member of Mr. Ryan's household Common Stock, par value, $.01 per share 0 I Shares held in the Carla E. Meyer Revocable Trust, dated December 7, 2001 ("Meyer 2001 Trust") Common Stock, par value, $.01 per share 323220 I Shares held in the Carla E. Meyer 2006 Three-Year Retained Annuity Trust dtd September 13, 2006 Common Stock, par value, $.01 per share 6156171 I Shares held by Schooner Capital Trust ("Schooner Trust") Common Stock, par value, $.01 per share 13500 I Shared held in the name of Citibank, South Dakota, Trustee of the Ryan 1998 Issue Trust Common Stock, par value, $.01 per share 69654 I Shared held by the Schooner Foundation Stock Option (Right to Buy) 12.0741 2006-12-12 4 M 0 8288 12.0741 A 2001-05-28 2008-05-27 Common Stock 8288 0 D Stock Option (Right to Buy) 16.1389 2006-12-12 4 M 0 6197 16.1389 A 2001-05-28 2010-05-31 Common Stock 6197 0 D Mr. Ryan has exercised 8,288 shares of the NQ stock option granted to him on 5/28/98. There are no further shares remaining to the exercised with this option grant. Mr. Ryan has exercised 6,197 shares of the NQ stock option granted to him on 6/1/00. There are no further shares remaining to the exercised with this option grant. On August 4, 2006, the Carla E. Meyer Three-Year Retained Annuity Trust transferred 115,007 shares of Iron Mountain Common Stock to The Carla E. Meyer Revocable Trust, dated December 7, 2001 and 109,876 shares to members of the Ryan family, including 84,520 shares transferred to family members who do not live in the Ryan household. As to the 84,520 shares, Mr. Ryan disclaims beneficial ownership. Of the 109,876 shares of Iron Mountain Common Stock referenced above, 25,356 shares are held by a member of the family who lives within the Ryan household, as to which Mr. Ryan disclaims beneficial ownership. Included in the reported shares of 25,581 are 225 shares as adjusted for the 3-for-2 Stock split effective June 30, 2004 for a total of $6,506 that were inadvertently not reported previously. On September 13, 2006, the Carla E. Meyer Revocable Trust dated December 7, 2001 transferred 323,220 shares of Iron Mountain Common Stock to the Carla E. Meyer 2006 Three-Year Retained Annuity Trust, dated September 13, 2006. Clare A. Dever, under Power of Attorney dated September 3, 2002 from Vincent J. Ryan. 2006-12-14