Iron Mountain Fulfillment Services, Inc. Watch

from S-3ASR 56 pages Iron Mountain Incorporated Subordinated Indenture Dated as of [ ], 20[ ] Wells Fargo Bank, National Association as Trustee

from S-3ASR 65 pages Iron Mountain Incorporated Senior Subordinated Indenture Dated as of [ ], 20[ ] Wells Fargo Bank, National Association, as Trustee

from POSASR 42 pages Iron Mountain Canada Operations Ulc Senior Indenture Dated as of [ ], 20[ ]

from POSASR 38 pages Business Corporations Act Articles of Iron Mountain Canada Operations Ulc

from S-3ASR 43 pages Iron Mountain Incorporated Subordinated Indenture Dated as of [ ], 20[ ] [ ] as Trustee

from S-3ASR 51 pages Iron Mountain Incorporated Senior Subordinated Indenture Dated as of [ ], 20[ ] [ ], as Trustee

from S-3ASR 42 pages Iron Mountain Incorporated Senior Indenture Dated as of [ ], 20[ ]

from S-3ASR 2 pages Iron Mountain Incorporated Under the Laws of the State of Delaware Iron Mountain Incorporated Cusip 462846 10 6 See Reverse for Certain Definitions This Is to Certify That Specimen Is the Owner of Fully Paid and Non-Assessable Shares, $.01 Par Value, of the Common Stock of Iron Mountain Incorporated, Transferable on the Books of the Corporation in Person or by Attorney Upon Surrender of This Certificate Properly Endorsed. This Certificate and the Shares Represented Hereby Are Subject to the Laws of the State of Delaware and to the Articles of Incorporation and the By-Laws of the Corporation as From Time to Time Amended. This Certificate Is Not Valid Until Countersigned and Registered by the Transfer Agent and Registrar. in Witness Whereof, the Corporation Has Caused Its Facsimile Corporate Seal and the Facsimile Signatures of Its Duly Authorized Officers to Be Hereunto Affixed. Dated IRM 5109 Secretary Iron Mountain Incorporated Corporate Seal 2002 Delaware Chief Executive Officer Authorized Signature American Bank Note Company. Transfer Agent and Registrar Certificate of Stock

from S-3ASR 55 pages Iron Mountain Incorporated Subordinated Indenture Dated as of [ ], 20[ ] [ ] as Trustee

from S-3ASR 63 pages Iron Mountain Incorporated Senior Subordinated Indenture Dated as of [ ], 20[ ] [ ], as Trustee

from S-3ASR 53 pages Iron Mountain Incorporated Senior Indenture Dated as of [ ], 20[ ]

from S-3/A ~50 pages Indenture or similar

from S-3/A >50 pages Indenture or similar

from S-3/A ~50 pages Indenture or similar

from S-3 ~20 pages Indenture or similar

from S-3 1 page Indenture or similar

from S-3 >50 pages Indenture or similar

from S-3 ~5 pages Indenture or similar

from S-3/A ~50 pages Indenture or similar

from S-3/A ~50 pages Indenture or similar