UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of

The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): June 16, 2011

IRON MOUNTAIN INCORPORATED

(Exact name of registrant as specified in its charter)

Delaware

(State or other jurisdiction of incorporation)

745 Atlantic Avenue
Boston, Massachusetts 02111
(Address of principal executive offices, including zip code)

(617) 535-4766
(Registrant’s telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2.):

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 5.07.  Submission of Matters to a Vote of Security Holders.

At the Annual Meeting of Stockholders of Iron Mountain Incorporated (the “Company”) held on June 10, 2011 (the “Annual Meeting”), the Company’s stockholders elected eleven directors, each for a one-year term of office to serve until the Company’s 2012 Annual Meeting of Stockholders, or until their successors are elected and qualified.  The nominated directors received the following votes:

The Company’s stockholders approved a nonbinding advisory resolution on the compensation paid to the Company’s named executive officers as disclosed pursuant to Item 402 of Regulation S-K in the Company’s proxy statement dated May 2, 2011 relating to the Annual Meeting.  This proposal received the following votes:

The Company’s stockholders voted to recommend, by nonbinding advisory vote, the frequency with which the Company has a nonbinding advisory vote on the compensation paid to the Company’s named executive officers.  This proposal received the following votes:

In accordance with the Company’s consideration of the voting results on this nonbinding advisory proposal, the Company’s Board of Directors has determined that the Company will hold a nonbinding advisory vote on the compensation of its named executive officers every 1 year.

The Company’s stockholders ratified the appointment of Deloitte & Touche LLP as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2011.  This proposal received the following votes:

The results reported above are final voting results.

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Signature

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

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