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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">UNITED STATES</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">SECURITIES AND EXCHANGE COMMISSION</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">WASHINGTON, DC&#160; 20549</font></b></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">FORM&nbsp;8-K</font></b></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">CURRENT REPORT PURSUANT</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">TO SECTION&nbsp;13 OR 15(d)&nbsp;OF THE</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">SECURITIES EXCHANGE ACT OF 1934</font></b></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Date of report (Date of earliest event reported): <b>August&nbsp;8, 2013</b></font></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">IRON MOUNTAIN INCORPORATED</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Exact Name of Registrant as Specified in Its Charter)</font></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Delaware</font></b></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">1-13045</font></b></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">23-2588479</font></b></p>    </td>   </tr>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(IRS Employer Identification No.)</font></p>    </td>   </tr>  </table>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">745 Atlantic Avenue<br>   Boston, Massachusetts</font></b></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">02111</font></b></p>    </td>   </tr>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">(617) 535-4766</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Registrant&#146;s Telephone Number,&nbsp;Including Area Code)</font></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Check the appropriate box below if the Form&nbsp;8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:</font></p>
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<p style="margin:0in 0in .0001pt .25in;text-indent:-.25in;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><font size="2" style="font-size:10.0pt;">Written communications pursuant to Rule&nbsp;425 under the Securities Act (17 CFR 230.425)</font></p>
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<p style="margin:0in 0in .0001pt .25in;text-indent:-.25in;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><font size="2" style="font-size:10.0pt;">Soliciting material pursuant to Rule&nbsp;14a-12 under the Exchange Act (17 CFR 240.14a-12)</font></p>
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<p style="margin:0in 0in .0001pt .25in;text-indent:-.25in;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><font size="2" style="font-size:10.0pt;">Pre-commencement communications pursuant to Rule&nbsp;14d-2(b)&nbsp;under the Exchange Act (17 CFR 240.14d-2(b))</font></p>
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<p style="margin:0in 0in .0001pt .25in;text-indent:-.25in;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><font size="2" style="font-size:10.0pt;">Pre-commencement communications pursuant to Rule&nbsp;13e-4(c)&nbsp;under the Exchange Act (17 CFR 240.13e-4(c))</font></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item 8.01.</font></b><b><font size="1" style="font-size:3.0pt;font-weight:bold;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font></b><b><font size="2" style="font-size:10.0pt;font-weight:bold;">Other Events.</font></b></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">On August&nbsp;8, 2013,&nbsp;Iron Mountain Incorporated (the &#147;Company&#148;) and Iron Mountain Canada Operations ULC (the &#147;Canadian Issuer&#148; and together with the Company, the &#147;Issuers&#148;) announced the pricing of an underwritten public offering by the Company of $600.0 million in aggregate principal amount of the Company&#146;s 6% USD Senior Notes due 2023 (the &#147;U.S. Notes&#148; ) and by the Canadian Issuer of C$200.0 million in aggregate principal amount of the Canadian Issuer&#146;s 6</font><font size="1" style="font-size:6.5pt;position:relative;top:-3.0pt;">1</font><font size="2" style="font-size:10.0pt;">/</font><font size="1" style="font-size:6.5pt;position:relative;top:1.0pt;">8</font><font size="2" style="font-size:10.0pt;">% CAD Senior Notes due 2021 (the &#147;Canadian Notes&#148; and together with the U.S. Notes, the &#147;Notes&#148;). The Notes will be sold at 100.0% of par. The aggregate net proceeds to the Issuers from this offering are expected to be approximately $777.2 million, after paying underwriters&#146; discounts and commissions and estimated expenses. The Issuers intend to use a majority of the net proceeds from this offering to redeem all of the Canadian Issuer&#146;s outstanding 7</font><font size="1" style="font-size:6.5pt;position:relative;top:-3.0pt;">1</font><font size="2" style="font-size:10.0pt;">/</font><font size="1" style="font-size:6.5pt;position:relative;top:1.0pt;">2</font><font size="2" style="font-size:10.0pt;">% CAD Senior Subordinated Notes due 2017, all of the Company&#146;s outstanding 8% USD Senior Subordinated Notes due 2018 and all of the Company&#146;s outstanding 8% USD Senior Subordinated Notes due 2020 and to fund the purchase of up to $137.5 million in principal amount of the Company&#146;s 8</font><font size="1" style="font-size:6.5pt;position:relative;top:-3.0pt;">3</font><font size="2" style="font-size:10.0pt;">/</font><font size="1" style="font-size:6.5pt;position:relative;top:1.0pt;">8</font><font size="2" style="font-size:10.0pt;">% USD Senior Subordinated Notes due 2021 pursuant to a tender offer (the &#147;Tender Offer&#148;). The Issuers intend to use the remaining net proceeds to repay indebtedness under the Company&#146;s revolving credit facility and for general corporate purposes.</font></p>
<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">This Current Report on Form&nbsp;8-K shall not constitute an offer to sell or the solicitation of an offer to buy securities, nor shall there be any sale of these securities in any state or other jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction.</font></p>
<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The redemptions of the 7</font><font size="1" style="font-size:6.5pt;position:relative;top:-3.0pt;">1</font><font size="2" style="font-size:10.0pt;">/</font><font size="1" style="font-size:6.5pt;position:relative;top:1.0pt;">2</font><font size="2" style="font-size:10.0pt;">% CAD Senior Subordinated Notes due 2017, the 8% USD Senior Subordinated Notes due 2018 and the 8% USD Senior Subordinated Notes due 2020 will be made only by means of call notices by the trustee to holders in accordance with the terms of the indenture under which such notes were issued. The Tender Offer is being made solely pursuant to an Offer to Purchase and related Letter of Transmittal, which set forth the complete terms of the Tender Offer. This Current Report on Form&nbsp;8-K does not constitute a notice of redemption of such notes subject to redemption, or an offer to buy, or solicitation of an offer to sell, any of the 8</font><font size="1" style="font-size:6.5pt;position:relative;top:-3.0pt;">3</font><font size="2" style="font-size:10.0pt;">/</font><font size="1" style="font-size:6.5pt;position:relative;top:1.0pt;">8</font><font size="2" style="font-size:10.0pt;">% USD Senior Subordinated Notes due 2021 pursuant to the Tender Offer.</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">A copy of the Company&#146;s press release announcing the pricing of the public offering of the Notes is filed as Exhibit&nbsp;99.1 to this Current Report on Form&nbsp;8-K and is incorporated herein by reference.</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item 9.01.</font></b><b><font size="1" style="font-size:3.0pt;font-weight:bold;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font></b><b><font size="2" style="font-size:10.0pt;font-weight:bold;">Financial Statements and Exhibits.</font></b></p>
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<p style="margin:0in 0in .0001pt;"><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;">(d)&nbsp; Exhibits</font></i></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Underwriting Agreement, dated as of August&nbsp;8,   2013, by and among Iron Mountain Incorporated,&nbsp;Iron Mountain Canada   Operations ULC and certain other subsidiaries of Iron Mountain Incorporated   and the underwriters named therein, pertaining to $600,000,000 in aggregate   principal amount of 6% USD Senior Notes due 2023 and C$200,000,000 in   aggregate principal amount of </font><font size="2" style="font-size:10.0pt;">6</font><font size="1" style="font-size:6.5pt;position:relative;top:-3.0pt;">1</font><font size="2" style="font-size:10.0pt;">/</font><font size="1" style="font-size:6.5pt;position:relative;top:1.0pt;">8</font><font size="2" style="font-size:10.0pt;">% CAD   Senior Notes due 2021. (<i>Filed herewith.</i>)</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">5.1</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Opinion of   Sullivan&nbsp;&amp; Worcester LLP. (<i>Filed   herewith.</i>)</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">5.2</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Opinion of   Blake, Cassels&nbsp;&amp; Graydon LLP. (<i>Filed   herewith.</i>)</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">23.1</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Consent of   Sullivan&nbsp;&amp; Worcester LLP (contained in Exhibit&nbsp;5.1).</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">23.2</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Consent of   Blake, Cassels&nbsp;&amp; Graydon LLP (contained in Exhibit&nbsp;5.2).</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">99.1</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Press   Release of Iron Mountain Incorporated, dated August&nbsp;8, 2013. (<i>Filed herewith.</i>)</font></p>    </td>   </tr>  </table>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">2<a name="PB_2_115615_7056"></a></font></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">SIGNATURES</font></b></p>
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<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">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 hereunto duly authorized.</font></p>
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<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">IRON   MOUNTAIN INCORPORATED</font></b></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">By:   </font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/   Ernest W. Cloutier</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Name:   </font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Ernest   W. Cloutier</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Executive   Vice President, General Counsel and Secretary</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Date:&nbsp; August&nbsp;12, 2013</font></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">3<a name="PB_3_115841_5335"></a></font></p>
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{"company-data": {"conformed-name": "IRON MOUNTAIN INC", "cik": "0001020569", "assigned-sic": "4220", "irs-number": "232588479", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "001-13045", "film-number": "131030190"}, "business-address": {"street1": "745 ATLANTIC AVENUE", "city": "BOSTON", "state": "MA", "zip": "02111", "phone": "6175354766"}, "mail-address": {"street1": "745 ATLANTIC AVENUE", "city": "BOSTON", "state": "MA", "zip": "02111"}, "former-company": [{"former-conformed-name": "IRON MOUNTAIN INC/PA", "date-changed": "20000201"}, {"former-conformed-name": "PIERCE LEAHY CORP", "date-changed": "19960807"}]}
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, DC  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):
August 8, 2013
IRON MOUNTAIN INCORPORATED
(Exact Name of Registrant as Specified in Its Charter)
Delaware
(State or Other Jurisdiction of Incorporation)
1-13045
23-2588479
(Commission File Number)
(IRS Employer Identification No.)
745 Atlantic Avenue
Boston, Massachusetts
02111
(Address of Principal Executive Offices)
(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:
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 8.01.
Other Events.
On August 8, 2013, Iron Mountain Incorporated (the "Company") and Iron Mountain Canada Operations ULC (the "Canadian Issuer" and together with the Company, the "Issuers") announced the pricing of an underwritten public offering by the Company of $600.0 million in aggregate principal amount of the Company's 6% USD Senior Notes due 2023 (the "U.S. Notes" ) and by the Canadian Issuer of C$200.0 million in aggregate principal amount of the Canadian Issuer's 6
1
/
8
% CAD Senior Notes due 2021 (the "Canadian Notes" and together with the U.S. Notes, the "Notes"). The Notes will be sold at 100.0% of par. The aggregate net proceeds to the Issuers from this offering are expected to be approximately $777.2 million, after paying underwriters' discounts and commissions and estimated expenses. The Issuers intend to use a majority of the net proceeds from this offering to redeem all of the Canadian Issuer's outstanding 7
1
/
2
% CAD Senior Subordinated Notes due 2017, all of the Company's outstanding 8% USD Senior Subordinated Notes due 2018 and all of the Company's outstanding 8% USD Senior Subordinated Notes due 2020 and to fund the purchase of up to $137.5 million in principal amount of the Company's 8
3
/
8
% USD Senior Subordinated Notes due 2021 pursuant to a tender offer (the "Tender Offer"). The Issuers intend to use the remaining net proceeds to repay indebtedness under the Company's revolving credit facility and for general corporate purposes.
This Current Report on Form 8-K shall not constitute an offer to sell or the solicitation of an offer to buy securities, nor shall there be any sale of these securities in any state or other jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction.
The redemptions of the 7
1
/
2
% CAD Senior Subordinated Notes due 2017, the 8% USD Senior Subordinated Notes due 2018 and the 8% USD Senior Subordinated Notes due 2020 will be made only by means of call notices by the trustee to holders in accordance with the terms of the indenture under which such notes were issued. The Tender Offer is being made solely pursuant to an Offer to Purchase and related Letter of Transmittal, which set forth the complete terms of the Tender Offer. This Current Report on Form 8-K does not constitute a notice of redemption of such notes subject to redemption, or an offer to buy, or solicitation of an offer to sell, any of the 8
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% USD Senior Subordinated Notes due 2021 pursuant to the Tender Offer.
A copy of the Company's press release announcing the pricing of the public offering of the Notes is filed as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.
Item 9.01.
Financial Statements and Exhibits.
(d)  Exhibits
1.1
Underwriting Agreement, dated as of August 8,   2013, by and among Iron Mountain Incorporated, Iron Mountain Canada   Operations ULC and certain other subsidiaries of Iron Mountain Incorporated   and the underwriters named therein, pertaining to $600,000,000 in aggregate   principal amount of 6% USD Senior Notes due 2023 and C$200,000,000 in   aggregate principal amount of
6
1
/
8
% CAD   Senior Notes due 2021. (
Filed herewith.
)
5.1
Opinion of   Sullivan & Worcester LLP. (
Filed   herewith.
)
5.2
Opinion of   Blake, Cassels & Graydon LLP. (
Filed   herewith.
)
23.1
Consent of   Sullivan & Worcester LLP (contained in Exhibit 5.1).
23.2
Consent of   Blake, Cassels & Graydon LLP (contained in Exhibit 5.2).
99.1
Press   Release of Iron Mountain Incorporated, dated August 8, 2013. (
Filed herewith.
)
2
SIGNATURES
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 hereunto duly authorized.
IRON   MOUNTAIN INCORPORATED
By:
/s/   Ernest W. Cloutier
Name:
Ernest   W. Cloutier
Title:
Executive   Vice President, General Counsel and Secretary
Date:  August 12, 2013
3