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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): February 24, 2022
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.)

One Federal Street, Boston, Massachusetts
(Address of Principal Executive Offices)
2110
(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:
☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities Registered Pursuant to Section 12(b) of the Act:

Title of Each Class |  | Trading Symbol(s) |  | Name Of Each Exchange On Which Registered
Common Stock, $.01 par value per share |  | IRM |  | New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).
Emerging growth company ☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐
Item 2.02. Results of Operations and Financial Condition.
On February 24, 2022, Iron Mountain Incorporated, or the Company, issued an earnings press release and supplemental financial information for the quarter and year ended December 31, 2021. In addition, the Company will be using a slide presentation during its earnings conference call. Copies of the earnings press release, slide presentation and supplemental financial information are furnished as Exhibits 99.1, 99.2 and 99.3, respectively, hereto and posted on the Company’s website, www.ironmountain.com, under “Investors.”
Item 9.01. Financial Statements and Exhibits.
(d) Exhibits
99.1 Fourth Quarter and Full Year 2021 Earnings Press Release (Furnished herewith.)
99.2 Fourth Quarter and Full Year 2021 Earnings Conference Call Presentation (Furnished herewith.)
99.3 Fourth Quarter and Full Year 2021 Supplemental Financial Information (Furnished herewith)
101 Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document.
104 The cover page from this Current Report on Form 8-K, formatted as Inline XBRL.

The information in this report, including Exhibits 99.1, 99.2 and 99.3 is furnished in accordance with SEC Release No. 33-8216 and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934 (the “Exchange Act”) or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933 or the Exchange Act, regardless of any general incorporation language in such filing.

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/ Barry Hytinen
Name: | Barry Hytinen
Title: | Executive Vice President and Chief Financial Officer

Date: February 24, 2022