The following discussion and analysis of our financial condition and results of
operations for the three and nine months ended September 30, 2021 should be read
in conjunction with our Condensed Consolidated Financial Statements and Notes
thereto for the three and nine months ended September 30, 2021, included herein,
and our Consolidated Financial Statements and Notes thereto for the year ended
December 31, 2020, included in our Annual Report on Form 10-K filed with the
United States Securities and Exchange Commission ("SEC") on February 24, 2021
(our "Annual Report").
FORWARD-LOOKING STATEMENTS
We have made statements in this Quarterly Report on Form 10-Q (this "Quarterly
Report") that constitute "forward-looking statements" as that term is defined in
the Private Securities Litigation Reform Act of 1995 and other securities laws.
These forward-looking statements concern our operations, economic performance,
financial condition, goals, beliefs, future growth strategies, investment
objectives, plans and current expectations, such as our (1) expectations and
assumptions regarding the impact of the COVID-19 (as defined below) pandemic on
us and our customers, including on our businesses, financial position, results
of operations and cash flows, (2) commitment to future dividend payments, (3)
expected change in volume of records stored with us, (4) expected organic
revenue growth, including 2021 consolidated organic storage rental revenue
growth rate and consolidated organic total revenue growth rate, (5) expectations
that profits will increase in our growth portfolio, including our higher-growth
markets, and that our growth portfolio will become a larger part of our business
over time, (6) expectations related to our revenue management programs and
continuous improvement initiatives, (7) expectations related to monetizing our
owned industrial real estate assets as part of our capital recycling program,
(8) expected ability to identify and complete acquisitions and other
investments, including joint ventures, and drive returns on invested capital,
(9) anticipated capital expenditures, (10) expected benefits, costs and actions
related to, and timing of, Project Summit (as defined below), and (11) other
forward-looking statements related to our business, results of operations and
financial condition. These forward-looking statements are subject to various
known and unknown risks, uncertainties and other factors, and you should not
rely upon them except as statements of our present intentions and of our present
expectations, which may or may not occur. When we use words such as "believes,"
"expects," "anticipates," "estimates", "plans", "intends" or similar
expressions, we are making forward-looking statements. Although we believe that
our forward-looking statements are based on reasonable assumptions, our expected
results may not be achieved, and actual results may differ materially from our
expectations. In addition, important factors that could cause actual results to
differ from expectations include, among others:
•the severity and duration of the COVID-19 pandemic and its effects on the
global economy, including its effects on us, the markets we serve and our
customers and the third parties with whom we do business within those markets;
•our ability to execute on Project Summit and the potential impacts of Project
Summit on our ability to retain and recruit employees;
•our ability to remain qualified for taxation as a real estate investment trust
for United States federal income tax purposes ("REIT");
•changes in customer preferences and demand for our storage and information
management services, including as a result of the shift from paper and tape
storage to alternative technologies that require less physical space;
•our ability or inability to execute our strategic growth plan, including our
ability to invest according to plan, incorporate new digital information
technologies into our offerings, achieve satisfactory returns on new product
offerings, continue our revenue management, expand internationally, complete
acquisitions on satisfactory terms, integrate acquired companies efficiently and
grow our business through joint ventures;
•changes in the amount of our capital expenditures;
•our ability to raise debt or equity capital and changes in the cost of our
debt;
•the costs of complying with, and our ability to comply with, laws, regulations
and customer demands, including those relating to data security and privacy
issues, as well as fire and safety and environmental standards;
•the impact of litigation or disputes that may arise in connection with
incidents in which we fail to protect our customers' information or our internal
records or information technology ("IT") systems and the impact of such
incidents on our reputation and ability to compete;
•changes in the price for our storage and information management services
relative to the cost of providing such storage and information management
services;
•changes in the political and economic environments in the countries in which
our international subsidiaries operate and changes in the global political
climate, particularly as we consolidate operations and move records and data
across borders;
30         IRON MOUNTAIN SEPTEMBER 30, 2021 FORM 10-Q


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•our ability to comply with our existing debt obligations and restrictions in
our debt instruments;
•the impact of service interruptions or equipment damage and the cost of power
on our data center operations;
•the cost or potential liabilities associated with real estate necessary for our
business;
•failures in our adoption of new IT systems;
•unexpected events, including those resulting from climate change, could disrupt
our operations and adversely affect our reputation and results of operations;
•other trends in competitive or economic conditions affecting our financial
condition or results of operations not presently contemplated; and
•the other risks described in our periodic reports filed with the SEC, including
under the caption "Risk Factors" in Part I, Item 1A of our Annual Report.
Except as required by law, we undertake no obligation to update any
forward-looking statements appearing in this report.

IRON MOUNTAIN SEPTEMBER 30, 2021 FORM 10-Q 31

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Part I. Financial Information


OVERVIEW


The following discussions set forth, for the periods indicated, management's
discussion and analysis of financial condition and results of operations.
Significant trends and changes are discussed for the three and nine months ended
September 30, 2021 within each section. Trends and changes that are consistent
for both the three and nine month periods are not repeated and are discussed on
a year to date basis only.
COVID-19
In March 2020, the World Health Organization declared a novel strain of coronavirus
("COVID-19") a pandemic. The preventative and protective actions that governments have
ordered, or we or our customers have implemented, have resulted in a period of reduced
service operations and business disruption for us, our customers and other third parties
with which we do business. While we have broad geographic and customer diversification
with operations in 63 countries and no single customer accounting for a significant
portion of our revenue during the nine months ended September 30, 2021, COVID-19 is a
global pandemic impacting numerous industries and geographies. While our service
operations have increased from the reductions we experienced during the peak of the
COVID-19 pandemic, future service revenues remain uncertain and will be dependent on the
severity of the COVID-19 pandemic, including new variants of COVID-19 that may emerge.


PROJECT SUMMIT

Compelling Adjusted EBITDA Benefits Implementation Details

~$375M                      •Project Summit began in 

Q4 2019 and is expected


            Expected annual run-rate             to be substantially

complete by the end of 2021

benefits realized exiting 2021 •Cost to implement is estimated to be ~$450M




In October 2019, we announced our global program designed to better position us
for future growth and achievement of our strategic objectives ("Project
Summit"). As a result of the program, we expect to reduce the number of
positions at vice president and above by approximately 45%. The total program is
expected to reduce our total managerial and administrative workforce by
approximately 700 positions by the end of 2021. We have also reduced our
services and operations workforce. As of September 30, 2021, we have completed
approximately 95% of our planned workforce reductions.
The activities associated with Project Summit began in the fourth quarter of
2019 and are expected to be substantially complete by the end of 2021. We expect
the total program benefits associated with Project Summit to be fully realized
exiting 2021. We expect that Project Summit will improve annual Adjusted EBITDA
(as defined below) by approximately $375.0 million exiting 2021. We will
continue to evaluate our overall operating model, as well as various
opportunities and initiatives, including those associated with real estate
consolidation, system implementation and process changes, which could result in
the identification and implementation of additional actions associated with
Project Summit and incremental costs and benefits.

Exiting 2021 [[Image Removed: irm-20210930_g4.jpg]] $375 million


                                                           (expected)



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We estimate that the implementation of Project Summit will result in total
operating expenditures ("Restructuring Charges") of approximately $450.0 million
that primarily consist of: (1) employee severance costs; (2) internal costs
associated with the development and implementation of Project Summit
initiatives; (3) professional fees, primarily related to third party consultants
who are assisting with the design and execution of various initiatives as well
as project management activities and (4) system implementation and data
conversion costs. The following table presents total Restructuring Charges
related to Project Summit primarily related to employee severance costs,
internal costs associated with the development and implementation of Project
Summit initiatives and professional fees from the inception of Project Summit
through September 30, 2021, and for the three and nine months ended September
30, 2021:
                                                                                                        TOTAL
From the Inception of Project
Summit through September 30,                            $372,679                                   $372.7 million
2021


For the Three Months Ended September 30, 2021 $50,432 $50.4 million

For the Nine Months Ended September 30, 2021 $129,686 $129.7 million





We have also incurred approximately $6.6 million and $16.6 million in capital
expenditures related to Project Summit during the three and nine months ended
September 30, 2021 and approximately $26.7 million from the inception of Project
Summit through September 30, 2021.
See Note 11 to Notes to Condensed Consolidated Financial Statements included in
this Quarterly Report for more information on the Restructuring Charges.
DIVESTMENTS
On June 7, 2021, as disclosed in Note 4 to Notes to Condensed Consolidated
Financial Statements included in this Quarterly Report, we sold our Intellectual
Property Management ("IPM") business, also known as our technology escrow
services business, which we predominantly operated in the United States, for
total gross consideration of approximately $216.6 million (the "IPM
Divestment"). As described in Note 4 to Notes to Condensed Consolidated
Financial Statements included in this Quarterly Report, the IPM Divestment does
not meet the criteria to be reported as discontinued operations in our condensed
consolidated financial statements. Our IPM business represented approximately
$0.0 million and $14.2 million of total revenues and approximately $0.0 million
and $6.8 million of total net income for the three and nine months ended
September 30, 2021, respectively. Our IPM business represented approximately
$8.2 million and $24.7 million of total revenues and approximately $4.4 million
and $14.1 million of total net income for the three and nine months ended
September 30, 2020, respectively.
CHANGES IMPACTING COMPARABILITY WITH PRIOR YEAR
During the fourth quarter of 2020, we made changes to the definitions of the
following non-GAAP measures: Adjusted EBITDA, Adjusted EPS, FFO (Nareit) and FFO
(Normalized) (each as defined below). These changes were implemented to align
our definitions more closely with our peers. All prior periods have been recast
to conform to these changes.

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GENERAL
RESULTS OF OPERATIONS - KEY TRENDS
•In spite of the COVID-19 pandemic, we have experienced relatively steady volume
in our Global RIM Business segment, with organic storage rental revenue growth
driven primarily by revenue management. We expect organic storage rental revenue
growth to benefit from revenue management and volume, which we expect will be
flat to slightly positive when compared to the prior year. We expect low single
digit organic storage rental revenue growth for the remainder of 2021.
•Our organic service revenue growth is primarily due to increases in our service
activity, particularly in regions where governments have lifted or eased
restrictions on our customers' non-essential business operations. While our
service operations have increased from the reductions we experienced during the
peak of the COVID-19 pandemic, future service revenues remain uncertain and will
be dependent on the severity of the COVID-19 pandemic, including new variants of
COVID-19 that may emerge.
Cost of sales (excluding depreciation and amortization) and Selling, general and
administrative expenses for the nine months ended September 30, 2021 consists of
the following:
COST OF SALES                                                           SELLING, GENERAL AND ADMINISTRATIVE EXPENSES
[[Image Removed: irm-20210930_g5.jpg]]                                  

[[Image Removed: irm-20210930_g6.jpg]]




NON-GAAP MEASURES
ADJUSTED EBITDA
We define Adjusted EBITDA as net income (loss) before interest expense, net,
provision (benefit) for income taxes, depreciation and amortization (inclusive
of our share of Adjusted EBITDA from our unconsolidated joint ventures), and
excluding certain items we do not believe to be indicative of our core operating
results, specifically:
EXCLUDED
•Acquisition and Integration Costs (as defined
below)                                                     •Other (income) expense, net
•Restructuring Charges                                     •Stock-based compensation expense
•Intangible impairments                                    •COVID-19

Costs (as defined below) •(Gain) loss on disposal/write-down of property, plant and equipment, net (including real estate)




Adjusted EBITDA Margin is calculated by dividing Adjusted EBITDA by total
revenues. We also show Adjusted EBITDA and Adjusted EBITDA Margin for each of
our reportable operating segments under "Results of Operations - Segment
Analysis" below.
[[Image Removed: irm-20210930_g7.jpg]]
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Adjusted EBITDA excludes both interest expense, net and the provision (benefit)
for income taxes. These expenses are associated with our capitalization and tax
structures, which we do not consider when evaluating the operating profitability
of our core operations. Adjusted EBITDA does not include depreciation and
amortization expenses, in order to eliminate the impact of capital investments,
which we evaluate by comparing capital expenditures to incremental revenue
generated and as a percentage of total revenues. Adjusted EBITDA and Adjusted
EBITDA Margin should be considered in addition to, but not as a substitute for,
other measures of financial performance reported in accordance with accounting
principles generally accepted in the United States of America ("GAAP"), such as
operating income, net income (loss) or cash flows from operating activities (as
determined in accordance with GAAP).
RECONCILIATION OF NET INCOME (LOSS) TO ADJUSTED EBITDA (IN THOUSANDS):
                                                  THREE MONTHS ENDED SEPTEMBER 30,            NINE MONTHS ENDED SEPTEMBER 30,
                                                      2021                2020                   2021                    2020
Net Income (Loss)                                 $   68,111          $  38,562          $         391,264          $    96,341
Add/(Deduct):
Interest expense, net                                103,809            104,303                    313,451              313,408
Provision (benefit) for income taxes                  28,017             13,934                    153,073               33,304
Depreciation and amortization                        174,818            157,252                    507,145              483,686
Acquisition and Integration Costs(1)                   1,138                  -                      3,415                    -
Restructuring Charges                                 50,432             48,371                    129,686              128,715
Intangible impairments                                     -                  -                          -               23,000

(Gain) loss on disposal/write-down of property, (935) (75,840)

                  (134,321)             (78,170)
plant and equipment, net (including real estate)
Other (income) expense, net, excluding our share
of losses (gains) from our unconsolidated joint      (21,517)            81,190                   (209,001)              59,398

ventures


Stock-based compensation expense(2)                   12,644              8,065                     45,913               32,056
COVID-19 Costs(3)                                          -                  -                          -                9,285
Our share of Adjusted EBITDA reconciling items         1,252                175                      3,340                  450
from our unconsolidated joint ventures
Adjusted EBITDA                                   $  417,769          $ 

376,012 $ 1,203,965 $ 1,101,473




(1) Represent operating expenditures directly associated with the closing and
integration activities of our business acquisitions that have closed, or are
highly probable of closing, and include (i) advisory, legal and professional
fees to complete business acquisitions and (ii) costs to integrate acquired
businesses into our existing operations, including move, severance, facility
upgrade and system integration costs (collectively, "Acquisition and Integration
Costs"). Acquisition and Integration Costs do not include costs associated with
the formation of joint ventures or costs associated with the acquisition of
customer relationships.
(2) Stock-based compensation expense related to Project Summit is included
within Restructuring Charges for the three and nine months ended September 30,
2021 and 2020.
(3) Costs that are incremental and directly attributable to the COVID-19
pandemic which are not expected to recur once the pandemic ends ("COVID-19
Costs"). These costs include the purchase of personal protective equipment for
our employees and incremental cleaning costs of our facilities, among other
direct costs.

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ADJUSTED EPS
We define Adjusted EPS as reported earnings per share fully diluted from net
income (loss) attributable to Iron Mountain Incorporated (inclusive of our share
of adjusted losses (gains) from our unconsolidated joint ventures) and excluding
certain items, specifically:

EXCLUDED


•Acquisition and Integration Costs                                 •Other (income) expense, net
•Restructuring Charges                                             •Stock-based compensation expense
•Intangible impairments                                            •COVID-19 Costs
•(Gain) loss on disposal/write-down of property, plant and         •Tax impact of reconciling items and discrete
equipment, net (including real estate)                             tax 

items





We do not believe these excluded items to be indicative of our ongoing operating
results, and they are not considered when we are forecasting our future results.
We believe Adjusted EPS is of value to our current and potential investors when
comparing our results from past, present and future periods.
RECONCILIATION OF REPORTED EPS-FULLY DILUTED FROM NET INCOME (LOSS) ATTRIBUTABLE
TO IRON MOUNTAIN INCORPORATED TO ADJUSTED EPS-FULLY DILUTED FROM NET INCOME
(LOSS) ATTRIBUTABLE TO IRON MOUNTAIN INCORPORATED:
                                                             THREE MONTHS ENDED                         NINE MONTHS ENDED
                                                               SEPTEMBER 30,                              SEPTEMBER 30,
                                                           2021                 2020                 2021                 2020
Reported EPS-Fully Diluted from Net Income (Loss)
Attributable to Iron Mountain Incorporated          $     0.23               $   0.13          $     1.34              $   0.33

Add/(Deduct):


Acquisition and Integration Costs                            -                      -                0.01                     -
Restructuring Charges                                     0.17                   0.17                0.45                  0.45
Intangible impairments                                       -                      -                   -                  0.08
(Gain) loss on disposal/write-down of property,
plant and equipment, net (including real estate)         (0.01)                 (0.26)              (0.46)                (0.27)

Other (income) expense, net, excluding our share of losses (gains) from our unconsolidated joint ventures

                                                 (0.07)                  0.28               (0.72)                 0.21
Stock-based compensation expense                          0.04                   0.03                0.16                  0.11
COVID-19 Costs                                               -                      -                   -                  0.03
Tax impact of reconciling items and discrete tax
items(1)                                                  0.02                  (0.02)               0.31                 (0.06)
Income (Loss) Attributable to Noncontrolling
Interests                                                    -                      -                0.01                     -
Adjusted EPS-Fully Diluted from Net Income (Loss)
Attributable to Iron Mountain Incorporated(2)       $     0.40               $   0.33          $     1.09              $   0.88


(1)The difference between our effective tax rates and our structural tax rate
(or adjusted effective tax rates) for the three and nine months ended
September 30, 2021 and 2020 is primarily due to (i) the reconciling items above,
which impact our reported net income (loss) before provision (benefit) for
income taxes and (ii) other discrete tax items. Our structural tax rate for
purposes of the calculation of Adjusted EPS for the three and nine months ended
September 30, 2021 and 2020 was 16.5% and 16.3%, respectively.
(2)Columns may not foot due to rounding.

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FFO (NAREIT) AND FFO (NORMALIZED)
Funds from operations ("FFO") is defined by the National Association of Real
Estate Investment Trusts ("Nareit") as net income (loss) excluding depreciation
on real estate assets, losses and gains on sale of real estate, net of tax, and
amortization of data center leased-based intangibles and adjusting for our share
of reconciling items from our unconsolidated joint ventures from FFO ("FFO
(Nareit)"). FFO (Nareit) does not give effect to real estate depreciation
because these amounts are computed, under GAAP, to allocate the cost of a
property over its useful life. Because values for well-maintained real estate
assets have historically increased or decreased based upon prevailing market
conditions, we believe that FFO (Nareit) provides investors with a clearer view
of our operating performance. Our most directly comparable GAAP measure to FFO
(Nareit) is net income (loss).
Although Nareit has published a definition of FFO, we modify FFO (Nareit), as is
common among REITs seeking to provide financial measures that most meaningfully
reflect their particular business ("FFO (Normalized)"). Our definition of FFO
(Normalized) excludes certain items included in FFO (Nareit) that we believe are
not indicative of our core operating results, specifically:

EXCLUDED


•Acquisition and Integration Costs                                •Stock-based compensation expense
•Restructuring Charges                                            •COVID-19 Costs
•Intangible impairments                                           •Real estate financing lease depreciation
•(Gain) loss on disposal/write-down of property, plant and        •Tax impact of reconciling items and discrete tax
equipment, net (excluding real estate)                            items

•Other (income) expense, net





RECONCILIATION OF NET INCOME (LOSS) TO FFO (NAREIT) AND FFO (NORMALIZED) (IN
THOUSANDS):
                                                           THREE MONTHS ENDED                     NINE MONTHS ENDED
                                                              SEPTEMBER 30,                         SEPTEMBER 30,
                                                         2021               2020               2021               2020
Net Income (Loss)                                    $  68,111          $  38,562          $ 391,264          $  96,341
Add/(Deduct):
Real estate depreciation                                79,463             72,019            230,294            224,325
Loss (gain) on sale of real estate, net of tax             748            (75,880)          (106,033)           (77,461)
Data center lease-based intangible assets
amortization                                            10,458             10,441             31,423             32,173

FFO (Nareit)                                           158,780             45,142            546,948            275,378
Add/(Deduct):
Acquisition and Integration Costs                        1,138                  -              3,415                  -
Restructuring Charges                                   50,432             48,371            129,686            128,715
Intangible impairments                                       -                  -                  -             23,000
(Gain) loss on disposal/write-down of property,
plant and equipment, net (excluding real estate)        (1,668)                40             (2,890)              (359)

Other (income) expense, net, excluding our share of losses (gains) from our unconsolidated joint ventures(1)

                                            (21,517)            81,190           (209,001)            59,398
Stock-based compensation expense                        12,644              8,065             45,913             32,056
COVID-19 Costs                                               -                  -                  -              9,285
Real estate financing lease depreciation                 3,740              3,501             10,791             10,095
Tax impact of reconciling items and discrete tax
items(2)                                                 5,304             (4,648)            65,120            (16,464)

Our share of FFO (Normalized) reconciling items from our unconsolidated joint ventures

                          (17)                (1)               (30)               (31)
FFO (Normalized)                                     $ 208,836          $ 181,660          $ 589,952          $ 521,073


(1)Includes foreign currency transaction (gains) losses, net and other, net. See
Note 2.m. to Notes to Condensed Consolidated Financial Statements included in
this Quarterly Report for additional information regarding the components of
Other (income) expense, net.
(2)Represents the tax impact of (i) the reconciling items above, which impact
our reported net income (loss) before provision (benefit) for income taxes and
(ii) other discrete tax items. Discrete tax items resulted in a provision
(benefit) for income taxes of $5.0 million and $19.4 million for the three and
nine months ended September 30, 2021, respectively, and $(3.9) million and
$(2.7) million for the three and nine months ended September 30, 2020,
respectively.

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CRITICAL ACCOUNTING ESTIMATES
Our discussion and analysis of our financial condition and results of operations
are based upon our Condensed Consolidated Financial Statements, which have been
prepared in accordance with GAAP. The preparation of these financial statements
requires us to make estimates, judgments and assumptions that affect the
reported amounts of assets, liabilities, revenues and expenses, and related
disclosure of contingent assets and liabilities at the date of the financial
statements and for the period then ended. On an ongoing basis, we evaluate the
estimates used. We base our estimates on historical experience, actuarial
estimates, current conditions and various other assumptions that we believe to
be reasonable under the circumstances. These estimates form the basis for making
judgments about the carrying values of assets and liabilities and are not
readily apparent from other sources. Actual results may differ from these
estimates. Our critical accounting estimates include the following, which are
listed in no particular order:
•Revenue Recognition
•Accounting for Acquisitions
•Impairment of Tangible and Intangible Assets
•Income Taxes
Further detail regarding our critical accounting estimates can be found in "Item
7. Management's Discussion and Analysis of Financial Condition and Results of
Operations" in our Annual Report, and the Consolidated Financial Statements and
the Notes included therein. We have determined that no material changes
concerning our critical accounting estimates have occurred since December 31,
2020.

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