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Iron Mountain

irm · NYSE Real Estate
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FY2020 Annual Report · Iron Mountain
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2020 Annual Financial Report

Table of Contents

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 10-K 

(Mark One)
☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the Fiscal Year Ended December 31, 2020
or
☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from                                  to

Commission File Number 1-13045 
_________________________________________________________

IRON MOUNTAIN INCORPORATED
(Exact name of Registrant as Specified in Its Charter)

Delaware 
(State or other jurisdiction of incorporation)

One Federal Street, Boston, Massachusetts 
(Address of principal executive offices)

23-2588479 
(I.R.S. Employer Identification No.)

02110 
(Zip Code)

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

Securities registered pursuant to Section 12(b) of the Act:

Title of Each Class

Trading Symbols(s)

Name of Exchange on Which Registered

Common Stock, $.01 par value per share  

IRM

New York Stock Exchange

Securities registered pursuant to Section 12(g) of the Act: None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes ☒    No ☐
Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes ☐    No ☒
Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 
1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing 
requirements for the past 90 days. Yes ☒    No ☐

Indicate by check mark whether the registrant has submitted electronically, every Interactive Data File required to be submitted pursuant to Rule 405 of 

Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ☒    No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an 
emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer”, “smaller reporting company” and “emerging growth company” 
in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer
Non-accelerated filer
Emerging growth company

☒
☐
☐

Accelerated filer
Smaller reporting company

☐
☐

Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal 
control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared 
or issued its audit report .Yes ☒    No ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐    No ☒
As of June 30, 2020, the aggregate market value of the Common Stock of the registrant held by non-affiliates of the registrant was approximately $7.4 

billion based on the closing price on the New York Stock Exchange on such date.

Number of shares of the registrant’s Common Stock at February 19, 2021: 288,421,215

DOCUMENTS INCORPORATED BY REFERENCE

Certain information required in Items 10, 11, 12, 13 and 14 of Part III of this Annual Report on Form 10-K (the “Annual Report”) is incorporated by 
reference from our definitive Proxy Statement for our 2021 Annual Meeting of Stockholders (our “Proxy Statement”) to be filed with the Securities and 
Exchange Commission (the “SEC”) within 120 days after the close of the fiscal year ended December 31, 2020.

 
Table of Contents

IRON MOUNTAIN INCORPORATED
2020 FORM 10-K ANNUAL REPORT

TABLE OF CONTENTS

PART I

PART II

01

08

20

20

23

23

25

25

25

57

58

58

58

61

ITEM 1.

BUSINESS

ITEM 1A. RISK FACTORS

ITEM 1B. UNRESOLVED STAFF COMMENTS

ITEM 2.

PROPERTIES

ITEM 3.

LEGAL PROCEEDINGS

ITEM 4. MINE SAFETY DISCLOSURES

ITEM 5. MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER 

ITEM 6.

MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES
[RESERVED.]

ITEM 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND 

RESULTS OF OPERATIONS

ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

ITEM 8.

FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND 

FINANCIAL DISCLOSURE

ITEM 9A. CONTROLS AND PROCEDURES

ITEM 9B. OTHER INFORMATION

PART III 63

63

ITEM 10. DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE

ITEM 11. EXECUTIVE COMPENSATION

63

63

63

ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT 

AND RELATED STOCKHOLDER MATTERS

ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR 

INDEPENDENCE

ITEM 14. PRINCIPAL ACCOUNTANT FEES AND SERVICES

PART IV 65

138

ITEM 15. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES

ITEM 16. FORM 10-K SUMMARY

 
 
 
 
 
 
 
 
 
Table of Contents

References in this Annual Report on Form 10-K for the year ended December 31, 2020 (this "Annual Report") to “the Company,” 
“Iron Mountain,” “we,” “us” or “our” include Iron Mountain Incorporated, a Delaware corporation, and its predecessor, as applicable, 
and its consolidated subsidiaries, unless the context indicates otherwise.

CAUTIONARY NOTE REGARDING FORWARD-
LOOKING STATEMENTS

We have made statements in this Annual 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 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 cost 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;

• our ability to comply with our existing debt obligations and restrictions in our debt instruments;
•
•
•
• other trends in competitive or economic conditions affecting our financial condition or results of operations not presently 

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; 

•

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 
this Annual Report.

Except as required by law, we undertake no obligation to update any forward-looking statements appearing in this report.

Table of Contents

Table of Contents

PART I

ITEM 1. BUSINESS. 

BUSINESS OVERVIEW

We help organizations around the world protect their information, reduce storage costs, comply with regulations, facilitate corporate 
disaster recovery, and better use their information and IT infrastructure for business advantages, regardless of its format, location 
or life cycle stage. We do this by storing physical records and data backup media, offering information management solutions, and 
providing data center space for enterprise-class colocation and hyperscale deployments. We offer comprehensive records and 
information management services and data management services, along with the expertise and experience to address complex 
storage and information management challenges such as rising storage rental costs, legal and regulatory compliance, and disaster 
recovery requirements. We provide secure and reliable data center facilities to protect digital information and ensure the continued 
operation of our customers’ IT infrastructure, with reliable and flexible deployment options.

Founded in an underground facility near Hudson, New York in 1951, Iron Mountain Incorporated, a Delaware corporation, has 
approximately 225,000 customers in a variety of industries in 56 countries around the world, as of December 31, 2020. We 
currently serve customers across an array of market verticals - commercial, legal, financial, healthcare, insurance, life sciences, 
energy, business services, entertainment and government organizations, including approximately 96% of the Fortune 1000. As of 
December 31, 2020, we employed approximately 24,000 people. We are listed on the New York Stock Exchange (the “NYSE”) and 
are a constituent of the Standard & Poor’s 500 Index and the MSCI REIT index. As of December 31, 2020, we were number 619 on 
the Fortune 1000.

We have been organized and have operated as a REIT beginning with our taxable year ended December 31, 2014.

BUSINESS STRATEGY

OVERVIEW

Our company has been a market leader in the physical ecosystem supporting information storage and retrieval, as most 
businesses have relied on paper documents or computer tapes to store their valuable information. Over time, customers are 
increasing their digital information, with the new information storage ecosystem being a hybrid of physical and digital mediums. We 
are a different company than the one we have been historically. The strategic journey we are on is driving this change and our 
focus remains on three pillars outlined below to grow our business.

Continued growth in physical storage 
through revenue management as well 
as volume growth achieved in faster 
growing emerging markets and 
consumer and adjacent business 
growth in developed markets

• We are establishing and enhancing leadership positions in higher-growth 

markets such as central and eastern Europe, Latin America, Asia and Africa, 
through both organic expansion and acquisitions in countries where GDP growth 
is faster and outsourcing information management is at an earlier stage.

• We continue to identify, acquire, incubate and scale complementary businesses 
and products to support our long-term growth objectives and drive solid returns 
on invested capital. These opportunities include our digital services and our 
Entertainment Services, Fine Arts and Consumer Storage (each as defined 
below) businesses.

Utilizing our global scale as well as 70 
years of customer trust to deliver 
differentiated data center offerings

• We have made significant progress in scaling our Global Data Center Business 
through acquisitions and organic growth, with 15 operating data centers across 
13 global markets. 

• As of December 31, 2020, approximately 87% of our data center capacity was 
leased. With total potential capacity of 376 megawatts ("MW") in land and 
buildings currently owned or operated by us, we are among the largest global 
data center operators.

Developing and offering new products 
and services that allow our customers 
to achieve reliable and secure 
information management solutions in 
an increasingly hybrid physical and 
digital world

• Our customers are faced with navigating a more complex regulatory 

environment, and one in which hybrid physical and digital solutions have 
become the norm. Our strategy is underpinned by our persistent focus on best-
in-class customer experience, as we continue to seek innovative solutions to 
help our customers progress on their journey from physical storage to a digital 
ecosystem.

IRON MOUNTAIN 2020 FORM 10-K

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Part I

PROJECT SUMMIT

In October 2019, we announced our global program ("Project Summit") designed to better position us for future growth and 
achievement of our strategic objectives. We expanded Project Summit during the first quarter of 2020 to include additional 
opportunities to streamline our business and operations, as well as accelerated the timing of certain opportunities previously 
identified. Such opportunities include leveraging new technology solutions to enable us to modernize our service delivery model 
and more efficiently utilize our fleet, labor and real estate. For further details on Project Summit, see the "Overview" section of “Item 
7. Management’s Discussion and Analysis of Financial Condition and Results of Operations” in this Annual Report.

DESIGNED TO ACCELERATE EXECUTION OF STRATEGY AND CONTINUE GROWTH

Simplifying Global Structure

Compelling Adjusted EBITDA Benefits

• Combining Records and Information ("RIM") operations 

under one global leader

• Rebalancing resources to sharpen focus on higher growth 

areas

~$375M
Expected annual run-rate 
benefits realized exiting 2021

$165M
Benefits delivered
in 2020

Streamlining Management Structure for the Future

Enhancing Customer Experience

• Condensing number of layers and reporting levels

• Reducing number of positions at Vice President level and 

above by ~45%

• Reducing total managerial and administrative workforce by 

700 positions

• Realignment to create a more dynamic, agile organization 
better positioned to make faster decisions and execute 
strategy in key growth areas

• Aligning global and regional customer-facing resources 

across RIM product lines to provide customers with a more 
integrated experience

• Leveraging technology to modernize processes for better 
alignment between new digital solutions and our core 
business

• Providing customers with a consistent experience across 

global footprint and introducing new ways of engaging with 
customers

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IRON MOUNTAIN 2020 FORM 10-K

Table of Contents

BUSINESS SEGMENTS

Part I

The amount of revenues derived from our business segments and other relevant data, including financial information about 
geographic areas and product and service lines, for the years ended December 31, 2020, 2019 and 2018, are set forth in Note 10 
to Notes to Consolidated Financial Statements included in this Annual Report.

GLOBAL RIM BUSINESS

The Global RIM Business segment includes five distinct offerings. 

Records Management, stores physical records and provides healthcare information services, vital records services, courier 
operations, and the collection, handling and disposal of sensitive documents (collectively, “Records Management”) for customers in 
56 countries around the globe. As of December 31, 2020, we stored approximately 710 million cubic feet of hardcopy records.

Data Management, provides storage and rotation of backup computer media as part of corporate disaster recovery plans, including 
service and courier operations (“Data Protection & Recovery”); server and computer backup services; and related services 
offerings, (collectively, “Data Management”).

Global Digital Solutions (“GDS”), develops, implements and supports comprehensive storage and information management 
solutions for the complete lifecycle of our customers’ information, including the management of physical records, conversion of 
documents to digital formats and digital storage of information, primarily in the United States and Canada.

Secure Shredding, includes the scheduled pick-up of office records that customers accumulate in specially designed secure 
containers we provide and is a natural extension of our hardcopy records management operations, completing the lifecycle of a 
record. Complementary to our shredding operations is the sale of the resultant waste paper to third-party recyclers. Through a 
combination of shredding facilities and mobile shredding units consisting of custom built trucks, we are able to offer secure 
shredding services to our customers throughout the United States, Canada and South Africa.

Consumer Storage, provides on-demand, valet storage for consumers (“Consumer Storage”) across 31 markets in North America 
through a strategic partnership (the “MakeSpace JV”) with MakeSpace Labs, Inc., a consumer storage provider (“MakeSpace”), 
formed in March 2019. The MakeSpace JV utilizes data analytics and machine learning to provide effective customer acquisition 
and a convenient and seamless consumer storage experience.

GLOBAL DATA CENTER BUSINESS

The Global Data Center Business segment provides enterprise-class data center facilities and hyperscale-ready capacity to protect 
mission-critical assets and ensure the continued operation of our customers’ IT infrastructure, with secure, reliable and flexible data 
center options. The world’s most heavily regulated organizations have trusted us with their data centers for over 15 years, and as of 
December 31, 2020, five of the top 10 global cloud providers were Iron Mountain Data Center customers.

As of December 31, 2020, our Global Data Center Business footprint spans nine markets in the United States: Denver, Colorado; 
Kansas City, Missouri; Boston, Massachusetts; Boyers, Pennsylvania; Manassas, Virginia; Edison, New Jersey; Columbus, Ohio; 
and Phoenix and Scottsdale, Arizona and four international markets: Amsterdam, London, Singapore and, through an 
unconsolidated joint venture, Frankfurt.

CORPORATE AND OTHER BUSINESS

The Corporate and Other Business segment consists primarily of Adjacent Businesses and other corporate items.

Adjacent Businesses is comprised of (i) entertainment and media which helps industry clients store, safeguard and deliver physical 
media of all types, and provides digital content repository systems that house, distribute, and archive key media assets, throughout 
the United States, Canada, France, China - Hong Kong S.A.R., the Netherlands and the United Kingdom (“Entertainment 
Services”) and (ii) technical expertise in the handling, installation and storing of art in the United States, Canada and Europe (“Fine 
Arts”).

Our Corporate and Other Business segment also includes costs related to executive and staff functions, including finance, human 
resources and IT, which benefit the enterprise as a whole.

IRON MOUNTAIN 2020 FORM 10-K

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Part I

BUSINESS ATTRIBUTES

Our business has the following attributes: 

Large, Diversified,
Global Business

The world’s most heavily regulated organizations trust us with the storage of their 
records. Our mission-critical storage offerings and related services generated 
approximately $4.1 billion in annual revenue in 2020. Our business has a highly diverse 
customer base of approximately 225,000 customers - with no single customer 
accounting for more than 1% of revenue during the year ended December 31, 2020 - 
and operates in 56 countries globally. This presents a significant cross-sell opportunity 
for our Global Data Center and Global Digital Solutions businesses.

Recurring, Durable 
Revenue Stream

We generate a majority of our revenues from contracted storage rental fees, via 
agreements that generally range from one to five years in length. Historically, in our 
Records Management business, we have seen strong customer retention (of 
approximately 98%) and solid physical records retention; more than 50% of physical 
records that entered our facilities 15 years ago are still with us today. We have also seen 
strong customer retention in our Global Data Center Business, with low annual customer 
churn of approximately 4% - 8%.

Comprehensive Information
Management Solution

As an S&P 500 REIT with approximately 1,450 locations globally and with offerings 
spanning physical storage, digitization solutions and digital storage, we are positioned to 
provide a holistic offering to our customers. We are able to cater to our customers’ 
physical and digital needs and to help guide their digital transformation journey. 

Significant Owner and Operator
of Real Estate

We operate approximately 93 million square feet of real estate worldwide. Our owned 
real estate footprint spans nearly 26 million square feet and is concentrated in major 
metropolitan statistical areas in North America, Western Europe and Latin America.

Limited Revenue Cyclicality

Historically, economic downturns have not significantly affected our storage rental 
business. Due to the durability of our total global physical volumes, the success of our 
revenue management initiatives, and the growth of our Global Data Center Business, we 
believe we can continue to grow organic storage rental revenue over time.

Shifting Revenue Mix

We have identified a number of areas where we see opportunity for growth as we 
position ourselves to unlock greater value for our customers. These business lines, 
including Data Center, Fine Arts and Entertainment Services, Consumer Storage and 
Secure IT Asset Disposition, represent markets with strong secular growth.

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IRON MOUNTAIN 2020 FORM 10-K

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Part I

In addition, our Global Data Center business has the following attributes:

Large Data Center
Platform with Significant
Expansion Opportunity

As of December 31, 2020, we had 130 MW of leasable capacity with an additional 246 
MW under construction or held for development.

Differentiated Compliance
and Security

We offer comprehensive compliance support and physical and cyber security. Our multi-
layered approach to security includes a combination of technical and human security 
measures, and experienced senior military and public sector cyber security leaders 
oversee our security. As of December 31, 2020, our data centers comply with one of the 
most comprehensive compliance programs in the industry, including enterprise-wide 
certified ISO 14001 and 50001 environmental and energy management systems. We 
also report globally on service organizational controls, PCI-DSS compliance, and met 
FISMA HIGH and FedRAMP controls in the United States.

Efficient Access
and Flexibility

We have the ability to provide customers with a range of deployment options from one 
cabinet to an entire building, leveraging our global portfolio of hyperscale-ready and 
underground data centers. We also provide access to numerous carriers, cloud providers 
and peering exchanges with migration support and IT.

100% Green Powered
Data Centers

As of December 31, 2020, our Global Data Center platform was powered by 100% 
renewable energy, with carbon credit assistance and low power usage effectiveness 
(“PUE"). We are one of the top 25 buyers of renewable energy among the Fortune 1000 
and now offer the Green Power Pass, which allows customers to include the power they 
consume at any Iron Mountain data center as green power in their CDP, RE100, GRI, or 
other sustainability reporting.

COMPETITION

We compete with thousands of storage and information management services providers around the world as well as storage and 
information management services managed and operated internally by organizations. We believe that competition for records and 
information customers is based on price, reputation and reliability, quality and security of storage, quality of service and scope and 
scale of technology. While the majority of our competitors operate in only one market or region, we believe we provide a 
differentiated global offering that competes effectively in these areas.

We also compete with numerous data center developers, owners and operators, many of whom own properties similar to ours in 
some of the same metropolitan areas where our facilities are located. We believe that competition for data center customers is 
based on availability of power, security considerations, location, connectivity and rental rates, and we generally believe we compete 
effectively in each of these areas. Additionally, we believe our strong brand, global footprint and excellent commercial relationships 
enable us to compete successfully and provide significant cross-sell opportunities with our existing customer base.

HUMAN CAPITAL MANAGEMENT

EMPLOYEES

As of December 31, 2020, we employed approximately 9,000 employees in the United States and approximately 15,000 
employees outside of the United States. As of December 31, 2020, approximately 500 employees in California and Georgia and 
three provinces in Canada were represented by unions in North America and approximately 1,100 employees were represented by 
unions in Latin America (in Argentina, Brazil, Chile, Colombia and Mexico). All union employees are currently under renewed labor 
agreements or operating under an extension agreement.

BENEFIT PROGRAMS

Where applicable, employees are generally eligible to participate in our benefit programs, which may include health and welfare 
arrangements as well as pension schemes. Certain unionized employees in California receive these types of benefits through their 
unions and are not eligible to participate in our benefit programs. In addition to base compensation and other usual benefits, a 
significant portion of full-time employees participate in some form of incentive-based compensation program that provides 
payments based on revenues, profits or attainment of specified objectives for the unit in which they work. 

IRON MOUNTAIN 2020 FORM 10-K

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Part I

INCLUSION AND DIVERSITY

We believe that an inclusive environment with diverse teams produces more creative solutions, results in better, more innovative 
products and services and is crucial to our efforts to attract and retain key talent. We have prioritized inclusion and diversity ("I&D") 
as part of our corporate-wide strategic goals. Strategies we have taken to create and sustain a more inclusive and diverse 
environment include: appointing senior leadership for I&D efforts; ensuring that our recruiting efforts reflect our diversity goals; and 
launching, expanding and supporting our Employee Resource Groups—groups of our employees that voluntarily join together 
based on shared characteristics, life experiences, or interest around particular activities.

COMPANY CULTURE

We recognize that a great culture is foundational to how we deliver on our purpose and strategy and create sustained growth and 
value for our shareholders. We have committed significant resources to building a sustainable culture that enables innovation and 
creativity and facilitates trust, employee engagement, belonging and better performance. We understand the importance of 
listening to our employees, and, to that end, we regularly survey our employees to obtain their views and assess their experience. 
We use the views expressed in the surveys to adjust our approach on culture and driving employee engagement. We also use 
employee survey information, headcount data and cost analyses to gain insights into how and where we work.

COMMUNITY INVOLVEMENT

We are committed to integrating responsible and sustainable practices throughout our organization to help our operations to have a 
positive impact on the environment and the communities in which we operate. We aim to give back to the communities where we 
live and work, and believe that this commitment helps in our efforts to attract and retain employees. We offer philanthropic support 
to our global community through our Living Legacy Initiative, which is our commitment to help preserve and make accessible 
cultural and historical information and artifacts. We encourage volunteerism in the communities in which we live and work through 
our Moving Mountains volunteer program, offering paid time off for employees to help community-based and civic-minded 
organizations.

INSURANCE

For strategic risk transfer purposes, we maintain a comprehensive insurance program with insurers that we believe to be reputable 
and that have adequate capitalization in amounts that we believe to be appropriate. Property insurance is purchased on a 
comprehensive basis, including flood and earthquake (including excess coverage), subject to certain policy conditions, sublimits 
and deductibles. Property is insured based upon the replacement cost of real and personal property, including leasehold 
improvements, business income loss and extra expense. Other types of insurance that we carry, which are also subject to certain 
policy conditions, sublimits and deductibles, include medical, workers’ compensation, general liability, umbrella, automobile, 
professional, warehouse legal liability and directors’ and officers’ liability policies.

GOVERNMENT REGULATION

We are required to comply with numerous U.S. federal, state, and foreign laws and regulations covering a wide variety of subject 
matters which may have a material effect on our capital expenditures, earnings and competitive position.

For example, some of our current and formerly owned or leased properties were previously used by entities other than us for 
industrial or other purposes, or were affected by waste generated from nearby properties, that involved the use, storage, 
generation and/or disposal of hazardous substances and wastes, including petroleum products. In some instances, this prior use 
involved the operation of underground storage tanks or the presence of asbestos-containing materials. Where we are aware of 
environmental conditions that require remediation, we undertake appropriate activity, in accordance with all legal requirements. 
Although we have from time to time conducted limited environmental investigations and remedial activities at some of our former 
and current facilities, we have not undertaken an environmental review of all of our properties, including those we have acquired. 
We therefore may be potentially liable for environmental cost and may be unable to sell, rent, mortgage or use contaminated real 
estate owned or leased by us. Under various federal, state and local environmental laws, we may be liable for environmental 
compliance and remediation costs to address contamination, if any, located at owned and leased properties as well as damages 
arising from such contamination, whether or not we know of, or were responsible for, the contamination, or the contamination 
occurred while we owned or leased the property. Environmental conditions for which we might be liable may also exist at properties 
that we may acquire in the future. In addition, future regulatory action and environmental laws may impose costs for environmental 
compliance that do not exist today.

We transfer a portion of our risk of financial loss due to currently undetected environmental matters by purchasing an 
environmental impairment liability insurance policy, which covers all owned and leased locations. Coverage is provided for both 
liability and remediation costs.

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Part I

In addition, we are subject to numerous U.S. federal, state, local and foreign laws and regulations relating to data privacy and 
cybersecurity, which are complex, change frequently and have tended to become more stringent over time. We devote substantial 
resources, and may in the future have to devote significant additional resources, to facilitate compliance with these laws and 
regulations, and to investigate, defend or remedy actual or alleged violations or breaches. Any failure by us to comply with, or 
remedy any violations or breaches of, these laws and regulations could result in the curtailment of certain of our operations, the 
imposition of fines and penalties, liability resulting from litigation, restrictions on our ability to carry on or expand our operations, 
significant costs and expenses and reputational harm.

For more information about laws and regulations that could affect our business, see “Item 1A. Risk Factors” included in this Annual 
Report.

CORPORATE SOCIAL RESPONSIBILITY

Through our approach to Corporate Social Responsibility, we not only see ourselves as having our own responsibility to society, but 
also in helping our customers with their own environmental, social and governance (ESG) goals, and helping them gain value, 
make improvements and save costs. We are committed to responsible, sustainable growth and focus our environmental 
sustainability efforts on the concrete steps we can take to minimize the impact our operations have on the environment. To that 
end, we have publicly adopted long-term energy and emissions goals that establish aggressive reduction targets. We are 
committed to the safety and well-being of our employees and strive to cultivate a culture of inclusion that values diverse 
perspectives across our global workforce. Iron Mountain and its employees also make a social impact in the communities in which 
we operate through charitable giving and volunteerism.

We have been recognized for our commitment to Corporate Social Responsibility. We were named one of America’s Most 
Responsible Companies by Newsweek magazine in 2020. We ranked 81st on Newsweek’s 2021 list of America’s Most 
Responsible Companies. We received a 100% on the Human Rights Campaign Corporate Equality Index for 2018, 2019, 2020 and 
2021.  

We are committed to transparent reporting on sustainability and corporate responsibility efforts in accordance with the guidelines of 
the Global Reporting Initiative. Our corporate responsibility report highlights our progress against key measures of success for our 
efforts in the community, our environment, and for our people. We are a member of the FTSE4 Good Index, MSCI World ESG 
Index, MSCI ACWI ESG Index and MSCI USA IMI ESG Index, each of which include companies that meet globally recognized 
corporate responsibility standards. A copy of our corporate responsibility report is available on the “About Us” section of our 
website, www.ironmountain.com, under the heading “Corporate Social Responsibility." We are not including the information 
contained on or available through our website as part of, or incorporating such information by reference into, this Annual Report. In 
addition, we continue to work to further align our reporting with the recommendations of the Financial Stability Board’s Task Force 
on Climate-related Financial Disclosures to disclose climate-related financial risks and opportunities.

STRONG SUSTAINABILITY FOCUS

• Green Power Pass solution in Data Center market to help customers manage their carbon footprint.

• Part of RE100 Initiative — commitment to using renewable energy sources for 100% of our worldwide electricity.

• 81% of our global electricity use — including 100% of the electricity used to power our Data Center business — was from 

renewable sources in 2020.

• Recognized as a top 25 U.S. buyer of renewable energy and honored with the U.S. Department of Energy’s Better Buildings 

Goal Achiever Award.

• Reduced GHG emissions by 52% (since 2016) and achieved a 25% reduction in non-IT energy intensity, surpassing an 

original goal of 20% by 2026.

• Received a 100% on the Human Rights Campaign Corporate Equality Index for 2018, 2019, 2020 and 2021.

INTERNET WEBSITE

Our Internet address is www.ironmountain.com. Under the “Investors” section on our website, we make available, free of charge, 
our Annual Reports on Form 10-K, our Quarterly Reports on Form 10-Q, our Current Reports on Form 8-K and amendments to 
those reports filed or furnished pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (the “Exchange Act”) as 
soon as reasonably practicable after such forms are filed with or furnished to the SEC. We are not including the information 
contained on or available through our website as a part of, or incorporating such information by reference into, this Annual Report. 
Copies of our corporate governance guidelines, code of ethics and the charters of our audit, compensation, finance, nominating 
and governance, risk and safety, and technology committees are available on the “Investors” section of our website, 
www.ironmountain.com, under the heading “Corporate Governance."

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ITEM 1A. RISK FACTORS. 

We face many risks. If any of the events or circumstances described below actually occur, we and our businesses, financial 
condition or results of operations could suffer, and the trading price of our debt or equity securities could decline. Our current and 
potential investors should consider the following risks and the information contained under the heading “Cautionary Note Regarding 
Forward-Looking Statements” before deciding to invest in our securities.

BUSINESS RISKS

Our customers may shift from paper and tape storage to alternative technologies that require less physical space.

We derive most of our revenues from rental fees for the storage of physical records and computer backup tapes and from storage 
related services. Storage volume and/or demand for our traditional storage related services may decline as our customers adopt 
alternative storage technologies, which require significantly less space than traditional physical records and tape storage. Our 
customers’ shift from paper and tape storage to alternative technologies may accelerate as a result of the COVID-19 pandemic. 
While volumes in our Global RIM Business segment were relatively steady in 2020 and we expect them to remain relatively 
consistent in the near term, we can provide no assurance that our customers will continue to store most or a portion of their records 
as paper documents or as tapes, or that the paper documents or tapes they do store with us will require our storage related 
services at the same levels as they have in the past. A significant shift by our customers to storage of data through non-paper or 
non-tape-based technologies, whether now existing or developed in the future, could adversely affect our businesses. In addition, 
the digitization of records may shift our revenue mix from the more predictable storage revenue to service revenue, which is 
inherently more volatile.

The COVID-19 pandemic and its resulting economic impact may materially adversely affect our business, operations, financial 
results and liquidity.

In March 2020, the World Health Organization declared a novel strain of coronavirus (“COVID-19”) a pandemic. This resulted in 
U.S. federal, state and local and foreign governments and private entities mandating various restrictions, including travel 
restrictions, restrictions on public gatherings and stay-at-home orders and advisories. In response, we temporarily closed certain of 
our offices and facilities across the world, implemented certain travel restrictions for our employees and transitioned many of our 
employees to remote working arrangements, with some of our operations being run with limited personnel on site. In addition, 
many of our customers have implemented stay-at-home measures and other restrictions that reduce the demand for our routine 
services. 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. 

The COVID-19 pandemic has also had a substantial adverse impact on the global economy. While we do not currently believe that 
the implications of the COVID-19 pandemic have had a material adverse impact on our ability to collect our accounts receivable, 
global economic conditions related to the COVID-19 pandemic may have a material adverse effect on our customers, which could 
impact our future ability to collect our accounts receivable. In addition, if the COVID-19 pandemic and resulting recessionary 
conditions continue to disrupt the credit and financial markets or impact our credit ratings, our ability to access capital on favorable 
terms, if at all, could be adversely affected, which could have an adverse effect on our liquidity needs.

Due to the unpredictable and rapidly changing nature of the COVID-19 pandemic and the resulting economic distress, the extent to 
which it continues to impact us will depend on numerous factors that we are currently unable to predict, including: the duration and 
severity of the COVID-19 pandemic; the development, distribution and efficacy of any COVID-19 vaccines; the duration or re-
emergence of outbreaks; the continuation, resumption, and/or expansion of restrictions imposed by governments and businesses; 
the impact of the pandemic on economic activity and any resulting recessionary conditions, and the strength and duration of any 
economic recovery; the health of our workforce; our ability to meet staffing needs for critical functions; and the impact on our 
customers, suppliers, vendors, and other business partners, and their respective financial condition. Furthermore, when the 
COVID-19 pandemic has ended, our ability to resume normal business operations may be delayed, and actions we have taken to 
manage costs may make it more challenging to meet any increased customer demand following the pandemic.

Failure to execute our strategic growth plan may adversely impact our financial condition and results of operations.

As part of our strategic growth plan, we expect to invest in our existing businesses, including records and information management 
storage and services businesses in our higher-growth markets, data centers and adjacent businesses, and in new businesses, 
business strategies, products, services, technologies and geographies, and we may selectively divest certain businesses. These 
initiatives may involve significant risks and uncertainties, including:

• our inability to execute on our plan to incorporate the digitization of our customers’ records and new digital information 

•

technologies into our offerings;
failure to achieve satisfactory returns on new product offerings, acquired companies, joint ventures, growth initiatives, or other 
investments, particularly in markets where we do not currently operate or have a substantial presence;

• our inability to identify suitable companies to acquire, invest in or partner with;
• our inability to complete acquisitions or investments on satisfactory terms;
• our inability to structure acquisitions or investments in a manner that complies with our debt covenants and is consistent with our 

leverage ratio goals;

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•

increased demands on our management, operating systems, internal controls and financial and physical resources and, if 
necessary, our inability to successfully expand our infrastructure; 
incurring additional debt necessary to acquire suitable companies or make other growth investments if we are unable to pay the 
purchase price or make the investment out of working capital or the issuance of our common stock or other equity securities;
• our inability to manage the budgeting, forecasting and other process control issues presented by future growth, particularly with 

•

respect to operations in countries outside of the United States or in new lines of business;
insufficient revenues to offset expenses and liabilities associated with new investments; and

•
• our inability to attract, develop and retain skilled employees to lead and support our strategic growth plan, particularly in new 

businesses, technologies, products or offerings outside our core competencies.

Our data center expansion in particular requires significant capital commitments. Our data center expansion and other new 
ventures are inherently risky and we can provide no assurance that such strategies and offerings will be successful in achieving the 
desired returns within a reasonable timeframe, if at all, and that they will not adversely affect our business, reputation, financial 
condition, and operating results. 

We face competition from other companies, some of which possess substantial resources, in our efforts to grow our data center, 
international and complementary businesses. As a result, we may be unable to acquire or invest in, or we may pay a premium 
purchase price for, data centers, technology and higher-growth markets and adjacent businesses that support our strategic growth 
plan, which could have an adverse effect on our results of operations and financial condition. The foregoing risks may be 
exacerbated as a result of the COVID-19 pandemic. 

As stored records and tapes become less active our service revenue growth and profitability from related services may decline.

Our Records Management and Data Management service revenue growth is being negatively impacted by declining activity rates 
as stored records and tapes are becoming less active and more archival, and these activity levels were further negatively impacted 
by the COVID-19 pandemic. The amount of information available to customers digitally or in their own information systems has 
been steadily increasing in recent years, and we believe this trend continues to accelerate. As a result, our customers are less 
likely than they have been in the past to retrieve records and rotate tapes, thereby reducing their activity levels. At the same time, 
many of our costs related to records and tape related services remain fixed. In addition, our reputation for providing secure 
information storage is critical to our success, and actions to manage cost structure, such as outsourcing certain transportation, 
security or other functions, could negatively impact our reputation and adversely affect our business. Ultimately, if we are unable to 
appropriately align our cost structure with decreased levels of service activity, our operating results could be adversely affected. 

Our program to simplify our global structure may not be successful.

In October 2019, we announced Project Summit, a global program designed to better position us for future growth and 
achievement of our strategic objectives. Project Summit focuses on simplifying our global records and information management 
structure, streamlining our managerial structure and leveraging our global and regional customer facing resources. We also plan to 
implement systems and process changes designed to make our organization more agile and dynamic, streamline our organization 
and reallocate our resources to better align with our strategic goals. We expect the total program benefits associated with Project 
Summit, which we have expanded since our initial announcement, to be fully realized exiting 2021. However, we may not be able to 
realize the full amount of our expected improvements to Adjusted EBITDA in a timely manner, or at all, and the costs associated 
with Project Summit may exceed our expectations. In addition, this program may yield unintended consequences, such as attrition 
beyond our intended reduction in force, distraction of our employees and our anticipated systems and process changes may not 
work as expected and may create additional risks to our business. As a result, Project Summit could have a material adverse effect 
on our results of operations or financial condition.

Our future growth depends in part upon our ability to continue to effectively manage and execute on revenue management.

Over the past several years, our organic revenue growth has been positively impacted by our ability to effectively introduce, expand 
and monitor revenue management initially in our more established markets, and subsequently in our higher-growth markets. If we 
are not able to continue and effectively manage pricing, our results of operations could be adversely affected and we may not be 
able to execute on our strategic growth plan.

Changes in customer behavior with respect to destruction of records stored with us could adversely affect our business, financial 
condition and results of operations.

Over the past year, our destruction rates, as a percentage of records stored with us, have fluctuated. When destruction rates for 
records stored with us increase, it has a positive impact on our service revenues in the year of destruction but negatively impacts 
our longer term storage revenues, adversely affecting our financial condition and results of operations.

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We and our customers are subject to laws and governmental regulations relating to data privacy and cybersecurity and our 
customers’ demands in this area are increasing. This may cause us to incur significant expenses and non-compliance with such 
regulations and demands could harm our business.

We are subject to numerous U.S. federal, state, local and foreign laws and regulations relating to data privacy and cybersecurity. 
These regulations are complex, change frequently and have tended to become more stringent over time. There are also a number 
of legislative proposals pending before the U.S. Congress, various state legislative bodies and foreign governments concerning 
data protection that could affect us. In addition, a growing number of U.S. and foreign legislative and regulatory bodies have 
adopted consumer notification and other requirements if consumer information is accessed by unauthorized persons and additional 
regulations regarding the use, access, accuracy and security of such information are possible. In the U.S., we are subject to 
various state laws which provide for disparate notification regimes. In addition, as a result of the continued emphasis on information 
security and instances in which personal information has been compromised, our customers are requesting that we take 
increasingly sophisticated measures to enhance security and comply with data privacy regulations, and that we assume higher 
liability under our contracts. 

We devote substantial resources, and may in the future have to devote significant additional resources, to facilitate compliance with 
laws and regulations, our customers’ data privacy and security demands, and to investigate, defend or remedy actual or alleged 
violations or breaches. Any failure by us to comply with, or remedy any violations or breaches of, laws and regulations or customer 
requirements could result in the curtailment of certain of our operations, the imposition of fines and penalties, liability resulting from 
litigation, restrictions on our ability to carry on or expand our operations, significant costs and expenses and reputational harm. For 
example, we have experienced incidents in which customers’ information has been lost, and we have been informed by customers 
that some of the incidents involved the loss of personal information, resulting in monetary costs to those customers for which we 
have provided reimbursement. It is difficult to predict the impact on our business if we were subject to allegations of having violated 
existing laws or regulations. 

Attacks on our internal IT systems could damage our reputation and adversely affect our business, financial condition and results of 
operations.

Our reputation for providing secure information storage to customers is critical to the success of our business. Our reputation or 
brand, and specifically, the trust our customers place in us, could be negatively impacted in the event of perceived or actual failures 
by us to store information securely. Although we seek to prevent and detect attempts by unauthorized users to gain access to our 
IT systems, our IT and network infrastructure may be vulnerable to attacks by hackers or breaches due to employee error or other 
disruptions. Moreover, until we have migrated businesses we acquire onto our IT systems, we may face additional risks because of 
the continued use of predecessor IT systems. We have outsourced, and expect to continue to outsource, certain support services 
to third parties, which may subject our IT and other sensitive information to additional risk. In addition, the continuation of remote 
work arrangements or operating with limited personnel as a result of the COVID-19 pandemic could increase our cybersecurity 
risks. A successful breach of the security of our IT systems could lead to theft or misuse of our customers’ proprietary or 
confidential information and result in third party claims against us and reputational harm. Damage to our reputation could make us 
less competitive, which could negatively impact our business, financial condition and results of operations.

Complying with fire and safety standards may result in significant expense.

As of December 31, 2020, we operated approximately 1,450 facilities worldwide, including more than 600 in the United States. 
Many of these facilities were built and outfitted by third parties and added to our real estate portfolio as part of acquisitions. Some 
of these facilities contain fire suppression and safety features that are different from our current specifications and current 
standards for new facilities, although we believe all of our facilities were constructed, in all material respects, in compliance with 
applicable laws and regulations in effect at the time of their construction or outfitting. In some instances, local authorities may take 
the position that our fire suppression and safety features in a particular facility are insufficient and require additional measures that 
may involve considerable expense to us. In addition, where we determine that the fire suppression and safety features of a facility 
require improvement, we will develop and implement a plan to remediate the issue, although implementation may require an 
extended period to complete. A significant aspect of the integration of businesses we have acquired or may acquire is the process 
of making investments in the acquired facilities to conform such facilities to our standards of operations. This process is complex 
and time-consuming. If additional fire safety and suppression measures beyond our current operating plan were required at a large 
number of our facilities, the expense required for compliance could negatively impact our business, financial condition or results of 
operations.

If we fail to meet our commitment to transition to more renewable and sustainable sources of energy, it may negatively impact our 
ability to attract and retain customers, employees and investors who focus on this commitment. Furthermore, changes to 
environmental laws and standards may increase the cost to operate some of our businesses. This could impact our results of 
operations and the trading of our stock.

We have made a commitment to prioritize sustainable energy practices, reduce our carbon footprint and transition to more 
renewable and sustainable sources of energy, particularly in our data center business. We have made progress towards reducing 
our carbon footprint, but if we are not successful in continuing this reduction or if our customers, employees and investors are not 
satisfied with our sustainability efforts, it may negatively impact our ability to attract and retain customers, employees and investors 
who focus on this commitment. This could negatively impact our results of operations and the trading of our stock.

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Furthermore, changes in environmental laws in any jurisdiction in which we operate could increase compliance costs or impose 
limitations on our operations. For example, our emergency generators at our data centers are subject to regulations and permit 
requirements governing air pollutants, and the heating, ventilation and air conditioning and fire suppression systems at some of our 
data centers and data management locations may include ozone-depleting substances that are subject to regulation. While 
environmental regulations do not normally impose material costs upon operations at our facilities, unexpected events, equipment 
malfunctions, human error and changes in law or regulations, among other factors, could result in unexpected costs, which could 
be material.

Failure to successfully integrate acquired businesses could negatively impact our balance sheet and results of operations.

Strategic acquisitions are an important element of our growth strategy and the success of any acquisition we make depends in part 
on our ability to integrate the acquired business and realize anticipated synergies. The process of integrating acquired businesses, 
particularly in new markets, may involve unforeseen difficulties and may require a disproportionate amount of our management’s 
attention and our financial and other resources.

For example, the success of our significant acquisitions depends, in large part, on our ability to realize the anticipated benefits, 
including cost savings from combining the acquired businesses with ours. To realize these anticipated benefits, we must be able to 
successfully integrate our business and the acquired businesses, and this integration is complex and time-consuming. We may 
encounter challenges in the integration process including the following:

• challenges and difficulties associated with managing our larger, more complex, company;

• conforming standards, controls, procedures and policies, business cultures and compensation and benefits structures between 

the two businesses;

• consolidating corporate and administrative infrastructures;

• coordinating geographically dispersed organizations;

• potential unknown liabilities and unforeseen expenses or delays associated with an acquisition; and

• our ability to deliver on our strategy going forward.

Further, our acquisitions subject us to liabilities (including tax liabilities) that may exist at an acquired company, some of which may 
be unknown. Although we and our advisors conduct due diligence on the operations of businesses we acquire, there can be no 
guarantee that we are aware of all liabilities of an acquired company. These liabilities, and any additional risks and uncertainties 
related to an acquired company not known to us or that we may deem immaterial or unlikely to occur at the time of the acquisition, 
could negatively impact our future business, financial condition and results of operations.

We can give no assurance that we will ultimately be able to effectively integrate and manage the operations of any acquired 
business or realize anticipated synergies. The failure to successfully integrate the cultures, operating systems, procedures and 
information technologies of an acquired business could have a material adverse effect on our financial condition and results of 
operations.

Our customer contracts may not always limit our liability and may sometimes contain terms that could lead to disputes in contract 
interpretation.

Our customer contracts typically contain provisions limiting our liability regarding the loss or destruction of, or damage to, records, 
information, or other items stored with us. Our liability for physical storage is often limited to a nominal fixed amount per item or unit 
of storage (such as per cubic foot) and our liability for digital solutions, data center, destruction and other services unrelated to 
records, information and other items stored with us is often limited to a percentage of annual revenue under the contract; however, 
some of our contracts with large customers and some of the contracts assumed in our acquisitions contain no such limits or contain 
higher limits. We can provide no assurance that our limitation of liability provisions will be enforceable in all instances or, if 
enforceable, that they would otherwise protect us from liability. In addition to provisions limiting our liability, our customer contracts 
generally include a schedule setting forth the majority of the customer-specific terms, including storage rental and related service 
pricing and service delivery terms. Our customers may dispute the interpretation of various provisions in their contracts. In the past, 
we have had relatively few disputes with our customers regarding the terms of their customer contracts, and most disputes to date 
have not been material, but we can provide no assurance that we will not have material disputes in the future. Moreover, as we 
expand our operations in digital solutions and storage of fine arts and other valuable items and respond to customer demands for 
higher limitation of liability as a result of regulatory changes, our exposure to contracts with higher or no limitations of liability and 
disputes with customers over the interpretation of their contracts may increase. Although we maintain a comprehensive insurance 
program, we can provide no assurance that we will be able to maintain insurance policies on acceptable terms or with high enough 
coverage amounts to cover losses to us in connection with customer contract disputes.

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International operations may pose unique risks.

As of December 31, 2020, we operated in 55 countries outside the United States. Our international operations account for a 
significant portion of our overall operations, and as part of our growth strategy, we expect its share to increase as we continue to 
acquire or invest in businesses in select foreign markets, including countries where we do not currently operate. International 
operations are subject to numerous risks, including:

•

the impact of foreign government regulations and United States regulations that apply to us in foreign countries where we 
operate; in particular, we are subject to United States and foreign anti-corruption laws, such as the Foreign Corrupt Practices Act 
and the United Kingdom Bribery Act, and, although we have implemented internal controls, policies and procedures and training 
to deter prohibited practices, our employees, partners, contractors or agents may violate or circumvent such policies and the 
law;

•

the volatility of certain foreign economies in which we operate;

• political uncertainties and changes in the global political climate or other global events, such as the recent trade wars involving 
the U.S. or global pandemics, which may impose restrictions on, or create additional risk in relation to, global operations, which 
risks may become more pronounced as we consolidate operations across countries and need to move records and data across 
borders; 

• unforeseen liabilities, particularly within acquired businesses;

• costs and difficulties associated with managing international operations of varying sizes and scale, including operations involving 

cross-border service offerings;

• our operations in the United Kingdom and the European Union may be adversely affected by the exit from the European Union 

(Brexit) by the United Kingdom, and the associated uncertainty;

•

the risk that business partners upon whom we depend for technical assistance or management and acquisition expertise in 
some markets outside of the United States will not perform as expected;

• difficulties attracting and retaining local management and key employees to operate our business in certain countries; and

• cultural differences and differences in business practices and operating standards, as well as risks and challenges in expanding 

into countries where we have no prior operational experience.

Our use of joint ventures could expose us to additional risks and liabilities, including our reliance on joint venture partners that may 
have economic and business interests that are inconsistent with our business interests, our lack of sole decision-making authority, 
and disputes between us and our joint venture partners.

As part of our growth strategy, particularly in connection with our international and data center expansion, we currently, and may in 
the future, co-invest with third parties using joint ventures. These joint ventures can result in our holding non-controlling interests in, 
or having shared responsibility for managing the affairs of, a property or portfolio of properties, business, partnership, joint venture 
or other entity. As a result, in connection with our pursuit or entrance into any such joint venture, we may be subject to additional 
risks, including:

• our ability to sell our interests in the joint venture may be limited by the joint venture agreement; 

• our ability to grow our storage volume when we rely on non-controlling interests in joint ventures for this growth;

• we may not have the right to exercise sole decision-making authority regarding the properties, business, partnership, joint 

venture or other entity;

•

if our partners become bankrupt or fail to fund their share of required capital contributions, we may choose or be required to 
contribute such capital;

• our partners may have economic, tax or other interests or goals that are inconsistent with our interests or goals, and that could 

affect our ability to negotiate satisfactory joint venture terms, to operate the property or business or maintain our qualification for 
taxation as a REIT;

• our partners may be subject to different laws or regulations than us, or may be structured differently than us for tax purposes, 

which could create conflicts of interest and/or affect our ability to maintain our qualification for taxation as a REIT;

• our partners may take actions that are not within our control, which could require us to dispose of the joint venture asset, transfer 

it to a taxable REIT subsidiary (“TRS”) in order for us to maintain our qualification for taxation as a REIT, or purchase such 
partner’s interests or assets at an above-market price;

• we may agree to restrictions on our ability to expand our business in certain geographies independently or with other partners;

• disputes between us and our partners may result in litigation or arbitration that would increase our expenses and prevent our 

management from focusing their time and effort on our day-to-day business; and

• we may in certain circumstances be liable for the actions of our third-party partners or guarantee all or a portion of the joint 

venture’s liabilities, which may require us to pay an amount greater than our investment in the joint venture.

Each of these factors may result in returns on these investments being less than we expect or in losses, and our financial and 
operating results may be adversely affected.

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Significant costs or disruptions at our data centers could adversely affect our business, financial condition and results of operations.

Since 2017, we have substantially expanded our Global Data Center Business and we expect to continue to grow our Global Data 
Center Business. For example, we paid an aggregate cash purchase price of over $1.7 billion for data center businesses we 
acquired in 2017 and 2018 and incurred other costs associated with the development of real estate to support this business. Our 
Global Data Center Business depends on providing customers with highly reliable facilities, power infrastructure and operations 
solutions, and we will need to retain and hire qualified personnel to manage our data centers. Service interruptions or significant 
equipment damage could result in difficulty maintaining service level commitment obligations that we owe to certain of our 
customers. Service interruptions or equipment damage may occur at one or more of our data centers because of numerous factors, 
including: human error; equipment failure; physical, electronic and cyber security breaches; fire, hurricane, flood, earthquake and 
other natural disasters; water damage; fiber cuts; extreme temperatures; power loss or telecommunications failure; war, terrorism 
and any related conflicts or similar events worldwide; and sabotage and vandalism. We also purchase significant amounts of 
electricity from generating facilities and utility companies that are subject to environmental laws, regulations and permit 
requirements. These environmental requirements are subject to material change, which could result in increases in our electricity 
suppliers’ compliance costs that may be passed through to us. In addition, climate change may increase the likelihood that our data 
centers are affected by some of these factors.

While these risks could impact our overall business, they could have a more significant impact on our Global Data Center 
Business, where we have service level commitment obligations to certain of our customers. As a result, service interruptions or 
significant equipment damage at our data centers could result in difficulty maintaining service level commitments to these 
customers and potential claims related to such failures. Because our data centers are critical to many of our customers’ 
businesses, service interruptions or significant equipment damage at our data centers could also result in lost profits or other 
indirect or consequential damages to our customers.

Our Global Data Center Business is susceptible to regional costs of power, power shortages, planned or unplanned power outages 
and limitations on the availability of adequate power resources. We rely on third parties to provide power to our data centers. We 
are therefore subject to an inherent risk that such third parties may fail to deliver such power in adequate quantities or on a 
consistent basis. If the power delivered to our data centers is insufficient or interrupted, we would be required to provide power 
through the operation of our on-site generators, generally at a significantly higher operating cost. Additionally, global fluctuations in 
the price of power can increase the cost of energy, and we may be limited in our ability to, or may not always choose to, pass these 
increased costs on to our customers. We also rely on third party telecommunications carriers to provide internet connectivity to our 
customers. These carriers may elect not to offer or to restrict their services within our data centers or may elect to discontinue such 
services. Furthermore, carriers may face business difficulties, which could affect their ability to provide telecommunications 
services or the quality of such services. If connectivity is interrupted or terminated, our financial condition and results of operations 
may be adversely affected. Events such as these may also impact our reputation as a data center provider which could adversely 
affect our results of operations.

Our data center expansion requires a significant amount of capital and, if we are not able to raise that capital on advantageous 
terms, our ability to fund our data center expansion may be limited.

Our data center expansion requires significant capital commitments. In addition, we may be required to commit significant 
operational and financial resources in connection with the organic growth of our Global Data Center Business, generally 12 to 18 
months in advance of securing customer contracts, and we may not have enough customer demand to support these data centers 
when they are built. There can be no assurance we will have sufficient customer demand to support these data centers or data 
centers we have acquired or that we will not be adversely affected by the risks noted above, which could make it difficult for us to 
realize expected returns on our investments, if any. 

We have operations in numerous foreign countries and, as a result, are subject to foreign exchange translation risk, which could 
have an adverse effect on our financial results.

We conduct business operations in numerous foreign countries through our foreign subsidiaries or affiliates, which primarily 
transact in their respective local currencies. Those local currencies are translated into United States dollars at the applicable 
exchange rates for inclusion in our consolidated financial statements. The results of operations of, and certain of our debt balances 
(including intercompany debt balances) associated with, our international businesses are exposed to foreign exchange rate 
fluctuations. Upon translation, operating results may differ materially from expectations, and significant shifts in foreign currencies 
can impact our short-term results, as well as our long-term forecasts and targets. 

Failure to comply with certain regulatory and contractual requirements under our United States Government contracts could 
adversely affect our revenues, operating results and financial position and reputation.

Having the United States Government as a customer subjects us to certain regulatory and contractual requirements. Failure to 
comply with these requirements could subject us to investigations, price reductions, up to treble damages, and civil penalties. 
Noncompliance with certain regulatory and contractual requirements could also result in us being suspended or debarred from 
future United States Government contracting. We may also face private derivative securities claims because of adverse 
government actions. Any of these outcomes could have a material adverse effect on our revenues, operating results, financial 
position and reputation.

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We may be subject to certain costs and potential liabilities associated with the real estate required for our business.

Because our business is heavily dependent on real estate, we face special risks attributable to the real estate we own or lease. 
Such risks include:

• acquisition and occupancy costs that make it difficult to meet anticipated margins and difficulty locating suitable facilities due to a 

relatively small number of available buildings having the desired characteristics in some real estate markets;

• uninsured losses or damage to our storage facilities due to an inability to obtain full coverage on a cost-effective basis for some 
casualties, such as fires, hurricanes and earthquakes, or any coverage for certain losses, such as losses from riots or terrorist 
activities;

•

•

inability to use our real estate holdings effectively and costs associated with vacating or consolidating facilities if the demand for 
physical storage were to diminish; and

liability under environmental laws for the costs of investigation and cleanup of contaminated real estate owned or leased by us, 
whether or not (i) we know of, or were responsible for, the contamination, or (ii) the contamination occurred while we owned or 
leased the property.

Some of our current and formerly owned or leased properties were previously used by entities other than us for industrial or other 
purposes, or were affected by waste generated from nearby properties, that involved the use, storage, generation and/or disposal 
of hazardous substances and wastes, including petroleum products. In some instances this prior use involved the operation of 
underground storage tanks or the presence of asbestos-containing materials. Where we are aware of environmental conditions that 
require remediation, we undertake appropriate activity, in accordance with all legal requirements. Although we have from time to 
time conducted limited environmental investigations and remedial activities at some of our former and current facilities, we have not 
undertaken an environmental review of all of our properties, including those we have acquired. We therefore may be potentially 
liable for environmental costs like those discussed above and may be unable to sell, rent, mortgage or use contaminated real 
estate owned or leased by us. Environmental conditions for which we might be liable may also exist at properties that we may 
acquire in the future. In addition, future regulatory action and environmental laws may impose costs for environmental compliance 
that do not exist today.

Unexpected events, including those resulting from climate change, could disrupt our operations and adversely affect our reputation 
and results of operations.

Unexpected events, including fires or explosions at our facilities, war or terrorist activities, natural disasters such as earthquakes 
and wildfires, unplanned power outages, supply disruptions, failure of equipment or systems, and severe weather events, such as 
droughts, heat waves, hurricanes, and flooding, could adversely affect our reputation and results of operations through physical 
damage to our facilities and equipment and through physical damage to, or disruption of, local infrastructure. During the past 
several years we have seen an increase in the frequency and intensity of severe weather events and we expect this trend to 
continue due to climate change. Some of our key facilities worldwide are vulnerable to severe weather events, and global weather 
pattern changes may also pose long-term risks of physical impacts to our business. Our customers rely on us to securely store and 
timely retrieve their critical information, and, while we maintain disaster recovery and business continuity plans that would be 
implemented these situations, these unexpected events could result in customer service disruption, physical damage to one or 
more key operating facilities and the information stored in those facilities, the temporary closure of one or more key operating 
facilities or the temporary disruption of information systems, each of which could negatively impact our reputation and results of 
operations. In addition, these unexpected events could negatively impact our reputation if such events result in adverse publicity, 
governmental investigations or litigation or if customers do not otherwise perceive our response to be adequate. 

Fluctuations in commodity prices may affect our operating revenues and results of operations.

Our operating revenues and results of operations are impacted by significant changes in commodity prices. In particular, our secure 
shredding operations generate revenue from the sale of shredded paper for recycling. Further, significant declines in the cost of 
paper may continue to negatively impact our revenues and results of operations, and increases in other commodity prices, 
including steel, may negatively impact our results of operations.

Failure to manage and adequately implement our new IT systems could negatively affect our business.

We rely on IT infrastructure, including hardware, networks, software, people and processes, to provide information to support 
assessments and conclusions about our operating performance. We are in the process of upgrading a number of our IT systems, 
including consolidating our existing billing systems, and we face risks relating to these transitions. For example, we may incur 
greater costs than we anticipate training our personnel on the new systems, we may experience service disruptions or errors in 
accurately capturing data or retaining our records, and we may be delayed in meeting our various reporting obligations. There can 
be no assurance that we will manage our IT systems and implement these new systems as planned or that we will do so without 
disruptions to our operations, which could have an adverse effect on our business, financial condition, results of operations and 
cash flows.

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RISKS RELATED TO OUR INDEBTEDNESS

Our substantial indebtedness could adversely affect our financial health and prevent us from fulfilling our obligations under our 
various debt instruments.

We have a significant amount of indebtedness. As of December 31, 2020, our total long-term debt was approximately $8.7 billion, 
stockholders equity was approximately $1.1 billion and we had cash and cash equivalents (including restricted cash) of 
approximately $205.1 million. Our substantial indebtedness could have important consequences to our current and potential 
investors. These risks include:

•

•

•

•

•

•

•

•

inability to satisfy our obligations with respect to our various debt instruments;

inability to make borrowings to fund future working capital, capital expenditures and strategic opportunities, including 
acquisitions, further organic development of our Global Data Center Business and expansions into adjacent businesses, and 
other general corporate requirements, including possible required repurchases, redemptions or prepayments of our various 
indebtedness;

limits on our distributions to stockholders; in this regard if these limits prevented us from satisfying our REIT distribution 
requirements, we could fail to remain qualified for taxation as a REIT or, if these limits do not jeopardize our qualification for 
taxation as a REIT but do nevertheless prevent us from distributing 100% of our REIT taxable income, we will be subject to 
federal corporate income tax, and potentially a nondeductible excise tax, on the retained amounts;

limits on future borrowings under our existing or future credit arrangements, which could affect our ability to pay our 
indebtedness or to fund our other liquidity needs;

inability to generate sufficient funds to cover required interest payments;

restrictions on our ability to refinance our indebtedness on commercially reasonable terms;

limits on our flexibility in planning for, or reacting to, changes in our business and the information management services industry; 
and

inability to adjust to adverse economic conditions that could place us at a disadvantage to our competitors with less debt and 
who, therefore, may be able to take advantage of opportunities that our indebtedness prevents us from pursuing.

We are subject to risks associated with debt financing, including the risk that our cash flow could be insufficient to meet required 
payments on our debt. In particular, if as a result of the COVID-19 pandemic our revenues, cash flows and/or Adjusted EBITDA 
continue to decline or we incur additional indebtedness, we may be unable to make required payments on our debt or to satisfy the 
financial and other covenants contained in our Credit Agreement (as defined in Note 6 to Notes to Consolidated Financial 
Statements included in this Annual Report) and our indentures. In addition, the expected elimination of the London Interbank 
Offered Rate (“LIBOR”) may adversely affect interest expense related to borrowings under certain of our credit arrangements and 
interest rate swaps, and could disrupt financial markets generally, which could potentially negatively impact our financial condition.

Despite our current indebtedness levels, we may still be able to incur substantially more debt. The terms of our indentures 
generally do not cap the maximum amount of additional funds that may be borrowed under our Credit Agreement and possible 
future credit arrangements. 

Restrictive debt covenants may limit our ability to pursue our growth strategy.

Our Credit Agreement and our indentures contain covenants restricting or limiting our ability to, among other things:

•

incur additional indebtedness;

• pay dividends or make other restricted payments;

• make asset dispositions;

• create or permit liens;

• sell, transfer or exchange assets;

• guarantee certain indebtedness;

• make acquisitions and other investments; and

• enter into partnerships and joint ventures.

These restrictions and our long-term commitment to reduce our leverage ratio may adversely affect our ability to pursue our 
acquisition and other growth strategies.

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We may not have the ability to raise the funds necessary to finance the repurchase of outstanding senior notes upon a change of 
control event as required by our indentures.

Upon the occurrence of a “change of control,” as defined in our indentures, we will be required to offer to repurchase all of our 
outstanding senior notes. However, it is possible that we will not have sufficient funds at the time of a change of control to make the 
required repurchase of any outstanding notes or that restrictions in our Credit Agreement will not allow such repurchases. Certain 
important corporate events, however, such as leveraged recapitalizations that would increase the level of our indebtedness, would 
not constitute a “change of control” under our indentures.

Iron Mountain Incorporated (“IMI”) is a holding company, and, therefore, its ability to make payments on its various debt obligations 
depends in large part on the operations of its subsidiaries.

IMI is a holding company; substantially all of its assets consist of the equity in its subsidiaries, and substantially all of its operations 
are conducted by its direct and indirect consolidated subsidiaries. As a result, its ability to make payments on its debt obligations 
will be dependent upon the receipt of sufficient funds from its subsidiaries, whose ability to distribute funds may be limited by local 
capital requirements, joint venture structures and other applicable restrictions. However, our various debt obligations are 
guaranteed, on a joint and several and full and unconditional basis, by IMI’s U.S. subsidiaries that represent the substantial 
majority of its U.S. operations.

RISKS RELATED TO OUR TAXATION AS A REIT

If we fail to remain qualified for taxation as a REIT, we will be subject to tax at corporate income tax rates and will not be able to 
deduct distributions to stockholders when computing our taxable income.

We have elected to be taxed as a REIT since our 2014 taxable year. We believe that our organization and method of operation 
comply with the rules and regulations promulgated under the Internal Revenue Code of 1986, as amended (the “Code”), such that 
we will continue to qualify for taxation as a REIT. However, we can provide no assurance that we will remain qualified for taxation 
as a REIT. If we fail to remain qualified for taxation as a REIT, we will be taxed at corporate income tax rates unless certain relief 
provisions apply.

Qualification for taxation as a REIT involves the application of highly technical and complex provisions of the Code to our 
operations as well as various factual determinations concerning matters and circumstances not entirely within our control. There 
are limited judicial or administrative interpretations of applicable REIT provisions of the Code.

If, in any taxable year, we fail to remain qualified for taxation as a REIT and are not entitled to relief under the Code:

• we will not be allowed a deduction for distributions to stockholders in computing our taxable income;

• we will be subject to federal and state income tax on our taxable income at regular corporate income tax rates; and

• we would not be eligible to elect REIT status again until the fifth taxable year that begins after the first year for which we failed to 

qualify for taxation as a REIT.

Any such corporate tax liability could be substantial and would reduce the amount of cash available for other purposes. If we fail to 
remain qualified for taxation as a REIT, we may need to borrow additional funds or liquidate some investments to pay any 
additional tax liability. Accordingly, funds available for investment and distributions to stockholders could be reduced.

As a REIT, failure to make required distributions would subject us to federal corporate income tax.

We expect to continue paying regular quarterly distributions; however, the amount, timing and form of our regular quarterly 
distributions will be determined, and will be subject to adjustment, by our board of directors. To remain qualified for taxation as a 
REIT, we are generally required to distribute at least 90% of our REIT taxable income (determined without regard to the dividends 
paid deduction and excluding net capital gain) each year, or in limited circumstances, the following year, to our stockholders. 
Generally, we expect to distribute all or substantially all of our REIT taxable income. If our cash available for distribution falls short 
of our estimates, we may be unable to maintain distributions that approximate our REIT taxable income and may fail to remain 
qualified for taxation as a REIT. In addition, our cash flows from operations may be insufficient to fund required distributions as a 
result of differences in timing between the actual receipt of income and the payment of expenses and the recognition of income and 
expenses for federal income tax purposes, or the effect of nondeductible expenditures.

To the extent that we satisfy the 90% distribution requirement but distribute less than 100% of our REIT taxable income, we will be 
subject to federal corporate income tax on our undistributed taxable income. In addition, we will be subject to a 4% nondeductible 
excise tax on our undistributed taxable income if the actual amount that we distribute to our stockholders for a calendar year is less 
than the minimum amount specified under the Code.

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We may be required to borrow funds, sell assets or raise equity to satisfy our REIT distribution requirements, to comply with asset 
ownership tests or to fund capital expenditures, future growth and expansion initiatives.

In order to satisfy our REIT distribution requirements and maintain our qualification and taxation as a REIT, or to fund capital 
expenditures, future growth and expansion initiatives, we may need to borrow funds, sell assets or raise equity, even if our financial 
condition or the then-prevailing market conditions are not favorable for these borrowings, sales or offerings. Furthermore, the REIT 
distribution requirements and our commitment to investors on dividend growth may result in increasing our financing needs to fund 
capital expenditures, future growth and expansion initiatives, which would increase our indebtedness. An increase in our 
outstanding debt could lead to a downgrade of our credit ratings, which could negatively impact our ability to access credit markets. 
Further, certain of our current debt instruments limit the amount of indebtedness we and our subsidiaries may incur. Additional 
financing, therefore, may be unavailable, more expensive or restricted by the terms of our outstanding indebtedness. For a 
discussion of risks related to our substantial level of indebtedness, see “Risks Related to Our Indebtedness.”

Complying with REIT requirements may limit our flexibility, cause us to forgo otherwise attractive opportunities that we would 
otherwise pursue to execute our growth strategy, or otherwise reduce our income and amounts available for distribution to our 
stockholders.

To remain qualified for taxation as a REIT, we must satisfy tests concerning, among other things, the sources of our income, the 
nature and diversification of our assets and the amounts we distribute to our stockholders. Thus, compliance with these tests may 
require us to refrain from certain activities and may hinder our ability to make certain attractive investments, including the purchase 
of non-REIT qualifying operations or assets, the expansion of non-real estate activities, and investments in the businesses to be 
conducted by our TRSs, and to that extent limit our opportunities and our flexibility to change our business strategy. This may 
restrict our ability to enter into joint ventures or acquire minority interests of companies. Furthermore, acquisition opportunities in 
domestic and international markets may be adversely affected if we need or require the target company to comply with some REIT 
requirements prior to closing.

We conduct a significant portion of our business activities, including our information management services businesses and several 
of our international operations, through domestic and foreign TRSs. Under the Code, no more than 25% of the value of the assets 
of a REIT may be represented by securities of one or more TRSs and other nonqualifying assets. In addition, no more than 20% of 
the value of the assets of a REIT may be represented by securities of one or more TRSs within the overall 25% nonqualifying 
assets limitation. These limitations may affect our ability to make additional investments in non-REIT qualifying operations or assets 
or in international operations through TRSs.

If we fail to comply with specified asset ownership tests applicable to REITs as measured at the end of any calendar quarter, we 
generally must correct such failure within 30 days after the end of the applicable calendar quarter or qualify for statutory relief 
provisions to avoid losing our qualification for taxation as a REIT. As a result, we may be required to liquidate assets or to forgo our 
pursuit of otherwise attractive investments. These actions may reduce our income and amounts available for distribution to our 
stockholders.

As a REIT, we are limited in our ability to fund distribution payments using cash generated through our TRSs.

Our ability to receive distributions from our TRSs is limited by the rules with which we must comply to maintain our qualification for 
taxation as a REIT. In particular, at least 75% of our gross income for each taxable year as a REIT must be derived from real 
estate, which generally includes gross income from providing customers with secure storage space or colocation or wholesale data 
center space. Consequently, no more than 25% of our gross income may consist of dividend income from our TRSs and other 
nonqualifying types of income. Thus, our ability to receive distributions from our TRSs may be limited, which may impact our ability 
to fund distributions to our stockholders using cash flows from our TRSs. Specifically, if our TRSs become highly profitable, we 
might become limited in our ability to receive net income from our TRSs in an amount required to fund distributions to our 
stockholders commensurate with that profitability.

In addition, a significant amount of our income and cash flows from our TRSs is generated from our international operations. In 
many cases, there are local withholding taxes and currency controls that may impact our ability or willingness to repatriate funds to 
the United States to help satisfy REIT distribution requirements.

Our extensive use of TRSs, including for certain of our international operations, may cause us to fail to remain qualified for taxation 
as a REIT.

Our operations include an extensive use of TRSs. The net income of our TRSs is not required to be distributed to us, and income 
that is not distributed to us generally is not subject to the REIT income distribution requirement. However, there may be limitations 
on our ability to accumulate earnings in our TRSs and the accumulation or reinvestment of significant earnings in our TRSs could 
result in adverse tax treatment. In particular, if the accumulation of cash in our TRSs causes (1) the fair market value of our 
securities in our TRSs to exceed 20% of the fair market value of our assets or (2) the fair market value of our securities in our TRSs 
and other nonqualifying assets to exceed 25% of the fair market value of our assets, then we will fail to remain qualified for taxation 
as a REIT. Further, a substantial portion of our operations are conducted overseas, and a material change in foreign currency rates 
could also affect the value of our foreign holdings in our TRSs, negatively impacting our ability to remain qualified for taxation as a 
REIT.

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Even if we remain qualified for taxation as a REIT, some of our business activities are subject to corporate level income tax and 
foreign taxes, which will continue to reduce our cash flows, and we will have potential deferred and contingent tax liabilities.

Even  if  we  remain  qualified  for  taxation  as  a  REIT,  we  may  be  subject  to  some  federal,  state,  local  and  foreign  taxes,  including 
taxes on any undistributed income, and state, local or foreign income, franchise, property and transfer taxes. In addition, we could 
in certain circumstances be required to pay an excise or penalty tax, which could be significant in amount, in order to utilize one or 
more relief provisions under the Code to maintain our qualification for taxation as a REIT.

A portion of our business is conducted through wholly-owned TRSs because certain of our business activities could generate 
nonqualifying REIT income as currently structured and operated. The income of our domestic TRSs will continue to be subject to 
federal and state corporate income taxes. In addition, our international assets and operations will continue to be subject to taxation 
in the foreign jurisdictions where those assets are held or those operations are conducted. Any of these taxes would decrease our 
earnings and our available cash.

We will also be subject to a federal corporate level income tax at the highest regular corporate income tax rate (currently 21%) on 
gain recognized from a sale of a REIT asset where our basis in the asset is determined by reference to the basis of the asset in the 
hands of a C corporation (such as an asset that we hold in one of our qualified REIT subsidiaries (“QRSs”) following the liquidation 
or other conversion of a former TRS). This 21% tax is generally applicable to any disposition of such an asset during the five-year 
period after the date we first owned the asset as a REIT asset to the extent of the built-in-gain based on the fair market value of 
such asset on the date we first held the asset as a REIT asset. In addition, any depreciation recapture income that we recognize 
because of accounting method changes that we make in connection with our acquisition activities will be fully subject to this 21% 
tax.

Complying with REIT requirements may limit our ability to hedge effectively and increase the cost of our hedging and may cause us 
to incur tax liabilities.

The REIT provisions of the Code limit our ability to hedge assets, liabilities, revenues and expenses. Generally, income from 
hedging transactions that we enter into to manage risk of interest rate changes with respect to borrowings made or to be made by 
us to acquire or carry real estate assets and income from certain currency hedging transactions related to our non- United States 
operations, as well as income from qualifying counteracting hedges, do not constitute “gross income” for purposes of the REIT 
gross income tests. To the extent that we enter into other types of hedging transactions, the income from those transactions is likely 
to be treated as nonqualifying income for purposes of the REIT gross income tests. As a result of these rules, we may need to limit 
our use of advantageous hedging techniques or implement those hedges through our TRSs. This could increase the cost of our 
hedging activities because our TRSs would be subject to tax on income or gains resulting from hedges entered into by them and 
may expose us to greater risks associated with changes in interest rates or exchange rates than we would otherwise want to bear. 
In addition, hedging losses in any of our TRSs generally will not provide any tax benefit, except for being carried forward for 
possible use against future income or gain in the TRSs.

Distributions payable by REITs generally do not qualify for preferential tax rates.

Dividends payable by United States corporations to noncorporate stockholders, such as individuals, trusts and estates, are 
generally eligible for reduced United States federal income tax rates applicable to “qualified dividends.” Distributions paid by REITs 
generally are not treated as “qualified dividends” under the Code, and the reduced rates applicable to such dividends do not 
generally apply. However, for tax years beginning before 2026, REIT dividends paid to noncorporate stockholders are generally 
taxed at an effective tax rate lower than applicable ordinary income tax rates due to the availability of a deduction under the Code 
for specified forms of income from passthrough entities. More favorable rates will nevertheless continue to apply to regular 
corporate “qualified” dividends, which may cause some investors to perceive that an investment in a REIT is less attractive than an 
investment in a non-REIT entity that pays dividends, thereby reducing the demand and market price of our common stock.

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The ownership and transfer restrictions contained in our certificate of incorporation may not protect our qualification for taxation as 
a REIT, could have unintended antitakeover effects and may prevent our stockholders from receiving a takeover premium.

In order for us to remain qualified for taxation as a REIT, no more than 50% of the value of outstanding shares of our capital stock 
may be owned, beneficially or constructively, by five or fewer individuals at any time during the last half of each taxable year. In 
addition, rents from “affiliated tenants” will not qualify as qualifying REIT income if we own 10% or more by vote or value of the 
customer, whether directly or after application of attribution rules under the Code. Subject to certain exceptions, our certificate of 
incorporation prohibits any stockholder from owning, beneficially or constructively, more than (i) 9.8% in value of the outstanding 
shares of all classes or series of our capital stock or (ii) 9.8% in value or number, whichever is more restrictive, of the outstanding 
shares of any class or series of our capital stock. We refer to these restrictions collectively as the “ownership limits” and we 
included them in our certificate of incorporation to facilitate our compliance with REIT tax rules. The constructive ownership rules 
under the Code are complex and may cause the outstanding stock owned by a group of related individuals or entities to be deemed 
to be constructively owned by one individual or entity. As a result, the acquisition of less than 9.8% of our outstanding common 
stock (or the outstanding shares of any class or series of our capital stock) by an individual or entity could cause that individual or 
entity or another individual or entity to own constructively in excess of the relevant ownership limits. Any attempt to own or transfer 
shares of our common stock or of any of our other capital stock in violation of these restrictions may result in the shares being 
automatically transferred to a charitable trust or may be void. Even though our certificate of incorporation contains the ownership 
limits, there can be no assurance that these provisions will be effective to prevent our qualification for taxation as a REIT from 
being jeopardized, including under the affiliated tenant rule. Furthermore, there can be no assurance that we will be able to monitor 
and enforce the ownership limits. If the restrictions in our certificate of incorporation are not effective and, as a result, we fail to 
satisfy the REIT tax rules described above, then absent an applicable relief provision, we will fail to remain qualified for taxation as 
a REIT.

In addition, the ownership and transfer restrictions could delay, defer or prevent a transaction or a change in control that might 
involve a premium price for our stock or otherwise be in the best interest of our stockholders. As a result, the overall effect of the 
ownership and transfer restrictions may be to render more difficult or discourage any attempt to acquire us, even if such acquisition 
may be favorable to the interests of our stockholders. 

Legislative or other actions affecting REITs could have a negative effect on us or our stockholders. 

At any time, the federal or state income tax laws governing REITs, the administrative interpretations of those laws, or local laws 
impacting our REIT structure for our international operations may be amended. Federal, state and local tax laws are constantly 
under review by persons involved in the legislative process, the IRS, the United States Department of the Treasury (“Treasury”) and 
state and local taxing authorities. Changes to the tax laws, regulations and administrative interpretations or local laws governing 
our international operations, which may have retroactive application, could adversely affect us. In addition, some of these changes 
could have a more significant impact on us as compared to other REITs due to the nature of our business and our substantial use 
of TRSs, particularly non-United States TRSs or how we have structured our operations outside the United States to comply with 
our REIT structure. We cannot predict with certainty whether, when, in what forms, or with what effective dates, the tax laws, 
regulations, administrative interpretations or local laws applicable to us may be changed or if such laws would impact our ability to 
qualify for taxation as a REIT or the costs for doing so. 

GENERAL RISK FACTORS

Our cash distributions are not guaranteed and may fluctuate.

As a REIT, we are generally required to distribute at least 90% of our REIT taxable income to our stockholders. Furthermore, we 
are committed to growing our dividends, and have stated this publicly.

Our board of directors, in its sole discretion, will determine, on a quarterly basis, the amount of cash to be distributed to our 
stockholders based on a number of factors including, but not limited to, our results of operations, cash flow and capital 
requirements, economic conditions, tax considerations, borrowing capacity and other factors, including debt covenant restrictions 
that may impose limitations on cash payments, future acquisitions and divestitures, any stock repurchase program and general 
market demand for our space and related services. Consequently, our distribution levels may fluctuate and we may not be able to 
meet our public commitments with respect to dividend growth.

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Our business could be adversely impacted if there are deficiencies in our disclosure controls and procedures or internal control 
over financial reporting.

The design and effectiveness of our disclosure controls and procedures and internal control over financial reporting may not 
prevent all errors, misstatements or misrepresentations. While management will continue to review the effectiveness of our 
disclosure controls and procedures and internal control over financial reporting, there can be no guarantee that our internal control 
over financial reporting will be effective in accomplishing all control objectives all of the time. Moreover, the continuation of remote 
work arrangements as a result of the COVID-19 pandemic could negatively impact our internal controls over financial reporting. 
Furthermore, our disclosure controls and procedures and internal control over financial reporting with respect to entities that we do 
not control or manage may be substantially more limited than those we maintain with respect to the subsidiaries that we have 
controlled or managed over the course of time. Deficiencies, including any material weakness, in our internal control over financial 
reporting which may occur in the future could result in misstatements of our results of operations, restatements of our financial 
statements, a decline in our stock price, or otherwise materially adversely affect our business, reputation, results of operations, 
financial condition or liquidity.

We face competition for customers.

We compete with multiple businesses in all geographic areas where we operate; our current or potential customers may choose to 
use those competitors instead of us. In addition, if we are successful in winning customers from competitors, the process of moving 
their stored records into our facilities is often costly and time consuming. We also compete, in some of our business lines, with our 
current and potential customers’ internal storage and information management services capabilities and their cloud-based 
alternatives. These organizations may not begin or continue to use us for their future storage and information management service 
needs.

The performance of our businesses relies on our ability to attract, develop, and retain talented personnel, while controlling our labor 
costs.

We are highly dependent on skilled and qualified personnel to operate our businesses. The failure to attract and retain qualified 
employees or to effectively control our labor costs could negatively affect our competitive position and operating results. Our ability 
to control labor costs and attract qualified personnel is subject to numerous external factors, including prevailing wages, labor 
shortages, the impact of legislation or regulations governing wages and hours, labor relations, immigration, healthcare and other 
benefits, other employment-related costs and the hiring practices of our competitors.

ITEM 1B. UNRESOLVED STAFF COMMENTS.

None.

ITEM 2. PROPERTIES. 

As of December 31, 2020, we conducted operations through 1,167 leased facilities and 281 owned facilities. Our facilities are 
divided among our reportable operating segments as follows: Global RIM Business (1,374), Global Data Center Business (15) and 
Corporate and Other Business (59). These facilities contain a total of approximately 92.7 million square feet of space. A breakdown 
of owned and leased facilities by country (and by state within the United States) is listed below: 

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COUNTRY/STATE

North America

United States (Including Puerto Rico)

Alabama

Arizona

Arkansas

California

Colorado

Connecticut

Delaware

District of Columbia

Florida

Georgia

Idaho

Illinois

Indiana

Iowa

Kansas

Kentucky

Louisiana

Maine

Maryland

Massachusetts (including Corporate 
Headquarters)

Michigan

Minnesota

Mississippi

Missouri

Montana

Nebraska

Nevada

New Hampshire

New Jersey

New Mexico

New York

North Carolina

Ohio

Oklahoma

Oregon

Pennsylvania

Puerto Rico

Rhode Island

South Carolina

Tennessee

Texas

Utah

Vermont

Virginia

Washington

West Virginia

Wisconsin

Total United States

Canada

Total North America

LEASED

OWNED

TOTAL

NUMBER

SQUARE FEET

NUMBER

SQUARE FEET

NUMBER

SQUARE FEET

Part I

3 

8 

2 

  66 

  10 

4 

4 

1 

  33 

  10 

2 

  15 

6 

2 

3 

3 

4 

  — 

  19 

8 

  13 

  12 

3 

  10 

3 

1 

7 

  — 

  34 

3 

  20 

  19 

  14 

5 

  11 

  24 

4 

1 

4 

5 

  40 

2 

2 

  12 

7 

2 

6 

 467 

  49 

 516 

312,473 

496,448 

63,604 

5,606,499 

499,546 

199,114 

309,067 

1,670 

2,356,117 

826,606 

105,021 

1,213,808 

344,516 

145,138 

253,919 

116,000 

388,475 

— 

2,032,517 

545,039 

785,563 

908,474 

201,300 

1,225,648 

35,990 

34,560 

276,520 

— 

3,091,948 

151,473 

921,775 

976,504 

1,064,729 

228,425 

384,296 

2,335,704 

237,969 

70,159 

247,375 

256,743 

2,172,049 

78,148 

55,200 

685,369 

719,991 

105,502 

389,857 

33,456,848 

3,076,099 

36,532,947 

1 

6 

  — 

  10 

4 

6 

1 

  — 

5 

5 

  — 

7 

  — 

1 

  — 

4 

  — 

1 

2 

8 

6 

  — 

  — 

5 

  — 

3 

1 

1 

8 

  — 

  13 

3 

5 

  — 

1 

4 

1 

1 

2 

4 

  27 

1 

  — 

7 

5 

  — 

1 

  160 

  16 

  176 

12,621 

1,207,281 

— 

958,856 

484,490 

665,013 

120,921 

— 

263,930 

265,049 

— 

1,309,975 

— 

14,200 

— 

418,760 

— 

95,000 

83,442 

1,173,503 

345,736 

— 

— 

373,120 

— 

316,970 

107,041 

146,467 

2,476,635 

— 

1,186,266 

150,624 

290,291 

— 

55,621 

2,067,081 

54,352 

12,748 

214,238 

63,909 

4 

  14 

2 

  76 

  14 

  10 

5 

1 

  38 

  15 

2 

  22 

6 

3 

3 

7 

4 

1 

  21 

  16 

  19 

  12 

3 

  15 

3 

4 

8 

1 

  42 

3 

  33 

  22 

  19 

5 

  12 

  28 

5 

2 

6 

9 

2,229,977 

  67 

90,553 

— 

795,036 

196,028 

— 

10,655 

  18,256,389 

1,783,258 

  20,039,647 

3 

2 

  19 

  12 

2 

7 

  627 

  65 

  692 

325,094 

1,703,729 

63,604 

6,565,355 

984,036 

864,127 

429,988 

1,670 

2,620,047 

1,091,655 

105,021 

2,523,783 

344,516 

159,338 

253,919 

534,760 

388,475 

95,000 

2,115,959 

1,718,542 

1,131,299 

908,474 

201,300 

1,598,768 

35,990 

351,530 

383,561 

146,467 

5,568,583 

151,473 

2,108,041 

1,127,128 

1,355,020 

228,425 

439,917 

4,402,785 

292,321 

82,907 

461,613 

320,652 

4,402,026 

168,701 

55,200 

1,480,405 

916,019 

105,502 

400,512 

  51,713,237 

4,859,357 

  56,572,594 

IRON MOUNTAIN 2020 FORM 10-K

21

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Part I

COUNTRY/STATE

International

Argentina

Armenia

Australia

Austria

Belarus

Belgium

Brazil

Bulgaria

Chile
China Mainland (including China - Hong Kong 
S.A.R., China-Taiwan and China-Macau S.A.R.)

Colombia

Croatia

Cyprus

Czech Republic

Denmark

England

Estonia

Eswatini

Finland

France

Germany

Greece

Hungary

India

Indonesia

Ireland

Kazakhstan

Latvia

Lesotho

Lithuania

Malaysia

Mexico

The Netherlands

Northern Ireland

New Zealand

Norway

Peru

Philippines

Poland

Romania

Russia

Scotland

Serbia

Singapore

Slovakia

South Africa

South Korea

Spain

Sweden

Switzerland

Thailand

Turkey

Ukraine

United Arab Emirates

Total International

Total

22

IRON MOUNTAIN 2020 FORM 10-K

LEASED

OWNED

TOTAL

NUMBER

SQUARE FEET

NUMBER

SQUARE FEET

NUMBER

SQUARE FEET

4 

3 

44 

3 

4 

4 

42 

2 

8 

45 

24 

1 

2 

7 

3 

59 

1 

3 

3 

33 

14 

4 

7 

75 

3 

5 

4 

2 

2 

2 

8 

10 

9 

3 

6 

5 

4 

9 

19 

7 

44 

— 

3 

6 

5 

17 

8 

31 

6 

11 

3 

8 

10 

6 

225,334 

13,712 

  3,004,241 

92,296 

18,472 

202,106 

  2,854,580 

154,204 

295,030 

  1,878,851 

938,325 

36,737 

51,118 

152,889 

161,361 

  2,969,416 

38,861 

6,997 

95,896 

  2,111,261 

690,283 

291,273 

350,898 

  3,211,253 

85,423 

133,153 

46,482 

58,710 

4,736 

60,543 

443,149 

478,471 

602,564 

129,083 

413,959 

194,321 

63,949 

338,040 

796,561 

412,214 

  1,743,914 

— 

98,876 

297,581 

173,792 

483,181 

257,233 

766,667 

759,793 

283,104 

205,827 

675,751 

208,050 

314,628 

651 

  30,375,149 

  1,167 

  66,908,096 

  4 

  — 

  2 

  1 

  — 

  1 

  7 

  — 

  10 

  1 

  — 

  1 

  2 

  — 

  — 

  23 

  — 

  — 

  — 

  12 

  2 

  — 

  — 

  — 

  1 

  3 

  — 

  — 

  — 

  — 

  — 

  8 

  3 

  — 

  — 

  — 

  10 

  — 

  — 

  — 

  — 

  4 

  — 

  3 

  — 

  — 

  — 

  5 

  — 

  — 

  2 

  — 

  — 

  — 

 105 

 281 

298,864 

— 

33,845 

30,000 

— 

104,391 

324,655 

— 

376,183 

20,518 

— 

36,447 

46,246 

— 

— 

  1,175,907 

— 

— 

— 

936,486 

93,226 

— 

— 

— 

37,674 

158,558 

— 

— 

— 

— 

— 

585,885 

102,199 

— 

— 

— 

433,770 

— 

— 

— 

— 

375,294 

— 

345,056 

— 

— 

— 

170,707 

— 

— 

105,487 

— 

— 

— 

8 

3 

46 

4 

4 

5 

49 

2 

18 

46 

24 

2 

4 

7 

3 

82 

1 

3 

3 

45 

16 

4 

7 

75 

4 

8 

4 

2 

2 

2 

8 

18 

12 

3 

6 

5 

14 

9 

19 

7 

44 

4 

3 

9 

5 

17 

8 

36 

6 

11 

5 

8 

10 

6 

524,198 

13,712 

3,038,086 

122,296 

18,472 

306,497 

3,179,235 

154,204 

671,213 

1,899,369 

938,325 

73,184 

97,364 

152,889 

161,361 

4,145,323 

38,861 

6,997 

95,896 

3,047,747 

783,509 

291,273 

350,898 

3,211,253 

123,097 

291,711 

46,482 

58,710 

4,736 

60,543 

443,149 

1,064,356 

704,763 

129,083 

413,959 

194,321 

497,719 

338,040 

796,561 

412,214 

1,743,914 

375,294 

98,876 

642,637 

173,792 

483,181 

257,233 

937,374 

759,793 

283,104 

311,314 

675,751 

208,050 

314,628 

  5,791,398 

  25,831,045 

  756 

  1,448 

  36,166,547 

  92,739,141 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Part I

The leased facilities typically have initial lease terms of five to 10 years with one or more renewal options. In addition, some of the 
leases contain either a purchase option or a right of first refusal upon the sale of the property. We believe that the space available 
in our facilities is adequate to meet our current needs, although future growth may require that we lease or purchase additional real 
property.

Our total building utilization and total racking utilization by region as of December 31, 2020 in Records Management and Data 
Management are as follows: 

REGION

North America

Europe

Latin America

Asia

Total

RECORDS MANAGEMENT(1)

DATA MANAGEMENT

BUILDING
UTILIZATION

RACKING
UTILIZATION

BUILDING
UTILIZATION

RACKING
UTILIZATION

83%

83%

87%

86%

84%

90%

91%

91%

93%

91%

85%

49%

76%

66%

75%

97%

74%

81%

72%

90%

(1) Total building utilization and total racking utilization for Records Management includes the utilization for GDS and Consumer Storage.

See Note 2.i. to Notes to Consolidated Financial Statements included in this Annual Report for information regarding our minimum 
annual lease commitments as a lessee.

See Schedule III—Schedule of Real Estate and Accumulated Depreciation in this Annual Report for information regarding the cost, 
accumulated depreciation and encumbrances associated with our owned real estate.

The following table sets forth a summary of the lease expirations for leases in place related to our Global Data Center Business, for 
which we are the lessor, as of December 31, 2020. The information set forth in the table assumes that tenants exercise no renewal 
options and all early termination rights. 

YEAR

2021

2022

2023

2024

2025

2026

2027

Thereafter

Total

NUMBER OF 
LEASES EXPIRING

TOTAL MEGAWATTS
EXPIRING

PERCENTAGE
OF TOTAL 
MEGAWATTS
EXPIRING

ANNUALIZED
TOTAL CONTRACT
RENT EXPIRING 
(IN THOUSANDS)

PERCENTAGE OF
TOTAL CONTRACT 
VALUE ANNUALIZED
RENT

594 

320 

261 

81 

48 

14 

3 

19 

1,340 

18.1 

17.6 

18.7 

8.9 

11.6 

7.6 

6.8 

41.1 

130.4 

 13.9 % $ 

 13.5 %  

 14.4 %  

 6.8 %  

 8.9 %  

 5.8 %  

 5.2 %  

 31.5 %  

 100.0 % $ 

57,614 

46,544 

50,762 

22,497 

25,593 

15,683 

6,944 

59,851 

285,488 

 20.2 %

 16.3 %

 17.8 %

 7.9 %

 9.0 %

 5.5 %

 2.4 %

 20.9 %

 100.0 %

ITEM 3. LEGAL PROCEEDINGS.

We are involved in litigation from time to time in the ordinary course of business. A portion of the defense and/or settlement costs 
associated with such litigation is covered by various commercial liability insurance policies purchased by us and, in limited cases, 
indemnification from third parties. In the opinion of management, no material legal proceedings are pending to which we, or any of 
our properties, are subject. 

ITEM 4. MINE SAFETY DISCLOSURES.

None.

IRON MOUNTAIN 2020 FORM 10-K

23

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

PART II

ITEM 5. MARKET FOR REGISTRANT'S COMMON 
EQUITY, RELATED STOCKHOLDER MATTERS AND 
ISSUER PURCHASES OF EQUITY SECURITIES.

Our common stock is traded on the NYSE under the symbol “IRM". The closing price of our common stock on the NYSE on 
February 19, 2021 was $32.17. As of February 19, 2021, there were 8,071 holders of record of our common stock. See Note 8 to 
Notes to Consolidated Financial Statements included in this Annual Report for additional information on dividends declared on our 
common stock. 

UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF 
PROCEEDS

We did not sell any unregistered equity securities during the three months ended December 31, 2020, nor did we repurchase any 
shares of our common stock during the three months ended December 31, 2020.

ITEM 6. [RESERVED.]

ITEM 7. MANAGEMENT'S DISCUSSION AND 
ANALYSIS OF FINANCIAL CONDITION AND 
RESULTS OF OPERATIONS.

The following discussion should be read in conjunction with the Consolidated Financial Statements and Notes thereto and the other 
financial and operating information included elsewhere in this Annual Report.

This discussion contains “forward-looking statements” as that term is defined in the Private Securities Litigation Reform Act of 1995 
and in other securities laws. See “Cautionary Note Regarding Forward-Looking Statements” on page iii of this Annual Report and 
“Item 1A. Risk Factors” beginning on page 8 of this Annual Report.

IRON MOUNTAIN 2020 FORM 10-K

25

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Part II

OVERVIEW

COVID-19

In March 2020, the World Health Organization declared COVID-19 a pandemic. This resulted in U.S. federal, state and local and foreign 
governments and private entities mandating various restrictions, including travel restrictions, restrictions on public gatherings and stay-at-home 
orders and advisories. In response, we temporarily closed certain of our offices and facilities across the world and implemented certain travel 
restrictions for our employees. 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 56 countries and no single customer 
accounting for more than 1% of our revenue during the year ended December 31, 2020, COVID-19 is a global pandemic impacting numerous 
industries and geographies. While we do not currently believe that the implications of the COVID-19 pandemic have had a material adverse 
impact on our ability to collect our accounts receivable, global economic conditions related to the COVID-19 pandemic may have a material 
adverse effect on our customers, which could impact our future ability to collect our accounts receivable. We continue to monitor the credit 
worthiness of our customers and customer payment trends, as well as the related impact on our liquidity.

We have taken certain actions during the year ended December 31, 2020 to manage our costs and capital expenditures, including, but not 
limited to: (i) the termination of nearly all of our temporary and contract workers; (ii) reductions in our full-time and part-time work forces; (iii) 
temporary furloughs, reduced hours or other temporary reduction measures; (iv) the deferral of certain previously planned non-essential capital 
investments; and (v) the implementation of a temporary freeze on future acquisitions. We can provide no assurance that the cost savings 
measures we have taken, or may take in future periods, will be sufficient to offset any future service level declines, and we continue to evaluate 
the need for these cost saving measures and additional cost saving measures as additional information regarding the COVID-19 pandemic and 
the related economic downturn becomes known. We have incurred certain costs due to the COVID-19 pandemic which are direct, incremental 
and not expected to recur once the pandemic ends, which include the purchase of personal protective equipment for our employees and 
incremental cleaning costs of our facilities, among other direct costs. We have excluded these costs in calculating our various non-GAAP 
measures as described below.

PROJECT SUMMIT

Compelling Adjusted EBITDA Benefits

~$375M

Expected annual run-rate
benefits realized exiting 2021

$165M

Benefits delivered in 2020

Implementation Details
• Project Summit began in Q4 2019 and is expected to be 

substantially completed by the end of 2021
• Cost to implement is estimated to be ~$450M

In October 2019, we announced Project Summit, our global program designed to better position us for future growth and 
achievement of our strategic objectives. We expanded Project Summit during the first quarter of 2020 to include additional 
opportunities to streamline our business and operations, as well as accelerated the timing of certain opportunities previously 
identified. Such opportunities include leveraging new technology solutions to enable us to modernize our service delivery model 
and more efficiently utilize our fleet, labor and real estate. 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 December 31, 2020, we have completed approximately 70% of our planned workforce reductions.

26

IRON MOUNTAIN 2020 FORM 10-K

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Part II

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. Including 
the expanded scope of Project Summit, 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.

2020

Exiting 2021

$165 million

$375 million
(expected)

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 (in millions) 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 December 31, 2020, for the year 
ended December 31, 2020 and for the year ended December 31, 2019:

From the Inception of
Project Summit through
December 31, 2020

For the Year Ended
December 31, 2020

For the Year Ended
December 31, 2019

We have also incurred approximately $10.1 million in capital expenditures related to Project Summit from the inception of Project 
Summit through December 31, 2020. 

DIVESTMENTS

In March 2019, we contributed our customer contracts and certain intellectual property and other assets used by us to operate our 
consumer storage business in the United States and Canada (the “IM Consumer Storage Assets”) and approximately $20.0 million 
in cash (gross of certain transaction expenses) (the “Cash Contribution”) to the MakeSpace JV (the “Consumer Storage 
Transaction”), established by us and MakeSpace. Upon the closing of the Consumer Storage Transaction on March 19, 2019, the 
MakeSpace JV owned (i) the IM Consumer Storage Assets, (ii) the Cash Contribution and (iii) the customer contracts, intellectual 
property and certain other assets used by MakeSpace to operate its consumer storage business in the United States. As part of the 
Consumer Storage Transaction, we received an initial equity interest of approximately 34% in the MakeSpace JV (the “MakeSpace 
Investment”). In the second quarter of 2020, we committed to participate in a round of equity funding for the MakeSpace JV 
whereby we agreed to contribute $36.0 million of the $45.0 million being raised in installments beginning in May 2020 through 
October 2021. At December 31, 2020, we owned approximately 39% of the outstanding equity in the MakeSpace JV.

As described in Note 4 to Notes to Consolidated Financial Statements included in this Annual Report, we have concluded that the 
divestment of the IM Consumer Storage Assets in the Consumer Storage Transaction does not meet the criteria to be reported as 
discontinued operations in our consolidated financial statements. In connection with the Consumer Storage Transaction and the 
MakeSpace Investment, we also entered into a storage and service agreement with the MakeSpace JV to provide certain storage 
and related services to the MakeSpace JV (the “MakeSpace Agreement”). Revenues and expenses associated with the 
MakeSpace Agreement are presented as a component of our Global RIM Business segment. During the years ended December 
31, 2020 and 2019, we recognized revenue of approximately $33.6 million and $22.5 million, respectively, associated with the 
MakeSpace Agreement.

As a result of the Consumer Storage Transaction, we recorded a gain on sale of approximately $4.2 million to Other expense 
(income), net, in the first quarter of 2019, representing the excess of the fair value of the consideration received over the sum of (i) 
the carrying value of our consumer storage operations and (ii) the Cash Contribution.

IRON MOUNTAIN 2020 FORM 10-K

27

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Part II

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. These changes impacted the results reported for these non-GAAP measures for fiscal 
years 2019 and 2018. However, these changes did not materially impact the discussion to what was included in previous filings. All 
prior periods have been recast to conform to these changes. See “Item 7. Management’s Discussion and Analysis of Financial 
Condition and Results of Operations” in our Annual Report on Form 10-K for the year ended December 31, 2019 for a comparison 
of 2019 to 2018.

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 to be relatively stable in the near term. We expect our total organic 
storage rental revenue growth rate for 2021 to be approximately 2% to 4%.

• Our organic service revenue during 2020 was significantly impacted by the COVID-19 pandemic, with declines primarily due to 
decreases in our service activity, particularly in regions where governments have imposed restrictions on our customers’ non-
essential business operations. The severity of future service level declines is uncertain and is dependent, in part, on the duration 
and severity of the COVID-19 pandemic, the resulting governmental and business actions and the duration and strength of any 
ensuing economic recovery that may follow, particularly within the markets in which we operate and among our customers.

Our revenues consist of storage rental revenues as well as service revenues and are reflected net of sales and value-added taxes. 
Storage rental revenues, which are considered a key driver of financial performance for the storage and information management 
services industry, consist primarily of recurring periodic rental charges related to the storage of materials or data (generally on a per 
unit basis) that are typically retained by customers for many years and revenues associated with our data center operations. 
Service revenues include charges for related service activities, the most significant of which include: (1) the handling of records, 
including the addition of new records, temporary removal of records from storage, refiling of removed records, customer termination 
and permanent withdrawal fees, project revenues, and courier operations, consisting primarily of the pickup and delivery of records 
upon customer request; (2) destruction services, consisting primarily of secure shredding of sensitive documents and the 
subsequent sale of shredded paper for recycling, the price of which can fluctuate from period to period; and (3) digital solutions, 
including the scanning, imaging and document conversion services of active and inactive records, and consulting services. Our 
service revenue growth has been negatively impacted by declining activity rates as stored records are becoming less active. While 
customers continue to store their records and tapes with us, they are less likely than they have been in the past to retrieve records 
for research and other purposes, thereby reducing service activity levels.

BREAKDOWN OF REVENUES

28

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Part II

Cost of sales (excluding depreciation and amortization) consists primarily of labor, including wages and benefits for field personnel, 
facility occupancy costs (including rent and utilities), transportation expenses (including vehicle leases and fuel), other product cost 
of sales and other equipment costs and supplies. Of these, labor and facility occupancy costs are the most significant. Selling, 
general and administrative expenses consist primarily of wages and benefits for management, administrative, IT, sales, account 
management and marketing personnel, as well as expenses related to communications and data processing, travel, professional 
fees, bad debts, training, office equipment and supplies. 

Cost of sales (excluding depreciation and amortization) and Selling, general and administrative expenses for the year ended 
December 31, 2020 consists of the following:

COST OF SALES

SELLING, GENERAL AND ADMINISTRATIVE EXPENSES

Trends in facility occupancy costs are impacted by:

•
•

•

•

the total number of facilities we occupy;
the mix of properties we own versus properties we lease;
fluctuations in per square foot occupancy costs; and
the levels of utilization of these properties.

Trends in total wages and benefits in dollars and as a percentage of total consolidated revenue are influenced by:

• changes in headcount and compensation levels;
• achievement of incentive compensation targets;
• workforce productivity; and
• variability in costs associated with medical insurance and workers’ compensation.

The expansion of our international businesses has impacted the major cost of sales components and selling, general and 
administrative expenses.

• Our international operations are more labor intensive relative to revenue than our operations in North America and, 

therefore, labor costs are a higher percentage of international operational revenue.

• The overhead structure of our expanding international operations has generally not achieved the same level of overhead 

leverage as our North American operations, which may result in an increase in selling, general and administrative expenses 
as a percentage of consolidated revenue as our international operations become a larger percentage of our consolidated 
results.

Our depreciation and amortization charges result primarily from depreciation related to storage systems, which include racking 
structures, buildings, building and leasehold improvements and computer systems hardware and software. Amortization relates 
primarily to customer relationship intangible assets, contract fulfillment costs and data center lease-based intangible assets. Both 
depreciation and amortization are impacted by the timing of acquisitions. 

IRON MOUNTAIN 2020 FORM 10-K

29

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Part II

Our consolidated revenues and expenses are subject to the net effect of foreign currency translation related to our operations 
outside the United States. It is difficult to predict the future fluctuations of foreign currency exchange rates and how those 
fluctuations will impact our Consolidated Statements of Operations. As a result of the relative size of our international operations, 
these fluctuations may be material on individual balances. Our revenues and expenses from our international operations are 
generally denominated in the local currency of the country in which they are derived or incurred. Therefore, the impact of currency 
fluctuations on our operating income and operating margin is partially mitigated. In order to provide a framework for assessing how 
our underlying businesses performed excluding the effect of foreign currency fluctuations, we compare the percentage change in 
the results from one period to another period in this report using constant currency presentation. The constant currency growth 
rates are calculated by translating the 2019 results at the 2020 average exchange rates and the 2018 results at the 2019 average 
exchange rates. Constant currency growth rates are a non-GAAP measure.

30

IRON MOUNTAIN 2020 FORM 10-K

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The following table is a comparison of underlying average exchange rates of the foreign currencies that had the most significant 
impact on our United States dollar-reported revenues and expenses:

Australian dollar

Brazilian real

British pound sterling

Canadian dollar

Euro

Australian dollar

Brazilian real
British pound sterling

Canadian dollar

Euro

PERCENTAGE OF 
UNITED STATES DOLLAR-
REPORTED REVENUE FOR THE
YEAR ENDED DECEMBER 31,

AVERAGE EXCHANGE RATES
FOR THE YEAR ENDED
DECEMBER 31,

2020

2019

2020

2019

PERCENTAGE
STRENGTHENING /
(WEAKENING) OF
FOREIGN CURRENCY

 3.2 %

 1.9 %

 6.0 %

 5.4 %

 7.5 %

 3.4 % $ 

 2.6 % $ 

 6.4 % $ 

 5.7 % $ 

 7.4 % $ 

0.690  $ 

0.196  $ 

1.283  $ 

0.746  $ 

1.141  $ 

0.695 

0.254 

1.277 

0.754 

1.120 

 (0.7) %

 (22.8) %

 0.5 %

 (1.1) %

 1.9 %

PERCENTAGE OF 
UNITED STATES DOLLAR-
REPORTED REVENUE FOR THE
YEAR ENDED DECEMBER 31,

AVERAGE EXCHANGE RATES
FOR THE YEAR ENDED
DECEMBER 31,

2019

2018

2019

2018

PERCENTAGE
STRENGTHENING /
(WEAKENING) OF
FOREIGN CURRENCY

 3.4 %

 2.6 %
 6.4 %

 5.7 %

 7.4 %

 3.7 % $ 

 2.9 % $ 
 6.6 % $ 

 5.9 % $ 

 7.3 % $ 

0.695  $ 

0.254  $ 
1.277  $ 

0.754  $ 

1.120  $ 

0.748 

0.276 
1.335 

0.772 

1.182 

 (7.1) %

 (8.0) %
 (4.3) %

 (2.3) %

 (5.2) %

The percentage of United States dollar-reported revenues for all other foreign currencies was 13.8%, 12.7% and 12.6% for the 
years ended December 31, 2020, 2019 and 2018, respectively.

NON-GAAP MEASURES

ADJUSTED EBITDA

During the fourth quarter of 2020, we changed our definition of Adjusted EBITDA to (a) exclude stock-based compensation 
expense and (b) include our share of Adjusted EBITDA from our unconsolidated joint ventures. We now define Adjusted EBITDA as 
income (loss) from continuing operations 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

• Significant Acquisition Costs

• Restructuring Charges

•

•

Intangible impairments

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

• Other expense (income), net

• Stock-based compensation expense

• COVID-19 Costs (as defined below)

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.

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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 also 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, income (loss) from continuing operations, net income (loss) or cash flows from 
operating activities from continuing operations (as determined in accordance with GAAP). 

RECONCILIATION OF INCOME (LOSS) FROM CONTINUING OPERATIONS TO ADJUSTED EBITDA (IN 
THOUSANDS):

Income (Loss) from Continuing Operations

$ 

343,096  $ 

268,211  $ 

367,558 

YEAR ENDED DECEMBER 31,

2020

2019

2018

Add/(Deduct):

Interest expense, net

Provision (benefit) for income taxes

Depreciation and amortization

Significant Acquisition Costs

Restructuring Charges

Intangible impairments
(Gain) loss on disposal/write-down of property, plant and equipment, net (including 
real estate)
Other expense (income), net, excluding our share of losses (gains) from our 
unconsolidated joint ventures(1)
Stock-based compensation expense(2)
COVID-19 Costs(3)
Our share of Adjusted EBITDA reconciling items from our unconsolidated joint 
ventures

418,535 

29,609 

652,069 

— 

194,396 

23,000 

419,298 

59,931 

658,201 

13,293 

48,597 

— 

409,648 

42,753 

639,514 

50,665 

— 

— 

(363,537) 

(63,824) 

(73,622) 

133,611 

34,272 

9,285 

1,385 

25,720 

36,194 

— 

3,388 

(11,867) 

31,014 

— 

3,261 

Adjusted EBITDA

$ 

1,475,721  $ 

1,469,009  $ 

1,458,924 

(1)

Includes foreign currency transaction losses (gains), net, debt extinguishment expense and other, net. See Note 2.t. to Notes to Consolidated Financial Statements 
included in this Annual Report for additional information regarding the components of Other expense (income), net.

(2) Stock-based compensation expense related to Project Summit is included within Restructuring Charges for the years ended December 31, 2020 and 2019.

(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.

ADJUSTED EPS

During the fourth quarter of 2020, we changed our definition of Adjusted EPS to (a) exclude stock-based compensation expense 
and (b) include our share of adjusted losses (gains) from our unconsolidated joint ventures. We now define Adjusted EPS as 
reported earnings per share fully diluted from continuing operations (inclusive of our share of adjusted losses (gains) from our 
unconsolidated joint ventures) and excluding certain items, specifically:

EXCLUDED

• Significant Acquisition Costs

• Restructuring Charges

• Other expense (income), net

• Stock-based compensation expense

•

•

Intangible impairments

• COVID-19 Costs

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

• Tax impact of reconciling items and discrete 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.

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Part II

RECONCILIATION OF REPORTED EPS—FULLY DILUTED FROM CONTINUING OPERATIONS TO ADJUSTED 
EPS—FULLY DILUTED FROM CONTINUING OPERATIONS:

Reported EPS—Fully Diluted from Continuing Operations

$ 

1.19  $ 

0.93  $ 

1.28 

YEAR ENDED DECEMBER 31,

2020

2019

2018

Add/(Deduct): 

Significant Acquisition Costs

Restructuring Charges

Intangible impairments

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

Other expense (income), net, excluding our share of losses (gains) from our 
unconsolidated joint ventures
Stock-based compensation expense(1)
COVID-19 Costs(2)
Tax impact of reconciling items and discrete tax items(3)
Adjusted EPS—Fully Diluted from Continuing Operations(4)

— 

0.67 

0.08 

0.05 

0.17 

— 

(1.26) 

(0.22) 

0.46 

0.12 

0.03 

0.09 

0.13 

— 

$ 

(0.11) 

1.19  $ 

(0.03) 

1.11  $ 

0.18 

— 

— 

(0.25) 

(0.04) 

0.11 

— 

(0.10) 

1.16 

(1) Stock-based compensation expense related to Project Summit is included within Restructuring Charges for the years ended December 31, 2020 and 2019.

(2) These costs include the purchase of personal protective equipment for our employees and incremental cleaning costs of our facilities, among other direct costs.

(3) The difference between our effective tax rate and our structural tax rate (or adjusted effective tax rate) for the years ended December 31, 2020, 2019, and 2018 is 
primarily due to (i) the reconciling items above, which impact our reported income (loss) from continuing operations before provision (benefit) for income taxes but 
have an insignificant impact on our reported 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 years ended December 31, 2020, 2019 and 2018 was 15.1%, 17.6%, and 17.9%, respectively.

(4) Columns may not foot due to rounding.

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, gains on sale of real estate, net of tax, and amortization of data center leased-
based intangibles. Consistent with Nareit's definition of FFO, during the fourth quarter of 2020, we began 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)"). During the fourth quarter of 2020, 
we changed our definition of FFO (Normalized) to exclude stock-based compensation expense and adjust for our share of FFO 
(Normalized) reconciling items from our unconsolidated joint ventures. 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
• Significant Acquisition Costs

• Restructuring Charges

•

Intangible impairments

• Stock-based compensation expense

• COVID-19 Costs

• Real estate financing lease depreciation

• Loss (gain) on disposal/write-down of property, plant and 

• Tax impact of reconciling items and discrete tax items

equipment, net (excluding real estate)

• Other expense (income), net

•

(Income) loss from discontinued operations, net of tax

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RECONCILIATION OF NET INCOME (LOSS) TO FFO (NAREIT) AND FFO (NORMALIZED) (IN THOUSANDS):

Net Income (Loss)

Add/(Deduct):

Real estate depreciation(1)
Gain on sale of real estate, net of tax(2)
Data center lease-based intangible assets amortization(3)
Our share of FFO (Nareit) reconciling items from our unconsolidated joint ventures

FFO (Nareit)

Add/(Deduct):

Significant Acquisition Costs

Restructuring Charges

Intangible impairments

Loss (gain) on disposal/write-down of property, plant and equipment, net (excluding 
real estate)
Other expense (income), net, excluding our share of losses (gains) from our 
unconsolidated joint ventures(4)
Stock-based compensation expense(5)
COVID-19 Costs(6)

Real estate financing lease depreciation
Tax impact of reconciling items and discrete tax items(7)
(Income) loss from discontinued operations, net of tax(8)

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

YEAR ENDED DECEMBER 31,

2020

2019

2018

$ 

343,096  $ 

268,315  $ 

355,131 

298,943 

(365,709) 

42,637 

— 

318,967 

— 

194,396 

23,000 

303,415 

(99,194) 

46,696 

1,284 

520,516 

13,293 

48,597 

— 

284,804 

(55,328) 

43,061 

1,391 

629,059 

50,665 

— 

— 

2,523 

40,763 

(9,818) 

133,611 

34,272 

9,285 

13,801 

(31,825) 

— 

(38) 

25,720 

36,194 

— 

13,364 

(13,095) 

(104) 

(11,867) 

31,014 

— 

13,650 

(38,365) 

12,427 

148 

248 

FFO (Normalized)

$ 

697,992  $ 

685,396  $ 

677,013 

(1)

Includes depreciation expense related to owned real estate assets (land improvements, buildings, building improvements, leasehold improvements and racking), 
excluding depreciation related to real estate financing leases.

(2) Tax expense associated with the gain on sale of real estate for the years ended December 31, 2020, 2019, and 2018, was $0.4 million, $5.4 million, and $8.5 million, 

respectively.

(3)

(4)

Includes amortization expense for Data Center In-Place Lease Intangible Assets and Data Center Tenant Relationship Intangible Assets as defined in Note 2.l. to 
Notes to Consolidated Financial Statements included in this Annual Report.

Includes foreign currency transaction losses (gains), net, debt extinguishment expense and other, net. See Note 2.t. to Notes to Consolidated Financial Statements 
included in this Annual Report for additional information regarding the components of Other expense (income), net.

(5) Stock-based compensation expense related to Project Summit is included within Restructuring Charges for the years ended December 31, 2020 and 2019.

(6) These costs include the purchase of personal protective equipment for our employees and incremental cleaning costs of our facilities, among other direct costs.

(7) Represents the tax impact of (i) the reconciling items above, which impacts our reported income (loss) from continuing operations before provision (benefit) for 

income taxes but has an insignificant impact on our reported provision (benefit) for income taxes and (ii) other discrete tax items. Discrete tax items resulted in a 
(benefit) provision for income taxes of $(16.8) million, $(1.5) million and $(27.7) million for the years ended December 31, 2020, 2019 and 2018, respectively.

(8) Net of tax (benefit) provision of $0.0 million, $0.0 million and $(0.1) million for the years ended December 31, 2020, 2019 and 2018, respectively.

CRITICAL ACCOUNTING ESTIMATES

Our discussion and analysis of our financial condition and results of operations are based upon our 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. The following should be read in conjunction with Note 2 to Notes to Consolidated 
Financial Statements included in this Annual Report, which provides a summary of our significant accounting policies. Our critical 
accounting estimates include the following, which are listed in no particular order: 

34

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Table of Contents

REVENUE RECOGNITION 

Part II

Revenue is recognized when or as control of promised goods or services is transferred to the customer, in an amount that reflects 
the consideration we expect to be entitled to in exchange for those goods or services. See Note 2.r. to Notes to Consolidated 
Financial Statements included in this Annual Report for additional details on our revenue recognition policies. Revenue for all our 
lines of business, with the exception of storage revenues in our Global Data Center Business (which is subject to leasing 
guidance), is recognized under Accounting Standards Update No. 2014-09, Revenue from Contracts with Customers (Topic 606) 
(“ASU 2014-09”), the application of which requires that we make estimates and judgements that may affect the amount and timing 
of revenue we recognize. 

We have determined that the majority of our contracts contain series performance obligations which qualify to be recognized under 
a practical expedient available in ASU 2014-09 known as the “right to invoice.” This determination allows variable consideration in 
such contracts to be allocated to and recognized in the period to which the consideration relates, which is typically the period in 
which it is billed, rather than requiring estimation of variable consideration at the inception of the contract.  

From time to time, we make payments to entities that are also customers under a revenue contract. These payments are 
comprised of Customer Inducements (as defined in Note 2.l. to Notes to Consolidated Financial Statements included in this Annual 
Report). Consideration payable to a customer is reviewed as part of the transaction price. If the payment to the customer does not 
represent payment for a distinct service, revenue is recognized only up to the amount of consideration remaining after customer 
payment obligations are considered.  

Contract Fulfillment Costs are amortized over a three year term, which we have determined is consistent with the transfer of the 
underlying performance obligations to which the assets relate. Different determinations on term length would result in differences in 
the amount and timing of amortization expense recognized.

ACCOUNTING FOR ACQUISITIONS

Part of our growth strategy has been to acquire businesses. The purchase price of each acquisition has been determined after due 
diligence of the target business, market research, strategic planning and the forecasting of expected future results and synergies. 
Estimated future results and expected synergies are subject to revisions as we integrate each acquisition and attempt to leverage 
resources. 

Accounting for acquisitions of a business has resulted in the capitalization of the cost in excess of the estimated fair value of the 
net assets acquired in each of these acquisitions as goodwill. We estimate the fair values of the assets acquired in each acquisition 
as of the date of acquisition and these estimates are subject to adjustment based on the final assessments of the fair value of 
intangible assets (primarily customer relationship and data center lease-based intangible assets), property, plant and equipment 
(primarily building, building improvements, leasehold improvements, data center infrastructure and racking structures), operating 
leases, contingencies and income taxes (primarily deferred income taxes). See Note 3 to Notes to Consolidated Financial 
Statements included in this Annual Report for a description of recent acquisitions. 

Determining the fair values of the net assets acquired requires management’s judgment and often involves the use of assumptions 
with respect to future cash inflows and outflows, discount rates and market data, among other items. As it relates to our data center 
acquisitions, the fair values of the net assets acquired requires management’s judgment and often involves the use of assumptions 
with respect to (i) certain economic costs (as described more fully in Note 2.l. to Notes to Consolidated Financial Statements 
included in this Annual Report) avoided by acquiring a data center operation with active tenants that would have otherwise been 
incurred if the data center operation was purchased vacant, (ii) market rental rates and (iii) expectations of lease renewals and 
extensions. Due to the inherent uncertainty of future events, actual values of net assets acquired could be different from our 
estimated fair values and could have a material impact on our financial statements.

Of the net assets acquired in our acquisitions, the fair value of owned buildings, including building improvements, customer 
relationship and data center lease-based intangible assets, racking structures and operating leases are generally the most 
common and most significant. For significant acquisitions or acquisitions involving new markets or new products, we generally use 
third parties to assist us in estimating the fair value of owned buildings, including building improvements, customer relationship and 
lease-based intangible assets and market rental rates for acquired operating leases. For acquisitions that are not significant or do 
not involve new markets or new products, we generally use third parties to assist us in estimating the fair value of acquired owned 
buildings, including building improvements, and market rental rates for acquired operating leases. When not using third party 
appraisals of the fair value of acquired net assets, the fair value of acquired customer relationship intangible assets, above and 
below market in-place operating leases, and racking structures is determined internally. The fair value of acquired racking 
structures is determined internally by taking current estimated replacement cost at the date of acquisition for the quantity of racking 
structures acquired, discounted to take into account the quality (e.g. age, material and type) of the racking structures. We use 
discounted cash flow models to determine the fair value of customer relationship assets, which requires a significant amount of 
judgment by management, including estimating expected lives of the relationships, expected future cash flows and discount rates. 
We determine the fair value of tangible data center assets using an estimated replacement cost at the date of acquisition, then 
discounting for age, economic and functional obsolescence.

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Our estimates of fair value are based upon assumptions believed to be reasonable at that time but which are inherently uncertain 
and unpredictable. Assumptions may be incomplete or inaccurate, and unanticipated events and circumstances may occur, which 
may affect the accuracy of such assumptions. Total property, plant and equipment and intangible assets acquired in our 2020 
acquisitions were approximately $52.0 million and $79.1 million, respectively.

IMPAIRMENT OF TANGIBLE AND INTANGIBLE ASSETS 

ASSETS SUBJECT TO DEPRECIATION OR AMORTIZATION 

We review long-lived assets and all finite-lived intangible assets for impairment whenever events or changes in circumstances 
indicate the carrying amount of such assets may not be recoverable. Examples of events or circumstances that may be indicative 
of impairment include, but are not limited to:

• A significant decrease in the market price of an asset;

• A significant change in the extent or manner in which a long-lived asset is being used or in its physical condition;

• A significant adverse change in legal factors or in the business climate that could affect the value of the asset;

• An accumulation of costs significantly greater than the amount originally expected for the acquisition or construction of an asset;

• A current-period operating or cash flow loss combined with a history of operating or cash flow losses or a projection or forecast 

that demonstrates continuing losses associated with the use of a long-lived asset; and

• A current expectation that, more likely than not, an asset will be sold or otherwise disposed of significantly before the end of its 

previously estimated useful life.

If events indicate the carrying value of such assets may not be recoverable, recoverability of these assets is determined by 
comparing the sum of the forecasted undiscounted net cash flows of the operation to which the assets relate to their carrying 
amount. The operations are generally distinguished by the business segment and geographic region in which they operate. If it is 
determined that we are unable to recover the carrying amount of the assets, the long-lived assets are written down, on a pro rata 
basis, to fair value. Fair value is determined based on discounted cash flows or appraised values, depending upon the nature of the 
assets.

GOODWILL AND OTHER INDEFINITE-LIVED INTANGIBLE ASSETS NOT SUBJECT TO 
AMORTIZATION

Goodwill and intangible assets with indefinite lives are not amortized but are reviewed annually for impairment, or more frequently if 
impairment indicators arise. Other than goodwill, we currently have no intangible assets that have indefinite lives and which are not 
amortized. See Note 2.k. to Notes to Consolidated Financial Statements included in this Annual Report for additional details on our 
goodwill and other indefinite-lived intangible assets policies.  

We have selected October 1 as our annual goodwill impairment review date. We have performed our annual goodwill impairment 
review as of October 1, 2020, 2019 and 2018. We concluded that as of October 1, 2020, 2019 and 2018, goodwill was not 
impaired. 

During the first quarter of 2020, we concluded that we had a triggering event related to our Fine Arts reporting unit, requiring us to 
perform an interim goodwill impairment test. The primary factor contributing to our conclusion was the expected impact of the 
COVID-19 pandemic to this particular business and its customers and revenue sources, which caused us to believe it was more 
likely than not that the carrying value of our Fine Arts reporting unit exceeded its fair value. Therefore, we performed an interim 
goodwill impairment test for our Fine Arts reporting unit utilizing a discounted cash flow model, with updated assumptions on future 
revenues, operating expenditures and capital expenditures. We concluded that the fair value of our Fine Arts reporting unit was 
less than its carrying value, and, therefore, we recorded a $23.0 million impairment charge on the goodwill associated with this 
reporting unit during the first quarter of 2020. Factors that may impact these assumptions include, but are not limited to: (i) our 
ability to maintain, or grow, storage rental and service revenues in line with current expectations and (ii) our ability to manage our 
fixed and variable costs in line with potential future revenue declines.

Our reporting units at which level we performed our goodwill impairment analysis as of October 1, 2020 were as follows:

• North American Records and 

Information Management reporting unit 
("North America RIM")

• Australia and New Zealand Records and 
Information Management reporting unit 
("ANZ RIM")

• Europe Records and Information 

• Asia Records and Information 

• Fine Arts

• Entertainment Services

• Technology Escrow Services

Management reporting unit ("Europe 
RIM")

• Latin America Records and Information 
Management reporting unit ("Latin 
America RIM")

Management reporting unit ("Asia RIM")

• Global Data Center

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See Note 2.k. to Notes to Consolidated Financial Statements included in this Annual Report for a description of our reporting units.

Based on our goodwill impairment analysis as of October 1, 2020, our reporting units that had estimated fair values exceeding their 
carrying values by greater than 20% represented approximately $4,120.6 million, or 90.4%, of our consolidated goodwill balance at 
December 31, 2020. Our Global Data Center reporting unit had an estimated fair value that exceeded its carrying value by less 
than 20%. The reporting unit represented approximately $437.0 million, or 9.6%, of our consolidated goodwill balance at 
December 31, 2020. The following is a summary of the Global Data Center reporting unit including the goodwill balance (in 
thousands), percentage by which the fair value of the reporting unit exceeded its carrying value, and certain key assumptions used 
by us in determining the fair value of the reporting unit as of October 1, 2020:

PERCENTAGE BY
WHICH THE FAIR VALUE
OF THE REPORTING
UNIT EXCEEDED THE
REPORTING UNIT
CARRYING VALUE AS OF
OCTOBER 1, 2020

GOODWILL
BALANCE AT
OCTOBER 1,
2020

KEY ASSUMPTIONS IN THE FAIR VALUE OF REPORTING UNIT
MEASUREMENT AS OF OCTOBER 1, 2020

AVERAGE ANNUAL
CONTRIBUTION
MARGIN USED IN
DISCOUNTED
CASH FLOW

AVERAGE
ANNUAL CAPITAL
EXPENDITURES AS
PERCENTAGE OF
REVENUE(1)

TERMINAL
GROWTH
RATE(2)

DISCOUNT
RATE

REPORTING UNIT

Global Data Center

$ 

430,594 

 8.5 %

 8.0 %

 43.7 %

 27.8 %

 3.0 %

(1)

(2)

For purposes of our goodwill impairment analysis, the term “capital expenditures” includes both growth investment and recurring capital expenditures. 

Terminal growth rates are applied in year 10 of our discounted cash flow analysis.

Reporting unit valuations have generally been determined using a combined approach based on the present value of future cash 
flows (the “Discounted Cash Flow Model”) and market multiples (the “Market Approach"). There are inherent uncertainties and 
judgments involved when determining the fair value of the reporting units for purposes of our annual goodwill impairment testing. 
The following includes supplemental information to the table above for the Global Data Center reporting unit where the estimated 
fair values exceeded its carrying value by less than 20% as of October 1, 2020. The success of this business and the achievement 
of certain key assumptions developed by management and used in the Discounted Cash Flow Model are contingent upon various 
factors including, but not limited to, (i) achieving growth from existing customers, (ii) sales to new customers, (iii) increased market 
penetration and (iv) accurately timing the capital investments related to expansions.

Our Global Data Center Business footprint spans nine markets in the United States: Denver, Colorado; Kansas City, Missouri; 
Boston, Massachusetts; Boyers, Pennsylvania; Manassas, Virginia; Edison, New Jersey; Columbus, Ohio; and Phoenix and 
Scottsdale, Arizona and four international markets: Amsterdam, London, Singapore and, through an unconsolidated joint venture, 
Frankfurt. We provide mission-critical data centers that are designed and operated to protect and ensure the continued operation of 
IT infrastructure for our customers. Data centers are highly specialized and secure assets that serve as centralized repositories of 
server, storage and network equipment. They are capital intensive and designed to provide the space, power, cooling and network 
connectivity necessary to efficiently operate mission-critical IT equipment. The demand for data center infrastructure is being driven 
by many factors, but most importantly by significant growth in data as well as an increased demand for outsourcing. In order to 
attract and retain customers, as well as sustain growth in our existing and new markets, we must have the capability to tailor our 
facilities and invest capital to meet the customers’ needs. Our estimate of fair value reflects the expected growth in each of our data 
center markets along with the corresponding capital investments required to meet demand. The business is primarily comprised of 
acquisitions completed in 2018 and late 2017; therefore, we would expect that the fair value of this reporting unit will closely 
approximate its carrying value.

Key factors that could reasonably be expected to have a negative impact on the estimated fair value of these reporting units and 
potentially result in impairment charges include, but are not limited to: (i) a deterioration in general economic conditions, (ii) 
significant adverse changes in regulatory factors or in the business climate, and (iii) adverse actions or assessment by regulators, 
all of which could result in adverse changes to the key assumptions used in valuing the reporting units. The inability to meet the 
assumptions used in the Discounted Cash Flow Model and Market Approach for each of the reporting units, or future adverse 
market conditions not currently known, could lead to a fair value that is less than the carrying value in any one of our reporting 
units. 

Reporting unit valuations have generally been determined using a combined approach based on the Discounted Cash Flow Model 
and Market Approach. The Discounted Cash Flow Model incorporates significant assumptions including future revenue growth 
rates, operating margins, discount rates and capital expenditures. The Market Approach requires us to make assumptions related 
to Adjusted EBITDA multiples. Changes in economic and operating conditions impacting these assumptions or changes in multiples 
could result in goodwill impairments in future periods. In conjunction with our annual goodwill impairment reviews, we reconcile the 
sum of the valuations of all of our reporting units to our market capitalization as of such dates.

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Although we believe we have sufficient historical and projected information available to us to test for goodwill impairment, it is 
possible that actual results could differ from the estimates used in our impairment tests. Of the key assumptions that impact the 
goodwill impairment test, the expected future cash flows and discount rate are among the most sensitive and are considered to be 
critical assumptions, as changes to these estimates could have an effect on the estimated fair value of each of our reporting units. 
We have assessed the sensitivity of these assumptions on each of our reporting units as of October 1, 2020. 

North America RIM, Europe
RIM, Latin America RIM, ANZ
RIM, Asia RIM, Fine Arts, 
Entertainment
Services and Technology
Escrow Services

We noted that, based on the estimated fair value of these reporting units determined as of 
October 1, 2020:

• a hypothetical decrease of 10% in the expected annual future cash flows of these reporting 
units, with all other assumptions unchanged, would have decreased the estimated fair value 
of these reporting units as of October 1, 2020 by a range of approximately 9.7% to 10.6% 
but would not, however, have resulted in the carrying value of any of these reporting units 
with goodwill exceeding their estimated fair value;

• a hypothetical increase of 100 basis points in the discount rate, with all other assumptions 
unchanged, would have decreased the estimated fair value of these reporting units as of 
October 1, 2020 by a range of approximately 4.6% to 10.7% but would not, however, have 
resulted in the carrying value of any of these reporting units with goodwill exceeding their 
estimated fair value.

Global Data Center

We noted that, as of October 1, 2020, the estimated fair value of the reporting unit:

• exceeds its carrying value by less than 20%.

Accordingly, any significant negative change in either the expected annual future cash flows of 
the reporting unit or the discount rate may result in the carrying value of the reporting unit 
exceeding its estimated fair value.

At December 31, 2020, no factors were identified that would alter the conclusions of our October 1, 2020 goodwill impairment 
analysis. In making this assessment, we considered a number of factors including operating results, business plans, anticipated 
future cash flows, transactions and marketplace data. There are inherent uncertainties related to these factors and our judgment in 
applying them to the analysis of goodwill impairment.

INCOME TAXES

As a REIT, we are generally permitted to deduct from our federal taxable income the dividends we pay to our stockholders. The 
income represented by such dividends is not subject to federal taxation at the entity level but is taxed, if at all, at the stockholder 
level. The income of our domestic TRSs, which hold our domestic operations that may not be REIT-compliant as currently operated 
and structured, is subject, as applicable, to federal and state corporate income tax. In addition, we and our subsidiaries continue to 
be subject to foreign income taxes in other jurisdictions in which we have business operations or a taxable presence, regardless of 
whether assets are held or operations are conducted through subsidiaries disregarded for federal income tax purposes or TRSs. 
We will also be subject to a separate corporate income tax on any gains recognized on the sale or disposition of any asset 
previously owned by a C corporation during a five-year period after the date we first owned the asset as a REIT asset that are 
attributable to "built-in gains" with respect to that asset on that date. We will also be subject to a built-in gains tax on our 
depreciation recapture recognized into income as a result of accounting method changes in connection with our acquisition 
activities. If we fail to remain qualified for taxation as a REIT, we will be subject to federal income tax at regular corporate income 
tax rates. Even if we remain qualified for taxation as a REIT, we may be subject to some federal, state, local and foreign taxes on 
our income and property in addition to taxes owed with respect to our TRS operations. In particular, while state income tax regimes 
often parallel the federal income tax regime for REITs, many states do not completely follow federal rules and some do not follow 
them at all. See Note 9 to Notes to Consolidated Financial Statements included in this Annual Report for additional details on our 
tax policies.

Accounting for income taxes requires the recognition of deferred tax assets and liabilities for the expected future tax consequences 
of temporary differences between the tax and financial reporting bases of assets and liabilities and for loss and credit 
carryforwards. We measure deferred tax assets and liabilities using enacted tax rates expected to be applied to taxable income in 
the years in which those temporary differences and carryforwards are expected to be recovered or settled. The effect on deferred 
tax assets and liabilities as a result of a change in tax rates is recognized in income in the period that the change is enacted. 
Valuation allowances are provided when recovery of deferred tax assets does not meet the more likely than not standard as 
defined in GAAP. Valuation allowances would be reversed as a reduction to the provision for income taxes if related deferred tax 
assets are deemed realizable based on changes in facts and circumstances relevant to the recoverability of the asset.

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Table of Contents

Part II

At December 31, 2020, we have federal and state net operating loss carryforwards of which we are expecting an insignificant tax 
benefit to be realized. We have assets for foreign net operating losses of $92.1 million, with various expiration dates (and in some 
cases no expiration date), subject to a valuation allowance of approximately 43%. If actual results differ unfavorably from certain of 
our estimates used, we may not be able to realize all or part of our net deferred income tax assets and additional valuation 
allowances may be required. Although we believe our estimates are reasonable, no assurance can be given that our estimates 
reflected in the tax provisions and accruals will equal our actual results. These differences could have a material impact on our 
income tax provision and operating results in the period in which such determination is made.

The evaluation of an uncertain tax position is a two-step process. The first step is a recognition process whereby we determine 
whether it is more likely than not that a tax position will be sustained upon examination, including resolution of any related appeals 
or litigation processes, based on the technical merits of the position. The second step is a measurement process whereby a tax 
position that meets the more likely than not recognition threshold is calculated to determine the amount of benefit to recognize in 
the financial statements. The tax position is measured as the largest amount of benefit that is greater than 50% likely of being 
realized upon ultimate settlement.

We are subject to income taxes in the United States and numerous foreign jurisdictions. We are subject to examination by various 
tax authorities in jurisdictions in which we have business operations or a taxable presence. We regularly assess the likelihood of 
additional assessments by tax authorities and provide for these matters as appropriate. As of December 31, 2020 and 2019, we 
had approximately $26.0 million and $35.1 million, respectively, of reserves related to uncertain tax positions. The reversal of these 
reserves will be recorded as a reduction of our income tax provision if sustained. Although we believe our tax estimates are 
appropriate, the final determination of tax audits and any related litigation could result in changes in our estimates.

Following our conversion to a REIT in 2014, we concluded that it was not our intent to reinvest our current and future undistributed 
earnings of our foreign subsidiaries indefinitely outside the United States. As of December 31, 2016, we concluded that it is our 
intent to indefinitely reinvest our current and future undistributed earnings of certain of our unconverted foreign TRSs outside the 
United States. With the exception of certain limited instances, we no longer provide incremental foreign withholding taxes on the 
retained book earnings of these unconverted foreign TRSs, which was approximately $262.4 million as of December 31, 2020. As a 
REIT, future repatriation of incremental undistributed earnings of our foreign subsidiaries will not be subject to federal or state 
income tax, with the exception of foreign withholding taxes in limited instances; however, such future repatriations will require 
distribution in accordance with REIT distribution rules, and any such distribution may then be taxable, as appropriate, at the 
stockholder level. We continue, however, to provide for incremental foreign withholding taxes on net book over outside basis 
differences related to the earnings of our foreign QRSs and certain other foreign TRSs (excluding unconverted foreign TRSs).

IRON MOUNTAIN 2020 FORM 10-K

39

Table of Contents

Part II

RESULTS OF OPERATIONS

COMPARISON OF YEAR ENDED DECEMBER 31, 2020 TO YEAR ENDED DECEMBER 31, 2019 AND 
COMPARISON OF YEAR ENDED DECEMBER 31, 2019 TO YEAR ENDED DECEMBER 31, 2018 
(IN THOUSANDS):

Revenues

Operating Expenses

Operating Income

Other Expenses, Net

Income from Continuing Operations

Income (Loss) from Discontinued Operations, Net of Tax

Net Income

Net Income Attributable to Noncontrolling Interests

Net Income Attributable to Iron Mountain Incorporated

Adjusted EBITDA(1)
Adjusted EBITDA Margin(1)

Revenues

Operating Expenses

Operating Income

Other Expenses, Net

Income from Continuing Operations

Income (Loss) from Discontinued Operations, Net of Tax

Net Income

Net Income Attributable to Noncontrolling Interests

Net Income Attributable to Iron Mountain Incorporated

Adjusted EBITDA(1)
Adjusted EBITDA Margin(1)

YEAR ENDED DECEMBER 31,

2020

2019

DOLLAR
CHANGE

PERCENTAGE
CHANGE

$ 

4,147,270 

$ 

4,262,584 

$ 

(115,314) 

3,212,485 

3,481,246 

934,785 

591,689 

343,096 

— 

343,096 

403 

781,338 

513,127 

268,211 

104 

268,315 

938 

$ 

$ 

342,693 

1,475,721 

$ 

$ 

267,377 

1,469,009 

$ 

$ 

 35.6 %

 34.5 %

(268,761) 

153,447 

78,562 

74,885 

(104) 

74,781 

(535) 

75,316 

6,712 

 (2.7) %

 (7.7) %

 19.6 %

 15.3 %

 27.9 %

 (100.0) %

 27.9 %

 (57.0) %

 28.2 %

 0.5 %

YEAR ENDED DECEMBER 31,

2019

2018

DOLLAR
CHANGE

PERCENTAGE
CHANGE

$ 

4,262,584 

$ 

4,225,761 

$ 

3,481,246 

3,417,494 

781,338 

513,127 

268,211 

104 

268,315 

938 

$ 

$ 

267,377 

1,469,009 

$ 

$ 

808,267 

440,709 

367,558 

(12,427) 

355,131 

1,198 

353,933 

1,458,924 

$ 

$ 

 34.5 %

 34.5 %

36,823 

63,752 

(26,929) 

72,418 

(99,347) 

12,531 

(86,816) 

(260) 

(86,556) 

10,085 

 0.9 %

 1.9 %

 (3.3) %

 16.4 %

 (27.0) %

 (100.8) %

 (24.4) %

 (21.7) %

 (24.5) %

 0.7 %

(1) See “Non-GAAP Measures—Adjusted EBITDA” in this Annual Report for the definitions of Adjusted EBITDA and Adjusted EBITDA Margin, reconciliation of Adjusted 
EBITDA to Income (Loss) from Continuing Operations and a discussion of why we believe these non-GAAP measures provide relevant and useful information to our 
current and potential investors.

40

IRON MOUNTAIN 2020 FORM 10-K

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

REVENUES

Part II

Consolidated revenues consist of the following (in thousands):

YEAR ENDED DECEMBER 31,

PERCENTAGE CHANGE

2020

2019

DOLLAR
CHANGE

ACTUAL

CONSTANT
CURRENCY(1)

IMPACT OF 
ACQUISITIONS

ORGANIC
GROWTH(2)

Storage Rental

$ 

2,754,091  $ 

2,681,087  $ 

73,004 

 2.7 %

Service

1,393,179 

1,581,497 

(188,318) 

 (11.9) %

Total Revenues

$ 

4,147,270  $ 

4,262,584  $ 

(115,314) 

 (2.7) %

 3.8 %

 (11.0) %

 (1.7) %

 1.4 %

 1.8 %

 1.6 %

 2.4 %

 (12.8) %

 (3.3) %

YEAR ENDED DECEMBER 31,

PERCENTAGE CHANGE

2019

2018

DOLLAR
CHANGE

ACTUAL

CONSTANT
CURRENCY(1)

IMPACT OF 
ACQUISITIONS

ORGANIC
GROWTH(2)

Storage Rental

$ 

2,681,087  $ 

2,622,455  $ 

58,632 

Service

1,581,497 

1,603,306 

(21,809) 

Total Revenues

$ 

4,262,584  $ 

4,225,761  $ 

36,823 

 2.2 %

 (1.4) %

 0.9 %

 4.3 %

 0.9 %

 3.0 %

 1.8 %

 1.9 %

 1.9 %

 2.5 %

 (1.0) %

 1.1 %

(1) Constant currency growth rates are calculated by translating the 2019 results at the 2020 average exchange rates and the 2018 results at the 2019 average 

exchange rates.

(2) Our organic revenue growth rate, which is a non-GAAP measure, represents the year-over-year growth rate of our revenues excluding the impact of business 

acquisitions, divestitures and foreign currency exchange rate fluctuations, but including the impact of acquisitions of customer relationships.

TOTAL REVENUES

For the year ended December 31, 2020, the decrease in reported consolidated revenue was driven by declines in reported service 
revenue partially offset by reported storage rental revenue growth. Foreign currency exchange rate fluctuations decreased our 
reported consolidated revenues by 1.0% in the year ended December 31, 2020 compared to the prior year period.

STORAGE RENTAL REVENUES AND SERVICE REVENUES

Primary factors influencing the change in reported storage rental revenue and reported service revenue for the year ended 
December 31, 2020 compared to the year ended December 31, 2019 include the following: 

STORAGE RENTAL REVENUES • organic storage rental revenue growth driven by volume growth in faster growing markets 

SERVICE REVENUES

and revenue management;

• a 2.1% increase in global records management volume due to acquisitions (excluding 

acquisitions, global records management volume decreased 1.1%); and

• a decrease of $29.1 million due to foreign currency exchange rate fluctuations.

• a decrease in service activity as a result of the COVID-19 pandemic, particularly in 

regions where governments have imposed restrictions on our customers' non-essential 
business operations;

• organic service revenue declines reflecting lower service activity levels; and

• a decrease of $15.7 million due to foreign currency exchange rate fluctuations.

IRON MOUNTAIN 2020 FORM 10-K

41

 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Part II

OPERATING EXPENSES

COST OF SALES

Consolidated Cost of sales (excluding depreciation and amortization) consists of the following expenses (in thousands):

YEAR ENDED 
DECEMBER 31,

PERCENTAGE 
CHANGE

% OF
CONSOLIDATED
REVENUES

2020

2019

DOLLAR 
CHANGE

ACTUAL

CONSTANT
CURRENCY

2020

2019

PERCENTAGE
CHANGE
(FAVORABLE)/
UNFAVORABLE

Product Cost of Sales and Other

154,386 

Labor

Facilities

Transportation

COVID-19 Costs

Total Cost of sales

Labor

Facilities

Transportation

Product Cost of Sales and Other

$  738,038  $  814,459  $ 

(76,421) 

731,679 

125,591 

697,330 

162,905 

158,621 

34,349 

(37,314) 

 (22.9) %

(4,235) 

 (2.7) %

7,648 

— 

7,648 

 100.0 %

 (9.4) %

 4.9 %

 (7.9) %

 17.8 %

 19.1 %

 6.0 %

 17.6 %

 16.4 %

 (22.6) %

 (1.0) %

 100.0 %

 3.0 %

 3.7 %

 0.2 %

 3.8 %

 3.7 %

 — %

$ 1,757,342  $ 1,833,315  $ 

(75,973) 

 (4.1) %

 (2.9) %

 42.4 %

 43.0 %

YEAR ENDED 
DECEMBER 31,

PERCENTAGE 
CHANGE

% OF
CONSOLIDATED
REVENUES

2019

2018

DOLLAR
CHANGE

ACTUAL

CONSTANT
CURRENCY

$  814,459  $  818,729  $ 

(4,270) 

 (0.5) %

2019

2018

 19.1 %

 19.4 %

 16.4 %

 15.4 %

 3.8 %

 3.7 %

 3.8 %

 3.9 %

 2.2 %

 9.5 %

 5.1 %

 (1.4) %

697,330 

162,905 

158,621 

651,114 

158,528 

165,583 

46,216 

4,377 

(6,962) 

 7.1 %

 2.8 %

 (4.2) %

 2.2 %

 (1.3) %

 1.2 %

 (0.8) %

 — %

 0.2 %

 (0.6) %

PERCENTAGE
CHANGE
(FAVORABLE)/
UNFAVORABLE

 (0.3) %

 1.0 %

 — %

 (0.2) %

 0.5 %

Total Cost of sales

$ 1,833,315  $ 1,793,954  $ 

39,361 

 4.8 %

 43.0 %

 42.5 %

Primary factors influencing the change in reported consolidated Cost of sales for the year ended December 31, 2020 compared to 
the year ended December 31, 2019 include the following: 

• a decrease in labor costs driven by cost containment actions taken in response to lower service activity levels due to the 

COVID-19 pandemic, partially offset by incremental labor costs associated with recent acquisitions; 

• a decrease in transportation costs primarily driven by lower third party carrier cost and fuel cost reflecting cost containment 

actions taken in response to lower service activity levels;

• an increase in facilities expenses driven by increases in rent expense, in part due to recent acquisitions and the impact from our 
recent sale-leaseback activity (which we expect to continue in 2021 as we continue to look for future opportunities to monetize a 
small portion of our owned industrial real estate assets as part of our ongoing capital recycling program); and

• a decrease of $23.5 million due to foreign currency exchange rate fluctuations.

42

IRON MOUNTAIN 2020 FORM 10-K

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 (0.8) %

 (0.2) %

 0.3 %

 0.3 %

 — %

 (0.4) %

 (0.5) %

 (0.3) %

 0.2 %

 0.1 %

 (0.5) %

Table of Contents

Part II

SELLING, GENERAL AND ADMINISTRATIVE EXPENSES

Consolidated Selling, general and administrative expenses consists of the following expenses (in thousands):

YEAR ENDED 
DECEMBER 31,

2020

2019

PERCENTAGE 
CHANGE

% OF
CONSOLIDATED
REVENUES

DOLLAR
CHANGE

ACTUAL

CONSTANT
CURRENCY

2020

2019

PERCENTAGE
CHANGE
(FAVORABLE)/
UNFAVORABLE

General and Administrative

$  513,664  $  563,965  $ 

(50,301) 

 (8.9) %

 (7.9) %

 12.4 %

 13.2 %

Sales, Marketing and Account 
Management

  231,365 

  245,704 

(14,339) 

Information Technology

  168,138 

  162,606 

5,532 

15,022 

 (5.8) %

 3.4 %

 77.5 %

 (5.0) %

 4.2 %

 78.9 %

34,411 

19,389 

1,637 

— 

1,637 

 100.0 %

 100.0 %

 5.6 %

 4.1 %

 0.8 %

 — %

 5.8 %

 3.8 %

 0.5 %

 — %

Bad Debt Expense

COVID-19 Costs

Total Selling, general and 
administrative expenses

$  949,215  $  991,664  $ 

(42,449) 

 (4.3) %

 (3.4) %

 22.9 %

 23.3 %

YEAR ENDED 
DECEMBER 31,

2019

2018

PERCENTAGE 
CHANGE

% OF
CONSOLIDATED
REVENUES

DOLLAR
CHANGE

ACTUAL

CONSTANT
CURRENCY

2019

2018

PERCENTAGE
CHANGE
(FAVORABLE)/
UNFAVORABLE

General and Administrative

$  563,965  $  577,451  $ 

(13,486) 

 (2.3) %

 (0.5) %

 13.2 %

 13.7 %

Sales, Marketing and Account 
Management

  245,704 

  257,306 

(11,602) 

 (4.5) %

Information Technology

  162,606 

  153,601 

19,389 

18,625 

9,005 

764 

 5.9 %

 4.1 %

 (2.8) %

 7.1 %

 6.4 %

 5.8 %

 3.8 %

 0.5 %

 6.1 %

 3.6 %

 0.4 %

Bad Debt Expense

Total Selling, general and 
administrative expenses

$  991,664  $ 1,006,983  $ 

(15,319) 

 (1.5) %

 0.2 %

 23.3 %

 23.8 %

Primary factors influencing the change in reported consolidated Selling, general and administrative expenses for the year ended 
December 31, 2020 compared to the year ended December 31, 2019 include the following: 

• a decrease in general and administrative expenses, driven by decreased wages and benefit expense and other employee 
related costs, as well as lower professional fees, reflecting benefits from Project Summit and ongoing cost containment 
measures, partially offset by higher bonus compensation accruals;

• a decrease in sales, marketing and account management expenses, driven by decreased compensation expense and other 

employee related costs, reflecting benefits from Project Summit and ongoing cost containment measures;

• higher bad debt expense, primarily driven by increased collectability risk resulting from the COVID-19 pandemic; and

•

foreign currency exchange rate fluctuations decreased reported consolidated Selling, general and administrative expenses by 
$9.4 million.

DEPRECIATION AND AMORTIZATION

Our depreciation and amortization charges result primarily from depreciation related to storage systems, which include racking 
structures, buildings, building and leasehold improvements and computer systems hardware and software. Amortization relates 
primarily to customer relationship intangible assets, contract fulfillment costs and data center lease-based intangible assets. Both 
depreciation and amortization are impacted by the timing of acquisitions.

Depreciation expense decreased $8.8 million, or 1.9%, on a reported dollar basis for the year ended December 31, 2020 compared 
to the year ended December 31, 2019. See Note 2.h. to Notes to Consolidated Financial Statements included in this Annual Report 
for additional information regarding the useful lives over which our property, plant and equipment is depreciated. 

Amortization expense increased $2.6 million, or 1.3%, on a reported dollar basis for the year ended December 31, 2020 compared 
to the year ended December 31, 2019. 

IRON MOUNTAIN 2020 FORM 10-K

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Part II

SIGNIFICANT ACQUISITION COSTS

Significant Acquisition Costs for the years ended December 31, 2020, 2019 and 2018 were approximately $0.0 million, $13.3 
million and $50.7 million, respectively, and primarily consisted of operating expenditures associated with (1) our acquisition of 
Recall that we completed on May 2, 2016 (the “Recall Transaction"), including: (i) advisory and professional fees to complete the 
Recall Transaction; (ii) costs associated with the divestments required in connection with receipt of regulatory approvals (including 
transitional services); and (iii) costs to integrate Recall with our existing operations, including moving, severance, facility upgrade, 
REIT integration and system upgrade costs, as well as certain costs associated with our shared service center initiative for our 
finance, human resources and information technology functions; and (2) the advisory and professional fees to complete the IODC 
Transaction (collectively, “Significant Acquisition Costs”).

RESTRUCTURING CHARGES

Restructuring Charges for the years ended December 31, 2020 and 2019 were approximately $194.4 million and $48.6 million, 
respectively, and primarily consisted of employee severance costs and professional fees associated with Project Summit.

INTANGIBLE IMPAIRMENTS

The intangible impairment charge for the year ended December 31, 2020 was $23.0 million and related to the write-down of 
goodwill associated with our Fine Arts reporting unit in the first quarter of 2020, as discussed above.

GAIN ON DISPOSAL/WRITE-DOWN OF PROPERTY, PLANT AND
EQUIPMENT, NET

Consolidated gain on disposal/write-
down of property, plant and 
equipment, net

2020
Approximately $363.5 million

2019
Approximately $63.8 million

YEAR ENDED DECEMBER 31,

The gains primarily consisted of:

• Gains associated with sale-leaseback 

• Gains associated with sale and sale-leaseback 

transactions of approximately $342.1 million, of 
which (i) approximately $265.6 million relates to 
the sale-leaseback transactions of 14 facilities in 
the United States during the fourth quarter of 
2020 and (ii) approximately $76.4 million relates 
to the sale-leaseback transactions of two 
facilities in the United States during the third 
quarter of 2020, each as part of our program to 
monetize a small portion of our industrial real 
estate assets

• Gains of approximately $24.1 million associated 
with the Frankfurt JV Transaction (as defined 
below)

transactions of approximately $67.8 million in the 
United States

• The sale of certain land and buildings of 
approximately $36.0 million in the United 
Kingdom

Partially offset by losses from:

• The impairment charge on the assets associated 
with the select offerings within our Iron Mountain 
Iron Cloud ("Iron Cloud") portfolio and loss on 
the subsequent sale of certain IT infrastructure 
assets and rights to certain hardware and 
maintenance contracts used to deliver these Iron 
Cloud offerings of approximately $25.0 million

• The write-down of certain property, plant and 

equipment of approximately $15.7 million in the 
United States

OTHER EXPENSES, NET

INTEREST EXPENSE, NET

Consolidated Interest Expense, Net decreased $0.8 million, to $418.5 million for the year ended December 31, 2020 from $419.3 
million for the year ended December 31, 2019. The decrease in Interest Expense, Net during the year ended December 31, 2020 
compared to the year ended December 31, 2019 was mainly driven by a decrease in the weighted average interest rate on our 
outstanding debt, partially offset by higher average debt outstanding for the year ended December 31, 2020. Our weighted average 
interest rate, inclusive of the commitment fee on the unused portion of our Revolving Credit Facility (as defined below) and fees 
associated with the letters of credit, was 4.7% and 4.8% at December 31, 2020 and 2019, respectively. See Note 6 to Notes to 
Consolidated Financial Statements included in this Annual Report for additional information regarding our indebtedness.

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Part II

OTHER EXPENSE (INCOME), NET 

Consolidated other expense (income), net consists of the following (in thousands):

DESCRIPTION

Foreign currency transaction losses (gains), net

Debt extinguishment expense

Other, net

Other Expense (Income), Net

YEAR ENDED DECEMBER 31,

2020

2019

DOLLAR
CHANGE

$ 

$ 

29,830  $ 

24,852  $ 

68,300 

45,415 

— 

9,046 

4,978 

68,300 

36,369 

143,545  $ 

33,898  $ 

109,647 

FOREIGN CURRENCY TRANSACTION LOSSES (GAINS), NET 

We recorded net foreign currency transaction losses of $29.8 million in the year ended December 31, 2020, based on period-end 
exchange rates. These losses resulted primarily from the impact of changes in the exchange rate of the British pound sterling 
against the United States dollar compared to December 31, 2019 on our intercompany balances with and between certain of our 
subsidiaries.

DEBT EXTINGUISHMENT EXPENSE

Debt extinguishment expense represents the call premiums and write-off of unamortized deferred financing costs associated with 
the early redemption of the 6% Notes, the 43/8% Notes, the 53/4% Notes, the CAD Notes, the Euro Notes and the 53/8% Notes (as 
defined below).

OTHER, NET

Other, net for the year ended December 31, 2020 consists primarily of changes in the estimated value of our mandatorily 
redeemable noncontrolling interests as well as losses on our equity method investments.

PROVISION (BENEFIT) FOR INCOME TAXES

Our effective tax rates for the years ended December 31, 2020 and 2019 were 7.9% and 18.3%, respectively. Our effective tax rate 
is subject to variability in the future due to, among other items: (1) changes in the mix of income between our QRSs and our TRSs, 
as well as among the jurisdictions in which we operate; (2) tax law changes; (3) volatility in foreign exchange gains and losses; (4) 
the timing of the establishment and reversal of tax reserves; and (5) our ability to utilize net operating losses that we generate.

The primary reconciling items between the federal statutory tax rate of 21.0% and our overall effective tax rate were:

2020
The benefit derived from the dividends paid deduction of $60.4 million 
and the impact of differences in the tax rates at which our foreign 
earnings are subject to, resulting in a tax provision of $9.5 million.

2019
The benefit derived from the dividends paid deduction of $40.6 million 
and the impact of differences in the tax rates at which our foreign 
earnings are subject to, resulting in a tax provision of $8.6 million.

YEAR ENDED DECEMBER 31,

As a REIT, we are entitled to a deduction for dividends paid, resulting in a substantial reduction of federal income tax expense. As a 
REIT, substantially all of our income tax expense will be incurred based on the earnings generated by our foreign subsidiaries and 
our domestic TRSs.

We are subject to income taxes in the United States and numerous foreign jurisdictions. We are subject to examination by various 
tax authorities in jurisdictions in which we have business operations or a taxable presence. We regularly assess the likelihood of 
additional assessments by tax authorities and provide for these matters as appropriate. Although we believe our tax estimates are 
appropriate, the final determination of tax audits and any related litigation could result in changes in our estimates.

IRON MOUNTAIN 2020 FORM 10-K

45

 
 
 
 
 
 
 
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Part II

INCOME (LOSS) FROM CONTINUING OPERATIONS AND 
ADJUSTED EBITDA

The following table reflects the effect of the foregoing factors on our consolidated income (loss) from continuing operations and 
Adjusted EBITDA (in thousands):

Income (Loss) from Continuing Operations

$ 

343,096 

$ 

268,211 

$ 

74,885 

 27.9 %

Income (Loss) from Continuing Operations as a percentage of 
Consolidated Revenue

 8.3 %

 6.3 %

Adjusted EBITDA

Adjusted EBITDA Margin

$ 

1,475,721 

$ 

1,469,009 

$ 

6,712 

 0.5 %

 35.6 %

 34.5 %

YEAR ENDED DECEMBER 31,

2020

2019

DOLLAR
CHANGE

PERCENTAGE
CHANGE

Income (Loss) from Continuing Operations

$ 

268,211 

$ 

367,558 

$ 

(99,347) 

 (27.0) %

Income (Loss) from Continuing Operations as a percentage of 
Consolidated Revenue

 6.3 %

 8.7 %

Adjusted EBITDA

Adjusted EBITDA Margin

$ 

1,469,009 

$ 

1,458,924 

$ 

10,085 

 0.7 %

 34.5 %

 34.5 %

YEAR ENDED DECEMBER 31,

2019

2018

DOLLAR
CHANGE

PERCENTAGE
CHANGE

Consolidated Adjusted EBITDA Margin for the year ended 
December 31, 2020 increased by 110 basis points compared to 
the prior year, reflecting benefits from Project Summit, revenue 
management, favorable revenue mix and ongoing cost 
containment measures, partially offset by fixed cost deleverage 
on lower service revenue and higher bonus compensation 
accruals.

↑  INCREASED BY $6.7 MILLION 
OR 0.5%
Consolidated Adjusted EBITDA

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Table of Contents

SEGMENT ANALYSIS 

Part II

See the discussion of Business Segments under Item I and Note 10 to Notes to Consolidated Financial Statements, both included 
in this Annual Report, for a description of our reportable operating segments.

GLOBAL RIM BUSINESS (IN THOUSANDS)

YEAR ENDED DECEMBER 31,

PERCENTAGE CHANGE

2020

2019

DOLLAR
CHANGE

ACTUAL

CONSTANT
CURRENCY

IMPACT OF
ACQUISITIONS

ORGANIC
GROWTH

Storage Rental

Service

$  2,373,783 

$  2,320,076 

$  53,707 

 2.3 %

1,325,497 

1,492,357 

(166,860) 

 (11.2) %

Segment Revenue

$  3,699,280 

$  3,812,433 

$  (113,153) 

 (3.0) %

 3.6 %

 (10.2) %

 (1.8) %

 1.7 %

 1.9 %

 1.8 %

 1.9 %

 (12.1) %

 (3.6) %

Segment Adjusted EBITDA

$  1,574,069 

$  1,566,065 

$ 

8,004 

Segment Adjusted EBITDA Margin

 42.6 %

 41.1 %

YEAR ENDED DECEMBER 31,

PERCENTAGE CHANGE

2019

2018

DOLLAR
CHANGE

ACTUAL

CONSTANT
CURRENCY

IMPACT OF
ACQUISITIONS

ORGANIC
GROWTH

Storage Rental

Service

$  2,320,076 

$  2,301,344 

$  18,732 

1,492,357 

1,541,256 

Segment Revenue

$  3,812,433 

$  3,842,600 

Segment Adjusted EBITDA

$  1,566,065 

$  1,572,438 

Segment Adjusted EBITDA Margin

 41.1 %

 40.9 %

(48,899) 

(30,167) 

(6,373) 

$ 

$ 

 0.8 %

 (3.2) %

 (0.8) %

 3.0 %

 (1.0) %

 1.4 %

 0.8 %

 0.3 %

 0.6 %

 2.2 %

 (1.3) %

 0.8 %

3-YEAR SEGMENT ANALYSIS: GLOBAL RIM BUSINESS (IN MILLIONS)

Primary factors influencing the change in revenue and Adjusted EBITDA Margin in our Global RIM Business segment for the year 
ended December 31, 2020 compared to the year ended December 31, 2019 include the following:

• a decline in organic service revenue mainly driven by reduced service activity levels, primarily due to the COVID-19 pandemic;

• organic storage rental revenue growth driven by revenue management;

• a decrease in revenue of $45.7 million due to foreign currency exchange rate fluctuations;

• a 2.1% increase in global records management volume due to acquisitions (excluding acquisitions, global records management 

volume decreased 1.1%); and

• a 150 basis point increase in Adjusted EBITDA Margin primarily driven by benefits from Project Summit, revenue management, 

favorable revenue mix and ongoing cost containment measures, partially offset by fixed cost deleverage on lower service 
revenues and higher bonus compensation accruals.

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Part II

GLOBAL DATA CENTER BUSINESS (IN THOUSANDS)

Storage Rental

Service

Segment Revenue

Segment Adjusted EBITDA

YEAR ENDED DECEMBER 31,

PERCENTAGE CHANGE

2020
263,695 

15,617 

279,312 

126,576 

$ 

$ 

$ 

$ 

$ 

$ 

2019
246,925 

10,226 

DOLLAR
CHANGE
$  16,770 

5,391 

257,151 

$  22,161 

121,517 

$ 

5,059 

ACTUAL

 6.8 %

 52.7 %

 8.6 %

CONSTANT
CURRENCY
 6.5 %

IMPACT OF 
ACQUISITIONS
 — %

ORGANIC
GROWTH
 6.5 %

 51.5 %

 8.3 %

 — %

 — %

 51.5 %

 8.3 %

Segment Adjusted EBITDA Margin

 45.3 %

 47.3 %

YEAR ENDED DECEMBER 31,

PERCENTAGE CHANGE

2019

2018

DOLLAR
CHANGE

ACTUAL

CONSTANT
CURRENCY

IMPACT OF 
ACQUISITIONS

ORGANIC
GROWTH

Storage Rental

Service

Segment Revenue

Segment Adjusted EBITDA

$ 

246,925 

$ 

218,675 

$  28,250 

10,226 

257,151 

121,517 

$ 

$ 

10,308 

(82) 

$ 

$ 

228,983 

$  28,168 

99,575 

$  21,942 

Segment Adjusted EBITDA Margin

 47.3 %

 43.5 %

 12.9 %

 (0.8) %

 12.3 %

 13.4 %

 (0.7) %

 12.8 %

 8.1 %

 4.1 %

 8.0 %

 5.3 %

 (4.8) %

 4.8 %

3-YEAR SEGMENT ANALYSIS: GLOBAL DATA CENTER BUSINESS (IN MILLIONS)

Primary factors influencing the change in revenue and Adjusted EBITDA Margin in our Global Data Center Business segment for 
the year ended December 31, 2020 compared to the year ended December 31, 2019 include the following:

• organic revenue growth from leases signed in prior periods and service revenue growth, partially offset by churn of 680 basis 

points;

• non-recurring revenue benefits in the prior year include a previously disclosed lease modification fee of $5.4 million, while non-

recurring revenue benefits in the current year were $1.8 million; and

• a 200 basis point decrease in Adjusted EBITDA Margin reflecting headwinds from flow through of non-recurring revenue benefits 

described above and a $4.0 million prior year contractual settlement, partially offset by ongoing cost containment measures.

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Part II

CORPORATE AND OTHER BUSINESS (IN THOUSANDS)

YEAR ENDED DECEMBER 31,

PERCENTAGE CHANGE

2020

2019

DOLLAR
CHANGE

ACTUAL

CONSTANT
CURRENCY

IMPACT OF
ACQUISITIONS

ORGANIC
GROWTH

Storage Rental

Service

Segment Revenue

Segment Adjusted EBITDA

Segment Adjusted EBITDA as a 
Percentage of Consolidated Revenue

$ 

116,613 

$ 

114,086 

$ 

2,527 

52,065 

168,678 

(224,924) 

$ 

$ 

$ 

$ 

78,914 

(26,849) 

193,000 

$  (24,322) 

(218,573) 

$ 

(6,351) 

 (5.4) %

 (5.1) %

 2.2 %

 (34.0) %

 (12.6) %

 2.1 %

 (34.1) %

 (12.7) %

 (1.1) %

 0.3 %

 (0.5) %

 3.2 %

 (34.4) %

 (12.2) %

YEAR ENDED DECEMBER 31,

PERCENTAGE CHANGE

2019

2018

DOLLAR
CHANGE

ACTUAL

CONSTANT
CURRENCY

IMPACT OF
ACQUISITIONS

ORGANIC
GROWTH

Storage Rental

Service

Segment Revenue

Segment Adjusted EBITDA

Segment Adjusted EBITDA as a 
Percentage of Consolidated Revenue

$ 

114,086 

$ 

102,436 

$  11,650 

78,914 

193,000 

(218,573) 

$ 

$ 

$ 

$ 

51,742 

  27,172 

154,178 

$  38,822 

(213,089) 

$ 

(5,484) 

 (5.1) %

 (5.0) %

 11.4 %

 52.5 %

 25.2 %

 11.9 %

 55.0 %

 26.3 %

 8.7 %

 46.8 %

 21.4 %

 3.2 %

 8.2 %

 4.9 %

Primary factors influencing the change in revenue and Adjusted EBITDA in our Corporate and Other Business segment for the year 
ended December 31, 2020 compared to the year ended December 31, 2019 include the following:

• a decline in organic service revenue due to lower service activity levels in our Fine Arts business, primarily related to the 

COVID-19 pandemic; and

• a decrease in Adjusted EBITDA reflecting the impact of lower service activity in our Fine Arts business, increased information 

technology expenses and higher bonus compensation accruals, partially offset by benefits from Project Summit.

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Table of Contents

Part II

LIQUIDITY AND CAPITAL RESOURCES

GENERAL

We expect to meet our short-term and long-term cash flow requirements through cash generated from operations, cash on hand, 
borrowings under our Credit Agreement (as defined below) and proceeds from monetizing a small portion of our total industrial real 
estate assets in the future, as well as other potential financings (such as the issuance of debt or equity). Our cash flow 
requirements, both in the near and long term, include, but are not limited to, capital expenditures, the repayment of outstanding 
debt, shareholder dividends, Project Summit initiatives, potential and pending business acquisitions and normal business operation 
needs. 

PROJECT SUMMIT

As disclosed above, in October 2019, we announced Project Summit. We estimate that the implementation of Project Summit will 
result in total Restructuring Charges of approximately $450.0 million. From the inception of Project Summit through December 31, 
2020, we have incurred approximately $243.0 million of 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 December 31, 2020, we have also incurred approximately $10.1 
million of capital expenditures.

CASH FLOWS

The following is a summary of our cash balances and cash flows (in thousands) as of and for the years ended December 31,

Cash Flows from Operating Activities - Continuing Operations

$ 

987,657  $ 

966,655  $ 

936,544 

Cash Flows from Investing Activities - Continuing Operations

Cash Flows from Financing Activities - Continuing Operations

Cash and Cash Equivalents, including Restricted Cash, End of Year

(85,440) 

(886,699) 

205,063 

(735,946) 

(198,973) 

193,555 

(2,230,128) 

550,678 

165,485 

2020

2019

2018

A. CASH FLOWS FROM OPERATING ACTIVITIES

For the year ended December 31, 2020, net cash flows provided by operating activities increased by $21.0 million compared to the 
prior year period primarily due to an increase in cash provided by working capital of $125.6 million, primarily related to the timing of 
payments associated with certain accrued expenses offset by a decrease in net income (including non-cash charges and realized 
foreign exchange losses) of $104.6 million.

B. CASH FLOWS FROM INVESTING ACTIVITIES

Our significant investing activities during the year ended December 31, 2020 are highlighted below:

• We paid cash for capital expenditures of $438.3 million. Additional details of our capital spending are included in the “Capital 

Expenditures” section below.

• We paid cash for acquisitions (net of cash acquired) of $118.6 million, primarily funded by borrowings under our Revolving Credit 

Facility.

• We received $564.7 million in proceeds from sales of property, plant and equipment, primarily related to proceeds from sale-

leaseback transactions of facilities during the third quarter and fourth quarter of 2020 and proceeds received in connection with 
the Frankfurt JV Transaction during the fourth quarter of 2020. 

C. CASH FLOWS FROM FINANCING ACTIVITIES

Our significant financing activities for the year ended December 31, 2020 included:

• Net proceeds of $2,376.0 million associated with the June 2020 Offerings (as defined below).

• Net proceeds of $1,089.0 million associated with the issuance of the 41/2% Notes (as defined below).
• Payments, including call premiums, of $2,942.6 million associated with the early redemption of the 43/8% Notes, the 6% Notes, 

the 53/4% Notes, the CAD Notes, the Euro Notes and the 53/8% Notes (each as defined below). 

• Net payments of $664.9 million primarily associated with the repayments on our Revolving Credit Facility and Accounts 

Receivable Securitization Program (as defined below).

• Payment of dividends in the amount of $716.3 million on our common stock.

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CAPITAL EXPENDITURES

Part II

We present two categories of capital expenditures: (1) Growth Investment Capital Expenditures and (2) Recurring Capital 
Expenditures with the following sub-categories: (i) Data Center; (ii) Real Estate; (iii) Innovation and Other (for Growth Investment 
Capital Expenditures only); and (iv) Non-Real Estate (for Recurring Capital Expenditures only). During 2020, a portion of what was 
previously categorized as Non-Real Estate Growth Capital Expenditures was recategorized as Real Estate Growth Capital 
Expenditures and the remaining portion was recategorized as Recurring Capital Expenditures. In addition, capital expenditures 
associated with restructuring (including Project Summit) and integration of acquisitions, which was previously categorized as 
recurring capital expenditures, have been recategorized as Innovation and Other. We have reclassified the categorization of our 
prior year capital expenditures to conform with our current presentation.

GROWTH INVESTMENT CAPITAL EXPENDITURES:

• Data Center: Expenditures primarily related to investments in new construction of data center facilities (including the acquisition 

of land and development of facilities) or capacity expansion in existing buildings.

• Real Estate: Expenditures primarily related to investments in land, buildings, building improvements, leasehold improvements 

and racking structures to grow our revenues or achieve operational efficiencies.

•

Innovation and Other: Discretionary capital expenditures for significant new products and services, restructuring (including 
Project Summit), and integration of acquisitions.

RECURRING CAPITAL EXPENDITURES:

• Real Estate: Expenditures primarily related to the replacement of components of real estate assets such as buildings, building 

improvements, leasehold improvements and racking structures.

• Non-Real Estate: Expenditures primarily related to the replacement of containers and shred bins, warehouse equipment, 

fixtures, computer hardware, or third-party or internally-developed software assets that support the maintenance of existing 
revenues or avoidance of an increase in costs.  

• Data Center: Expenditures related to the upgrade or re-configuration of existing data center assets.

The following table presents our capital spend for 2020, 2019 and 2018 organized by the type of the spending as described above.

NATURE OF CAPITAL SPEND (IN THOUSANDS)

Growth Investment Capital Expenditures:

Data Center

Real Estate

Innovation and Other

Total Growth Investment Capital Expenditures

Recurring Capital Expenditures:

Real Estate

Non-Real Estate

Data Center

Total Recurring Capital Expenditures

Total Capital Spend (on accrual basis)

Net increase (decrease) in prepaid capital expenditures

Net (increase) decrease in accrued capital expenditures

Total Capital Spend (on cash basis)

2020

2019

2018

$ 

216,491  $ 

401,902  $ 

162,666 

67,217 

18,810 

302,518 

51,009 

76,124 

15,959 

143,092 

445,610 

1,836 

(9,183) 

133,093 

17,555 

552,550 

55,444 

74,092 

8,589 

138,125 

690,675 

510 

1,798 

138,307 

30,291 

331,264 

73,146 

61,490 

9,051 

143,687 

474,951 

(1,844) 

(13,045) 

$ 

438,263  $ 

692,983  $ 

460,062 

Excluding capital expenditures associated with potential future acquisitions, we expect total capital expenditures of approximately 
$550.0 million for the year ending December 31, 2021. Of this, we expect our capital expenditures for growth investment to be 
approximately $410.0 million, and our recurring capital expenditures to be approximately $140.0 million. Our capital expenditures 
for growth investment includes Global Data Center Business development spend of approximately $300.0 million.

DIVIDENDS

See Note 8 to Notes to Consolidated Financial Statements included in this Annual Report for information on dividends.

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Part II

FINANCIAL INSTRUMENTS AND DEBT

Financial instruments that potentially subject us to credit risk consist principally of cash and cash equivalents (including money 
market funds) and accounts receivable. The only significant concentration of liquid investments as of December 31, 2020 is related 
to cash and cash equivalents. See Note 2.f. to Notes to the Consolidated Financial Statements included in this Annual Report for 
information on our money market funds.

Long-term debt as of December 31, 2020 is as follows (in thousands):

Revolving Credit Facility

Term Loan A

Term Loan B

Australian Dollar Term Loan (the "AUD Term Loan")

UK Bilateral Revolving Credit Facility
37/8% GBP Senior Notes due 2025 (the "GBP Notes")
47/8% Senior Notes due 2027 (the "47/8% Notes due 2027")
51/4% Senior Notes due 2028 (the "51/4% Notes due 2028")
5% Senior Notes due 2028 (the "5% Notes")
47/8% Senior Notes due 2029 (the "47/8% Notes due 2029")
51/4% Senior Notes due 2030 (the "51/4% Notes due 2030")
41/2% Senior Notes due 2031 (the "41/2% Notes")
55/8% Senior Notes due 2032 (the "55/8% Notes")
Real Estate Mortgages, Financing Lease Liabilities and Other

Accounts Receivable Securitization Program

Total Long-term Debt

Less Current Portion

DECEMBER 31, 2020

DEBT (INCLUSIVE
OF DISCOUNT)

UNAMORTIZED
DEFERRED
FINANCING 
COSTS

CARRYING
AMOUNT

$ 

—  $ 

(8,620)  $ 

(8,620) 

215,625 

679,621 

243,152 

191,101 

546,003 

1,000,000 

825,000 

500,000 

1,000,000 

1,300,000 

1,100,000 

600,000 

511,922 

85,000 

8,797,424 

(193,759) 

— 

(6,244) 

(1,624) 

(1,307) 

(4,983) 

(9,598) 

(8,561) 

(5,486) 

(12,658) 

(14,416) 

(12,648) 

(6,727) 

(1,086) 

(152) 

215,625 

673,377 

241,528 

189,794 

541,020 

990,402 

816,439 

494,514 

987,342 

1,285,584 

1,087,352 

593,273 

510,836 

84,848 

(94,110) 

8,703,314 

— 

(193,759) 

Long-term Debt, Net of Current Portion

$ 

8,603,665  $ 

(94,110)  $ 

8,509,555 

See Note 6 to Notes to Consolidated Financial Statements included in this Annual Report for additional information regarding our 
long-term debt. 

CREDIT AGREEMENT

Our credit agreement (the "Credit Agreement") consists of a revolving credit facility (the “Revolving Credit Facility”) and a term loan 
(the “Term Loan A”). The Revolving Credit Facility enables IMI and certain of its United States and foreign subsidiaries to borrow in 
United States dollars and (subject to sublimits) a variety of other currencies (including Canadian dollars, British pounds sterling and 
Euros, among other currencies) in an aggregate outstanding amount not to exceed $1,750.0 million. Under the Credit Agreement, 
we have the option to request additional commitments of up to $1,260.0 million, in the form of term loans or through increased 
commitments under the Revolving Credit Facility, subject to the conditions specified in the Credit Agreement. The Credit Agreement 
is scheduled to mature on June 4, 2023, at which point all obligations become due. The original principal amount of the Term Loan 
A was $250.0 million and is to be paid in quarterly installments in an amount equal to $3.1 million per quarter, with the remaining 
balance due on June 4, 2023. 

IMI and the Guarantors guarantee all obligations under the Credit Agreement. The interest rate on borrowings under the Credit 
Agreement varies depending on our choice of interest rate and currency options, plus an applicable margin, which varies based on 
our consolidated leverage ratio. Additionally, the Credit Agreement requires the payment of a commitment fee on the unused 
portion of the Revolving Credit Facility, which fee ranges from between 0.25% to 0.4% based on our consolidated leverage ratio 
and fees associated with outstanding letters of credit. As of December 31, 2020, we had no outstanding borrowings under the 
Revolving Credit Facility and $215.6 million aggregate outstanding principal amount under the Term Loan A. At December 31, 
2020, we had various outstanding letters of credit totaling $3.2 million under the Revolving Credit Facility. The amount available for 
borrowing under the Revolving Credit Facility as of December 31, 2020, which is based on IMI’s leverage ratio, the last 12 months' 
earnings before interest, taxes, depreciation and amortization and rent expense (“EBITDAR”), other adjustments as defined in the 
Credit Agreement and current external debt, was $1,746.8 million (which amount represents the maximum availability as of such 
date). Available borrowings under the Revolving Credit Facility are subject to compliance with our indenture covenants as 
discussed below. The average interest rate in effect for all outstanding borrowings under the Credit Agreement was 1.9% as of 
December 31, 2020. 

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Part II

IMI’s wholly owned subsidiary, Iron Mountain Information Management, LLC (“IMIM”), has an incremental term loan B with a 
principal amount of $700.0 million (the “Term Loan B”). The Term Loan B, which matures on January 2, 2026, was issued at 
99.75% of par. The Term Loan B holders benefit from the same security and guarantees as other borrowings under the Credit 
Agreement. The Term Loan B holders also benefit from the same affirmative and negative covenants as other borrowings under the 
Credit Agreement; however, the Term Loan B holders are not generally entitled to the benefits of the financial covenants under the 
Credit Agreement.

Principal payments on the Term Loan B are to be paid in quarterly installments of $1.8 million per quarter during the period June 
30, 2018 through December 31, 2025, with the balance due on January 2, 2026. The Term Loan B may be prepaid without penalty 
at any time. The Term Loan B bears interest at a rate of LIBOR plus 1.75%. As of December 31, 2020, we had $679.6 million 
aggregate outstanding principal amount under the Term Loan B. The interest rate in effect under Term Loan B as of December 31, 
2020 was 1.9%.

JUNE 2020 OFFERINGS

On June 22, 2020, IMI completed private offerings of (i) $500.0 million in aggregate principal amount of the 5% Notes, (ii) $1,300.0 
million in aggregate principal amount of the 51/4% Notes due 2030 and (iii) $600.0 million in aggregate principal amount of the 
55/8% Notes (collectively, the “June 2020 Offerings”). The 5% Notes, the 51/4% Notes due 2030 and the 55/8% Notes were issued at 
100.000% of par. The total net proceeds of approximately $2,376.0 million from the June 2020 Offerings, after deducting the initial 
purchasers’ commissions, were used to redeem all of the 43/8% Senior Notes due 2021 (“the 43/8% Notes”), the 6% Senior Notes 
due 2023 (the “6% Notes”) and the 53/4% Senior Subordinated Notes due 2024 (the "53/4% Notes”) and to repay a portion of the 
outstanding borrowings under the Revolving Credit Facility.

On June 29, 2020, we redeemed all of the $500.0 million in aggregate principal outstanding of the 43/8% Notes at 100.000% of par 
and all of the $600.0 million in aggregate principal outstanding of the 6% Notes at 102.000% of par, plus, in each case, accrued 
and unpaid interest to, but excluding, the redemption date. We recorded a charge of approximately $17.0 million to Other expense 
(income), net during the second quarter of 2020 related to the early extinguishment of this debt, representing the call premium 
associated with the early redemption of the 6% Notes, as well as a write-off of unamortized deferred financing costs associated 
with the early redemption of the 43/8% Notes and the 6% Notes.
On July 2, 2020, we redeemed all of the $1,000.0 million in aggregate principal outstanding of the 53/4% Notes at 100.958% of par, 
plus accrued and unpaid interest to, but excluding, the redemption date. We recorded a charge of approximately $15.3 million to 
Other expense (income), net during the third quarter of 2020 related to the early extinguishment of this debt, representing the call 
premium and write-off of unamortized deferred financing fees.

AUGUST 2020 OFFERING

On August 18, 2020, IMI completed a private offering of $1,100.0 million in aggregate principal amount of the 41/2% Notes. The 
41/2% Notes were issued at 100.000% of par. The total net proceeds of approximately $1,089.0 million from the issuance of the 
41/2% Notes, after deducting the initial purchasers’ commissions, were used to redeem all of the 53/8% CAD Senior Notes due 2023 
(the “CAD Notes”), the 3% Euro Senior Notes due 2025 (the “Euro Notes”) and the 53/8% Senior Notes due 2026 (the “53/8% 
Notes”) and to repay a portion of the outstanding borrowings under the Revolving Credit Facility.

On August 21, 2020, we redeemed all of the 250.0 million CAD in aggregate principal outstanding of the CAD Notes at 104.031% 
of par, 300.0 million Euro in aggregate principal outstanding of the Euro Notes at 101.500% of par and $250.0 million in aggregate 
principal outstanding of the 53/8% Notes at 106.628% of par, plus, in each case accrued and unpaid interest to, but excluding, the 
redemption date. We recorded a charge of approximately $36.0 million to Other expense (income), net during the third quarter of 
2020 related to the early extinguishment of the CAD Notes, the Euro Notes and the 53/8% Notes, representing the call premiums 
and write off unamortized deferred financing costs associated with the early redemption of these debt instruments.

ACCOUNTS RECEIVABLE SECURITIZATION PROGRAM

We participate in an accounts receivable securitization program (the “Accounts Receivable Securitization Program”) involving 
several of our wholly owned subsidiaries and certain financial institutions. Under the Accounts Receivable Securitization Program, 
certain of our subsidiaries sell substantially all of their United States accounts receivable balances to our wholly owned special 
purpose entities, Iron Mountain Receivables QRS, LLC and Iron Mountain Receivables TRS, LLC (the “Accounts Receivable 
Securitization Special Purpose Subsidiaries”). The Accounts Receivable Securitization Special Purpose Subsidiaries use the 
accounts receivable balances to collateralize loans obtained from certain financial institutions. The Accounts Receivable 
Securitization Special Purpose Subsidiaries are consolidated subsidiaries of IMI. IMIM retains the responsibility of servicing the 
accounts receivable balances pledged as collateral for the Accounts Receivable Securitization Program and IMI provides a 
performance guaranty. The maximum availability allowed is limited by eligible accounts receivable, as defined under the terms of 
the Accounts Receivable Securitization Program. 

IRON MOUNTAIN 2020 FORM 10-K

53

Table of Contents

Part II

On March 31, 2020, we amended the Accounts Receivable Securitization Program to (i) increase the maximum amount available 
from $275.0 million to $300.0 million and (ii) extend the maturity date from July 30, 2020 to July 30, 2021, at which point all 
obligations become due. The full amount outstanding under the Accounts Receivable Securitization Program is classified within the 
current portion of long-term debt in our Consolidated Balance Sheet as of December 31, 2020. As of December 31, 2020, the 
maximum availability allowed and amount outstanding under the Accounts Receivable Securitization Program was $274.1 million 
and $85.0 million, respectively. The interest rate in effect under the Accounts Receivable Securitization Program was 1.1% as of 
December 31, 2020. Commitment fees at a rate of 40 basis points are charged on amounts made available but not borrowed under 
the Accounts Receivable Securitization Program. 

LETTERS OF CREDIT

As of December 31, 2020, we had outstanding letters of credit totaling $36.2 million, of which $3.2 million reduce our borrowing 
capacity under the Revolving Credit Facility (as described above). The letters of credit expire at various dates between January 
2021 and January 2033.

DEBT COVENANTS

The Credit Agreement (as defined in Note 6 to Notes of Consolidated Financial Statements included in this Annual Report), our 
bond indentures and other agreements governing our indebtedness contain certain restrictive financial and operating covenants, 
including covenants that restrict our ability to complete acquisitions, pay cash dividends, incur indebtedness, make investments, 
sell assets and take certain other corporate actions. The covenants do not contain a rating trigger. Therefore, a change in our debt 
rating would not trigger a default under the Credit Agreement, our bond indentures or other agreements governing our 
indebtedness. The Credit Agreement requires that we satisfy a fixed charge coverage ratio, a net total lease adjusted leverage ratio 
and a net secured debt lease adjusted leverage ratio on a quarterly basis and our bond indentures require that, among other 
things, we satisfy a leverage ratio (not lease adjusted) or a fixed charge coverage ratio (not lease adjusted), as a condition to taking 
actions such as paying dividends and incurring indebtedness.

The Credit Agreement uses EBITDAR-based calculations and the bond indentures use EBITDA-based calculations as the primary 
measures of financial performance for purposes of calculating leverage and fixed charge coverage ratios. The bond indenture 
EBITDA-based calculations include our consolidated subsidiaries, other than those we have designated as “Unrestricted 
Subsidiaries” as defined in the bond indentures. Generally, the Credit Agreement and the bond indentures use a trailing four fiscal 
quarter basis for purposes of the relevant calculations and require certain adjustments and exclusions for purposes of those 
calculations, which make the calculation of financial performance for purposes of those calculations under the Credit Agreement 
and bond indentures not directly comparable to Adjusted EBITDA as presented herein. These adjustments can be significant. For 
example, the calculation of financial performance under the Credit Agreement and certain of our bond indentures includes (subject 
to specified exceptions and caps) adjustments for non-cash charges and for expected benefits associated with (i) completed 
acquisitions, (ii) certain executed lease agreements associated with our data center business that have yet to commence, and (iii) 
restructuring and other strategic initiatives, such as Project Summit. The calculation of financial performance under our other bond 
indentures includes, for example, adjustments for non-cash charges and for expected benefits associated with (i) completed 
acquisitions, and (ii) events that are extraordinary, unusual or non-recurring, such as the COVID-19 pandemic.

Our leverage and fixed charge coverage ratios under the Credit Agreement and our indentures as of December 31, 2020 are as 
follows:

Net total lease adjusted leverage ratio

Net secured debt lease adjusted leverage ratio

Fixed charge coverage ratio

Bond leverage ratio (not lease adjusted)

Bond fixed charge coverage ratio (not lease adjusted)

DECEMBER 31, 2020 MAXIMUM/MINIMUM ALLOWABLE

5.3

1.9

2.3

5.9

3.2

Maximum allowable of 6.5

Maximum allowable of 4.0

Minimum allowable of 1.5
Maximum allowable of 7.0(1)
Minimum allowable of 2.0(1)

(1) The maximum allowable leverage ratio under our indentures for the GBP Notes due 2025, the 47/8% Notes due 2027, the 51/4% Notes due 2028 and the 47/8% Notes 
due 2029 is 7.0. As of December 31, 2020, we no longer have any indentures subject to a maximum leverage ratio of 6.5. The indentures for the 5% Notes, the 51/4% 
Notes due 2030, the 41/2% Notes and the 55/8% Notes do not include a maximum leverage ratio covenant; the indentures for these notes instead require us to 
maintain a minimum fixed charge coverage ratio of 2.0. In certain instances as provided in our indentures, we have the ability to incur additional indebtedness that 
would result in our bond leverage ratio or bond fixed charge coverage ratio exceeding or falling below the maximum or minimum permitted ratio under our indentures 
and still remain in compliance with the applicable covenant.

Noncompliance with these leverage and fixed charge coverage ratios would have a material adverse effect on our financial 
condition and liquidity.

___________________________________________________________________________________________________

Our ability to pay interest on or to refinance our indebtedness depends on our future performance, working capital levels and 
capital structure, which are subject to general economic, financial, competitive, legislative, regulatory and other factors which may 
be beyond our control. There can be no assurance that we will generate sufficient cash flow from our operations or that future 
financings will be available on acceptable terms or in amounts sufficient to enable us to service or refinance our indebtedness or to 
make necessary capital expenditures.

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DERIVATIVE INSTRUMENTS

INTEREST RATE SWAP AGREEMENTS

Part II

In March 2018, we entered into interest rate swap agreements to limit our exposure to changes in interest rates on a portion of our 
floating rate indebtedness. As of December 31, 2020, we had $350.0 million in notional value of interest rate swap agreements 
outstanding, which expire in March 2022. Under the interest rate swap agreements, we receive variable rate interest payments 
associated with the notional amount of each interest rate swap, based upon one-month LIBOR, in exchange for the payment of 
fixed interest rates as specified in the interest rate swap agreements. 

In July 2019, we entered into forward-starting interest rate swap agreements to limit our exposure to changes in interest rates on a 
portion of our floating rate indebtedness once our current interest rate swap agreements expire in March 2022. The forward-starting 
interest rate swap agreements have $350.0 million in notional value, commence in March 2022 and expire in March 2024. Under 
the swap agreements, we will receive variable rate interest payments based upon one-month LIBOR, in exchange for the payment 
of fixed interest rates as specified in the interest rate swap agreements. 

We have designated these interest rate swap agreements, including the forward-starting interest rate swap agreements, as cash 
flow hedges. 

CROSS-CURRENCY SWAP AGREEMENTS

We enter into cross-currency swap agreements to hedge the variability of exchange rate impacts between the United States dollar 
and the Euro. The cross-currency swap agreements are designated as a hedge of net investment against certain of our Euro 
denominated subsidiaries and require an exchange of the notional amounts at maturity.

In August 2019, we entered into cross-currency swap agreements whereby we notionally exchanged approximately $110.0 million 
at an interest rate of 6.0% for approximately 99.1 million Euros at a weighted average interest rate of approximately 3.65%. These 
cross-currency swap agreements expire in August 2023.

In September 2020, we entered into cross-currency swap agreements whereby we notionally exchanged approximately $359.2 
million at an interest rate of 4.5% for approximately 300.0 million Euros at a weighted average interest rate of approximately 3.4%. 
These cross-currency swap agreements expire in February 2026.

See Note 5 to Notes to Consolidated Financial Statements included in this Annual Report for additional information on our 
derivative instruments. 

EQUITY FINANCING

In 2017, we entered into a Distribution Agreement with the Agents pursuant to which we may sell, from time to time, up to an 
aggregate sales price of $500.0 million of our common stock through the At The Market (ATM) Equity Program. Sales of our 
common stock made pursuant to the Distribution Agreement may be made in negotiated transactions or transactions that are 
deemed to be “at the market” offerings as defined in Rule 415 under the Securities Act, including sales made directly on the NYSE, 
or sales made to or through a market maker other than on an exchange, or as otherwise agreed between the applicable Agent and 
us. We intend to use the net proceeds from sales of our common stock pursuant to the At The Market (ATM) Equity Program for 
general corporate purposes, which may include acquisitions and investments, including acquisitions and investments in our Global 
Data Center Business, and repaying amounts outstanding from time to time under the Revolving Credit Facility.

During the quarter and year ended December 31, 2020, there were no shares of common stock sold under the At The Market 
(ATM) Equity Program. As of December 31, 2020, the remaining aggregate sale price of shares of our common stock available for 
distribution under the At The Market (ATM) Equity Program was approximately $431.2 million.

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Part II

ACQUISITIONS AND JOINT VENTURES

See Note 3 to Notes to Consolidated Financial Statements included in this Annual Report for information regarding our 2020 
acquisitions and joint ventures.

OSG ACQUISITION

On January 9, 2020, we completed the acquisition of OSG Records Management (Europe) Limited ("OSG" and such acquisition, 
the "OSG Acquisition") for cash consideration of approximately $95.5 million. The OSG Acquisition enabled us to extend our Global 
RIM Business in Russia, Ukraine, Kazakhstan, Belarus, and Armenia. The results of OSG are fully consolidated within our 
consolidated financial statements from the closing date of the OSG Acquisition.

GLENBEIGH ACQUISITION

On February 17, 2020, in order to enhance our existing operations in the United Arab Emirates, we acquired Glenbeigh Records 
Management DWC-LLC, a storage and records management company, for total cash consideration of approximately $29.1 million.

MAKESPACE JV CAPITAL CONTRIBUTION

In March 2019, we formed the MakeSpace JV with MakeSpace Labs, Inc. In the second quarter of 2020, we committed to 
participate in a round of equity funding for the MakeSpace JV whereby we agreed to contribute $36.0 million of the $45.0 million 
being raised in installments beginning in May 2020 through October 2021. We account for our investment in the MakeSpace JV as 
an equity method investment, and the carrying value is presented as a component of Other within Other assets, net in our 
Consolidated Balance Sheet. At December 31, 2020, we owned approximately 39% of the outstanding equity in the MakeSpace JV 
and the carrying value of our investment in the MakeSpace JV at December 31, 2020 was approximately $16.9 million.

FORMATION OF FRANKFURT JOINT VENTURE

In October 2020, we formed a joint venture (the "Frankfurt JV") with AGC Equity Partners ("AGC") to design and develop a 280,000 
square foot, 27 megawatt, hyperscale data center currently under development in Frankfurt, Germany (the “Frankfurt JV 
Transaction”). AGC acquired an 80% equity interest in the Frankfurt JV, while we retained a 20% equity interest (the "Frankfurt JV 
Investment"). The total cash consideration for the 80% equity interest sold to AGC was approximately $105.0 million. We received 
approximately $93.3 million (gross of certain transaction expenses) upon the closing of the Frankfurt JV, and we are entitled to 
receive an additional approximately $11.7 million upon the completion of development of the data center, which we expect to occur 
in the second quarter of 2021. As a result of the Frankfurt JV Transaction, we recognized a gain of approximately $24.1 million, 
representing the excess of the fair value of the consideration received over the carrying value of the assets, which consisted 
primarily of land and land development assets which were previously included within our Global Data Center Business segment.

We account for our Frankfurt JV Investment as an equity method investment. At the closing date of the Frankfurt JV Transaction, 
the fair value of the Frankfurt JV Investment was approximately $23.3 million. The carrying value of our Frankfurt JV Investment at 
December 31, 2020 was $26.5 million, which is presented as a component of Other within Other assets, net in our Consolidated 
Balance Sheet.

NET OPERATING LOSSES

At December 31, 2020, we have federal and state net operating loss carryforwards of which we are expecting an insignificant tax 
benefit to be realized. We have assets for foreign net operating losses of $92.1 million, with various expiration dates (and in some 
cases no expiration date), subject to a valuation allowance of approximately 43%.

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Part II

ITEM 7A. QUANTITATIVE AND QUALITATIVE 
DISCLOSURES ABOUT MARKET RISK.

CREDIT RISK

Financial instruments that potentially subject us to credit risk consist principally of cash and cash equivalents (including money 
market funds and time deposits) and accounts receivable. The only significant concentrations of liquid investments as of 
December 31, 2020 relate to cash and cash equivalents held in money market funds with four “Triple A” rated money market funds 
and time deposits with one global bank. As per our risk management investment policy, we limit exposure to concentration of credit 
risk by limiting the amount invested in any one mutual fund to a maximum of 1% of the fund's total assets or in any one financial 
institution to a maximum of $75.0 million. As of December 31, 2020, our cash and cash equivalents balance, including restricted 
cash, was $205.1 million.

INTEREST RATE RISK

Given the recurring nature of our revenues and the long-term nature of our asset base, we have the ability and the preference to 
use long-term, fixed interest rate debt to finance our business at attractive rates, thereby helping to preserve our long-term returns 
on invested capital. Occasionally, we may use interest rate swaps as a tool to maintain our targeted level of fixed rate debt.

As of December 31, 2020, we had $1,108.1 million of variable rate debt outstanding with a weighted average variable interest rate 
of approximately 3.1%, and $7,689.3 million of fixed rate debt outstanding. As of December 31, 2020, approximately 87% of our 
total debt outstanding was fixed. If the weighted average variable interest rate on our variable rate debt had increased by 1%, our 
net income for the year ended December 31, 2020 would have been reduced by approximately $13.8 million. 

See Note 5 to Notes to Consolidated Financial Statements included in this Annual Report for a discussion on our interest rate 
swaps and Note 6 to Notes to Consolidated Financial Statements included in this Annual Report for a discussion of our long-term 
indebtedness, including the fair values of such indebtedness as of December 31, 2020.

CURRENCY RISK 

Our international investments may be subject to risks and uncertainties related to fluctuations in currency valuation. Our reporting 
currency is the United States dollar. However, our international revenues and expenses are generated in the currencies of the 
countries in which we operate, primarily the British pound sterling, Euro, Canadian dollar, Brazilian real and the Australian dollar. 
Declines in the value of the local currencies in which we are paid relative to the United States dollar will cause revenues in United 
States dollar terms to decrease and dollar-denominated liabilities to increase in local currency.

The impact of currency fluctuations on our earnings is mitigated by the fact that most operating and other expenses are also 
incurred and paid in the local currency. We also have several intercompany obligations between our foreign subsidiaries and IMI 
and our United States-based subsidiaries. In addition, our foreign subsidiaries and IME also have intercompany obligations 
between them. These intercompany obligations are primarily denominated in the local currency of the foreign subsidiary.

We have adopted and implemented a number of strategies to mitigate the risks associated with fluctuations in foreign currency 
exchange rates. One strategy is to finance certain of our international subsidiaries with debt that is denominated in local currencies, 
thereby providing a natural hedge. In determining the amount of any such financing, we take into account local tax considerations, 
among other factors. Another strategy we utilize is for IMI or IMIM, a wholly-owned subsidiary of IMI, to borrow in foreign currencies 
to hedge our intercompany financing activities. In addition, on occasion, we enter into currency swaps to temporarily or 
permanently hedge an overseas investment, such as a major acquisition, to lock in certain transaction economics. We have 
implemented these strategies for our foreign investments in the United Kingdom, Canada, Australia, Latin America and continental 
Europe. IM UK has financed a portion of its capital needs through the issuance in British pounds sterling of the GBP Notes due 
2025. Our Australian business has financed a portion of its capital needs through direct borrowings in Australian dollars under the 
AUD Term Loan. This creates a tax efficient natural currency hedge. 

Prior to their redemption in August 2020, we had designated a portion of our previously outstanding Euro Notes as a hedge of net 
investment of certain of our Euro denominated subsidiaries. As a result, we recorded $17.0 million ($17.0 million net of tax) of 
foreign exchange losses related to the “marking-to-market” of such debt to currency translation adjustments which is a component 
of Accumulated other comprehensive items, net included in our Consolidated Balance Sheet for the year ended December 31, 
2020. As of December 31, 2020, cumulative net gains of $3.3 million, net of tax are recorded in Accumulated other comprehensive 
items, net associated with this net investment hedge.

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Part II

We have entered into cross-currency swap agreements to hedge the variability of exchange rate impacts between the United 
States dollar and the Euro. These cross-currency swap agreements are designated as a hedge of net investment against certain of 
our Euro denominated subsidiaries and require an exchange of the notional amounts at maturity. These cross-currency swaps are 
marked to market at the end of each reporting period and any changes in fair value are recorded as a component of Accumulated 
other comprehensive items, net. Unrealized gains are recognized as assets, which are recorded as a component of Other within 
Other assets, net, while unrecognized losses are recognized as liabilities, which are recorded as a component of Other long-term 
liabilities in our Consolidated Balance Sheets. 

See Note 5 to Notes to Consolidated Financial Statements included in this Annual Report for a discussion on our cross-currency 
swap agreements.

As of and during the year ending December 31, 2020, we had no outstanding forward contracts. At the maturity of any forward 
contract, we may enter into a new forward contract to hedge movements in the underlying currencies. At the time of settlement, we 
either pay or receive the net settlement amount from any forward contract and recognize this amount in Other expense (income), 
net in the accompanying statements of operations as a realized foreign exchange gain or loss. At the end of each month, we mark 
the outstanding forward contracts to market and record an unrealized foreign exchange gain or loss for the mark-to-market 
valuation. Historically, we have not designated any of the forward contracts we have entered as hedges.

The impact of devaluation or depreciating currency on an entity depends on the residual effect on the local economy and the ability 
of an entity to raise prices and/or reduce expenses. Due to our constantly changing currency exposure and the potential substantial 
volatility of currency exchange rates, we cannot predict the effect of exchange fluctuations on our business. The effect of a change 
in foreign currency exchange rates on our net investment in foreign subsidiaries is reflected in the “Accumulated Other 
Comprehensive Items, net” component of equity. A 10% depreciation in year-end 2020 functional currencies, relative to the United 
States dollar, would result in a reduction in our equity of approximately $286.5 million.

ITEM 8. FINANCIAL STATEMENTS AND 
SUPPLEMENTARY DATA.

The information required by this item is included in Item 15(a) of this Annual Report.

ITEM 9. CHANGES IN AND DISAGREEMENTS WITH 
ACCOUNTANTS ON ACCOUNTING AND FINANCIAL 
DISCLOSURE.

None.

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Part II

ITEM 9A. CONTROLS AND PROCEDURES. 

DISCLOSURE CONTROLS AND PROCEDURES

The term “disclosure controls and procedures” is defined in Rules 13a-15(e) and 15d-15(e) of the Exchange Act. These rules refer 
to the controls and other procedures of a company that are designed to ensure that information is recorded, processed, 
accumulated, summarized, communicated and reported to management, including its principal executive and principal financial 
officers, as appropriate to allow timely decisions regarding what is required to be disclosed by a company in the reports that it files 
under the Exchange Act. As of December 31, 2020 (the “Evaluation Date”), we carried out an evaluation, under the supervision and 
with the participation of our management, including our chief executive officer and chief financial officer, of the effectiveness of our 
disclosure controls and procedures. Based upon that evaluation, our chief executive officer and chief financial officer concluded 
that, as of the Evaluation Date, our disclosure controls and procedures are effective.

MANAGEMENT’S REPORT ON INTERNAL CONTROL OVER 
FINANCIAL REPORTING

Our management, with the participation of our principal executive officer and principal financial officer, is responsible for 
establishing and maintaining adequate internal control over financial reporting as defined in Rules 13a-15(f) and 15d-15(f) of the 
Exchange Act. Our internal control system is designed to provide reasonable assurance to our management and board of directors 
regarding the preparation and fair presentation of published financial statements. Due to their inherent limitations, internal control 
over financial reporting may not prevent or detect misstatements. Projections of any evaluation of effectiveness to future periods 
are subject to the risks that controls may become inadequate because of changes in conditions or that the degree of compliance 
with policies or procedures may deteriorate. Under the supervision and with the participation of our management, including our 
chief executive officer and chief financial officer, we conducted an evaluation of the effectiveness of our internal control over 
financial reporting based on the framework in Internal Control—Integrated Framework (2013) issued by the Committee of 
Sponsoring Organizations of the Treadway Commission. Based on this evaluation, our management concluded that our internal 
control over financial reporting was effective as of December 31, 2020.

The effectiveness of our internal control over financial reporting has been audited by Deloitte & Touche LLP, an independent 
registered public accounting firm, as stated in their report which is included in this Annual Report.

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Part II

REPORT OF INDEPENDENT REGISTERED PUBLIC 
ACCOUNTING FIRM 

To the shareholders and the Board of Directors of Iron Mountain Incorporated

OPINION ON INTERNAL CONTROL OVER FINANCIAL REPORTING

We have audited the internal control over financial reporting of Iron Mountain Incorporated and subsidiaries (the “Company”) as of 
December 31, 2020, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of 
Sponsoring Organizations of the Treadway Commission (COSO). In our opinion, the Company maintained, in all material respects, 
effective internal control over financial reporting as of December 31, 2020, based on criteria established in Internal Control - 
Integrated Framework (2013) issued by COSO. 

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) 
(PCAOB), the consolidated financial statements as of and for the year ended December 31, 2020, of the Company and our report 
dated February 24, 2021, expressed an unqualified opinion on those financial statements. 

BASIS FOR OPINION

The Company’s management is responsible for maintaining effective internal control over financial reporting and for its assessment 
of the effectiveness of internal control over financial reporting, included in the accompanying Management’s Report on Internal 
Control over Financial Reporting. Our responsibility is to express an opinion on the Company’s internal control over financial 
reporting based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with 
respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the 
Securities and Exchange Commission and the PCAOB.

We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the 
audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material 
respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a 
material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed 
risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a 
reasonable basis for our opinion.

DEFINITION AND LIMITATIONS OF INTERNAL CONTROL OVER FINANCIAL 
REPORTING

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability 
of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted 
accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain 
to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets 
of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial 
statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are 
being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable 
assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that 
could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, 
projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate 
because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

/s/ DELOITTE & TOUCHE LLP

Boston, Massachusetts
February 24, 2021

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CHANGES IN INTERNAL CONTROL OVER FINANCIAL 
REPORTING

Our management, with the participation of our principal executive officer and principal financial officer, is responsible for 
establishing and maintaining adequate internal control over financial reporting as defined in Rules 13a-15(f) and 15d-15(f) of the 
Exchange Act. Our internal control system is designed to provide reasonable assurance to our management and board of directors 
regarding the preparation and fair presentation of published financial statements.

There were no changes in our internal control over financial reporting (as defined in Rule 13a-15(f) of the Exchange Act) during the 
quarter ended December 31, 2020 that have materially affected, or are reasonably likely to materially affect, our internal control 
over financial reporting.

ITEM 9B. OTHER INFORMATION.

Disclosure Pursuant to Section 13(r) of the Exchange Act

Section 219 of the Iran Threat Reduction and Syria Human Rights Act of 2012 and Section 13(r) of the Exchange Act require an 
issuer to disclose in its annual and quarterly reports whether it or any of its affiliates have knowingly engaged in certain activities, 
including specified activities or transactions relating to the Government of Iran (as defined in section 560.304 of title 31 of the Code 
of Federal Regulations) and to persons designated under Executive Order No. 13382 (70 Fed. Reg. 38567). As previously 
disclosed in our Quarterly Reports on Form 10-Q for the quarters ended March 31, 2020 and June 30, 2020 (the “2020 Quarterly 
Reports”), during the first quarter of 2020, we determined that one of our non-U.S. subsidiaries provided limited hard copy record, 
electronic media (e.g., CD), box and container storage and handling services during such quarter, and in prior periods since the 
reporting requirement took effect, to at least one Government of Iran entity and one entity designated under Executive Order No. 
13382 - both located outside of Iran. In each case, the customer relationship commenced at a time when U.S. sanctions law did not 
limit dealings with entities determined to be part of the Government of Iran or designated under Executive Order No. 13382 by non-
U.S. entities owned or controlled by U.S. persons. Each relationship automatically continued from year to year without any 
affirmative step being taken by either party.

We also reported in the 2020 Quarterly Reports that we had notified the U.S. Department of the Treasury’s Office of Foreign Assets 
Control (“OFAC”) of these limited activities and initiated an internal investigation, and, during that investigation, we had identified 
two additional customer relationships between the subsidiary in question and entities designated under Executive Order No. 13382 
and Executive Order No. 13224, neither of which was active and ongoing during the year ended December 31, 2020. We have 
been actively cooperating with OFAC in its review of this matter.

During the second quarter of 2020, the subsidiary in question notified both entities with active relationships identified during the first 
quarter of 2020 of its decision to terminate those relationships. Because we consider property held in storage for these two entities 
to be blocked property under regulations administered by OFAC, the subsidiary in question continues to hold the boxes and will do 
so in accordance with applicable rules and regulations. Following termination of the relationships, the subsidiary in question 
received cash of less than 2,000 British pounds sterling from one of the entities for services provided and invoiced prior to the 
termination. The subsidiary is treating this money as blocked property. The subsidiary has not engaged in any other activity with the 
entities during the period covered by this report. Consistent with the disclosure contained in the 2020 Quarterly Reports, we do not 
intend to continue any activity involving the entities in question.

The gross revenues attributable to the services provided to these entities while the entities were designated under Executive Order 
No. 13382 and Executive Order No. 13224 were less than 30,000 British pounds sterling in the aggregate. It is not possible to 
determine the exact amount of profits attributable to these services, but the net profits are less than the associated revenues.  

Following the year ended December 31, 2020, we submitted a Final Notice of Voluntary Disclosure (“Final VSD”) with OFAC on 
January 14, 2021. The Final VSD included a detailed overview of our internal investigation and the remedial measures we have 
implemented or will be implementing to address the root causes of the potentially violative activity. The Final VSD findings showed 
that the potential violations were inadvertent. We will continue to cooperate fully with OFAC in its ongoing review of this matter. 

We continue to enhance our internal processes and procedures designed to identify transactions associated with restricted parties, 
such as introducing a Global International Sanctions and Trade Law Policy and engaging a more comprehensive third-party 
screening provider. We are also supplementing our existing compliance training with the launch of global training on sanctions and 
restricted parties in the first quarter of 2021. We will continue to review and improve our programs and processes, as necessary or 
appropriate, to comply with all applicable sanctions laws and to comply with the disclosure requirements of Section 13(r) of the 
Exchange Act.  

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PART III

ITEM 10. DIRECTORS, EXECUTIVE OFFICERS AND 
CORPORATE GOVERNANCE.

The information required by Item 10 is incorporated by reference to our Proxy Statement.

ITEM 11. EXECUTIVE COMPENSATION.

The information required by Item 11 is incorporated by reference to our Proxy Statement.

ITEM 12. SECURITY OWNERSHIP OF CERTAIN 
BENEFICIAL OWNERS AND MANAGEMENT AND 
RELATED STOCKHOLDER MATTERS.

The information required by Item 12 is incorporated by reference to our Proxy Statement.

ITEM 13. CERTAIN RELATIONSHIPS AND RELATED 
TRANSACTIONS, AND DIRECTOR INDEPENDENCE.

The information required by Item 13 is incorporated by reference to our Proxy Statement.

ITEM 14. PRINCIPAL ACCOUNTANT FEES AND 
SERVICES. 

The information required by Item 14 is incorporated by reference to our Proxy Statement.

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PART IV

ITEM 15. EXHIBITS AND FINANCIAL STATEMENT 
SCHEDULES.

(a) Financial Statements filed as part of this report:

IRON MOUNTAIN INCORPORATED

Report of Independent Registered Public Accounting Firm

Consolidated Balance Sheets, December 31, 2020 and 2019

Consolidated Statements of Operations, Years Ended December 31, 2020, 2019 and 2018

Consolidated Statements of Comprehensive Income (Loss), Years Ended December 31, 2020, 2019 and 2018

Consolidated Statements of Equity, Years Ended December 31, 2020, 2019 and 2018

Consolidated Statements of Cash Flows, Years Ended December 31, 2020, 2019 and 2018

Notes to Consolidated Financial Statements

Financial Statement Schedule III—Schedule of Real Estate and Accumulated Depreciation

PAGE

66

68

69

70

71

72

73

125

(b) Exhibits filed as part of this report: As listed in the Exhibit Index following the Financial Statement Schedule III-Schedule of 

Real Estate and Accumulated Depreciation.

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REPORT OF INDEPENDENT REGISTERED PUBLIC 
ACCOUNTING FIRM 

To the shareholders and the Board of Directors of Iron Mountain Incorporated

OPINION ON THE FINANCIAL STATEMENTS

We have audited the accompanying consolidated balance sheets of Iron Mountain Incorporated and subsidiaries (the “Company”) 
as of December 31, 2020 and 2019, the related consolidated statements of operations, comprehensive income (loss), equity, and 
cash flows, for each of the three years in the period ended December 31, 2020, and the related notes and the schedule listed in the 
Index at Item 15 (collectively referred to as the “financial statements”). In our opinion, the financial statements present fairly, in all 
material respects, the financial position of the Company as of December 31, 2020 and 2019, and the results of its operations and 
its cash flows for each of the three years in the period ended December 31, 2020, in conformity with accounting principles generally 
accepted in the United States of America.

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) 
(PCAOB), the Company’s internal control over financial reporting as of December 31, 2020, based on criteria established in 
Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission 
and our report dated February 24, 2021, expressed an unqualified opinion on the Company’s internal control over financial 
reporting.

BASIS FOR OPINION

These financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on the 
Company’s financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required 
to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and 
regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the 
audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to 
error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the financial statements, 
whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a 
test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the 
accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the 
financial statements. We believe that our audits provide a reasonable basis for our opinion.

CRITICAL AUDIT MATTER

The critical audit matter communicated below is a matter arising from the current-period audit of the financial statements that was 
communicated or required to be communicated to the audit committee and that (1) relates to accounts or disclosures that are 
material to the financial statements and (2) involved our especially challenging, subjective, or complex judgments. The 
communication of critical audit matters does not alter in any way our opinion on the financial statements, taken as a whole, and we 
are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the 
accounts or disclosures to which it relates.

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Part IV

GOODWILL - GLOBAL DATA CENTER REPORTING UNIT - REFER TO NOTE 2.K. TO THE 
FINANCIAL STATEMENTS 

CRITICAL AUDIT MATTER DESCRIPTION
The Company’s evaluation of goodwill for impairment involves the comparison of the fair value of each reporting unit to its carrying 
value. The Company determined the fair value of the Global Data Center reporting unit using a combined approach based on the 
present value of future cash flows (the “Discounted Cash Flow Model”) and market multiples (the “Market Approach”). The 
determination of the fair value using the Discounted Cash Flow Model requires management to make significant assumptions 
related to future revenue growth rates, operating margins, discount rates and capital expenditures. The determination of the fair 
value using the Market Approach requires management to make significant assumptions related to adjusted earnings before 
interest, taxes, depreciation and amortization (“Adjusted EBITDA”) multiples. Changes in economic and operating conditions 
impacting these assumptions or changes in multiples could result in goodwill impairments in future periods. The goodwill balance 
allocated to the Global Data Center reporting unit was $431 million as of October 1, 2020 (goodwill impairment testing date). The 
fair value of the Global Data Center reporting unit exceeded its carrying value as of the measurement date and, therefore, no 
impairment was recognized.

The Global Data Center reporting unit’s fair value exceeded its carrying value by less than 10%, accordingly, auditing the 
assumptions used in the goodwill impairment analysis for this reporting unit involved especially subjective judgment.

HOW THE CRITICAL AUDIT MATTER WAS ADDRESSED IN THE AUDIT
Our audit procedures related to future revenue growth rates, operating margins and capital expenditures (collectively, the 
“Forecast”), Adjusted EBITDA multiples and the selection of discount rates for the Global Data Center reporting unit included the 
following, among others: 

• We tested the effectiveness of controls over the evaluation of goodwill for impairment, including those over the Forecast and the 

selection of the Adjusted EBITDA multiples and discount rates. 

• We evaluated management’s ability to accurately forecast by comparing actual results to management’s historical forecasts. 

• We evaluated the reasonableness of management’s Forecast by comparing it to (1) historical results, (2) internal 

communications to management and the Board of Directors, and (3) forecasted information included in Company press releases 
and industry reports of the Company and companies in its peer group.

• With the assistance of our fair value specialists, we evaluated the Adjusted EBITDA multiples, including testing the underlying 
source information and mathematical accuracy of the calculations and comparing the multiples selected by management to its 
guideline companies.

• With the assistance of our fair value specialists, we evaluated the discount rates, including testing the underlying source 

information and the mathematical accuracy of the calculations, and developing a range of independent estimates and comparing 
those to the discount rates selected by management.

/s/ DELOITTE & TOUCHE LLP

Boston, Massachusetts
February 24, 2021
We have served as the Company’s auditor since 2002.

IRON MOUNTAIN 2020 FORM 10-K

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Table of Contents

Part IV

IRON MOUNTAIN INCORPORATED
CONSOLIDATED BALANCE SHEETS
(IN THOUSANDS, EXCEPT SHARE AND PER SHARE DATA)

ASSETS

Current Assets:

Cash and cash equivalents

Accounts receivable (less allowances of $56,981 and $42,856 as of December 31, 2020 and 2019, 
respectively)

Prepaid expenses and other

Total Current Assets

Property, plant and equipment

Less—Accumulated depreciation

Property, Plant and Equipment, net

Other Assets, Net:

Goodwill

Customer relationships, customer inducements and data center lease-based intangibles

Operating lease right-of-use assets 

Other

Total Other Assets, Net

Total Assets

LIABILITIES AND EQUITY

Current Liabilities:

Current portion of long-term debt

Accounts payable

Accrued expenses and other current liabilities (includes current portion of operating lease liabilities)

Deferred revenue

Total Current Liabilities

Long-term Debt, net of current portion

Long-term Operating Lease Liabilities, net of current portion

Other Long-term Liabilities

Deferred Income Taxes

Commitments and Contingencies

Redeemable Noncontrolling Interests 

Equity:

Iron Mountain Incorporated Stockholders’ Equity:

Preferred stock (par value $0.01; authorized 10,000,000 shares; none issued and outstanding)

Common stock (par value $0.01; authorized 400,000,000 shares; issued and outstanding 
288,273,049 shares and 287,299,645 shares as of December 31, 2020 and 2019, respectively)

Additional paid-in capital

(Distributions in excess of earnings) Earnings in excess of distributions

Accumulated other comprehensive items, net

Total Iron Mountain Incorporated Stockholders’ Equity

Noncontrolling Interests

Total Equity

Total Liabilities and Equity

DECEMBER 31,

2020

2019

$ 

205,063  $ 

193,555 

859,344 

205,380 

1,269,787 

8,246,337 

850,701 

192,083 

1,236,339 

8,048,906 

(3,743,894) 

(3,425,869) 

4,502,443 

4,623,037 

4,557,609 

1,326,977 

2,196,502 

295,949 

8,377,037 

4,485,209 

1,393,183 

1,869,101 

209,947 

7,957,440 

$ 

14,149,267  $ 

13,816,816 

$ 

193,759  $ 

359,863 

1,146,288 

295,785 

1,995,695 

8,509,555 

2,044,598 

204,508 

198,377 

389,013 

324,708 

961,752 

274,036 

1,949,509 

8,275,566 

1,728,686 

143,018 

188,128 

59,805 

67,682 

— 

2,883 

— 

2,873 

4,340,078 

4,298,566 

(2,950,339) 

(2,574,896) 

(255,893) 

1,136,729 

— 

(262,581) 

1,463,962 

265 

1,136,729 

1,464,227 

$ 

14,149,267  $ 

13,816,816 

The accompanying notes are an integral part of these consolidated financial statements.

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Part IV

IRON MOUNTAIN INCORPORATED
CONSOLIDATED STATEMENTS OF OPERATIONS
(IN THOUSANDS, EXCEPT PER SHARE DATA)

Revenues:

Storage rental

Service

Total Revenues

Operating Expenses:

YEAR ENDED DECEMBER 31,

2020

2019

2018

$ 

2,754,091  $ 

2,681,087  $ 

2,622,455 

1,393,179 

1,581,497 

1,603,306 

4,147,270 

4,262,584 

4,225,761 

Cost of sales (excluding depreciation and amortization)

1,757,342 

1,833,315 

1,793,954 

Selling, general and administrative

Depreciation and amortization

Significant Acquisition Costs

Restructuring Charges

Intangible impairments

(Gain) Loss on disposal/write-down of property, plant and equipment, net

Total Operating Expenses

Operating Income (Loss)

Interest Expense, Net (includes Interest Income of $8,312, $6,559 and $6,553 in 2020, 2019 
and 2018, respectively)

Other Expense (Income), Net

Income (Loss) from Continuing Operations Before Provision (Benefit) for Income Taxes  

Provision (Benefit) for Income Taxes

Income (Loss) from Continuing Operations

Income (Loss) from Discontinued Operations, Net of Tax

Net Income (Loss)

Less: Net Income (Loss) Attributable to Noncontrolling Interests

Net Income (Loss) Attributable to Iron Mountain Incorporated

Earnings (Losses) per Share—Basic:

Income (Loss) from Continuing Operations

Total (Loss) Income from Discontinued Operations, Net of Tax

Net Income (Loss) Attributable to Iron Mountain Incorporated

Earnings (Losses) per Share—Diluted:

Income (Loss) from Continuing Operations

Total (Loss) Income from Discontinued Operations, Net of Tax

Net Income (Loss) Attributable to Iron Mountain Incorporated

Weighted Average Common Shares Outstanding—Basic

Weighted Average Common Shares Outstanding—Diluted

949,215 

652,069 

— 

194,396 

23,000 

991,664 

658,201 

13,293 

48,597 

— 

1,006,983 

639,514 

50,665 

— 

— 

(363,537) 

(63,824) 

(73,622) 

3,212,485 

3,481,246 

3,417,494 

934,785 

781,338 

808,267 

418,535 

143,545 

372,705 

29,609 

343,096 

— 

419,298 

33,898 

328,142 

59,931 

268,211 

104 

343,096 

268,315 

403 

938 

409,648 

(11,692) 

410,311 

42,753 

367,558 

(12,427) 

355,131 

1,198 

$ 

$ 

$ 

$ 

$ 

$ 

$ 

342,693  $ 

267,377  $ 

353,933 

1.19  $ 

0.93  $ 

—  $ 

—  $ 

1.19  $ 

0.93  $ 

1.19  $ 

0.93  $ 

—  $ 

—  $ 

1.19  $ 

0.93  $ 

1.28 

(0.04) 

1.24 

1.28 

(0.04) 

1.23 

288,183 

288,643 

286,971 

287,687 

285,913 

286,653 

The accompanying notes are an integral part of these consolidated financial statements.

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Part IV

IRON MOUNTAIN INCORPORATED
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME 
(LOSS)
(IN THOUSANDS)

Net Income (Loss)

Other Comprehensive Income (Loss):

Foreign Currency Translation Adjustment

Change in Fair Value of Derivative Instruments

Total Other Comprehensive Income (Loss)

Comprehensive Income (Loss)

Comprehensive (Loss) Income Attributable to Noncontrolling Interests

YEAR ENDED DECEMBER 31,

2020

2019

2018

$ 

343,096  $ 

268,315  $ 

355,131 

45,779 

(39,947) 

5,832 

348,928 

(453) 

11,994 

(8,783) 

3,211 

271,526 

1,066 

(164,107) 

(973) 

(165,080) 

190,051 

(2,207) 

Comprehensive Income (Loss) Attributable to Iron Mountain Incorporated

$ 

349,381  $ 

270,460  $ 

192,258 

The accompanying notes are an integral part of these consolidated financial statements.

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Part IV

IRON MOUNTAIN INCORPORATED
CONSOLIDATED STATEMENTS OF EQUITY
(IN THOUSANDS, EXCEPT SHARE DATA)

IRON MOUNTAIN INCORPORATED STOCKHOLDERS’ EQUITY

COMMON STOCK

TOTAL

SHARES

AMOUNTS

ADDITIONAL
PAID-IN
CAPITAL

EARNINGS IN
EXCESS OF
DISTRIBUTIONS
(DISTRIBUTIONS IN
EXCESS OF
EARNINGS)

ACCUMULATED
OTHER
COMPREHENSIVE
ITEMS, NET

NONCONTROLLING
INTERESTS

REDEEMABLE 
NONCONTROLLING 
INTERESTS

Balance, December 31, 2017

$  2,285,134 

 283,110,183 

$ 

2,831 

$  4,164,562 

$ 

(1,779,674)  $ 

(103,989)  $ 

1,404 

$ 

91,418 

(30,233) 

— 

30,020 

762,340 

— 

8 

30,012 

— 

(30,233) 

Cumulative-effect adjustment 
for adoption of ASU 2014-09

Issuance of shares under 
employee stock purchase plan 
and option plans and stock-
based compensation

Issuance of shares in 
connection with the Over-
Allotment Option, net of 
underwriting discounts and 
offering expenses

Issuance of shares through the 
At The Market (ATM) Equity 
Program, net of underwriting 
discounts and offering 
expenses

Changes in equity related 
redeemable noncontrolling 
interests

Parent cash dividends 
declared

Foreign currency translation 
adjustment

Change in fair value of 
derivative instruments

Net income (loss)

Noncontrolling interests 
dividends

76,192 

  2,175,000 

22 

76,170 

8,716 

273,486 

2 

8,714 

(16,110) 

(683,519) 

(160,548) 

(973) 

353,784 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

(16,110) 

— 

— 

— 

— 

— 

— 

— 

— 

— 

(683,519) 

— 

— 

353,933 

— 

— 

— 

— 

— 

— 

— 

(160,702) 

(973) 

— 

— 

— 

— 

— 

— 

— 

— 

154 

— 

(149) 

— 

Balance, December 31, 2018

  1,862,463 

 286,321,009 

2,863 

4,263,348 

(2,139,493) 

(265,664) 

1,409 

Cumulative-effect adjustment 
for adoption of ASU 2016-02 

Issuance of shares under 
employee stock purchase plan 
and option plans and stock-
based compensation

Changes in equity related 
redeemable noncontrolling 
interests 

Parent cash dividends 
declared

Foreign currency translation 
adjustment

Change in fair value of 
derivative instruments

Net income (loss)

Noncontrolling interests 
dividends

5,781 

— 

36,682 

978,636 

(1,454) 

(708,561) 

11,866 

(8,783) 

266,233 

— 

— 

— 

— 

— 

— 

— 

— 

10 

— 

— 

— 

— 

— 

— 

— 

5,781 

36,672 

(1,454) 

— 

— 

— 

— 

— 

— 

— 

(708,561) 

— 

— 

267,377 

— 

— 

— 

— 

— 

11,866 

(8,783) 

— 

— 

Balance, December 31, 2019

  1,464,227 

 287,299,645 

2,873 

4,298,566 

(2,574,896) 

(262,581) 

Issuance of shares under 
employee stock purchase plan 
and option plans and stock-
based compensation

Changes in equity related 
redeemable noncontrolling 
interests

Parent cash dividends 
declared

Foreign currency translation 
adjustment

Change in fair value of 
derivative instruments

Net income (loss)

Noncontrolling interests 
dividends

37,995 

973,404 

10 

37,985 

3,527 

(718,136) 

46,748 

(39,947) 

342,315 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

3,527 

— 

— 

— 

— 

— 

— 

— 

(718,136) 

— 

— 

342,693 

— 

— 

— 

— 

46,635 

(39,947) 

— 

— 

— 

— 

— 

— 

— 

— 

(1,144) 

— 

265 

— 

— 

— 

113 

— 

(378) 

— 

— 

— 

— 

— 

(16,151) 

— 

(3,559) 

— 

1,347 

(2,523) 

70,532 

— 

— 

(3,136) 

— 

128 

— 

2,082 

(1,924) 

67,682 

— 

(4,924) 

— 

(969) 

— 

781 

(2,765) 

Balance, December 31, 2020

$  1,136,729 

 288,273,049 

$ 

2,883 

$  4,340,078 

$ 

(2,950,339)  $ 

(255,893)  $ 

— 

$ 

59,805 

The accompanying notes are an integral part of these consolidated financial statements.

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Part IV

IRON MOUNTAIN INCORPORATED
CONSOLIDATED STATEMENTS OF CASH FLOWS
(IN THOUSANDS)

Cash Flows from Operating Activities:

Net income (loss)

(Income) loss from discontinued operations

YEAR ENDED DECEMBER 31,
2019

2018

2020

$ 

343,096  $ 

268,315  $ 

— 

(104) 

355,131 

12,427 

Adjustments to reconcile net income (loss) to cash flows from operating activities:

Depreciation

447,562 

456,323 

452,740 

Amortization (includes amortization of deferred financing costs and discounts of $17,376, $16,740 and 
$15,675 in 2020, 2019 and 2018, respectively)
Intangible impairments
Revenue reduction associated with amortization of permanent withdrawal fees and data center above- 
and below-market leases
Stock-based compensation expense
(Benefit) provision for deferred income taxes

Loss on early extinguishment of debt

(Gain) loss on disposal/write-down of property, plant and equipment, net 

Foreign currency transactions and other, net
(Increase) decrease in assets
Increase (decrease) in liabilities
Cash Flows from Operating Activities-Continuing Operations
Cash Flows from Operating Activities-Discontinued Operations
Cash Flows from Operating Activities

Cash Flows from Investing Activities:

Capital expenditures 
Cash paid for acquisitions, net of cash acquired
Acquisition of customer relationships
Customer inducements
Contract fulfillment costs and third party commissions
Net proceeds from divestments
Investments in Joint Ventures and other investments

Proceeds from sales of property and equipment and other, net (including real estate) 
Cash Flows from Investing Activities-Continuing Operations
Cash Flows from Investing Activities-Discontinued Operations
Cash Flows from Investing Activities
Cash Flows from Financing Activities:

Repayment of revolving credit facilities, term loan facilities and other debt
Proceeds from revolving credit facilities, term loan facilities and other debt
Early redemption of senior subordinated and senior notes, including call premiums

Net proceeds from sales of senior notes
Debt repayment and equity distribution to noncontrolling interests
Parent cash dividends
Net proceeds associated with the Equity Offering, including Over-Allotment Option
Net proceeds associated with the At The Market (ATM) Program
Net proceeds (payments) associated with employee stock-based awards 
Payment of debt financing and stock issuance costs and other
Cash Flows from Financing Activities-Continuing Operations
Cash Flows from Financing Activities-Discontinued Operations
Cash Flows from Financing Activities

Effect of Exchange Rates on Cash and Cash Equivalents
Increase (decrease) in Cash and Cash Equivalents
Cash and Cash Equivalents, including Restricted Cash, Beginning of Year
Cash and Cash Equivalents, including Restricted Cash, End of Year
Supplemental Information:
Cash Paid for Interest
Cash Paid for Income Taxes, Net
Non-Cash Investing and Financing Activities:

Financing Leases 
Accrued Capital Expenditures
Accrued Purchase Price and Other Holdbacks
Dividends Payable

221,883 
23,000 

9,878 
37,674 
(12,986) 

68,300 

(363,537) 

78,437 
(15,443) 
149,793 
987,657 
— 
987,657 

(438,263) 
(118,581) 
(4,346) 
(10,644) 
(60,020) 
— 
(18,250) 

564,664 
(85,440) 
— 
(85,440) 

218,618 
— 

13,703 
35,654 
(624) 

— 

(63,824) 

29,838 
5,404 
3,352 
966,655 
— 
966,655 

(692,983) 
(58,237) 
(46,105) 
(9,371) 
(76,171) 
— 
(19,222) 

166,143 
(735,946) 
5,061 
(730,885) 

202,449 
— 

16,281 
31,167 
(4,239) 

— 

(74,134) 

(16,395) 
(36,054) 
(2,829) 
936,544 
(995) 
935,549 

(460,062) 
(1,758,557) 
(63,577) 
(8,902) 
(26,208) 
1,019 
— 

86,159 
(2,230,128) 
8,250 
(2,221,878) 

(8,604,394) 
7,939,458 
(2,942,554) 

(14,535,115) 
14,059,818 
— 

(14,192,139) 
15,351,614 
— 

3,465,000 
(2,765) 
(716,290) 
— 
— 
321 
(25,475) 
(886,699) 
— 
(886,699) 
(4,010) 
11,508 
193,555 
205,063  $ 

987,500 
(1,924) 
(704,526) 
— 
— 
1,027 
(5,753) 
(198,973) 
— 
(198,973) 
(8,727) 
28,070 
165,485 
193,555  $ 

390,332  $ 
43,468  $ 

394,984  $ 
61,691  $ 

55,782  $ 
91,528  $ 
—  $ 
187,867  $ 

32,742  $ 
82,345  $ 
4,135  $ 
186,021  $ 

$ 

$ 
$ 

$ 
$ 
$ 
$ 

— 
(2,523) 
(673,635) 
76,192 
8,716 
(1,142) 
(16,405) 
550,678 
— 
550,678 
(24,563) 
(760,214) 
925,699 
165,485 

388,440 
64,493 

83,948 
84,143 
35,218 
181,986 

The accompanying notes are an integral part of these consolidated financial statements.

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Part IV

IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

DECEMBER 31, 2020
(In thousands, except share and per share data) 

1. NATURE OF BUSINESS

The accompanying financial statements represent the consolidated accounts of Iron Mountain Incorporated, a Delaware 
corporation (“IMI”), and its subsidiaries (“we” or “us”). We help organizations around the world protect their information, reduce 
storage costs, comply with regulations, facilitate corporate disaster recovery, and better use their information and information 
technology (“IT”) infrastructure for business advantages, regardless of its format, location or life cycle stage. We do this by storing 
physical records and data backup media, offering information management solutions, and providing data center space for 
enterprise-class colocation and opportunistic hyperscale deployments. We offer comprehensive records and information 
management services and data management services, along with the expertise and experience to address complex storage and 
information management challenges such as rising storage rental costs, legal and regulatory compliance, and disaster recovery 
requirements. We provide secure and reliable data center facilities to protect digital information and ensure the continued operation 
of our customers’ IT infrastructure, with reliable and flexible deployment options.

In March 2020, the World Health Organization declared a novel strain of coronavirus (“COVID-19”) a pandemic. This resulted in 
U.S. federal, state and local and foreign governments and private entities mandating various restrictions, including travel 
restrictions, restrictions on public gatherings and stay-at-home orders and advisories. In response, we temporarily closed certain of 
our offices and facilities across the world and implemented certain travel restrictions for our employees. 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. Currently, 
certain of the restrictions have been lifted; however, other restrictions still remain and the broader impacts of the COVID-19 
pandemic on our financial position, results of operations and cash flows, including impacts to the estimates we use in the 
preparation of our financial statements, remain uncertain and difficult to predict as information continues to evolve, and the severity 
and duration of the pandemic remains unknown, as is our visibility of its effect on the markets we serve and our customers within 
those markets.

In October 2019, we announced a global program designed to better position us for future growth and achievement of our strategic 
objectives (“Project Summit”). See Note 2.k. and Note 12.

On January 10, 2018, we completed the acquisition of IO Data Centers, LLC (“IODC”). See Note 3.

We have been organized and have operated as a real estate investment trust for United States federal income tax purposes 
(“REIT”) beginning with our taxable year ended December 31, 2014.

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

A. PRINCIPLES OF CONSOLIDATION

The accompanying financial statements reflect our financial position, results of operations, comprehensive income (loss), equity 
and cash flows on a consolidated basis. All intercompany transactions and account balances have been eliminated.

B. USE OF ESTIMATES

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America 
(“GAAP”) 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.

C. FOREIGN CURRENCY

Local currencies are the functional currencies for our operations outside the United States, with the exception of certain foreign 
holding companies, whose functional currency is the United States dollar. In those instances where the local currency is the 
functional currency, assets and liabilities are translated at period-end exchange rates, and revenues and expenses are translated 
at average exchange rates for the applicable period. See Note 2.q.

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Part IV

IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

D. CASH, CASH EQUIVALENTS AND RESTRICTED CASH

Cash and cash equivalents include cash on hand and cash invested in highly liquid short-term securities, which have remaining 
maturities at the date of purchase of less than 90 days. Cash and cash equivalents are carried at cost, which approximates fair 
value. 

E. ALLOWANCE FOR DOUBTFUL ACCOUNTS AND CREDIT MEMO RESERVES

We maintain an allowance for doubtful accounts and a credit memo reserve for estimated losses resulting from the potential 
inability of our customers to make required payments and potential disputes regarding billing and service issues.

In June 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update ("ASU") No. 2016-13, 
Financial Instruments-Credit Losses-Measurement of Credit Losses on Financial Instruments (“ASU 2016-13”). ASU 2016-13 
changes how entities will measure credit losses on most financial assets. The standard eliminates the probable initial recognition of 
estimated losses and provides a forward-looking expected credit loss model for accounts receivable, loans and other financial 
instruments.

On January 1, 2020 we adopted ASU 2016-13 on a modified retrospective basis for all financial assets measured at amortized 
cost. The adoption of ASU 2016-13 did not result in a material impact on our consolidated financial statements. Under ASU 
2016-13, we calculate and monitor our allowance considering future potential economic and macroeconomic conditions and 
reasonable and supportable forecasts for expected future collectability of our outstanding receivables, in addition to considering our 
past loss experience, current and prior trends in our aged receivables and credit memo activity. Our considerations when 
calculating our allowance include, but are not limited to, the following: the location of our businesses, the composition of our 
customer base, our product and service lines, potential future economic unrest, and potential future macroeconomic factors, 
including natural disasters and any impacts associated with the COVID-19 pandemic. Continued adjustments will be made should 
there be any material change to reasonable and supportable forecasts that may impact our likelihood of collection, as it becomes 
evident. Our highly diverse global customer base, with no single customer accounting for more than 1% of revenue during the 
years ended December 31, 2020, 2019 and 2018, limits our exposure to concentration of credit risk. Additionally, we write off 
uncollectible balances as circumstances warrant, generally, no later than one year past due.

Prior to our adoption of ASU 2016-13, we maintained an allowance for doubtful accounts for estimated losses resulting from the 
potential inability of our customers to make required payments and potential disputes regarding billing and service issues. When 
calculating the allowance, we considered our past loss experience, current and prior trends in our aged receivables and credit 
memo activity, current economic conditions, and specific circumstances of individual receivable balances. If the financial condition 
of our customers were to significantly change, resulting in a significant improvement or impairment of their ability to make 
payments, an adjustment of the allowance might have been required. 

Rollforward of allowance for doubtful accounts and credit memo reserves is as follows:

YEAR ENDED DECEMBER 31,

2020

2019

2018

BALANCE AT
BEGINNING OF
THE YEAR

CREDIT MEMOS
CHARGED TO
REVENUE

ALLOWANCE FOR
BAD DEBTS CHARGED
TO EXPENSE

DEDUCTIONS
AND OTHER(1)

BALANCE AT
END OF
THE YEAR

$ 

42,856  $ 

55,118  $ 

34,411  $ 

(75,404)  $ 

43,584 

46,648 

51,846 

36,329 

19,389 

18,625 

(71,963) 

(58,018) 

56,981 

42,856 

43,584 

(1) Primarily consists of the issuance of credit memos, the write-off of accounts receivable and the impact associated with currency translation adjustments.

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IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

F. CONCENTRATIONS OF CREDIT RISK

Financial instruments that potentially subject us to credit risk consist principally of cash and cash equivalents (including money 
market funds and time deposits) and accounts receivable. The only significant concentrations of liquid investments as of 
December 31, 2020 and 2019 related to cash and cash equivalents. At December 31, 2020, we had money market funds with four 
“Triple A” rated money market funds and time deposits with one global bank. At December 31, 2019, we had money market funds 
with seven “Triple A” rated money market funds. As per our risk management investment policy, we limit exposure to concentration 
of credit risk by limiting the amount invested in any one mutual fund to a maximum of 1% of the fund's total assets or in any one 
financial institution to a maximum of $75,000. See Note 2.o.

G. PREPAID EXPENSES AND ACCRUED EXPENSES

There are no prepaid expenses with items greater than 5% of total current assets as of December 31, 2020 and 2019.

Accrued expenses, with items greater than 5% of total current liabilities are shown separately, and consist of the following:

DESCRIPTION

Interest

Sales tax and VAT payable

Dividends

Operating lease liabilities

Other

Accrued expenses

DECEMBER 31,

2020

2019

$ 

131,448  $ 

131,780 

187,867 

250,239 

444,954 

$ 

1,146,288  $ 

97,987 

115,352 

186,021 

223,249 

339,143 

961,752 

H. PROPERTY, PLANT AND EQUIPMENT

Property, plant and equipment are stated at cost and depreciated using the straight-line method with the following useful lives (in 
years):

DESCRIPTION
Buildings and building improvements
Leasehold improvements
Racking

Warehouse equipment/vehicles

Furniture and fixtures

Computer hardware and software

RANGE
5 to 40
5 to 10 or life of the lease (whichever is shorter)
1 to 20 or life of the lease (whichever is shorter)

1 to 10

1 to 10

2 to 5

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IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

Property, plant and equipment (including financing leases in the respective category), at cost, consist of the following:

DESCRIPTION

Land

Buildings and building improvements

Leasehold improvements

Racking
Warehouse equipment/vehicles

Furniture and fixtures

Computer hardware and software

Construction in progress

Property, plant and equipment

DECEMBER 31,

2020

2019

$ 

354,395  $ 

3,040,253 

969,273 

2,083,199 
499,787 

52,978 

746,993 

499,459 

448,566 

3,029,309 

852,022 

2,040,832 
483,218 

54,275 

689,261 

451,423 

$ 

8,246,337  $ 

8,048,906 

Minor maintenance costs are expensed as incurred. Major improvements which extend the life, increase the capacity or improve 
the safety or the efficiency of property owned are capitalized and depreciated. Major improvements to leased buildings are 
capitalized as leasehold improvements and depreciated.

We capitalize interest expense during the active construction period of major capital projects. Capitalized interest is added to the 
cost of the underlying assets and is amortized over the useful lives of the assets. During the years ended December 31, 2020, 
2019 and 2018, capitalized interest is as follows: 

YEAR ENDED DECEMBER 31,

2020

2019

2018

Capitalized interest

$ 

14,321  $ 

15,980 

$ 

3,732 

We develop various software applications for internal use. Computer software costs associated with internal use software are 
expensed as incurred until certain capitalization criteria are met. Third party consulting costs, as well as payroll and related costs 
for employees directly associated with, and devoting time to, the development of internal use computer software projects (to the 
extent time is spent directly on the project) are capitalized. Capitalization begins when the design stage of the application has been 
completed and it is probable that the project will be completed and used to perform the function intended. Capitalization ends when 
the asset is ready for its intended use. Depreciation begins when the software is placed in service. Computer software costs that 
are capitalized are periodically evaluated for impairment.

During the years ended December 31, 2020, 2019 and 2018, capitalized costs associated with the development of internal use 
computer software projects are as follows:

YEAR ENDED DECEMBER 31,

2020

2019

2018

Capitalized costs associated with the development of internal use computer 
software projects

$ 

38,329  $ 

34,650 

$ 

29,407 

Entities are required to record the fair value of a liability for an asset retirement obligation in the period in which it is incurred. Asset 
retirement obligations represent the costs to replace or remove tangible long-lived assets required by law, regulatory rule or 
contractual agreement. Our asset retirement obligations are primarily the result of requirements under our facility lease agreements 
which generally have “return to original condition” clauses which would require us to remove or restore items such as shred pits, 
vaults, demising walls and office build-outs, among others. The significant assumptions used in estimating our aggregate asset 
retirement obligations are the timing of removals, the probability of a requirement to perform, estimated cost and associated 
expected inflation rates that are consistent with historical rates and credit-adjusted risk-free rates that approximate our incremental 
borrowing rate. Our asset retirement obligations at December 31, 2020 and 2019 were $34,537 and $30,831, respectively.

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IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

I. LEASES

We lease facilities for certain warehouses, data centers and office space. We also have land leases, including those on which 
certain facilities are located. The majority of our leased facilities are classified as operating leases that, on average, have initial 
lease terms of five to 10 years, with one or more lease renewal options to extend the lease term. Our lease renewal option terms 
generally range from one to five years. The exercise of the lease renewal option is at our sole discretion and may contain fixed 
rent, fair market value based rent or Consumer Price Index rent escalation clauses. We include option periods in the lease term 
when our failure to renew the lease would result in an economic disincentive, thereby making it reasonably certain that we will 
renew the lease. We recognize straight line rental expense over the life of the lease and any fair market value or Consumer Price 
Index rent escalations are recognized as variable lease expense in the period in which the obligation is incurred. In addition, we 
lease certain vehicles and equipment. Vehicle and equipment leases typically have lease terms ranging from one to seven years. 

We account for all leases, both operating and financing, in accordance with ASU No. 2016-02 Leases (Topic 842), as amended 
("ASU 2016-02") which we adopted on January 1, 2019 on a modified retrospective basis. We also adopted an accounting policy 
which provides that leases with an initial term of 12 months or less will not be included within the lease right-of-use assets and 
lease liabilities recognized on our Consolidated Balance Sheets after the adoption of ASU 2016-02. We will continue to recognize 
the lease payments for those leases with an initial term of 12 months or less in our Consolidated Statements of Operations on a 
straight-line basis over the lease term.

The lease right-of-use assets and related lease liabilities are classified as either operating or financing. Lease right-of-use assets 
are calculated as the net present value of future payments plus any capitalized initial direct costs less any tenant improvements or 
lease incentives. Lease liabilities are calculated as the net present value of future payments. In calculating the present value of the 
lease payments, we utilize the rate stated in the lease (in the limited circumstances when such rate is explicitly stated) or, if no rate 
is explicitly stated, we utilize a rate that reflects our securitized incremental borrowing rate by geography for the lease term. We 
account for nonlease components (which include common area maintenance, taxes, and insurance) with the related lease 
component. Any variable nonlease components are not included within the lease right-of-use asset and lease liability on our 
Consolidated Balance Sheets, and instead, are reflected as an expense in the period incurred.

At January 1, 2019, we recognized the cumulative effect of initially applying ASU 2016-02 as an adjustment to the opening balance 
of (Distributions in excess of earnings) Earnings in excess of distributions, resulting in an increase of approximately $5,800 to 
stockholders’ equity due to certain build to suit leases that were accounted for as financing leases under Accounting Standards 
Codification (“ASC”) 840, Leases (“ASC 840”) but are accounted for as operating leases under ASU 2016-02. 

Operating and financing lease right-of-use assets and lease liabilities as of December 31, 2020 and 2019 are as follows:

DESCRIPTION

Assets:

DECEMBER 31,

2020

2019

Operating lease right-of-use assets(1)
Financing lease right-of-use assets, net of accumulated depreciation(2)(3)

$ 

2,196,502  $ 

1,869,101 

310,534 

327,215 

Liabilities:

Current

Operating lease liabilities
Financing lease liabilities(3)

Long-term

Operating lease liabilities
Financing lease liabilities(3)

$ 

250,239  $ 

43,149 

223,249 

46,582 

2,044,598 

323,162 

1,728,686 

320,600 

(1) At December 31, 2020 and 2019, these assets are comprised of approximately 99% real estate related assets (which include land, buildings and racking) 
and 1% non-real estate related assets (which include warehouse equipment, vehicles, furniture and fixtures and computer hardware and software). 

(2) At December 31, 2020, these assets are comprised of approximately 72% real estate related assets and 28% non-real estate related assets. At December 31, 

2019, these assets are comprised of approximately 69% real estate related assets and 31% non-real estate related assets.

(3)

Financing lease right-of-use assets, current financing lease liabilities and long-term financing lease liabilities are included within Property, Plant and Equipment, Net, 
Current portion of long-term debt and Long-term Debt, net of current portion, respectively, within our Consolidated Balance Sheets.

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IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

The components of the lease expense for the years ended December 31, 2020 and 2019 are as follows:

DESCRIPTION
Operating lease cost(1)

Financing lease cost:

Depreciation of financing lease right-of-use assets

Interest expense for financing lease liabilities

YEAR ENDED DECEMBER 31,

2020

2019

499,464  $ 

459,619 

51,629  $ 

19,942 

59,258 

21,031 

$ 

$ 

(1) Operating lease cost, the majority of which is included in Cost of sales, includes variable lease costs of $111,501 and $105,922 for the years ended December 31, 

2020 and 2019, respectively. 

Weighted average remaining lease terms and discount rates as of December 31, 2020 and 2019 are as follows:

Remaining Lease Term

Discount Rate

DECEMBER 31, 2020

DECEMBER 31, 2019

OPERATING LEASES FINANCING LEASES OPERATING LEASES FINANCING LEASES

11.1 years

 6.9 %

11.5 years

 5.9 %

11.0 years

 7.1 %

11.6 years

 5.7 %

The estimated minimum future lease payments as of December 31, 2020, are as follows: 

YEAR

2021

2022

2023

2024

2025

Thereafter

Total minimum lease payments

OPERATING LEASES(1) SUBLEASE INCOME FINANCING LEASES(1)

$ 

380,607  $ 

(6,208)  $ 

362,970 

334,893 

307,039 

281,487 

1,687,706 

(5,752) 

(5,222) 

(3,771) 

(1,661) 

(6,229) 

3,354,702  $ 

(28,843) 

62,669 

54,499 

45,557 

38,051 

32,261 

268,542 

501,579 

(135,268) 

366,311 

Less amounts representing interest or imputed interest

Present value of lease obligations

$ 

(1,059,865) 

2,294,837 

$ 

(1) Estimated minimum future lease payments exclude variable common area maintenance charges, insurance and taxes. 

At December 31, 2020, we had seven leases which we have signed but which have not yet commenced and are not included in our 
lease obligation table above. The total undiscounted minimum lease payments for these leases are approximately $236,200 and 
have lease terms that range from 10 to 25 years. Each of these leases is expected to commence during 2021, with the exception of 
one lease where the lease commencement date will be driven by the completion of the building construction, which is expected to 
occur by the end of 2021 or in early 2022.

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IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

Other information: Supplemental cash flow information relating to our leases for the years ended December 31, 2020 and 2019 is 
as follows:

CASH PAID FOR AMOUNTS INCLUDED IN MEASUREMENT OF LEASE LIABILITIES:

2020

2019

YEAR ENDED DECEMBER 31,

Operating cash flows used in operating leases

Operating cash flows used in financing leases (interest)

Financing cash flows used in financing leases

NON-CASH ITEMS:

Operating lease modifications and reassessments

New operating leases (including acquisitions and sale-leaseback transactions) 

J. LONG-LIVED ASSETS

$ 

360,088  $ 

19,942 

47,829 

$ 

143,382  $ 

370,011 

338,059 

21,031 

58,033 

108,023 

170,464 

We review long-lived assets, including all finite-lived intangible assets, for impairment whenever events or changes in 
circumstances indicate the carrying amount of such assets may not be recoverable. Recoverability of these assets is determined 
by comparing the sum of the forecasted undiscounted net cash flows of the operation to which the assets relate to their carrying 
amount. The operations are generally distinguished by the business segment and geographic region in which they operate. If it is 
determined that we are unable to recover the carrying amount of the assets, the long-lived assets are written down, on a pro rata 
basis, to fair value. Fair value is determined based on discounted cash flows or appraised values, depending upon the nature of the 
assets. Long-lived assets, including finite-lived intangible assets, are amortized over their useful lives. Annually, or more frequently 
if events or circumstances warrant, we assess whether a change in the lives over which long-lived assets, including finite-lived 
intangible assets, are amortized is necessary.

2020

YEAR ENDED DECEMBER 31,
2019

2018

363,537  $ 

63,824  $ 

73,622 

Consolidated gain on 
disposal/write-down of 
property, plant and 
equipment, net

$ 

The gains primarily 
consisted of:

• Gain on sale of real estate of 
approximately $63,800 in the 
United Kingdom

• Gains associated with the 

involuntary conversion of assets 
included in a facility that we own in 
Argentina partially destroyed in a 
fire in 2014, of approximately 
$8,800 during the fourth quarter of 
2018

• Gains associated with sale-
leaseback transactions of 
approximately $342,100, of which 
(i) approximately $265,600 relates 
to the sale-leaseback transactions 
of 14 facilities in the United States 
during the fourth quarter of 2020 
and (ii) approximately $76,400 
relates to the sale-leaseback 
transactions of two facilities in the 
United States during the third 
quarter of 2020, each as part of 
our program to monetize a small 
portion of our industrial real estate 
assets. The terms for these leases 
are consistent with the terms of our 
lease portfolio, which are disclosed 
in Note 2.i.

• Gains of approximately $24,100 
associated with the Frankfurt JV 
Transaction (as defined in Note 3)

• Gains associated with sale and sale-

leaseback transactions of 
approximately $67,800 in the United 
States

• The sale of certain land and buildings 

of approximately $36,000 in the 
United Kingdom

Partially offset by losses from:

• The impairment charge on the assets 
associated with the select offerings 
within our Iron Mountain Iron Cloud 
("Iron Cloud") portfolio and loss on the 
subsequent sale of certain IT 
infrastructure assets and rights to 
certain hardware and maintenance 
contracts used to deliver these Iron 
Cloud offerings of approximately 
$25,000.

• The write-down of certain property, 

plant and equipment of approximately 
$15,700 in the United States.

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IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

K. GOODWILL AND OTHER INDEFINITE-LIVED INTANGIBLE ASSETS

Goodwill and intangible assets with indefinite lives are not amortized but are reviewed annually for impairment or more frequently if 
impairment indicators arise. Other than goodwill, we currently have no intangible assets that have indefinite lives and which are not 
amortized.

We have selected October 1 as our annual goodwill impairment review date. We have performed our annual goodwill impairment 
review as of October 1, 2020, 2019 and 2018. We concluded that as of October 1, 2020, 2019 and 2018, goodwill was not 
impaired. During the first quarter of 2020, as discussed in greater detail below, we concluded that we had a triggering event related 
to our Fine Arts reporting unit, requiring us to perform an interim goodwill impairment test. We concluded that the fair value of our 
Fine Arts reporting unit was less than its carrying value, and, therefore, we recorded a $23,000 impairment charge on the goodwill 
associated with this reporting unit during the first quarter of 2020.

The following is a discussion regarding (i) the reporting units at which level we tested goodwill for impairment as of October 1, 
2019, (ii) changes to the composition of our reporting units between October 1, 2019 and December 31, 2019, (iii) interim goodwill 
impairment review for our Fine Arts reporting unit during the first quarter of 2020 and (iv) the reporting units at which level we tested 
goodwill for impairment as of October 1, 2020 and the composition of these reporting units at December 31, 2020 (including the 
amount of goodwill associated with each reporting unit). When changes occur in the composition of one or more reporting units, the 
goodwill is reassigned to the reporting units affected based upon their relative fair values.

GOODWILL IMPAIRMENT ANALYSIS - 2019

I. REPORTING UNITS AS OF OCTOBER 1, 2019

Our reporting units at which level we performed our goodwill impairment analysis as of October 1, 2019 were as follows:

• North American Records and 
Information Management

• Western Europe

• Australia, New Zealand and South Africa 

• Northern/Eastern Europe and Middle East 

(“ANZ SA”)

• North American Data Management

and India (“NEE and MEI”)

• Asia

• Fine Arts

• Entertainment Services

• Latin America

• Global Data Center

We concluded that the goodwill associated with each of our reporting units was not impaired as of such date.

II. CHANGES TO COMPOSITION OF REPORTING UNITS BETWEEN OCTOBER 1, 2019 AND DECEMBER 31, 2019

During the fourth quarter of 2019, as a result of the realignment of our global managerial structure and changes to our internal 
financial reporting associated with Project Summit, we reassessed the composition of our reportable operating segments (see Note 
10 for a description and definitions of our reporting operating segments) as well as our reporting units. 

We noted the following changes to our reporting units:

• our former North American Records and Information Management (excluding our technology escrow services business) and North American 

Data Management reporting units are now being managed as our “North America RIM” reporting unit;

• our former Western Europe and NEE and MEI reporting units (excluding India) and our business in Africa, which was previously managed as 

a component of our former ANZ SA reporting unit, is now being managed together as our “Europe RIM” reporting unit;

• our business in India, which was previously managed as a component of our former NEE and MEI reporting unit, is now being managed in 

conjunction with our businesses in Asia as our “Asia RIM” reporting unit;

• our former ANZ SA reporting unit will no longer include South Africa and will be referred to as our “Australia and New Zealand RIM” (“ANZ 

RIM”) reporting unit; and

• our technology escrow services business is now being managed separately as our “Technology Escrow Services” reporting unit.

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IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

There were no changes to our Global Data Center, Fine Arts, Entertainment Services and Latin America RIM reporting units. We 
concluded that the goodwill associated with our North America RIM, Europe RIM, ANZ RIM, Asia RIM and Technology Escrow 
Services reporting units were not impaired following this change in reporting units.

GOODWILL BY REPORTING UNIT AS OF DECEMBER 31, 2019

The carrying value of goodwill, net for each of our reporting units described above as of December 31, 2019 is as follows: 

SEGMENT
Global RIM (as defined in Note 10) Business

Global Data Center Business

Corporate and Other Business

REPORTING UNIT

North America RIM

Europe RIM

Latin America RIM

ANZ RIM

Asia RIM

Global Data Center

Fine Arts

Entertainment Services

Technology Escrow Services

CARRYING VALUE AS OF 
DECEMBER 31, 2019

$ 

2,715,550 

572,482 

140,897 

274,913 

239,059 

424,568 

37,533 

34,102 

46,105 

Total

$ 

4,485,209 

GOODWILL IMPAIRMENT ANALYSIS - 2020

I. INTERIM GOODWILL IMPAIRMENT REVIEW - FINE ARTS

During the first quarter of 2020, we concluded that we had a triggering event related to our Fine Arts reporting unit, requiring us to 
perform an interim goodwill impairment test. The primary factor contributing to our conclusion was the expected impact of the 
COVID-19 pandemic to this particular business and its customers and revenue sources, which caused us to believe it was more 
likely than not that the carrying value of our Fine Arts reporting unit exceeded its fair value. During the first quarter of 2020, we 
performed an interim goodwill impairment test for our Fine Arts reporting unit utilizing a discounted cash flow model, with updated 
assumptions on future revenues, operating expenditures and capital expenditures. We concluded that the fair value of our Fine Arts 
reporting unit was less than its carrying value, and, therefore, we recorded a $23,000 impairment charge on the goodwill 
associated with this reporting unit during the first quarter of 2020. Factors that may impact these assumptions include, but are not 
limited to: (i) our ability to maintain, or grow, storage and retail service revenues in this reporting unit in line with current 
expectations and (ii) our ability to manage our fixed and variable costs in this reporting unit in line with potential future revenue 
declines.

II. REPORTING UNITS AS OF OCTOBER 1, 2020

Our reporting units at which level we performed our goodwill impairment analysis as of October 1, 2020 were as follows: 

• North America RIM

• Europe RIM

• Latin America RIM

• ANZ RIM

• Asia RIM

• Fine Arts

• Entertainment Services

• Global Data Center

• Technology Escrow Services

We concluded that the goodwill associated with each of our reporting units was not impaired as of such date. There were no 
changes to the composition of our reporting units between October 1, 2020 and December 31, 2020.	

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IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

GOODWILL BY REPORTING UNIT AS OF DECEMBER 31, 2020

The carrying value of goodwill, net for each of our reporting units described above as of December 31, 2020 is as follows: 

SEGMENT
Global RIM Business

Global Data Center Business

Corporate and Other Business

REPORTING UNIT

North America RIM

Europe RIM

Latin America RIM
ANZ RIM

Asia RIM

Global Data Center

Fine Arts

Entertainment Services

Technology Escrow Services

CARRYING VALUE AS OF 
DECEMBER 31, 2020

$ 

2,719,182 

641,621 

117,834 
301,251 

244,294 

436,987 

15,176 

35,159 

46,105 

Total

$ 

4,557,609 

Reporting unit valuations have generally been determined using a combined approach based on the present value of future cash 
flows (the “Discounted Cash Flow Model”) and market multiples (the “Market Approach”). 

The Discounted Cash Flow Model incorporates significant 
assumptions including future revenue growth rates, 
operating margins, discount rates and capital expenditures. 

The Market Approach requires us to make assumptions 
related to Adjusted EBITDA (as defined in Note 10) 
multiples. 

Changes in economic and operating conditions impacting these assumptions or changes in multiples could result in goodwill 
impairments in future periods. In conjunction with our annual goodwill impairment reviews, we reconcile the sum of the valuations 
of all of our reporting units to our market capitalization as of such dates.

The changes in the carrying value of goodwill attributable to each reportable operating segment for the years ended December 31, 
2020 and 2019 are as follows:

GLOBAL RIM 
BUSINESS 

GLOBAL
DATA 
CENTER
BUSINESS

CORPORATE 
AND OTHER 
BUSINESS

TOTAL
CONSOLIDATED

Goodwill balance, net of accumulated amortization, as of December 31, 
2018

$ 

3,899,210  $ 

425,956  $ 

115,864  $ 

4,441,030 

Tax deductible goodwill acquired during the year

Non-tax deductible goodwill acquired during the year

Fair value and other adjustments

Currency effects

Goodwill balance, net of accumulated amortization, as of December 31, 
2019

Non-tax deductible goodwill acquired during the year

Goodwill impairment

Fair value and other adjustments

Currency effects

16,450 

11,228 

4,439 

11,574 

— 

— 

258 

(1,646) 

— 

1,904 

(417) 

389 

16,450 

13,132 

4,280 

10,317 

3,942,901 

424,568 

117,740 

4,485,209 

54,258 

— 

(3,815) 

30,838 

— 

— 

— 

12,419 

— 

(23,000) 

403 

1,297 

54,258 

(23,000) 

(3,412) 

44,554 

Goodwill balance, net of accumulated amortization, as of December 31, 
2020

Accumulated Goodwill Impairment Balance as of December 31, 2019

Accumulated Goodwill Impairment Balance as of December 31, 2020

$ 

$ 

$ 

4,024,182  $ 

436,987  $ 

96,440  $ 

4,557,609 

132,409  $ 

132,409  $ 

—  $ 

—  $ 

3,011  $ 

26,011  $ 

135,420 

158,420 

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IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

L. FINITE-LIVED INTANGIBLE ASSETS AND LIABILITIES

I. CUSTOMER RELATIONSHIP INTANGIBLE ASSETS
Customer relationship intangible assets, which are acquired through either business combinations or acquisitions of customer 
relationships, are amortized over periods ranging from 10 to 30 years. Customer relationship intangible assets are recorded based 
upon estimates of their fair value.

II. CUSTOMER INDUCEMENTS
Payments that are made to a customer’s current records management vendor in order to terminate the customer’s existing contract 
with that vendor (“Permanent Withdrawal Fees”), or direct payments to a customer for which no distinct benefit is received in return, 
are collectively referred to as "Customer Inducements". Customer Inducements are treated as a reduction of the transaction price 
over periods ranging from one to 10 years and are included in storage and service revenue in the accompanying Consolidated 
Statements of Operations. If the customer terminates its relationship with us, the unamortized carrying value of the Customer 
Inducement intangible asset is charged to revenue. However, in the event of such termination, we generally collect, and record as 
income, permanent removal fees that generally equal or exceed the amount of the unamortized Customer Inducement intangible 
asset. 

III. DATA CENTER INTANGIBLE ASSETS AND LIABILITIES
Finite-lived intangible assets associated with our Global Data Center Business consist of the following:

DATA CENTER IN-PLACE LEASE INTANGIBLE ASSETS AND DATA CENTER TENANT RELATIONSHIP INTANGIBLE 
ASSETS
Data Center In-Place Lease Intangible Assets (“Data Center In-Place Leases”) and Data Center Tenant Relationship Intangible 
Assets (“Data Center Tenant Relationships”) reflect the value associated with acquiring a data center operation with active tenants 
as of the date of acquisition. The value of Data Center In-Place Leases is determined based upon an estimate of the economic 
costs (such as lost revenues, tenant improvement costs, commissions, legal expenses and other costs to acquire new data center 
leases) avoided by acquiring a data center operation with active tenants that would have otherwise been incurred if the data center 
operation was purchased vacant. Data Center In-Place Leases are amortized over the weighted average remaining term of the 
acquired data center leases. The value of Data Center Tenant Relationships is determined based upon an estimate of the 
economic costs avoided upon lease renewal of the acquired tenants, based upon expectations of lease renewal. Data Center 
Tenant Relationships are amortized over the weighted average remaining anticipated life of the relationship with the acquired 
tenant.

DATA CENTER ABOVE-MARKET AND BELOW-MARKET IN-PLACE LEASE INTANGIBLE ASSETS
We record Data Center Above-Market In-Place Lease Intangible Assets (“Data Center Above-Market Leases”) and Data Center 
Below-Market In-Place Lease Intangible Assets (“Data Center Below-Market Leases”) at the net present value of the difference 
between (i) the contractual amounts to be paid pursuant to each in-place lease and (ii) management’s estimate of the fair market 
lease rates for each corresponding in-place lease. Data Center Above-Market Leases and Data Center Below-Market Leases are 
amortized over the remaining non-cancellable term of the acquired in-place lease to storage revenue.

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IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

The gross carrying amount and accumulated amortization of our finite-lived intangible assets as of December 31, 2020 and 2019, 
respectively, are as follows:

DESCRIPTION

Assets:

DECEMBER 31, 2020

DECEMBER 31, 2019

GROSS 
CARRYING 
AMOUNT

ACCUMULATED 
AMORTIZATION

NET 
CARRYING 
AMOUNT

GROSS 
CARRYING 
AMOUNT

ACCUMULATED 
AMORTIZATION

NET 
CARRYING 
AMOUNT

Customer relationship intangible assets(1)
Customer inducements(1)
Data center lease-based intangible assets(1)(2)
Third-party commissions asset(3)

$  1,852,700  $ 

(668,547)  $  1,184,153  $  1,751,848  $ 

(544,721)  $  1,207,127 

49,098   

269,988   

34,317   

(26,923)   

22,175 

52,718   

(29,397)   

23,321 

(149,339)   

120,649 

265,945   

(103,210)   

162,735 

(8,761)   

25,556 

31,708   

(4,134)   

27,574 

Liabilities:

Data center below-market leases(4)

$ 

12,854  $ 

(5,943)  $ 

6,911  $ 

12,750  $ 

(3,937)  $ 

8,813 

(1)

Included in Customer relationships, customer inducements and data center lease-based intangibles in the accompanying Consolidated Balance Sheets as of 
December 31, 2020 and 2019.

(2) Data center lease-based intangible assets includes Data Center In-Place Leases, Data Center Tenant Relationships and Data Center Above-Market Leases.

(3)

(4)

Included in Other (within Other Assets, Net) in the accompanying Consolidated Balance Sheets as of December 31, 2020 and 2019.

Included in Other long-term liabilities in the accompanying Consolidated Balance Sheets as of December 31, 2020 and 2019.

Amortization expense associated with finite-lived intangible assets, revenue reduction associated with the amortization of Customer 
Inducements and net revenue reduction associated with the amortization of Data Center Above-Market Leases and Data Center 
Below-Market Leases for the years ended December 31, 2020, 2019 and 2018 is as follows:

Amortization expense included in depreciation and amortization associated with:

Customer relationship intangible assets

Data center in-place leases and tenant relationships

Third-party commissions asset and other finite-lived intangible assets

Revenue reduction associated with amortization of:

YEAR ENDED DECEMBER 31,

2020

2019

2018

$ 

117,514  $ 

117,972  $ 

113,782 

42,637 

7,004 

46,696 

7,957 

43,061 

5,713 

Customer inducements and data center above-market and below-market leases

$ 

9,878  $ 

13,703  $ 

16,281 

Estimated amortization expense for existing finite-lived intangible assets (excluding Contract Fulfillment Costs, as defined and 
disclosed in Note 2.r.) is as follows:

ESTIMATED AMORTIZATION

INCLUDED IN DEPRECIATION 
AND AMORTIZATION

$ 

168,756  $ 

139,983 

135,262 

130,298 

127,771 

625,052 

REVENUE REDUCTION ASSOCIATED WITH 
CUSTOMER INDUCEMENTS 
AND DATA CENTER ABOVE-MARKET AND
BELOW-MARKET LEASES

7,603 

5,010 

3,084 

1,453 

508 

842 

YEAR

2021

2022

2023

2024

2025

Thereafter

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IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

M. DEFERRED FINANCING COSTS

Deferred financing costs are amortized over the life of the related debt. If debt is retired early, the related unamortized deferred 
financing costs are written-off in the period the debt is retired to Other expense (income), net. See Note 6.

N. DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES

Every derivative instrument is required to be recorded in the balance sheet as either an asset or a liability measured at its fair 
value. Periodically, we acquire derivative instruments that are intended to hedge either cash flows or values that are subject to 
foreign exchange or other market price risk and not for trading purposes. We have formally documented our hedging relationships, 
including identification of the hedging instruments and the hedged items, as well as our risk management objectives and strategies 
for undertaking each hedge transaction. Given the recurring nature of our revenues and the long-term nature of our asset base, we 
have the ability and the preference to use long-term, fixed interest rate debt to finance our business, thereby preserving our long-
term returns on invested capital. We may use interest rate swaps as a tool to maintain our targeted level of fixed rate debt. In 
addition, we may enter into cross-currency swaps to hedge the variability of exchange rates between the United States and our 
foreign subsidiaries, as well as interest rates. We may also use borrowings in foreign currencies, either obtained in the United 
States or by our foreign subsidiaries, to hedge foreign currency risk associated with our international investments. As of 
December 31, 2020 and 2019, none of our derivative instruments contained credit-risk related contingent features. See Note 5.

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IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

O. FAIR VALUE MEASUREMENTS

Entities are permitted under GAAP to elect to measure certain financial instruments and certain other items at either fair value or 
cost. We have elected the cost measurement option in all circumstances where we had an option. 

Our financial assets or liabilities that are carried at fair value are required to be measured using inputs from the three levels of the 
fair value hierarchy. A financial asset or liability’s classification within the hierarchy is determined based on the lowest level input 
that is significant to the fair value measurement. The three levels of the fair value hierarchy are as follows:

Level 1—Inputs are unadjusted quoted prices in active markets for identical assets or liabilities that we have the ability to access at 
the measurement date.

Level 2—Inputs include quoted prices for similar assets and liabilities in active markets, quoted prices for identical or similar assets 
or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability (i.e., interest 
rates, yield curves, etc.), and inputs that are derived principally from or corroborated by observable market data by correlation or 
other means (market corroborated inputs).

Level 3—Unobservable inputs that reflect our assumptions about the assumptions that market participants would use in pricing the 
asset or liability. 

The assets and liabilities carried at fair value and measured on a recurring basis as of December 31, 2020 and 2019, respectively, 
are as follows:

DESCRIPTION
Money Market Funds(1)
Time Deposits(1)

Trading Securities
Derivative Liabilities(4)

DESCRIPTION
Money Market Funds(1)

Trading Securities
Derivative Liabilities(4)

TOTAL CARRYING 
VALUE AT 
DECEMBER 31, 2020

QUOTED PRICES IN 
ACTIVE MARKETS 
(LEVEL 1) 

SIGNIFICANT OTHER 
OBSERVABLE INPUTS 
(LEVEL 2) 

SIGNIFICANT 
UNOBSERVABLE INPUTS 
(LEVEL 3)

FAIR VALUE MEASUREMENTS AT DECEMBER 31, 2020 USING

$ 

62,657  $ 

— 

$ 

62,657 

$ 

2,121 

10,892 

49,703 

— 
10,636  (2)

— 

2,121 

256  (3)

49,703 

— 

— 

— 

— 

TOTAL CARRYING 
VALUE AT 
DECEMBER 31, 2019

QUOTED PRICES IN 
ACTIVE MARKETS 
(LEVEL 1) 

SIGNIFICANT OTHER 
OBSERVABLE INPUTS 
(LEVEL 2) 

SIGNIFICANT 
UNOBSERVABLE INPUTS 
(LEVEL 3)

FAIR VALUE MEASUREMENTS AT DECEMBER 31, 2019 USING

$ 

13,653  $ 

10,732 

9,756 

— 
10,168  (2)

$ 

— 

13,653 

$ 

564  (3)

9,756 

— 

— 

— 

(1) Money market funds and time deposits are measured based on quoted prices for similar assets and/or subsequent transactions.

(2) Certain trading securities are measured at fair value using quoted market prices.

(3) Certain trading securities are measured based on inputs other than quoted market prices that are observable.

(4) Derivative assets and liabilities include (i) interest rate swap agreements, including forward-starting interest rate swap agreements, to limit our exposure to changes 
in interest rates on a portion of our floating rate indebtedness and (ii) cross-currency swap agreements to hedge the variability of exchange rates impacts between 
the United States dollar and the Euro and certain of our Euro denominated subsidiaries. Our derivative financial instruments are measured using industry standard 
valuation models using market-based observable inputs, including interest rate curves, forward and spot prices for currencies and implied volatilities. Credit risk is 
also factored into the determination of the fair value of our derivative financial instruments. See Note 5 for additional information on our derivative financial 
instruments.    

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IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

We did not have any material items that are measured at fair value on a non-recurring basis for the years ended December 31, 
2020, 2019, and 2018, with the exception of: (i) the reporting units as presented in our goodwill impairment analysis (as disclosed 
in Note 2.k.); (ii) the assets and liabilities acquired through acquisitions (as disclosed in Note 3); (iii) the redemption value of certain 
redeemable noncontrolling interests (as disclosed in Note 2.p.); and (iv) our initial investments in the Frankfurt JV, the MakeSpace 
JV and OSG (each as defined in Note 3), all of which are based on Level 3 inputs.

The fair value of our long-term debt, which was determined based on either Level 1 inputs or Level 3 inputs, is disclosed in Note 6. 
Long-term debt is measured at cost in our Consolidated Balance Sheets as of December 31, 2020 and 2019. 

P. REDEEMABLE NONCONTROLLING INTERESTS

Certain unaffiliated third parties own noncontrolling interests in certain of our foreign consolidated subsidiaries. The underlying 
agreements between us and our noncontrolling interest shareholders for these subsidiaries contain provisions under which the 
noncontrolling interest shareholders can require us to purchase their respective interests in such subsidiaries at certain times and 
at a purchase price as stipulated in the underlying agreements (generally at fair value). These put options make these 
noncontrolling interests redeemable and, therefore, these noncontrolling interests are classified as temporary equity outside of 
stockholders’ equity. Redeemable noncontrolling interests are reported at the higher of their redemption value or the noncontrolling 
interest holders’ proportionate share of the underlying subsidiaries net carrying value. Increases or decreases in the redemption 
value of the noncontrolling interest are offset against Additional Paid-in Capital.

In 2018, one of our noncontrolling interest shareholders exercised its option to put its ownership interest back to us. Upon the 
exercise of the put option, this noncontrolling interest became mandatorily redeemable by us, and, therefore, is accounted for as a 
liability rather than a component of redeemable noncontrolling interests. Subject to agreement on final settlement terms and 
conditions, we and this noncontrolling interest shareholder have agreed in principle on the put option price for the noncontrolling 
interest shares. We are in dispute with this noncontrolling interest shareholder with respect to whether interest from the date of the 
put and certain other costs should be reimbursable to the noncontrolling interest shareholder. We intend to vigorously defend that 
interest and certain other reimbursable costs are not owed to the noncontrolling interest shareholder. We have recorded our 
estimate of the fair value of these noncontrolling interest shares as a component of Accrued expenses on our Consolidated 
Balance Sheets as of December 31, 2020 and 2019. It is possible that the value ultimately agreed upon with the noncontrolling 
interest shareholder could differ from our current estimate of the fair value. Subsequent to these noncontrolling interest shares 
becoming mandatorily redeemable, any increase or decrease in the fair value of such noncontrolling interest is included as a 
component of Other expense (income), net on our Consolidated Statements of Operations. 

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IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

Q. ACCUMULATED OTHER COMPREHENSIVE ITEMS, NET

The changes in accumulated other comprehensive items, net for the years ended December 31, 2020, 2019 and 2018 are as 
follows:

Balance as of December 31, 2017

Other comprehensive (loss) income:

Foreign currency translation and other adjustments

Change in fair value of derivative instruments

Total other comprehensive (loss) income

Balance as of December 31, 2018

Other comprehensive income (loss):

Foreign currency translation and other adjustments

Change in fair value of derivative instruments

Total other comprehensive income (loss)

Balance as of December 31, 2019

Other comprehensive income (loss):

Foreign currency translation and other adjustments

Change in fair value of derivative instruments

Total other comprehensive income (loss)

Balance as of December 31, 2020

FOREIGN CURRENCY
 TRANSLATION AND
OTHER ADJUSTMENTS

CHANGE IN FAIR 
VALUE OF DERIVATIVE
INSTRUMENTS

TOTAL

$ 

(103,989)  $ 

—  $ 

(103,989) 

(160,702) 

— 

(160,702) 

(264,691) 

11,866 

— 

11,866 

(252,825) 

46,635 

— 

46,635 

— 

(973) 

(973) 

(973) 

— 

(8,783) 

(8,783) 

(9,756) 

— 

(39,947) 

(39,947) 

(160,702) 

(973) 

(161,675) 

(265,664) 

11,866 

(8,783) 

3,083 

(262,581) 

46,635 

(39,947) 

6,688 

$ 

(206,190)  $ 

(49,703)  $ 

(255,893) 

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IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

R. REVENUES

Our revenues consist of storage rental revenues as well as service revenues and are reflected net of sales and value-added taxes. 
Storage rental revenues, which are considered a key driver of financial performance for the storage and information management 
services industry, consist primarily of recurring periodic rental charges related to the storage of materials or data (generally on a per 
unit basis) that are typically retained by customers for many years and revenues associated with our data center operations. 
Service revenues include charges for related service activities, the most significant of which include: (1) the handling of records, 
including the addition of new records, temporary removal of records from storage, refiling of removed records, customer termination 
and permanent removal fees, project revenues and courier operations, consisting primarily of the pickup and delivery of records 
upon customer request; (2) destruction services, consisting primarily of secure shredding of sensitive documents and the 
subsequent sale of shredded paper for recycling, the price of which can fluctuate from period to period; and (3) digital solutions 
including scanning, imaging and document conversion services of active and inactive records, and consulting services.

We account for revenue in accordance with ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606) (“ASU 
2014-09”). Customers are generally billed monthly based on contractually agreed-upon terms, and storage rental and service 
revenues are recognized in the month the respective storage rental or service is provided, in line with the transfer of control to the 
customer. When storage rental fees or services are billed in advance, amounts related to future storage rental or prepaid service 
contracts are accounted for as deferred revenue and recognized upon the transfer of control to the customer, generally ratably over 
the contract term. Customer contracts generally include promises to provide monthly recurring storage and related services that are 
essentially the same over time and have the same pattern of transfer of control to the customer; therefore, most performance 
obligations represent a promise to deliver a series of distinct services over time (as determined for purposes of ASU 2014-09, a 
“series”). For those contracts that qualify as a series, we have a right to consideration from the customer in an amount that 
corresponds directly with the value of the underlying performance obligation transferred to the customer to date. This concept is 
known as "right to invoice” and we apply the “right to invoice” practical expedient to all revenues, with the exception of storage 
revenues in our Global Data Center Business (which are subject to leasing guidance). Additionally, each purchasing decision is 
fully in the control of the customer and; therefore, consideration beyond the current reporting period is variable and allocated to the 
specific period to which the consideration relates, which is consistent with the practical expedient.

Our Global Data Center Business features storage rental provided to the customer at contractually specified rates over a fixed 
contractual period. Storage rental revenue related to the storage component of our Global Data Center Business is recognized on a 
straight-line basis over the contract term in accordance with ASU 2016-02. The revenue related to the service component of our 
Global Data Center Business is recognized in the period the related services are provided.

The costs associated with the initial movement of customer records into physical storage and certain commissions are considered 
costs to obtain or fulfill customer contracts (“Contract Fulfillment Costs”). The following describes each of these Contract Fulfillment 
Costs recognized under ASU 2014-09:

INTAKE COSTS (AND ASSOCIATED DEFERRED REVENUE)
The costs of the initial intake of customer records into physical storage (“Intake Costs”) are deferred and amortized as a component 
of depreciation and amortization in our Consolidated Statements of Operations over three years, consistent with the transfer of the 
performance obligation to the customer to which the asset relates. In instances where such Intake Costs are billed to the customer, 
the associated revenue is deferred and recognized over the same three-year period. 

COMMISSIONS
Certain commission payments that are directly associated with the fulfillment of long-term storage contracts are capitalized and 
amortized as a component of depreciation and amortization in our Consolidated Statements of Operations over three years, 
consistent with the transfer of the performance obligation to the customer to which the asset relates. Certain direct commission 
payments associated with contracts with a duration of one year or less are expensed as incurred under the practical expedient 
which allows an entity to expense as incurred an incremental cost of obtaining a contract if the amortization period of the asset that 
the entity otherwise would have recognized is one year or less.

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IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

Contract Fulfillment Costs, which are included as a component of Other within Other Assets, Net, as of December 31, 2020 and 
2019 are as follows: 

DESCRIPTION

Intake Costs asset

Commissions asset

DECEMBER 31, 2020

DECEMBER 31, 2019

GROSS
CARRYING
AMOUNT

ACCUMULATED
AMORTIZATION

NET
CARRYING
AMOUNT

GROSS
CARRYING
AMOUNT

ACCUMULATED
AMORTIZATION

NET 
CARRY
ING AMOUNT

$ 

63,721  $ 

(33,352)  $ 

30,369  $ 

41,224  $ 

(23,579)  $ 

91,069 

(38,787) 

52,282 

68,008 

(27,178) 

17,645 

40,830 

Amortization expense associated with the Intake Costs and Commissions assets for the years ended December 31, 2020, 2019 
and 2018 are as follows:

DESCRIPTION

Intake Costs asset

Commissions asset

Estimated amortization expense for Contract Fulfillment Costs is as follows:

YEAR ENDED DECEMBER 31,

2020

2019

2018

$ 

13,300  $ 

10,144  $ 

24,052 

19,109 

10,380 

13,838 

YEAR

2021

2022

2023

Deferred revenue liabilities are reflected as follows in our Consolidated Balance Sheets: 

DESCRIPTION

Deferred revenue - Current

Deferred revenue - Long-term

LOCATION IN BALANCE SHEET

Deferred revenue

Other Long-term Liabilities

ESTIMATED AMORTIZATION

$ 

38,954 

24,861 

18,836 

DECEMBER 31,

2020

2019

$ 

295,785  $ 

274,036 

35,612 

36,029 

DATA CENTER LESSOR CONSIDERATIONS
Our Global Data Center Business features storage rental provided to customers at contractually specified rates over a fixed 
contractual period. Prior to January 1, 2019, our data center revenue contracts were accounted for in accordance with ASC 840. 
Beginning on January 1, 2019, our data center revenue contracts are accounted for in accordance with ASU 2016-02. ASU 
2016-02 provides a practical expedient which allows lessors to account for nonlease components (such as power and connectivity, 
in the case of our Global Data Center Business) with the related lease component if both the timing and pattern of transfer are the 
same for nonlease components and the lease component, and the lease component, if accounted for separately, would be 
classified as an operating lease. The single combined component is accounted for under ASU 2016-02 if the lease component is 
the predominant component and is accounted for under ASU 2014-09 if the nonlease components are the predominant 
components. We have elected to take this practical expedient. 

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IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

Storage rental revenue, including revenue associated with power and connectivity, associated with our Global Data Center 
Business for the years ended December 31, 2020, 2019 and 2018 are as follows:

Storage rental revenue(1)

YEAR ENDED DECEMBER 31,

2020

2019

2018

$ 

263,695  $ 

246,925  $ 

218,675 

(1) Revenue associated with power and connectivity included within storage rental revenue was $47,451, $43,269 and $38,749 for the years ended December 31, 2020, 

2019 and 2018, respectively.

The revenue related to the service component of our Global Data Center Business remains unchanged from the adoption of ASU 
2016-02 and is recognized in the period the related services are provided. Our accounting treatment for data center revenue was 
not significantly impacted by the adoption of ASU 2016-02.

The future minimum lease payments we expect to receive under non-cancellable data center operating leases for which we are the 
lessor, excluding month to month leases, for the next five years are as follows:

YEAR

2021

2022

2023

2024

2025

FUTURE MINIMUM LEASE 
PAYMENTS

$ 

225,554 

183,027 

142,787 

111,106 

77,308 

S. STOCK-BASED COMPENSATION

We record stock-based compensation expense, utilizing the straight-line method, for the cost of stock options, restricted stock units 
(“RSUs”), performance units (“PUs”) and shares of stock issued under our employee stock purchase plan (“ESPP”) (together, 
"Employee Stock-Based Awards”).

For our Employee Stock-Based Awards made on or after February 20, 2019, we have included the following retirement provision: 

• Upon an employee’s retirement on or after attaining age 58, if the sum of (i) the award recipient’s age at retirement and (ii) the 

award recipient’s years of service with the company totals at least 70, the award recipient is entitled to continued vesting of any 
outstanding Employee Stock-Based Awards which include the 2019 Retirement Criteria subsequent to their retirement, provided 
that, for awards granted in the year of retirement, their retirement occurs on or after July 1 (the “2019 Retirement Criteria”). 

• Accordingly, (i) grants of Employee Stock-Based Awards to an employee who has met the 2019 Retirement Criteria on or before 
the date of grant, or will meet the Retirement Criteria before July 1 of the year of the grant, will be expensed between the date of 
grant and July 1 of the grant year and (ii) grants of Employee Stock-Based Awards to employees who will meet the 2019 
Retirement Criteria during the award’s normal vesting period will be expensed between the date of grant and the date upon 
which the award recipient meets the 2019 Retirement Criteria. 

• Stock options and RSUs granted to recipients who meet the 2019 Retirement Criteria will continue vesting on the original vesting 
schedule. If an employee retires and has met the 2019 Retirement Criteria, stock options will remain exercisable for up to three 
years or the original expiration date of the stock options, if earlier. PUs granted to recipients who meet the 2019 Retirement 
Criteria will continue to vest and be delivered in accordance with the original vesting schedule of the applicable PU award and 
remain subject to the same performance conditions.

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IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

Stock-based compensation expense for Employee Stock-Based Awards included in the accompanying Consolidated Statements of 
Operations for the years ended December 31, 2020, 2019 and 2018 is as follows: 

Stock-based compensation expense

Stock-based compensation expense, after tax

YEAR ENDED DECEMBER 31,

2020

2019

2018

$ 

37,674  $ 

35,654  $ 

36,584 

33,103 

31,167 

28,998 

The substantial majority of stock-based compensation expense for Employee Stock-Based Awards is included in Selling, general 
and administrative expenses in the accompanying Consolidated Statements of Operations.

STOCK OPTIONS
Options are generally granted with exercise prices equal to the market price of the stock on the date of grant; however, in certain 
instances, options are granted at prices greater than the market price of the stock on the date of grant. The substantial majority of 
options we issue become exercisable ratably over a period three years from the date of grant and have a contractual life of 10 
years from the date of grant, unless the holder’s employment is terminated sooner. Our non-employee directors are considered 
employees for purposes of our stock option plans and stock option reporting.

The substantial majority of the stock options outstanding at December 31, 2020 are based on the three-year vesting period (10 
year contractual life) described above. 

Our equity compensation plans generally provide that, upon a vesting change in control (as defined in each plan), any unvested 
options and other awards granted thereunder shall vest immediately if an employee is terminated as a result of the change in 
control or terminates their own employment for good reason (as defined in each plan). On January 20, 2015, our stockholders 
approved the adoption of the Iron Mountain Incorporated 2014 Stock and Cash Incentive Plan, as amended (the "2014 Plan”). 
Under the 2014 Plan, the total amount of shares of common stock reserved and available for issuance pursuant to awards granted 
under the 2014 Plan is 12,750,000. The 2014 Plan permits us to continue to grant awards through May 24, 2027.

A total of 48,253,839 shares of common stock have been reserved for grants of options and other rights under our various stock 
incentive plans, including the 2014 Plan. The number of shares available for grant under our various stock incentive plans, not 
including the ESPP, at December 31, 2020 was 2,818,706.

The weighted average fair value of stock options granted in 2020, 2019 and 2018 was $2.35, $3.58 and $3.50 per share, 
respectively. These values were estimated on the date of grant using the Black-Scholes option pricing model. The weighted 
average assumptions used for grants in the years ended December 31, 2020, 2019 and 2018 are as follows:

WEIGHTED AVERAGE ASSUMPTIONS
Expected volatility(1)
Risk-free interest rate(2)
Expected dividend yield(3)
Expected life(4)

YEAR ENDED DECEMBER 31,

2020

2019

2018

 25.4 %

 1.45 %

 7 %

 24.3 %

 2.47 %

 7 %

 25.4 %

 2.65 %

 7 %

10.0 years

5.0 years

5.0 years

(1) Expected volatility is calculated utilizing daily historical volatility over a period that equates to the expected life of the option. 

(2) Risk-free interest rate is based on the United States Treasury interest rates whose term is consistent with the expected life (estimated period of time outstanding) of 

the stock options. 

(3) Expected dividend yield is considered in the option pricing model and represents our current annualized expected per share dividends over the current trade price of 

our common stock. 

(4) Expected life of the stock options granted is estimated using the historical exercise behavior of employees.

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IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

A summary of stock option activity for the year ended December 31, 2020 is as follows:

WEIGHTED
AVERAGE
EXERCISE 
PRICE

WEIGHTED AVERAGE
REMAINING
CONTRACTUAL
TERM (YEARS)

AGGREGATE
INTRINSIC
VALUE

OPTIONS

Outstanding at December 31, 2019

Granted

Exercised

Forfeited

Expired

Outstanding at December 31, 2020

Options exercisable at December 31, 2020

Options expected to vest

4,835,721  $ 

589,993 

(204,540) 

(151,230) 

(337,425) 

4,732,519  $ 

3,439,748  $ 

1,266,640  $ 

35.64 

33.32 

24.38 

35.36 

35.82 

35.83 

36.40 

34.28 

6.27

5.46

8.41

$ 

$ 

$ 

469 

469 

— 

RESTRICTED STOCK UNITS
Our RSUs generally have a vesting period of three years from the date of grant. However, RSUs granted to our non-employee 
directors vest immediately upon grant. All RSUs accrue dividend equivalents associated with the underlying stock as we declare 
dividends. Dividends will generally be paid to holders of RSUs in cash upon the vesting date of the associated RSU and will be 
forfeited if the RSU does not vest. The fair value of RSUs is the excess of the market price of our common stock at the date of 
grant over the purchase price (which is typically zero). 

The fair value of RSUs vested during the years ended December 31, 2020, 2019 and 2018, are as follows:

Fair value of RSUs vested

$ 

26,492  $ 

21,191  $ 

20,454 

A summary of RSU activity for the year ended December 31, 2020 is as follows:

YEAR ENDED DECEMBER 31,

2020

2019

2018

Non-vested at December 31, 2019

Granted

Vested

Forfeited

Non-vested at December 31, 2020

RSUs

WEIGHTED-AVERAGE
GRANT-DATE FAIR VALUE

1,203,599  $ 

1,078,124 

(792,083) 

(195,634) 

1,294,006  $ 

34.71 

31.68 

33.45 

34.28 

33.02 

PERFORMANCE UNITS
The PUs we issue vest based on our performance against predefined operational and share based targets. PUs granted in 2018 
vest based on targets for revenue, Adjusted EBITDA, and total return on our common stock in relation to the MSCI United States 
REIT Index ("TSR Target") and the number of PUs earned may range from 0% to 200% of the initial award. For awards granted in 
2019 and thereafter, the vesting is subject to a minimum level of return on invested capital (“ROIC”) in the third year of the 
performance period, and thereafter the number of PUs earned is based on (i) the revenue performance for each year averaged at 
the end of the three-year performance period, (ii) the revenue exit rate of new products in the last quarter of the three-year 
performance period and (iii) a TSR Target. With respect to the PUs granted in 2019 and thereafter, the number of PUs earned may 
range from 0% to 219% of the initial award. 

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IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

All of our PUs will be settled in shares of our common stock and are subject to cliff vesting three years from the date of the original 
PU grant. As detailed above, PUs granted:

• On or after February 20, 2019, are subject to the 2019 Retirement Criteria. PUs granted to recipients who meet the 2019 

Retirement Criteria will continue to vest and be delivered in accordance with the original vesting schedule of the applicable PU 
award and remain subject to the same performance conditions.

• Prior to February 20, 2019, employees who terminate their employment during the three-year performance period and on or 
after attaining age 55 and completing 10 years of qualifying service are eligible for pro-rated vesting, subject to the actual 
achievement against the predefined targets or a market condition as discussed above, based on the number of full years of 
service completed following the grant date (but delivery of the shares remains deferred).

As a result, PUs are generally expensed over the three-year performance period.

All PUs accrue dividend equivalents associated with the underlying stock as we declare dividends. Dividends will generally be paid 
to holders of PUs in cash upon the settlement date of the associated PU and will be forfeited if the PU does not vest.

During the years ended December 31, 2020, 2019 and 2018, we issued 425,777, 380,856 and 353,507 PUs, respectively. We 
forecast the likelihood of achieving the predefined targets for our PUs in order to calculate the expected PUs to be earned. We 
record a compensation charge based on either the forecasted PUs to be earned (during the performance period) or the actual PUs 
earned (at the three-year anniversary of the grant date) over the vesting period for each of the awards. The fair value of PUs based 
on our performance against predefined targets is the excess of the market price of our common stock at the date of grant over the 
purchase price (which is typically zero). For PUs earned based on a market condition, we utilize a Monte Carlo simulation to fair 
value these awards at the date of grant, and such fair value is expensed over the three-year performance period. As of 
December 31, 2020, we expected 100%, 100% and 0% achievement of the predefined targets associated with the awards of PUs 
made in 2020, 2019 and 2018, respectively. 

The fair value of earned PUs that vested during the years ended December 31, 2020, 2019 and 2018, is as follows:

YEAR ENDED DECEMBER 31,

2020

2019

2018

Fair value of earned PUs that vested

$ 

11,812  $ 

6,503  $ 

3,117 

A summary of PU activity for the year ended December 31, 2020 is as follows:

ORIGINAL
PU AWARDS

PU
ADJUSTMENT(1)

TOTAL PU
AWARDS

WEIGHTED-AVERAGE
GRANT-DATE
FAIR VALUE

Non-vested at December 31, 2019

1,113,691 

(314,798) 

798,893  $ 

Granted

Vested

Forfeited/Performance or Market Conditions Not Achieved

425,777 

(316,730) 

(149,529) 

— 

— 

(4,710) 

425,777 

(316,730) 

(154,239) 

Non-vested at December 31, 2020

1,073,209 

(319,508) 

753,701  $ 

36.56 

34.85 

37.29 

28.28 

36.98 

(1) Represents an increase or decrease in the number of original PUs awarded based on either the final performance criteria or market condition achievement at the end 

of the performance period of such PUs or a change in estimated awards based on the forecasted performance against the predefined targets.

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IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

EMPLOYEE STOCK PURCHASE PLAN
We offer an ESPP in which participation is available to substantially all United States and Canadian employees who meet certain 
service eligibility requirements. The ESPP provides for the purchase of our common stock by eligible employees through 
successive offering periods. We have historically had two six-month offering periods per year, the first of which generally runs from 
June 1 through November 30 and the second of which generally runs from December 1 through May 31. During each offering 
period, participating employees accumulate after-tax payroll contributions, up to a maximum of 15% of their compensation, to pay 
the purchase price at the end of the offering. Participating employees may withdraw from an offering before the purchase date and 
obtain a refund of the amounts withheld as payroll deductions. At the end of the offering period, outstanding options under the 
ESPP are exercised, and each employee’s accumulated contributions are used to purchase our common stock. The price for 
shares purchased under the ESPP is 95% of the fair market price at the end of the offering period, without a look-back feature. As 
a result, we do not recognize compensation expense for the ESPP shares purchased. For the years ended December 31, 2020, 
2019 and 2018, there were 159,853, 129,505 and 119,123 shares, respectively, purchased under the ESPP. As of December 31, 
2020, we have 216,287 shares available under the ESPP.

________________________________________________________

As of December 31, 2020, unrecognized compensation cost related to the unvested portion of our Employee Stock-Based Awards 
was $39,056 and is expected to be recognized over a weighted-average period of 1.7 years.

We issue shares of our common stock for the exercises of stock options, and the vesting of RSUs, PUs and shares of our common 
stock under our ESPP from unissued reserved shares.

T. OTHER EXPENSE (INCOME), NET

Consolidated other expense (income), net for the years ended December 31, 2020, 2019 and 2018 consists of the following:

Foreign currency transaction losses (gains), net(1)

Debt extinguishment expense
Other, net(2)

Other Expense (Income), Net

YEAR ENDED DECEMBER 31,

2020

2019

2018

$ 

29,830  $ 

24,852  $ 

(15,567) 

68,300 

45,415 

— 

9,046 

— 

3,875 

$ 

143,545  $ 

33,898  $ 

(11,692) 

(1) The gain or loss on foreign currency transactions, calculated as the difference between the historical exchange rate and the exchange rate at the applicable 

measurement date, includes gains or losses primarily related to (i) borrowings in certain foreign currencies under our Revolving Credit Facility (as defined in Note 6), 
(ii) our previously outstanding Euro Notes (as defined in Note 6), (iii) certain foreign currency denominated intercompany obligations of our foreign subsidiaries to us 
and between our foreign subsidiaries, which are not considered permanently invested and (iv) amounts that are paid or received on the net settlement amount from 
forward contracts (as more fully discussed in Note 5).

(2) Other, net for the year ended December 31, 2020 consists primarily of changes in the estimated value of our mandatorily redeemable noncontrolling interests as well 

as losses on our equity method investments.

U. INCOME TAXES

Accounting for income taxes requires the recognition of deferred tax assets and liabilities for the expected future tax consequences 
of temporary differences between the tax and financial reporting bases of assets and liabilities and for loss and credit 
carryforwards. Valuation allowances are provided when recovery of deferred tax assets does not meet the more likely than not 
standard as defined in GAAP. We have elected to recognize interest and penalties associated with uncertain tax positions as a 
component of the Provision (benefit) for income taxes in the accompanying Consolidated Statements of Operations.

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IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

V. INCOME (LOSS) PER SHARE—BASIC AND DILUTED

Basic income (loss) per common share is calculated by dividing income (loss) by the weighted average number of common shares 
outstanding. The calculation of diluted income (loss) per share is consistent with that of basic income (loss) per share but gives 
effect to all potential common shares (that is, securities such as stock options, RSUs, PUs, warrants or convertible securities) that 
were outstanding during the period, unless the effect is antidilutive. 

The calculation of basic and diluted income (loss) per share for the years ended December 31, 2020, 2019 and 2018 is as follows:

Income (loss) from continuing operations

$ 

343,096  $ 

268,211  $ 

Less: Net income (loss) attributable to noncontrolling interests

403 

938 

Income (loss) from continuing operations (utilized in numerator of Earnings Per 
Share calculation)

Income (loss) from discontinued operations, net of tax

342,693 

— 

267,273 

104 

Net income (loss) attributable to Iron Mountain Incorporated

$ 

342,693  $ 

267,377  $ 

367,558 

1,198 

366,360 

(12,427) 

353,933 

YEAR ENDED DECEMBER 31,

2020

2019

2018

Weighted-average shares—basic

Effect of dilutive potential stock options

Effect of dilutive potential RSUs and PUs

Weighted-average shares—diluted

Earnings (losses) per share—basic:

Income (loss) from continuing operations

(Loss) income from discontinued operations, net of tax
Net income (loss) attributable to Iron Mountain Incorporated(1)

Earnings (losses) per share—diluted:

Income (loss) from continuing operations

(Loss) income from discontinued operations, net of tax
Net income (loss) attributable to Iron Mountain Incorporated(1)

288,183,000 

286,971,000 

285,913,000 

24,903 

435,287 

145,509 

570,435 

234,558 

505,030 

288,643,190 

287,686,944 

286,652,588 

$ 

$ 

$ 

$ 

1.19  $ 

— 

1.19  $ 

1.19  $ 

— 

1.19  $ 

0.93  $ 

— 

0.93  $ 

0.93  $ 

— 

0.93  $ 

1.28 

(0.04) 

1.24 

1.28 

(0.04) 

1.23 

Antidilutive stock options, RSUs and PUs, excluded from the calculation

5,663,981 

4,475,745 

3,258,078 

(1) Columns may not foot due to rounding. 

W. NEW ACCOUNTING PRONOUNCEMENTS

RECENTLY ADOPTED ACCOUNTING PRONOUNCEMENTS
In August 2018, the FASB issued ASU No. 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework – Changes to the 
Disclosure Requirements for Fair Value Measurement (“ASU 2018-13”), which makes a number of changes meant to add, modify 
or remove certain disclosure requirements associated with the movement of our financial assets and liabilities among the three 
levels of the fair value hierarchy. We adopted ASU 2018-13 on January 1, 2020. ASU 2018-13 did not have a material impact on 
our consolidated financial statements.

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IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

OTHER AS YET ADOPTED ACCOUNTING PRONOUNCEMENTS
In March 2020, the FASB issued ASU No. 2020-04, Reference Rate Reform (Topic 848) (“ASU 2020-04”). ASU 2020-04 provides 
optional expedients and exceptions for applying U.S. GAAP to contracts, hedging relationships, and other transactions, for a limited 
period of time, to ease the potential burden of recognizing the effects of reference rate reform on financial reporting. The 
amendments in ASU 2020-04 apply to contracts, hedging relationships and other transactions that reference the London Inter-Bank 
Offered Rate (“LIBOR”) or another reference rate expected to be discontinued due to the global transition away from LIBOR and 
certain other interbank offered rates. An entity may elect to apply the amendments provided by ASU 2020-04 beginning March 12, 
2020 through December 31, 2022. We are currently evaluating these amendments as they relate to our contracts, hedging 
relationships and other transactions that reference LIBOR, as well as the impact of ASU 2020-04 on our consolidated financial 
statements.

In December 2019, the FASB issued ASU No. 2019-12, Income Taxes (Topic 740) (“ASU 2019-12”). ASU 2019-12 simplifies the 
accounting for income taxes by removing certain exceptions for recognizing deferred taxes for investments, performing intra-period 
allocation and calculating income taxes in interim periods. ASU 2019-12 also adds guidance to reduce complexity in certain areas, 
including recognizing deferred taxes for tax goodwill and allocating taxes to members of a consolidated group. ASU 2019-12 is 
effective for us on January 1, 2021. We do not expect that ASU 2019-12 will have a material impact on our consolidated financial 
statements.

3. ACQUISITIONS AND JOINT VENTURES

ACQUISITIONS

We account for acquisitions using the acquisition method of accounting, and, accordingly, the assets and liabilities acquired are 
recorded at their estimated fair values and the results of operations for each acquisition have been included in our consolidated 
results from their respective acquisition dates. 

A. ACQUISITIONS COMPLETED DURING THE YEAR ENDED DECEMBER 31, 2020
Prior to January 9, 2020, we owned a 25% equity interest in OSG Records Management (Europe) Limited ("OSG"). On January 9, 
2020, we acquired the remaining 75% equity interest in OSG for cash consideration of approximately $95,500 (the "OSG 
Acquisition"). The OSG Acquisition enabled us to extend our Global RIM Business in Russia, Ukraine, Kazakhstan, Belarus, and 
Armenia. The results of OSG are fully consolidated within our consolidated financial statements from the closing date of the OSG 
Acquisition. In connection with the OSG Acquisition, our previously held 25% equity investment in OSG was remeasured to fair 
value at the closing date of the OSG Acquisition; as a result, we recorded a gain of approximately $10,000 during the first quarter of 
2020, which is included as a component of Other expense (income), net on our Consolidated Statements of Operations. The fair 
value of the 25% equity investment in OSG was determined based on the purchase price of the OSG Acquisition. 

On February 17, 2020, in order to enhance our existing operations in the United Arab Emirates, we acquired Glenbeigh Records 
Management DWC-LLC, a storage and records management company, for total cash consideration of approximately $29,100.

B. ACQUISITIONS COMPLETED DURING THE YEAR ENDED DECEMBER 31, 2019
During the year ended December 31, 2019, in order to enhance our existing operations in the United States, Colombia, Germany, 
Hong Kong, Latvia, Slovakia, Switzerland, Thailand and the United Kingdom and to expand our operations into Bulgaria, we 
completed the acquisition of 10 storage and records management companies and one art storage company for total cash 
consideration of approximately $51,000. The individual purchase prices of these acquisitions ranged from approximately $700 to 
$12,500. 

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IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

3. ACQUISITIONS AND JOINT VENTURES (CONTINUED)

C. ACQUISITIONS COMPLETED DURING THE YEAR ENDED DECEMBER 31, 2018

ACQUISITION OF IO DATA CENTERS 
On January 10, 2018, we completed the acquisition of the United States operations of IODC, a leading data center colocation 
space and solutions provider based in Phoenix, Arizona, including the land and buildings associated with four data centers in 
Phoenix and Scottsdale, Arizona; Edison, New Jersey; and Columbus, Ohio (the “IODC Transaction”). At the closing of the IODC 
Transaction, we paid approximately $1,347,000. In February 2019, we paid approximately $31,000 in additional purchase price 
associated with the execution of customer contracts from the closing through the one-year anniversary of the IODC Transaction, 
which, net of amortization, is reported as a third-party commissions asset as a component of Other within Other assets, net in our 
Consolidated Balance Sheets at December 31, 2020 and 2019.

OTHER 2018 NOTEWORTHY ACQUISITIONS
On May 25, 2018, in order to further expand our data center operations in Europe, we acquired EvoSwitch Netherlands B.V. and 
EvoSwitch Global Services B.V., a data center colocation space and solutions provider with a data center in Amsterdam (the 
“EvoSwitch Transaction”), for (i) cash consideration of 189,000 Euros (or approximately $222,000, based upon the exchange rate 
between the Euro and the United States dollar on the closing date of the EvoSwitch Transaction) and (ii) $25,000 of additional 
consideration in the form of future services we will provide to the seller, which is included in purchase price holdbacks and other in 
the allocation of the purchase price paid table below.

On March 8, 2018, in order to expand our data center operations into Europe and Asia, we acquired the operations of two data 
centers in London and Singapore from Credit Suisse International and Credit Suisse AG (together, “Credit Suisse”) for a total of (i) 
34,600 British pounds sterling and (ii) 81,000 Singapore dollars (or collectively, approximately $111,400, based upon the exchange 
rates between the United States dollar and the British pound sterling and Singapore dollar on the closing date of the Credit Suisse 
transaction) (the “Credit Suisse Transaction”). As part of the Credit Suisse Transaction, Credit Suisse entered into a long-term 
lease with us to maintain existing data center operations.

In addition to the transactions noted above, during 2018, in order to enhance our existing operations in the United States, Brazil, 
China, India, Ireland, Philippines, South Korea and the United Kingdom and to expand our operations into Croatia, we completed 
the acquisition of 11 storage and records management companies and three art storage companies for total consideration of 
approximately $98,100. The individual purchase prices of these acquisitions ranged from approximately $1,000 to $34,100.

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IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

3. ACQUISITIONS AND JOINT VENTURES (CONTINUED)

D. PURCHASE PRICE ALLOCATION

A summary of the cumulative consideration paid and the allocation of the purchase price paid for all of our acquisitions in each 
respective year is as follows:

2020

2019

TOTAL

TOTAL

IODC 
TRANSACTION

2018

OTHER FISCAL 
YEAR 2018 
ACQUISITIONS

TOTAL

$  124,614  $ 

53,230  $ 

1,347,046  $ 

432,078  $  1,779,124 

— 

— 

35,218 

35,218 

— 

— 

1,347,046 

467,296 

1,814,342 

Cash Paid (gross of cash acquired)(1)
Purchase Price Holdbacks and Other(2)

Fair Value of Investments Applied to Acquisitions

Total Consideration

Fair Value of Identifiable Assets Acquired:

Cash

Accounts Receivable, Prepaid Expenses and Other Assets  
Property, Plant and Equipment(3)
Customer Relationship Intangible Assets(4)

Operating Lease Right-of-Use Assets
Data Center In-Place Leases(5)
Data Center Tenant Relationships(6)
Data Center Above-Market Leases(7)

Debt Assumed

— 

27,276 

151,890 

6,545 

16,559 

52,021 

79,065 

100,040 

— 

— 

— 

(27,363) 

4,135 

— 

57,365 

2,260 

3,102 

5,396 

22,071 

16,956 

— 

— 

— 

— 

34,307 

7,070 

863,027 

— 

— 

104,340 

77,362 

16,439 

— 

10,227 

17,662 

44,534 

24,732 

225,848 

1,088,875 

44,622 

44,622 

— 

36,130 

18,410 

2,381 

(12,312) 

(17,206) 

— 

(43,218) 

(694) 

— 

140,470 

95,772 

18,820 

(12,312) 

(53,436) 

— 

(43,218) 

(12,115) 

Accounts Payable, Accrued Expenses and Other Liabilities  

(19,564) 

(3,233) 

(36,230) 

Operating Lease Liabilities

Deferred Income Taxes
Data Center Below-Market Leases(7)

(100,040) 

(16,956) 

(9,631) 

(1,813) 

— 

— 

— 

— 

(11,421) 

Total Fair Value of Identifiable Net Assets Acquired

97,632 

27,783 

1,054,894 

281,850 

1,336,744 

Goodwill Initially Recorded(8)

$ 

54,258  $ 

29,582  $ 

292,152  $ 

185,446  $ 

477,598 

(1) Cash paid for acquisitions, net of cash acquired in our Consolidated Statement of Cash Flows includes contingent and other payments of $512, $7,267 and $23,967 

for the years ended December 31, 2020, 2019 and 2018, respectively, related to acquisitions made in the years prior to 2020, 2019 and 2018, respectively.

(2) Purchase price holdbacks and other includes $18,824 purchase price accrued for the EvoSwitch Transaction in 2018.

(3) Consists primarily of buildings, building improvements, leasehold improvements, data center infrastructure, racking structures, warehouse equipment and computer 

hardware and software.

(4) The weighted average lives of Customer Relationship Intangible Assets associated with acquisitions in 2020, 2019 and 2018 was 14 years, 16 years and 10 years, 

respectively.

(5) The weighted average lives of Data Center In-Place Leases associated with acquisitions in 2018 was six years.

(6) The weighted average lives of Data Center Tenant Relationships associated with acquisitions in 2018 was nine years.

(7) The weighted average lives of Data Center Above-Market Leases associated with acquisitions in 2018 was three years and the weighted average lives of data center 

below-market leases associated with acquisitions in 2018 was seven years.

(8) The goodwill associated with acquisitions, including IODC, is primarily attributable to the assembled workforce, expanded market opportunities and costs and other 

operating synergies anticipated upon the integration of the operations of our business and the acquired businesses.

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Part IV

IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

3. ACQUISITIONS AND JOINT VENTURES (CONTINUED)

Allocations of the purchase price for acquisitions are based on estimates of the fair value of the net assets acquired and are subject 
to adjustment upon the finalization of the purchase price allocations. The accounting for business combinations requires estimates 
and judgments regarding expectations for future cash flows of the acquired business, and the allocations of those cash flows to 
identifiable tangible and intangible assets, in determining the assets acquired and liabilities assumed. The fair values assigned to 
tangible and intangible assets acquired and liabilities assumed, including contingent consideration, are based on management’s 
best estimates and assumptions, as well as other information compiled by management, including valuations that utilize customary 
valuation procedures and techniques. The estimates and assumptions underlying the initial valuations are subject to the collection 
of information necessary to complete the valuations within the measurement periods, which are up to one year from the respective 
acquisition dates.

As the valuation of certain assets and liabilities for purposes of purchase price allocations are preliminary in nature, they are 
subject to adjustment as additional information is obtained about the facts and circumstances regarding these assets and liabilities 
that existed at the acquisition date. Any adjustments to our estimates of purchase price allocation will be made in the periods in 
which the adjustments are determined and the cumulative effect of such adjustments will be calculated as if the adjustments had 
been completed as of the acquisition dates. Adjustments recorded during the fourth quarter of 2020 and year ended December 31, 
2020 were not material to our results from operations.

JOINT VENTURES

A. FRANKFURT DATA CENTER JOINT VENTURE
In October 2020, we formed a joint venture (the “Frankfurt JV”) with AGC Equity Partners (“AGC”) to design and develop a 280,000 
square foot, 27 megawatt, hyperscale data center currently under development in Frankfurt, Germany (the “Frankfurt JV 
Transaction”). AGC acquired an 80% equity interest in the Frankfurt JV, while we retained a 20% equity interest (the "Frankfurt JV 
Investment"). The total cash consideration for the 80% equity interest sold to AGC was approximately $105,000. We received 
approximately $93,300 (gross of certain transaction expenses) upon the closing of the Frankfurt JV, and we are entitled to receive 
an additional approximately $11,700 upon the completion of development of the data center, which we expect to occur in the 
second quarter of 2021. In connection with the Frankfurt JV Transaction, we also entered into agreements whereby we will earn 
various fees, including property management and construction and development fees, for services we are providing to the Frankfurt 
JV. 

As a result of the Frankfurt JV Transaction, we recognized a gain of approximately $24,100, representing the excess of the fair 
value of the consideration received over the carrying value of the assets, which consisted primarily of land and land development 
assets which were previously included within our Global Data Center Business segment. 

We account for our Frankfurt JV Investment as an equity method investment. At the closing date of the Frankfurt JV Transaction, 
the fair value of the Frankfurt JV Investment was approximately $23,300. The carrying value of our Frankfurt JV Investment at 
December 31, 2020 was $26,500, which is presented as a component of Other within Other assets, net in our Consolidated 
Balance Sheet.

B. MAKESPACE JOINT VENTURE
In March 2019, we formed a joint venture entity (the “MakeSpace JV”) with MakeSpace Labs, Inc., a consumer storage provider 
(“MakeSpace”). In the second quarter of 2020, we committed to participate in a round of equity funding for the MakeSpace JV 
whereby we agreed to contribute $36,000 of the $45,000 being raised in installments beginning in May 2020 through October 2021. 
We account for our investment in the MakeSpace JV as an equity method investment. At December 31, 2020 and 2019, we owned 
approximately 39% and 34%, respectively, of the outstanding equity in the MakeSpace JV, and the carrying value of our investment 
in the MakeSpace JV at December 31, 2020 and 2019 was $16,924 and $18,570, respectively, which is presented as a component 
of Other within Other assets, net in our Consolidated Balance Sheets. See Note 4 for additional detail on the divestment of our 
consumer storage business that was completed in conjunction with the formation of the MakeSpace JV.

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Part IV

IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

4. DIVESTMENTS

In March 2019, we contributed our customer contracts and certain intellectual property and other assets used by us to operate our 
consumer storage business in the United States and Canada (the “IM Consumer Storage Assets”) and approximately $20,000 in 
cash (gross of certain transaction expenses) (the “Cash Contribution”) to the MakeSpace JV (the "Consumer Storage 
Transaction"), established by us and MakeSpace. Upon the closing of the Consumer Storage Transaction on March 19, 2019, the 
MakeSpace JV owned (i) the IM Consumer Storage Assets, (ii) the Cash Contribution and (iii) the customer contracts, intellectual 
property and certain other assets used by MakeSpace to operate its consumer storage business in the United States. As part of the 
Consumer Storage Transaction, we received an initial equity interest of approximately 34% in the MakeSpace JV (the "MakeSpace 
Investment"). In connection with the Consumer Storage Transaction and the investment in the MakeSpace JV, we also entered into 
a storage and service agreement with the MakeSpace JV to provide certain storage and related services to the MakeSpace JV 
(see Note 11). 

We have concluded that the divestment of the IM Consumer Storage Assets in the Consumer Storage Transaction does not meet 
the criteria to be reported as discontinued operations in our consolidated financial statements, as our decision to divest this 
business does not represent a strategic shift that will have a major effect on our operations and financial results. Accordingly, the 
revenues and expenses associated with this business are presented as a component of Income (loss) from continuing operations 
in our Consolidated Statements of Operations for the year ended December 31, 2019 through the closing date of the Consumer 
Storage Transaction and for the year ended December 31, 2018 and the cash flows associated with this business are presented as 
a component of cash flows from continuing operations in our Consolidated Statements of Cash Flows for the year ended December 
31, 2019 through the closing date of the Consumer Storage Transaction and for the year ended December 31, 2018.

As a result of the Consumer Storage Transaction, we recorded a gain on sale of approximately $4,200 to Other expense (income), 
net, in the first quarter of 2019, representing the excess of the fair value of the consideration received over the sum of (i) the 
carrying value of our consumer storage operations and (ii) the Cash Contribution.

5. DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES

Derivative instruments we are party to include: (i) interest rate swap agreements (which are designated as cash flow hedges), (ii) 
cross-currency swap agreements (which are designated as net investment hedges) and (iii) foreign exchange currency forward 
contracts (which are not designated as hedges).

INTEREST RATE SWAP AGREEMENTS DESIGNATED AS CASH FLOW HEDGES

In March 2018, we entered into interest rate swap agreements to limit our exposure to changes in interest rates on a portion of our 
floating rate indebtedness. As of December 31, 2020 and 2019, we had $350,000 in notional value of interest rate swap 
agreements outstanding, which expire in March 2022. Under the interest rate swap agreements, we receive variable rate interest 
payments associated with the notional amount of each interest rate swap, based upon one-month LIBOR, in exchange for the 
payment of fixed interest rates as specified in the interest rate swap agreements. 

In July 2019, we entered into forward-starting interest rate swap agreements to limit our exposure to changes in interest rates on a 
portion of our floating rate indebtedness once our current interest rate swap agreements expire in March 2022. The forward-starting 
interest rate swap agreements have $350,000 in notional value, commence in March 2022 and expire in March 2024. Under the 
swap agreements, we will receive variable rate interest payments based upon one-month LIBOR, in exchange for the payment of 
fixed interest rates as specified in the interest rate swap agreements.

We have designated these interest rate swap agreements, including the forward-starting interest rate swap agreements, as cash 
flow hedges. Unrealized gains are recognized as assets, while unrealized losses are recognized as liabilities. 

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Part IV

IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

5. DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (CONTINUED)

CROSS-CURRENCY SWAP AGREEMENTS DESIGNATED AS A HEDGE OF NET 
INVESTMENT

In August 2019, we entered into cross-currency swap agreements to hedge the variability of exchange rate impacts between the 
United States dollar and the Euro. Under the terms of the cross-currency swap agreements we notionally exchanged approximately 
$110,000 at an interest rate of 6.0% for approximately 99,055 Euros at a weighted average interest rate of approximately 3.65%. 
These cross-currency swap agreements expire in August 2023 (“August 2023 Cross Currency Swap Agreements”).

In September 2020, we entered into cross-currency swap agreements to hedge the variability of exchange rates impacts between 
the United States dollar and the Euro. Under the terms of the cross-currency swap agreements, we notionally exchanged 
approximately $359,200 at an interest rate of 4.5% for approximately 300,000 Euros at a weighted average interest rate of 
approximately 3.4%. These cross-currency swap agreements expire in February 2026 (“February 2026 Cross Currency Swap 
Agreements”).

We have designated these cross-currency swap agreements as hedge of net investments against certain of our Euro denominated 
subsidiaries and they require an exchange of the notional amounts at maturity. These cross-currency swap agreements are marked 
to market at each reporting period, representing the fair values of the cross-currency swap agreements, and any changes in fair 
value are recognized as a component of Accumulated other comprehensive items, net. Unrealized gains are recognized as assets 
while unrealized losses are recognized as liabilities.

FOREIGN EXCHANGE CURRENCY FORWARD CONTRACTS NOT DESIGNATED AS 
HEDGING INSTRUMENTS 

On occasion, we enter into forward contracts to hedge our exposures associated with certain foreign currencies. We have not 
designated any of these forward contracts as hedges. Our policy is to record the fair value of each derivative instrument on a gross 
basis. As of December 31, 2020 and 2019, we had no outstanding forward contracts. 

(Liabilities) assets recognized in our Consolidated Balance Sheets as of December 31, 2020 and 2019 by derivative instrument are 
as follows:

DERIVATIVE INSTRUMENT(1)
Cash Flow Hedges(2)

Interest Rate Swap Agreements 

Net Investment Hedges(3)

August 2023 Cross Currency Swap Agreements

 February 2026 Cross Currency Swap Agreements

DECEMBER 31, 2020

DECEMBER 31, 2019

$ 

(21,062)  $ 

(8,774) 

(8,229) 

(20,412) 

(982) 

— 

(1) Our derivative assets are included as a component of Other within Other assets, net and our derivative liabilities are included as a component of Other long-term 

liabilities in our Consolidated Balance Sheets.

(2) As of December 31, 2020, cumulative net losses of $21,062 are recorded within Accumulated other comprehensive items, net associated with these interest rate 

swap agreements. 

(3) As of December 31, 2020, cumulative net losses of $28,641 are recorded within Accumulated other comprehensive items, net associated with these cross currency 

swap agreements.

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Part IV

IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

5. DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (CONTINUED)

Losses (gains) recognized during the years ending December 31, 2020, 2019 and 2018, by derivative instrument, are as follows: 

DERIVATIVE INSTRUMENT
Derivative Instruments Designated as Hedging Instruments(1)

Cash Flow Hedges

Interest Rate Swap Agreements 

Net Investment Hedges

August 2023 Cross Currency Swap Agreements

February 2026 Cross Currency Swap Agreements
Derivative Instruments Not Designated as Hedging Instruments(2)

Foreign Exchange Currency Forward Contracts

YEAR ENDED DECEMBER 31,

2020

2019

2018

$ 

12,288  $ 

7,801  $ 

973 

7,247 

20,412 

— 

982 

— 

737 

— 

— 

4,954 

(1) These amounts are recognized as unrealized losses (gains), a component of Accumulated other comprehensive items, net.

(2) These amounts are recognized as foreign exchange losses (gains), a component of Other expense (income), net. Net cash payments (receipts) included in cash 
from operating activities related to settlements associated with foreign currency forward contracts for the years ended December 31, 2020, 2019 and 2018 are $0, 
$737 and $5,797, respectively. 

EURO NOTES DESIGNATED AS A HEDGE OF NET INVESTMENT 

Prior to their redemption in August 2020, we designated a portion of our Euro Notes as a hedge of net investment of certain of our 
Euro denominated subsidiaries. From January 1, 2020 through the date of redemption and for the years ended December 31, 2019 
and 2018 we designated, on average, 300,000, 284,986 and 224,424 Euros, respectively, of our Euro Notes as a hedge of net 
investment of certain of our Euro denominated subsidiaries. As a result, we recorded the following foreign exchange losses (gains) 
related to the change in fair value of such debt due to currency translation adjustments as a component of Accumulated other 
comprehensive items, net:

Foreign exchange losses (gains) associated with net investment hedge

$ 

17,005  $ 

6,003  $ 

11,070 

As of December 31, 2020, cumulative net gains of $3,256, net of tax, are recorded in Accumulated other comprehensive items, net 
associated with this net investment hedge. 

YEAR ENDED DECEMBER 31,

2020

2019

2018

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Part IV

IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

6. DEBT 

Long-term debt is as follows:

DECEMBER 31, 2020

DECEMBER 31, 2019

DEBT 
(INCLUSIVE OF 
DISCOUNT)

UNAMORTIZED 
DEFERRED 
FINANCING 
COSTS

CARRYING 
AMOUNT

FAIR
VALUE

DEBT 
(INCLUSIVE OF 
DISCOUNT)

UNAMORTIZED 
DEFERRED 
FINANCING 
COSTS

CARRYING 
AMOUNT

FAIR
VALUE

$ 

— 

$ 

(8,620)  $ 

(8,620)  $ 

— 

$ 

348,808 

$ 

(12,053)  $ 

336,755 

$  348,808 

215,625 

679,621 

— 

215,625 

215,625 

(6,244) 

673,377 

680,750 

228,125 

686,395 

— 

228,125 

228,125 

(7,493) 

678,902 

686,890 

243,152 

(1,624) 

241,528 

244,014 

226,924 

(2,313) 

224,611 

228,156 

191,101 

(1,307) 

189,794 

191,101 

184,601 

(1,801) 

182,800 

184,601 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

500,000 

(2,436) 

497,564 

503,450 

600,000 

(4,027) 

595,973 

613,500 

192,058 

(2,071) 

189,987 

199,380 

1,000,000 

(6,409) 

993,591 

  1,010,625 

336,468 

(3,462) 

333,006 

345,660 

546,003 

(4,983) 

541,020 

553,101 

527,432 

(5,809) 

521,623 

539,892 

— 

— 

— 

— 

250,000 

(2,756) 

247,244 

261,641 

1,000,000 

(9,598) 

990,402 

  1,046,250 

1,000,000 

(11,020) 

988,980 

  1,029,475 

825,000 

(8,561) 

816,439 

868,313 

825,000 

(9,742) 

815,258 

859,598 

500,000 

(5,486) 

494,514 

523,125 

— 

— 

— 

— 

1,000,000 

(12,658) 

987,342 

  1,050,000 

1,000,000 

(14,104) 

985,896 

  1,015,640 

1,300,000 

(14,416) 

1,285,584 

  1,400,750 

1,100,000 

(12,648) 

1,087,352 

  1,138,500 

600,000 

(6,727) 

593,273 

660,000 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

511,922 

(1,086) 

510,836 

511,922 

573,671 

(1,388) 

572,283 

623,671 

85,000 

8,797,424 

(193,759) 

(152) 

84,848 

85,000 

(94,110) 

8,703,314 

— 

(193,759) 

272,062 

8,751,544 

(389,013) 

(81) 

271,981 

272,062 

(86,965) 

8,664,579 

— 

(389,013) 

$ 

8,603,665 

$ 

(94,110)  $  8,509,555 

$ 

8,362,531 

$ 

(86,965)  $  8,275,566 

Revolving Credit Facility(1)
Term Loan A(1)
Term Loan B(1)(2)

Australian Dollar Term Loan (the 
“AUD Term Loan”)(3)(4)

UK Bilateral Revolving Credit 
Facility(4)
43/8% Senior Notes due 2021 (the 
“43/8% Notes”)(5)(6)(7)
6% Senior Notes due 2023 (the 
“6% Notes”)(5)(6)
53/8% CAD Senior Notes due 
2023 (the “CAD Notes”)(5)(7)(8)
53/4% Senior Subordinated Notes 
due 2024 (the “53/4% Notes”)(5)(6)
3% Euro Senior Notes due 2025 
(the “Euro Notes”)(5)(6)(7)

37/8% GBP Senior Notes due 
2025 (the “GBP Notes “)(5)(7)(9)

53/8% Senior Notes due 2026 (the 
“53/8% Notes”)(5)(7)(10)
47/8% Senior Notes due 2027 (the 
“47/8% Notes due 2027”)(5)(6)(7)
51/4% Senior Notes due 2028 (the 
“51/4% Notes due 2028”)(5)(6)(7)

5% Senior Notes due 2028 (the 
“5% Notes”)(5)(6)(7)

47/8% Senior Notes due 2029 (the 
“47/8% Notes due 2029”)(5)(6)(7)
51/4% Senior Notes due 2030 (the 
“51/4% Notes due 2030”)(5)(6)(7)
41/2% Senior Notes due 2031 (the 
“41/2% Notes”)(5)(6)(7)
55/8% Senior Notes due 2032 (the 
“55/8% Notes”)(5)(6)(7)
Real Estate Mortgages, 
Financing Lease Liabilities and 
Other(11)

Accounts Receivable 
Securitization Program(12)

Total Long-term Debt

Less Current Portion

Long-term Debt, Net of Current 
Portion

104

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Part IV

IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

6. DEBT (CONTINUED)
(1) The capital stock or other equity interests of most of our United States subsidiaries, and up to 66% of the capital stock or other equity interests of most of our first-tier 
foreign subsidiaries, are pledged to secure these debt instruments, together with all intercompany obligations (including promissory notes) of subsidiaries owed to us 
or to one of our United States subsidiary guarantors. In addition, Iron Mountain Canada Operations ULC (“Canada Company”) has pledged 66% of the capital stock 
of its subsidiaries, and all intercompany obligations (including promissory notes) owed to or held by it, to secure the Canadian dollar subfacility under the Revolving 
Credit Facility. The fair value (Level 3 of fair value hierarchy described at Note 2.o.) of these debt instruments approximates the carrying value (as borrowings under 
these debt instruments are based on current variable market interest rates (plus a margin that is subject to change based on our consolidated leverage ratio)), as of 
December 31, 2020 and 2019.

(2) The amount of debt for the Term Loan B (as defined below) reflects an unamortized original issue discount of $1,129 and $1,355 as of December 31, 2020 and 2019, 

respectively.

(3) The amount of debt for the AUD Term Loan reflects an unamortized original issue discount of $862 and $1,232 as of December 31, 2020 and 2019, respectively.

(4) The fair value (Level 3 of fair value hierarchy described at Note 2.o.) of this debt instrument approximates the carrying value as borrowings under this debt instrument 

are based on a current variable market interest rate.

(5) The fair values (Level 1 of fair value hierarchy described at Note 2.o.) of these debt instruments are based on quoted market prices for these notes on December 31, 

2020 and 2019, respectively.

(6) Collectively, the “Parent Notes". IMI is the direct obligor on the Parent Notes, which are fully and unconditionally guaranteed, on a senior basis, by IMI’s direct and 

indirect 100% owned United States subsidiaries that represent the substantial majority of our United States operations (the “Guarantors”). These guarantees are joint 
and several obligations of the Guarantors. The remainder of our subsidiaries do not guarantee the Parent Notes.

(7) Collectively, the “Unregistered Notes". The Unregistered Notes have not been registered under the Securities Act of 1933, as amended (the “Securities Act”), or 
under the securities laws of any other jurisdiction. Unless they are registered, the Unregistered Notes may be offered only in transactions that are exempt from 
registration under the Securities Act or the securities laws of any other jurisdiction.

(8) Canada Company was the direct obligor on the CAD Notes, which were fully and unconditionally guaranteed, on a senior basis, by IMI and the Guarantors. These 

guarantees were joint and several obligations of IMI and the Guarantors. 

(9)

Iron Mountain (UK) PLC (“IM UK”) is the direct obligor on the GBP Notes, which are fully and unconditionally guaranteed, on a senior basis, by IMI and the 
Guarantors. These guarantees are joint and several obligations of IMI and the Guarantors.

(10) Iron Mountain US Holdings, Inc., one of the Guarantors, was the direct obligor on the 53/8% Notes, which were fully and unconditionally guaranteed, on a senior 

basis, by IMI and the other Guarantors. These guarantees were joint and several obligations of IMI and such Guarantors.

(11) We believe the fair value (Level 3 of fair value hierarchy described at Note 2.o.) of this debt approximates its carrying value. This debt includes the following:

Real estate mortgages(i)
Financing lease liabilities(ii)
Other notes and other obligations(iii)

DECEMBER 31, 2020 DECEMBER 31, 2019

$ 

$ 

71,673  $ 

366,311 

73,938 

511,922  $ 

77,036 

367,182 

129,453 

573,671 

(i) Bear interest at approximately 3.3% and 3.9% at December 31, 2020 and 2019, respectively, and includes $50,000 outstanding under our Mortgage 

Securitization Program at both December 31, 2020 and 2019.

(ii) Bear a weighted average interest rate of 5.9% and 5.7% at December 31, 2020 and 2019, respectively.

(iii) These notes and other obligations, which were assumed by us as a result of certain acquisitions bear a weighted average interest rate of 10.7% and 10.8% at 

December 31, 2020 and 2019, respectively.

(12) The Accounts Receivable Securitization Special Purpose Subsidiaries are the obligors under this program. We believe the fair value (Level 3 of fair value hierarchy 

described at Note 2.o.) of this debt approximates its carrying value. 

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Part IV

IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

6. DEBT (CONTINUED)

A. CREDIT AGREEMENT

Our credit agreement (the "Credit Agreement") consists of a revolving credit facility (the “Revolving Credit Facility”) and a term loan 
(the “Term Loan A”). The Revolving Credit Facility enables IMI and certain of its United States and foreign subsidiaries to borrow in 
United States dollars and (subject to sublimits) a variety of other currencies (including Canadian dollars, British pounds sterling and 
Euros, among other currencies) in an aggregate outstanding amount not to exceed $1,750,000. Under the Credit Agreement, we 
have the option to request additional commitments of up to $1,260,000, in the form of term loans or through increased 
commitments under the Revolving Credit Facility, subject to the conditions specified in the Credit Agreement. The Credit Agreement 
is scheduled to mature on June 4, 2023, at which point all obligations become due. The original principal amount of the Term Loan 
A was $250,000 and is to be paid in quarterly installments in an amount equal to $3,125 per quarter, with the remaining balance 
due on June 4, 2023. 

On December 20, 2019, we entered into an amendment to the Credit Agreement. This amendment amended the definition of 
EBITDA and certain other definitions and restrictive covenants contained in the Credit Agreement.

IMI and the Guarantors guarantee all obligations under the Credit Agreement. The interest rate on borrowings under the Credit 
Agreement varies depending on our choice of interest rate and currency options, plus an applicable margin, which varies based on 
our consolidated leverage ratio. Additionally, the Credit Agreement requires the payment of a commitment fee on the unused 
portion of the Revolving Credit Facility, which fee ranges from between 0.25% to 0.4% based on our consolidated leverage ratio 
and fees associated with outstanding letters of credit. As of December 31, 2020, we had no outstanding borrowings under the 
Revolving Credit Facility and $215,625 aggregate outstanding principal amount under the Term Loan A. At December 31, 2020, we 
had various outstanding letters of credit totaling $3,232 under the Revolving Credit Facility. The remaining amount available for 
borrowing under the Revolving Credit Facility as of December 31, 2020, which is based on IMI’s leverage ratio, the last 12 months' 
earnings before interest, taxes, depreciation and amortization and rent expense (“EBITDAR”), other adjustments as defined in the 
Credit Agreement and current external debt, was $1,746,768 (which amount represents the maximum availability as of such date). 
Available borrowings under the Revolving Credit Facility are subject to compliance with our indenture covenants as discussed 
below. The average interest rate in effect for all outstanding borrowings under the Credit Agreement was 1.9% and 3.3% as of 
December 31, 2020 and 2019, respectively. The average interest rate in effect under the Revolving Credit Facility was 3.2% as of 
December 31, 2019, and the interest rate in effect under the Term Loan A as of December 31, 2020 and 2019 was 1.9% and 3.5%, 
respectively.

IMI’s wholly owned subsidiary, Iron Mountain Information Management, LLC (“IMIM”), has an incremental term loan B with a 
principal amount of $700,000 (the “Term Loan B”). The Term Loan B, which matures on January 2, 2026, was issued at 99.75% of 
par. The Term Loan B holders benefit from the same security and guarantees as other borrowings under the Credit Agreement. The 
Term Loan B holders also benefit from the same affirmative and negative covenants as other borrowings under the Credit 
Agreement; however, the Term Loan B holders are not generally entitled to the benefits of the financial covenants under the Credit 
Agreement.

Principal payments on the Term Loan B are to be paid in quarterly installments of $1,750 per quarter during the period June 30, 
2018 through December 31, 2025, with the balance due on January 2, 2026. The Term Loan B may be prepaid without penalty at 
any time. The Term Loan B bears interest at a rate of LIBOR plus 1.75%. As of December 31, 2020, we had $679,621 aggregate 
outstanding principal amount under the Term Loan B. The interest rate in effect under Term Loan B as of December 31, 2020 and 
2019 was 1.9% and 3.6%, respectively.

REVOLVING CREDIT FACILITY
$1,750,000
Outstanding borrowings
$0

TERM LOAN A
$250,000
Aggregate outstanding principal amount
$215,625

TERM LOAN B
$700,000
Aggregate outstanding principal amount
$679,621

N/A
Interest rate
As of December 31, 2020

1.9%
Interest rate
As of December 31, 2020

1.9%
Interest rate
As of December 31, 2020

106

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Part IV

IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

6. DEBT (CONTINUED)

B. NOTES ISSUED UNDER INDENTURES

Each series of notes shown below (i) is effectively subordinated to all of our secured indebtedness, including under the Credit 
Agreement, to the extent of the value of the collateral securing such indebtedness, (ii) ranks pari passu in right of payment with 
each other and with debt outstanding under the Credit Agreement, the senior notes shown below and other “senior debt” we incur 
from time to time, and (iii) is structurally subordinated to all liabilities of our subsidiaries that do not guarantee such series of notes.

The key terms of our indentures are as follows:

SENIOR NOTES

GBP Notes
47/8% Notes due 2027
51/4% Notes due 2028
5% Notes
47/8% Notes due 2029
51/4% Notes due 2030
41/2% Notes
55/8% Notes

AGGREGATE
PRINCIPAL 
AMOUNT

DIRECT 
OBLIGOR

MATURITY DATE

£ 

400,000   

IM UK

November 15, 2025

$  1,000,000 

$ 

$ 

825,000 

500,000 

$  1,000,000 

$  1,300,000 

$  1,100,000 

$ 

600,000 

IMI

IMI

IMI

IMI

IMI

IMI

IMI

September 15, 2027

March 15, 2028

July 15, 2028

September 15, 2029

July 15, 2030

February 15, 2031

July 15, 2032

CONTRACTUAL 
INTEREST RATE
37/8%
47/8%
51/4%
5%
47
/8%
51
/4%
41/2%
55/8%

INTEREST PAYMENTS DUE

PAR CALL DATE(1)

May 15 and November 15

November 15, 2022

March 15 and September 15 September 15, 2025

March 15 and September 15

March 15, 2025

January 15 and July 15

July 15, 2025

March 15 and September 15 September 15, 2027

January 15 and July 15

July 15, 2028

February 15 and August 15

February 15, 2029

January 15 and July 15

July 15, 2029

(1) We may redeem the notes at any time, at our option, in whole or in part. Prior to the par call date, we may redeem the notes at the redemption price or make-whole 

premium specified in the applicable indenture, together with accrued and unpaid interest to, but excluding, the redemption date. On or after the par call date, we may 
redeem the notes at a price equal to 100% of the principal amount being redeemed, together with accrued and unpaid interest to, but excluding, the redemption date.

Each of the indentures for the notes provides that we must repurchase, at the option of the holders, the notes at 101% of their 
principal amount, plus accrued and unpaid interest, upon the occurrence of a “Change of Control,” which is defined in each 
respective indenture. Except for required repurchases upon the occurrence of a Change of Control or in the event of certain asset 
sales, each as described in the respective indenture, we are not required to make sinking fund or redemption payments with 
respect to any of the notes.

JUNE 2020 OFFERINGS
On June 22, 2020, IMI completed private offerings of the following series of notes in the amounts set forth below (collectively, the 
"June 2020 Offerings"):

SERIES OF NOTES

5% Notes
51/4% Notes due 2030
55/8% Notes

AGGREGATE 
PRINCIPAL AMOUNT

$ 

500,000 

1,300,000 

600,000 

The 5% Notes, the 51/4% Notes due 2030 and the 55/8% Notes were issued at 100.000% of par. The total net proceeds of 
approximately $2,376,000 from the June 2020 Offerings, after deducting the initial purchasers’ commissions, were used to redeem 
all of the 43/8% Notes, the 6% Notes and the 53/4% Notes and to repay a portion of the outstanding borrowings under the Revolving 
Credit Facility.

On June 29, 2020, we redeemed all of the $500,000 in aggregate principal outstanding of the 43/8% Notes at 100.000% of par and 
all of the $600,000 in aggregate principal outstanding of the 6% Notes at 102.000% of par, plus, in each case, accrued and unpaid 
interest to, but excluding, the redemption date. We recorded a charge of $17,040 to Other expense (income), net during the second 
quarter of 2020 related to the early extinguishment of this debt, representing the call premium associated with the early redemption 
of the 6% Notes, as well as a write-off of unamortized deferred financing costs associated with the early redemption of the 43/8% 
Notes and the 6% Notes. 

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IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

6. DEBT (CONTINUED)

On July 2, 2020, we redeemed all of the $1,000,000 in aggregate principal outstanding of the 53/4% Notes at 100.958% of par, plus 
accrued and unpaid interest to, but excluding, the redemption date. We recorded a charge of $15,310 to Other expense (income), 
net during the third quarter of 2020 related to the early extinguishment of this debt, representing the call premium and write-off of 
unamortized deferred financing fees.

AUGUST 2020 OFFERING
On August 18, 2020, IMI completed a private offering of:

SERIES OF NOTES
41/2% Notes

AGGREGATE 
PRINCIPAL AMOUNT

$ 

1,100,000 

The 41/2% Notes were issued at 100.000% of par. The total net proceeds of approximately $1,089,000 from the issuance of the 
41/2% Notes, after deducting the initial purchasers’ commissions, were used to redeem all of the CAD Notes, the Euro Notes, and 
the 53/8% Notes and to repay a portion of the outstanding borrowings under the Revolving Credit Facility. 

On August 21, 2020, we redeemed all of the 250,000 CAD in aggregate principal outstanding of the CAD Notes at 104.031% of 
par, 300,000 Euro in aggregate principal outstanding of the Euro Notes at 101.500% of par and $250,000 in aggregate principal 
outstanding of the 53/8% Notes at 106.628% of par, plus, in each case accrued and unpaid interest to, but excluding, the 
redemption date. We recorded a charge of $35,950 to Other expense (income), net during the third quarter of 2020 related to the 
early extinguishment of the CAD Notes, the Euro Notes and the 53/8% Notes, representing the call premiums and write off 
unamortized deferred financing costs associated with the early redemption of these debt instruments.

C. AUSTRALIAN DOLLAR TERM LOAN

Iron Mountain Australia Group Pty, Ltd. (“IM Australia”), a wholly owned subsidiary of IMI, has an AUD term loan with an original 
principal balance of 350,000 Australian dollars (“AUD Term Loan”). All indebtedness associated with the AUD Term Loan was 
issued at 99% of par. Principal payments on the AUD Term Loan are to be paid in quarterly installments in an aggregate amount of 
8,750 Australian dollars per year. The AUD Term Loan bears interest at BBSY (an Australian benchmark variable interest rate) plus 
3.875%. The AUD Term Loan is scheduled to mature on September 22, 2022, at which point all obligations become due. 

As of December 31, 2020, we had 316,563 Australian dollars ($244,014 based upon the 
exchange rate between the United States dollar and the Australian dollar as of 
December 31, 2020) outstanding on the AUD Term Loan. As of December 31, 2019, we 
had 325,313 Australian dollars ($228,156 based upon the exchange rate between the 
United States dollar and the Australian dollar as of December 31, 2019) outstanding on 
the AUD Term Loan. The interest rate in effect under the AUD Term Loan was 3.9% and 
4.8% as of December 31, 2020 and 2019, respectively.

OUTSTANDING BORROWINGS
AU$244,014

3.9%
Interest Rate
As of December 31, 2020

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IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

6. DEBT (CONTINUED)

D. UK BILATERAL REVOLVING CREDIT FACILITY

IM UK and Iron Mountain (UK) Data Centre Limited has a 140,000 British pounds 
sterling Revolving Credit Facility (the “UK Bilateral Facility”) with Barclays Bank PLC. 
The maximum amount permitted to be borrowed under the UK Bilateral Facility is 
140,000 British pounds sterling, and we have the option to request additional 
commitments of up to 125,000 British pounds sterling, subject to the conditions 
specified in the UK Bilateral Facility. The UK Bilateral Facility is fully drawn. The UK 
Bilateral Facility is secured by certain properties in the United Kingdom. IMI and the 
Guarantors guarantee all obligations under the UK Bilateral Facility. The UK Bilateral 
Facility is scheduled to mature on September 23, 2022, at which point all obligations 
become due. The UK Bilateral Facility contains an option to extend the maturity date for 
an additional year, subject to the conditions specified in the UK Bilateral Facility, 
including the lender’s consent. The UK Bilateral Facility bears interest at a rate of 
LIBOR plus 2.25%. The interest rate in effect under the UK Bilateral Facility was 2.3% 
and 3.1% as of December 31, 2020 and 2019, respectively. 

E. ACCOUNTS RECEIVABLE SECURITIZATION PROGRAM 

MAXIMUM AMOUNT
£140,000
OPTIONAL ADDITIONAL 
COMMITMENTS
£125,000

2.3%
Interest Rate
As of December 31, 2020

We participate in an accounts receivable securitization program (the “Accounts Receivable Securitization Program”) involving 
several of our wholly owned subsidiaries and certain financial institutions. Under the Accounts Receivable Securitization Program, 
certain of our subsidiaries sell substantially all of their United States accounts receivable balances to our wholly owned special 
purpose entities, Iron Mountain Receivables QRS, LLC and Iron Mountain Receivables TRS, LLC (the “Accounts Receivable 
Securitization Special Purpose Subsidiaries”). The Accounts Receivable Securitization Special Purpose Subsidiaries use the 
accounts receivable balances to collateralize loans obtained from certain financial institutions. The Accounts Receivable 
Securitization Special Purpose Subsidiaries are consolidated subsidiaries of IMI. The Accounts Receivable Securitization Program 
is accounted for as a collateralized financing activity, rather than a sale of assets, and therefore: (i) accounts receivable balances 
pledged as collateral are presented as assets and borrowings are presented as liabilities on our Consolidated Balance Sheets, (ii) 
our Consolidated Statements of Operations reflect the associated charges for bad debt expense related to pledged accounts 
receivable (a component of selling, general and administrative expenses) and reductions to revenue due to billing and service 
related credit memos issued to customers and related reserves, as well as interest expense associated with the collateralized 
borrowings and (iii) receipts from customers related to the underlying accounts receivable are reflected as operating cash flows and 
borrowings and repayments under the collateralized loans are reflected as financing cash flows within our Consolidated Statements 
of Cash Flows. IMIM retains the responsibility of servicing the accounts receivable balances pledged as collateral for the Accounts 
Receivable Securitization Program and IMI provides a performance guaranty. The maximum availability allowed is limited by 
eligible accounts receivable, as defined under the terms of the Accounts Receivable Securitization Program. 

On March 31, 2020, we amended the Accounts Receivable Securitization Program to (i) 
increase the maximum amount available from $275,000 to $300,000 and (ii) extend the 
maturity date from July 30, 2020 to July 30, 2021, at which point all obligations become 
due. The full amount outstanding under the Accounts Receivable Securitization 
Program is classified within the current portion of long-term debt in our Consolidated 
Balance Sheet as of December 31, 2020 and 2019. As of December 31, 2020, the 
maximum availability allowed and amount outstanding under the Accounts Receivable 
Securitization Program was $274,100 and $85,000, respectively. At December 31, 
2019, both the maximum availability and amount outstanding under the Accounts 
Receivable Securitization Program was $272,062. The interest rate in effect under the 
Accounts Receivable Securitization Program was 1.1% and 2.8% as of December 31, 
2020 and 2019, respectively. Commitment fees at a rate of 40 basis points are charged 
on amounts made available but not borrowed under the Accounts Receivable 
Securitization Program.

MAXIMUM AMOUNT
$300,000

MAXIMUM AVAILABILITY 
ALLOWED
$274,100
OUTSTANDING BORROWINGS
$85,000
1.1%
Interest rate
As of December 31, 2020

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Part IV

IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

6. DEBT (CONTINUED)

F. CASH POOLING

Certain of our subsidiaries participate in cash pooling arrangements (the “Cash Pools”) with Bank Mendes Gans (“BMG”), an 
independently operated wholly owned subsidiary of ING Group, in order to help manage global liquidity requirements. Under the 
Cash Pools, cash deposited by participating subsidiaries with BMG is pledged as security against the debit balances of other 
participating subsidiaries, and legal rights of offset are provided and, therefore, amounts are presented in our Consolidated 
Balance Sheets on a net basis. Each subsidiary receives interest on the cash balances held on deposit or pays interest on its debit 
balances based on an applicable rate as defined in the Cash Pools.

We currently utilize two separate Cash Pools with BMG, one of which we utilize to manage global liquidity requirements for our 
qualified REIT subsidiaries (the “QRS Cash Pool”) and the other for our taxable REIT subsidiaries (the “TRS Cash Pool”). We have 
executed overdraft facility agreements for the QRS Cash Pool and TRS Cash Pool, each in an amount not to exceed $10,000. 
Each overdraft facility permits us to cover a temporary net debit position in the applicable pool. 

The approximate amount of the net cash position, gross position and outstanding debit balances for the QRS Cash Pool and TRS 
Cash Pool as of December 31, 2020 and 2019 were as follows:

DECEMBER 31, 2020

DECEMBER 31, 2019

GROSS CASH 
POSITION

OUTSTANDING 
DEBIT BALANCES

NET CASH 
POSITION

GROSS CASH 
POSITION

OUTSTANDING 
DEBIT BALANCES

NET CASH 
POSITION

QRS Cash Pool

TRS Cash Pool

$ 

448,700  $ 

(447,400)  $ 

1,300  $ 

372,100  $ 

(369,000)  $ 

555,500 

(553,500) 

2,000 

319,800 

(301,300) 

3,100 

18,500 

The net cash position balances as of December 31, 2020 and 2019 are reflected as Cash and cash equivalents in our 
Consolidated Balance Sheets. 

G. LETTERS OF CREDIT

As of December 31, 2020, we had outstanding letters of credit totaling $36,160, of which $3,232 reduce our borrowing capacity 
under the Revolving Credit Facility (as described above). The letters of credit expire at various dates between January 2021 and 
January 2033.

H. DEBT COVENANTS

The Credit Agreement, our bond indentures and other agreements governing our indebtedness contain certain restrictive financial 
and operating covenants, including covenants that restrict our ability to complete acquisitions, pay cash dividends, incur 
indebtedness, make investments, sell assets and take certain other corporate actions. The covenants do not contain a rating 
trigger. Therefore, a change in our debt rating would not trigger a default under the Credit Agreement, our bond indentures or other 
agreements governing our indebtedness. The Credit Agreement requires that we satisfy a fixed charge coverage ratio, a net total 
lease adjusted leverage ratio and a net secured debt lease adjusted leverage ratio on a quarterly basis and our bond indentures 
require that, among other things, we satisfy a leverage ratio (not lease adjusted) or a fixed charge coverage ratio (not lease 
adjusted), as a condition to taking actions such as paying dividends and incurring indebtedness. 

The Credit Agreement uses EBITDAR-based calculations and the bond indentures use EBITDA-based calculations as the primary 
measures of financial performance for purposes of calculating leverage and fixed charge coverage ratios. The bond indenture 
EBITDA-based calculations include our consolidated subsidiaries, other than those we have designated as “Unrestricted 
Subsidiaries” as defined in the bond indentures. Generally, the Credit Agreement and the bond indentures use a trailing four fiscal 
quarter basis for purposes of the relevant calculations and require certain adjustments and exclusions for purposes of those 
calculations, which make the calculation of financial performance for purposes of those calculations under the Credit Agreement 
and bond indentures not directly comparable to Adjusted EBITDA as presented herein. We are in compliance with our leverage and 
fixed charge coverage ratios under the Credit Agreement, our bond indentures and other agreements governing our indebtedness 
as of December 31, 2020 and 2019. Noncompliance with these leverage and fixed charge coverage ratios would have a material 
adverse effect on our financial condition.

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IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

6. DEBT (CONTINUED)

I. MATURITIES OF LONG-TERM DEBT (GROSS OF DISCOUNTS) ARE AS FOLLOWS:

YEAR

2021

2022

2023

2024

2025

Thereafter

Net Discounts

Net Deferred Financing Costs 

Total Long-term Debt (including current portion)

7. COMMITMENTS AND CONTINGENCIES

A. PURCHASE COMMITMENTS

$ 

AMOUNT

193,759 

536,811 

232,264 

45,680 

569,005 

7,221,896 

8,799,415 

(1,991) 

(94,110) 

$ 

8,703,314 

We have certain contractual obligations related to purchase commitments which require minimum payments as follows:

YEAR

2021

2022

2023

2024

2025

Thereafter

PURCHASE 
COMMITMENTS(1)

$ 

189,855 

45,339 

31,507 

28,269 

25,554 

322 

$ 

320,846 

(1) Purchase commitments (i) include obligations for future construction costs associated with the expansion of our Global Data Center Business, which represent a 

significant amount of the purchase commitments due in 2021 and (ii) exclude our operating and financing lease obligations (see Note 2.i.).

B. SELF-INSURED LIABILITIES

We are self-insured up to certain limits for costs associated with workers’ compensation claims, vehicle accidents, property and 
general business liabilities, and benefits paid under employee healthcare and short-term disability programs. At December 31, 
2020 and 2019, there were $47,959 and $43,127, respectively, of self-insurance accruals reflected in Accrued expenses on our 
Consolidated Balance Sheets. The measurement of these costs requires the consideration of historical cost experience and 
judgments about the present and expected levels of cost per claim. We account for these costs primarily through actuarial 
methods, which develop estimates of the undiscounted liability for claims incurred, including those claims incurred but not reported. 
These methods provide estimates of future claim costs based on claims incurred as of the balance sheet date.

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IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

7. COMMITMENTS AND CONTINGENCIES (CONTINUED)

C. LITIGATION—GENERAL

We are involved in litigation from time to time in the ordinary course of business, including litigation arising from damage to 
customer assets in our facilities caused by fires and other natural disasters. A portion of the defense and/or settlement costs 
associated with such litigation is covered by various commercial liability insurance policies purchased by us and, in limited cases, 
indemnification from third parties. Our policy is to establish reserves for loss contingencies when the losses are both probable and 
reasonably estimable. We record legal costs associated with loss contingencies as expenses in the period in which they are 
incurred. While the outcome of litigation is inherently uncertain, we do not believe any current litigation will have a material adverse 
effect on our consolidated financial condition, results of operations or cash flows.

8. STOCKHOLDERS’ EQUITY MATTERS

Our board of directors has adopted a dividend policy under which we have paid, and in the future intend to pay, quarterly cash 
dividends on our common stock. The amount and timing of future dividends will continue to be subject to the approval of our board 
of directors, in its sole discretion, and to applicable legal requirements.

In 2018, 2019 and 2020, our board of directors declared the following dividends:

DECLARATION DATE

February 14, 2018

May 24, 2018

July 24, 2018

October 25, 2018

February 7, 2019

May 22, 2019

July 26, 2019

October 31, 2019

February 13, 2020

May 5, 2020

August 5, 2020

November 4, 2020

DIVIDEND
PER SHARE

RECORD DATE

TOTAL AMOUNT PAYMENT DATE

$ 

0.5875 

0.5875 

March 15, 2018

$ 

June 15, 2018

167,969 

168,078 

April 2, 2018

July 2, 2018

0.5875  September 17, 2018

168,148 

October 2, 2018

0.6110  December 17, 2018

174,935 

January 3, 2019

0.6110 

0.6110 

March 15, 2019

June 17, 2019

175,242 

175,389 

April 2, 2019

July 2, 2019

0.6110  September 16, 2019

175,434 

October 2, 2019

0.6185  December 16, 2019

177,687 

January 2, 2020

0.6185 

0.6185 

March 16, 2020

June 15, 2020

178,047 

178,212 

April 6, 2020

July 2, 2020

0.6185  September 15, 2020

178,224 

October 2, 2020

0.6185  December 15, 2020

178,290 

January 6, 2021

On February 24, 2021, we declared a dividend to our stockholders of record as of March 15, 2021 of $0.6185 per share, payable 
on April 6, 2021.

During the years ended December 31, 2020, 2019 and 2018, we declared dividends in an aggregate and per share amount, based 
on the weighted average number of common shares outstanding during each respective year, as follows:

Declared distributions

$ 

712,773  $ 

703,752  $ 

679,130 

Amount per share each distribution represents based on weighted average number 
of common shares outstanding

2.47 

2.45 

2.38 

YEAR ENDED DECEMBER 31,

2020

2019

2018

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IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

8. STOCKHOLDERS’ EQUITY MATTERS (CONTINUED)

For federal income tax purposes, distributions to our stockholders are generally treated as nonqualified ordinary dividends 
(potentially eligible for the lower effective tax rates available for “qualified REIT dividends”), qualified ordinary dividends or return of 
capital. The United States Internal Revenue Service requires historical C corporation earnings and profits to be distributed prior to 
any REIT distributions, which may affect the character of each distribution to our stockholders, including whether and to what extent 
each distribution is characterized as a qualified or nonqualified ordinary dividend. In addition, certain of our distributions qualify as 
capital gain distributions. For the years ended December 31, 2020, 2019, and 2018, the dividends we paid on our common shares 
were classified as follows:

Nonqualified ordinary dividends

Qualified ordinary dividends

Capital gains

Return of capital

YEAR ENDED DECEMBER 31,

2020

2019

2018

 43.0 %

 — %

 49.5 %

 7.5 %

 54.8 %

 4.5 %

 14.7 %

 26.0 %

 83.0 %

 4.8 %

 5.8 %

 6.4 %

 100.0 %

 100.0 %

 100.0 %

Dividends paid during the years ended December 31, 2020, 2019, and 2018 which were classified as qualified ordinary dividends 
for federal income tax purposes primarily related to the distribution of historical C corporation earnings and profits related to certain 
acquisitions completed during the years ended December 31, 2020, 2019, and 2018. In 2020, the percentage of our dividend that 
was classified as a capital gain was 49.5% and primarily related to the sale of land and buildings in the United States. In 2019, the 
percentage of our dividend that was classified as a capital gain was 14.7% and primarily related to the sale of land and buildings in 
the United States and United Kingdom. In 2018, the percentage of our dividend that was classified as a capital gain was 5.8% and 
primarily related to the sale of land and buildings in the United Kingdom.

EQUITY OFFERING
In December 2017, we entered into an underwriting agreement (the “Underwriting Agreement”) with a syndicate of 16 banks (the 
“Underwriters”) related to the public offering by us of 14,500,000 shares of our common stock. In January 2018, the Underwriters, 
pursuant to the Underwriting Agreement, exercised an option to purchase an additional 2,175,000 shares of common stock, which 
after deducting underwriters’ commissions and the per share value of the dividend we declared on our common stock on October 
24, 2017, resulted in net proceeds of approximately $76,200.

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Part IV

IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

9. INCOME TAXES

We have been organized and have operated as a REIT effective beginning with our taxable year that ended on December 31, 
2014. As a REIT, we are generally permitted to deduct from our federal taxable income the dividends we pay to our stockholders. 
The income represented by such dividends is not subject to federal taxation at the entity level but is taxed, if at all, at the 
stockholder level. The income of our domestic taxable REIT subsidiaries (“TRSs”), which hold our domestic operations that may not 
be REIT-compliant as currently operated and structured, is subject, as applicable, to federal and state corporate income tax. In 
addition, we and our subsidiaries continue to be subject to foreign income taxes in other jurisdictions in which we have business 
operations or a taxable presence, regardless of whether assets are held or operations are conducted through subsidiaries 
disregarded for federal income tax purposes or TRSs. We will also be subject to a separate corporate income tax on any gains 
recognized on the sale or disposition of any asset previously owned by a C corporation during a five-year period after the date we 
first owned the asset as a REIT asset that are attributable to “built-in gains” with respect to that asset on that date. We will also be 
subject to a built-in gains tax on our depreciation recapture recognized into income as a result of accounting method changes in 
connection with our acquisition activities. If we fail to remain qualified for taxation as a REIT, we will be subject to federal income 
tax at regular corporate income tax rates. Even if we remain qualified for taxation as a REIT, we may be subject to some federal, 
state, local and foreign taxes on our income and property in addition to taxes owed with respect to our TRS operations. In 
particular, while state income tax regimes often parallel the federal income tax regime for REITs, many states do not completely 
follow federal rules and some do not follow them at all.

The significant components of our deferred tax assets and deferred tax liabilities as of December 31, 2020 and 2019 are presented 
below:

Deferred Tax Assets:

Accrued liabilities and other adjustments

Net operating loss carryforwards

Federal benefit of unrecognized tax benefits

Valuation allowance

Deferred Tax Liabilities:

Other assets, principally due to differences in amortization

Plant and equipment, principally due to differences in depreciation

Other

Net deferred tax liability

DECEMBER 31,

2020

2019

$ 

52,527  $ 

96,710 

— 

(46,938) 

102,299 

(186,682) 

(59,711) 

(29,265) 

(275,658) 

$ 

(173,359)  $ 

53,197 

99,240 

3,039 

(60,003) 

95,473 

(177,645) 

(67,515) 

(21,903) 

(267,063) 

(171,590) 

The deferred tax assets and deferred tax liabilities as of December 31, 2020 and 2019 are presented below:

Noncurrent deferred tax assets (Included in Other, a component of Other assets, net)

$ 

25,018  $ 

Deferred income taxes

(198,377) 

16,538 

(188,128) 

At December 31, 2020, we have federal and state net operating loss carryforwards of which we are expecting an insignificant tax 
benefit to be realized. We have assets for foreign net operating losses of $92,142, with various expiration dates (and in some 
cases no expiration date), subject to a valuation allowance of approximately 43%.

DECEMBER 31,

2020

2019

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IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

9. INCOME TAXES (CONTINUED)

Rollforward of the valuation allowance is as follows:

YEAR ENDED DECEMBER 31,

2020

2019

2018

BALANCE AT 
BEGINNING OF 
THE YEAR

CHARGED
(CREDITED) TO
EXPENSE

OTHER
INCREASES/
(DECREASES)(1)

BALANCE
AT END OF
THE YEAR

$ 

60,003  $ 

(8,337)  $ 

(4,728)  $ 

55,666 

61,756 

6,211 

3,568 

(1,874) 

(9,658) 

46,938 

60,003 

55,666 

(1) Other increases and decreases in valuation allowances are primarily related to changes in foreign currency exchange rates.

The components of income (loss) from continuing operations before provision (benefit) for income taxes for the years ended 
December 31, 2020, 2019 and 2018 are as follows:

United States

Canada

Other Foreign

YEAR ENDED DECEMBER 31,

2020

2019

2018

$ 

$ 

276,145  $ 

203,225  $ 

52,332 

44,228 

48,326 

76,591 

372,705  $ 

328,142  $ 

203,078 

53,779 

153,454 

410,311 

The provision (benefit) for income taxes for the years ended December 31, 2020, 2019 and 2018 consist of the following 
components:

Federal—current

Federal—deferred

State—current

State—deferred

Foreign—current

Foreign—deferred

YEAR ENDED DECEMBER 31,

2020

2019

2018

$ 

(10,424)  $ 

7,262  $ 

8,834 

2,956 

(625) 

50,063 

(21,195) 

(3,356) 

3,943 

(1,126) 

49,350 

3,858 

Provision (Benefit) for Income Taxes

$ 

29,609  $ 

59,931  $ 

703 

(4,162) 

918 

627 

45,371 

(704) 

42,753 

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IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

9. INCOME TAXES (CONTINUED)

A reconciliation of total income tax expense and the amount computed by applying the current federal statutory tax rate of 21.0% to 
income (loss) from continuing operations before provision (benefit) for income taxes for the years ended December 31, 2020, 2019 
and 2018, respectively, is as follows:

Computed "expected” tax provision

Changes in income taxes resulting from:

Tax adjustment relating to REIT

State taxes (net of federal tax benefit)

(Decrease) increase in valuation allowance (net operating losses)

(Reversal) reserve accrual and audit settlements (net of federal tax benefit)

Foreign tax rate differential

Disallowed foreign interest, Subpart F income, and other foreign taxes

Other, net

Provision (Benefit) for Income Taxes

YEAR ENDED DECEMBER 31,

2020

2019

2018

$ 

78,268  $ 

68,910  $ 

86,165 

(60,378) 

2,258 

(8,337) 

(7,409) 

9,472 

20,242 

(4,507) 

(40,577) 

2,115 

6,211 

514 

8,562 

14,241 

(45) 

$ 

29,609  $ 

59,931  $ 

(35,165) 

1,599 

3,568 

(13,985) 

1,031 

903 

(1,363) 

42,753 

Our effective tax rates for the years ended December 31, 2020, 2019 and 2018 were 7.9%, 18.3% and 10.4%, respectively. Our 
effective tax rate is subject to variability in the future due to, among other items: (1) changes in the mix of income between our 
qualified REIT subsidiaries (“QRSs”) and our TRSs, as well as among the jurisdictions in which we operate; (2) tax law changes; 
(3) volatility in foreign exchange gains and losses; (4) the timing of the establishment and reversal of tax reserves; and (5) our 
ability to utilize net operating losses that we generate.

The primary reconciling items between the federal statutory tax rate of 21.0% and our overall effective tax rate were:

YEAR ENDED DECEMBER 31,

2020
The benefit derived from the dividends paid 
deduction of $60,378 and the impact of 
differences in the tax rates at which our 
foreign earnings are subject to, resulting in a 
tax provision of $9,472.

2019
The benefit derived from the dividends paid 
deduction of $40,577 and the impact of 
differences in the tax rates at which our 
foreign earnings are subject to, resulting in a 
tax provision of $8,562.

2018
The benefit derived from the dividends paid 
deduction of $35,165, the impact of 
differences in the tax rates at which our 
foreign earnings are subject to, resulting in a 
tax provision of $1,031 and a discrete tax 
benefit of approximately $14,000 associated 
with the resolution of a tax matter (which was 
included as a component of Accrued 
expenses in our Consolidated Balance Sheet 
as of December 31, 2017).

As a REIT, we are entitled to a deduction for dividends paid, resulting in a substantial reduction of federal income tax expense. As a 
REIT, substantially all of our income tax expense will be incurred based on the earnings generated by our foreign subsidiaries and 
our domestic TRSs. 

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Part IV

IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

9. INCOME TAXES (CONTINUED)

Following our conversion to a REIT in 2014, we concluded that it was not our intent to reinvest our current and future undistributed 
earnings of our foreign subsidiaries indefinitely outside the United States. As of December 31, 2016, we concluded that it is our 
intent to indefinitely reinvest our current and future undistributed earnings of certain of our unconverted foreign TRSs outside the 
United States. With the exception of certain limited instances, we no longer provide incremental foreign withholding taxes on the 
retained book earnings of these unconverted foreign TRSs, which was approximately $262,379 as of December 31, 2020. As a 
REIT, future repatriation of incremental undistributed earnings of our foreign subsidiaries will not be subject to federal or state 
income tax, with the exception of foreign withholding taxes in limited instances; however, such future repatriations will require 
distribution in accordance with REIT distribution rules, and any such distribution may then be taxable, as appropriate, at the 
stockholder level. We continue, however, to provide for incremental foreign withholding taxes on net book over outside basis 
differences related to the earnings of our foreign QRSs and certain other foreign TRSs (excluding unconverted foreign TRSs).

The evaluation of an uncertain tax position is a two-step process. The first step is a recognition process whereby we determine 
whether it is more likely than not that a tax position will be sustained upon examination, including resolution of any related appeals 
or litigation processes, based on the technical merits of the position. The second step is a measurement process whereby a tax 
position that meets the more likely than not recognition threshold is calculated to determine the amount of benefit to recognize in 
the financial statements. The tax position is measured as the largest amount of benefit that is greater than 50% likely of being 
realized upon ultimate settlement.

We have elected to recognize interest and penalties associated with uncertain tax positions as a component of the provision 
(benefit) for income taxes in the accompanying Consolidated Statements of Operations. We recorded a decrease of $1,499 for 
gross interest and penalties for the year ended December 31, 2020. We recorded an increase of $1,780 and $1,961 for gross 
interest and penalties for the years ended December 31, 2019 and 2018, respectively. We had $6,212 and $9,282 accrued for the 
payment of interest and penalties as of December 31, 2020 and 2019, respectively.

A summary of tax years that remain subject to examination by major tax jurisdictions is as follows:

TAX YEARS

See Below

2017 to present

2014 to present

TAX JURISDICTION

United States—Federal and State

United Kingdom

Canada

The normal statute of limitations for United States federal tax purposes is three years from the date the tax return is filed; however, 
the statute of limitations may remain open for periods longer than three years in instances where a federal tax examination is in 
progress. The 2019, 2018 and 2017 tax years remain subject to examination for United States federal tax purposes as well as net 
operating loss carryforwards utilized in these years. We utilized net operating losses from 2002 through 2003 and 2010 through 
2015 in our federal income tax returns for these tax years. The normal statute of limitations for state purposes is between three to 
five years. However, certain of our state statute of limitations remain open for periods longer than this when audits are in progress.

We are subject to income taxes in the United States and numerous foreign jurisdictions. We are subject to examination by various 
tax authorities in jurisdictions in which we have business operations or a taxable presence. We regularly assess the likelihood of 
additional assessments by tax authorities and provide for these matters as appropriate. As of December 31, 2020, we had $25,969 
of reserves related to uncertain tax positions, of which $23,402 and $2,567 is included in other long-term liabilities and deferred 
income taxes, respectively, in the accompanying Consolidated Balance Sheet. As of December 31, 2019, we had $35,068 of 
reserves related to uncertain tax positions, of which $31,992 and $3,076 is included in other long-term liabilities and deferred 
income taxes, respectively, in the accompanying Consolidated Balance Sheet. Although we believe our tax estimates are 
appropriate, the final determination of tax audits and any related litigation could result in changes in our estimates.

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Part IV

IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

9. INCOME TAXES (CONTINUED)

A rollforward of unrecognized tax benefits is as follows:

Gross tax contingencies—December 31, 2017

Gross additions based on tax positions related to the current year

Gross additions for tax positions of prior years

Gross reductions for tax positions of prior years

Lapses of statutes

Settlements
Gross tax contingencies—December 31, 2018

Gross additions based on tax positions related to the current year

Gross additions for tax positions of prior years

Gross reductions for tax positions of prior years

Lapses of statutes

Settlements

Gross tax contingencies—December 31, 2019

Gross additions based on tax positions related to the current year

Gross additions for tax positions of prior years

Gross reductions for tax positions of prior years

Lapses of statutes

Settlements

Gross tax contingencies—December 31, 2020

$ 

$ 

38,533 

3,147 

981 

(2,865) 

(4,462) 

(14) 
35,320 

2,914 

1,271 

(299) 

(4,034) 

(104) 

35,068 

2,907 

80 

(5,617) 

(4,480) 

(1,989) 

25,969 

The reversal of these reserves of $25,969 as of December 31, 2020 will be recorded as a reduction of our income tax provision, if 
sustained. We believe that it is reasonably possible that an amount up to approximately $2,989 of our unrecognized tax positions 
may be recognized by the end of 2021 as a result of a lapse of statute of limitations or upon closing and settling significant audits in 
various worldwide jurisdictions. 

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Part IV

IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

10. SEGMENT INFORMATION

As of December 31, 2020, our three reportable operating segments are described as follows:

(1) Global Records and Information Management (“Global RIM”) Business includes five distinct offerings:

(i) Records Management, which stores physical records and provides healthcare information services, vital records services, 
courier operations, and the collection, handling and disposal of sensitive documents (collectively, “Records Management”) 
for customers in 56 countries around the globe. 

(ii) Data Management, which provides storage and rotation of backup computer media as part of corporate disaster recovery 
plans, including service and courier operations (“Data Protection & Recovery”); server and computer backup services; and 
related services offerings, (collectively, “Data Management”).

(iii) Global Digital Solutions, which develops, implements and supports comprehensive storage and information management 

solutions for the complete lifecycle of our customers’ information, including the management of physical records, 
conversion of documents to digital formats and digital storage of information, primarily in the United States and Canada. 

(iv) Secure Shredding, which includes the scheduled pick-up of office records that customers accumulate in specially 

designed secure containers we provide and is a natural extension of our hardcopy records management operations, 
completing the lifecycle of a record. Complementary to our shredding operations is the sale of the resultant waste paper to 
third-party recyclers. Through a combination of shredding facilities and mobile shredding units consisting of custom built 
trucks, we are able to offer secure shredding services to our customers throughout the United States, Canada and South 
Africa.

(v) Consumer Storage, which provides on-demand, valet storage for consumers (“Consumer Storage”) across 31 markets in 
North America through the MakeSpace JV. The MakeSpace JV utilizes data analytics and machine learning to provide 
effective customer acquisition and a convenient and seamless consumer storage experience.

(2) Global Data Center Business, which provides enterprise-class data center facilities and hyperscale-ready capacity to protect 

mission-critical assets and ensure the continued operation of our customers’ IT infrastructure, with secure, reliable and flexible 
data center options. As of December 31, 2020, our Global Data Center Business footprint spans nine markets in the United 
States and four international markets.

UNITED STATES

Denver, Colorado

Kansas City, Missouri

Boston, Massachusetts

Boyers, Pennsylvania

Manassas, Virginia

Edison, New Jersey

Columbus, Ohio

Phoenix and Scottsdale, Arizona

INTERNATIONAL MARKETS

Amsterdam

London

Singapore

Frankfurt (through an unconsolidated joint venture)

(3) Corporate and Other Business, which consists primarily of Adjacent Businesses and other corporate items. Our Adjacent 

Businesses is comprised of:

(i) entertainment and media which helps industry clients store, safeguard and deliver physical media of all types, and 

provides digital content repository systems that house, distribute, and archive key media assets, throughout the United 
States, Canada, France, China - Hong Kong S.A.R., the Netherlands and the United Kingdom (“Entertainment Services”) 
and 

(ii)

technical expertise in the handling, installation and storing of art in the United States, Canada and Europe (“Fine Arts”). 

Our Corporate and Other Business segment also includes costs related to executive and staff functions, including finance, human 
resources and IT, which benefit the enterprise as a whole.

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Part IV

IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

10. SEGMENT INFORMATION (CONTINUED)

An analysis of our business segment information and reconciliation to the accompanying Consolidated Financial Statements is as 
follows: 

GLOBAL RIM 
BUSINESS

GLOBAL 
DATA CENTER 
BUSINESS

CORPORATE 
AND OTHER 
BUSINESS

TOTAL
CONSOLIDATED

As of and for the Year Ended December 31, 2020
Total Revenues

$ 

3,699,280  $ 

279,312  $ 

168,678  $ 

Storage Rental

Service

Depreciation and Amortization

Depreciation

Amortization

Adjusted EBITDA
Total Assets(1)
Expenditures for Segment Assets

Capital Expenditures

Cash Paid for Acquisitions, Net of Cash Acquired

Acquisitions of Customer Relationships, Customer Inducements 
and Contract Fulfillment Costs 

As of and for the Year Ended December 31, 2019

Total Revenues

Storage Rental

Service

Depreciation and Amortization

Depreciation

Amortization

Adjusted EBITDA
Total Assets(1)
Expenditures for Segment Assets

Capital Expenditures

Cash Paid for Acquisitions, Net of Cash Acquired

Acquisitions of Customer Relationships, Customer Inducements, 
Contract Fulfillment Costs and third-party commissions

As of and for the Year Ended December 31, 2018

Total Revenues

Storage Rental

Service

Depreciation and Amortization

Depreciation

Amortization
Adjusted EBITDA
Total Assets(1)
Expenditures for Segment Assets

Capital Expenditures

Cash Paid for Acquisitions, Net of Cash Acquired

Acquisitions of Customer Relationships, Customer Inducements 
and Contract Fulfillment Costs

2,373,783 

1,325,497 

455,567 

309,969 

145,598 

1,574,069 

10,938,359 

338,006 

150,175 

118,581 

69,250 

263,695 

15,617 

134,844 

83,106 

51,738 

126,576 

2,727,654 

249,459 

243,699 

— 

5,760 

116,613 

52,065 

61,658 

54,487 

7,171 

(224,924) 

483,254 

44,389 

44,389 

— 

— 

$ 

3,812,433  $ 

257,151  $ 

193,000  $ 

2,320,076 

1,492,357 

454,652 

330,534 

124,118 

1,566,065 

10,753,218 

398,690 
248,232 

54,717 

246,925 

10,226 

133,927 

78,939 

54,988 

121,517 

2,535,848 

427,935 
392,029 

— 

114,086 

78,914 

69,622 

46,850 

22,772 

(218,573) 

527,750 

56,242 
52,722 

3,520 

4,147,270 

2,754,091 

1,393,179 

652,069 

447,562 

204,507 

1,475,721 

14,149,267 

631,854 

438,263 

118,581 

75,010 

4,262,584 

2,681,087 

1,581,497 

658,201 

456,323 

201,878 

1,469,009 

13,816,816 

882,867 
692,983 

58,237 

95,741 

35,906 

— 

131,647 

$ 

3,842,600  $ 

228,983  $ 

154,178  $ 

2,301,344 

1,541,256 

472,155 

341,384 

130,771 
1,572,438 
9,135,198 

443,634 

254,308 

93,217 

218,675 

10,308 

105,680 

58,707 

46,973 
99,575 
2,217,505 

1,794,386 

152,739 

1,639,427 

102,436 

51,742 

61,679 

52,649 

9,030 
(213,089) 
504,515 

79,286 

53,015 

25,913 

4,225,761 

2,622,455 

1,603,306 

639,514 

452,740 

186,774 
1,458,924 
11,857,218 

2,317,306 

460,062 

1,758,557 

96,109 

2,220 

358 

98,687 

(1) Excludes all intercompany receivables or payables and investment in subsidiary balances.

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IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

10. SEGMENT INFORMATION (CONTINUED)

The accounting policies of the reportable segments are the same as those described in Note 2. During the fourth quarter of 2020, 
we changed our definition of Adjusted EBITDA to (a) exclude stock-based compensation expense and (b) include our share of 
Adjusted EBITDA from our unconsolidated joint ventures. All prior periods have been recast to conform to these changes. We now 
define Adjusted EBITDA for each segment as income (loss) from continuing operations 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

• Significant Acquisition Costs

• Restructuring Charges

•

•

Intangible impairments

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

• Other expense (income), net

• Stock-based compensation expense

• COVID-19 Costs (as defined below)

Internally, we use Adjusted EBITDA as the basis for evaluating the performance of, and allocated resources to, our operating 
segments.

A reconciliation of Income (Loss) from Continuing Operations to Adjusted EBITDA on a consolidated basis for the years ended 
December 31, 2020, 2019 and 2018 is as follows:

Income (Loss) from Continuing Operations

$ 

343,096  $ 

268,211  $ 

367,558 

YEAR ENDED DECEMBER 31,

2020

2019

2018

Add/(Deduct):

Interest expense, net

Provision (benefit) for income taxes

Depreciation and amortization

Significant Acquisition Costs

Restructuring Charges

Intangible impairments
(Gain) loss on disposal/write-down of property, plant and equipment, net 
(including real estate)
Other expense (income), net, excluding our share of losses (gains) from our 
unconsolidated joint ventures(1)
Stock-based compensation expense(2)
COVID-19 Costs(3)
Our share of Adjusted EBITDA reconciling items from our unconsolidated joint 
ventures

418,535 

29,609 

652,069 

— 

194,396 

23,000 

419,298 

59,931 

658,201 

13,293 

48,597 

— 

409,648 

42,753 

639,514 

50,665 

— 

— 

(363,537) 

(63,824) 

(73,622) 

133,611 

34,272 

9,285 

1,385 

25,720 

36,194 

— 

3,388 

(11,867) 

31,014 

— 

3,261 

Adjusted EBITDA

$ 

1,475,721  $ 

1,469,009  $ 

1,458,924 

(1)

Includes foreign currency transaction losses (gains), net, debt extinguishment expense and other, net.

(2) Stock-based compensation expense related to Project Summit is included within Restructuring Charges for the years ended December 31, 2020 and 2019.

(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”). For the 
year ended December 31, 2020, approximately $7,600 and $1,600 of COVID-19 Costs are included within Cost of sales and Selling, general and administrative 
expenses, respectively, on our Consolidated Statement of Operations. 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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IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

10. SEGMENT INFORMATION (CONTINUED)

Information as to our operations in different geographical areas for the years ended December 31, 2020, 2019 and 2018 is as 
follows:

Revenues:

United States

United Kingdom

Canada

Australia

Remaining Countries

Long-lived Assets:

United States

United Kingdom

Canada

Australia

Remaining Countries

YEAR ENDED DECEMBER 31,

2020

2019

2018

$ 

2,577,084  $ 

2,632,586  $ 

2,579,847 

247,667 

224,860 

133,815 

963,844 

274,931 

243,033 

143,511 

968,523 

280,993 

249,505 

155,367 

960,049 

$ 

7,818,059  $ 

7,862,262  $ 

6,902,232 

838,491 

556,120 

575,862 

755,859 

556,591 

530,755 

547,768 

453,398 

442,755 

3,090,948 

2,875,010 

2,302,951 

Information as to our revenues by product and service lines by segment for the years ended December 31, 2020, 2019 and 2018 is 
as follows:

For the Year Ended December 31, 2020

Records Management(1)
Data Management(1)
Information Destruction(1)(2)

Data Center 

For the Year Ended December 31, 2019

Records Management(1)
Data Management(1)
Information Destruction(1)(2)

Data Center 

For the Year Ended December 31, 2018

Records Management(1)
Data Management(1)
Information Destruction(1)(2)

Data Center 

GLOBAL RIM 
BUSINESS

GLOBAL
 DATA CENTER 
BUSINESS

CORPORATE 
AND OTHER 
BUSINESS

TOTAL
CONSOLIDATED

$ 

2,852,296  $ 

—  $ 

102,003  $ 

2,954,299 

488,198 

358,786 

— 

— 

— 

279,312 

66,675 

— 

— 

554,873 

358,786 

279,312 

$ 

2,866,192  $ 

—  $ 

128,954  $ 

2,995,146 

520,082 

426,159 

— 

— 

— 

257,151 

64,046 

— 

— 

584,128 

426,159 

257,151 

$ 

2,871,253  $ 

—  $ 

96,669  $ 

2,967,922 

539,035 

432,312 

— 

— 

— 

228,983 

57,509 

— 

— 

596,544 

432,312 

228,983 

(1) Each of the offerings within our product and service lines has a component of revenue that is storage rental related and a component that is service revenues, except 

the destruction services offering, which does not have a storage rental component.

(2)

Includes Secure Shredding services.

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IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

11. RELATED PARTY TRANSACTIONS

In October 2020, in connection with the Frankfurt JV Transaction, we entered into agreements whereby we will earn various fees, 
including property management and construction and development fees, for services we are providing to the Frankfurt JV (the 
“Frankfurt JV Agreements”). Revenues and expenses associated with the Frankfurt JV Agreements are presented as a component 
of our Global Data Business segment. During the year ended December 31, 2020, we recognized revenue of approximately $400 
associated with the Frankfurt JV Agreements.

In March 2019, in connection with the Consumer Storage Transaction and the MakeSpace Investment, we entered into a storage 
and service agreement with the MakeSpace JV to provide certain storage and related services to the MakeSpace JV (the 
"MakeSpace Agreement”). Revenues and expenses associated with the MakeSpace Agreement are presented as a component of 
our Global RIM Business segment. During the years ended December 31, 2020 and 2019, we recognized revenue of 
approximately $33,600 and $22,500, respectively, associated with the MakeSpace Agreement.

During the years ended December 31, 2020, 2019 and 2018, the Company had no other related party transactions.

12. PROJECT SUMMIT

In October 2019, we announced Project Summit, our global program designed to better position us for future growth and 
achievement of our strategic objectives. We expanded Project Summit during the first quarter of 2020 to include additional 
opportunities to streamline our business and operations, as well as accelerated the timing of certain opportunities previously 
identified. Such opportunities include leveraging new technology solutions to enable us to modernize our service delivery model 
and more efficiently utilize our fleet, labor and real estate. 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 December 31, 2020, we have completed approximately 70% 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 estimate that the implementation of Project Summit will result in total operating expenditures ("Restructuring Charges") of 
approximately $450,000 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.

Restructuring Charges included in the accompanying Consolidated Statement of Operations for the years ended December 31, 
2020 and 2019, and from the inception of Project Summit through December 31, 2020, are as follows: 

YEAR ENDED 
DECEMBER 31, 2020

YEAR ENDED 
DECEMBER 31, 2019

FROM THE INCEPTION OF 
PROJECT SUMMIT THROUGH 
DECEMBER 31, 2020

Employee severance costs

Professional fees and other costs

Restructuring Charges

$ 

$ 

47,349  $ 

147,047 

194,396  $ 

20,850  $ 

27,747 

48,597  $ 

68,199 

174,794 

242,993 

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IRON MOUNTAIN INCORPORATED
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(CONTINUED)

DECEMBER 31, 2020
(In thousands, except share and per share data)

12. PROJECT SUMMIT (CONTINUED)

Restructuring Charges included in the accompanying Consolidated Statement of Operations by segment for the years ended 
December 31, 2020 and 2019, and from inception of Project Summit through December 31, 2020, are as follows:

YEAR ENDED 
DECEMBER 31, 2020

YEAR ENDED 
DECEMBER 31, 2019

FROM THE INCEPTION OF 
PROJECT SUMMIT THROUGH 
DECEMBER 31, 2020

Global RIM Business 

Global Data Center Business

Corporate and Other Business

Restructuring Charges

$ 

$ 

67,140  $ 

1,632 

125,624 

194,396  $ 

21,900  $ 

306 

26,391 

48,597  $ 

89,040 

1,938 

152,015 

242,993 

A rollforward of the accrued Restructuring Charges, which is included as a component of Accrued expenses and other current 
liabilities in our Consolidated Balance Sheet for the year ended December 31, 2020 is as follows:

Inception of Project Summit

Amounts accrued

Payments

Other, including currency translation adjustments

Balance as of December 31, 2019

Amounts accrued

Payments

Other, including currency translation adjustments

Balance as of December 31, 2020

EMPLOYEE 
SEVERANCE COSTS

PROFESSIONAL 
FEES AND OTHER

TOTAL ACCRUED 
RESTRUCTURING 
CHARGES

$ 

$ 

—  $ 

20,850 

(16,027)   

— 

4,823 

47,349 

(32,455)   

(3,439)   

16,278  $ 

—  $ 

27,747 

(14,793)   

— 

12,954 

147,047 

(136,222)   

(4)   

23,775  $ 

— 

48,597 

(30,820) 

— 

17,777 

194,396 

(168,677) 

(3,443) 

40,053 

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Part IV

IRON MOUNTAIN INCORPORATED
SCHEDULE III—SCHEDULE OF REAL ESTATE AND 
ACCUMULATED DEPRECIATION

DECEMBER 31, 2020
(Dollars in thousands)

Schedule III - Schedule of Real Estate and Accumulated Depreciation (“Schedule III”) reflects the cost and associated accumulated 
depreciation for the real estate facilities that are owned. The gross cost included in Schedule III includes the cost for land, land 
improvements, buildings, building improvements and racking. Schedule III does not reflect the 1,167 leased facilities in our real 
estate portfolio. In addition, Schedule III does not include any value for financing leases for property that is classified as land, 
buildings and building improvements in our consolidated financial statements.

The following table presents a reconciliation of the gross amount of real estate assets, as presented in Schedule III below, to the 
sum of the historical book value of land, buildings and building improvements, racking and construction in progress as disclosed in 
Note 2.h. to Notes to Consolidated Financial Statements as of December 31, 2020:

Gross Amount of Real Estate Assets, As Reported on Schedule III

Add Reconciling Items:

Book value of racking included in leased facilities(1)

Book value of financing leases(2)

Book value of construction in progress(3)

     Total Reconciling Items

Gross Amount of Real Estate Assets, As Disclosed in Note 2.h.

$ 

3,830,489 

1,448,654 

410,583 

287,580 

2,146,817 

$ 

5,977,306 

(1) Represents the gross book value of racking installed in our 1,167 leased facilities, which is included in historical book value of racking in Note 2.h., but excluded from 

Schedule III.

(2) Represents the gross book value of buildings and building improvements that are subject to financing leases, which are included in the historical book value of 

building and building improvements in Note 2.h., but excluded from Schedule III.

(3) Represents the gross book value of non-real estate assets that are included in the historical book value of construction in progress assets in Note 2.h. The historical 
book value of real estate assets associated with owned buildings that were related to construction in progress as of December 31, 2020 is included in Schedule III. 

The following table presents a reconciliation of the accumulated depreciation of real estate assets, as presented in Schedule III 
below, to the total accumulated depreciation for all property, plant and equipment presented on our Consolidated Balance Sheet as 
of December 31, 2020:

Accumulated Depreciation of Real Estate Assets, As Reported on Schedule III

Add Reconciling Items:

Accumulated Depreciation - non-real estate assets(1)

Accumulated Depreciation - racking in leased facilities(2)

Accumulated Depreciation - financing leases(3)

     Total Reconciling Items

Accumulated Depreciation, As Reported on Consolidated Balance Sheet

$ 

1,097,616 

1,549,986 

941,028 

155,264 

2,646,278 

$ 

3,743,894 

(1) Represents the accumulated depreciation of non-real estate assets that is included in the total accumulated depreciation of property, plant and equipment on our 
Consolidated Balance Sheet, but excluded from Schedule III as the assets to which this accumulated depreciation relates are not considered real estate assets 
associated with owned buildings.

(2) Represents the accumulated depreciation of racking as of December 31, 2020 installed in our 1,167 leased facilities, which is included in total accumulated 

depreciation of property, plant and equipment on our Consolidated Balance Sheet, but excluded from Schedule III, as disclosed in Footnote 1 to Schedule III. 

(3) Represents the accumulated depreciation of buildings and building improvements as of December 31, 2020 that are subject to financing leases, which is included in 
the total accumulated depreciation of property, plant and equipment on our Consolidated Balance Sheet, but excluded from Schedule III, as disclosed in Footnote 1 
to Schedule III.

IRON MOUNTAIN 2020 FORM 10-K

125

 
 
 
 
 
 
 
 
Table of Contents

Part IV

IRON MOUNTAIN INCORPORATED
SCHEDULE III—SCHEDULE OF REAL ESTATE AND 
ACCUMULATED DEPRECIATION (CONTINUED)

DECEMBER 31, 2020
(Dollars in thousands)

(A)

(B)

(C)

(D)

(E)

(F)

REGION/COUNTRY/
STATE/CAMPUS
ADDRESS

North America

FACILITIES(1)

ENCUMBRANCES

INITIAL COST
TO COMPANY(1)

COST 
CAPITALIZED
SUBSEQUENT TO
ACQUISITION(1)(2)

GROSS AMOUNT 
CARRIED AT 
CLOSE OF
CURRENT
PERIOD(1)(8)

ACCUMULATED
DEPRECIATION 
AT CLOSE OF
CURRENT
PERIOD(1)(8)

DATE OF
CONSTRUCTION
OR ACQUIRED(3)

LIFE ON WHICH
DEPRECIATION IN
LATEST INCOME
STATEMENT IS
COMPUTED

United States
(Including Puerto Rico)

140 Oxmoor Ct, 
Birmingham, 
Alabama

1420 North Fiesta 
Blvd, Gilbert, 
Arizona

4802 East Van 
Buren, Phoenix, 
Arizona

615 North 48th 
Street, Phoenix, 
Arizona

2955 S. 
18th Place, 
Phoenix, Arizona

4449 South 
36th St, Phoenix, 
Arizona

8521 E. Princess 
Drive, Scottsdale, 
Arizona

600 Burning Tree 
Rd, Fullerton, 
California

21063 Forbes St, 
Hayward, 
California

1025 North 
Highland Ave, 
Los Angeles, 
California

1010 - 1006 
North Mansfield, 
Los Angeles, 
California

1350 West Grand 
Ave, Oakland, 
California

1760 North Saint 
Thomas Circle, 
Orange, 
California

1915 South 
Grand Ave, Santa 
Ana, California

2680 Sequoia Dr, 
South Gate, 
California

336 Oyster Point 
Blvd, South San 
Francisco, 
California

25250 South 
Schulte Rd, 
Tracy, California

3576 N. Moline, 
Aurora, Colorado

5151 E. 46th Ave, 
Denver, Colorado

1  $ 

—  $ 

1,322  $ 

978  $ 

2,300  $ 

1,181 

2001

Up to 40 years

1 

1 

1 

1 

1 

1 

1 

1 

1 

1 

1 

1 

1 

1 

1 

1 

1 

1 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

1,637 

2,741 

4,378 

2,115 

2001

Up to 40 years

15,599 

143,887 

159,486 

3,246 

2019

Up to 40 years

423,107 

21,338 

444,445 

43,817 

2018 (5) Up to 40 years

12,178 

14,250 

26,428 

6,019 

2007

Up to 40 years

7,305 

1,049 

8,354 

5,190 

2012

Up to 40 years

87,865 

1,879 

89,744 

12,425 

2018 (5) Up to 40 years

4,762 

1,899 

6,661 

3,091 

2002

Up to 40 years

13,407 

365 

13,772 

2,912 

2019 (7) Up to 40 years

10,168 

26,791 

36,959 

15,136 

1988

Up to 40 years

749 

— 

749 

128 

2014

Up to 40 years

15,172 

7,251 

22,423 

15,293 

1997

Up to 40 years

4,576 

499 

5,075 

1,981 

2002

Up to 40 years

3,420 

1,272 

4,692 

2,027 

2001

Up to 40 years

6,329 

2,251 

8,580 

4,291 

2002

Up to 40 years

15,100 

49 

15,149 

2,446 

2019 (7) Up to 40 years

3,049 

1,774 

4,823 

2,232 

2001

Up to 40 years

1,583 

6,312 

4,469 

709 

6,052 

7,021 

2,025 

2001

Up to 40 years

1,752 

2014

Up to 40 years

126

IRON MOUNTAIN 2020 FORM 10-K

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Part IV

IRON MOUNTAIN INCORPORATED
SCHEDULE III—SCHEDULE OF REAL ESTATE AND 
ACCUMULATED DEPRECIATION (CONTINUED)

DECEMBER 31, 2020
(Dollars in thousands)

(A)

(B)

(C)

(D)

(E)

(F)

REGION/COUNTRY/
STATE/CAMPUS
ADDRESS

FACILITIES(1)

ENCUMBRANCES

INITIAL COST
TO COMPANY(1)

COST 
CAPITALIZED
SUBSEQUENT TO
ACQUISITION(1)(2)

GROSS AMOUNT
CARRIED AT 
CLOSE OF 
CURRENT
PERIOD(1)(8)

ACCUMULATED
DEPRECIATION 
AT CLOSE OF
CURRENT
PERIOD(1)(8)

DATE OF
CONSTRUCTION 
OR ACQUIRED(3)

LIFE ON WHICH
DEPRECIATION IN
LATEST INCOME
STATEMENT IS
COMPUTED

North America (continued)

United States
(Including Puerto Rico
(continued)

11333 E 
53rd Ave, Denver, 
Colorado

4300 Brighton 
Boulevard, 
Denver, Colorado

20 Eastern Park 
Rd, East 
Hartford, 
Connecticut

Bennett Rd, 
Suffield, 
Connecticut

Kennedy Road, 
Windsor, 
Connecticut

293 Ella Grasso 
Rd, Windsor 
Locks, 
Connecticut

150-200 Todds 
Ln, Wilmington, 
Delaware

13280 Vantage 
Way, 
Jacksonville, 
Florida

12855 Starkey 
Rd, Largo, 
Florida

7801 Riviera 
Blvd, Miramar, 
Florida

10002 Satellite 
Blvd, Orlando, 
Florida

3501 Electronics 
Way, West Palm 
Beach, Florida

1890 MacArthur 
Blvd, Atlanta, 
Georgia

3881 Old Gordon 
Rd, Atlanta, 
Georgia

5319 Tulane 
Drive SW, 
Atlanta, Georgia

6111 Live Oak 
Parkway, 
Norcross, 
Georgia

3150 Nifda Dr, 
Smyrna, Georgia

2425 South 
Halsted St, 
Chicago, Illinois

1301 S. Rockwell 
St, Chicago, 
Illinois

1  $ 

—  $ 

7,403  $ 

10,232  $ 

17,635  $ 

9,949 

2001

Up to 40 years

1 

1 

2 

2 

1 

1 

1 

1 

1 

1 

1 

1 

1 

1 

1 

1 

1 

1 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

116,336 

21,257 

137,593 

14,131 

2017

Up to 40 years

7,417 

1,904 

9,321 

6,340 

2002

Up to 40 years

1,768 

940 

2,708 

1,459 

2000

Up to 40 years

10,447 

31,259 

41,706 

21,987 

2001

Up to 40 years

4,021 

2,072 

6,093 

3,008 

2002

Up to 40 years

7,226 

1,048 

8,274 

5,205 

2002

Up to 40 years

1,853 

573 

2,426 

1,013 

2001

Up to 40 years

3,293 

3,005 

6,298 

3,399 

2001

Up to 40 years

8,250 

1,927 

234 

343 

8,484 

1,027 

2017

Up to 40 years

2,270 

938 

2001

Up to 40 years

4,201 

13,851 

18,052 

7,604 

2001

Up to 40 years

1,786 

1,185 

772 

790 

2,558 

1,193 

2002

Up to 40 years

1,975 

898 

2001

Up to 40 years

2,808 

3,940 

6,748 

3,560 

2002

Up to 40 years

3,542 

2,720 

6,262 

517 

2017

Up to 40 years

463 

7,470 

777 

1,670 

1,240 

9,140 

763 

1990

Up to 40 years

4,536 

2006

Up to 40 years

7,947 

19,884 

27,831 

16,600 

1999

Up to 40 years

IRON MOUNTAIN 2020 FORM 10-K

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Table of Contents

Part IV

IRON MOUNTAIN INCORPORATED
SCHEDULE III—SCHEDULE OF REAL ESTATE AND 
ACCUMULATED DEPRECIATION (CONTINUED)

DECEMBER 31, 2020
(Dollars in thousands)

(A)

(B)

(C)

(D)

(E)

(F)

REGION/COUNTRY/
STATE/CAMPUS 
ADDRESS

FACILITIES(1)

ENCUMBRANCES

INITIAL COST
TO COMPANY(1)

COST 
CAPITALIZED
SUBSEQUENT TO
ACQUISITION(1)(2)

GROSS AMOUNT
CARRIED AT 
CLOSE OF
CURRENT
PERIOD(1)(8)

ACCUMULATED
DEPRECIATION 
AT CLOSE OF
CURRENT
PERIOD(1)(8)

DATE OF
CONSTRUCTION
OR ACQUIRED(3)

LIFE ON WHICH
DEPRECIATION IN
LATEST INCOME
STATEMENT IS
COMPUTED

North America (continued)

United States
(Including Puerto Rico)
(continued)

2604 West 
13th St, Chicago, 
Illinois

2211 W. Pershing 
Rd, Chicago, 
Illinois

2255 Pratt Blvd, 
Elk Grove, Illinois

4175 Chandler 
Dr Opus No. 
Corp, Hanover 
Park, Illinois

2600 Beverly 
Drive, Lincoln, 
Illinois

6090 NE 
14th Street, Des 
Moines, Iowa

South 7th St, 
Louisville, 
Kentucky

26 Parkway Drive 
(fka 133 
Pleasant), 
Scarborough, 
Maine

8928 McGaw Ct, 
Columbia, 
Maryland

10641 Iron Bridge 
Rd, Jessup, 
Maryland

96 High St, 
Billerica, 
Massachusetts

120 Hampden St, 
Boston, 
Massachusetts

32 George St, 
Boston, 
Massachusetts

14500 Weston 
Pkwy, Cary, North 
Carolina

3435 Sharps Lot 
Rd, Dighton, 
Massachusetts

77 Constitution 
Boulevard, 
Franklin, 
Massachusetts

216 Canal St, 
Lawrence, 
Massachusetts

Bearfoot Road, 
Northboro, 
Massachusetts

38300 Plymouth 
Road, Livonia, 
Michigan

1  $ 

—  $ 

404  $ 

2,888  $ 

3,292  $ 

2,874 

2001

Up to 40 years

1 

1 

1 

1 

1 

4 

1 

1 

1 

1 

1 

1 

1 

1 

1 

1 

2 

1 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

4,264 

13,995 

18,259 

9,024 

2001

Up to 40 years

1,989 

22,048 

1,378 

622 

709 

3,893 

2,801 

923 

511 

5,882 

1,681 

2000

Up to 40 years

24,849 

10,352 

2014

Up to 40 years

2,301 

319 

2015

Up to 40 years

1,133 

443 

2003

Up to 40 years

14,547 

15,256 

5,885 

Various

Up to 40 years

8,337 

389 

8,726 

3,386 

2015 (7) Up to 40 years

2,198 

6,441 

8,639 

3,905 

1999

Up to 40 years

3,782 

1,459 

5,241 

2,801 

2000

Up to 40 years

3,221 

3,948 

7,169 

3,781 

1998

Up to 40 years

164 

939 

1,103 

576 

2002

Up to 40 years

1,820 

5,391 

7,211 

5,630 

1991

Up to 40 years

1,880 

2,229 

4,109 

2,071 

1999

Up to 40 years

1,911 

5,413 

797 

224 

2,708 

2,130 

1999

Up to 40 years

5,637 

857 

2014

Up to 40 years

1,298 

1,123 

2,421 

1,840 

2001

Up to 40 years

55,923 

12,745 

68,668 

42,266 

Various

Up to 40 years

10,285 

1,920 

12,205 

4,310 

2015 (7) Up to 40 years

128

IRON MOUNTAIN 2020 FORM 10-K

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Part IV

IRON MOUNTAIN INCORPORATED
SCHEDULE III—SCHEDULE OF REAL ESTATE AND 
ACCUMULATED DEPRECIATION (CONTINUED)

DECEMBER 31, 2020
(Dollars in thousands)

(A)

(B)

(C)

(D)

(E)

(F)

REGION/COUNTRY/
STATE/CAMPUS 
ADDRESS

FACILITIES(1)

ENCUMBRANCES

INITIAL COST
TO COMPANY(1)

COST 
CAPITALIZED
SUBSEQUENT TO
ACQUISITION(1)(2)

GROSS AMOUNT
CARRIED AT 
CLOSE OF 
CURRENT
PERIOD(1)(8)

ACCUMULATED
DEPRECIATION 
AT CLOSE OF 
CURRENT
PERIOD(1)(8)

DATE OF
CONSTRUCTION
OR ACQUIRED(3)

LIFE ON WHICH
DEPRECIATION IN
LATEST INCOME
STATEMENT IS
COMPUTED

North America (continued)

United States
(Including Puerto Rico)
(continued)

6601 Sterling 
Dr South, Sterling 
Heights, Michigan

1985 Bart Ave, 
Warren, Michigan

Wahl Court, 
Warren, Michigan

31155 Wixom Rd, 
Wixom, Michigan

3140 Ryder Trail 
South, Earth City, 
Missouri

Missouri Bottom 
Road, 
Hazelwood, 
Missouri

Leavenworth 
St/18th St, 
Omaha, 
Nebraska

4105 North Lamb 
Blvd, Las Vegas, 
Nevada

17 Hydro Plant 
Rd, Milton, New 
Hampshire

3003 Woodbridge 
Avenue, Edison, 
New Jersey

811 Route 33, 
Freehold, New 
Jersey

51-69 & 77-81 
Court St, Newark, 
New Jersey

560 Irvine Turner 
Blvd, Newark, 
New Jersey

231 Johnson Ave, 
Newark, New 
Jersey

650 Howard 
Avenue, 
Somerset, New 
Jersey

100 Bailey Ave, 
Buffalo, New York

64 Leone Ln, 
Chester, New 
York

1368 County Rd 
8, Farmington, 
New York

County Rd 10, 
Linlithgo, New 
York

77 Seaview Blvd, 
N. Hempstead 
New York

1  $ 

—  $ 

1,294  $ 

1,250  $ 

2,544  $ 

1,276 

2002

Up to 40 years

1 

2 

1 

1 

4 

3 

1 

1 

1 

3 

1 

1 

1 

1 

1 

1 

1 

2 

1 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

1,802 

3,426 

4,000 

3,072 

530 

2,684 

1,482 

3,398 

2,332 

6,110 

5,482 

6,470 

1,187 

2000

Up to 40 years

3,882 

Various

Up to 40 years

2,872 

2001

Up to 40 years

2,558 

2004

Up to 40 years

28,282 

5,073 

33,355 

8,667 

Various (7) Up to 40 years

2,924 

19,855 

22,779 

8,295 

Various

Up to 40 years

3,430 

8,965 

12,395 

6,276 

2002

Up to 40 years

6,179 

4,445 

10,624 

6,895 

2001

Up to 40 years

310,404 

56,509 

366,913 

29,990 

2018 (5) Up to 40 years

38,697 

57,207 

95,904 

56,003 

Various

Up to 40 years

11,734 

10,437 

22,171 

2,179 

2015

Up to 40 years

9,522 

1,718 

11,240 

1,109 

2015

Up to 40 years

8,945 

2,399 

11,344 

1,173 

2015

Up to 40 years

3,585 

11,835 

15,420 

6,553 

2006

Up to 40 years

1,324 

5,086 

11,437 

12,761 

7,052 

1998

Up to 40 years

1,132 

6,218 

3,606 

2000

Up to 40 years

2,611 

4,788 

7,399 

4,869 

1998

Up to 40 years

102 

3,233 

3,335 

1,782 

2001

Up to 40 years

5,719 

1,442 

7,161 

2,925 

2006

Up to 40 years

IRON MOUNTAIN 2020 FORM 10-K

129

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Part IV

IRON MOUNTAIN INCORPORATED
SCHEDULE III—SCHEDULE OF REAL ESTATE AND 
ACCUMULATED DEPRECIATION (CONTINUED)

DECEMBER 31, 2020
(Dollars in thousands)

(A)

(B)

(C)

(D)

(E)

(F)

REGION/COUNTRY/
STATE/CAMPUS 
ADDRESS

FACILITIES(1)

ENCUMBRANCES

INITIAL COST
TO COMPANY(1)

COST 
CAPITALIZED
SUBSEQUENT TO
ACQUISITION(1)(2)

GROSS AMOUNT
CARRIED AT 
CLOSE OF 
CURRENT
PERIOD(1)(8)

ACCUMULATED
DEPRECIATION 
AT CLOSE OF 
CURRENT
PERIOD(1)(8)

DATE OF
CONSTRUCTION
OR ACQUIRED(3)

LIFE ON WHICH
DEPRECIATION IN
LATEST INCOME
STATEMENT IS
COMPUTED

North America (continued)

United States
(Including Puerto Rico)
(continued)

37 Hurds Corner 
Road, Pawling, 
New York

Ulster Ave/Route 
9W, Port Ewen, 
New York

Binnewater Rd, 
Rosendale, New 
York

220 Wavel St, 
Syracuse, New 
York

2235 Cessna 
Drive, Burlington, 
North Carolina

826 Church 
Street, 
Morrisville, North 
Carolina

1275 East 40th, 
Cleveland, Ohio

7208 Euclid 
Avenue, 
Cleveland, Ohio

4260 Tuller Ridge 
Rd, Dublin, Ohio

3366 South Tech 
Boulevard, 
Miamisburg, Ohio

302 South Byrne 
Rd, Toledo, Ohio

7530 N. 
Leadbetter Road, 
Portland, Oregon

Branchton Rd, 
Boyers, 
Pennsylvania

800 Carpenters 
Crossings, 
Folcroft, 
Pennsylvania

Las Flores 
Industrial Park, 
Rio Grande, 
Puerto Rico

24 Snake Hill 
Road, 
Chepachet, 
Rhode Island

1061 Carolina 
Pines Road, 
Columbia, South 
Carolina

2301 Prosperity 
Way, Florence, 
South Carolina

Mitchell Street, 
Knoxville, 
Tennessee

1  $ 

—  $ 

4,323  $ 

1,285  $ 

5,608  $ 

2,471 

2005

Up to 40 years

3 

2 

1 

1 

1 

1 

1 

1 

1 

1 

1 

3 

1 

1 

1 

1 

1 

2 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

23,137 

11,745 

34,882 

23,388 

2001

Up to 40 years

5,142 

11,827 

16,969 

7,696 

Various

Up to 40 years

2,929 

2,765 

5,694 

3,098 

1997

Up to 40 years

1,602 

7,087 

3,129 

3,336 

328 

266 

606 

4,071 

1,930 

277 

2015

Up to 40 years

7,353 

1,558 

2017

Up to 40 years

3,735 

7,407 

2,137 

1999

Up to 40 years

3,471 

2001

Up to 40 years

1,030 

1,881 

2,911 

1,562 

1999

Up to 40 years

29,092 

674 

29,766 

3,085 

2018 (5) Up to 40 years

602 

5,187 

1,090 

1,874 

1,692 

7,061 

820 

2001

Up to 40 years

4,314 

2002

Up to 40 years

21,166 

243,167 

264,333 

70,834 

Various

Up to 40 years

2,457 

976 

3,433 

2,168 

2000

Up to 40 years

4,185 

3,528 

7,713 

4,698 

2001

Up to 40 years

2,659 

2,243 

4,902 

3,120 

2001

Up to 40 years

— 

11,776 

2,348 

14,124 

3,706 

2016 (7) Up to 40 years

— 

— 

2,846 

1,259 

4,105 

1,427 

2016 (7) Up to 40 years

718 

4,575 

5,293 

2,229 

Various

Up to 40 years

130

IRON MOUNTAIN 2020 FORM 10-K

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Part IV

IRON MOUNTAIN INCORPORATED
SCHEDULE III—SCHEDULE OF REAL ESTATE AND 
ACCUMULATED DEPRECIATION (CONTINUED)

DECEMBER 31, 2020
(Dollars in thousands)

(A)

(B)

(C)

(D)

(E)

(F)

REGION/COUNTRY/
STATE/CAMPUS 
ADDRESS

FACILITIES(1)

ENCUMBRANCES

INITIAL COST
TO COMPANY(1)

COST 
CAPITALIZED
SUBSEQUENT TO
ACQUISITION(1)(2)

GROSS AMOUNT
CARRIED AT 
CLOSE OF 
CURRENT
PERIOD(1)(8)

ACCUMULATED
DEPRECIATION 
AT CLOSE OF 
CURRENT
PERIOD(1)(8)

DATE OF
CONSTRUCTION
OR ACQUIRED(3)

LIFE ON WHICH
DEPRECIATION IN
LATEST INCOME
STATEMENT IS
COMPUTED

North America (continued)

United States 
(Including Puerto Rico)
(continued)

6005 Dana Way, 
Nashville, 
Tennessee

11406 Metric 
Blvd, Austin, 
Texas

6600 Metropolis 
Drive, Austin, 
Texas

Capital Parkway, 
Carrollton, Texas

1800 Columbian 
Club Dr, 
Carrolton, Texas

1905 John 
Connally Dr, 
Carrolton, Texas

13425 
Branchview Ln, 
Dallas, Texas

Cockrell Ave, 
Dallas, Texas

1819 S. Lamar 
St, Dallas, Texas

2000 Robotics 
Place Suite B, 
Fort Worth, Texas

1202 Ave R, 
Grand Prairie, 
Texas

6203 Bingle Rd, 
Houston, Texas

3502 Bissonnet 
St, Houston, 
Texas

2600 Center 
Street, Houston, 
Texas

5707 Chimney 
Rock, Houston, 
Texas

5249 Glenmont 
Ave, Houston, 
Texas

15333 
Hempstead Hwy, 
Houston, Texas

5757 Royalton 
Dr, Houston, 
Texas

9601 West 
Tidwell, Houston, 
Texas

7800 Westpark, 
Houston, Texas

15300 FM 1825, 
Pflugerville, 
Texas

2  $ 

—  $ 

1,827  $ 

3,063  $ 

4,890  $ 

2,105 

2000

Up to 40 years

1 

1 

3 

1 

1 

1 

1 

1 

1 

1 

1 

1 

1 

1 

1 

3 

1 

1 

1 

2 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

5,489 

2,212 

7,701 

4,274 

2002

Up to 40 years

4,519 

454 

4,973 

1,529 

2011

Up to 40 years

8,299 

19,673 

9,991 

1,190 

18,290 

3,182 

2015 (7) Up to 40 years

20,863 

10,111 

2013

Up to 40 years

2,174 

848 

3,022 

1,481 

2000

Up to 40 years

3,518 

3,685 

7,203 

4,335 

2001

Up to 40 years

1,277 

3,215 

5,328 

1,597 

1,145 

2,269 

2,874 

4,360 

7,597 

2,013 

2000

Up to 40 years

2,715 

2000

Up to 40 years

3,173 

2002

Up to 40 years

8,354 

2,204 

10,558 

6,283 

2003

Up to 40 years

3,188 

7,687 

11,495 

14,683 

9,102 

2001

Up to 40 years

722 

8,409 

6,051 

2002

Up to 40 years

2,840 

2,227 

5,067 

2,724 

2000

Up to 40 years

1,032 

1,211 

2,243 

1,145 

2002

Up to 40 years

3,467 

2,406 

5,873 

2,952 

2000

Up to 40 years

6,327 

37,843 

44,170 

14,745 

2004

Up to 40 years

1,795 

1,024 

2,819 

1,374 

2000

Up to 40 years

1,680 

2,395 

4,075 

1,424 

2001

Up to 40 years

6,323 

3,811 

1,344 

8,015 

7,667 

2,010 

2015 (7) Up to 40 years

11,826 

5,482 

2001

Up to 40 years

IRON MOUNTAIN 2020 FORM 10-K

131

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Part IV

IRON MOUNTAIN INCORPORATED
SCHEDULE III—SCHEDULE OF REAL ESTATE AND 
ACCUMULATED DEPRECIATION (CONTINUED)

DECEMBER 31, 2020
(Dollars in thousands)

(A)

(B)

(C)

(D)

(E)

(F)

REGION/COUNTRY/
STATE/CAMPUS 
ADDRESS

FACILITIES(1)

ENCUMBRANCES

INITIAL COST
TO COMPANY(1)

COST 
CAPITALIZED
SUBSEQUENT TO
ACQUISITION(1)(2)

GROSS AMOUNT
CARRIED AT 
CLOSE OF 
CURRENT
PERIOD(1)(8)

ACCUMULATED
DEPRECIATION 
AT CLOSE OF 
CURRENT
PERIOD(1)(8)

DATE OF
CONSTRUCTION
OR ACQUIRED(3)

LIFE ON WHICH
DEPRECIATION IN
LATEST INCOME
STATEMENT IS
COMPUTED

North America (continued)

United States 
(Including Puerto Rico)
(continued)

930 Avenue B, 
San Antonio, 
Texas

931 North 
Broadway, San 
Antonio, Texas

1665 S. 5350 
West, Salt Lake 
City, Utah

11052 Lakeridge 
Pkwy, Ashland, 
Virginia

2301 
International 
Parkway, 
Fredericksburg, 
Virginia

11660 Hayden 
Road, Manassas, 
Virginia

4555 Progress 
Road, Norfolk, 
Virginia

3725 Thirlane Rd. 
N.W., Roanoke, 
Virginia

7700-7730 
Southern Dr, 
Springfield, 
Virginia

22445 Randolph 
Dr, Sterling, 
Virginia

307 South 
140th St, Burien, 
Washington

8908 W. Hallett 
Rd, Cheney, 
Washington

6600 Hardeson 
Rd, Everett, 
Washington

1201 N. 96th St, 
Seattle, 
Washington

4330 South 
Grove Road, 
Spokane, 
Washington

12021 West 
Bluemound 
Road, 
Wauwatosa, 
Wisconsin

1  $ 

—  $ 

393  $ 

245  $ 

638  $ 

279 

1998

Up to 40 years

1 

1 

1 

1 

1 

1 

1 

1 

1 

1 

1 

1 

1 

1 

1 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

3,526 

1,161 

4,687 

2,963 

1999

Up to 40 years

6,239 

4,273 

10,512 

5,622 

2002

Up to 40 years

1,709 

1,927 

3,636 

1,974 

1999

Up to 40 years

20,980 

240 

21,220 

6,397 

2015 (7) Up to 40 years

104,824 

— 

104,824 

— 

2020

Up to 40 years

6,527 

1,125 

7,652 

3,541 

2011

Up to 40 years

2,577 

190 

2,767 

1,265 

2015 (7) Up to 40 years

14,167 

2,776 

16,943 

9,761 

2002

Up to 40 years

7,598 

3,737 

11,335 

6,328 

2005

Up to 40 years

2,078 

2,367 

4,445 

2,476 

1999

Up to 40 years

510 

4,266 

4,776 

2,250 

1999

Up to 40 years

5,399 

3,435 

8,834 

3,774 

2002

Up to 40 years

4,496 

2,531 

7,027 

3,744 

2001

Up to 40 years

3,906 

850 

4,756 

608 

2015

Up to 40 years

1,307 

2,134 

3,441 

1,542 

1999

Up to 40 years

160  $ 

—  $ 

1,833,229  $ 

1,062,809  $ 

2,896,038  $ 

777,507 

132

IRON MOUNTAIN 2020 FORM 10-K

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Part IV

IRON MOUNTAIN INCORPORATED
SCHEDULE III—SCHEDULE OF REAL ESTATE AND 
ACCUMULATED DEPRECIATION (CONTINUED)

DECEMBER 31, 2020
(Dollars in thousands)

(A)

(B)

(C)

(D)

(E)

(F)

REGION/COUNTRY/
STATE/CAMPUS 
ADDRESS

FACILITIES(1) ENCUMBRANCES

INITIAL COST 
TO COMPANY(1)

COST 
CAPITALIZED
SUBSEQUENT TO
ACQUISITION(1)(2)

GROSS AMOUNT
CARRIED AT 
CLOSE OF 
CURRENT 
PERIOD(1)(8)

ACCUMULATED
DEPRECIATION 
AT CLOSE OF 
CURRENT
PERIOD(1)(8)

DATE OF
CONSTRUCTION 
OR ACQUIRED(3)

LIFE ON WHICH
DEPRECIATION IN 
LATEST INCOME
STATEMENT IS
COMPUTED

North America (continued)

Canada

One Command 
Court, Bedford

195 Summerlea 
Road, Brampton

10 Tilbury Court, 
Brampton

8825 Northbrook 
Court, Burnaby

8088 Glenwood 
Drive, Burnaby

5811 26th Street 
S.E., Calgary

3905-101 Street, 
Edmonton

68 Grant Timmins 
Drive, Kingston

3005 Boul. Jean-
Baptiste 
Deschamps, 
Lachine

1655 Fleetwood, 
Laval

4005 Richelieu, 
Montreal

1209 Algoma Rd, 
Ottawa

1650 Comstock 
Rd, Ottawa

235 Edson Street, 
Saskatoon

640 Coronation 
Drive, 
Scarborough

610 Sprucewood 
Ave, Windsor

1  $ 

—  $ 

3,847  $ 

4,719  $ 

8,566  $ 

4,517 

2000

Up to 40 years

1   

1   

1   

1   

1   

1   

1   

1   

1   

1   

1   

1   

1   

1   

1   

—   

—   

—   

—   

5,403   

6,786   

12,189   

5,982 

2000

Up to 40 years

5,007   

17,897   

22,904   

8,974 

2000

Up to 40 years

8,091   

2,476   

10,567   

5,097 

2001

Up to 40 years

4,326   

7,414   

11,740   

5,143 

2005

Up to 40 years

—   

14,658   

9,497   

24,155   

12,102 

2000

Up to 40 years

—   

—   

—   

—   

—   

—   

—   

—   

—   

2,020   

3,639   

2,751   

910   

753   

579   

2,930   

1,703 

2000

Up to 40 years

4,392   

458 

2016

Up to 40 years

3,330   

1,506 

2000

Up to 40 years

8,196   

18,761   

26,957   

14,003 

2000

Up to 40 years

1,800   

2,657   

4,457   

1,912 

2000

Up to 40 years

1,059   

7,178   

8,237   

4,426 

2000

Up to 40 years

7,478   

90   

7,568   

2,884 

2017

Up to 40 years

829   

1,731   

2,560   

955 

2008

Up to 40 years

1,853   

1,345   

3,198   

1,399 

2000

Up to 40 years

—   

1,243   

733   

1,976   

778 

2007

Up to 40 years

16  $ 

176  $ 

—  $ 

72,200  $ 

83,526  $ 

155,726  $ 

71,839 

—  $ 

1,905,429  $ 

1,146,335  $ 

3,051,764  $ 

849,346 

IRON MOUNTAIN 2020 FORM 10-K

133

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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Part IV

IRON MOUNTAIN INCORPORATED
SCHEDULE III—SCHEDULE OF REAL ESTATE AND 
ACCUMULATED DEPRECIATION (CONTINUED)

DECEMBER 31, 2020
(Dollars in thousands)

(A)

(B)

(C)

(D)

(E)

(F)

FACILITIES(1) ENCUMBRANCES

INITIAL COST 
TO COMPANY(1)

COST 
CAPITALIZED
SUBSEQUENT TO
ACQUISITION(1)(2)

GROSS AMOUNT
CARRIED AT 
CLOSE OF 
CURRENT 
PERIOD(1)(8)

ACCUMULATED
DEPRECIATION 
AT CLOSE OF 
CURRENT
PERIOD(1)(8)

DATE OF
CONSTRUCTION 
OR ACQUIRED(3)

LIFE ON WHICH
DEPRECIATION IN 
LATEST INCOME
STATEMENT IS
COMPUTED

1  $ 

—  $ 

6,542  $ 

9,431  $ 

15,973  $ 

4,510 

2010

Up to 40 years

1   

1   

1   

1   

1   

1   

9   

1   

2   

3   

3   

1   

1   

1   

3   

4   

1   

1   

—   

—   

2,541   

7,137   

9,678   

4,953 

2003

Up to 40 years

1,408   

829   

2,237   

151 

2003

Up to 40 years

—   

3,136   

4,031   

7,167   

802 

2003

Up to 40 years

—   

1,935   

131   

2,066   

173 

2018

Up to 40 years

—   

6,980   

1,871   

8,851   

5,284 

2003

Up to 40 years

—   

20,486   

5,433   

25,919   

1,056 

2004

Up to 40 years

—   

7,418   

3,786   

11,204   

5,731 

2004

Up to 40 years

—   

10,847   

6,902   

17,749   

7,551 

2003

Up to 40 years

—   

5,277   

7,422   

12,699   

9,082 

2003

Up to 40 years

—   

3,119   

2,060   

5,179   

3,077 

2003

Up to 40 years

—   

20,307   

9,978   

30,285   

12,649 

2003

Up to 40 years

—   

—   

—   

4,039   

496   

4,535   

2,538 

2008

Up to 40 years

681   

1,519   

2,200   

1,497 

2004

Up to 40 years

2,636   

588   

3,224   

1,326 

2006

Up to 40 years

—   

1,750   

2,881   

4,631   

2,590 

2003

Up to 40 years

—   

21,318   

1,177   

22,495   

5,376 

2016 (4) Up to 40 years

—   

1,322   

36   

1,358   

326 

2016 (4) Up to 40 years

—   

3,390   

1,087   

4,477   

1,177 

2016 (4) Up to 40 years

REGION/COUNTRY/
STATE/CAMPUS 
ADDRESS

Europe

Gewerbeparkstr. 
3, Vienna, Austria

Woluwelaan 147, 
Diegem, Belgium

Stupničke 
Šipkovine 62, 
Zagreb, Croatia

Kratitirion 9 
Kokkinotrimithia 
Industrial District, 
Nicosia, Cyprus

Karyatidon 1, 
Agios Sylas 
Industrial Area 
(3rd), Limassol, 
Cyprus

65 Egerton Road, 
Birmingham, 
England

Corby 278, Long 
Croft Road, Corby, 
England

Otterham Quay 
Lane, Gillingham, 
England

Pennine Way, 
Hemel 
Hempstead, 
England

Kemble Industrial 
Park, Kemble, 
England

Gayton Road, 
Kings Lynn, 
England

Cody Road, 
London, England

17 Broadgate, 
Oldham, England

Harpway Lane, 
Sopley, England

Unit 1A 
Broadmoor Road, 
Swindom, England

Jeumont-
Schneider, 
Champagne Sur 
Seine, France

Bat I-VII Rue de 
Osiers, 
Coignieres, 
France

26 Rue de I 
Industrie, 
Fergersheim, 
France

Bat A, B, C1, C2, 
C3 Rue Imperiale, 
Gue de Longroi, 
France

134

IRON MOUNTAIN 2020 FORM 10-K

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Part IV

IRON MOUNTAIN INCORPORATED
SCHEDULE III—SCHEDULE OF REAL ESTATE AND 
ACCUMULATED DEPRECIATION (CONTINUED)

DECEMBER 31, 2020
(Dollars in thousands)

(A)

(B)

(C)

(D)

(E)

(F)

REGION/COUNTRY/
STATE/CAMPUS 
ADDRESS

Europe (continued)

FACILITIES(1)

ENCUMBRANCES

INITIAL COST 
TO COMPANY(1)

COST 
CAPITALIZED
SUBSEQUENT TO 
ACQUISITION(1)(2)

GROSS AMOUNT
CARRIED AT 
CLOSE OF 
CURRENT 
PERIOD(1)(8)

ACCUMULATED
DEPRECIATION 
AT CLOSE OF 
CURRENT
PERIOD(1)(8)

DATE OF
CONSTRUCTION 
OR ACQUIRED(3)

LIFE ON WHICH
DEPRECIATION IN 
LATEST INCOME
STATEMENT IS
COMPUTED

Le Petit Courtin 
Site de Dois, 
Gueslin, 
Mingieres, France

ZI des Sables, 
Morangis, France

45 Rue de Savoie, 
Manissieux, Saint 
Priest, France

Gutenbergstrabe 
55, Hamburg, 
Germany

Brommer Weg 1, 
Wipshausen, 
Germany

Warehouse and 
Offices 4 
Springhill, Cork, 
Ireland

17 Crag Terrace, 
Dublin, Ireland

Damastown 
Industrial Park, 
Dublin, Ireland

Portsmuiden 46, 
Amsterdam, The 
Netherlands

Schepenbergweg 
1, Amsterdam, 
The Netherlands

Vareseweg 130, 
Rotterdam, The 
Netherlands

Howemoss Drive, 
Aberdeen, 
Scotland

Traquair Road, 
Innerleithen, 
Scotland

Nettlehill Road, 
Houston Industrial 
Estate, Livingston, 
Scotland

Av Madrid s/n 
Poligono Industrial 
Matillas, Alcala de 
Henares, Spain

Calle Bronce, 37, 
Chiloeches, Spain

Ctra M.118 , Km.3 
Parcela 3, Madrid, 
Spain

Abanto Ciervava, 
Spain

1  $ 

—  $ 

14,141  $ 

1,025  $ 

15,166  $ 

2,558 

2016 (4) Up to 40 years

1   

1   

1   

1   

1   

1   

1   

1   

1   

1   

2   

1   

1   

1   

1   

1   

2   

277   

12,407   

17,744   

30,151   

21,152 

2004

Up to 40 years

—   

5,546   

322   

5,868   

1,075 

2016 (4) Up to 40 years

—   

4,022   

1,148   

5,170   

1,292 

2016 (4) Up to 40 years

—   

3,220   

2,039   

5,259   

3,712 

2006

Up to 40 years

—   

9,040   

3,617   

12,657   

5,520 

2014

Up to 40 years

—   

—   

2,818   

1,075   

3,893   

1,556 

2001

Up to 40 years

16,034   

9,136   

25,170   

9,330 

2012

Up to 40 years

—   

1,852   

2,175   

4,027   

2,662 

2015 (7) Up to 40 years

—   

1,258   

(600)   

658   

353 

2015 (7) Up to 40 years

—   

1,357   

1,244   

2,601   

1,900 

2015 (7) Up to 40 years

—   

6,970   

5,997   

12,967   

5,506 

Various

Up to 40 years

—   

113   

2,251   

2,364   

1,229 

2004

Up to 40 years

—   

11,517   

27,529   

39,046   

19,822 

2001

Up to 40 years

—   

186   

270   

456   

367 

2014

Up to 40 years

—   

—   

11,011   

3,540   

14,551   

3,734 

2010

Up to 40 years

3,981   

6,751   

10,732   

7,128 

2001

Up to 40 years

—   

1,053   

11   

1,064   

504 

Various

Up to 40 years

57  $ 

277  $ 

231,658  $ 

152,069  $ 

383,727  $ 

159,249 

IRON MOUNTAIN 2020 FORM 10-K

135

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Part IV

IRON MOUNTAIN INCORPORATED
SCHEDULE III—SCHEDULE OF REAL ESTATE AND 
ACCUMULATED DEPRECIATION (CONTINUED)

DECEMBER 31, 2020
(Dollars in thousands)

(A)

(B)

(C)

(D)

(E)

(F)

REGION/COUNTRY/
STATE/CAMPUS 
ADDRESS

Latin America

Amancio Alcorta 
2396, Buenos 
Aires, Argentina

Azara 1245, 
Buenos Aires, 
Argentina

Spegazzini, 
Ezeiza Buenos 
Aires, Argentina

Av Ernest de 
Moraes 815, 
Bairro Fim do 
Campo, Jarinu 
Brazil

Rua Peri 80, 
Jundiai, Brazil

Francisco de 
Souza e Melo, Rio 
de Janerio, Brazil

Hortolandia, Sao 
Paulo, Brazil

El Taqueral 99, 
Santiago, Chile

Panamericana 
Norte 18900, 
Santiago, Chile

Avenida 
Prolongacion 
del Colli 1104, 
Guadalajara, 
Mexico

Privada Las Flores 
No. 25 (G3), 
Guadalajara, 
Mexico

Tula KM Parque 
de Las, 
Huehuetoca, 
Mexico

Carretera 
Pesqueria 
Km2.5(M3), 
Monterrey, Mexico

Lote 2, Manzana 
A, (T2& T3), 
Toluca, Mexico

Prolongacion de la 
Calle 7 (T4), 
Toluca, Mexico

Panamericana 
Sur, KM 57.5, 
Lima, Peru

Av. Elmer Faucett 
3462, Lima, Peru

Calle Los 
Claveles-Seccion 
3, Lima, Peru

FACILITIES(1)

ENCUMBRANCES

INITIAL COST 
TO COMPANY(1)

COST 
CAPITALIZED
SUBSEQUENT TO 
ACQUISITION(1)(2)

GROSS AMOUNT
CARRIED AT 
CLOSE OF 
CURRENT 
PERIOD(1)(8)

ACCUMULATED
DEPRECIATION 
AT CLOSE OF 
CURRENT
PERIOD(1)(8)

DATE OF
CONSTRUCTION 
OR ACQUIRED(3)

LIFE ON WHICH
DEPRECIATION IN 
LATEST INCOME
STATEMENT IS
COMPUTED

2  $ 

—  $ 

655  $ 

722  $ 

1,377  $ 

439 

Various

Up to 40 years

1   

1   

1   

2   

3   

1   

5   

5   

1   

1   

2   

2   

1   

1   

7   

2   

1   

—   

166   

(164)   

2   

— 

1998

Up to 40 years

—   

12,773   

(10,481)   

2,292   

520 

2012

Up to 40 years

—   

12,562   

(4,547)   

8,015   

1,514 

2016 (4) Up to 40 years

—   

—   

—   

—   

—   

8,894   

(3,358)   

5,536   

1,146 

2016 (4) Up to 40 years

1,868   

7,676   

9,544   

3,150 

Various

Up to 40 years

24,078   

(4,430)   

19,648   

3,332 

2014

Up to 40 years

2,629   

34,428   

37,057   

12,808 

Various

Up to 40 years

4,001   

19,606   

23,607   

8,310 

2004

Up to 40 years

—   

374   

1,338   

1,712   

1,068 

2002

Up to 40 years

—   

905   

1,188   

2,093   

1,016 

2004

Up to 40 years

—   

19,937   

(1,421)   

18,516   

3,672 

2016 (4) Up to 40 years

—   

3,537   

4,462   

7,999   

3,749 

2004

Up to 40 years

—   

2,204   

4,481   

6,685   

5,279 

2002

Up to 40 years

—   

7,544   

14,744   

22,288   

7,474 

2007

Up to 40 years

—   

1,549   

692   

2,241   

1,222 

Various

Up to 40 years

528   

4,112   

4,882   

8,994   

4,822 

Various

Up to 40 years

—   

8,179   

29,493   

37,672   

9,399 

2010

Up to 40 years

39  $ 

528  $ 

115,967  $ 

99,311  $ 

215,278  $ 

68,920 

136

IRON MOUNTAIN 2020 FORM 10-K

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Part IV

IRON MOUNTAIN INCORPORATED
SCHEDULE III—SCHEDULE OF REAL ESTATE AND 
ACCUMULATED DEPRECIATION (CONTINUED)

DECEMBER 31, 2020
(Dollars in thousands)

(A)

(B)

(C)

(D)

(E)

(F)

REGION/COUNTRY/
STATE/CAMPUS 
ADDRESS

Asia

Warehouse No 4, 
Shanghai, China

Jalan Karanggan 
Muda Raya No 59, 
Bogor Indonesia

1 Serangoon 
North Avenue 6, 
Singapore

2 Yung Ho Road, 
Singapore

26 Chin Bee Drive, 
Singapore

IC1 69 Moo 2, Soi 
Wat Namdaeng, 
Bangkok, Thailand

Australia

8 Whitestone 
Drive, Austins 
Ferry, Australia

6 Norwich Street, 
South Launceston, 
Australia

Total

FACILITIES(1)

ENCUMBRANCES

INITIAL COST 
TO COMPANY(1)

COST 
CAPITALIZED 
SUBSEQUENT TO
 ACQUISITION(1)(2)

GROSS AMOUNT 
CARRIED AT
 CLOSE OF 
CURRENT 
PERIOD(1)(8)

ACCUMULATED
DEPRECIATION 
AT CLOSE OF
 CURRENT
 PERIOD(1)(8)

DATE OF 
CONSTRUCTION 
OR ACQUIRED(3)

LIFE ON WHICH
DEPRECIATION IN
LATEST INCOME
STATEMENT IS
COMPUTED

1  $ 

1   

1   

1   

1   

2   

7  $ 

1  $ 

1   

—  $ 

1,530  $ 

818  $ 

2,348  $ 

478 

2013

Up to 40 years

—   

7,897   

4,902   

12,799   

2,714 

2017

Up to 40 years

—   

58,637   

54,113   

112,750   

7,309 

2018 (7) Up to 40 years

—   

—   

—   

10,395   

1,968   

12,363   

1,977 

2016 (4) Up to 40 years

15,699   

3,009   

18,708   

2,986 

2016 (4) Up to 40 years

13,226   

2,888   

16,114   

3,995 

2016 (4) Up to 40 years

—  $ 

107,384  $ 

67,698  $ 

175,082  $ 

19,459 

—  $ 

681  $ 

2,850  $ 

3,531  $ 

519 

2012

Up to 40 years

—   

1,090   

17   

1,107   

123 

2015

Up to 40 years

2  $ 

281  $ 

—  $ 

1,771  $ 

2,867  $ 

4,638  $ 

642 

805  $ 

2,362,209  $ 

1,468,280  $ 

3,830,489  $ 

1,097,616 

(1) The above information only includes the real estate facilities that are owned. The gross cost includes the cost for land, land improvements, buildings, building 

improvements and racking. The listing does not reflect the 1,167 leased facilities in our real estate portfolio. In addition, the above information does not include any 
value for financing leases for property that is classified as land, buildings and building improvements in our consolidated financial statements.

(2) Amount includes cumulative impact of foreign currency translation fluctuations.

(3) Date of construction or acquired represents the date we constructed the facility or acquired the facility through purchase or acquisition.

(4) Property was acquired in connection with our acquisition of Recall Holdings Limited.

(5) Property was acquired in connection with the IODC Transaction.

(6) Property was acquired in connection with the Credit Suisse Transaction.

(7) This date represents the date the categorization of the property was changed from a leased facility to an owned facility.

IRON MOUNTAIN 2020 FORM 10-K

137

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Part IV

IRON MOUNTAIN INCORPORATED
SCHEDULE III—SCHEDULE OF REAL ESTATE AND 
ACCUMULATED DEPRECIATION (CONTINUED)

DECEMBER 31, 2020
(Dollars in thousands)

(8) The following tables present the changes in gross carrying amount of real estate owned and accumulated depreciation for the years ended December 31, 2020 and 

2019:

GROSS CARRYING AMOUNT OF REAL ESTATE

Gross amount at beginning of period

Additions during period:

Discretionary capital projects
Other adjustments(1)

Foreign currency translation fluctuations

Deductions during period:

Cost of real estate sold, disposed or written-down 
Other adjustments(2)

YEAR ENDED DECEMBER 31,

2020

2019

$ 

3,856,515 

$ 

3,700,307 

157,239 

66,978 

10,198 

234,415 

(178,869) 

(81,572) 

(260,441) 

278,508 

25,077 

5,978 

309,563 

(153,355) 

— 

(153,355) 

Gross amount at end of period

$ 

3,830,489 

$ 

3,856,515 

(1) For the year ended December 31, 2020, this includes previously recorded construction in progress, not classified as owned real estate at December 31, 2019. For 
the year ended December 31, 2019, this includes costs associated with real estate we acquired which primarily includes building improvements and racking, 
which were previously subject to leases.

(2) For the year ended December 31, 2020, this includes the cost of racking associated with the facilities sold as part of the sale-leaseback transactions.

ACCUMULATED DEPRECIATION

Gross amount of accumulated depreciation at beginning of period

Additions during period:

Depreciation
Other adjustments(1)

Foreign currency translation fluctuations

Deductions during period:

Amount of accumulated depreciation for real estate assets sold, disposed or written-down
Other adjustments(2)

YEAR ENDED DECEMBER 31,

2020

2019

$ 

1,072,013 

$ 

1,011,050 

123,447 

122,366 

— 

8,590 

1,314 

3,514 

132,037 

127,194 

(54,978) 

(51,456) 

(66,231) 

— 

(106,434)  

(66,231) 

Gross amount of end of period

$ 

1,097,616 

$ 

1,072,013 

(1) For the year ended December 31, 2019, this includes accumulated depreciation associated with building improvements and racking, which were previously 

subject to leases

(2) For the year ended December 31, 2020, this includes the accumulated depreciation of racking associated with the facilities sold as part of the sale-leaseback 

transactions. 

The aggregate cost of our real estate assets for federal tax purposes at December 31, 2020 was approximately $3,769,000.

ITEM 16.   FORM 10-K SUMMARY.

Not applicable. 

138

IRON MOUNTAIN 2020 FORM 10-K

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

INDEX TO EXHIBITS  

Part IV

Certain exhibits indicated below are incorporated by reference to documents we have filed with the SEC. Each exhibit marked by a 
pound sign (#) is a management contract or compensatory plan. 

EXHIBIT
3.1

3.2

3.3

4.1

4.2

4.3

4.4

4.5

4.6

4.7

4.8

4.9

4.10

10.1

10.2

10.3

10.4

10.5

10.6

10.7

10.8

10.9

10.10

ITEM
Certificate of Incorporation of the Company, as filed with the Secretary of State of the State of Delaware on June 26, 
2014, as corrected by the Certificate of Correction of the Company filed with the Secretary of State of the State of 
Delaware on June 30, 2014. (Incorporated by reference to Annex B-1 to the Iron Mountain Incorporated Proxy 
Statement for the Special Meeting of Stockholders, filed with the SEC on December 23, 2014.)
Certificate of Merger, filed by the Company, effective as of January 20, 2015. (Incorporated by reference to the 
Company’s Current Report on Form 8‑K dated January 21, 2015.)
Bylaws of the Company. (Incorporated by reference to the Company’s Annual Report on Form 10-K for the year 
ended December 31, 2014.)
Senior Indenture, dated as of September 18, 2017, among the Company, the Guarantors named therein and Wells 
Fargo Bank, National Association, as trustee, relating to the 4.875% Senior Notes due 2027. (Incorporated by 
reference to the Company’s Current Report on Form 8-K dated September 18, 2017.)
Senior Indenture, dated as of November 13, 2017, among the Company, the Guarantors named therein, Wells Fargo 
Bank, National Association, as trustee, and Société Générale Bank & Trust, as paying agent, registrar and transfer 
agent, relating to the 3.875% GBP Senior Notes due 2025. (Incorporated by reference to the Company’s Current 
Report on Form 8-K dated November 13, 2017.)
Senior Indenture, dated as of December 27, 2017, among the Company, the Guarantors named therein and Wells 
Fargo Bank, National Association, as trustee, relating to the 5.25% Senior Notes due 2028. (Incorporated by 
reference to the Company’s Current Report on Form 8-K dated December 27, 2017.)
Senior Indenture, dated as of September 9, 2019, among the Company, the Subsidiary Guarantors and Wells Fargo 
Bank, National Association, as trustee, relating to the 4.875% Senior Notes due 2029.(Incorporated by reference to 
the Company's Current Report on Form 8-K dated September 9, 2019.)
Senior Indenture, dated as of June 22, 2020, among the Company, the Guarantors named therein and Wells Fargo 
Bank, National Association, as trustee, relating to the 5.000% Senior Notes due 2028. (Incorporated by reference to 
the Company’s Current Report on Form 8-K dated June 22, 2020.)
Senior Indenture, dated as of June 22, 2020, among the Company, the Guarantors named therein and Wells Fargo 
Bank, National Association, as trustee, relating to the 5.250% Senior Notes due 2030. (Incorporated by reference to 
the Company’s Current Report on Form 8-K dated June 22, 2020.)
Senior Indenture, dated as of June 22, 2020, among the Company, the Guarantors named therein and Wells Fargo 
Bank, National Association, as trustee, relating to the 5.625% Senior Notes due 2032. (Incorporated by reference to 
the Company’s Current Report on Form 8-K dated June 22, 2020.)
Senior Indenture, dated as of August 18, 2020, among the Company, the Guarantors named therein and Wells Fargo 
Bank, National Association, as trustee, relating to the 4.500% Senior Notes due 2031. (Incorporated by reference to 
the Company’s Current Report on Form 8-K dated August 18, 2020.)
Form of Stock Certificate representing shares of Common Stock, $0.01 par value per share, of the Company. 
(Incorporated by reference to the Company’s Current Report on Form 8‑K dated January 21, 2015.)
Description of Securities. (Incorporated by reference to the Company's Annual Report on Form 10-K for the year 
ended December 31, 2019.)
2008 Restatement of the Iron Mountain Incorporated Executive Deferred Compensation Plan. (#) (Incorporated by 
reference to the Company’s Annual Report on Form 10‑K for the year ended December 31, 2007.)
First Amendment to 2008 Restatement of the Iron Mountain Incorporated Executive Deferred Compensation Plan. (#) 
(Incorporated by reference to the Company’s Annual Report on Form 10‑K for the year ended December 31, 2008.)
Third Amendment to 2008 Restatement of the Iron Mountain Incorporated Executive Deferred Compensation Plan.
(#) (Incorporated by reference to the Company’s Quarterly Report on Form 10‑Q for the quarter ended June 30, 
2012.)
Fourth Amendment to 2008 Restatement of the Iron Mountain Incorporated Executive Deferred Compensation Plan. 
(#) (Incorporated by reference to the Company’s Annual Report on Form 10‑K for the year ended December 31, 
2012.)
Iron Mountain Incorporated 1995 Stock Incentive Plan, as amended. (#) (Incorporated by reference to Iron Mountain /
DE’s Current Report on Form 8‑K dated April 16, 1999.)
Iron Mountain Incorporated 2002 Stock Incentive Plan. (#) (Incorporated by reference to the Company’s Annual 
Report on Form 10‑K for the year ended December 31, 2002.)
Third Amendment to the Iron Mountain Incorporated 2002 Stock Incentive Plan. (#) (Incorporated by reference to the 
Company’s Current Report on Form 8-K dated June 11, 2008.)
Fourth Amendment to the Iron Mountain Incorporated 2002 Stock Incentive Plan. (#) (Incorporated by reference to the 
Company’s Current Report on Form 8‑K dated December 10, 2008.)
Fifth Amendment to the Iron Mountain Incorporated 2002 Stock Incentive Plan. (#) (Incorporated by reference to the 
Company’s Current Report on Form 8‑K dated June 9, 2010.)
Sixth Amendment to the Iron Mountain Incorporated 2002 Stock Incentive Plan. (#) (Incorporated by reference to the 
Company’s Quarterly Report on Form 10‑Q for the quarter ended June 30, 2011.)

IRON MOUNTAIN 2020 FORM 10-K

139

Table of Contents

Part IV

EXHIBIT
10.11

10.12

10.13

10.14

10.15

10.16

10.17

10.18

10.19

10.20

10.21

10.22

10.23

10.24

10.25

10.26

10.27

10.28

10.29

10.30

10.31

10.32

10.33

10.34

ITEM

Iron Mountain Incorporated 2014 Stock and Cash Incentive Plan. (#) (Incorporated by reference to Annex C to the 
Iron Mountain Incorporated Proxy Statement for the Special Meeting of Stockholders, filed with the SEC on 
December 23, 2014.)
First Amendment to the Iron Mountain Incorporated 2014 Stock and Cash Incentive Plan. (#) (Incorporated by 
reference to the Company’s Current Report on Form 8-K dated May 23, 2017.)
Second Amendment to the Iron Mountain Incorporated 2014 Stock and Cash Incentive Plan. (#) (Incorporated by 
reference to the Company’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2018.)
Form of Iron Mountain Incorporated Amended and Restated Non‑Qualified Stock Option Agreement. (#) (Incorporated 
by reference to the Company’s Annual Report on Form 10‑K for the year ended December 31, 2004.)
Form of Iron Mountain Incorporated Incentive Stock Option Agreement. (#) (Incorporated by reference to the 
Company’s Annual Report on Form 10‑K for the year ended December 31, 2004.)
Form of Iron Mountain Incorporated 1995 Stock Incentive Plan Non‑Qualified Stock Option Agreement (version 1). (#) 
(Incorporated by reference to the Company’s Annual Report on Form 10‑K for the year ended December 31, 2004.)
Form of Iron Mountain Incorporated 1995 Stock Incentive Plan Amended and Restated Iron Mountain Non‑Qualified 
Stock Option Agreement. (#) (Incorporated by reference to the Company’s Annual Report on Form 10‑K for the year 
ended December 31, 2004.)
Form of Iron Mountain Incorporated 1995 Stock Incentive Plan Incentive Stock Option Agreement. (#) (Incorporated 
by reference to the Company’s Annual Report on Form 10‑K for the year ended December 31, 2004.)
Form of Iron Mountain Incorporated 1995 Stock Incentive Plan Non‑Qualified Stock Option Agreement (version 2). (#) 
(Incorporated by reference to the Company’s Annual Report on Form 10‑K for the year ended December 31, 2004.)
Form of Iron Mountain Incorporated 2002 Stock Incentive Plan Stock Option Agreement (version 2B). (#) 
(Incorporated by reference to the Company’s Annual Report on Form 10‑K for the year ended December 31, 2013.)
Form of Performance Unit Agreement pursuant to the Iron Mountain Incorporated 2002 Stock Incentive Plan (version 
3). (#) (Incorporated by reference to the Company’s Quarterly Report on Form 10‑Q for the quarter ended March 31, 
2013.)
Form of Performance Unit Agreement pursuant to the Iron Mountain Incorporated 2002 Stock Incentive Plan (version 
20). (#) (Incorporated by reference to the Company’s Quarterly Report on Form 10‑Q for the quarter ended March 31, 
2013.)
Form of Performance Unit Agreement pursuant to the Iron Mountain Incorporated 2002 Stock Incentive Plan (version 
21). (#) (Incorporated by reference to the Company’s Current Report on Form 8‑K dated March 19, 2014.)
Form of Restricted Stock Unit Agreement pursuant to the Iron Mountain Incorporated 2002 Stock Incentive Plan 
(version 3). (#) (Incorporated by reference to the Company’s Quarterly Report on Form 10‑Q for the quarter ended 
June 30, 2012.)
Form of Restricted Stock Unit Agreement pursuant to the Iron Mountain Incorporated 2002 Stock Incentive Plan 
(version 12). (#) (Incorporated by reference to the Company’s Annual Report on Form 10-K for the year ended 
December 31, 2017.)
Form of Restricted Stock Unit Agreement pursuant to the Iron Mountain Incorporated 2014 Stock and Cash Incentive 
Plan (version 1). (#) (Incorporated by reference to the Company’s Annual Report on Form 10 K for the year ended 
December 31, 2014.)
Form of Restricted Stock Unit Agreement pursuant to the Iron Mountain Incorporated 2014 Stock and Cash Incentive 
Plan (version 2). (#) (Incorporated by reference to the Company’s Annual Report on Form 10-K for the year ended 
December 31, 2017.)
Form of Restricted Stock Unit Agreement pursuant to the Iron Mountain Incorporated 2014 Stock and Cash Incentive 
Plan (version 3). (#) (Incorporated by reference to the Company’s Quarterly Report on Form 10-Q for the quarter 
ended March 31, 2019.)
Form of Stock Option Agreement pursuant to the Iron Mountain Incorporated 2014 Stock and Cash Incentive Plan 
(version 1). (#) (Incorporated by reference to the Company’s Annual Report on Form 10‑K for the year ended 
December 31, 2014.)
Form of Stock Option Agreement pursuant to the Iron Mountain Incorporated 2014 Stock and Cash Incentive Plan 
(version 2). (#) (Incorporated by reference to the Company’s Annual Report on Form 10-K for the year ended 
December 31, 2017.)
Form of Stock Option Agreement pursuant to the Iron Mountain Incorporated 2014 Stock and Cash Incentive Plan 
(version 3). (#) (Incorporated by reference to the Company’s Quarterly Report on Form 10-Q for the quarter ended 
March 31, 2019.)
Form of Stock Option Form of Stock Option Agreement pursuant to the Iron Mountain Incorporated 2014 Stock and 
Cash Incentive Plan (version 4). (#) (Incorporated by reference to the Company's Annual Report on Form 10-K for the 
year ended December 31, 2019.)
Form of Performance Unit Agreement pursuant to the Iron Mountain Incorporated 2014 Stock and Cash Incentive 
Plan (version 1). (#) (Incorporated by reference to the Company’s Annual Report on Form 10‑K for the year ended 
December 31, 2016.)
Form of Performance Unit Agreement pursuant to the Iron Mountain Incorporated 2014 Stock and Cash Incentive 
Plan (version 2). (#) (Incorporated by reference to the Company’s Annual Report on Form 10‑K for the year ended 
December 31, 2016.)

140

IRON MOUNTAIN 2020 FORM 10-K

Table of Contents

Part IV

EXHIBIT
10.35

10.36

10.37

10.38

10.39

10.40

10.41
10.42

10.43

10.44

10.45

10.46

10.47

10.48

10.49

10.50

10.51

10.52

10.53

21.1
23.1

31.1
31.2
32.1
32.2

ITEM

Form of Performance Unit Agreement pursuant to the Iron Mountain Incorporated 2014 Stock and Cash Incentive 
Plan (version 3). (#) (Incorporated by reference to the Company’s Annual Report on Form 10-K for the year ended 
December 31, 2017.)
Form of Performance Unit Agreement pursuant to the Iron Mountain Incorporated 2014 Stock and Cash Incentive 
Plan (version 4). (#) (Incorporated by reference to the Company’s Quarterly Report on Form 10-Q for the quarter 
ended March 31, 2019).
Change in Control Agreement, dated September 8, 2008, between the Company and Ernest W. Cloutier. (#) 
(Incorporated by reference to the Company’s Quarterly Report on Form 10‑Q for the quarter ended March 31, 2014.)
Employment Offer Letter, dated November 30, 2012, from the Company to William L. Meaney. (#) (Incorporated by 
reference to the Company’s Current Report on Form 8‑K dated December 3, 2012.) 
Contract of Employment with Iron Mountain, between Patrick Keddy and Iron Mountain (UK) Ltd., effective as of April 
2, 2015. (#) (Incorporated by reference to the Company’s Annual Report on Form 10‑K for the year ended 
December 31, 2015.)
Ernest Cloutier Secondment Letter, dated March 27, 2017. (#) (Incorporated by reference to the Company’s Quarterly 
Report on Form 10‑Q for the quarter ended March 31, 2017.)
Restated Compensation Plan for Non-Employee Directors. (#) (Filed herewith.)
Iron Mountain Incorporated Director Deferred Compensation Plan. (#) (Incorporated by reference to the Company’s 
Annual Report on Form 10‑K for the year ended December 31, 2007.)
The Iron Mountain Companies Severance Plan. (#) (Incorporated by reference to the Company’s Current Report on 
Form 8‑K, dated March 13, 2012.)
Amended and Restated Severance Plan Severance Program No. 1. (#) (Incorporated by reference to the Company’s 
Quarterly Report on Form 10‑Q for the quarter ended March 31, 2012.)
First Amendment to Amended and Restated Severance Plan Severance Program No. 1. (#) (Incorporated by 
reference to the Company’s Annual Report on Form 10‑K for the year ended December 31, 2012.)
Second Amendment to The Iron Mountain Companies Severance Plan Severance Program No. 1. (#) (Incorporated 
by reference to the Company’s Current Report on Form 8‑K dated December 19, 2014.)
Severance Program No. 2. (#) (Incorporated by reference to the Company’s Current Report on Form 8‑K dated 
December 3, 2012.)
Credit Agreement, dated as of June 27, 2011, as amended and restated as of August 21, 2017, among the Company, 
Iron Mountain Information Management, LLC, certain other subsidiaries of the Company party thereto, the lenders 
and other financial institutions party thereto, JPMorgan Chase Bank, N.A., Toronto Branch, as Canadian 
Administrative Agent, and JPMorgan Chase Bank, N.A., as Administrative Agent. (Incorporated by reference to the 
Company’s Current Report on Form 8‑K dated August 21, 2017.)
First Amendment, dated as of December 12, 2017, to Credit Agreement, dated as of June 27, 2011, as amended and 
restated as of August 21, 2017, among the Company, Iron Mountain Information Management, LLC, certain other 
subsidiaries of the Company party thereto, the lenders and other financial institutions party thereto, JPMorgan Chase 
Bank, N.A., Toronto Branch, as Canadian Administrative Agent, and JPMorgan Chase Bank, N.A., as Administrative 
Agent. (Incorporated by reference to the Company’s Annual Report on Form 10-K for the year ended December 31, 
2017.)
Second Amendment, dated as of March 22, 2018, to Credit Agreement, dated as of June 27, 2011, as amended and 
restated as of August 21, 2017, among the Company, Iron Mountain Information Management, LLC, certain other 
subsidiaries of the Company party thereto, the lenders and other financial institutions party thereto, JPMorgan Chase 
Bank, N.A., Toronto Branch, as Canadian Administrative Agent, and JPMorgan Chase Bank, N.A., as Administrative 
Agent. (Incorporated by reference to the Company’s Current Report on Form 8-K dated March 22, 2018.)
Third Amendment and Refinancing Facility Agreement, dated as of June 4, 2018, to Credit Agreement, dated as of 
June 27, 2011, as amended and restated as of August 21, 2017, among the Company, Iron Mountain Information 
Management, LLC, certain other subsidiaries of the Company party thereto, the lenders and other financial 
institutions party thereto, JPMorgan Chase Bank, N.A., Toronto Branch, as Canadian Administrative Agent, and 
JPMorgan Chase Bank, N.A., as Administrative Agent. (Incorporated by reference to the Company’s Current Report 
on Form 8-K dated June 4, 2018.)
Fourth Amendment, dated as of December 20, 2019, to Credit Agreement, dated as of June 27, 2011, as amended 
and restated as of August 21, 2017, among the Company, Iron Mountain Information Management, LLC, certain other 
subsidiaries of the Company party thereto, the lenders and other financial institutions party thereto, JPMorgan Chase 
Bank, N.A., Toronto Branch, as Canadian Administrative Agent, and JPMorgan Chase Bank, N.A., as Administrative 
Agent. (Incorporated by reference to the Company's Annual Report on Form 10-K for the year ended December 31, 
2019.)

Incremental Term Loan Activation Notice, dated as of March 22, 2018, among Iron Mountain Information 
Management, LLC and the lenders party thereto. (Incorporated by reference to the Company’s Current Report on 
Form 8-K dated March 22, 2018.)
Subsidiaries of the Company. (Filed herewith.)
Consent of Deloitte & Touche LLP (Iron Mountain Incorporated, Delaware). (Filed herewith.)

Rule 13a‑14(a) Certification of Chief Executive Officer. (Filed herewith.)
Rule 13a‑14(a) Certification of Chief Financial Officer. (Filed herewith.)
Section 1350 Certification of Chief Executive Officer. (Furnished herewith.)
Section 1350 Certification of Chief Financial Officer. (Furnished herewith.)

IRON MOUNTAIN 2020 FORM 10-K

141

Table of Contents

Part IV

EXHIBIT
101.INS

ITEM

XBRL Instance Document - the instance document does not appear in the Interactive Data File because its XBRL 
tags are embedded within the Inline XBRL document.
101.SCH Inline XBRL Taxonomy Extension Schema Document.
101.CAL
101.DEF
101.LAB Inline XBRL Taxonomy Label Linkbase Document.
101.PRE Inline XBRL Taxonomy Extension Presentation Linkbase Document.

Inline XBRL Taxonomy Extension Calculation Linkbase Document.
Inline XBRL Taxonomy Extension Definition Linkbase Document.

104

Cover Page Interactive Data File. (Formatted as Inline XBRL and contained in Exhibit 101.)

142

IRON MOUNTAIN 2020 FORM 10-K

Table of Contents

SIGNATURES

Part IV

Pursuant to the requirements of Section 13 or 15(d) 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.

IRON MOUNTAIN INCORPORATED

By:

/s/ DANIEL BORGES

Daniel Borges
Senior Vice President, Chief Accounting Officer
(Principal Accounting Officer)

Dated: February 24, 2021

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons 
on behalf of the registrant and in the capacities and on the dates indicated.

NAME

TITLE

DATE

/s/ WILLIAM L. MEANEY

William L. Meaney

/s/ BARRY A. HYTINEN

Barry A. Hytinen

/s/ DANIEL BORGES

Daniel Borges

President and Chief Executive Officer and 
Director (Principal Executive Officer)

February 24, 2021

Executive Vice President and Chief Financial 
Officer (Principal Financial Officer)

  February 24, 2021

Senior Vice President, Chief Accounting 
Officer (Principal Accounting Officer)

  February 24, 2021

/s/ JENNIFER M. ALLERTON

  Director

  February 24, 2021

Jennifer M. Allerton

/s/ PAMELA M. ARWAY

  Director

  February 24, 2021

Pamela M. Arway

/s/ CLARKE H. BAILEY

  Director

  February 24, 2021

Clarke H. Bailey

/s/ KENT P. DAUTEN

  Director

  February 24, 2021

Kent P. Dauten

/s/ PAUL F. DENINGER

  Director

  February 24, 2021

Paul F. Deninger

/s/ MONTE E. FORD

Director

February 24, 2021

Monte E. Ford

IRON MOUNTAIN 2020 FORM 10-K

143

 
 
 
 
 
 
 
 
 
 
Table of Contents

Part IV

NAME

TITLE

/s/ PER-KRISTIAN HALVORSEN

Director

Per-Kristian Halvorsen

DATE

February 24, 2021

/s/ ROBIN L. MATLOCK

Director

February 24, 2021

Robin L. Matlock

/s/ WENDY J. MURDOCK

Director

February 24, 2021

Wendy J. Murdock

/s/ WALTER C. RAKOWICH

Director

February 24, 2021

Walter. C. Rakowich

/s/ DOYLE R. SIMONS

Director

February 24, 2021

Doyle R. Simons

/s/ ALFRED J. VERRECCHIA

Director

February 24, 2021

Alfred J. Verrecchia

144

IRON MOUNTAIN 2020 FORM 10-K

 
 
Wendy Murdock1, 4 
Retired Executive 
MasterCard Worldwide  
New York, NY

Walter C. Rakowich1, 3, 4 
Retired Executive 
Former CEO of Prologis  
San Francisco, CA

Doyle R. Simons2, 4 
Retired Executive 
Former CEO of Weyerhaeuser  
Seattle, WA

CORPORATE DIRECTORS AND OFFICERS 

(As of 03/01/20)

DIRECTORS

Alfred J. Verrecchia3, 7 
Chairperson of the Board of Directors  
Iron Mountain Incorporated 
Boston, MA

Jennifer Allerton1, 5, 6 
Retired Executive 
Hoffmann La Roche Ltd  
Basel, Switzerland

Pamela M. Arway2, 3 
Retired Executive 
American Express Company, Inc.  
New York, NY

Clarke H. Bailey1, 3, 5 
Retired Executive 
EDCI Holdings, Inc. 
New York, NY

Kent P. Dauten1, 3, 4 
Chairman 
Keystone Capital, Inc. 
Deerfield, IL

EXECUTIVE OFFICERS

William L. Meaney 
President and Chief Executive Officer

Ernest W. Cloutier  
Executive Vice President 
and General Manager, Global Records and 
Information Management

Deirdre Evens 
Executive Vice President and  
General Manager, Records and  
Information Management,  
North America

Edward E. Greene 
Executive Vice President,  
Chief Human Resources Officer

Paul F. Deninger2, 4, 6 
Senior Managing Director 
Davis Partners Group 
Boston, MA

Monte E. Ford2, 5, 6 
Principal Partner 
CIO Strategy Exchange  
Westlake, TX

Per-Kristian Halvorsen2, 3, 5, 6 
Retired Executive Intuit Inc.  
Mountain View, CA

Robin L. Matlock2, 5, 6 
Retired Executive 
VMware, Inc.  
Palo Alto, CA

William L. Meaney 
President and Chief Executive Officer 
Iron Mountain Incorporated  
Boston, MA

Barry A. Hytinen 
Executive Vice President and  
Chief Financial Officer

Mark Kidd 
Executive Vice President and  
General Manager, Data Centers

Deborah Marson 
Executive Vice President, 
General Counsel and Secretary

John Tomovcsik 
Executive Vice President 
and Chief Operating Officer

1  Member of Audit Committee (Mr. Rakowich is Chairperson)

2  Member of the Compensation Committee (Ms. Arway is Chairperson)

3  Member of the Nominating and Governance Committee (Mr. Verrecchia is Chairperson)

4  Member of the Finance Committee (Mr. Dauten is Chairperson)

5  Member of the Risk and Safety Committee (Mr. Bailey is Chairperson)

6 

7 

 Member of the Technology Committee (Mr. Halvorsen is Chairperson)

Independent Chairperson of the Board

CORPORATE INFORMATION

STOCKHOLDER INFORMATION

Transfer Agent and Registrar 
Computershare  
877/897-6892 
201/680-6578 
(outside the United States,  
US territories & Canada) 
800/231-5469 (hearing impaired—TDD phone)  
shrrelations@cpushareownerservices.com  
www.computershare.com/investor

Address stockholder inquiries and send certificates 
for transfer and address changes to: 
Iron Mountain Incorporated 
c/o Computershare Investor Services 
P.O. Box 505000, Louisville, KY 40233-5000

Overnight delivery  
Computershare Investor Services  
462 South 4th Street, Suite 1600 
Louisville, KY 40202

Copies of the Annual Report on Form 10-K  
are available upon request by contacting  
the company at the address below,  
attention: Investor Relations

Corporate Headquarters  
Iron Mountain Incorporated  
One Federal Street 
Boston, MA 02110  
800/935-6966 
www.ironmountain.com

Common Stock Data 
Traded: NYSE Symbol: IRM  
Beneficial Stockholders:  
283,329 as of March 15, 2021

Investor Relations 
Greer Aviv 
Senior Vice President, Investor Relations  
Iron Mountain Incorporated 
One Federal Street  
Boston, MA 02110  
617/535-2887

Annual Meeting Date 
Iron Mountain Incorporated will conduct  
its annual meeting of stockholders on  
Wednesday May 12, 2021, 9:00am ET 
via live audio webcast, accessed by visiting  
https://www.virtualshareholdermeeting.com/IRM2021

Independent Registered Public Accounting Firm 
Deloitte & Touche LLP  
200 Berkeley Street 
Boston, MA 02116

OPERATIONAL LOCATIONS 

(As of 12/31/20)

Asia Pacific
Australia
China
India
Indonesia
Malaysia
New Zealand
Philippines
Singapore
South Korea
Thailand

Europe
Armenia
Austria
Belarus
Belgium
Bulgaria
Croatia
Cyprus
Czech Republic
Denmark
England
Estonia

Eswatini
Finland
France
Germany
Greece
Hungary
Kazakhstan
Latvia
Lesotho
Lithuania
Netherlands
Northern Ireland
Norway

Poland
Republic of Ireland
Romania
Russia
Scotland
Serbia
Slovakia
South Africa
Spain
Sweden
Switzerland
Turkey
Ukraine
United Arab Emirates

IRM Stock Performance

COMPARISON OF 60 MONTH CUMULATIVE TOTAL RETURN AMONG IRON MOUNTAIN,  
THE MSCI REIT INDEX, THE S&P 500 AND THE RUSSELL 1000

120

100

80

60

40

20

0

-20

%
n
r
u
t
e
R

l
a
t
o
T

Latin America
Argentina
Brazil
Chile
Colombia
Mexico
Peru

North America
Canada
United States

IRM

RMZ

S&P 500

Russell 1000

-40
12/31/2015

12/31/2016

12/31/2017

12/31/2018

12/31/2019

12/31/2020

Note: Fiscal year end December 31, 2020

Source:  FactSet

This graph compares the change in the cumulative total return on our common stock to the cumulative total returns of the S&P 500 Index, the Russell 1000 Index 
and the MSCI REIT Index for the period from December 31, 2015, through December 31, 2020. This comparison assumes an investment of $100 on December 31, 2015, 
and the reinvestments of any dividends.