UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
FORM 10-K
(Mark One)
xANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the fiscal year ended December 31, 20172023
OR
oTRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from                  to                 .
Commission File Number: 001-32269
EXTRA SPACE STORAGE INC.
(Exact name of registrant as specified in its charter)
Maryland20-1076777
Maryland20-1076777
(State or other jurisdiction of

incorporation or organization)
(I.R.S. Employer

Identification No.)
2795 East Cottonwood Parkway, Suite 300
Salt Lake City, Utah 84121
(Address of principal executive offices and zip code)
Registrant’s telephone number, including area code: (801) 365-4600
Securities Registered Pursuant to Section 12(b) of the Act:
Title of Each Classeach classTrading symbolName of each exchange on which registered
Common Stock, $0.01 par valueEXRNew York Stock Exchange Inc.
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 x    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  x
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 x    No  ¨
Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes x    No  ¨
Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment of this Form 10-K.  ¨
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a 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.
Large accelerated filerxAccelerated filero
Non-accelerated filer
o  (Do not check if a smaller reporting company)
Smaller reporting companyo
Emerging growth companyo
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

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. x

If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of an error to previously issued financial statements. ☐
Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of the registrant’s executive officers during the relevant recovery period pursuant to § 240.10D-1(b). ☐
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ¨    No  x.
The aggregate market value of the common stock held by non-affiliates of the registrant was $9,468,562,974$19,343,600,223 based upon the closing price on the New York Stock Exchange on June 30, 2017,2023, the last business day of the registrant’s most recently completed second fiscal quarter. This calculation does not reflect a determination that persons whose shares are excluded from the computation are affiliates for any other purpose.
The number of shares outstanding of the registrant’s common stock, $0.01 par value per share, as of February 21, 201822, 2024 was 126,037,528.211,574,552.
Documents Incorporated by Reference
Portions of the registrant’s definitive proxy statement to be issued in connection with the registrant’s annual stockholders’ meeting to be held in 20182024 are incorporated by reference into Part III of this Annual Report on Form 10-K.






Extra Space Storage Inc.
Annual Report on Form 10-K
For the Year Ended December 31, 20172023
Table of Contents
Page
Item 1.
Item 1A.
Item 1B.
Item 2.1C.
Item 2.
Item 3.
Item 4.
Item 5.
Item 6.
Item 7.
Item 7A.
Item 8.
Item 9.
Item 9A.
Item 9B.
Item 9C.
Item 10.
Item 11.
Item 12.
Item 13.
Item 14.
Item 15.
Item 16.



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Statements Regarding Forward-Looking Information
Certain information set forth in this report contains “forward-looking statements” within the meaning of the federal securities laws. Forward-looking statements include statements concerning our plans, objectives, goals, strategies, future events, future revenues or performance, capital expenditures, financing needs, plans or intentions relating to acquisitions and other information that is not historical information. In some cases, forward-looking statements can be identified by terminology such as “believes,” “expects,” “estimates,” “may,” “will,” “should,” “anticipates,” or “intends” or the negative of such terms or other comparable terminology, or by discussions of strategy. We may also make additional forward-looking statements from time to time. All such subsequent forward-looking statements, whether written or oral, by us or on our behalf, are also expressly qualified by these cautionary statements.
All forward-looking statements, including without limitation, management’s examination of historical operating trends and estimates of future earnings, are based upon our current expectations and various assumptions. Our expectations, beliefs and projections are expressed in good faith and we believe there is a reasonable basis for them, but there can be no assurance that management’s expectations, beliefs and projections will result or be achieved. All forward-looking statements apply only as of the date made. We undertake no obligation to publicly update or revise forward-looking statements which may be made to reflect events or circumstances after the date made or to reflect the occurrence of unanticipated events.
There are a number of risks and uncertainties that could cause our actual results to differ materially from the forward-looking statements contained in or contemplated by this report. Any forward-looking statements should be considered in light of the risks referenced in “Part I. Item 1A. Risk Factors” below. Such factors include, but are not limited to:
 
adverse changes in general economic conditions, the real estate industry and in the markets in which we operate;
failure to close pending acquisitions and developments on expected terms, or at all;
the risk that Life Storage, Inc.’s (“Life Storage”) business will not be fully integrated successfully or that such integration may be more difficult, time-consuming or costly than expected, including our ability to retain and hire key personnel;
the uncertainty of expected future financial performance and results of the combined company following completion of the Life Storage merger;
the effect of competition from new and existing stores or other storage alternatives, which could cause rents and occupancy rates to decline;
potential liability for uninsured losses and environmental contamination;
the impact of the regulatory environment as well as national, state, and local laws and regulations including, without limitation, those governing real estate investment trusts (“REITs”), tenant reinsurance and other aspects of our business, which could adversely affect our results;
our ability to recover losses under our insurance policies;
disruptions in credit and financial markets and resulting difficulties in raising capital or obtaining credit at reasonable rates or at all, which could impede our ability to grow;
changes in global financial markets and increased interest rates;
availability of financing and capital, the levels of debt that we maintain and our credit ratings;
risks associated with acquisitions, dispositions and development of properties, including increased development costs due to additional regulatory requirements related to climate change and other factors;
reductions in asset valuations and related impairment charges;
our lack of sole decision-making authority with respect to our joint venture investments;
the effect of recent or future changes to U.S. tax laws;
the failure to maintain our REIT status for U.S. federal income tax purposes;
impacts from any outbreak of highly infectious or contagious diseases, including reduced demand for self-storage space and ancillary products and services such as tenant reinsurance, and potential decreases in occupancy and rental rates and staffing levels, which could adversely affect our results; and
economic uncertainty due to the impact of natural disasters, war or terrorism, which could adversely affect our business plan.
The forward-looking statements are based on our beliefs, assumptions and expectations of our future performance, taking into account all information currently available to us. These beliefs, assumptions and expectations are subject to risks and uncertainties and can change as a result of many possible events or factors, not all of which are known to us. If a change
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occurs, our business, financial condition, liquidity and results of operations may vary materially from those expressed in our forward-looking statements. You should carefully consider these risks before you make an investment decision with respect to our securities.
We disclaim any duty or obligation to update or revise any forward-looking statements set forth in this Annual Report on Form 10-K to reflect new information, future events or otherwise.

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PART I
Item 1.     Business
General
Extra Space Storage Inc. (“we,” “our,” “us” or the “Company”) is a fully integrated, self-administered and self-managed real estate investment trust (“REIT”) formed as a Maryland corporation on April 30, 2004, to own, operate, manage, acquire, develop and redevelop self-storage properties (“stores”).2004. We closed our initial public offering (“IPO”) on August 17, 2004. Our common stock is traded on the New York Stock Exchange under the symbol “EXR.”
We were formed to continue the business of Extra Space Storage LLC and its subsidiaries, which had engaged in the self-storage business since 1977. These companies were reorganized after the consummation of our IPO and various formation transactions. AsOur executive management team and board of December 31, 2017 we owned and/or operated 1,483 stores in 39 states, Washington, D.C.directors have extensive experience and Puerto Rico, comprising approximately 112 million square feet of net rentable space in approximately 1,020,000 units.
We operate in two distinct segments: (1) self-storage operations; and (2) tenant reinsurance. Our self-storage operations activities include rental operations of wholly-owned stores. Tenant reinsurance activities include the reinsurance of risks relating to the loss of goods stored by tenantsownership positions in the Company’s stores. We previously reported our financial statements in three segments, but based on operational changes and the way our management reviews company performance, we realigned our financial statements into two reportable segments. For more information and comparative financial and other information on our reportable business segments, refer to the segment information footnote in the notes to the consolidated financial statements in Item 8 of this Form 10-K.Company.
Substantially all of our business is conducted through Extra Space Storage LP (the “Operating Partnership”). Our primary assets are general partner and limited partner interests in the Operating Partnership. This structure is commonly referred to as an umbrella partnership REIT, or UPREIT. We have elected to be taxed as a REIT under the Internal Revenue Code of 1986, as amended (the “Internal Revenue Code”). To the extent we continue to qualify as a REIT we will not be subject to U.S. Federalfederal tax, with certain exceptions, on our netREIT taxable income that is distributed to our stockholders.
Our principal offices are located at 2795 East Cottonwood Parkway, Suite 300, Salt Lake City, Utah 84121, telephone number (801) 365-4600.
Our internet address is www.extraspace.com. We file our annual report on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, and all amendments to those reports with the Securities and Exchange Commission (the “SEC”). You may obtain copies of these documents by visiting the SEC’s Public Reference Room at 100 F Street, N.E., Washington, D.C. 20549, by calling the SEC at 1-800-SEC-0330 or by accessing the SEC’s website at www.sec.gov. In addition, as soon as reasonably practicable after such materials are furnished to the SEC, we make copies of these documents available to the public free of charge through our website at www.extraspace.com, or by contacting our Secretary at our principal offices, which are located at 2795 East Cottonwood Parkway, Suite 300, Salt Lake City, Utah 84121, telephone number (801) 365-4600.
Management
Membersthe Investor Relations section of our executive management team have significant experience in all aspectswebsite.
Self-Storage Operations
We own, operate, manage, provide lending to, acquire, develop and redevelop self-storage properties (“stores”). We operate and manage our business by evaluating the operating performance of the self-storage industry. Our executive management teamproperties for our entire portfolio which includes wholly-owned stores, stores in which we have a partial ownership interest and their years of industry experience are as follows: Joseph D. Margolis, Chief Executive Officer, 13 years; Scott Stubbs, Executive Vice President and Chief Financial Officer, 17 years; Samrat Sondhi, Executive Vice President and Chief Operating Officer, 14 years; Gwyn McNeal, Executive Vice President and Chief Legal Officer, 12 years; James Overturf, Executive Vice President and Chief Marketing Officer, 19 years; and Kenneth M. Woolley, Executive Chairman, 39 years.
Our executive management team and board of directors have an ownership position in the Company with executive officers and directors owning approximately 4,059,669 shares or 3.2% of our outstanding common stock as of February 21, 2018.
Industry & Competition
managed stores. Stores offer month-to-month rental of storage space for personal or business use. Tenants typically rent fully enclosed spaces that vary
As of December 31, 2023, we owned and/or operated 3,714 stores in size42 states, and typically rangeWashington, D.C., comprising approximately 283 million square feet of net rentable space in approximately 2.6 million units.
Other Operations
Our tenant reinsurance activities include the reinsurance of risks relating to the loss of goods stored by tenants in our stores. Our customers have the option of purchasing insurance from 5 feet by 5 feeta non-affiliated insurance company to 20 feet by 20 feet, with an interior height of 8 feet to 12 feet. Tenants have responsibility for moving their items into and out of their units. Stores generally have on-site managers who supervise and run the day-to-day operations, providing tenants with assistance as needed.


Self-storage provides a convenient way for individuals and businesses to store their possessions due to life changes, or simply because of a need for storage space. The mix of residential tenants using a store is determined by a store’s local demographics and often includes people who are experiencing life changes such as downsizing their living space or others who are not yet settled into a permanent residence. Items that tenants place in self-storage are typically furniture, household items and appliances. Commercial tenants tend to include small business owners who require easy and frequent accesscover certain losses to their goods records, inventory or storagestored at our facilities, as well as those we manage for seasonal goods.
Our research has shown that tenants choose a store based primarily on the conveniencethird parties. A wholly-owned, consolidated subsidiary fully reinsures such policies and thereby assumes all risk of the site to their home or business, making high-density, high-traffic population centers ideal locations for stores. A store’s price, perceived security, cleanliness,losses under these policies and the general professionalism of the site managers and staff are also contributing factors to a site’s ability to successfully secure rentals. Although most stores are leased to tenants on a month-to-month basis, tenants tend to continue their leases for extended periods of time.
The self-storage business is subject to seasonal fluctuations. A greater portion of revenues and profits are realized from May through September. Historically, our highest level of occupancy has been at the end of July, while our lowest level of occupancy has been in late February and early March.
Since inception in the early 1970’s, the self-storage industry has experienced significant growth. The self-storage industry has also seen increases in occupancy over the past several years. Accordingreceives reinsurance premiums substantially equal to the Self-Storage Almanac (the “Almanac”), in 2012,premiums collected from our tenants, from the national average physical occupancy rate was 85.0%non-affiliated insurance company.
As of net rentable square feet, comparedDecember 31, 2023, we managed 1,337 stores for third party owners. Our management business enables us to an average physical occupancy rate of 92.8% in 2017.
The industry is also characterized by fragmented ownership. According to the Almanac,generate increased revenues through management fees as of the end of 2017, the top ten self-storage companies in the United States operated approximately 15.8% of the total U.S. stores,well as expand our geographic footprint, data sophistication and the top 50 self-storage companies operated approximately 19.2% of the total U.S. stores.scale with little capital investment. We believe this fragmentation will contributeexpanded footprint enables us to continued consolidation at some levelreduce our operating costs through economies of scale. In addition, our management business is a potential future acquisition pipeline.
We have a bridge lending program, under which we provide financing to third party self storage owners for operating properties that we manage. This program helps us increase our management business, create additional potential future acquisition opportunities, and strengthen our relationships with partners, all while generating interest and fee income. We generally originate mortgage loans and mezzanine loans, with the intent to sell a portion of the mortgage loans to third parties, while retaining our interests in the future.mezzanine loans. As of December 31, 2023, the total balance of bridge loans receivable was $594.7 million.
Recently we have encountered competition when we have sought to acquire existing operating stores, especially for brokered portfolios. Competitive bidding practices have been commonplace between both public and private entities, and this will likely continue. We believe that we are well positioned to compete for acquisitions.
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We arehave made investments in preferred stock of other self-storage companies. These investments benefit us by providing dividend income, increasing our management business, and creating additional potential future acquisition opportunities through relationships with the second largestcompanies in which we invest.
Operating Segments
We operate in two distinct segments: (1) self-storage operatoroperations; and (2) tenant reinsurance. Our self-storage operations activities include rental operations of wholly-owned stores. Tenant reinsurance activities include the reinsurance of risks relating to the loss of goods stored by tenants in our stores. For more information and comparative financial and other information on our reportable business segments, refer to the segment information footnote in the United States. We are onenotes to the consolidated financial statements in Item 8 of five public self-storage REITs along with CubeSmart, National Storage Affiliates, Life Storage and Public Storage.this Form 10-K.
Long-Term Growth and Investment Strategies
Our primary business objectives are to maximize cash flow available for distribution to our stockholders and to achieve sustainable long-term growth in cash flow per share in order to maximize long-term stockholder value both at acceptable levels of risk. We continue to evaluate a range of growth initiatives and opportunities. Our primary strategies include the following:
Maximize the performance of our stores through strategic, efficient and proactive management
We pursue revenue-generating and expense-minimizing opportunities in our operations. Our revenue management team seeksWe seek to maximize revenue by responding to changing market conditions through our advanced technology systems' ability to provide real-time, interactive rental rate and discount management. Our size allows us greater ability than the majority of our competitors to implement more effectivedynamic online marketing programs, which we believe will attract more customers to our stores at a lower net cost.
We continually analyze our portfolio to look for long-term value-enhancing opportunities. We proactively redevelop properties to add units or modify existing unit mix to better meet the demand in a given market and to maximize revenue. We also redevelop properties to reduceextend their effective useful age,life, increase visual appeal, enhance security and to improve brand consistency across the portfolio.
Acquire self storageself-storage stores
Our acquisitions team continues to pursue the acquisition of multi-store portfolios and single stores which can range from fully occupied to various stages of lease-up that we believe can provide stockholder value. We have established a reputation as a reliable, ethical buyer, which we believe enhances our ability to negotiate and close acquisitions. In addition, we believe our status as an UPREIT enables flexibility when structuring deals. We remain a disciplined buyer and only execute acquisitions that we believe will strengthen our portfolio and increase stockholder value.


In addition to the pursuit of stabilizedoperating stores, from time to time we also develop stores from the ground up and provide the construction capital. We also purchase stores at the completion of construction from third party developers, who build to our specifications. These stores purchased at completion of construction (a "Certificate of Occupancy store"), create additional long termlong-term value for our stockholders. We are typically able to acquire these assets at a lower price than a stabilized store, and expect greater long term returns on these stores on average. However, in the short term, these acquisitions cause dilution to our earnings during the two-to-four year period required to lease up the Certificate of Occupancy stores. We expect that this trend will continue in 2018 as we continue to acquire Certificate of Occupancy stores.
Expand our management business
Our management business enables us to generate increased revenues through management fees as well as expand our geographic footprint, data sophistication and scale with little capital investment. We believe this expanded footprint enables us to reduce our operating costs through economies of scale. In addition, we see our management business as a future acquisition pipeline. We pursue strategic relationships with owners whose stores would enhance our portfolio in the event an opportunity arises to acquire such stores.

Financing of Our Long-Term Growth Strategies
Acquisition and Development Financing
As a REIT, we are required to distribute at least 90% of our REIT taxable income to our stockholders. Consequently, we require access to additional sources of capital to fund our growth. We expect to maintain a flexible approach to financing growth. We plan to finance future acquisitions, store development and our bridge loan program through a diverse capital optimization strategy which includes but is not limited to: cash generated from operations, borrowings under our revolving lines of credit (the "Credit Lines"), secured and unsecured financing, equity offerings, joint ventures and the sale of properties.stores.
Credit Lines - We have two credit lines which we primarily use as short termshort-term bridge financing until we obtain longer-term financing through either debt or equity. As of December 31, 2017,2023, our Credit Lines had available capacity of $600.0 million,$2.1 billion, of which $506.0$1,458 million was undrawn.
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Secured and Unsecured Debt - Historically, we have We primarily used traditional secured mortgageuse public bonds, unsecured private placement bonds and unsecured bank term loans to finance store acquisitions and development efforts. More recently, we obtained unsecured bank term loans and issued unsecured private placement bonds. We will continue to utilize a combination of secured and unsecured financing for future store acquisitions and development. As of December 31, 2017,2023, we had $2.8$1.3 billion of secured notes payable and $1.7$9.4 billion of unsecured notes payable outstanding compared to $2.9 billion secured notes payable and $1.0 billion unsecured notes payable outstanding as of December 31, 2016.outstanding.
Equity - We have an active "at the market" (ATM)("ATM") program for selling stock. We sell stock under the ATM program from time to time to raise capital when we believe conditions are advantageous. During the year ended December 31, 2016,2023, we issued 1,381,300didn't issue or sell any shares of common stock through our ATM program and received proceeds of approximately $123.4 million. No shares were issued under the ATM program during the year ended December 31, 2017.stock.
We view equity interests in our Operating Partnership as a potentialanother source of capital that can also provide an attractive tax planning opportunitiesopportunity to sellers of real estate. We issue common and preferred Operating Partnership units to sellers in certain acquisitions. Common Operating Partnership units receive distributions equal to the dividends on common stock, while preferredPreferred Operating Partnership units receive distributions at various negotiated rates. We may issue additional units in the future when circumstances are favorable.
Joint Venture FinancingVentures - As of December 31, 2017,2023, we owned 215474 of our stores through unconsolidated joint ventures with third parties. Our joint venture partners typically provide most of the equity capital required for the acquisition of stores owned in these joint ventures. Most joint venture agreements include buy-sell rights, as well as rights of first offer in connection with the sale of stores by the joint venture. We generally manage the day-to-day operations of the stores owned in these joint ventures and have the right to participate in major decisions relating to sales of stores or financings by the applicable joint venture.venture, but do not control the joint ventures.


Sale of Properties - We have not historically sold a high volume of stores, as we generally believe we are able to optimize the cash flow from stores through continued operations. However, we may sell more stores or interests in stores in the future in response to changing economic, financial or investment conditions. For the yearsyear ended December 31, 2017 and 2016,2023, we did not sell any stores. For the year ended December 31, 2022, we sold 36two stores for $38.7 million.
Industry & Competition
We are the largest self-storage operator in the United States. Our three primary competitors who are public self-storage REITs are CubeSmart, National Storage Affiliates and Public Storage.
Stores offer month-to-month rental of storage space for personal or business use. Tenants typically rent fully enclosed spaces that vary in size and typically range from 5 feet by 5 feet to 20 feet by 20 feet, with an interior height of 8 feet to 12 feet. Tenants have responsibility for moving their items into and out of their units. Stores generally have on-site managers who supervise and run the day-to-day operations, providing tenants with assistance as needed.
Self-storage provides a convenient way for individuals and businesses to store their possessions due to life changes, or simply because of a need for storage space. The mix of residential tenants using a store is determined by a store’s local demographics and often includes people who are experiencing life changes such as downsizing their living space or others who are not yet settled into a joint venturepermanent residence. Items that tenants place in self-storage are typically furniture, household items and nineappliances. Commercial tenants tend to include small business owners who require easy and frequent access to their goods, records, inventory or storage for seasonal goods.
Our research has shown that tenants choose a store based primarily on price and the convenience of the site to their home or business, making high-density, high-traffic population centers ideal locations for stores. A store’s visibility on the internet, perceived security, cleanliness, and the general professionalism of the store managers and staff are also contributing factors to a store’s ability to successfully secure rentals. Although most stores are leased to tenants on a month-to-month basis, tenants tend to continue their leases for extended periods of time.
The self-storage business is subject to seasonal fluctuations. A greater portion of revenues and profits are typically realized from May through September. Historically, our highest level of occupancy has been at the end of July, while our lowest level of occupancy has been in late February and early March.
The self-storage industry is a mature industry with average occupancies that are typically at or above 90%. According to the Self-Storage Almanac (the “Almanac”), the national average physical occupancy rate was 92.8% of net rentable square feet in 2017, compared to an outside party, respectively,average physical occupancy rate of 91.6% in 2023. Our average occupancy for wholly-owned stores for 2023 was 92.0%.
The industry is also characterized by fragmented ownership. According to the Almanac, as of the end of 2023, the top ten self-storage companies in the United States operated approximately $295.0 million26.1% of the total U.S. stores, and $30.3 million.the top 50 self-storage
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companies operated approximately 32.9% of the total U.S. stores. We believe this fragmentation will contribute to continued consolidation at some level in the future.
We believe that we are well positioned to compete for acquisitions. We have encountered competition when we have sought to acquire existing operating stores, especially for brokered portfolios. Competitive bidding practices have been commonplace between both public and private entities, and this will likely continue.
Regulation
Generally, stores are subject to various laws, ordinances and regulations, including regulations relating to lien sale rights and procedures and the Americans with Disabilities Act of 1990. Changes in any of these laws or regulations, as well as changes in laws, such as the Comprehensive Environmental Response and Compensation Liability Act, which increase the potential liability for environmental conditions or circumstances existing or created by tenants or others on stores, or laws affecting development, construction, operation, limitations on rent increases due to state of emergency or similar orders, upkeep, safety and taxation may result in significant unanticipated expenditures, loss of stores or other impairments to operations, which would adversely affect our financial position, results of operations or cash flows. In addition, noncompliance with any of these laws, ordinances or regulations could result in the imposition of fines or an award of damages to private litigants and also could require substantial capital expenditures to ensure compliance.
Insurance activities are subject to state insurance laws and regulations as determined by the particular insurance commissioner for each state in accordance with the McCarran-Ferguson Act, and are subject to the Gramm-Leach-Bliley Act and the privacy regulations promulgated by the Federal Trade Commission pursuant thereto. Store management activities may be subject to state real estate brokerage laws and regulations as determined by the particular real estate commission for each state. Our collection and processing of personal information may be subject to various data privacy and security laws, which govern the collection, use, disclosure of personal information and are constantly evolving, may conflict with each other to complicate compliance efforts and can result in investigations, proceedings, or actions that lead to significant civil and/or criminal penalties and restrictions on data processing. Changes in any of the laws governing our conduct could have an adverse impact on our ability to conduct our business or could materially affect our financial position, results of operations or cash flows.
Employees
Human Capital

At Extra Space, our culture is driven by our belief that our people are a key driver in our success. We believe that if we focus on attracting, developing, and retaining diverse top talent at all levels of the organization, our employees will take care of our customers and drive growth for our shareholders.

As of December 31, 2017,2023, we had 3,3807,618 employees and believe our relationship with our employees is good.Our employees are not represented by a collective bargaining agreement. In 2023, we invited our employees to participate in an employee satisfaction survey and achieved an overall satisfaction score of 79% with over 95% of our employees participating in our survey.

Compensation, Health and Well Being

We offer competitive health benefits and encourage our employees to participate in employee health and wellness programs. Over 56% of our employees who are enrolled in our health plan participate in these programs, which are designed to improve employees' overall health. We offer individualized counseling to our employees to assist them with their journey towards better health and financial wellness. We also offer other health-oriented benefits such as smoking cessation programs and a fitness program that allows for reimbursements to employees for expenses incurred relating to fit-friendly activities, sports or exercise equipment. We also provide employees access to a network of childcare and elder care providers.

Training and Development

In order to attract and retain diverse top talent, we believe strongly that development is a continuous journey throughout the employee's career. We provide formal development programs which are available to employees who are ready for an intense structured experience. In 2023, we invested in training and development for our employees, which included leadership training, communication training, individual development plans, site manager training and mentorship programs. Our field employees received an average of 22 hours of training and each new hire received an average of 82 hours of training in 2023.

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Diversity, Equity and Inclusion

We value diversity, equity and inclusion and undertake a wide spectrum of initiatives to attract and retain a diverse workforce. During 2023, we expanded participation in our employee resource groups that provide our employees a space to build community by celebrating their culture, providing mentoring opportunities and developing educational content for Extra Space. We will continue to implement and pursue diversity, equity and inclusion initiatives and tracking that allow us to attract and retain diverse top talent, improve employee engagement, increase innovation and customer insight and enhance the quality of our decision making. Newsweek recently recognized us as one of America's Greatest Workplaces for Diversity 2024.

Our employee population is approximately 49% female and approximately 44% have self-identified as people of color: Black or African American (18%), Hispanic or Latino (18%), Asian (2.4%), of two or more races (4.2%), Native American (0.7%), and Pacific Islander (0.5%).

We believe that our emphasis on training and development, employee safety, employee health and well-being, and a commitment to diversity, equity and inclusion leads to an increase in employee productivity and positions us to attract and retain top diverse talent.
Item 1A.     Risk Factors
An investment in our securities involves various risks. All investors should carefully consider the following risk factors in conjunction with the other information contained in this Annual Report before trading in our securities. If any of the events set forth in the following risks actually occur, our business, operating results, prospects and financial condition could be harmed.
Our performance is subject to risks associated with real estate investments. We are a real estate company that derives our income from the operation of our stores. There are a number of factors that may adversely affect the income that our stores generate, including the following:
Risks Related to Our Stores and Operations
Adverse economic or other conditions in the markets in which we do business could negatively affect our occupancy levels and rental rates and therefore our operating results.
Our revenues and net operating income can be negatively impacted by general economic factors and other conditions that lead to a reduction in demand for rental space in the markets in which we operate. Our operations, revenues and operating income may be adversely impacted by, for example, increases in unemployment rates, rising interest rates, changing demographics, decreases in the volume of housing market transactions, recessions, perceptions about the safety of our stores, changes in local zoning laws, consequences from climate change, public health emergencies, as well as earthquakes, hurricanes and other natural disasters, terrorist acts, civil disturbances or acts of war.
If we are unable to promptly re-let our units or if the rates upon such re-letting are significantly lower than expected, our business and results of operations would be adversely affected.
VirtuallyNearly all of our leases are on a month-to-month basis. Any delay in re-letting units as vacancies arise would reduce our revenues and harm our operating results. In addition, lower than expected rental rates upon re-letting could adversely affect our revenues and impede our growth.


Uninsured losses or losses in excess of our insurance coverage could adversely affect our financial condition and our cash flow.
We maintain comprehensive property and casualty insurance policies, including liability, fire, flood, earthquake, wind (as we deem necessary or as required by our lenders), umbrella coverage and rental loss insurance with respect to our stores. Certain types of losses, however, may be either uninsurable, not economically insurable, or coverage may be excluded on certain policies, such as losses due to earthquakes, hurricanes, tornadoes, riots, acts of war, terrorism, or social engineering. Should an uninsured loss occur, we could lose both our investment in and anticipated profits and cash flow from a store. In addition, if any such loss is insured, we may be required to pay significant amounts on any claim for recovery of such a loss prior to our insurer being obligated to reimburse us for the loss, or the amount of the loss may exceed our coverage for the loss. As a result, our operating results may be adversely affected.
Legal disputes, settlement and defense costs could have an adverse effect on our operating results.
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From time to time we have to make monetary settlements or defend actions or arbitration (including class actions) to resolve tenant, employment-related or other claims and disputes. Settling any such liabilities could negatively impact our operating results and cash available for distribution to stockholders, and could also adversely affect our ability to sell, lease, operate or encumber affected properties.
Our tenant reinsurance business is subject to significant governmental regulation, which may adversely affect our results.
Our tenant reinsurance business is subject to significant governmental regulation. The regulatory authorities generally have broad discretion to grant, renew and revoke licenses and approvals, to promulgate, interpret and implement regulations, and to evaluate compliance with regulations through periodic examinations, audits and investigations of the affairs of insurance providers. As a result of regulatory or private action in any jurisdiction, we may be temporarily or permanently suspended from continuing some or all of our reinsurance activities, or otherwise fined or penalized or suffer an adverse judgment, which could adversely affect our business and results of operations.
Environmental compliance costs and liabilities associated with operating our stores may adversely affect our results of operations.
Under various U.S. federal, state and local laws, ordinances and regulations, a current or previous owner, developer or operator of real estate may be liable for the costs of removal or remediation of certain hazardous or toxic substances, which could be substantial. Such laws often impose liability without regard to whether the owner or operator knew of, or was responsible for, the release or presence of such hazardous substances. From time to time, we may acquire properties, or interests in properties, with known adverse environmental conditions for which we believe that the environmental liabilities associated with these conditions are quantifiable and that the acquisition will yield a superior risk-adjusted return.
Costs associated with complying with the Americans with Disabilities Act of 1990 may result in unanticipated expenses.

Under the ADA, places of public accommodation are required to meet certain federal requirements related to access and use by disabled persons. A number of additional U.S. federal, state and local laws may also require modifications to our stores, or restrict certain further renovations of the stores, with respect to access thereto by disabled persons. If one or more of our stores is not in compliance with the ADA or other legislation, then we would be required to incur additional costs to bring the facility into compliance.
We face continuing risks and costs in connection with integrating the Life Storage business following our business combination with Life Storage, Inc. (“Life Storage”) in July 2023, and we may not be able to successfully realize the synergies and other benefits of the acquisition or do so within the anticipated time frame.
The acquisition of Life Storage involves the combination of two companies that previously operated as independent public companies and their respective operating partnerships. Although we believe the combined company has benefited from the elimination of duplicative costs associated with supporting a public company platform, we have devoted, and will continue to devote, significant management attention and resources to integrating the operations of Extra Space and Life Storage. Although much of Life Storage’s business is integrated, we may encounter costs and difficulties in the continuing integration process include the following:
the inability to fully combine the operations of Life Storage into our business, including the integration of employees, customer records and maintaining cybersecurity protections, in a manner that permits us to achieve the cost savings anticipated to result from the transaction;
the inability to dispose of former Life Storage assets or operations that we may desire to dispose of;
the difficulties of operating separate brands and the costs of potentially rebranding Life Storage stores over an extended period of time;
the complexities associated with managing the combined businesses out of different locations and integrating personnel from the two companies;
the failure to retain key employees of either of the two companies;
potential unknown liabilities and unforeseen increased expenses, delays or regulatory conditions associated with the Life Storage business; and
performance shortfalls as a result of the diversion of management’s attention caused by completing the Life Storage transaction and integrating the companies’ operations.

For all these reasons, it is possible that the continuing integration process could result in the distraction of our management and ongoing business or inconsistencies in our operations, services, standards, controls, procedures and policies, any of which could adversely affect our ability to maintain relationships with customers, vendors and employees or to achieve the anticipated benefits of the Life Storage transaction, or could otherwise adversely affect our business and financial results.
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There is significant competition among self-storage operators and from other storage alternatives.
Competition in the local markets in which many of our stores are located is significant and has affected our occupancy levels, rental rates and operating expenses. Development of self-storage facilities has increased in recent years, which has intensified competition, and we expect it will continue to do so as newly developed facilities are opened. Development of self-storage facilities by other operators could continue to increase in the future. Actions by our competitors may decrease or prevent increases in our occupancy and rental rates, while increasing our operating expenses, which could adversely affect our business and results of operations.
We may not be successful in identifying and consummating suitable acquisitions that meet our criteria, which may impede our growth.
Our ability to expand through acquisitions is integral to our business strategy and requires us to identify suitable acquisition candidates or investment opportunities that meet our criteria and are compatible with our growth strategy. We may not be successful in identifying suitable stores or other assets that meet our acquisition criteria or in consummating acquisitions


or investments on satisfactory terms or at all. Failure to identify or consummate acquisitions will slow our growth, which could in turn adversely affect our stock price.

Our ability to acquire stores on favorable terms and successfully integrate and operate them may be constrained by the following significant risksrisks:

competition from local investors and other real estate investors with significant capital, including other publicly-traded REITs and institutional investment funds;
competition from other potential acquirers may significantly increase the purchase price which could reduce our profitability;
the inability to achieve satisfactory completion of due diligence investigations and other customary closing conditions; and
we may acquire stores subject to liabilities without any recourse, or with only limited recourse, with respect to unknown liabilities such as liabilities for clean-up of undisclosed environmental contamination, claims by persons dealing with the former owners of the stores and claims for indemnification by general partners, directors, officers and others indemnified by the former owners of the stores.
We and our vendors rely on information technology, in our operations, and any material failure, inadequacy, interruption or security failure ofincident affecting that technology could harm our business.business, results of operations and financial condition.
We rely on information technology networks and systems, including the Internet, to process, transmit and store electronicconfidential information, and to manage or support a variety of business processes, including financial transactions and records, personally identifiableintellectual property, proprietary business information, and personal information of our employees, contractors and customers, such as tenant and lease data.data (collectively, "Confidential Information"). We purchase some of ouralso rely on third-party vendors for information technology from vendors, on whom our systems depend. We rely onand services, including commercially available systems, software, tools and monitoring to provide security for the processing, transmission and storage of confidential tenantConfidential Information. Our information technology systems and those of our third-party service providers, strategic partners and other sensitive information.contractors or consultants are vulnerable to attack and damage or interruption from computer viruses and malware (e.g. ransomware), misconfigurations, bugs or other vulnerabilities, malicious code, natural disasters, terrorism, war, telecommunication and electrical failures, hacking, cyberattacks, phishing attacks and other social engineering schemes, employee theft or misuse, human error fraud, denial or degradation of service attacks, and sophisticated nation-state and nation-state-supported actors. Although we have taken steps to protect the security of our information technology systems and the data maintained in those systems,Confidential Information, it is possible that our cybersecurity risk management program and processes, including our policies, safety and security measures will not be fully implemented, complied with or able to prevent thesuch systems’ improper functioning or damage, or the improper accessaccessing or disclosure of personally identifiable informationConfidential Information, from such as insecurity breaches, disruptions, and shutdowns. The costs associated with the eventinvestigation, remediation and potential notification of cyber-attacks. Securitysuch breaches including physical or electronic break-ins, computer viruses, attacks by hackersto counter-parties and similar breaches, can create system disruptions, shutdowns or unauthorized disclosuredata subjects could be material.
We and certain of confidential information.our service providers are, from time to time, subject to cyberattacks and security incidents. While to date, we do not believe that we have not experienced aany significant system failure, accident or security breach, this risk has generally increased as the number, intensity and sophistication of such breaches and attempted breaches from around the world have increased. Furthermore, because the technologies used to obtain unauthorized access to, or to sabotage or disrupt, systems change frequently and often are not recognized until launched against a target, we may be unable to anticipate these techniques or implement adequate preventative measures. We may also experience security breaches that may remain undetected for an extended period. Even if identified, we may be unable to adequately investigate or remediate incidents or breaches due to attackers increasingly using tools and techniques that are designed to circumvent controls, to avoid detection, and to remove or obfuscate forensic evidence. Any failure to maintain the proper function,functioning, confidentiality, security and availability of our or our third-party service providers' information technology systems or our Confidential Information could interrupt our
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operations, damage our reputation, divert significant management attention and resources to remedy any damages that result, subject us to liability and claims or regulatory investigations and enforcement actions, which could result in, among other things, fines and penalties, and have a material adverse effect on our business, financial condition and results of operations. Further, our insurance coverage may not be sufficient to cover the financial, legal, business or reputational losses that may result from an interruption or breach of our systems.
Actual or perceived failures to comply with laws and regulations relating to data privacy and protection, could adversely affect our business, results of operations, and our financial condition.
In the United States, both federal and various state governments have adopted, or are considering, laws, guidelines or rules for the collection, distribution, use, storage and security of personal information, and we are or may become subject to such obligations with respect to information collected from or about our employees, contractors or customers. For example, the California Consumer Privacy Act, as amended by the California Privacy Rights Act, requires certain businesses that process personal information of California residents to, among other things: provide certain disclosures to California residents regarding the business’s collection, use, and disclosure of their personal information; receive and respond to requests from California residents to access, delete, and correct their personal information, or to opt-out of certain disclosures of their personal information; and enter into specific contractual provisions with service providers that process California resident personal information on the business’s behalf.
Although we work to comply with applicable laws, regulations and standards, our contractual obligations and other legal obligations, these requirements are evolving and may be modified, interpreted and applied in an inconsistent manner from one jurisdiction to another, may conflict with one another or other legal obligations with which we must comply, may require us to incur significant costs, implement new processes, or otherwise affect our ability to use and disclose the information we collect, which could affect our results of operations, business, and financial condition. Any failure or perceived failure by us or our employees, representatives, contractors, consultants, collaborators, or other third parties to comply with such requirements or adequately address privacy and security concerns, even if unfounded, could result in additional cost and liability to us, damage our reputation, and adversely affect our business, financial condition and results of operations.
Our property taxes could increase due to reassessment or property tax rate changes.
Real property taxes on our properties may increase as our properties are reassessed by taxing authorities or as property tax rates change. Therefore, the amount of property taxes we are required to pay could increase substantially from the property taxes we currently pay or have paid in the past, including on a retroactive basis. If our property taxes we pay increase, our cash flow would be adversely impacted, and our ability to pay any expected dividends to our stockholders and unitholders could be adversely affected.
Public health emergencies, and measures intended to prevent the spread of a public health emergency, could adversely affect our results of operations.
We face risks related to public health emergencies, such as epidemics and pandemics that could materially and adversely impact our results of operations in the future. The impact of a public health emergency, and measures to prevent the spread of a virus or the underlying causes of a health crisis, could lower demand for storage facilities due to, among other things, stay-at home orders and other restrictions which may lead to lower rental rates, reduced late fee collection and impaired ability to hold auctions resulting in higher accounts receivable and bad debt. In addition, a public health emergency could cause general economic and market disruptions which could impair our ability to expand our business, raise capital and adversely affect the value of our securities. Although the self-storage industry has historically been resilient to ordinary market downturns, the impact of pandemics, epidemics or public health emergencies on the U.S. and world economies generally, and on our future results in particular, could be significant and will largely depend on future developments, which are highly uncertain and cannot be predicted.
Climate change may adversely affect our results of operations.
Climate change may cause extreme weather, changes in precipitation and temperature, increases in wild fire risk and rising sea levels in the areas in which we operate which may cause physical damage to our stores or a decrease in demand for rental space in the areas affected by these conditions. Should the impact of climate change be material in nature or occur for lengthy periods of time, our financial condition or results of operations may be adversely affected, and may negatively impact the types and pricing of insurance we are able to procure. In addition, changes in federal, state and local legislation and regulation on climate change could result in increased operating costs (for example, increased utility costs) and/or increased capital expenditures to improve the energy efficiency of our existing stores and could also require us to spend more on our new stores without a corresponding increase in revenue. Further, the impact of climate change may increase the cost of, or make
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unavailable, property insurance or other hazard insurance on terms we find acceptable or necessary to adequately protect our properties.
Risks Related to Our Organization and Structure
Conflicts of interest could arise as a result of our relationship with our Operating Partnership.
Conflicts of interest could arise in the future as a result of the relationships between us and our affiliates, and our Operating Partnership or any partner thereof. Our directors and officers have duties to our Company under applicable Maryland law in connection with their management of our Company. At the same time, we, through our wholly-owned subsidiary, have fiduciary duties, as a general partner, to our Operating Partnership and to the limited partners under Delaware law in connection with the management of our Operating Partnership. Our duties, through our wholly-owned subsidiary, as a general partner to our Operating Partnership and its partners may come into conflict with the duties of our directors and officers to our Company. The partnership agreement of our Operating Partnership does not require us to resolve such conflicts in favor of either our Company or the limited partners in our Operating Partnership. Unless otherwise provided for in the relevant partnership agreement, Delaware law generally requires a general partner of a Delaware limited partnership to adhere to fiduciary duty standards under which it owes its limited partners the highest duties of good faith, fairness, and loyalty and which generally prohibit such general partner from taking any action or engaging in any transaction as to which it has a conflict of interest.
Additionally, the partnership agreement expressly limits our liability by providing that neither we, our direct wholly-owned Massachusetts business trust subsidiary, as the general partner of the Operating Partnership, nor any of our or their trustees, directors or officers, will be liable or accountable in damages to our Operating Partnership, the limited partners or assignees for errors in judgment, mistakes of fact or law or for any act or omission if we, or such trustee, director or officer, acted in good faith. In addition, our Operating Partnership is required to indemnify us, our affiliates and each of our respective trustees, officers, directors, employees and agents to the fullest extent permitted by applicable law against any and all losses, claims, damages, liabilities (whether joint or several), expenses (including, without limitation, attorneys’ fees and other legal fees and expenses), judgments, fines, settlements and other amounts arising from any and all claims, demands, actions, suits or


proceedings, civil, criminal, administrative or investigative, that relate to the operations of the Operating Partnership, provided that our Operating Partnership will not indemnify for (1) willful misconduct or a knowing violation of the law, (2) any transaction for which such person received an improper personal benefit in violation or breach of any provision of the partnership agreement, or (3) in the case of a criminal proceeding, the person had reasonable cause to believe the act or omission was unlawful.


The provisions of Delaware law that allow the common law fiduciary duties of a general partner to be modified by a partnership agreement have not been resolved in a court of law, and we have not obtained an opinion of counsel covering the provisions set forth in the partnership agreement that purport to waive or restrict our fiduciary duties that would be in effect under common law were it not for the partnership agreement.
Our joint venture investments could be adversely affected by our lack of sole decision-making authority.
As of December 31, 2017,2023, we held interests in 215474 operating stores through joint ventures. Some of these arrangements could be adversely affected by our lack of sole decision-making authority, our reliance on co-venturersco-venturers' financial conditions and disputes between us and our co-venturers. We expect to continue our joint venture strategy by entering into moreadditional joint ventures for the purpose of developing new stores and acquiring existing stores. In such event, we would not be in a position to exercise sole decision-making authority regarding the property, partnership, joint venture or other entity. The decision-making authority regarding the stores we currently hold through joint ventures is either vested exclusively with our joint venture partners, is subject to a majority vote of the joint venture partners or is equally shared by us and the joint venture partners. In addition, investments in partnerships, joint ventures or other entities may, under certain circumstances, involve risks not present were a third party not involved, including the possibility that partners or co-venturers might become bankrupt or fail to fund their share of required capital contributions. Partners or co-venturers may have economic or other business interests or goals which are inconsistent with our business interests or goals, and may be in a position to take actions contrary to our policies or objectives. Such investments may also have the potential risk of impasses on decisions, such as a sale, because neither we nor the partner or co-venturer would have full control over the partnership or joint venture. Disputes between us and partners or co-venturers may result in litigation or arbitration that would increase our expenses and prevent our officers and/or directors from focusing their time and efforts on our business. Consequently, actions by or disputes with partners or co-venturers might result in subjecting stores owned by the partnership or joint venture to additional risk. In addition, we may in certain circumstances be liable for the actions of our third-party partners or co-venturers, which could harm our financial condition.
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Certain provisions of Maryland law and our organizational documents, including the stock ownership limit imposed by our charter, may inhibit market activity in our stock and could prevent or delay a change in control transaction.
Our charter, subject to certain exceptions, authorizes our directors to take such actions as are necessary and desirable to preserve our qualification as a REIT and to limit any person to actual or constructive ownership of no more than 7.0% (by value or by number of shares, whichever is more restrictive) of our outstanding common stock or 7.0% (by value or by number of shares, whichever is more restrictive) of our outstanding capital stock. Our board of directors, in its sole discretion, may exempt a proposed transferee from the ownership limit. However, our board of directors may not grant an exemption from the ownership limit to any proposed transferee whose ownership could jeopardize our qualification as a REIT. These restrictions on ownership will not apply if our board of directors determines that it is no longer in our best interests to attempt to qualify, or to continue to qualify, as a REIT. The ownership limit may delay or impede a transaction or a change of control that might involve a premium price for our securities or otherwise be in the best interests of our stockholders. Different ownership limits apply to the family of Kenneth M. Woolley, certain of his affiliates, family members and estates and trusts formed for the benefit of the foregoing; to Spencer F. Kirk, certain of his affiliates, family members and estates and trusts formed for the benefit of the foregoing; and to certain designated investment entities as defined in our charter.
Our board of directors has the power to issue additional shares of our stock in a manner that may not be in the best interest of our stockholders.
Our charter authorizes our board of directors to issue additional authorized but unissued shares of common stock or preferred stock and to increase the aggregate number of authorized shares or the number of shares of any class or series without stockholder approval. In addition, our board of directors may classify or reclassify any unissued shares of common stock or preferred stock and set the preferences, rights and other terms of the classified or reclassified shares. Our board of directors could issue additional shares of our common stock or establish a series of preferred stock that could have the effect of delaying, deferring or preventing a change in control or other transaction that might involve a premium price for our securities or otherwise not be in the best interests of our stockholders.


Our rights and the rights of our stockholders to take action against our directors and officers are limited.
Maryland law provides that a director or officer has no liability in that capacity if he or she performs his or her duties in good faith, in a manner he or she reasonably believes to be in our best interests and with the care that an ordinarily prudent person in a like position would use under similar circumstances. In addition, our charter eliminates our directors’ and officers’ liability to us and our stockholders for money damages except for liability resulting from actual receipt of an improper benefit in money, property or services or active and deliberate dishonesty established by a final judgment and which is material to the cause of action. Our bylaws require us to indemnify our directors and officers for liability resulting from actions taken by them in those capacities to the maximum extent permitted by Maryland law. As a result, we and our stockholders may have more limited rights against our directors and officers than might otherwise exist under common law. In addition, we may be obligated to fund the defense costs incurred by our directors and officers.
Risks Related to Our Debt Financings
Disruptions in the financial markets could affect our ability to obtain debt financing on reasonable terms and have other adverse effects on us.
Uncertainty in the credit and financial markets may negatively impact our ability to access additional debt financing or to refinance existing debt maturities on favorable terms (or at all), which may negatively affect our ability to make acquisitions and fund development projects. Credit and financial markets can be volatile and may be impacted by diminished liquidity and credit availability, rising interest and inflation rates, declines in economic growth and uncertainty about economic stability as well as geopolitical events such as the ongoing conflict between Russia and Ukraine, terrorism, civil unrest and acts of war. A downturn in the credit and financial markets may cause us to seek alternative sources of potentially less attractive financing, and may require us to adjust our business plan accordingly. In addition, these factors may make it more difficult for us to sell stores or may adversely affect the price we receive for stores that we do sell, as prospective buyers may experience increased costs of debt financing or difficulties in obtaining debt financing.
Required payments of principal and interest on borrowings may leave us with insufficient cash to operate our stores or to pay the distributions currently contemplated or necessary to maintain our qualification as a REIT and may expose us to the risk of default under our debt obligations.
As of December 31, 2017,2023, we had approximately $4.6$11.3 billion of outstanding indebtedness. We may incur additional debt in connection with future acquisitions and development. We may borrow under our Credit Lines or borrow new funds to finance these future stores. Additionally, we do not anticipate that our internally generated cash flow will be adequate to repay our existing indebtedness upon maturity and, therefore, we expect to repay our indebtedness through refinancings and equity
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and/or debt offerings. Further, we may need to borrow funds in order to make cash distributions to maintain our qualification as a REIT or to make our expected distributions. To qualify as a REIT, we generally must distribute to our stockholders at least 90% of our netREIT taxable income each year, determined without regard to the dividends paid deduction and excluding net capital gains, and we are subject to U.S. federal corporate income tax to the extent that we distribute less than 100% of our netREIT taxable income each year.year, determined without regard to the deduction for dividends paid and including net capital gains.
If we are required to utilize our Credit Lines for purposes other than acquisition activity, this will reduce the amount available for acquisitions and could slow our growth. Therefore, our level of debt and the limitations imposed on us by our debt agreements could have significant adverse consequences, including the following:
our cash flow may be insufficient to meet our required principal and interest payments;
we may be unable to borrow additional funds as needed or on favorable terms, including to make acquisitions or to continue to make distributions required to maintain our qualification as a REIT;
we may be unable to refinance our indebtedness at maturity or the refinancing terms may be less favorable than the terms of our original indebtedness;
because a portion of our debt bears interest at variable rates, an increase in interest rates could materially increase our interest expense;
we may be forced to dispose of one or more of our stores, possibly on disadvantageous terms;
after debt service, the amount available for cash distributions to our stockholders is reduced;
we may experience increased vulnerability to economic and industry downturns, reducing our ability to respond to changing business and economic conditions;
we may default on our obligations and the lenders or mortgagees may foreclose on our stores that secure their loans and receive an assignment of rents and leases and/or enforce our guarantees;
we may violate restrictive covenants in our loan documents, which would entitle the lenders to accelerate our debt obligations; and
our default under any one of our mortgage loans with cross-default or cross-collateralization provisions could result in a default on other indebtedness or result in the foreclosures of other stores.


Increases in interest rates may increase our interest expense and adversely affect our cash flow and our ability to service
our indebtedness and make cash distributions to our stockholders.
As of December 31, 2017,2023, we had approximately $4.6$11.3 billion of debt outstanding, of which approximately $1.2$3.0 billion, or 25.3%26.6% was subject to variable interest rates (excluding debt with interest rate swaps). This variable rate debt had a weighted average interest rate of approximately 3.1%6.6% per annum. Increases in interest rates on this variable rate debt would increase our interest expense, which could harm our cash flow and our ability to pay cash distributions.
Failure to hedge effectively against interest rate changes may adversely affect our results of operations.
In certain cases we may seek to manage our exposure to interest rate volatility by using interest rate hedging arrangements. Hedging involves risks, such as the risk that the counterparty may fail to honor its obligations under an arrangement. Failure to hedge effectively against interest rate changes may adversely affect our financial condition, results of operations and ability to make cash distributions to our stockholders.
Our existing indebtedness contains covenants that limit our operating flexibility and failure to comply with all covenants in our debt agreements could materially and adversely affect us.
Our debt agreements, including our credit agreement governing the revolving credit facility and term loans and the indentures governing our public traded notes, contain various financial and other covenants that we and our operating partnership must comply with including total debt to asset ratios, secured debt to total asset ratios, adjusted EBITDA to fixed charged ratios and minimum ratios of unencumbered assets to unsecured debt which we must maintain.
These covenants may limit our operating flexibility and could prevent us from taking advantage of business opportunities as they arise, growing our business or competing effectively. Our ability to meet these covenants may be affected by events beyond our control, and we may be unable to maintain compliance with these covenants. If we fail to meet these requirements, we may be unable to obtain waivers from the lenders or indenture trustee, as applicable, or amend the covenants.
A breach of any of the covenants or other provisions in our debt agreements could result in an event of default, which if not cured or waived, could result in such debt becoming due and payable, either automatically or after an election to accelerate by the required percentage of the holders of the indebtedness or by an agent for the holders of the indebtedness. This, in turn, could
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cause our other debt, including the notes and our revolving credit facility, to become due and payable as a result of cross-default or cross-acceleration provisions contained in the agreements governing the other debt and permit certain of our lenders to foreclose on our assets, if any, that secure this debt. In the event that some or all of our debt is accelerated and becomes immediately due and payable, we may not have the funds to repay, or the ability to refinance our debt.
A downgrade in our credit ratings could materially adversely affect our business and financial condition and the market value of our outstanding notes.
The credit ratings assigned to the outstanding publicly-traded notes and other debt securities of the operating partnership could change based upon, among other things, our results of operations and financial condition. These ratings are subject to ongoing evaluation by credit rating agencies, and we cannot assure you that any rating will not be changed or withdrawn by a rating agency in the future if, in its judgment, circumstances warrant. Moreover, these credit ratings are not recommendations to buy, sell or hold the notes or any other securities. If any of the credit rating agencies that have rated the outstanding notes or other debt securities of the operating partnership downgrades or lowers its credit rating, or if any credit rating agency indicates that it has placed any such rating on a so-called “watch list” for a possible downgrading or lowering or otherwise indicates that its outlook for that rating is negative, it could have a material adverse effect on our costs and availability of capital, which could in turn have a material adverse effect on our financial condition, results of operations, cash flows and our ability to satisfy our debt service obligations (including payments on the outstanding notes) and to make dividends and other distributions to our security holders and could also have the material adverse effect on the market value of the outstanding notes.
Risks Related to Qualification and Operation as a REIT
Dividends payable by REITs may be taxed at higher rates.
Dividends payable by REITs may be taxed at higher rates than dividends of non-REIT corporations. The maximum U.S. federal income tax rate for qualified dividends paid by domestic non-REIT corporations to U.S. stockholders that are individuals, trust or estates is generally 20%. Dividends paid by REITs to such stockholders are generally not eligible for that rate, but under the 2017 Tax Legislation (defined below),current tax law, such stockholders may deduct up to 20% of ordinary dividends (i.e., dividends not designated as capital gain dividends or qualified dividend income) received from a REIT for taxable years beginning after December 31, 2017 and before January 1, 2026. Although this deduction reduces the effective tax rate applicable to certain dividends paid by REITs, such tax rate may still be higher than the tax rate applicable to regular corporate qualified dividends. This may cause investors to view REIT investments as less attractive than investments in non-REIT corporations, which in turn may adversely affect the value of stock of REITs, including our stock. In addition, the relative attractiveness of real estate in general may be adversely affected by the favorable tax treatment given to corporate dividends, which could negatively affect the value of our stores.
Possible legislative or other actions affecting REITs could adversely affect our stockholders.
The rules dealing with U.S. federal income taxation are constantly under review by persons involved in the legislative process and by the IRSInternal Revenue Service ("IRS") and the U.S. Department of the Treasury. Changes to the tax laws, with or without retroactive application, could adversely affect our investors or us in ways we cannot predict. New legislation, Treasury Regulations, administrative interpretations or court decisions could significantly and negatively affect our ability to qualify as a REIT, the U.S. federal income tax consequences of such qualification, or the U.S. federal income tax consequences of an investment in us. Also, the law relating to the tax treatment of other entities, or an investment in other entities, could change, making an investment in such other entities more attractive relative to an investment in a REIT.

Recently enacted U.S. tax legislation (the “2017 Tax Legislation”) has significantly changed the U.S. federal income taxation of U.S. businesses and their owners, including REITs and their stockholders. Changes made by the 2017 Tax Legislation that could affect us and our stockholders include:

permanently eliminating the progressive corporate tax rate structure, which previously imposed a maximum corporate tax rate of 35%, and replacing it with a corporate tax rate of 21%;
permitting a deduction for certain pass-through business income, including dividends received by our stockholders from us that are not designated by us as capital gain dividends or qualified dividend income, which will allow individuals, trusts and estates to deduct up to 20% of such amounts for taxable years beginning after December 31, 2017 and before January 1, 2026;
reducing the highest rate of withholding with respect to our distributions to non-U.S. stockholders that are treated as attributable to gains from the sale or exchange of U.S. real property interests from 35% to 21%;
limiting our deduction for net operating losses arising in taxable years beginning after December 31, 2017 to 80% of REIT taxable income (determined without regard to the dividends paid deduction);
generally limiting the deduction for net business interest expense in excess of 30% of a business’s “adjusted taxable income,” except for taxpayers that engage in certain real estate businesses (including most equity REITs) and elect out of this rule (provided that such electing taxpayers must use an alternative depreciation system with longer depreciation periods); and
eliminating the corporate alternative minimum tax.



Many of these changes are effective immediately, without any transition periods or grandfathering for existing transactions. The legislation is unclear in many respects and could be subject to potential amendments and technical corrections, as well as interpretations and implementing regulations by the Treasury and IRS, any of which could lessen or increase the impact of the legislation. In addition, it is unclear how these U.S. federal income tax changes will affect state and local taxation, which often uses federal taxable income as a starting point for computing state and local tax liabilities. While some of the changes made by the tax legislation may adversely affect us in one or more reporting periods and prospectively, other changes may be beneficial on a going forward basis. We are continuing to work with our tax advisors to determine the full impact that the recent federal tax reform legislation, which we refer to herein as the 2017 Tax Legislations, as a whole will have on us.
Our failure to qualify as a REIT would have significant adverse consequences to us and the value of our stock.
We believe we operate in a manner that allows us to qualify as a REIT for U.S. federal income tax purposes under the Internal Revenue Code. If we fail to qualify as a REIT or lose our qualification as a REIT at any time, we will face serious tax consequences that would substantially reduce the funds available for distribution for each of the years involved because:
 
we would not be allowed a deduction for distributions to stockholders in computing our taxable income and would be subject to U.S. federal corporate income tax on our taxable income;
we also could be subject to thea U.S. Federalfederal alternative minimum income tax for taxable years prior to 2018 and possibly increased state and local taxes; and
unless we are entitled to relief under applicable statutory provisions, we could not elect to be taxed as a REIT for four taxable years following a year during which we were disqualified.
In addition, if we fail to qualify as a REIT, we will not be required to make distributions to stockholders, and all distributions to stockholders will be subject to tax as regular corporate dividends to the extent of our current and accumulated
16



earnings and profits. This means that our U.S. individual stockholders would be taxed on our dividends at capital gains rates, and our U.S. corporate stockholders would be entitled to the dividends received deduction with respect to such dividends, subject, in each case, to applicable limitations under the Internal Revenue Code. If we fail to qualify as a REIT for U.S. federal income tax purposes and are able to avail ourselves of one or more of the relief provisions under the Internal Revenue Code in order to maintain our REIT status, we may nevertheless be required to pay penalty taxes of $50,000 or more for each such failure. As a result of all these factors, our failure to qualify as a REIT also could impair our ability to expand our business and raise capital, and could adversely affect the value of our securities.
Qualification as a REIT involves the application of highly technical and complex Internal Revenue Code provisions for which there are only limited judicial and administrative interpretations. The complexity of these provisions and of the applicable Treasury regulations that have been promulgated under the Internal Revenue Code is greater in the case of a REIT that, like us, holds its assets through a partnership. The determination of various factual matters and circumstances not entirely within our control may affect our ability to qualify as a REIT. In order to qualify as a REIT, we must satisfy a number of requirements, including requirements regarding the composition of our assets, the sources of our gross income and the owners of our stock. Our ability to satisfy the asset tests depends upon our analysis of the fair market value of our assets, some of which are not susceptible to precise determination, and for which we will not obtain independent appraisals. Our ability to satisfy the income tests depends on the sources and amounts of our gross income, which we may not be able to control. Also, we must make distributions to stockholders aggregating annually at least 90% of our netREIT taxable income, determined without regard to the dividends paid deduction and excluding net capital gains, and we will be subject to U.S. federal corporate income tax to the extent we distribute less than 100% of our netREIT taxable income, without regard to the dividends paid deduction and including net capital gains.
We own and may acquire direct or indirect interests in entities that have elected or will elect to be taxed as REITs under the Internal Revenue Code (each, a “Subsidiary REIT”). A Subsidiary REIT is subject to the various REIT qualification requirements and other limitations described herein that are applicable to us. If a Subsidiary REIT were to fail to qualify as a REIT, then (i) that Subsidiary REIT would become subject to U.S. federal income tax, (ii) shares in such Subsidiary REIT would cease to be qualifying assets for purposes of the asset tests applicable to REITs, and (iii) it is possible that we would fail certain of the asset tests applicable to REITs, in which event we would fail to qualify as a REIT unless we could avail ourselves of certain relief provisions.
In addition, legislation, new regulations, administrative interpretations or court decisions may adversely affect our investors, our ability to qualify as a REIT for U.S. federal income tax purposes or the desirability of an investment in a REIT relative to other investments. Although we believe that we have been organized and have operated in a manner that is intended to allow us to qualify for taxation as a REIT, we can give no assurance that we have qualified or will continue to qualify as a REIT for U.S. federal income tax purposes. We have not requested and do not plan to request a ruling from the Internal Revenue ServiceIRS regarding our qualification as a REIT.


We will pay some taxes, reducing cash available for stockholders.
Even though we qualify as a REIT for U.S. federal income tax purposes, we will be required to pay some U.S. federal, state and local taxes on our income and property. Extra Space Management, Inc. manages stores for our joint ventures and stores owned by third parties. We, jointly with certain corporate subsidiaries, including Extra Space Management, Inc., elected to treat Extra Space Management, Inc.each such subsidiary as a taxable REIT subsidiary (“TRS”) of our Company for U.S. federal income tax purposes. A TRS is a fully taxable corporation,subject to U.S. federal corporate income tax, and may also be limited insubject to state and local taxes, on its ability to deduct interest payments made to us.taxable income. ESM Reinsurance Limited, a wholly-owned subsidiary of Extra Space Management, Inc., generates income from insurance premiums that are subject to U.S. federal income tax and state insurance premiums tax, and pays certain insurance royalties to us. In addition, we will be subject to a 100% penalty tax on certain amounts if the economic arrangements among our tenants, our TRS and us are not comparable to similar arrangements among unrelated parties. Also, if we sell property as a dealer (i.e., to customers in the ordinary course of our trade or business), we will be subject to a 100% penalty tax on any gain arising from such sales. While we do not intend to sell stores as a dealer, the IRS could take a contrary position. To the extent that we are, or any of our TRSTRSs is, required to pay U.S. federal, state or local taxes, we will have less cash available for distribution to stockholders.
Item 1B.     Unresolved Staff Comments
None.
Item 1C.     Cybersecurity
The Company has a cybersecurity risk management program intended to protect the confidentiality, integrity, and availability of our critical systems and information, which includes a cybersecurity Incident Response Plan ("IRP"). Our
17



cybersecurity risk management program is integrated into our overall enterprise risk management program, and shares common methodologies, reporting channels and governance processes that apply across the enterprise risk management program to other legal, compliance, strategic, operational, and financial risk areas.
Cybersecurity Risk Identification and Management
We design and assess our program based on the Center for Internet Security Critical Security Controls Version 8 (CIS V8). This does not imply that we meet any particular technical standards, specifications, or requirements, only that we use the CIS V8 controls as a guide to help us identify, assess, and manage cybersecurity risks relevant to our business.

Our cybersecurity risk management program includes:

third party risk assessments designed to help identify material cybersecurity risks to our critical systems, information, products, services, and our broader enterprise IT environment;
a security team principally responsible for managing (1) our cybersecurity risk assessment processes, (2) our security controls, and (3) our response to cybersecurity incidents;
the use of external service providers, where appropriate, to assess, test or otherwise assist with aspects of our security controls;
end-user testing to assess the effectiveness of our security measures;
cybersecurity awareness training of our employees, incident response personnel, and senior management, including mandatory computer-based training, phishing awareness campaigns, and internal communications;
a cybersecurity IRP that includes procedures designed for identifying, analyzing, containing, remedying and otherwise responding to cybersecurity incidents;
testing of our incident response readiness through Disaster Recovery and Business Continuity Plan exercises; and
a third-party risk management process for service providers, suppliers, and vendors who have access to our critical systems and information.
We have not identified risks from known cybersecurity threats, including as a result of any prior cybersecurity incidents, that have materially affected or are reasonably likely to materially affect us, including our operations, business strategy, results of operations, or financial condition. For more information, see the section titled "Risk Factor-Risks Related to Our Stores and Operations-We and our vendors rely on information technology, and any material failure, inadequacy, interruption or security incident affecting that technology could harm our business, results of operations and financial condition."
Our management team, including our Senior Vice President of Information Systems and Vice President of Information Security and Compliance, is responsible for assessing and managing our material risks from cybersecurity threats. The team has primary responsibility for our overall cybersecurity risk management program and supervises both our internal cybersecurity personnel and our retained external cybersecurity consultants. Our management team overseeing cybersecurity has over 25+ years of technology and cybersecurity experience and certain of our team hold various cybersecurity certifications, including the Certified Information Systems Security Professional (CISSP) certification.
Our management team supervises efforts to prevent, detect, mitigate, and remediate cybersecurity risks and incidents through various means, which may include briefings from internal security personnel; threat intelligence and other information obtained from governmental, public or private sources, including external consultants engaged by us; and alerts and reports produced by security tools deployed in the IT environment.
The Company is able to identify cybersecurity breaches through various channels, including but not limited to automated event detection alerts, reports from employees, notifications from external entities such as third-party IT service providers, and proactive threat investigations in collaboration with our external partners. Upon spotting a potential cybersecurity breach, including those involving third-party cyber events, the Company’s designated incident response team outlined in the IRP adheres to the policy's protocols to investigate the suspected incident. This investigation entails determining the nature of the event (e.g., ransomware attack or breach of personal data), evaluating the severity of the incident, and gauging the sensitivity of any compromised data.
In the event of a cybersecurity breach, our primary objective is to swiftly contain it by the procedures detailed in our IRP. Once containment is achieved, our focus shifts to remediation and recovery efforts. These actions are tailored to the specifics of the breach and may involve tasks such as rebuilding systems or hosts, replacing compromised files with clean versions, verifying the integrity of affected files or data, enhancing network surveillance or logging to detect future attacks, adjusting administrative account privileges, fortifying network security like firewall configurations, and providing additional training to
18



employees. Additionally, we carry cybersecurity insurance to cover certain expenses associated with security lapses and specified cyber incidents that disrupt our network or those of our vendors, subject to predefined limits and exclusions.
Our IRP includes clear communication guidelines, outlining procedures for engaging executive management, internal and external legal counsel, the Audit Committee, and the Board. These protocols also encompass a framework for evaluating our regulatory reporting obligations to entities such as the SEC in the aftermath of a cybersecurity incident.
Board Oversight of Cybersecurity
Our Board considers cybersecurity risk as part of its risk oversight function and has delegated to the Audit Committee oversight of cybersecurity and other information technology risks. The Audit Committee oversees management’s implementation of our cybersecurity risk management program. In addition, management updates the Audit Committee, as necessary, regarding any material cybersecurity incidents, as well as any incidents with lesser impact potential.
The Audit Committee reports to the full Board regarding its activities, including those related to cybersecurity. The full Board also receives briefings from management on our cyber risk management program on a quarterly basis. Board members receive presentations on cybersecurity topics from our Senior Vice President of Information Systems as well as our Vice President of Information Security and Compliance, internal security staff or external experts as part of the Board’s continuing education on topics that impact public companies.
As part of our board refreshment efforts in recent years, we have added directors with information technology governance skills. Currently, five members of our board, including all four members of our Audit Committee, have cybersecurity experience from their principal occupation, other professional experience or third-party director education courses on cybersecurity, including cyber risk governance, and data privacy and security issues and trends.
Item 2.     Properties
As of December 31, 2017,2023, we owned or had ownership interests in 1,0612,377 operating stores. Of these stores, 8461,903 are wholly-owned, one istwo are in a consolidated joint venture,ventures, and 214472 are in unconsolidated joint ventures. In addition, we managed an additional 4221,337 stores for third parties bringing the total number of stores which we own and/or manage to 1,483.3,714. These stores are located in 3942 states, and Washington, D.C. and Puerto Rico. The majority of our stores are clustered around large population centers. The clustering of assets around these population centers enables us to reduce our operating costs through economies of scale. Our acquisitions have given us an increased scale in many core markets as well as a foothold in many markets where we had no previous presence.
Diversified Portfolio.jpg
As of December 31, 2017,2023, approximately 835,0002,100,000 tenants were leasing storage units at the operating stores that we own and/or manage, primarily on a month-to-month basis, providing the flexibility to increase rental rates over time as market conditions permit. Existing tenants generally receive rate increases at least annually, for which no direct correlation has been drawn to our vacancy trends. Although leases are short-term in duration, the typical tenant tends to remain at our stores for an extended period of time. For stores that were stabilized as of December 31, 2017,2023, the average length of stay was approximately 14.617.4 months.
The average annual rent per square foot for our existing customers at stabilized stores, net of discounts and bad debt, was $15.98$21.25 for the year ended December 31, 2017,2023, compared to $15.30$20.50 for the year ended December 31, 2016.2022. Average annual rent per square foot for new leases was $16.77$16.19 for the year ended December 31, 2017,2023, compared to $15.96$18.32 for the year ended December 31, 2016.2022. The average discounts, as a percentage of rental revenues, during these periods were 3.9%2.5% and 3.6%3.0%, respectively.
Our store portfolio is made up of different types of construction and building configurations. Most often sites are what we consider “hybrid” facilities, a mix of both drive-up buildings and multi-floor buildings. We have a number of multi-floor buildings with elevator access only, and a number of facilities featuring ground-floor access only.
The following table presents additional information regarding net rentable square feet and the number of stores by state.state:
As of December 31, 2023
REIT OwnedJV OwnedManagedTotal
Location
Property Count (1)
Net Rentable Square FeetProperty CountNet Rentable Square FeetProperty CountNet Rentable Square FeetProperty CountNet Rentable Square Feet
Alabama37 2,913,201 150,859 12 757,497 51 3,821,557 
Arizona46 3,431,613 26 2,091,172 43 3,513,713 115 9,036,498 
California218 17,876,246 50 3,715,231 126 11,806,094 394 33,397,571 
Colorado27 1,890,949 13 937,765 32 2,338,587 72 5,167,301 
Connecticut23 1,754,071 714,457 14 948,070 45 3,416,598 
Delaware— — 143,640 228,651 372,291 
Florida245 18,448,238 56 4,653,439 164 12,618,124 465 35,719,801 
Georgia119 9,050,883 23 1,892,103 49 3,686,856 191 14,629,842 
Hawaii14 942,069 — — 159,569 17 1,101,638 
Idaho131,569 — — 201,847 333,416 
Illinois105 7,534,278 12 940,032 44 3,311,178 161 11,785,488 
Indiana91 3,935,511 57,777 25 1,790,294 117 5,783,582 
Iowa— — — — 175,614 175,614 
Kansas50,219 108,921 416,764 575,904 
Kentucky15 1,065,563 51,800 15 1,179,886 31 2,297,249 
Louisiana10 771,538 — — 25 1,777,779 35 2,549,317 
Maine353,767 — — 12 750,918 17 1,104,685 
Maryland44 3,473,618 11 899,878 47 3,381,481 102 7,754,977 
Massachusetts64 4,059,829 16 984,594 36 2,388,706 116 7,433,129 
Michigan673,399 309,052 15 1,186,708 27 2,169,159 
Minnesota709,829 646,659 14 1,009,746 30 2,366,234 
Mississippi560,879 — — 10 736,463 17 1,297,342 
Missouri28 2,240,243 509,322 20 1,583,234 55 4,332,799 
Nebraska— — — — 371,900 371,900 
Nevada33 2,907,229 840,819 11 1,059,569 53 4,807,617 
New Hampshire17 1,274,725 84,165 20 871,125 39 2,230,015 
New Jersey88 7,033,287 33 2,610,319 55 4,290,839 176 13,934,445 
New Mexico11 714,415 10 681,770 15 1,084,218 36 2,480,403 
New York79 5,693,262 28 2,316,671 84 5,883,153 191 13,893,086 
North Carolina52 3,732,706 620,612 37 2,666,196 97 7,019,514 
Ohio50 3,357,288 325,617 22 1,661,267 77 5,344,172 
Oklahoma268,833 — — 20 1,493,518 24 1,762,351 
Oregon550,155 166,638 467,124 17 1,183,917 
Pennsylvania31 2,359,752 12 966,346 51 3,741,143 94 7,067,241 
Rhode Island351,451 95,844 473,601 13 920,896 
South Carolina40 2,977,927 11 708,382 39 3,198,894 90 6,885,203 
Tennessee29 2,410,329 16 1,091,936 24 1,719,250 69 5,221,515 
Texas241 19,927,466 71 5,456,117 122 10,409,683 434 35,793,266 
Utah10 733,895 — — 31 2,512,983 41 3,246,878 
Virginia73 5,956,916 10 759,116 34 2,367,593 117 9,083,625 
Washington14 1,090,894 199,770 16 1,262,293 32 2,552,957 
Washington, DC100,203 104,189 538,309 742,701 
Wisconsin97,938 883,232 15 1,245,006 25 2,226,176 
Totals1,905 143,406,183 472 36,718,244 1,337 103,265,443 3,714 283,389,870 
(1) Includestwoconsolidated joint ventures and excludes approximately 17,900 units related to Bargold Storage Systems, LLC ("Bargold"). See Note 5 in the Notes to the Condensed Consolidated Financial Statements.

19
 As of December 31, 2017
 REIT OwnedJV OwnedManagedTotal
LocationProperty CountNet Rentable Square FeetProperty CountNet Rentable Square FeetProperty CountNet Rentable Square FeetProperty CountNet Rentable Square Feet
Alabama8
557,887
1
75,286
9
468,712
18
1,101,885
Arizona22
1,536,086
8
554,487
6
420,836
36
2,511,409
California145
11,423,633
53
3,752,368
54
5,072,892
252
20,248,893
Colorado13
853,150
3
247,030
16
1,142,138
32
2,242,318
Connecticut7
524,606
6
485,336
3
218,206
16
1,228,148
Delaware

1
76,765


1
76,765
Florida82
6,273,792
17
1,333,795
51
3,775,872
150
11,383,459
Georgia55
4,221,218
3
275,370
13
928,430
71
5,425,018
Hawaii9
603,380


7
403,633
16
1,007,013
Illinois31
2,395,802
4
288,168
18
1,108,036
53
3,792,006
Indiana15
943,492
1
57,010
7
486,709
23
1,487,211
Kansas1
49,999
2
108,770
1
70,480
4
229,249
Kentucky10
767,624
2
111,342
5
359,304
17
1,238,270
Louisiana2
150,355


1
133,810
3
284,165
Maryland32
2,558,639
7
530,788
20
1,346,381
59
4,435,808
Massachusetts41
2,558,305
11
663,963
3
200,511
55
3,422,779
Michigan6
477,254
5
396,484


11
873,738
Minnesota1
74,550


5
325,475
6
400,025
Mississippi3
217,442


4
258,690
7
476,132
Missouri5
331,836
2
119,575
5
301,578
12
752,989
Nebraska



2
90,742
2
90,742
Nevada14
1,038,922
4
472,911
7
840,292
25
2,352,125
New Hampshire2
135,932
2
83,685
4
145,280
8
364,897
New Jersey55
4,341,854
19
1,415,395
8
624,589
82
6,381,838
New Mexico10
643,186
4
242,503
4
326,294
18
1,211,983
New York22
1,638,327
12
930,426
14
725,050
48
3,293,803
North Carolina16
1,088,452


15
1,038,417
31
2,126,869
Ohio16
1,217,275
6
415,728
2
111,419
24
1,744,422
Oklahoma



16
1,336,611
16
1,336,611
Oregon6
399,292
2
138,275
3
183,795
11
721,362
Pennsylvania16
1,203,819
7
505,496
17
1,203,508
40
2,912,823
Rhode Island2
131,021


1
84,665
3
215,686
South Carolina23
1,741,038
1
85,486
9
666,943
33
2,493,467
Tennessee17
1,423,749
12
802,555
9
654,935
38
2,881,239
Texas97
8,323,425
11
767,115
47
3,699,803
155
12,790,343
Utah10
706,215


6
444,536
16
1,150,751
Virginia44
3,515,299
7
513,857
13
937,276
64
4,966,432
Washington8
591,349


2
145,839
10
737,188
Washington, DC1
99,589
1
104,382
1
73,237
3
277,208
Wisconsin



6
562,695
6
562,695
Puerto Rico



8
900,440
8
900,440
Totals847
64,757,794
214
15,554,351
422
31,818,059
1,483
112,130,204






Item 3.     Legal Proceedings
We are involved in various legal proceedings and are subject to various claims and complaints arising in the ordinary course of business. Because litigation is inherently unpredictable, the outcome of these matters cannot presently be determined with any degree of certainty. In accordance with applicable accounting guidance, management establishes an accrued liability for litigation when those matters present loss contingencies that are both probable and reasonably estimable. In such cases, there may be an exposure to loss in excess of any amounts accrued. The estimated loss, if any, is based upon currently available information and is subject to significant judgment, a variety of assumptions, and known and unknown uncertainties. We could in the future incur judgments or enter into settlements of claims that could have a material adverse effect on our results of operations in any particular period, notwithstanding the fact that we are currently vigorously defending any legal proceedings against us. For more information on our legal accruals, refer to the Commitments and Contingencies footnote in the notes to the consolidated financial statements in Item 8 of this Form 10-K.
Item 4.     Mine Safety Disclosures
Not Applicable.applicable.
PART II
Item 5.     Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities
Market Information
Our common stock has beenis traded under the symbol “EXR” on the New York Stock Exchange (“NYSE”("NYSE") under the symbol “EXR” since our IPO on August 17, 2004. Prior to that time there was no public market for our common stock.
The following table presents, for the periods indicated, the high and low sales price for our common stock as reported by the NYSE and the per share dividends declared:
 2017 2016
 Range Dividends Declared Range Dividends Declared
QuarterHigh Low  High Low 
1st$79.82
 $71.64
 $0.78
 $93.46
 $78.42
 $0.59
2nd$80.80
 $71.79
 $0.78
 $94.04
 $84.95
 $0.78
3rd$82.25
 $74.13
 $0.78
 $94.38
 $76.17
 $0.78
4th$87.86
 $78.70
 $0.78
 $77.66
 $68.78
 $0.78
On February 21, 2018,22, 2024, the closing price of our common stock as reported by the NYSE was $81.50.$141.39. At February 21, 2018,22, 2024, we had 423833 holders of record of our common stock. Certain shares of the Company are held in “street” name and accordingly, the number of beneficial owners of such shares is not known or included in the foregoing number.
Holders of shares of common stock are entitled to receive distributions when declared by our board of directors out of any assets legally available for that purpose. As a REIT, we are required to distribute at least 90% of our “REIT taxable income,” which is generally equivalent to our net taxable ordinary income, determined without regard to the deduction for dividends paid to our stockholders, annually in order to maintain our REIT qualification for U.S. federal income tax purposes. We have historically made regular quarterly distributions to our stockholders.
Information about our equity compensation plans is incorporated by reference in Item 12 of Part III of this Annual Report on Form 10-K.


Issuer Purchases of Equity Securities


In November 2017,2023, our board of directors authorized a three-year share repurchase program to allowallowing the Company to acquirerepurchase of shares inwith an aggregate value up to $400.0$500.0 million. The Company expectsDuring the year ended December 31, 2023, no shares were repurchased. As of December 31, 2023, we had remaining authorization to acquirerepurchase shares through open market or privately negotiated transactions. There have been no repurchases since the inception of this plan.with an aggregate value up to $500.0 million.
Unregistered Sales of Equity Securities
On December 28, 2017, our Operating Partnership issued 64,708 common OP units ("OP Units")in connection with the acquisition of one store in Florida. The store was acquired in exchange for the OP Units, valued at $5.6 million, and approximately $4.9 million in cash.
On December 6, 2017, our Operating Partnership issued 174,020 Series D-2 Preferred Units in connection with a joint venture's acquisition of one store in New York. We acquired an ownership interest in the store from the issuance of Preferred D-2 Units that was then contributed to the joint venture as an equity contribution. The OP Units were valued at $4.3 million.
The terms of the common and preferred OP Units are governed by the Operating Partnership’s Fourth Amended and Restated Agreement of Limited Partnership. The OP Units will be redeemable, at the option of the holders following the expiration of a lock-up period of at least one year from the date of issuance. The redemption obligation may be satisfied, at our option, in cash or shares of our common stock.
The OP Units were issued in private placements in reliance on Section 4(a)(2) of the Securities Act of 1933, as amended, and the rules and regulations promulgated thereunder.
All other unregistered sales of equity securities during the year ended December 31, 20172023 have previously been disclosed in filings with the SEC.
Item 6.     Selected Financial Data
The following table presents selected financial data and should be read in conjunction with the financial statements and notes thereto included in Item 8, “Financial Statements and Supplementary Data” and Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in this Form 10-K (amounts in thousands, except share and per share data).Not required.
20
 For the Year Ended December 31,
 2017 2016 2015 2014 2013
Operating Data:         
Total revenues$1,105,009
 $991,875
 $782,270
 $647,155
 $520,613
Income from operations (1)
$541,605
 $449,838
 $294,656
 $278,468
 $213,483
Earnings per share basic$3.79
 $2.92
 $1.58
 $1.54
 $1.54
Earnings per share diluted$3.76
 $2.91
 $1.56
 $1.53
 $1.53
Cash dividends paid per common share$3.12
 $2.93
 $2.24
 $1.81
 $1.45
Other Data:         
Acquisitions - wholly owned$627,462
 $1,086,645
 $1,606,509
 $563,670
 $704,449
Acquisitions - investment in joint ventures15,094
 34,199
 21,529
 
 
Total$642,556
 $1,120,844
 $1,628,038
 $563,670
 $704,449





 As of December 31,
 2017 2016 2015 2014 2013
Balance Sheet Data         
Total assets$7,455,137
 $7,091,446
 $6,071,407
 $4,381,987
 $3,977,140
Total notes payable, notes payable to trusts, exchangeable senior notes and revolving lines of credit, net (2)
$4,554,217
 $4,306,223
 $3,535,621
 $2,349,764
 $1,946,647
Noncontrolling interests$373,056
 $351,274
 $283,527
 $174,558
 $173,425
Total stockholders' equity$2,350,751
 $2,244,892
 $2,089,077
 $1,737,425
 $1,758,470
Other Data         
Net cash provided by operating activities$597,375
 $539,263
 $367,329
 $337,581
 $271,259
Net cash used in investing activities$(369,556) $(1,032,035) $(1,625,664) $(564,948) $(366,976)
Net cash provided by (used in) financing activities$(215,994) $460,831
 $1,286,471
 $148,307
 $191,655

(1)The adoption of FASB ASU 2017-01 on January 1, 2017, has resulted in a decrease in acquisition related costs as the Company’s acquisition of operating stores are considered asset acquisitions rather than business combinations.
(2)
In connection with our adoption of Financial Accounting Standards Board (“FASB”) ASU 2015-3, "Simplifying the Presentation of Debt Issuance Costs," in fiscal year 2016, debt issuance costs, with the exception of those related to our revolving credit facility, have been reclassified from other assets to a reduction of the carrying amount of the related debt liability. Prior year amounts have been reclassified to conform to the current period’s presentation.
Item 7.     Management’s Discussion and Analysis of Financial Condition and Results of Operations
The following discussion should be read in conjunction with the financial statements and notes thereto appearing elsewhere in this report. We make statements in this section that are forward-looking statements within the meaning of the federal securities laws. For a complete discussion of forward-looking statements, see the section in this Form 10-K entitled “Statements Regarding Forward-Looking Information.” Certain risk factors may cause actual results, performance or achievements to differ materially from those expressed or implied by the following discussion. For a discussion of such risk factors, see the section in this Form 10-K entitled “Risk Factors.” AmountsDollar amounts in thousands, except share and per share data.data, unless otherwise stated.
OVERVIEW
We are a fully integrated, self-administered and self-managed real estate investment trust (“REIT”),REIT, formed to own, operate, manage, acquire, develop and redevelop self-storage properties (“stores”). We derive substantially all of our revenues from our two segments: storage operations and tenant reinsurance. Primary sources of revenue for our storage operations segment include rents received from tenants under leases at each of our wholly-owned stores. Our operating results depend materially on our ability to lease available self-storage units, to actively manage unit rental rates, and on the ability of our tenants to make required rental payments. Consequently, management spends a significant portion of their time maximizing cash flows from our diverse portfolio of stores. Revenue from our tenant reinsurance segment consists of insurance revenues from the reinsurance of risks relating to the loss of goods stored by tenants in the Company'sour stores. Our segment presentation has changed from the prior year, and all applicable information has been reclassified to conform to the current year's segment presentation.
Our stores are generally situated in highly visible locations clustered around large population centers. These areas enjoy above average population growth and income levels. The clustering of our assets around these population centers enables us to reduce our operating costs through economies of scale. To maximize the performance of our stores, we employ industry-leading revenue management systems. Developed by our management team, these systems enable us to analyze, set and adjust rental rates in real time across our portfolio in order to respond to changing market conditions. We believe our systems and processes allow us to more pro-actively manage revenues.
We operate in competitive markets, often where consumers have multiple stores from which to choose. Competition has impacted, and will continue to impact, our store results. We experience seasonal fluctuations in occupancy levels, with occupancy levels generally higher in the summer months due to increased moving activity. We believe that we are able to respond quickly and effectively to changes in local, regional and national economic conditions by adjusting rental rates through the combination of our revenue management team and our industry-leading technology systems. We consider a store to be in the lease-up stage after it has been issued a certificate of occupancy, but before it has achieved stabilization. We consider a store to be stabilized once it has achieved either an 80% occupancy rate for a full year measured as of January 1 of the current year, or has been open for three years prior to January 1 of the current year.


CRITICAL ACCOUNTING POLICIES AND ESTIMATES
Our financial statements have been prepared in accordance with U.S. generally accepted accounting principles. The preparation of these financial statements requires us to make estimates and assumptions that affect the reported amount of assets and liabilities at the date of the financial statements and the reported amount of revenues and expenses during the reporting period. On an ongoing basis, we evaluate our estimates and assumptions, including those that impact our most critical accounting policies. We base our estimates and assumptions on historical experience and on various other factors that we believe are reasonable under the circumstances. A summary of significant accounting policies is also provided in the notes to our consolidated financial statements (see Note 2 to our consolidated financial statements). Actual results may differ from these estimates. We believe the following are our most critical accounting policies and estimates:
CONSOLIDATION: Arrangements that are not controlled through voting or similar rights are accounted for as variable interest entities (“VIEs”). An enterprise is required to consolidate a VIE if it is the primary beneficiary of the VIE.
We have concluded that under
Under certain circumstances when we enter into arrangements for the formation of joint ventures, a VIE may be created.  For eachThe primary factors that require the most judgment in determining whether the joint venture is a VIE created,are whether the decisions that most significantly impact the entity’s economic performance were controlled by the equity holders as a group, and whether the joint venture has sufficient equity to finance its activities without additional subordinated support.
If the joint venture is determined to be a VIE, we have performedperform a qualitative analysis, including considering which party, if any, has the power to direct the activities most significant to the economic performance of each VIE and whether that party has the obligation to absorb losses of the VIE or the right to receive benefits from the VIE that could be significant to the VIE. If we are determined to be the primary beneficiary of the VIE, the assets, liabilities and operations of the VIE are consolidated with within
21



our financial statements. Otherwise, our investment is generally accounted for under the equity method. Our ability to correctly assess the influence or control over an entity affects the presentation of the investment in our consolidated financial statements.
As of December 31, 2017, we had no consolidated VIEs. Additionally, our Operating Partnership has notes payable to three trusts that are considered VIEs. Since the Operating Partnership is not the primary beneficiary of the trusts, these VIEs are not consolidated.
REAL ESTATE ASSETS: We account for the acquisition of stores, including by merger and other acquisitions of real estate, in accordance with ASC 805-10, "Business Combinations." We use our judgment to determine if assets acquired meet the definition of a business or if the acquisition should be considered an asset acquisition subsequent to our January 1, 2017 adoption of ASU 2017-01, "Business Combinations (Topic 805) - Clarifying the Definition of a Business."acquisition. We must make significant assumptions and estimates in determining the fair value of the tangible and intangible assets and liabilities acquired and consideration transferred. These fair value estimates are sensitive to: price of land per square foot and current replacement cost estimates, including adjustments for the age, class, height, square footage, condition, location, and turnkey factor. These assumptions and estimates require judgment, and therefore others could come to materially different conclusions as to the estimated fair values, which could result in differences in depreciation and amortization expense, gains and losses on the purchase and sale of real estate assets, and real estate and intangible asset values.
EVALUATION OF ASSET IMPAIRMENT: Long lived assets held for use are evaluated for impairment when events or circumstances indicate that there may be impairment. We review each store at least annually to determine if any such events or circumstances have occurred or exist. We focus on stores where occupancy and/or rental income have decreased by a significant amount. For these stores, we determine whether the decrease is temporary or permanent and whether the store will likely recover the lost occupancy and/or revenue in the short term. In addition, we review stores in the lease-up stage and compare actual operating results to original projections. We may not have identified all material facts and circumstances that affect impairment of our stores. No material impairments were recorded in the year ended December 31, 2017.2023.
We evaluate goodwill for impairment at least annually and whenever events, circumstances, and other related factors indicate that fair value of the related reporting unit may be less than the carrying value. If the fair value of the reporting unit is determined to exceed the aggregate carrying amount, no impairment charge is recorded. Otherwise, an impairment charge is recorded to the extent the carrying amount of the goodwill exceeds the amount that would be allocated to goodwill if the reporting unit were acquired for estimated fair value. No impairments were recorded in our evaluations for any period presented herein.
DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES: We hold a number of derivative instruments which we use to hedge our exposure to variability in expected future cash flows, mainly related to our interest rates on variable interest debt. We do not use derivatives for trading or speculative purposes. We assess our derivatives both at inception, and on an ongoing quarterly basis, for whether the derivatives used in hedging transactions are effective. Any ineffective portion of a derivative financial instrument's change in fair value is immediately recognized in earnings. The rules and interpretations relating to the accounting for derivatives are complex. Failure to apply this guidance correctly may require us to recognize all changes in fair value of the hedged derivative in earnings, which may materially impact our results.
INCOME TAXES: We have elected to be treated as a REIT under Sections 856 through 860 of the Internal Revenue Code. In order to maintain our qualification as a REIT, among other things,requirements, we are required to distribute at least 90% of our REIT taxable income to our stockholders and meet certain tests regarding the nature of our income and assets. As a REIT, we are not subject to U.S. federal income tax with respect to that portion of our income which meets certain criteria and is distributed annually to our stockholders. We plan to continue to operate so that we meet the requirements for taxation as a REIT. Many of these requirements, however, are highly technical and complex. For any taxable year that we fail to qualify as a REIT and for which applicable statutory relief provisions did not apply, we would be subject to U.S. federal corporate income tax on all of our


taxable income for at least that year and the ensuing four years. We could also be subject to penalties and interest, and our net income may be materially different from the amounts reported in our financial statements.
We have elected to treat one of ourcertain corporate subsidiaries, including Extra Space Management, Inc., as a taxable REIT subsidiary (“TRS”).TRS. In general, oura TRS may perform additional services for tenants and generally may engage in any real estate or non-real estate related business. A TRS is subject to U.S. federal corporate income tax.tax and may also be subject to state and local income taxes. Interest and penalties relating to uncertain tax positions will be recognized in income tax expense when incurred. If tax authorities determine that amounts paid by any of our taxable REIT subsidiariesTRSs to us are not reasonable compared to similar arrangements among unrelated parties, we could be subject to a penalty tax on the excess payments.
RECENT ACCOUNTING PRONOUNCEMENTS: PRONOUNCEMENTS
For a discussion of recent accounting pronouncements affecting our business, see Item 8, “Financial Statements and Supplementary Data–Recently Issued Accounting Standards.”
22



RESULTS OF OPERATIONS
Comparison of the Year Ended December 31, 20172023 to the Year Ended December 31, 20162022
Overview
Results for the year ended December 31, 20172023 included the operations of 1,0612,377 stores (846(1,903 wholly-owned, onetwo in a consolidated joint venture, and 214472 in joint ventures accounted for using the equity method) compared to the results for the year ended December 31, 2016,2022, which included the operations of 1,0161,451 stores (836(1,132 wholly-owned, one in a consolidated joint venture, and 179318 in joint ventures accounted for using the equity method). Material or unusual changes in the results of our operations are discussed below.
Results of Operations.jpg

Revenues
The following table presents information on revenues earned for the years indicated:
 For the Year Ended December 31,
 20232022$ Change% Change
Property rental$2,222,578 $1,654,735 $567,843 34.3 %
Tenant reinsurance235,680 185,531 50,149 27.0 %
Management fees and other income101,986 83,904 18,082 21.6 %
Total revenues$2,560,244 $1,924,170 $636,074 33.1 %

 For the Year Ended December 31,    
 2017 2016 $ Change % Change
Revenues:       
Property rental$967,229
 $864,742
 $102,487
 11.9 %
Tenant reinsurance98,401
 87,291
 11,110
 12.7 %
Management fees and other income39,379
 39,842
 (463) (1.2)%
Total revenues$1,105,009
 $991,875
 $113,134
 11.4 %

Property Rental—The increase in property rental revenues for the year ended December 31, 20172023 was primarily the result of an increase of $59,694$507,054 associated with our merger with Life Storage on July 20, 2023, (the "Life Storage Merger" or "Merger") and other acquisitions completed in 2017 and 2016.2023. We acquired 46757 wholly-owned stores in the Merger and an additional 14 stores during the year ended December 31, 2017 and 992023. We acquired 153 stores during the year ended December 31, 2016. Property2022. In addition to the increase attributable to the Merger, property rental revenue alsorevenues increased


by $40,439 during the year ended December 31, 2017$46,712 due to operating results at our stabilized stores and increased by $7,523 as a result of increases in rental rates to new and existing customersoccupancy at our stabilizedlease-up stores.
Tenant Reinsurance—The increase in tenant reinsurance revenues was due primarily to thean increase in the number of stores operated. We operated 1,4833,714 stores at December 31, 2017,2023, compared to 1,4272,338 stores at December 31, 2016.2022.
Management Fees and Other Income—Management fees and other income represent the feefees collected for our management of stores owned by third parties and unconsolidated joint ventures.ventures and other transaction fee income. The increase for the year ended December 31, 2023 was primarily due to an increase in the number of stores managed. As of December 31, 2023, we managed 1,811 stores for third parties and joint ventures compared to 1,206 stores as of December 31, 2022.
23



Expenses
The following table presents information on expenses for the years indicated:
 For the Year Ended December 31,
 20232022$ Change% Change
Property operations$612,036 $435,342 $176,694 40.6 %
Tenant reinsurance58,874 33,560 25,314 75.4 %
Transaction costs— 1,548 (1,548)(100.0)
Life Storage Merger transition costs66,732 — 66,732 — %
General and administrative146,408 129,251 17,157 13.3 %
Depreciation and amortization506,053 288,316 217,737 75.5 %
Total expenses$1,390,103 $888,017 $502,086 56.5 %
 For the Year Ended December 31,    
 2017 2016 $ Change % Change
Expenses:       
Property operations$271,974
 $250,005
 $21,969
 8.8 %
Tenant reinsurance19,173
 15,555
 3,618
 23.3 %
Acquisition related costs and other
 12,111
 (12,111) (100.0)%
General and administrative78,961
 81,806
 (2,845) (3.5)%
Depreciation and amortization193,296
 182,560
 10,736
 5.9 %
Total expenses$563,404
 $542,037
 $21,367
 3.9 %
Property Operations—The increase in property operations expense consists primarily of an increase of $19,607 related to$153,712 associated with the Life Storage Merger and other acquisitions completed in 2017 and 2016.2023. We acquired 46 operating757 wholly-owned stores in the merger and an additional 14 stores during the year ended December 31, 2017 and 992023. We acquired 153 stores during the year ended December 31, 2016.2022. Additionally, property operations expense increased $22,097 at stabilized stores due to increased marketing expense, credit card processing fees and insurance.
Tenant Reinsurance—Tenant reinsurance expense represents the costs that are incurred to provide tenant reinsurance. The change isincrease in tenant reinsurance expense for the year ended December 31, 2023 was due primarily to the increase in thetotal number of stores we owned and/or managed.
Acquisition Related Costs and Other—Foroperated compared to the year endedprior year. We operated 3,714 stores at December 31, 2016, acquisition related2023, compared to 2,338 stores at December 31, 2022.
Transaction Costs—This represents the costs represented closing and other transaction coststhat were incurred in connection with our acquisition of operating stores, which were accounted for as business combinations. On January 1, 2017, we adopted the guidance in ASU 2017-01, "Business Combinations (Topic 805) - Clarifying the Definition of a Business," which resulted in our acquisition of operating stores being accounted for as asset acquisitions rather than business combinations. Accordingly, closing and other transactions costs have been capitalized in 2017 as part of the acquisition price for asset acquisitions, rather than being expensedof Bargold.
Life Storage Merger Transition Costs— Represents the costs that were incurred as incurred.part of the Life Storage Merger primarily consisting of severance paid as part of employment agreements with certain employees and officers of Life Storage.
General and Administrative—General and administrative expenses primarily include all expenses not directly related to our stores, including corporate payroll, travel and professional fees. These expenses are recognized as incurred. General and administrative expenses for the year ended December 31, 2017 decreased when compared to the same period in the prior yearOur overall expense has increased primarily as a result of an expense of $4,000 that was recorded during the year ended December 31, 2016 as the result of a legal settlement. There were no such expenses during the year ended December 31, 2017. We did not observe anyour increased size through acquisitions, business combinations and growth through our joint venture partners and managed portfolio. No other material trends in specific payroll, travel or other expenses that contributed significantly to the increase in general and administrative expenses apart from the increase due to the management of additional stores.were observed.
Depreciation and Amortization—Depreciation and amortization expense increased primarily as a result of the acquisition of new stores. We acquired 46 operating757 wholly-owned stores in the Life Storage Merger and an additional 14 wholly-owned stores during the year ended December 31, 2017, and 99 operating2023. We acquired 153 stores during the year ended December 31, 2016.2022.

24




Other Income and Expenses
The following table presents information on other revenues and expenses for the years indicated:
 For the Year Ended December 31,
 20232022$ Change% Change
Gain on real estate transactions$— $14,249 $(14,249)(100.0)%
Interest expense(419,035)(219,171)(199,864)91.2 %
Non-cash interest expense related to amortization of discount on Life Storage unsecured senior notes(18,786)— (18,786)100.0 %
Interest income84,857 69,422 15,435 22.2 %
Equity in earnings and dividend income from unconsolidated real estate entities54,835 41,428 13,407 32.4 %
Income tax expense(21,559)(20,925)(634)3.0 %
Total other expense, net$(319,688)$(114,997)$(204,691)178.0 %

 For the Year Ended December 31,    
 2017 2016 $ Change % Change
Other income and expenses:       
Gain (loss) on real estate transactions, earnout from prior acquisitions and impairment of real estate$112,789
 $8,465
 $104,324
 1,232.4 %
Interest expense(153,511) (133,479) (20,032) 15.0 %
Non-cash interest expense related to amortization of discount on equity component of exchangeable senior notes(5,103) (4,980) (123) 2.5 %
Interest income3,801
 6,148
 (2,347) (38.2)%
Interest income on note receivable from Preferred Operating Partnership unit holder2,935
 4,850
 (1,915) (39.5)%
Equity in earnings of unconsolidated real estate ventures15,331
 12,895
 2,436
 18.9 %
Equity in earnings of unconsolidated real estate ventures - gain on sale of real estate assets and purchase of joint venture partners' interests
 69,199
 (69,199) (100.0)%
Income tax expense(3,625) (15,847) 12,222
 (77.1)%
Total other income (expense), net$(27,383) $(52,749) $25,366
 (48.1)%
        

Gain (Loss) on Real Estate Transactions Earnout from Prior Acquisitions and Impairment of Real Estate— During the year ended, December 31, 2017,2022, we sold 36 stores to a new joint venture with an existing partner. We have a 10% ownership interest in the new joint venture.two stores. We recognized a total gain of $118,776$14,249 related to this transaction. During the year ended December 31, 2017, we also recognized an impairment loss of $6,100 related to three parcels of undeveloped land.
During the year ended December 31, 2016, through various transactions, we sold a total of nine stores located in Indiana, Ohio and Texas. We recognized a total gain of $11,358 related to these dispositions.
During 2014, we acquired five stores where we agreed to make an additional cash payment to the sellers if the acquired stores exceeded a specified amount of net operating income for the years ending December 31, 2015 and 2016.  As the operating incomesale of these stores during the earnout period was higher than originally estimated, an additional payment was due to the sellers of $4,284, which was recorded as a loss during 2016.assets.
Interest Expense—The increase in interest expense during the year ended December 31, 20172023 was primarily the result of higher overall debt balancesand a higher average interest rate when compared to the same period in the prior year as well asyear. Information on the increase in our average interest rate. The total face value of our debt including our lines of credit, was $4,601,322 at December 31, 2017 compared to $4,363,697 at December 31, 2016. Ourand the average interest rate as offor the years ended December 31, 2017 was 3.3% compared to 3.0% at2023 and December 31, 2016.2022 is set forth in the following table:
 For the Year Ended December 31,
 20232022
Total face value of debt$11,346,105 $7,364,424 
Average interest rate4.6 %4.1 %
Non-cash Interest Expense Related to Amortization of Discount on Equity Component of ExchangeableLife Storage Unsecured Senior Notes—Represents the amortization of the discounts relateddiscount recorded to present the equity componentsfair value of the exchangeableLife Storage unsecured senior notes issued by our Operating Partnership.assumed as part of the Life Storage Merger.
Interest Income—Interest income represents interest earned on bridge loans and debt securities, income earned on notes receivable from common and preferred Operating Partnership unit holders and amounts earned on cash and cash equivalents deposited with financial institutions andinstitutions. The total principal balance of bridge loans receivable as of December 31, 2023 was $594,727, compared to $491,879 as of December 31, 2022. The increase in interest earned on notes receivable.
Interest Income on Note Receivable from Preferred Operating Partnership Unit Holder—Represents interest on a $100,000 loan toincome during the holderyear ended December 31, 2023 was primarily the result of the Operating Partnership’s Series A Participating Redeemable Preferred Units (the “Series A Units”).higher bridge loan balances along with higher interest rates.
Equity in Earnings ofand Dividend Income from Unconsolidated Real Estate Ventures—Entities—Equity in earnings of unconsolidated real estate ventures represents the income earned through our ownership interests in unconsolidated real estate ventures. In joint ventures.


Equity in Earnings of Unconsolidated Real Estate Ventures—Gain on Sale of Real Estate Assetsventures, we and Purchase of Joint Venture Partners’ Interests— Beginning January 1, 2017, the acquisition of our joint venture partners' interestspartners generally receive a preferred return on our invested capital. To the extent that cash or profits in excess of these preferred returns are generated, we receive a higher percentage of the excess cash or profits, as applicable. We added a total of 154 stores are no longer considered business combinations achieved in stages (step acquisitions) due to new and existing joint ventures (145 stores from the adoption of ASU 2017-01, "Business Combinations (Topic 805): Clarifying the Definition of a Business." Instead, these transactions are considered asset acquisitions; therefore we had no gain or loss to record related to these transactionsLife Storage Merger) during the year ended December 31, 2017. In 2016 we had several large transactions with our joint venture partners that did result2023 resulting in gains. We acquired 11 stores from the ESS WCOT LLC joint venture ("WCOT") in a step acquisition. We recorded a gain of $4,651 as a result of the transaction. Similarly, we acquired 23 stores from our PRISA II joint venture ("PRISA II") in a separate step acquisition and recorded a gain of $6,778 on the transaction. Immediately after the step acquisition, we sold our interest in the PRISA II joint venture, which still owned 42 properties, to our joint venture partners, and recognized a gain of $30,846. Lastly, we acquired six stores from our VRS Self Storage LLC joint venture (“VRS”) in a step acquisition, where we again recorded a gain of $26,923.
Income Tax Expense— The decrease in income tax expense relates primarily to the remeasurement of our deferred tax liability balance and valuation allowance as a result of the 2017 Tax Legislation. The tax benefit recorded from this remeasurement was $8,606 for the year ended December 31, 2017. We also generated tax credits from our solar program in the amount of $5,308.
Comparison of the Year Ended December 31, 2016 to the Year Ended December 31, 2015
Overview
    

Results for the year ended December 31, 2016, included the operations of 1,016 stores (836 wholly-owned, one in a consolidated joint venture, and 179 in joint ventures accounted for using the equity method) compared to the results for the year ended December 31, 2015, which included the operations of 999 stores (746 wholly-owned, one in a consolidated joint venture, and 252 in joint ventures accounted for using the equity method). Material or unusual changes in the results of our operations are discussed below.
Revenues
The following table presents information on revenues earned for the years indicated:
 
For the Year Ended
December 31,
    
 2016 2015 $ Change % Change
Revenues:       
Property rental$864,742
 $676,138
 $188,604
 27.9%
Tenant reinsurance87,291
 71,971
 15,320
 21.3%
Management fees and other income39,842
 34,161
 5,681
 16.6%
Total revenues$991,875
 $782,270
 $209,605
 26.8%


Property Rental—The increase in property rental revenues for the year ended December 31, 2016 was primarily the result of an increase of $144,985 associated with acquisitions completed in 2016 and 2015. We acquired 99 stores during the year ended December 31, 2016 and 171 stores during the year ended December 31, 2015. Property rental revenue also increased by $42,171 during the year ended December 31, 2016 as a result of increases in rental rates to new and existing customers at our stabilized stores.
Tenant Reinsurance—The increase in tenant reinsurance revenues was primarily due to the increase in stores operated. We operated 1,427 stores at December 31, 2016, compared to 1,347 stores at December 31, 2015.
Management Fees and Other Income—Management fees represent the fee collected for our management of stores owned by third parties and unconsolidated joint ventures.
Expenses
The following table presents information on expenses for the years indicated:
 
For the Year Ended
December 31,
    
 2016 2015 $ Change % Change
Expenses:       
Property operations$250,005
 $203,965
 $46,040
 22.6 %
Tenant reinsurance15,555
 13,033
 2,522
 19.4 %
Acquisition related costs and other12,111
 69,401
 (57,290) (82.5)%
General and administrative81,806
 67,758
 14,048
 20.7 %
Depreciation and amortization182,560
 133,457
 49,103
 36.8 %
Total expenses$542,037
 $487,614
 $54,423
 11.2 %
Property Operations—The increase in property operations expense consists primarily of an increase of $45,055 related to acquisitions completed in 2016 and 2015. We acquired 99 operating stores during the year ended December 31, 2016 and 171 stores during the year ended December 31, 2015.
Tenant Reinsurance—Tenant reinsurance expense represents the costs that are incurred to provide tenant reinsurance. The change is due primarily to the increase in the number of stores we owned and/or managed.
Acquisition Related Costs and Other—For the years ended December 31, 2016 and 2015, acquisition related costs represented closing and other transaction costs incurred in connection with our acquisition of operating stores, which were accounted for as business combinations. These costs relate primarily to acquisition activities during the periods indicated. The decrease in these expenses for the year ended December 31, 2016 compared to the prior year was due to a decrease in the number of acquisitions. We acquired 99 properties during the year ended December 31, 2016 compared to 171 during the prior year. Included in the acquisitions completed in 2015 was the acquisition of SmartStop Self Storage Inc. ("SmartStop") on October 1, 2015. As part of this acquisition, we recorded an expense of $63,121 related to defeasance costs, prepayment penalties, and other acquisition related costs.
General and Administrative—General and administrative expenses primarily include all expenses not related to our stores, including corporate payroll, travel and professional fees. The expenses are recognized as incurred. General and administrative expense for the year ended December 31, 2016 increased when compared to the same periods in the prior year primarily due to the overall cost associated with the management of additional stores. We did not observe any material trends specific to payroll, travel or other expense that contributed significantly to the increase in general and administrative expenses apart from the increase due to the management of additional stores.
Depreciation and Amortization—Depreciation and amortization expense increased as a result of the acquisition of new stores. We acquired 99 operating stores during the year ended December 31, 2016, and 171 operating stores during the year ended December 31, 2015.


Other Income and Expenses
The following table presents information on other revenues and expenses for the years indicated:
 
For the Year Ended
December 31,
    
 2016 2015 $ Change % Change
Other income and expenses:       
Gain (loss) on real estate transactions, earnout from prior acquisitions and impairment of real estate$8,465
 $1,501
 $6,964
 464.0 %
Interest expense(133,479) (95,682) (37,797) 39.5 %
Non-cash interest expense related to amortization of discount on equity component of exchangeable senior notes(4,980) (3,310) (1,670) 50.5 %
Interest income6,148
 3,461
 2,687
 77.6 %
Interest income on note receivable from Preferred Operating Partnership unit holder4,850
 4,850
 
  %
Equity in earnings of unconsolidated real estate ventures12,895
 12,351
 544
 4.4 %
Equity in earnings of unconsolidated real estate ventures—gain on sale of real estate assets and purchase of joint venture partners’ interests69,199
 2,857
 66,342
 2,322.1 %
Income tax expense(15,847) (11,148) (4,699) 42.2 %
Total other expense, net$(52,749) $(85,120) $32,371
 (38.0)%
Gain (Loss) on Real Estate Transactions, Earnout from Prior Acquisitions and Impairment of Real Estate—During the year ended December 31, 2016, through various transactions, we sold a total of nine stores located in Indiana, Ohio and Texas. We recognized a total gain of $11,358 related to these dispositions.

During 2014, we acquired a portfolio of five stores where we agreed to make an additional cash payment to the sellers if the acquired stores exceeded a specified amount of net operating income for the years ending December 31, 2015 and 2016. As the operating income of these stores during the earnout period was higher than originally estimated, an additional payment was due to the sellers of $4,284, which was recorded as a loss during 2016.

In 2011, we acquired a single store in Florida. As part of the acquisition, we agreed to make an additional cash payment to the sellers if the acquired store exceeded a specified amount of net rental income for the period of 12 consecutive months ending June 30, 2015. During 2014, we recorded a liability of $2,500 as an estimate of the payment that would become due. The $400 gain recorded during 2015 represents the adjustment needed to true up the existing liability to the amount owed to the sellers as of June 30, 2015.

During 2015, we determined that one of our acquisitions was purchased at below its market value, and therefore recorded a $1,101 gain at the time of the acquisition, which represents the excess of the fair value of the store acquired over the consideration paid.
Interest Expense—The increase in interest expense during the year ended December 31, 2016 was primarily the result of higher debt balancesearnings when compared to the prior year. The total face valueDividend income represents dividends from our investment in preferred stock of our debt, including our lines of credit, was $4,363,697 atSmartStop Self Storage REIT, Inc. and Strategic Storage Trust VI, Inc.
Income Tax Expense—For the year ended December 31, 2016 compared to $3,598,254 at December 31, 2015.
Non-cash Interest Expense Related to Amortization of Discount on Equity Component of Exchangeable Senior Notes—Represents the amortization of the discounts related to the equity components of the exchangeable senior notes issued by our Operating Partnership.
Interest Income—Interest income represents amounts earned on cash and cash equivalents deposited with financial institutions and interest earned on notes receivable.
Interest Income on Note Receivable from Preferred Operating Partnership Unit Holder—Represents interest on a $100,000 loan to the holder of the Operating Partnership’s Series A Participating Redeemable Preferred Units (the “Series A Units”).


Equity in Earnings of Unconsolidated Real Estate Ventures—Equity in earnings of unconsolidated real estate ventures represents the income earned through our ownership interests in unconsolidated joint ventures.
Equity in Earnings of Unconsolidated Real Estate Ventures—Gain on Sale of Real Estate Assets and Purchase of Joint Venture Partners’ Interests— In 2016 we had several large transactions with our joint venture partners. We acquired 11 stores from our WCOT joint venture in a step acquisition. We recorded a gain of $4,651 as a result of the transaction. Similarly, we acquired 23 stores from our PRISA II joint venture in a separate step acquisition and recorded a gain of $6,778 on the transaction. Immediately after the step acquisition, we sold our interest in the PRISA II joint venture 2023, which still owned 42 properties, to our joint venture partners, and recognized a gain of $30,846. Lastly, we acquired six stores from our VRS joint venture in a step acquisition, where we again recorded a gain of $26,923.
During March 2015, one of our joint ventures sold a store located in New York to a third party and we recorded a gain of $1,228 on the transaction. Additionally, in March 2015 we acquired a joint venture partner’s 82.4% equity interest in an existing joint venture. We recognized a non-cash gain of $1,629 during the three months ended March 31, 2015 as a result of re-measuring the fair value of our 17.6% equity interest in this joint venture held before the acquisition.
Income Tax Expense—The increase in income tax expense relates primarily towas the result of an increase in income earned by our TRS when compared to the same periodsperiod in the prior year.
Comparison of the Year Ended December 31, 2022 to the Year Ended December 31, 2021

The results of operations for the years ended December 31, 2022 compared to December 31, 2021 was included in our Annual Report on Form 10-K for the year ended December 31, 2022 on page 21, under Part II, Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” which was filed with the SEC on February 28, 2022.
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FUNDS FROM OPERATIONS
FFOFunds from operations ("FFO") provides relevant and meaningful information about our operating performance that is necessary, along with net income and cash flows, for an understanding of our operating results. We believe FFO is a meaningful disclosure as a supplement to net earnings. Net earnings assume that the values of real estate assets diminish predictably over time as reflected through depreciation and amortization expenses. The values of real estate assets fluctuate due to market conditions and we believe FFO more accurately reflects the value of our real estate assets. FFO is defined by the National Association of Real Estate Investment Trusts, Inc. (“NAREIT”) as net income computed in accordance with U.S. generally accepted accounting principles (“GAAP”), excluding gains or losses on sales of operating stores and impairment write-downs of depreciable real estate assets, plus real estate related depreciation and amortization and after adjustments to record unconsolidated partnerships and joint ventures on the same basis. We believe that to further understand our performance, FFO should be considered along with the reported net income and cash flows in accordance with GAAP, as presented in the consolidated financial statements. FFO should not be considered a replacement of net income computed in accordance with GAAP.
The computation of FFO may not be comparable to FFO reported by other REITs or real estate companies that do not define the term in accordance with the current NAREIT definition or that interpret the current NAREIT definition differently. FFO does not represent cash generated from operating activities determined in accordance with GAAP, and should not be considered as an alternative to net income as an indication of our performance, as an alternative to net cash flow from operating activities as a measure of our liquidity, or as an indicator of our ability to make cash distributions.


The following table presents the calculation of FFO for the periods indicated:
 For the Year Ended December 31,
 202320222021
Net income attributable to common stockholders$803,198 $860,688 $827,649 
Adjustments:
Real estate depreciation418,149 263,923 229,133 
Amortization of intangibles59,295 13,623 4,420 
Gain on real estate transactions— (14,249)(140,760)
Unconsolidated joint venture real estate depreciation and amortization24,400 16,644 11,954 
Unconsolidated joint venture gain on sale of real estate assets and purchase of partner's interest— — (6,251)
Distributions paid on Series A Preferred Operating Partnership units(159)(2,288)(2,288)
Income allocated to Operating Partnership noncontrolling interests47,255 60,468 50,109 
Funds from operations attributable to common stockholders and unit holders$1,352,138 $1,198,809 $973,966 

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  For the Year Ended December 31,
  2017 2016 2015
Net income attributable to common stockholders $479,013
 $366,127
 $189,474
       
Adjustments:      
Real estate depreciation 172,660
 155,358
 115,924
Amortization of intangibles 13,591
 20,467
 11,094
Loss (gain) on real estate transactions, earnout from prior acquisition and impairment of real estate (112,789) (8,465) (1,501)
Unconsolidated joint venture real estate depreciation and amortization 5,489
 4,505
 4,233
Unconsolidated joint venture gain on sale of real estate and purchase of partner's interest1
 
 (69,199) (2,857)
Distributions paid on Series A Preferred Operating Partnership units (3,119) (5,085) (5,088)
Income allocated to Operating Partnership noncontrolling interests 35,306
 30,962
 20,064
Funds from operations attributable to common stockholders and unit holders $590,151
 $494,670
 $331,343
(1)Beginning January 1, 2017, the disposition of properties is not considered the disposal of a business due to the adoption of ASU 2017-01 "Business Combinations (Topic 805): Clarifying the Definition of a Business."



SAME-STORE RESULTS
Comparison of the Year Ended December 31, 20172023 to the Year Ended December 31, 20162022
Our same-store pool for the periods presented consists of 701913 stores that are wholly-owned and operated and that were stabilized by the first day of the earliest calendar year presented. We consider a store to be stabilized once it has been open for three years or has sustained average square foot occupancy of 80% or more for one calendar year. We believe that by providing same-store results from a stabilized pool of stores, with accompanying operating metrics including, but not limited to: occupancy, rental revenue growth, operating expense growth, net operating income growth, etc., stockholders and potential investors are able to evaluate operating performance without the effects of non-stabilized occupancy levels, rent levels, expense levels, acquisitions or completed developments.  Same-store results should not be used as a basis for future same-store performance or for the performance of our stores as a whole. The following table presents operating data for our same-store portfolio.portfolio:
 For the Year Ended December 31,Percent
 20232022Change
Same-store rental revenues$1,562,286 $1,515,365 3.1%
Same-store operating expenses$376,166 $361,570 4.0%
Same-store net operating income$1,186,120 $1,153,795 2.8%
Same-store square foot occupancy as of year end93.0 %94.1 %
Properties included in same-store913 913 
 For the Three Months Ended December 31, Percent For the Year Ended December 31, Percent
 2017 2016 Change 2017 2016 Change
Same-store rental and tenant reinsurance revenues$210,803
 $200,882
 4.9% $831,453
 $790,864
 5.1%
Same-store operating and tenant reinsurance expenses55,909
 54,355
 2.9% 224,353
 223,173
 0.5%
Same-store net operating income$154,894
 $146,527
 5.7% $607,100
 $567,691
 6.9%
            
Same-store square foot occupancy as of quarter end91.9% 91.5%   91.9% 91.5%  
            
Properties included in same-store701
 701
   701
 701
  


Same-store revenues for the three months and year ended December 31, 2017 increased due to gains in occupancy and higher rental rates for both new and existing customers. Expenses were higher for the three months ended December 31, 2017, primarily due to increases in property taxes, payroll and benefits and marketing, which were partially offset by decreases in repairs and maintenance and insurance. Expenses for the year ended December 31, 2017 were moderately2023 increased compared to the same periods in 2022 due to higher primarilyaverage rates to existing customers and higher other operating income partially offset by lower occupancy.

Same-store expenses increased for the year ended December 31, 2023 compared to the year ended 2022 due to increases in payroll, credit card processing fees, utilities, property taxes and marketinginsurance. The same-store expense offsetgrowth rate for the year ended December 31, 2023 is amplified by decreasesnegative expense growth in repairs and maintenance and insurance.the 2022 comparable period.



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The following table presents a reconciliation of same-store net operating income to net income as presented on our condensed consolidated statements of operations for the periods indicated:
 For the Three Months Ended December 31, For the Year Ended December 31,
 2017 2016 2017 2016
Net Income$229,315
 $90,416
 $514,222
 $397,089
Adjusted to exclude:       
Loss (gain) on real estate transactions, earnout from prior acquisition and impairment of real estate(118,808) 1,349
 (112,789) (8,465)
Equity in earnings of unconsolidated joint ventures(3,924) (3,082) (15,331) (12,895)
Equity in earnings of unconsolidated real estate ventures - gain on sale of real estate assets and purchase of joint venture partners' interests1

 (4,767) 
 (69,199)
Acquisition related costs and other2

 2,987
 
 12,111
Interest expense41,595
 37,088
 158,614
 138,459
Depreciation and amortization49,157
 49,158
 193,296
 182,560
Income tax expense (benefit)(5,529) 4,843
 3,625
 15,847
General and administrative18,790
 18,355
 78,961
 81,806
Management fees, other income and interest income(11,675) (12,312) (46,115) (50,840)
Net tenant insurance(20,174) (19,145) (79,228) (71,736)
Non same store revenue(35,548) (28,130) (135,776) (73,878)
Non same store expense11,695
 9,767
 47,621
 26,832
Total same store NOI$154,894
 $146,527
 $607,100
 $567,691
        
(1)Beginning January 1, 2017, the disposition of properties is not considered the disposal of a business due to the adoption of ASU 2017-01" Business Combinations (Topic 805): Clarifying the Definition of a Business"
(2)Beginning January 1, 2017, acquisition related costs have been capitalized due to the adoption of ASU 2017-01"Business Combinations (Topic 805): Clarifying the Definition of a Business"

For the Year Ended December 31,
20232022
Net Income$850,453 $921,156 
Adjusted to exclude:
Gain on real estate transactions— (14,249)
Equity in earnings and dividend income from unconsolidated real estate entities(54,835)(41,428)
Interest expense419,035 219,171 
Non-cash interest expense related to amortization of discount on Life Storage unsecured senior notes18,786 — 
Depreciation and amortization506,053 288,316 
Income tax expense21,559 20,925 
Transaction costs— 1,548 
Life Storage Merger transition costs66,732 — 
General and administrative146,408 129,251 
Management fees, other income and interest income(186,843)(153,326)
Net tenant insurance(176,806)(151,971)
Non same-store rental revenue(660,292)(139,370)
Non same-store operating expense235,870 73,772 
Total same-store net operating income$1,186,120 $1,153,795 
Comparison of the Year Ended December 31, 20162022 to the Year Ended December 31, 20152021


OurThe same-store poolresults for the periods presented consists of 564 stores that are wholly-owned and operated and that were stabilized by the first day of the earliest calendar year presented. We consider a store to be stabilized once it has been open for three years or has sustained average square foot occupancy of 80% or more for one calendar year. We believe that by providing same-store results from a stabilized pool of stores, with accompanying operating metrics including, but not limited to: occupancy, rental revenue growth, operating expense growth, net operating income growth, etc., investors are able to evaluate operating performance without the effects of non-stabilized occupancy levels, rent levels, expense levels, acquisitions or completed developments.  Same-store results should not be used as a basis for future same-store performance or for the performance of our stores as a whole. The following table presents operating data for our same-store portfolio.


 For the Three Months Ended December 31, Percent For the Year Ended December 31, Percent
 2016 2015 Change 2016 2015 Change
Same-store rental and tenant reinsurance revenues$179,003
 $170,234
 5.2% $708,063
 $662,213
 6.9%
Same-store operating and tenant reinsurance expenses46,169
 47,142
 (2.1)% 189,973
 187,939
 1.1%
Same-store net operating income$132,834
 $123,092
 7.9% $518,090
 $474,274
 9.2%
            
Same-store square foot occupancy as of quarter end92.0% 92.8%   92.0% 92.8%  
            
Properties included in same-store564
 564
   564
 564
  

Same-store revenues for the three months and year endedDecember 31, 2016 increased due2022 compared to gains in occupancy and higher rental rates for both new and existing customers. Expenses were lower for the three months ended December 31, 2016 due to decreases across most expense categories. The most significant decreases were2021 was included in repairs and maintenance and utilities. Expenses increasedour Annual Report on Form 10-K for the year ended December 31, 2016 primarily due to higher property taxes2022 on page 20, under Part II, Item 7, “Management’s Discussion and credit card processing fees.

The following table presents a reconciliationAnalysis of same-store net operating income to net income as presentedFinancial Condition and Results of Operations,” which was filed with the SEC on our condensed consolidated statements of operations for the periods indicated:February 28, 2023.
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 For the Three Months Ended December 31, For the Year Ended December 31,
 2016 2015 2016 2015
Net Income$90,416
 $11,744
 $397,089
 $209,536
Adjusted to exclude:       
Gain (loss) on real estate transactions, earnout from prior acquisition and sale of other assets1,349
 
 (8,465) (1,501)
Equity in earnings of unconsolidated joint ventures(3,082) (3,297)
(12,895)
(12,351)
Equity in earnings of unconsolidated real estate ventures - gain on sale of real estate assets and purchase of joint venture partners' interests(4,767) 
 (69,199) (2,857)
Acquisition related costs and other2,987
 63,698
      12,111
 69,401
Interest expense37,088
 31,741
 138,459
 98,992
Depreciation and amortization49,158
 40,766
 182,560
 133,457
Income tax expense4,843
 3,154
 15,847
 11,148
General and administrative (includes stock compensation)18,355
 18,138
 81,806
 67,758
Management fees, other income and interest income(12,312) (13,225) (50,840) (42,472)
Non same store rental and tenant reinsurance revenue(72,364) (45,333) (243,970) (85,896)
Non same store operating and tenant reinsurance expense21,163
 15,706
 75,587
 29,059
Total Same Store NOI$132,834
 $123,092
 $518,090
 $474,274
        



CASH FLOWS
Comparison of the Year Ended December 31, 2017 to the Year Ended December 31, 2016
Cash provided byflows from operating activities was $597,375 and $539,263 for the years ended December 31, 2017 and 2016, respectively. The change when compared to the prior year was primarilyincreased as expected due to a $117,133 increaseour continued growth in net income, a decrease in gain on sale of real estate assetsrevenues and purchase joint venture partners' interests of $69,199 and an increase in depreciation and amortization expense of $10,736. The increases were partially offset by a $104,324through the increase in the gain on real estate


transactions, earnout from prior acquisitionnumber of properties we own and impairment of real estate, as well as decreases of $20,590 in accounts payable and accrued expenses, and $11,713 in other assets.
operate. Cash flows used in investing activities was $369,556relate primarily to our acquisitions and $1,032,035, for the years ended December 31, 2017 and 2016, respectively. The decrease was primarily due to a decreasedevelopment of new stores, sales of stores, investments in total cash paid for the acquisition ofunconsolidated real estate assets of $433,338. We purchased 46 stores during the year ended December 31, 2017, compared to 99 stores purchased during 2016. There was also an increase in proceeds from sale of real estate assets, investments in real estate venturesentities and other assets of $251,352 and a decrease in cash paid on the purchase/issuance of notes receivable of $26,429 for the year ended December 31, 2017 when compared to 2016.
from bridge loans, and fluctuate depending on our actions in those areas. Cash used inflows from financing activities was $215,994 fordepend primarily on our debt and equity financing activities. A summary of cash flows along with significant components are as follows:
For the Year Ended December 31,
202320222021
Net cash provided by operating activities$1,402,474 $1,238,139 $952,436 
Net cash used in investing activities(1,818,256)(1,648,459)(837,540)
Net cash provided by (used in) financing activities423,130 431,861 (166,711)
Significant components of net cash flow included:
Net income$850,453 $921,156 $877,758 
Depreciation and amortization506,053 288,316 241,879 
Acquisition, development and redevelopment of stores(420,892)(1,353,510)(1,289,524)
Life Storage Merger, net of cash acquired(1,182,411)— — 
Cash paid for business combination— (157,302)— 
Gain on real estate transactions— (14,249)(140,760)
Investment in unconsolidated real estate entities(180,279)(118,963)(54,602)
Issuance and purchase of notes receivable(330,499)(529,245)(317,482)
Proceeds from sale of notes receivable167,495 210,048 172,002 
Principal payments received from notes receivable142,192 283,636 51,463 
Proceeds from the sale of common stock, net of offering costs— — 273,189 
Proceeds from sale of real estate assets and investments in real estate ventures2,132 39,367 572,728 
Net proceeds from our debt financing and repayment activities1,574,019 1,376,411 206,691 
Repurchase of common stock— (63,008)— 
Proceeds from issuance of public bonds, net— — — 
Dividends paid on common stock(1,046,341)(805,311)(600,994)

We believe that cash flows generated by operations, along with our existing cash and cash equivalents, the year ended December 31, 2017, compared to cash provided by financing activitiesavailability of $460,831 for the year ended December 31, 2016. The change related primarily to a decrease in proceeds from notes payable and revolvingfunds under our existing lines of credit, and our access to capital markets will be sufficient to meet all of $574,734 and a decrease in net proceeds fromour reasonably anticipated cash needs during the sale of common stock of $123,424next twelve months. These cash needs include operating expenses, monthly debt service payments, recurring capital expenditures, acquisitions, funding for the year ended December 31, 2017 when comparedbridge loan program, building redevelopments and expansions, distributions to the prior year.unit holders and dividends to stockholders necessary to maintain our REIT qualification.

We expect to generate positive cash flow from operations and we consider projected cash flows in our sources and uses of cash. These decreases were partially offsetcash flows are principally derived from rents paid by a decreaseour tenants. A significant deterioration in principal paymentsprojected cash flows from operations could cause us to increase our reliance on notes payable and revolvingavailable funds under our existing lines of credit, curtail planned capital expenditures, or seek other additional sources of $33,763.financing.
Comparison of the Year Ended December 31, 2016 to the Year Ended December 31, 2015
Cash provided by operating activities was $539,263 and $367,329 for the years ended December 31, 2016 and 2015, respectively. The change when compared to the prior year was primarily due to a $187,553 increase in net income and an increase in depreciation and amortization expense of $49,103. These increases were offset by an increase in the gain on sale of real estate assets and purchase joint venture partners’ interests of $66,342. This gain was primarily the result of three step acquisitions of stores that were previously owned by our VRS, PRISA II and WCOT joint ventures, along with the gain on the sale of our remaining interest in the PRISA II joint venture to Prudential.
Cash used in investing activities was $1,032,035 and $1,625,664, for the years ended December 31, 2016 and 2015, respectively. The decrease was primarily due to a decrease in total cash paid for the acquisition of real estate assets of $464,227. We purchased 99 stores during the year ended December 31, 2016, compared to 171 stores purchased during 2015. There was also an increase in proceeds from sale of real estate assets, investments in real estate ventures and other assets of $60,013, a decrease in cash paid on the purchase/issuance of notes receivable of $57,902 and an increase in cash received from principal payments on notes receivable of $42,785 for the year ended December 31, 2016 when compared to 2015.
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Cash provided by financing activities was $460,831 and $1,286,471, for the years ended December 31, 2016 and 2015, respectively. The change related primarily to a decrease in proceeds from notes payable and revolving lines of credit of $221,445, a decrease in net proceeds from the issuance of exchangeable senior notes of $563,500, and a decrease in net proceeds from the sale of common stock of $323,453 for the year ended December 31, 2016 when compared to the prior year. These decreases were partially offset by a decrease in principal payments on notes payable and revolving lines of credit of $191,128 and a decrease in the cash paid for the repurchase of exchangeable senior notes of $205,017.

LIQUIDITY AND CAPITAL RESOURCES
Financing Strategy
We will continue to employ leverage in our capital structure in amounts reviewed from time to time by our board of directors. Although our board of directors has not adopted a policy which limits the total amount of indebtedness that we may incur, we will consider a number of factors in evaluating our level of indebtedness from time to time, as well as the amount of such indebtedness that will be either fixed or variable rate. In making financing decisions, we will consider factors including but not limited to:
 
the interest rate of the proposed financing;
the extent to which the financing impacts flexibility in managing our stores;
prepayment penalties and restrictions on refinancing;
the purchase price of stores acquired with debt financing;
long-term objectives with respect to the financing;
target investment returns;
the ability of particular stores, and our Companycompany as a whole, to generate cash flow sufficient to cover expected debt service payments;


overall level of consolidated indebtedness;
timing of debt maturities;
provisions that require recourse and cross-collateralization; and
corporate credit ratios including fixed charge coverage ratio and max secured/unsecured indebtedness.
Our indebtedness may be recourse, non-recourse, cross-collateralized, cross-defaulted, secured or unsecured. In addition, we may invest in stores subject to existing loans collateralized by mortgages or similar liens, or may refinance stores acquired on a leveraged basis. We may use the proceeds from any borrowings to refinance existing indebtedness, to refinance investments, including the redevelopment of existing stores, for general working capital or to purchase additional interests in partnerships or joint ventures or for other purposes when we believe it is advisable.
As of December 31, 2017,2023, we had $55,683$99,062 available in cash and cash equivalents. Our cash and cash equivalents are held in accounts managed by third party financial institutions and consist of invested cash and cash in our operating accounts. During 20172023 and 2016,2022, we experienced no loss or lack of access to our cash or cash equivalents; however, there can be no assurance that access to our cash and cash equivalents will not be impacted by adverse conditions in the financial markets.
As of December 31, 2017,2023, we had $4,601,322$11,346,105 face value of debt, resulting in a debt to total enterprise value ratio of 28.1%24.2%. As of December 31, 2016,2022, we had $4,363,697$7,364,424 face value of debt, resulting in a debt to total enterprise value ratio of 29.6%25.8%. As of December 31, 2017,2023, the ratio of total fixed-rate debt and other instruments to total debt was 74.7%73.4% (including $2,283,049$1,448,566 on which we have interest rate swaps that have been included as fixed-rate debt). As of December 31, 2016,2022, the ratio of total fixed-rate debt and other instruments to total debt was 70.0%64.7% (including $2,198,275$1,837,714 on which we have interest rate swaps that have been included as fixed-rate debt). The weighted average interest rate of the total of fixed- and variable-rate debt at December 31, 20172023 and 20162022 was 3.3%4.6% and 3.0%4.1%, respectively. As of December 31, 2023, the weighted average interest rate for all fixed rate debt was 3.9%, and the weighted average interest rate on all variable rate debt was 6.6%. As of December 31, 2022, the weighted average interest rate for all fixed rate debt was 3.4%, and the weighted average interest rate on all variable rate debt was 5.5%.
In January 2021, we received a Baa2 rating from Moody's Investors Service and in July 2019, we obtained a BBB/Stable rating from S&P which was upgraded to BBB+/Stable in July 2023 in connection with the Life Storage Merger. We intend to manage our balance sheet to preserve such ratings. Certain of our real estate assets are pledged as collateral for our debt. We have a total of 1671 unencumbered stores as defined by our public bonds. Our unencumbered asset value is calculated as $31,869,102 and our total asset value is calculated as $37,529,884 according to the calculations as defined by our public bonds. We are subject to certain restrictive covenants relating to our outstanding debt. We were in compliance with all financial covenants at December 31, 2017.2023.
We expect to fund our short-term and long-term liquidity requirements, including operating expenses, recurring capital expenditures, dividends to stockholders, distributions to holders of Operating Partnership units and interest on our outstanding indebtedness, out of our operating cash flow, cash on hand and borrowings under our revolving lines of credit. In addition, we are pursuing additional sources of financing based on anticipated funding needs.
Our liquidity needs consist primarily of cashoperating expenses, monthly debt service payments, recurring capital expenditures, distributions to unit holders and dividends to stockholders store acquisitions, principal payments undernecessary to maintain our borrowings and non-recurring capital expenditures.REIT qualification. We may from time to time seek to repurchase our outstanding debt, shares of common stock or other securities in open market
30



purchases, privately negotiated transactions or otherwise. Such repurchases, if any, will depend on prevailing market conditions, our liquidity requirements, contractual restrictions and other factors. In addition, we evaluate, on an ongoing basis, the merits of strategic acquisitions and other relationships, which may require us to raise additional funds. We may also use Operating Partnership units as currency to fund acquisitions from self-storage owners who desire tax-deferral in their exiting transactions.
OFF-BALANCE SHEET ARRANGEMENTS
Except as disclosed in the notes to our financial statements, we do not currently have any relationships with unconsolidated entities or financial partnerships, such as entities often referred to as structured finance or special purposes entities, which typically are established for the purpose of facilitating off-balance sheet arrangements or other contractually narrow or limited purposes. Further, except as disclosed in the notes to our financial statements, we have not guaranteed any obligations of unconsolidated entities nor do we have any commitments or intent to provide funding to any such entities. Accordingly, we are not materially exposed to any financing, liquidity, market or credit risk that could arise if we had engaged in these relationships.


CONTRACTUAL OBLIGATIONS
The following table presents information on future payments due by period as of December 31, 2017:
 Payments due by Period:
   Less Than     After
 Total 1 Year 1-3 Years 3-5 Years 5 Years
Operating leases$152,426
 $8,015
 $15,087
 $14,595
 $114,729
Notes payable, unsecured term loans, notes payable to trusts and revolving lines of credit         
   Interest566,857
 144,367
 232,464
 101,042
 88,984
   Principal4,601,322
 397,934
 2,036,425
 1,151,639
 1,015,324
Total contractual obligations$5,320,605
 $550,316
 $2,283,976
 $1,267,276
 $1,219,037
The operating leases above include minimum future lease payments on leases for 23 of our operating stores as well as leases of our corporate offices. Three ground leases include additional contingent rental payments based on the level of revenue achieved at the store.
As of December 31, 2017, the weighted average interest rate for all fixed rate loans was 3.3%, and the weighted average interest rate on all variable rate loans was 3.1%.
For more information on our contractual obligations related to real estate acquisitions, refer to our commitments and contingencies footnote in the notes to the consolidated financial statements in Item 8 of this Form 10-K.
SEASONALITY
The self-storage business ishas been subject to seasonal fluctuations. A greater portion of revenues and profits areis typically realized from May through September. Historically, our highest level of occupancy has been at the end of July, while our lowest level of occupancy has been in late February and early March. Results for any quarter may not be indicative of the results that may be achieved for the full fiscal year.
Item 7a.7A.     Quantitative and Qualitative Disclosures About Market Risk
Market Risk
Market risk refers to the risk of loss from adverse changes in market prices and interest rates. Our future income, cash flows and fair values of financial instruments are dependent upon prevailing market interest rates.
Interest Rate Risk
Interest rate risk is highly sensitive to many factors, including governmental monetary and tax policies, domestic and international economic and political considerations and other factors beyond our control.
As of December 31, 2017,2023, we had approximately $4.6 billion$11,346,105 in total face value debt, of which approximately $1.2 billion$3,023,152 was subject to variable interest rates (excluding debt with interest rate swaps). If LIBORbenchmark index rates were to increase or decrease by 100 basis points, the increase or decrease in interest expense on the variable rate debt would increase or decrease future earnings and cash flows by approximately $11.6 million$30,232 annually.
Interest rate risk amounts were determined by considering the impact of hypothetical interest rates on our financial instruments. These analyses do not consider the effect of any change in overall economic activity that could occur. Further, in the event of a change of that magnitude, we may take actions to further mitigate our exposure to the change. However, due to the uncertainty of the specific actions that would be taken and their possible effects, these analyses assume no changes in our financial structure.


Derivative Instruments
We use derivative instruments to help manage interest rate risk using designated hedge relationships. Interest rate swaps involve the exchange of fixed-rate and variable-rate interest payments between two parties based on a contractual underlying notional amount, but do not involve the exchange of the underlying notional amounts. See our Derivatives footnote in our Notes to consolidated financial statements in Item 8 for additional information about our use of derivative contracts.

31




Item 8.     Financial Statements and Supplementary Data
EXTRA SPACE STORAGE INC.
INDEX TO CONSOLIDATED FINANCIAL STATEMENTS
AND SCHEDULES
All other schedules have been omitted since the required information is not present or not present in amounts sufficient to require submission of the schedule, or because the information required is included in the consolidated financial statements or notes thereto.

32




Report of Independent Registered Public Accounting Firm


TheTo the Stockholders and the Board of Directors and Stockholders of Extra Space Storage Inc.
Opinion on the Financial Statements
We have audited the accompanying consolidated balance sheets of Extra Space Storage Inc. (the Company) as of December 31, 20172023 and 2016, and2022, the related consolidated statements of operations, comprehensive income, stockholders’stockholders' equity and cash flows for each of the three years in the period ended December 31, 2017,2023, and the related notes and financial statement schedule listed in the Index at Item 8 (collectively referred to as the “consolidated financial statements”). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company at December 31, 20172023 and 2016,2022, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2017,2023, in conformity with U.S. generally accepted accounting principles.
We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company’sCompany's internal control over financial reporting as of December 31, 2017,2023, based on criteria established in Internal Control-Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework), and our report dated March 1, 2018February 29, 2024 expressed an unqualified opinion thereon.

Basis for Opinion
These financial statements are the responsibility of Company’sthe 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 the critical audit matter does not alter in any way our opinion on the consolidated 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 account or disclosure to which it relates.
33



Purchase price allocation
Description of the MatterFor the year ended December 31, 2023, the Company completed the acquisition of 771 self-storage properties (“stores”) for a total purchase price of $13.0 billion. As further discussed in Notes 2 and 5 of the consolidated financial statements, the transactions were accounted for as asset acquisitions, and the purchase price was allocated based on a relative fair value of assets acquired and liabilities assumed, which consisted principally of land and buildings.
Auditing the accounting for the Company’s 2023 acquisitions of stores was subjective because the Company, with the assistance of its external valuation specialist if applicable, had to exercise a high level of management judgment in determining the estimated fair value of acquired land and buildings. Determining the fair value of acquired land was difficult due to the lack of available directly comparable land market information. The estimated fair value of the acquired buildings was based upon the estimated replacement cost, which were calculated by estimating the cost of building similar stores in comparable markets and adjusting those costs for the age, quality, and building characteristics associated with the acquired stores. Determining the fair value of the acquired buildings was challenging due to the judgment utilized by management in determining the significant assumptions utilized in, or the adjustments applied to, the valuation of each building.
How We Addressed the Matter in Our AuditWe obtained an understanding, evaluated the design, and tested the operating effectiveness of controls over management’s accounting for acquired stores, including controls over the review of significant assumptions underlying the purchase price allocation and accuracy of the underlying data used. For example, we tested controls over the determination of the fair value of the land and building assets, including the controls over the review of the valuation models and the underlying significant assumptions used to develop such estimates.
For the 2023 store acquisitions described above, our procedures included, but were not limited to, reading the purchase and sale agreements and other closing documents, evaluating whether the Company had appropriately determined the transaction was an asset acquisition or business combination and performing sensitivity analyses. For certain of these store acquisitions, we also evaluated the methods and significant assumptions used by the Company to determine the fair value of the land and buildings and tested the completeness and accuracy of the underlying data supporting the significant assumptions and estimates. Additionally, for certain of these asset acquisitions, we involved our valuation specialists to assist in the assessment of the methodology utilized by the Company, in addition to performing corroborative analyses to assess whether the conclusions in the valuation were supported by observable market data. For example, our valuation specialists used independently identified data sources to evaluate management’s selected comparable land sales and building replacement cost assumptions.
/s/ Ernst & Young LLP
We have served as the Company’s auditor since 2005.
Salt Lake City, Utah
March 1, 2018

February 29, 2024

34



Extra Space Storage Inc.
Consolidated Balance Sheets
(dollars in thousands, except share data)
 December 31, 2017 December 31, 2016
Assets:   
Real estate assets, net$7,132,431
 $6,770,447
Investments in unconsolidated real estate ventures70,091
 79,570
Cash and cash equivalents55,683
 43,858
Restricted cash30,361
 13,884
Receivables from related parties and affiliated real estate joint ventures2,847
 16,611
Other assets, net163,724
 167,076
Total assets$7,455,137
 $7,091,446
Liabilities, Noncontrolling Interests and Equity:   
Notes payable, net$3,738,497
 $3,213,588
Exchangeable senior notes, net604,276
 610,314
Notes payable to trusts, net117,444
 117,321
Revolving lines of credit94,000
 365,000
Accounts payable and accrued expenses96,087
 101,388
Other liabilities81,026
 87,669
Total liabilities4,731,330
 4,495,280
Commitments and contingencies
 
Noncontrolling Interests and Equity:   
Extra Space Storage Inc. stockholders' equity:   
Preferred stock, $0.01 par value, 50,000,000 shares authorized, no shares issued or outstanding
 
Common stock, $0.01 par value, 500,000,000 shares authorized, 126,007,091 and 125,881,460 shares issued and outstanding at December 31, 2017 and December 31, 2016, respectively1,260
 1,259
Additional paid-in capital2,569,485
 2,566,120
Accumulated other comprehensive income33,290
 16,770
Accumulated deficit(253,284) (339,257)
Total Extra Space Storage Inc. stockholders' equity2,350,751
 2,244,892
Noncontrolling interest represented by Preferred Operating Partnership units, net of $120,230 notes receivable159,636
 147,920
Noncontrolling interests in Operating Partnership213,301
 203,354
Other noncontrolling interests119
 
Total noncontrolling interests and equity2,723,807
 2,596,166
Total liabilities, noncontrolling interests and equity$7,455,137
 $7,091,446
December 31, 2023December 31, 2022
Assets:
Real estate assets, net$24,555,873 $9,997,978 
Real estate assets - operating lease right-of-use assets227,241 221,725 
Investments in unconsolidated real estate entities1,071,617 582,412 
Investments in debt securities and notes receivable904,769 858,049 
Cash and cash equivalents99,062 92,868 
Other assets, net597,700 414,426 
Total assets$27,456,262 $12,167,458 
Liabilities, Noncontrolling Interests and Equity:
Notes payable, net$1,273,549 $1,288,555 
Unsecured term loans, net2,650,581 2,340,116 
Unsecured senior notes, net6,410,618 2,757,791 
Revolving lines of credit682,000 945,000 
Operating lease liabilities236,515 229,035 
Cash distributions in unconsolidated real estate ventures71,069 67,352 
Accounts payable and accrued expenses334,518 171,680 
Other liabilities383,463 289,655 
Total liabilities12,042,313 8,089,184 
Commitments and contingencies
Noncontrolling Interests and Equity:
Extra Space Storage Inc. stockholders' equity:
Preferred stock, $0.01 par value, 50,000,000 shares authorized, no shares issued or outstanding— — 
Common stock, $0.01 par value, 500,000,000 shares authorized, 211,278,803 and 133,921,020 shares issued and outstanding at December 31, 2023 and 2022, respectively2,113 1,339 
Additional paid-in capital14,750,388 3,345,332 
Accumulated other comprehensive income17,435 48,798 
Accumulated deficit(379,015)(135,872)
Total Extra Space Storage Inc. stockholders' equity14,390,921 3,259,597 
Noncontrolling interest represented by Preferred Operating Partnership units, net222,360 261,502 
Noncontrolling interests in Operating Partnership, net and other noncontrolling interests800,668 557,175 
Total noncontrolling interests and equity15,413,949 4,078,274 
Total liabilities, noncontrolling interests and equity$27,456,262 $12,167,458 
See accompanying notes.

notes

35



Extra Space Storage Inc.
Consolidated Statements of Operations
(dollars in thousands, except share data)
 For the Year Ended December 31,
 2017 2016 2015
Revenues:     
Property rental$967,229
 $864,742
 $676,138
Tenant reinsurance98,401
 87,291
 71,971
Management fees and other income39,379
 39,842
 34,161
Total revenues1,105,009
 991,875
 782,270
Expenses:     
Property operations271,974
 250,005
 203,965
Tenant reinsurance19,173
 15,555
 13,033
Acquisition related costs and other
 12,111
 69,401
General and administrative78,961
 81,806
 67,758
Depreciation and amortization193,296
 182,560
 133,457
Total expenses563,404
 542,037
 487,614
Income from operations541,605
 449,838
 294,656
Gain (loss) on real estate transactions, earnout from prior acquisitions and impairment of real estate112,789
 8,465
 1,501
Interest expense(153,511) (133,479) (95,682)
Non-cash interest expense related to amortization of discount on equity component of exchangeable senior notes(5,103) (4,980) (3,310)
Interest income3,801
 6,148
 3,461
Interest income on note receivable from Preferred Operating Partnership unit holder2,935
 4,850
 4,850
Income before equity in earnings of unconsolidated real estate ventures and income tax expense502,516
 330,842
 205,476
Equity in earnings of unconsolidated real estate ventures15,331
 12,895
 12,351
Equity in earnings of unconsolidated real estate ventures - gain on sale of real estate assets and purchase of joint venture partners' interests
 69,199
 2,857
Income tax expense(3,625) (15,847) (11,148)
Net income514,222
 397,089
 209,536
Net income allocated to Preferred Operating Partnership noncontrolling interests(14,989) (14,700) (11,718)
Net income allocated to Operating Partnership and other noncontrolling interests(20,220) (16,262) (8,344)
Net income attributable to common stockholders$479,013
 $366,127
 $189,474
Earnings per common share     
Basic$3.79
 $2.92
 $1.58
Diluted$3.76
 $2.91
 $1.56
Weighted average number of shares     
Basic125,967,831
 125,087,554
 119,816,743
Diluted134,155,771
 125,948,076
 126,918,869
 For the Year Ended December 31,
 202320222021
Revenues:
Property rental$2,222,578 $1,654,735 $1,340,990 
Tenant reinsurance235,680 185,531 170,108 
Management fees and other income101,986 83,904 66,264 
Total revenues2,560,244 1,924,170 1,577,362 
Expenses:
Property operations612,036 435,342 368,608 
Tenant reinsurance58,874 33,560 29,488 
Transaction costs— 1,548 — 
Life Storage Merger transition costs66,732 — — 
General and administrative146,408 129,251 102,194 
Depreciation and amortization506,053 288,316 241,879 
Total expenses1,390,103 888,017 742,169 
Gain on real estate transactions— 14,249 140,760 
Income from operations1,170,141 1,050,402 975,953 
Interest expense(419,035)(219,171)(166,183)
Non-cash interest expense related to amortization of discount on Life Storage unsecured senior notes(18,786)— — 
Interest income84,857 69,422 49,703 
Income before equity in earnings and dividend income from unconsolidated real estate entities and income tax expense817,177 900,653 859,473 
Equity in earnings and dividend income from unconsolidated real estate entities54,835 41,428 32,358 
Equity in earnings of unconsolidated real estate ventures - gain on sale of real estate assets— — 6,251 
Income tax expense(21,559)(20,925)(20,324)
Net income850,453 921,156 877,758 
Net income allocated to Preferred Operating Partnership noncontrolling interests(9,011)(17,623)(14,697)
Net income allocated to Operating Partnership and other noncontrolling interests(38,244)(42,845)(35,412)
Net income attributable to common stockholders$803,198 $860,688 $827,649 
Earnings per common share
Basic$4.74 $6.41 $6.20 
Diluted$4.74 $6.41 $6.19 
Weighted average number of shares
Basic169,216,989 134,050,815 133,374,938 
Diluted169,220,882 141,681,388 140,016,028 
See accompanying notes.

notes

36



Extra Space Storage Inc.
Consolidated Statements of Comprehensive Income
(amounts in thousands)
 For the Year Ended December 31,
 2017 2016 2015
Net income$514,222
 $397,089
 $209,536
Other comprehensive income (loss):     
   Change in fair value of interest rate swaps17,308
 24,598
 (4,929)
Total comprehensive income531,530
 421,687
 204,607
   Less: comprehensive income attributable to noncontrolling interests35,997
 32,438
 20,001
Comprehensive income attributable to common stockholders$495,533
 $389,249
 $184,606
 For the Year Ended December 31,
 202320222021
Net income$850,453 $921,156 $877,758 
Other comprehensive income:
   Change in fair value of interest rate swaps(32,752)96,249 59,325 
Total comprehensive income817,701 1,017,405 937,083 
   Less: comprehensive income attributable to noncontrolling interests45,866 65,373 52,887 
Comprehensive income attributable to common stockholders$771,835 $952,032 $884,196 
See accompanying notes

37





Extra Space Storage Inc.
Consolidated Statements of Stockholders' Equity
(amounts in thousands, except share data)
 Noncontrolling InterestsExtra Space Storage Inc. Stockholders' Equity 
 Preferred Operating PartnershipOperating PartnershipOther  Additional Paid-in CapitalAccumulated Other Comprehensive Income (Loss)Accumulated DeficitTotal Noncontrolling Interests and Equity
 SharesPar Value
Balances at December 31, 2020$172,052 $215,892 $401 131,357,961 $1,314 $3,000,458 $(99,093)$(354,900)$2,936,124 
Issuance of common stock upon the exercise of options— — — 62,322 — 4,572 — — 4,572 
Issuance of common stock in connection with share based compensation— — — 148,228 — 17,303 — — 17,303 
Restricted stock grants cancelled— — — (12,808)— — — — — 
Issuance of common stock, net of offering costs— — — 2,185,685 22 273,167 — — 273,189 
Redemption of Operating Partnership units for stock— (6,373)— 165,652 6,371 — — — 
Redemption of Preferred B Units in the Operating Partnership for stock(2,834)— — 15,265 2,833 — — — 
Redemption of Operating Partnership units for cash— (173)— — — (615)— — (788)
Repayment of receivable with Operating Partnership units pledged as collateral— 411 — — — — — — 411 
Issuance of Operating Partnership units in conjunction with acquisitions— 188,319 — — — — — — 188,319 
Issuance of Preferred D units in the Operating Partnership in conjunction with acquisitions88,074 — — — — — — — 88,074 
Purchase of remaining equity interest in existing consolidated joint venture— — — — — (18,141)— — (18,141)
Noncontrolling interest in consolidated joint venture— — (82)— — — — — (82)
Net income (loss)14,697 35,414 (2)— — — — 827,649 877,758 
Other comprehensive income366 2,412 — — — — 56,547 — 59,325 
Distributions to Operating Partnership units held by noncontrolling interests(13,245)(25,849)— — — — — — (39,094)
Dividends paid on common stock at $4.50 per share— — — — — — — (600,994)(600,994)
Balances at December 31, 2021$259,110 $410,053 $317 133,922,305 $1,339 $3,285,948 $(42,546)$(128,245)$3,785,976 
38



Extra Space Storage Inc.
Consolidated Statements of Stockholders' Equity
(amounts in thousands, except share data)
      
 Noncontrolling Interests Extra Space Storage Inc. Stockholders' Equity  
 Preferred Operating Partnership Operating Partnership Other     Additional Paid-in Capital Accumulated Other Comprehensive Income Accumulated Deficit Total Noncontrolling Interests and Equity
 Series A Series B Series C Series D  Shares Par Value 
Balances at Balances at December 31, 2014$14,809
 $41,903
 $10,730
 $13,710
 $92,422
 $984
 116,360,239
 $1,163
 $1,995,484
 $(1,484) $(257,738) $1,911,983
Issuance of common stock upon the exercise of options
 
 
 
 
 
 79,974
 1
 1,541
 
 
 1,542
Restricted stock grants issued
 
 
 
 
 
 174,558
 2
 
 
 
 2
Restricted stock grants cancelled
 
 
 
 
 
 (18,090) 
 
 
 
 
Issuance of common stock, net of offering costs
 
 
 
 
 
 6,735,000
 67
 446,810
 
 
 446,877
Compensation expense related to stock-based awards
 
 
 
 
 
 
 
 6,055
 
 
 6,055
Purchase of remaining equity interest in existing consolidated joint venture
 
 
 
 
 (822) 
 
 (446) 
 
 (1,268)
Issuance of Operating Partnership units in conjunction with acquisitions
 
 
 
 142,399
 
 
 
 
 
 
 142,399
Redemption of Operating Partnership units for common stock
 
 
 
 (28,106) 
 787,850
 8
 28,098
 
 
 
Repurchase of equity portion of 2013 exchangeable senior notes
 
 
 
 
 
 
 
 (70,112) 
 
 (70,112)
Issuance of 2015 exchangeable senior notes - equity component
 
 
 
 
 
 
 
 22,597
 
 
 22,597
Net income6,445
 2,514
 2,074
 685
 8,344
 
 
 
 
 
 189,474
 209,536
Other comprehensive income (loss)(15) 
 
 
 (46) 
 
 
 
 (4,868) 
 (4,929)
Tax effect from vesting of restricted stock grants and stock option exercises
 
 
 
 
 
 
 
 1,727
 
 
 1,727
Distributions to Operating Partnership units held by noncontrolling interests(7,050) (2,515) (2,074) (685) (12,179) 
 
 
 
 
 
 (24,503)
Dividends paid on common stock at $2.24 per share
 
 
 
 
 
 
 
 
 
 (269,302) (269,302)
Balances at Balances at December 31, 2015$14,189
 $41,902
 $10,730
 $13,710
 $202,834
 $162
 124,119,531
 $1,241
 $2,431,754
 $(6,352) $(337,566) $2,372,604


Extra Space Storage Inc.
Consolidated Statements of Stockholders' Equity
(amounts in thousands, except share data)
 Noncontrolling InterestsExtra Space Storage Inc. Stockholders' Equity 
 Preferred Operating PartnershipOperating PartnershipOther  Additional Paid-in CapitalAccumulated Other Comprehensive Income (Loss)Accumulated DeficitTotal Noncontrolling Interests and Equity
 SharesPar Value
Balances at December 31, 2021$259,110 $410,053 $317 133,922,305 $1,339 $3,285,948 $(42,546)$(128,245)$3,785,976 
Issuance of common stock in connection with share based compensation— — — 204,349 21,386 — — 21,388 
Restricted stock grants cancelled— — — (10,614)— — — — — 
Redemption of Operating Partnership units for cash— (1,654)— — — (2,963)— — (4,617)
Redemption of Preferred B Units in the Operating Partnership for cash(4,500)— — — — — — — (4,500)
Issuance of Operating Partnership units in conjunction with business combinations— 16,000 — — — — — — 16,000 
Issuance of Operating Partnership units in conjunction with acquisitions— 125,000 — — — — — — 125,000 
Issuance of Preferred D units in the Operating Partnership in conjunction with business combinations6,000 — — — — — — — 6,000 
Issuance of common stock in conjunction with acquisitions— — — 186,766 40,961 — — 40,963 
Repurchase of common stock, net of offering costs— — — (381,786)(4)— — (63,004)(63,008)
Noncontrolling interest in consolidated joint venture— — 771 — — — — — 771 
Net income (loss)17,623 42,853 (8)— — — — 860,688 921,156 
Other comprehensive income577 4,328 — — — — 91,344 — 96,249 
Distributions to Operating Partnership units held by noncontrolling interests(17,308)(40,485)— — — — — — (57,793)
Dividends paid on common stock at $6.00 per share— — — — — — — (805,311)(805,311)
Balances at December 31, 2022$261,502 $556,095 $1,080 133,921,020 $1,339 $3,345,332 $48,798 $(135,872)$4,078,274 
39



Extra Space Storage Inc.
Consolidated Statements of Stockholders' Equity
(amounts in thousands, except share data)
      
 Noncontrolling Interests Extra Space Storage Inc. Stockholders' Equity  
 Preferred Operating Partnership Operating Partnership Other     Additional Paid-in Capital Accumulated Other Comprehensive Income Accumulated Deficit Total Noncontrolling Interests and Equity
 Series A Series B Series C Series D  Shares Par Value 
Balances at Balances at December 31, 2015$14,189
 $41,902
 $10,730
 $13,710
 $202,834
 $162
 124,119,531
 $1,241
 $2,431,754
 $(6,352) $(337,566) $2,372,604
Issuance of common stock upon the exercise of options
 
 
 
 
 
 97,855
 
 1,444
 
 
 1,444
Restricted stock grants issued
 
 
 
 
 
 119,931
 2
 

 
 
 2
Restricted stock grants cancelled
 
 
 
 
 
 (9,947) 
 
 
 
 
Issuance of common stock, net of offering costs
 
 
 
 
 
 1,381,300
 14
 123,408
 
 
 123,422
Compensation expense related to stock-based awards
 
 
 
 
 
 
 
 8,045
 
 
 8,045
Purchase of remaining equity interest in existing consolidated joint venture
 
 
 
 800
 (162) 
 
 (638) 
 
 
Issuance of Operating Partnership units in conjunction with acquisitions
 
 
 
 7,247
 
 
 
 
 
 
 7,247
Redemption of Operating Partnership units for sale of property
 
 
 
 (7,689) 
 
 
 

 
 
 (7,689)
Redemption of Operating Partnership units for common stock and cash
 
 
 
 (1,083) 
 23,850
 
 577
 
 
 (506)
Issuance of Preferred D Units in the Operating Partnership in conjunction with acquisitions
 
 
 67,193
 
 
 
 
 
 
 
 67,193
Repurchase of equity portion of 2013 exchangeable senior notes
 
 
 
 
 
 148,940
 2
 (874) 
 
 (872)
Net income7,645
 2,514
 2,570
 1,971
 16,262
 
 
 
 
 
 366,127
 397,089
Other comprehensive income201
 
 
 
 1,275
 
 
 
 
 23,122
 
 24,598
Tax effect from vesting of restricted stock grants and stock option exercises
 
 
 
 
 
 
 
 2,404
 
 
 2,404
Distributions to Operating Partnership units held by noncontrolling interests(7,650) (2,514) (2,570) (1,971) (16,292) 
 
 
 
 
 
 (30,997)
Dividends paid on common stock at $2.93 per share
 
 
 
 
 
 
 
 
 
 (367,818) (367,818)
Balances at Balances at December 31, 2016$14,385
 $41,902
 $10,730
 $80,903
 $203,354
 $
 125,881,460
 $1,259
 $2,566,120
 $16,770
 $(339,257) $2,596,166


Extra Space Storage Inc.
Consolidated Statements of Stockholders' Equity
(amounts in thousands, except share data)
      
 Noncontrolling Interests Extra Space Storage Inc. Stockholders' Equity  
 Preferred Operating Partnership Operating Partnership Other     Additional Paid-in Capital Accumulated Other Comprehensive Income Accumulated Deficit Total Noncontrolling Interests and Equity
 Series A Series B Series C Series D  Shares Par Value 
Balances at Balances at December 31, 2016$14,385
 $41,902
 $10,730
 $80,903
 $203,354
 $
 125,881,460
 $1,259
 $2,566,120
 $16,770
 $(339,257) $2,596,166
Issuance of common stock upon the exercise of options
 
 
 
 
 
 38,418
 
 1,266
 
 
 1,266
Restricted stock grants issued
 
 
 
 
 
 95,392
 1
 (1) 
 
 
Restricted stock grants cancelled
 
 
 
 
 
 (8,179) 
 
 
 
 
Compensation expense related to stock-based awards
 
 
 
 
 
 
 
 9,561
 
 
 9,561
Issuance of Operating Partnership units in conjunction with acquisitions
 
 
 
 7,618
 
 
 
 
 
 
 7,618
Redemption of Operating Partnership units for cash
 
 
 
 (1,238) 
 
 
 (1,272) 
 
 (2,510)
Issuance of Preferred D Units in the Operating Partnership in conjunction with acquisitions
 
 
 11,161
 
 
 
 
 
 
 
 11,161
Noncontrolling Interest in consolidated joint venture
 
 
 
 
 216
 
 
 
 
 
 216
Repurchase of equity portion of 2013 exchangeable senior notes
 
 
 
 
 
 
 
 (6,189) 
 
 (6,189)
Net income (loss)6,300
 2,514
 2,703
 3,472
 20,317
 (97) 
 
 
 
 479,013
 514,222
Other comprehensive income106
 
 
 
 682
 
 
 
 
 16,520
 
 17,308
Distributions to Operating Partnership units held by noncontrolling interests(5,851) (2,514) (2,703) (3,472) (17,432) 
 
 
 
 
 
 (31,972)
Dividends paid on common stock at $3.12 per share
 
 
 
 
 
 
 
 
 
 (393,040) (393,040)
Balances at Balances at December 31, 2017$14,940
 $41,902
 $10,730
 $92,064
 $213,301
 $119
 126,007,091
 $1,260
 $2,569,485
 $33,290
 $(253,284) $2,723,807

Extra Space Storage Inc.
Consolidated Statements of Stockholders' Equity
(amounts in thousands, except share data)
 Noncontrolling InterestsExtra Space Storage Inc. Stockholders' Equity 
 Preferred Operating PartnershipOperating PartnershipOther  Additional Paid-in CapitalAccumulated Other Comprehensive Income (Loss)Accumulated DeficitTotal Noncontrolling Interests and Equity
 SharesPar Value
Balances at December 31, 2022$261,502 $556,095 $1,080 133,921,020 $1,339 $3,345,332 $48,798 $(135,872)$4,078,274 
Issuance of common stock in connection with share based compensation— — — 149,995 26,636 — — 26,638 
Taxes paid upon net settlement of share based compensation— — — (8,295)— (7,640)— — (7,640)
Restricted stock grants cancelled— — — (10,084)— — — — — 
Redemption of Operating Partnership units for stock— (225)— 2,803 — 225 — — — 
Redemption of Operating Partnership units for cash— (89)— — — (19)— — (108)
Redemption of Preferred A Units in the Operating Partnership for stock and cash(16,339)— — 851,698 11,015 — — (5,316)
Redemption of Preferred D Units in the Operating Partnership for stock(22,265)— — 154,307 22,263 — — — 
Redemption of Preferred D Units in the Operating Partnership for cash(377)— — — — — — — (377)
Life Storage Merger issuance of common stock and Operating Partnership units— 249,470 — 76,217,359 762 11,352,576 — — 11,602,808 
Noncontrolling interest in consolidated joint ventures— — 7,959 — — — — — 7,959 
Net income (loss)9,011 38,369 (125)— — — — 803,198 850,453 
Other comprehensive loss— (1,389)— — — — (31,363)— (32,752)
Distributions to Operating Partnership units held by noncontrolling interests(9,172)(50,477)— — — — — — (59,649)
Dividends paid on common stock at $6.48 per share— — — — — — — (1,046,341)(1,046,341)
Balances at December 31, 2023$222,360 $791,754 $8,914 211,278,803 $2,113 $14,750,388 $17,435 $(379,015)$15,413,949 
See accompanying notes.

notes

40



Extra Space Storage Inc.
Consolidated Statements of Cash Flows
(amounts in thousands)
 For the Year Ended December 31,
 202320222021
Cash flows from operating activities:
Net income$850,453 $921,156 $877,758 
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization506,053 288,316 241,879 
Amortization of deferred financing costs18,949 8,773 10,587 
Non-cash interest expense related to amortization of discount on Life Storage unsecured senior notes18,786 — — 
Compensation expense related to share-based awards26,638 21,386 17,303 
Accrual of interest income added to principal of debt securities and notes receivable(37,907)(38,412)(34,550)
Gain on real estate transactions— (14,249)(140,760)
Equity in earnings of unconsolidated real estate ventures - gain on sale of real estate assets— — (6,251)
Distributions from unconsolidated real estate ventures20,060 13,162 7,035 
Changes in operating assets and liabilities:
Other assets(32,507)695 (22,022)
Accounts payable and accrued expenses35,031 29,027 10,951 
Other liabilities(3,082)8,285 (9,494)
Net cash provided by operating activities1,402,474 1,238,139 952,436 
Cash flows from investing activities:
Acquisition of real estate assets and improvements(320,711)(1,291,491)(1,233,298)
Life Storage Merger, net of cash acquired(1,182,411)— — 
Cash paid for business combination— (157,302)— 
Development and redevelopment of real estate assets(100,181)(62,019)(56,226)
Proceeds from sale of real estate assets and investments in real estate ventures2,132 39,367 572,728 
Investment in unconsolidated real estate entities(180,279)(118,963)(54,602)
Return of investment in unconsolidated real estate ventures— 342 31,534 
Issuance and purchase of notes receivable(330,499)(529,245)(317,482)
Proceeds from sale of notes receivable167,495 210,048 172,002 
Principal payments received from notes receivable142,192 283,636 51,463 
Purchase of equipment and fixtures(15,994)(22,832)(3,659)
Net cash used in investing activities(1,818,256)(1,648,459)(837,540)
Cash flows from financing activities:
Proceeds from the sale of common stock, net of offering costs— — 273,189 
Proceeds from unsecured term loans and senior notes and revolving lines of credit8,663,003 5,584,111 5,706,981 
Principal payments on unsecured term loans and senior notes and revolving lines of credit(7,088,984)(4,207,700)(5,500,290)
Deferred financing costs(39,418)(9,321)(10,698)
Proceeds from principal payments on note receivable collateralized by OP Units— — 411 
Net proceeds from exercise of stock options— — 4,572 
Repurchase of common stock— (63,008)— 
Redemption of Preferred OP units for cash(5,377)(4,500)— 
Redemption of Operating Partnership units for cash(108)(4,617)(788)
Contributions from noncontrolling interests74 — — 
Distributions to minority investors(70)— — 
Dividends paid on common stock(1,046,341)(805,311)(600,994)
Distributions to noncontrolling interests(59,649)(57,793)(39,094)
Net cash provided by (used in) financing activities423,130 431,861 (166,711)
Net increase (decrease) in cash, cash equivalents, and restricted cash7,348 21,541 (51,815)
Cash, cash equivalents, and restricted cash, beginning of the period97,735 76,194 128,009 
Cash, cash equivalents, and restricted cash, end of the period$105,083 $97,735 $76,194 
Cash and equivalents, including restricted cash at the beginning of the period:
Cash and equivalents$92,868 $71,126 $109,124 
Restricted cash included in other assets4,867 5,068 18,885 
$97,735 $76,194 $128,009 
Cash and equivalents, including restricted cash at the end of the period:
Cash and equivalents$99,062 $92,868 $71,126 
Restricted cash included in other assets6,021 4,867 5,068 
$105,083 $97,735 $76,194 
Supplemental schedule of cash flow information
Interest paid$338,552 $197,069 $152,170 
Income taxes paid$22,753 $18,957 $26,252 
Supplemental schedule of noncash investing and financing activities:
Redemption of Operating Partnership units held by noncontrolling interests for common stock
Noncontrolling interests in Operating Partnership$(116,336)$— $(6,373)
Common stock and paid-in capital16,336 — 6,373 
Noncontrolling interests in Operating Partnership Note Receivable Payoff100,000 — — 
Redemption of Preferred Operating Partnership units for common stock
Preferred Operating Partnership units$(33,604)$— $(2,834)
Additional paid-in capital33,604 — 2,834 
Issuance of OP and Preferred OP units in conjunction with business combination
Preferred OP units issued$— $(6,000)$— 
OP units issued— (16,000)— 
Acquisition and establishment of operating lease right of use assets and lease liabilities
Real estate assets - operating lease right-of-use assets$265 $16,298 $6,655 
Operating lease liabilities(265)(16,298)(6,655)
Acquisitions of real estate assets
Real estate assets, net$— $171,703 $318,036 
Value of equity issued— (165,965)(276,393)
Net liabilities assumed— — (20,028)
Investment in unconsolidated real estate ventures— 1,085 5,383 
Finance lease liability (6,823)(26,998)
Life Storage Merger real estate assets
Real estate assets, net$13,575,501 $— $— 
Value of common stock issued(11,353,338)— — 
Unsecured senior notes(2,106,866)— — 
Value of OP units issued(249,470)— — 
Net liabilities assumed(191,077)— — 
Investment in unconsolidated real estate ventures325,250 — — 
Accrued construction costs and capital expenditures
Acquisition of real estate assets$10,508 $368 $1,323 
Accounts payable and accrued expenses(10,508)(368)(1,323)
Establishment of finance lease assets and lease liabilities
Real estate assets, net$— $— $67,992 
Other liabilities— — (67,992)
 For the Year Ended December 31,
 2017 2016 2015
Cash flows from operating activities:     
Net income$514,222
 $397,089
 $209,536
Adjustments to reconcile net income to net cash provided by operating activities:     
Depreciation and amortization193,296
 182,560
 133,457
Amortization of deferred financing costs12,289
 12,922
 7,779
Non-cash interest expense related to amortization of discount on equity component of exchangeable senior notes5,103
 4,980
 3,310
Non-cash interest expense related to amortization of premium on notes payable
 (872) (2,409)
Compensation expense related to stock-based awards9,561
 8,045
 6,055
Gain on sale of real estate assets and purchase of joint venture partners' interests
 (69,199) (2,857)
Gain on real estate transactions, earnout from prior acquisition and impairment of real estate(112,789) (8,465) (1,501)
Distributions from unconsolidated real estate ventures in excess of earnings4,567
 3,534
 4,531
Changes in operating assets and liabilities:     
Receivables from related parties and affiliated real estate joint ventures1,966
 1,367
 (1,436)
Other assets(14,694) (2,981) (1,172)
Accounts payable and accrued expenses(10,515) 10,075
 108
Other liabilities(5,631) 208
 11,928
Net cash provided by operating activities597,375
 539,263
 367,329
Cash flows from investing activities:     
Acquisition of real estate assets(653,185) (1,086,523) (349,897)
Development and redevelopment of real estate assets(31,746) (23,279) (26,931)
Acquisition of SmartStop, net of cash acquired
 
 (1,200,853)
Proceeds from sale of real estate assets, investments in real estate ventures and other assets312,165
 60,813
 800
Change in restricted cash(16,477) 16,854
 1,282
Investment in unconsolidated real estate ventures(17,944) (28,241) (3,434)
Return of investment in unconsolidated real estate ventures581
 16,953
 45,080
Purchase/issuance of notes receivable
 (26,429) (84,331)
Principal payments received from notes receivable44,869
 42,785
 
Purchase of equipment and fixtures(7,819) (4,968) (7,380)
Net cash used in investing activities(369,556) (1,032,035) (1,625,664)
Cash flows from financing activities:     
Proceeds from the sale of common stock, net of offering costs
 123,424
 446,877
Proceeds from notes payable and revolving lines of credit1,325,623
 1,900,357
 2,121,802
Principal payments on notes payable and revolving lines of credit(1,088,679) (1,122,442) (1,313,570)
Deferred financing costs(6,967) (17,486) (9,779)
Net proceeds from the issuance of 2015 exchangeable senior notes
 
 563,500
Repurchase of exchangeable senior notes(19,916) (22,195) (227,212)
Net proceeds from exercise of stock options1,266
 1,444
 1,542
Proceeds from termination of interest rate cap
 1,650
 
Purchase of interest rate cap
 
 (2,884)
Payment of earnout from prior acquisition
 (4,600) 
Redemption of Operating Partnership units held by noncontrolling interests(2,510) (506) 
Contributions from noncontrolling interests201
 
 
Dividends paid on common stock(393,040) (367,818) (269,302)
Distributions to noncontrolling interests(31,972) (30,997) (24,503)
Net cash provided by (used in) financing activities(215,994) 460,831
 1,286,471
Net increase (decrease) in cash and cash equivalents11,825
 (31,941) 28,136
Cash and cash equivalents, beginning of the period43,858
 75,799
 47,663
Cash and cash equivalents, end of the period$55,683
 $43,858
 $75,799
Supplemental schedule of cash flow information     
Interest paid$136,202
 $122,265
 $89,507
Income taxes paid5,648
 14,864
 1,782
Supplemental schedule of noncash investing and financing activities:     
Redemption of Operating Partnership units held by noncontrolling interests for common stock     
Noncontrolling interests in Operating Partnership$
 $(577) $(28,106)
Common stock and paid-in capital
 577
 28,106
Tax effect from vesting of restricted stock grants and option exercises     
Other assets$
 $2,404
 $1,727
Additional paid-in capital
 (2,404) (1,727)
Acquisitions of real estate assets     
Real estate assets, net$51,455
 $84,163
 $158,009
Value of Operating Partnership units issued(14,428) (74,440) (142,399)
Notes payable assumed(24,055) (9,723) 
Investment in unconsolidated real estate ventures(12,957) 
 
Receivables from related parties and affiliated real estate joint ventures
 
 (15,610)
Other noncontrolling interests(15) 
 
Accrued construction costs and capital expenditures     
Acquisition of real estate assets$3,509
 $8,497
 $2,332
Development and redevelopment of real estate assets1,703
 125
 
Accounts payable and accrued expenses(5,212) (8,622) (2,332)
Distribution of real estate from investments in unconsolidated real estate ventures     
Real estate assets, net$
 $25,055
 $
Investments in unconsolidated real estate ventures
 (25,055) 
Disposition of real estate assets     
Real estate assets, net$
 $(7,689) $
Operating Partnership units redeemed
 7,689
 
Acquisition of noncontrolling interests     
Operating Partnership units issued$
 $(800) $
Other noncontrolling interests
 162
 
Additional paid-in capital
 638
 
Issuance of Preferred OP Units for additional investment in unconsolidated real estate venture     
Preferred OP Units issued$(4,351) $
 $
Investment in unconsolidated real estate ventures4,351
 
 


See accompanying notes.notes
41


EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
Amounts in thousands, except store and share data, unless otherwise stated





1.     DESCRIPTION OF BUSINESS
Extra Space Storage Inc. (the “Company”) is a fully integrated, self-administered and self-managed real estate investment trust (“REIT”), formed as a Maryland corporation on April 30, 2004, to own, operate, manage, acquire, develop and redevelop professionally managed self-storage properties located throughout the United States. The Company was formed to continue the business of Extra Space Storage LLC and its subsidiaries, which had engaged in the self-storage business since 1977. The Company’s interest in its stores is held through its operating partnership, Extra Space Storage LP (the “Operating Partnership”), which was formed on May 5, 2004. The Company’s primary assets are general partner and limited partner interests in the Operating Partnership. This structure is commonly referred to as an umbrella partnership REIT, or UPREIT.
The Company invests in stores by acquiring wholly-owned stores or by acquiring an equity interest in real estate entities. At December 31, 2017,2023, the Company had direct and indirect equity interests in 1,0612,377 storage facilities. In addition, the Company managed 4221,337 stores for third parties bringing the total number of stores which it owns and/or manages to 1,483.3,714. These stores are located in 3942 states and Washington, D.C. and Puerto Rico. The Company also offers tenant reinsurance at its owned and managed stores that insures the value of goods in the storage units.
2.     SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Basis of Presentation
The consolidated financial statements are presented on the accrual basis of accounting in accordance with U.S. generally accepted accounting principles (“GAAP”) and include the accounts of the Company and its wholly- or majority-owned subsidiaries. All intercompany balances and transactions have been eliminated in consolidation.
In our Segment Information in Note 18, the numberPrinciples of segments has changed from three to two. The prior years' segment information has been reclassified to conform to the current year's presentation.
Variable Interest EntitiesConsolidation
The Company accounts for arrangements that are not controlled through voting or similar rights as variable interest entities (“VIEs”). An enterprise is required to consolidate a VIE if it is the primary beneficiary of the VIE. A VIE is created when (i) the equity investment at risk is not sufficient to permit the entity to finance its activities without additional subordinated financial support from other parties, or (ii) the entity’s equity holders as a group either: (a) lack the power, through voting or similar rights, to direct the activities of the entity that most significantly impact the entity’s economic performance, (b) are not obligated to absorb expected losses of the entity if they occur, or (c) do not have the right to receive expected residual returns of the entity if they occur. If an entity is deemed to be a VIE, the enterprise that is deemed to have a variable interest, or combination of variable interests, that provides the enterprise with a controlling financial interest in the VIE, is considered the primary beneficiary and must consolidate the VIE.
The Company has concluded that under certain circumstances when the Company enters into arrangements for the formation of joint ventures or when entering into a new bridge loan agreement, a VIE may be created under condition (i), (ii), (b) or (c) of the previous paragraph. For each VIE created, the Company has performed a qualitative analysis, including considering which party, if any, has the power to direct the activities most significant to the economic performance of each VIE and whether that party has the obligation to absorb losses of the VIE or the right to receive benefits from the VIE that could be significant to the VIE. If the Company is determined to be the primary beneficiary of the VIE, the assets, liabilities and operations of the VIE are consolidated with the Company’s financial statements.
The Company determined that its operating partnership met the definition of a VIE and is consolidated. Additionally, as of December 31, 2023 the Operating Partnership has notes payableCompany determined in addition to three trustsits operating partnership that are VIEs under condition (ii)(a) above. Since the Operating Partnership is not the primary beneficiaryit had one consolidated joint venture VIE, consisting of one store.
Substantially all of the trusts, these VIEsassets and liabilities of the Company are not consolidated.related to the operating partnership VIE. The assets and credit of the VIE can only be used to satisfy the VIE's own contractual obligations, and the VIE's creditors have no recourse to the general credit of the Company.
The Company’s investments in real estate joint ventures, where the Company has significant influence, but not control, and joint ventures which are VIEs in which the Company is not the primary beneficiary, are recorded under the equity method of accounting on the accompanying consolidated financial statements.
42


EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated



Use of Estimates
The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.
Fair Value Disclosures
Derivative financial instruments
Currently, the Company uses interest rate swaps to manage its interest rate risk. The valuation of these instruments is determined using widely accepted valuation techniques including discounted cash flow analysis on the expected cash flows of each derivative. This analysis reflects the contractual terms of the derivatives, including the period to maturity, and uses observable market-based inputs, including interest rate curves. The fair values of interest rate swaps are determined using the market standard methodology of netting the discounted future fixed cash payments and the discounted expected variable cash receipts. The variable cash receipts are based on an expectation of future interest rates (forward curves) derived from observable market interest rate forward curves.
The Company incorporates credit valuation adjustments to appropriately reflect both its own nonperformance risk and the respective counterparty’s nonperformance risk in the fair value measurements. In adjusting the fair value of its derivative contracts for the effect of nonperformance risk, the Company has considered the impact of netting and any applicable credit enhancements, such as collateral postings, thresholds, mutual puts, and guarantees. In conjunction with the Financial Accounting Standard Board’s fair value measurement guidance, the Company made an accounting policy election to measure the credit risk of its derivative financial instruments that are subject to master netting agreements on a net basis by counterparty portfolio.
Although the Company has determined that the majority of the inputs used to value its derivatives fall within Level 2 of the fair value hierarchy, the credit valuation adjustments associated with its derivatives utilize Level 3 inputs, such as estimates of current credit spreads to evaluate the likelihood of default by itself and its counterparties. However, as of December 31, 2017,2023, the Company has assessed the significance of the impact of the credit valuation adjustments on the overall valuation of its derivative positions and has determined that the credit valuation adjustments are not significant to the overall valuation of its derivatives. As a result, the Company has determined that its derivative valuations in their entirety are classified in Level 2 of the fair value hierarchy.


The table below presents the Company’s assets and liabilities measured at fair value on a recurring basis as of December 31, 2017,2023, aggregated by the level in the fair value hierarchy within which those measurements fall.
   Fair Value Measurements at Reporting Date Using
DescriptionDecember 31, 2017 Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3)
Other assets - Cash Flow Hedge Swap Agreements$38,365
 $
 $38,365
 $
Other liabilities - Cash Flow Hedge Swap Agreements$9
 $
 $9
 $
  Fair Value Measurements at Reporting Date Using
DescriptionDecember 31, 2023Quoted Prices in Active Markets for Identical Assets (Level 1)Significant Other Observable Inputs (Level 2)Significant Unobservable Inputs (Level 3)
Other assets - Cash flow hedge swap agreements$26,183 $— $26,183 $— 
Other liabilities - Cash flow hedge swap agreements$5,030 $— $5,030 $— 
There were no transfers of assets and liabilities between Level 1 and Level 2 during the year ended December 31, 2017.2023. The Company did not have any significant assets or liabilities that are re-measured on a recurring basis using significant unobservable inputs as of December 31, 20172023 or 2016.2022.
Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis
Long-lived assets held for use are evaluated for impairment when events or circumstances indicate there may be impairment. The Company reviews each store at least annually to determine if any such events or circumstances have occurred or exist. The Company focuses on stores where occupancy and/or rental income have decreased by a significant amount. For these stores, the Company determines whether the decrease is temporary or permanent, and whether the store will likely recover the lost occupancy and/or revenue in the short term. In addition, the Company reviews stores in the lease-up stage and compares actual operating results to original projections.
43


EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated



When the Company determines that an event that may indicate impairment has occurred, the Company compares the carrying value of the related long-lived assets to the undiscounted future net operating cash flows attributable to the assets. An impairment loss is recorded if the net carrying value of the assets exceeds the undiscounted future net operating cash flows attributable to the assets. The impairment loss recognized equals the excess of net carrying value over the related fair value of the assets.
When real estate assets are identified by management as held for sale, the Company discontinues depreciating the assets and estimates the fair value of the assets, net of selling costs. The Company compares the carrying value of the related long-lived assets to the undiscounted future net operating cash flows attributable to the assets (categorized within Level 3 of the fair value hierarchy). If the estimated fair value, net of selling costs, of the assets that have been identified as held for sale is less than the net carrying value of the assets, the Company would recognize a loss on the assets held for sale. The operations of assets held for sale or sold during the period are presented as part of normal operations for all periods presented.
The Company assesses annually whether there are any indicators that the value of the Company’s investments in unconsolidated real estate venturesentities may be impaired and when events or circumstances indicate that there may be impairment. An investment is impaired if management’s estimate of the fair value of the investment is less than its carrying value. To the extent impairment has occurred, and is considered to be other than temporary, the loss is measured as the excess of the carrying amount of the investment over the fair value of the investment.
The Company evaluates goodwill for impairment at least annually and whenever events, circumstances, and other related factors indicate that fair value of the related reporting unit may be less than the carrying value. If the fair value of the reporting unit is determined to exceed the aggregate carrying amount, no impairment charge is recorded. Otherwise, an impairment charge is recorded to the extent the carrying amount of the goodwill exceeds the amount that would be allocated to goodwill if the reporting unit were acquired for estimated fair value. No impairments of goodwill were recorded for any period presented herein.
As of December 31, 20172023 and 2016,2022, the Company did not have any assets or liabilities measured at fair value on a nonrecurring basis.


Fair Value of Financial Instruments
The carrying values of cash and cash equivalents, restricted cash, receivables, other financial instruments included in other assets, accounts payable and accrued expenses, variable-rate notes payable, investments in debt securities and notes receivable, revolving lines of credit and other liabilities reflected in the consolidated balance sheets at December 31, 20172023 and 2016,2022, approximate fair value.
The fair values of the Company’s notes receivable and notes receivable from Preferred and Common Operating Partnership unit holders and other fixed rate notes receivable were based on the discounted estimated future cash flow of the notes (categorized within Level 3 of the fair value hierarchy); the discount rate used approximated the current market rate for loans with similar maturities and credit quality. The fair values of the Company’s fixed rate notes payable and notes payable to trusts were estimated using the discounted estimated future cash payments to be made on such debt (categorized within Level 3 of the fair value hierarchy); the discount rates used approximated current market rates for loans, or groups of loans, with similar maturities and credit quality. The fair value of the Company’s exchangeable senior notes was estimated using an average market price for similar securities obtained from a third party.
The fair values of the Company’s fixed-rate assets and liabilities were as follows for the periods indicated:
 December 31, 2017 December 31, 2016
 Fair
Value
 Carrying
Value
 Fair
Value
 Carrying
Value
Notes receivable from Preferred Operating Partnership unit holders$113,683
 $120,230
 $125,642
 $120,230
Fixed rate notes receivable$20,942
 $20,608
 $53,450
 $52,201
Fixed rate notes payable and notes payable to trusts$2,774,242
 $2,815,085
 $2,404,996
 $2,417,558
Exchangeable senior notes$719,056
 $624,259
 $706,827
 $638,170
 December 31, 2023December 31, 2022
Fair
Value
Carrying
Value
Fair
Value
Carrying
Value
Notes receivable from Preferred and Common Operating Partnership unit holders$1,886 $1,900 $95,965 $101,900 
Fixed rate notes receivable$— $— $5,191 $5,241 
Fixed rate debt$7,482,054 $8,048,605 $4,320,014 $4,762,196 
Real Estate Assets
Real estate assets are stated at cost, less accumulated depreciation. Direct and allowable internal costs associated with the development, construction, renovation, and improvement of real estate assets are capitalized. Interest, property taxes, and other
44


EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated

costs associated with development incurred during the construction period are capitalized. The construction period begins when expenditures for the real estate assets have been made and activities that are necessary to prepare the asset for its intended use are in progress. The construction period ends when the asset is substantially complete and ready for its intended use.
EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated


Expenditures for maintenance and repairs are charged to expense as incurred. Major replacements and betterments that improve or extend the life of the asset are capitalized and depreciated over their estimated useful lives. Depreciation is computed using the straight-line method over the estimated useful lives of the buildings and improvements, which are generally between five and 39 years.
Stores purchased at the timeThe purchase of certificate of occupancy issuance and stores purchased subsequent to the Company's adoption of ASU 2017-01 on January 1, 2017 are considered asset acquisitions. As such, the purchase price is allocated to the real estate assets acquired based on their relative fair values, which are estimated using significant unobservable inputs. The value of the tangible assets, consisting of land and buildings, is determined as if vacant. Intangible assets, which represent the value of existing tenant relationships, are recorded at their relative fair values based on the avoided cost to replace the current leases. The Company measures the value of tenant relationships based on the rent lost due to the amount of time required to replace existing customers, which is based on the Company’s historical experience with turnover in its stores. Any debt assumed as part of the acquisition is recorded at fair value based on current interest rates compared to contractual rates. Acquisition-related transactionstransaction costs are capitalized as part of the purchase price.


Intangible lease rights represent: (1) purchase price amounts allocated to leases on three stores that cannot be classified as ground or building leases; these rights are amortized to expense over the life of the leases and (2) intangibles related to ground leases on eightnine stores where the leases were assumed by the Company at rates that were lower than the current market rates for similar leases. The values associated with these assumed leases were recorded as intangibles, which will be amortized over the lease terms.
Real Estate Sales
In general, sales of real estate and related profits/losses are recognized when all consideration has changed hands and risks and rewards of ownership have been transferred. Certain types of continuing involvement preclude sale treatment and related profit recognition; other forms of continuing involvement allow for sale recognition but require deferral of profit recognition.
Investments in Unconsolidated Real Estate VenturesEntities
Investments in unconsolidated real estate entities and Cash distributions in unconsolidated real estate ventures represent the Company's noncontrolling interest in real estate joint ventures that own stores and the Company's interest in preferred stock of SmartStop Self Storage REIT, Inc. ("SmartStop") and Strategic Storage Trust VI, Inc. ("Strategic Storage"), an affiliate of SmartStop. The Company’s investments in real estate joint ventures, where the Company has significant influence, but not control and joint ventures which are VIEs in which the Company is not the primary beneficiary, are recorded under the equity method of accounting in the accompanying consolidated financial statements.
Under the equity method, the Company’s investment in real estate ventures is stated at cost and adjusted for the Company’s share of net earnings or losses and reduced by distributions. Equity in earnings of real estate ventures is generally recognized based on the Company’s ownership interest in the earnings of each of the unconsolidated real estate ventures. For the purposes of presentation in the statement of cash flows, the Company follows the “look through”“nature of distribution” approach for classification of distributions from joint ventures. Under this approach, distributionscash flows are reported underclassified on the basis of the nature of the activity or activities of the investee that generated the distribution as either a return on investment (classified as a cash inflow from operating cash flow unless the facts and circumstances of a specific distribution clearly indicate that it isactivities) or a return of capital (e.g.,investment (classified as a liquidating dividend or distributioncash inflow from investing activities).
The Company evaluated its investments in preferred stock of non-public real estate entities and determined it did not have significant influence over the entity, and the investment in preferred stock does not have a readily determinable fair value, therefore it has been recorded at the transaction price. The Company periodically evaluates the investment for impairment. No impairments were recorded during the year ended December 31, 2023.
45


EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated

Investments in Debt Securities and Notes Receivable
The Company accounts for its investment in debt securities and loans receivable at amortized cost. The Company recognizes interest income related to the debt securities and notes receivable using the effective interest method, with deferred fees and costs amortized over the lives of the proceeds from the joint venture’s sale of assets), in which case it is reportedrelated loans as an investing activity.yield adjustment.
Cash and Cash Equivalents
The Company’s cash is deposited with financial institutions located throughout the United States and at times may exceed federally insured limits. The Company considers all highly liquid debt instruments with a maturity date of three months or less to be cash equivalents.
Restricted Cash
Restricted cash is comprised of letters of credit and escrowed funds deposited with financial institutions located throughout the United States relating to earnest money deposits on potential acquisitions, real estate taxes, insurance and capital expenditures.
EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated


Other Assets
Other assets consist of equipment and fixtures, rents receivable from our tenants, investments in trusts, notes and other receivables, other intangible assets, deferred tax assets, prepaid expenses and the fair value of interest rate swaps. Depreciation of equipment and fixtures is computed on a straight-line basis over three to five years.
Derivative Instruments and Hedging Activities
The Company records all derivatives on the balance sheet at fair value. The accounting for changes in the fair value of derivatives depends on the intended use of the derivative, whether the Company has elected to designate a derivative in a hedging relationship and apply hedge accounting and whether the hedging relationship has satisfied the criteria necessary to apply hedge accounting. Derivatives designated and qualifying as a hedge of the exposure to changes in the fair value of an asset, liability or firm commitment attributable to a particular risk, such as interest rate risk, are considered fair value hedges. Derivatives designated and qualifying as a hedge of the exposure to variability in expected future cash flows, or other types of forecasted transactions, are considered cash flow hedges. Hedge accounting generally provides for the matching of the timing of gain or loss recognition on the hedging instrument with the recognition of the changes in the fair value of the hedged asset or liability that are attributable to the hedged risk in a fair value hedge or the earnings effect of the hedged forecasted transactions in a cash flow hedge. The Company may enter into derivative contracts that are intended to economically hedge certain of its risk, even though hedge accounting does not apply or the Company elects not to apply hedge accounting. The Company made an accounting policy election to measure the credit risk of its derivative financial instruments that are subject to master netting agreements on a net basis by counterparty portfolio.
Risk Management and Use of Financial Instruments
In the normal course of its ongoing business operations, the Company encounters economic risk. There are three main components of economic risk: interest rate risk, credit risk and market risk. The Company is subject to interest rate risk on its interest-bearing liabilities. Credit risk is the risk of inability or unwillingness of tenants to make contractually required payments. Market risk is the risk of declines in the value of stores due to changes in rental rates, interest rates or other market factors affecting the value of stores held by the Company. The Company has entered into interest rate swap agreements to manage a portion of its interest rate risk.
ExchangeRedemption of Common Operating Partnership Units
The Company has the option to redeem common Operating Partnership Units in cash or shares of common stock. Redemption of common Operating Partnership units for shares of common stock, when redeemed under the original provisions of the Operating Partnership agreement, areis accounted for by reclassifying the underlying net book value of the units from noncontrolling interest to the Company’s equity. Redemption of common Operating Partnership units for cash is accounted for by reducing the underlying net book value of the units from noncontrolling interest.
Revenue and Expense Recognition
Rental revenues are recognized as earned based upon amounts that are currently due from tenants. Leases are generally on month-to-month terms. Prepaid rents are recognized on a straight-line basis over the term of the leases. Promotional discounts are recognized as a reduction to rental income over the promotional period. Late charges, administrative fees and merchandise sales and truck rentals are recognized as income when earned. Management fee revenues
The Company's management fees are recognized monthly as services are performed and in accordance withearned subject to the terms of the related management agreements. Equityservices agreements ("MSAs"). These MSAs provide that the Company will perform management services, which include leasing and operating the property and providing accounting, marketing, banking, maintenance and other services. These services are provided in earnings of unconsolidated real estate entities is recognizedexchange for monthly management fees, which are based on a percentage of revenues collected from stores owned by third parties and unconsolidated joint ventures. MSAs generally have original terms from three to five years, after which
46


EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated

management services are provided on a month-to-month basis unless terminated. Management fees are due on the last day of each calendar month that management services are provided.
The Company accounts for the management services provided to a customer as a single performance obligation which are rendered over time each month. The total amount of consideration from the contract is variable as it is based on monthly revenues, which are influenced by multiple factors, some of which are outside the Company's ownership interest incontrol. Therefore, the earningsCompany recognizes the revenue at the end of each month once the uncertainty is resolved. Due to the standardized terms of the unconsolidated real estate entities. Interest incomeMSAs, the Company accounts for all MSAs in a similar, consistent manner. Therefore, no disaggregated information relating to MSAs is recognized as earned.presented.
Property expenses, including utilities, property taxes, repairs and maintenance and other costs to manage the facilities are recognized as incurred. The Company accrues for property tax expense based upon invoice amounts estimates and historical trends.estimates. If these estimates are incorrect, the timing of expense recognition could be affected.
Tenant reinsurance premiums are recognized as revenue over the period of insurance coverage. The Company records an unpaid claims liability at the end of each period based on existing unpaid claims and historical claims payment history. The unpaid claims liability represents an estimate of the ultimate cost to settle all unpaid claims as of each period end, including both reported but unpaid claims and claims that may have been incurred but have not been reported. The Company uses a third party claims administrator to adjust all tenant reinsurance claims received. The administrator evaluates each claim to determine the ultimate claim loss and includes an estimate for claims that may have been incurred but not reported. Annually, a third party
EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated


actuary evaluates the adequacy of the unpaid claims liability. Prior year claim reserves are adjusted as experience develops or new information becomes known. The impact of such adjustments is included in the current period operations. The unpaid claims liability is not discounted to its present value. Each tenant chooses the amount of insurance coverage they want through the tenant reinsurance program. Tenants can purchase policies in amounts of 2,000 dollarsup to 10,000 dollars of insurance coverage in exchange for a monthly fee. As of December 31, 2017,2023, the averagetotal number of tenant insurance policies was 1.0 million, which was an aggregate coverage for tenants wasof approximately 2,800 dollars.$3.0 billion. The Company’s exposure per claim is limited by the maximum amount of coverage chosen by each tenant. The Company purchases reinsurance for losses exceeding a set amount for any one event. The Company does not currently have any amounts recoverable under the reinsurance arrangements.
For the years ended December 31, 2017, 2016 and 2015, the number of claims made were 5,671, 4,055 and 3,959, respectively. The following table presents information on the portion of the Company’s unpaid claims liability, which is included in other liabilities on the Company's consolidated balance sheets, that relates to tenant insurance for the periods indicated:
 For the Year Ended December 31,
Tenant Reinsurance Claims:2017 2016 2015
Unpaid claims liability at beginning of year$3,896
 $3,908
 $3,121
Claims and claim adjustment expense for claims incurred in the current year11,700
 7,250
 6,421
Claims and claim adjustment expense (benefit) for claims incurred in the prior years(203) 87
 
Payments for current year claims(8,895) (5,423) (4,283)
Payments for prior year claims(1,331) (1,926) (1,351)
Unpaid claims liability at the end of the year$5,167
 $3,896
 $3,908
Advertising Costs
The Company incurs advertising costs primarily attributable to internet, directorydigital and other advertising. These costs are expensed as incurred. The Company recognized $14,410, $12,867$32,795, $19,285 and $10,528$18,793 in advertising expense for the years ended December 31, 2017, 20162023, 2022 and 2015,2021, respectively, which are included in property operating expenses on the Company’s consolidated statements of operations.
Income Taxes
The Company has elected to be treated as a REIT under Sections 856 through 860 of the Internal Revenue Code of 1986, as amended ("the Internal(the "Internal Revenue Code"). In order to maintain its qualification as a REIT, among other things,requirements, the Company is required to distribute at least 90% of its REIT taxable income to its stockholders and meet certain tests regarding the nature of its income and assets. As a REIT, the Company is not subject to U.S. federal income tax with respect to that portion of its income which meets certain criteria and is distributed annually to stockholders. The Company plans to continue to operate so that it meets the requirements for taxation as a REIT. Many of these requirements, however, are highly technical and complex. For any taxable year that the Company fails to qualify as a REIT and for which applicable statutory relief provisions did not apply, wethe Company would be taxed at the regularsubject to U.S. federal corporate ratesincome tax on all of ourits taxable income for at least that year and the ensuing four years. The Company is subject to certain state and local taxes. Provision for such taxes has been included in income tax expense on the Company’s consolidated statements of operations. For the year ended December 31, 2017,2023, 0% (unaudited) of all distributions to stockholders qualified as a return of capital.
The Company owns and may acquire direct or indirect interests in entities that have elected or will elect to be taxed as REITs under the Internal Revenue Code (each, a “Subsidiary REIT ”). A Subsidiary REIT is subject to the various REIT qualification requirements and other limitations described herein that are applicable to the Company. If a Subsidiary REIT were to fail to qualify as a REIT, then (i) that Subsidiary REIT would become subject to U.S. federal income tax, (ii) shares in such Subsidiary REIT would cease to be qualifying assets for purposes of the asset tests applicable to REITs, and (iii) it is possible that the Company would fail certain of the asset tests applicable to REITs, in which event the Company would fail to qualify as a REIT unless it could avail itself of certain relief provisions.
The Company has elected to treat itscertain corporate subsidiary,subsidiaries, including Extra Space Management, Inc. (“ESMI”), as a taxable REIT subsidiary (“TRS”). In general, the Company’sa TRS may perform additional services for tenants and may engage in any real estate or non-real estate related business. A TRS is subject to U.S. federal corporate income tax.tax and may also be subject to state and local income taxes. ESM Reinsurance Limited, a wholly-owned subsidiary of ESMI, generates income from insurance premiums that are subject to U.S. federal corporate income tax and state insurance premiums tax.
47


EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated

Deferred tax assets and liabilities are determined based on differences between financial reporting and tax bases of assets and liabilities. At December 31, 20172023 and 2016,2022, there were no material unrecognized tax benefits. Interest and penalties relating to uncertain tax positions will be recognized in income tax expense when incurred. As of December 31, 20172023 and 2016,2022, the Company had no interest or penalties related to uncertain tax provisions.
EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated


Stock-Based Compensation
The measurement and recognition of compensation expense for all share-based payment awards to employees and directors are based on estimated fair values. Awards granted are valued at fair value and any compensation expense is recognized over the service periods of each award.
Earnings Per Common Share
Basic earnings per common share is computed using the two-class method by dividing net income attributable to common stockholders by the weighted average number of common shares outstanding during the period. All outstanding unvested restricted stock awards contain rights to non-forfeitable dividends and participate in undistributed earnings with common stockholders; accordingly, they are considered participating securities that are included in the two-class method. Diluted earnings per common share measures the performance of the Company over the reporting period while giving effect to all potential common shares that were dilutive and outstanding during the period. The denominator includes the weighted average number of basic shares and the number of additional common shares that would have been outstanding if the potential common shares that were dilutive had been issued, and is calculated using either the two-class, treasury stock or as if-converted method, whichever is most dilutive. Potential common shares are securities (such as options, convertible debt, Series A Participating Redeemable Preferred Units (“Series A Units”), Series B Redeemable Preferred Units (“Series B Units”), Series C Convertible Redeemable Preferred Units (“Series C Units”),and Series D Redeemable Preferred Units (“Series D Units”) and together with the Series A Units and Series B Units, the (“Preferred OP Units") and common Operating Partnership units (“OP Units”)) that do not have a current right to participate in earnings of the Company but could do so in the future by virtue of their option, redemption or conversion right.
In computing the dilutive effect of convertible securities, net income is adjusted to add back any changes in earnings in the period associated with the convertible security. The numerator also is adjusted for the effects of any other non-discretionary changes in income or loss that would result from the assumed conversion of those potential common shares. In computing diluted earnings per common share, only potential common shares that are dilutive (those that reduce earnings per common share) are included. For the years ended December 31, 2017, 2016 and 2015, options to purchase approximately 45,286, 88,552, and 62,254 shares of common stock, respectively, were excluded from the computation of earnings per share as their effect would have been anti-dilutive.
For the purposes of computing the diluted impact of the potential exchange of the Preferred Operating PartnershipOP Units for common shares upon redemption, where the Company has the option to redeem in cash or shares and where the Company has stated the intent and ability to settle the redemption in shares, Thethe Company divided the total liquidation value of the Preferred Operating Partnership unitsOP Units by the average share price of $78.59$142.16 for the year ended December 31, 2017.2023.
The following table presents the number of weighted OP Units and Preferred Operating Partnership units,OP Units, and the potential common shares, that were excluded from the computation of earnings per share as their effect would have been anti-dilutive:
 For the Year Ended December 31,
 2017 2016 2015
 Equivalent Shares (if converted) Equivalent Shares (if converted) Equivalent Shares (if converted)
Common OP Units
 5,564,631
 
Series A Units (Variable Only)
 875,480
 
Series B Units533,174
 499,966
 579,640
Series C Units377,135
 353,646
 410,002
Series D Units
 552,796
 189,649
 910,309
 7,846,519
 1,179,291
The Operating Partnership had $49,259 of its 2.375% Exchangeable Senior Notes due 2033 (the “2013 Notes”) issued and outstanding as of December 31, 2017. The 2013 Notes could potentially have a dilutive impact on the Company’s earnings per share calculations. The 2013 Notes are exchangeable by holders into shares of the Company’s common stock under certain circumstances per the terms of the indenture governing the 2013 Notes. The exchange price of the 2013 Notes was $53.05 per share as of December 31, 2017, and could change over time as described in the indenture. The Company has irrevocably agreed
EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated


to pay only cash for the accreted principal amount of the 2013 Notes relative to its exchange obligations, but retained the right to satisfy the exchange obligation in excess of the accreted principal amount in cash and/or common stock.
The Operating Partnership had $575,000 of its 3.125% Exchangeable Senior Notes due 2035 (the “2015 Notes”) issued and outstanding as of December 31, 2017. The 2015 Notes could potentially have a dilutive impact on the Company’s earnings per share calculations. The 2015 Notes are exchangeable by holders into shares of the Company’s common stock under certain circumstances per the terms of the indenture governing the 2015 Notes. The exchange price of the 2015 Notes was $93.80 per share as of December 31, 2017, and could change over time as described in the indenture. The Company has irrevocably agreed to pay only cash for the accreted principal amount of the 2015 Notes relative to its exchange obligations, but retained the right to satisfy the exchange obligation in excess of the accreted principal amount in cash and/or common stock.
Though the Company has retained that right, Accounting Standards Codification (“ASC”) 260, “Earnings per Share,” requires an assumption that shares would be used to pay the exchange obligation in excess of the accreted principal amount, and requires that those shares be included in the Company’s calculation of weighted average common shares outstanding for the diluted earnings per share computation. For the years ended December 31, 2017, 2016 and 2015, 344,430 shares, 309,730 shares and 513,040 shares, respectively, related to the 2013 Notes were included in the computation for diluted earnings per share. For the years ended December 31, 2017, 2016 and 2015, no shares related to the 2015 Notes were included in the computation for diluted earnings per share as the exchange price exceeded the per share price of the Company’s common stock during this period.
 For the Year Ended December 31,
 202320222021
 Equivalent Shares (if converted)Equivalent Shares (if converted)Equivalent Shares (if converted)
Common OP Units7,970,487 — — 
Series B Units236,130 187,664 246,618 
Series D Units1,332,049 1,140,513 726,037 
9,538,666 1,328,177 972,655 
For the purposes of computing the diluted impact on earnings per share of the potential exchange of Series A Units for common shares upon redemption, where the Company has the option to redeem in cash or shares and where the Company has stated the positive intent and ability to settle at least $101,700 of the instrument in cash (or net settle a portion of the Series A Units against the related outstanding note receivable), only the amount of the instrument in excess of $101,700 is considered in the calculation of shares contingently issuable for the purposes of computing diluted earnings per share as allowed by ASC 260-10-45-46. Accordingly, the number of shares included in the computation for diluted earnings per share related to the Series A Units is equal to the number of Series A Units outstanding, with no additional shares included related to the $101,700 fixed amount.

48


EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated


The computation of earnings per share is as follows for the periods presented:
 For the Year Ended December 31,
 202320222021
Net income attributable to common stockholders$803,198 $860,688 $827,649 
Earnings and dividends allocated to participating securities(1,230)(1,201)(1,183)
Earnings for basic computations801,968 859,487 826,466 
Income allocated to noncontrolling interest - Preferred Operating Partnership Units and Operating Partnership Units— 50,706 43,093 
Fixed component of income allocated to noncontrolling interest - Preferred Operating Partnership (Series A Units)— (2,288)(2,288)
Net income for diluted computations$801,968 $907,905 $867,271 
Weighted average common shares outstanding:
Average number of common shares outstanding - basic169,216,989 134,050,815 133,374,938 
OP Units— 6,749,995 5,752,902 
Series A Units— 875,480 875,480 
Shares related to dilutive stock options3,893 5,098 12,708 
Average number of common shares outstanding - diluted169,220,882 141,681,388 140,016,028 
Earnings per common share
Basic$4.74 $6.41 $6.20 
Diluted$4.74 $6.41 $6.19 
Recently Issued Accounting Standards
In March 2020, the FASB issued ASU 2020-04, "Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting" (“ASU 2020-04”). ASU 2020-04 provides temporary optional guidance that provides transition relief for reference rate reform, including optional expedients and exceptions for applying GAAP to contract modifications, hedging relationships and other transactions that reference LIBOR or a reference rate that is expected to be discontinued as a result of reference rate reform if certain criteria are met. ASU 2020-04 is effective upon issuance, and the provisions generally can be applied prospectively as of January 1, 2020 through December 31, 2024. The Company elected to apply the hedge accounting expedients related to probability and the assessments of effectiveness for future LIBOR-indexed cash flows to assume that the index upon which future hedged transactions will be based matches the index on the corresponding derivatives. The Company also elected to apply additional expedients related to contract modifications, changes in critical terms, and updates to the designated hedged risks as qualifying changes are made to applicable debt and derivative contracts. Application of these expedients preserves the presentation of derivatives and debt contracts consistent with past presentation. In December 2022, the FASB issued ASU 2022-06, Deferral of the Sunset Date of Topic 848 (“ASU 2022-06”) which was issued to defer the sunset date of Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform to December 31, 2024. ASU 2022-06 is effective immediately for all companies. ASU 2022-06 had no impact on the Company’s consolidated financial statements for the year ended December 31, 2022.
49
 For the Year Ended December 31,
 2017 2016 2015
Net income attributable to common stockholders$479,013
 $366,127
 $189,474
Earnings and dividends allocated to participating securities(975) (792) (601)
Earnings for basic computations478,038
 365,335
 188,873
Earnings and dividends allocated to participating securities
 792
 
Income allocated to noncontrolling interest - Preferred Operating Partnership Units and Operating Partnership Units30,088
 
 14,790
Fixed component of income allocated to noncontrolling interest - Preferred Operating Partnership Units (Series A)(3,119) 
 (5,088)
Net income for diluted computations$505,007
 $366,127
 $198,575
      
Weighted average common shares outstanding:     
Average number of common shares outstanding - basic125,967,831
 125,087,554
 119,816,743
OP Units5,590,831
 
 5,451,357
Series A Units875,480
 
 875,480
Series D Units1,081,561
 
 
Unvested restricted stock awards included for treasury stock method
 299,585
 
Shares related to exchangeable senior notes and dilutive stock options640,068
 560,937
 775,289
Average number of common shares outstanding - diluted134,155,771
 125,948,076
 126,918,869
Earnings per common share     
Basic$3.79
 $2.92
 $1.58
Diluted$3.76
 $2.91
 $1.56


EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated



Recently Issued Accounting Standards
In May 2014, the FASB issued ASU 2014-9, “Revenue from Contracts with Customers,” which amends the guidance for revenue recognition to replace numerous, industry-specific requirements and converges areas under this topic with those of the International Financial Reporting Standards. ASU 2014-9 outlines a five-step process for customer contract revenue recognition that focuses on transfer of control, as opposed to transfer of risk and rewards. The amendment also requires enhanced disclosures regarding the nature, amount, timing and uncertainty of revenues and cash flows from contracts with customers. ASU 2014-9 includes all contracts with customers to provide goods and services in the ordinary course of business, except for certain contracts that are specifically excluded from the scope, such as lease contracts and insurance contracts. Entities can transition to the standard either retrospectively or as a cumulative-effect adjustment as of the date of adoption. ASU 2014-9 will become effective for annual and interim periods beginning after December 15, 2017 with early adoption on the original effective date permitted. The Company has determined that its property rental revenue and tenant reinsurance revenue will not be subject to the guidance in ASU 2014-9, as they qualify as lease contract and insurance contracts, which are excluded from its scope. The Company's management fee revenue will be included in the scope of ASU 2014-9, however, revenue recognized under ASU 2014-9 will not differ materially from revenue recognized under existing guidance. The Company anticipates adopting the standard using the modified retrospective transition method as of January 1, 2018.
In February 2016, the FASB issued ASU 2016-02, "Leases (Topic 842)," which modifies the accounting for leases, intending to increase transparency and comparability of organizations by requiring balance sheet presentation of leased assets and increased financial statement disclosure of leasing arrangements. ASU 2016-02 will require entities to recognize a liability for their lease obligations and a corresponding asset representing the right to use the underlying asset over the lease term. Lease obligations are to be measured at the present value and accounted for using the effective interest method. The accounting for the leased asset will differ slightly depending on whether the agreement is deemed to be a financing or operating lease. For finance leases, the leased asset is depreciated on a straight-line basis and recorded separately from the interest expense in the statements of operations, resulting in higher expense in the earlier part of the lease term. For operating leases, the depreciation and interest expense components are combined, recognized evenly over the term of the lease, and presented as a reduction to operating income. ASU 2016-02 requires that assets and liabilities be presented or disclosed separately, and requires additional disclosure of certain qualitative and quantitative information related to these lease agreements. ASU 2016-02 is effective for annual periods beginning after December 15, 2018. The Company is currently assessing the impact of the adoption on ASU 2016-02 on the Company's consolidated financial statements.
In March 2016, the FASB issued ASU 2016-05, "Derivatives and Hedging (Topic 815): Effect of Derivative Contract Novations on Existing Hedge Accounting Relationships." ASU 2016-05 clarifies that a change in the counterparty to a derivative instrument that has been designated as a hedging instrument does not, in and of itself, require re-designation of that hedging relationship provided that all other hedge accounting criteria continue to be met. The Company adopted this guidance on January 1, 2017. The adoption of ASU 2016-05 did not have a material impact on the Company's consolidated financial statements.
In March 2016, the FASB issued ASU 2016-09, “Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting.” ASU 2016-09 simplifies several aspects of the accounting for employee share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. This ASU is effective for fiscal years beginning after December 15, 2016, including interim periods within those fiscal years. The Company adopted this guidance prospectively on January 1, 2017, and prior periods have not been adjusted. As a result of the adoption of this guidance, the Company no longer presents the tax effects from vesting of restricted stock grants and stock option exercises on its condensed consolidated statement of noncontrolling interests and equity.
In August 2016, the FASB issued ASU 2016-15, "Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments." ASU 2016-15 provides guidance on several specific cash flow issues, including the classification of debt prepayment or debt extinguishment costs, contingent consideration payments, and distributions received from equity method investees. This guidance is effective for fiscal years beginning after December 15, 2017. The Company does not expect the adoption of this guidance to have a material impact on its consolidated financial statements.
In October 2016, the FASB issued ASU 2016-18, "Statement of Cash Flows (Topic 230): Restricted Cash," which requires that a statement of cash flows explains the change during the period in the total of cash, cash equivalents, and amounts generally described as restricted cash or restricted cash equivalents. Therefore, amounts generally described as restricted cash and restricted cash equivalents should be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the statement of cash flows. This guidance is effective for fiscal years beginning after
EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated


December 15, 2017, and interim periods within those fiscal years. Early adoption is permitted. The Company will adopt this guidance January 1, 2018 and will begin presenting restricted cash along with cash and cash equivalents in its consolidated statements of cash flows.
In January 2017, the FASB issued ASU 2017-01, "Business Combinations (Topic 805) - Clarifying the Definition of a Business," which provides guidance on whether transactions should be accounted for as acquisitions or disposals of assets or businesses. Specifically, when substantially all of the fair value of the gross assets acquired (or disposed of) is concentrated in a single identifiable asset or a group of similar identifiable assets, the set is not a business. Additionally, ASU 2017-01 also provides other guidance providing a more robust framework to use in determining whether a set of assets and activities is a business. This guidance is effective for annual periods beginning after December 15, 2017. Early application of ASU 2017-01 is permitted for transactions for which the acquisition or disposition date occurs before the issuance date or effective date of the amendments, only when the transaction has not been reported in financial statements that have been issued. The Company adopted the guidance in ASU 2017-01 to new acquisitions beginning on January 1, 2017. The adoption of this guidance resulted in a decrease in acquisition related costs, as the Company's acquisition of operating stores are considered asset acquisitions rather than business combinations under ASU 2017-01, and such costs are capitalized under the new guidance.
In August 2017, the FASB issued ASU 2017-12, "Derivatives and Hedging (Topic 815): Targeted Improvements for Accounting for Hedging Activities," which amends and simplifies existing guidance for the financial reporting of hedging relationships to allow companies to better portray the economic effects of risk management activities in their financial statements. ASU 2017-12 is effective for annual periods beginning after December 15, 2018, with early adoption permitted. The Company plans to adopt ASU 2017-12 on January 1, 2018. ASU 2017-12 requires a modified retrospective transition method in which the Company will recognize the cumulative effect of the change on the opening balance of each affected component of equity in the consolidated balance sheets as of the date of adoption. The Company is currently assessing the impact of the adoption on ASU 2017-12 on the Company's consolidated financial statements.
3.     REAL ESTATE ASSETS
The components of real estate assets are summarized as follows:
December 31, 2023December 31, 2022
Land$4,904,705 $2,356,746 
Buildings, improvements and other intangibles21,664,224 9,425,468 
Right of use asset - finance lease143,842 136,259 
Intangible assets - tenant relationships321,019 152,775 
Intangible lease rights27,743 12,943 
27,061,533 12,084,191 
Less: accumulated depreciation and amortization(2,624,405)(2,138,524)
Net operating real estate assets24,437,128 9,945,667 
Real estate under development/redevelopment118,745 52,311 
Real estate assets, net$24,555,873 $9,997,978 
Real estate assets held for sale included in real estate assets, net$— $— 
 December 31, 2017 December 31, 2016
Land - operating$1,731,915
 $1,664,659
Land - development13,246
 26,982
Buildings, improvements and other intangibles6,286,762
 5,833,836
Intangible assets - tenant relationships114,375
 111,528
Intangible lease rights12,443
 12,443
 8,158,741
 7,649,448
Less: accumulated depreciation and amortization(1,060,060) (900,861)
Net operating real estate assets7,098,681
 6,748,587
Real estate under development/redevelopment33,750
 21,860
Net real estate assets$7,132,431
 $6,770,447
Real estate assets held for sale included in net real estate assets$10,276
 $1,970

As of December 31, 2017, the Company had one operating store and one parcel of undeveloped land classified as held for sale. The estimated fair value less selling costs of these assets are greater than the carrying value of the assets, and therefore no loss has been recorded related to the operating store held for sale. These assets held for sale are included in the self-storage operations segment of the Company’s segment information. The parcel of undeveloped land was sold in January 2018 and the Company anticipates the operating store will be sold by the end of 2018. During the second quarter of 2017, the Company recorded an impairment loss of $6,100 relating to several parcels of undeveloped land where the carrying value was greater than the fair value.
EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated


The Company amortizes to expense intangible assets—tenant relationships on a straight-line basis over the average period that a tenant is expected to utilize the facility (currently estimated at 18 months). The Company amortizes to expense the intangible lease rights over the terms of the related leases. Amortization related to the tenant relationships and lease rights was $14,349, $21,133,$59,807, $13,981, and $11,695$4,778 for the years ended December 31, 2017, 20162023, 2022 and 2015,2021, respectively. The remaining balance of the unamortized lease rights will be amortized over the next one yearfive to 4439 years. Accumulated amortization related to intangibles was $112,347317,511 and $101,120144,144 as of December 31, 20172023 and 2016,2022, respectively.

4.     OTHER ASSETS
The components of other assets are summarized as follows:
December 31, 2023December 31, 2022
Goodwill$170,811 $170,811 
Receivables, net134,716 85,937 
Prepaid expenses and deposits85,153 50,318 
Other intangible assets, net66,332 — 
Trade name50,000 — 
Fair value of interest rate swaps26,183 54,839 
Equipment and fixtures, net48,697 42,808 
Deferred line of credit financing costs, net9,787 4,846 
Restricted cash6,021 4,867 
$597,700 $414,426 
Depreciation of equipment and fixtures is computed on a straight-line basis over three to five years. The Company capitalizes certain costs during the application development stage when developing software for internal use. As of December 31, 2023 and 2022, unamortized software costs were $18,844 and $23,165. During the year ended December 31, 2023 and 2022, the Company recorded amortization expense of $5,377 and $5,147, respectively, relating to capitalized software costs.
50


EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated

5.     PROPERTY ACQUISITIONS AND DISPOSITIONS

The Life Storage Merger

On July 20, 2023, the Company closed its merger with Life Storage (the "Life Storage Merger" or "Merger"), which included 757 wholly-owned stores and one consolidated joint venture store. Under the terms of the Life Storage Merger, Life Storage stockholders and holders of units of the Life Storage operating partnership received 0.895 of a share of common stock (or OP Unit, as applicable) of the Company for each issued and outstanding share (or operating partnership unit) of Life Storage they owned for total consideration of $11,602,808, based on the Company's closing share price on July 19, 2023. At closing, the Company retired $1,160,000 in balances on Life Storage's line of credit which included $375,000 that Life Storage used to pay off its private placement notes in connection with the closing of the Life Storage Merger. The Company also paid off $32,000 in secured loans. On July 25, 2023, the Company completed obligor exchange offers and consent solicitations (together the "Exchange Offers") related to Life Storage's various senior notes. Upon the closing of the Exchange Offers, a total of $2,351,100 of Life Storage's senior notes were exchanged for senior notes of the same tenor of Extra Space Storage L.P. The remaining Life Storage senior note balances which were not exchanged total $48,900 and no longer have any financial reporting requirements or covenants.

Consideration and Purchase Price Allocation

The Merger was accounted for as an asset acquisition in accordance with ASC Topic 805 which requires that the cost of an acquisition be allocated on a relative fair value basis to the assets acquired and the liabilities assumed. The following table summarizes the fair value of total consideration transferred in the Life Storage Merger:
Consideration TypeJuly 20, 2023
Common stock$11,353,338 
OP units249,470 
Cash for payoff of Life Storage credit facility and debt1,192,000 
Transaction Costs55,318 
Total consideration$12,850,127 


The following table summarizes the estimated fair values assigned to the assets acquired and liabilities assumed:
July 20, 2023
Real estate assets$14,587,735 
Equity investment in joint venture partnerships325,250 
Cash and other assets107,423 
Intangible assets - other82,000 
Trade name50,000 
Unsecured senior notes(2,106,866)
Accounts payable, accrued expenses and other liabilities(191,077)
Noncontrolling interests(4,338)
Fair value of net assets acquired$12,850,127 

Fair Value Measurement

The estimated fair values of assets acquired and liabilities assumed were primarily based on information that was available as of the closing date of the Life Storage Merger. The methodology used to estimate the fair values to apply purchase accounting and the ongoing financial statement impact, if any, are summarized below:

Real estate assets – Real estate assets acquired were recorded at fair value using standard valuation methodologies, including the cost and market approaches. The remaining useful lives for real estate assets, excluding land, were reset to 39 years. Tenant relationships for storage leases were recorded at fair value based on estimated costs the Company
51


EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated

avoided to replace them. Tenant relationships are amortized to expense over 18 months, which is based on the Company’s historical experience with turnover in its stores.
Equity investment in joint venture partnerships - Equity investment in joint venture partnerships were recorded at fair value based on a direct capitalization of net operating income.
Intangible assets - other – Customer relationships relating to tenant reinsurance contracts were recorded at fair value based on the income approach which estimates the potential revenue loss the Company avoided to replace them. These assets are amortized to expense over 36 months, which is based on the Company’s historical experience with average length of stay for tenants.
Trade name – Trade names were recorded at fair value based on royalty payments avoided had the trade name been owned by a third party. This is determined using market royalty rates and a discounted cash flow analysis under the relief-from-royalty method. This method incorporates various assumptions, including projected revenue growth rates, the terminal growth rate, the royalty rate to be applied, and the discount rate utilized. The trade name is an indefinite lived asset and as such is not amortized.
Unsecured senior notes – Unsecured senior notes were recorded at fair value using readily available market data. The below-market value of debt is recorded as a debt discount and reported as a reduction of the unsecured senior notes balance on the condensed consolidated balance sheets. The discount is amortized using effective interest method as an increase to interest expense over the remaining terms of the unsecured senior notes.
Other assets and liabilities – the carrying values of cash, accounts receivable, prepaids and other assets, accounts payable, accrued expenses and other liabilities represented the fair values.

December 31, 2023Three Months Ended December 31, 2023For the Year Ended December 31, 2023
Intangible Assets:Gross Carrying AmountAccumulated AmortizationAmortization ExpenseAmortization Expense
Trade name$50,000 $— $— $— 
Intangible assets - other82,000 15,695 9,417 15,695 
132,000 15,695 9,417 15,695 
Estimated Aggregate Amortization Expense
Intangible Assets:202420252026
Trade name$— $— $— 
Intangible assets - other23,375 19,833 11,569 
$23,375 $19,833 $11,569 
Store Acquisition

The following table shows the Company’s acquisitions of stores for the years ended December 31, 20172023 and 2016.2022. The table excludes purchases of raw land orand improvements made to existing assets.
Consideration PaidTotal
PeriodNumber of StoresTotalCash PaidLoan AssumedFinance Lease LiabilityInvestments in Real Estate VenturesNet Liabilities/ (Assets) AssumedValue of Equity IssuedReal estate assets
Total 202314$147,729 $135,577 $12,000 $— $— $152 $— $147,729 
Total 2022153$1,366,348 $1,193,261 $— $6,823 $1,085 $(786)$165,965 $1,366,348 

52

   Consideration PaidTotal
QuarterNumber of Stores Total Cash Paid Loan AssumedNon- controlling InterestsInvestments in Real Estate VenturesNet Liabilities/ (Assets) AssumedValue of OP Units IssuedNumber of OP Units IssuedReal Estate Assets
Q4 201737
(1) 
$535,299
 $502,845
 $14,592
$(1,812)$12,957
$1,099
$5,618
64,708
$535,299
Q3 20174 31,966
 29,919
 


47
2,000
25,520
31,966
Q2 20173 34,641
 16,608
 9,463
1,827

(67)6,810
272,400
34,641
Q1 20172 25,556
 25,541
 


15


25,556
 46 $627,462
 $574,913
 $24,055
$15
$12,957
$1,094
$14,428
362,628
$627,462
              
Q4 201627
(2) 
$320,564
 $297,569
 $
$
$
$4,997
$17,998
563,819
$328,683
Q3 201627
(3) 
296,280
 296,345
 


(65)

307,268
Q2 201622 244,264
 176,689
 9,723


1,615
56,237
2,215,231
244,264
Q1 201623
(4) 
225,537
 225,156
 


381


269,721
 99 $1,086,645
 $995,759
 $9,723
$
$
$6,928
$74,235
2,779,050
$1,149,936
              


(1)Store acquisitions during the three months ended December 31, 2017 include the acquisition of seven stores that had been owned by joint ventures in which the Company held an equity interest. No gain or loss was recognized as a result of these acquisitions as the Company accounted for them as asset acquisitions subsequent to the adoption of ASU 2017-01, rather than as business combinations achieved in stages (step acquisitions).
(2)On November 17, 2016, the Company acquired 11 stores from its ESS WCOT LLC joint venture ("WCOT") in a step acquisition. The Company owns 5.0% of WCOT, with the other 95.0% owned by affiliates of Prudential Global Investment Management ("Prudential"). WCOT created a new subsidiary, Extra Space Properties 132 LLC ("ESP 132") and transferred 11 stores into ESP 132. WCOT then distributed ESP 132 to the Company and Prudential on a pro rata basis. This distribution was accounted for as a spinoff, and was therefore recorded at the net carrying amount of the properties of $68,814. Immediately after the distribution, the Company acquired Prudential's 95.0% interest in ESP 132 for $153,304, resulting in 100% ownership of ESP 132 and the related 11 stores. Based on the purchase price of Prudential's share of ESP 132, the Company determined that the fair value of its investment in ESP 132 immediately prior to the acquisition of Prudential's share was $8,119, and the Company recorded a gain of $4,651 as a result of remeasuring to fair value its existing equity interest in ESP 132. This gain is included in equity in earnings of unconsolidated real estate ventures - gain on sale of real estate assets and purchase of joint venture partners' interests on the Company's consolidated statements of operations. The fair value of the stores purchased was recorded at $161,072.
EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated



(3)On September 16, 2016, the Company acquired 23 stores from its ESS PRISA II LLC joint venture ("PRISA II") in a step acquisition. The Company owned 4.4% of PRISA II, with the other 95.6% owned by affiliates of Prudential. PRISA II created a new subsidiary, Extra Space Properties 131 LLC ("ESP 131"), and transferred 23 stores into ESP 131. PRISA II then distributed ESP 131 to the Company and Prudential on a pro rata basis. This distribution was accounted for as a spinoff, and was therefore recorded at the net carrying amount of the properties of $4,326. Immediately after the distribution, the Company acquired Prudential's 95.6% interest in ESP 131 for $238,679, resulting in 100% ownership of ESP 131 and the related 23 stores. Based on the purchase price of Prudential's share of ESP 131, the Company determined that the fair value of its investment in ESP 131 immediately prior to the acquisition of Prudential's share was $10,988, and the Company recorded a gain of $6,778 as a result of re-measuring to fair value its existing equity interest in ESP 131. This gain is included in equity in earnings of unconsolidated real estate ventures - gain on sale of real estate assets and purchase of joint venture partners' interests on the Company's consolidated statements of operations. The fair value of the stores purchased was recorded at $248,530. Subsequent to these transactions, PRISA II owned 42 stores. The Company sold its 4.4% interest in PRISA II to Prudential immediately following these transactions, as disclosed in Note 5.
(4)On February 2, 2016, the Company acquired six stores from its VRS Self Storage LLC joint venture (“VRS”) in a step acquisition. The Company owns 45.0% of VRS, with the other 55.0% owned by affiliates of Prudential. VRS created a new subsidiary, Extra Space Properties 122 LLC (“ESP 122”) and transferred six stores into ESP 122. VRS then distributed ESP 122 to the Company and Prudential on a pro rata basis. This distribution was accounted for as a spinoff, and was therefore recorded at the net carrying amount of the properties of $17,261. Immediately after the distribution, the Company acquired Prudential’s 55.0% interest in ESP 122 for $53,940, resulting in 100% ownership of ESP 122 and the related six stores. Based on the purchase price of Prudential’s share of ESP 122, the Company determined that the fair value of its investment in ESP 122 immediately prior to the acquisition of Prudential’s share was $44,184, and the Company recorded a gain of $26,923 as a result of re-measuring to fair value its existing equity interest in ESP 122. This gain is included in equity in earnings of unconsolidated real estate ventures - gain on sale of real estate assets and purchase of joint venture partners’ interests on the Company’s consolidated statements of operations. The fair value of the stores purchased was recorded at $98,082.
Store Disposals

On November 30, 2017, the Company sold 36 stores located in various states that had been classified as held for sale for an aggregate sales price of $295,000. The buyer of these properties was Storage Portfolio II JV, LLC ("SP II"), a newly formed joint venture in which the Company has a 10.0% equity interest. The Company recognized a gain of $118,776 related to this disposition, which represented 90.0% of the total gain. This amount is included in gain (loss) on real estate transactions, earnout from prior acquisitions and impairment of real estate on the Company's consolidated statements of operations. The Company deferred 10.0% of the gain due to the fact that it held an equity interest in the buyer, which resulted in a reduction in the carrying value of the Company's investment in SP II.

On September 13, 2017, the Company closed on the sale of a parcel of land located in New York that had been classified as held for sale for $19,000 in cash. This parcel of land had been written down to its fair value less selling costs during the six months ended June 30, 2017, and a loss of $3,500 was recorded. Therefore, no additional gain or loss was recorded related to this sale at the time of closing.

On July 26, 2016,15, 2022, the Company completed the saleacquisition of an operating store locatedmultiple entities doing business as Storage Express for a purchase price of $590.0 million. A portion of the consideration paid was in Indiana that had been classified as held for sale for $4,447the form of the issuance of 619,294 OP units (a total value of $125.0 million) and the remainder in cash. The Company recognized no gain or loss related to this disposition.portfolio included 106 operating stores and eight parcels of land for future development, all located in Illinois, Indiana, Kentucky and Ohio. This acquisition did not meet the definition of a business under ASU 2017-01, "Business Combinations (Topic 805): Clarifying the Definition of a Business" and was therefore recorded as an asset acquisition.

Other Investments

On April 20, 2016,June 1, 2022, the Company completed the saleacquisition of seven operating stores locatedBargold Storage Systems, LLC ("Bargold") for a purchase price of approximately $179.3 million. Bargold leases space in Ohioapartment buildings, primarily in New York City and Indiana thatits boroughs, builds out the space as storage units, and subleases the units to tenants. As of June 1, 2022, Bargold had been classified as held for sale for $17,555 in cash. approximately 17,000 storage units with an approximate occupancy of 97%. This acquisition is considered a business combination under ASU 2017-01, "Business Combinations (Topic 805): Clarifying the Definition of a Business."

The Company recognized a gainfollowing table summarizes the total consideration transferred to acquire Bargold:

Total cash paid by the company$157,302 
Fair value of Series D Units issued16,000 
Fair value of OP Units issued6,000 
Total consideration transferred$179,302 


As part of $11,265this acquisition, we recorded an expense of $1,465 related to this disposition,transaction costs.

The following table summarizes the preliminary estimated fair values of the assets acquired and liabilities assumed at the acquisition date:
Cash and cash equivalents$175 
Fixed assets6,411 
Developed technology500 
Trademarks500 
Customer relationships1,870 
Other assets125 
Accounts payables and accrued liabilities assumed(1,090)
Nets asset acquired8,491 
Goodwill170,811 
Total assets acquired$179,302 

The following table summarizes the revenues and earnings related to Bargold since the acquisition date of June 1, 2022, which isare included in gain (loss) on real estate transactions, earnout from prior acquisitions and impairment of real estate on the Company's consolidated statementsstatement of operations.operations for the year ended December 31, 2022:

On April 1, 2016, the Company disposed of a single store in Texas in exchange for 85,452 of the Company's OP Units valued at $7,689. The Operating Partnership canceled the OP Units received in this disposition. The Company recognized a gain of $93 related to this disposition, which is included in gain (loss) on real estate transactions, earnout from prior acquisitions and impairment of real estate on the Company's consolidated statements of operations.
Total revenues$9,374 
Net income from operations$1,718 


Pro Forma Information

53


EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated



Losses on Earnouts from Prior Acquisitions
On December 2014, the Company acquired a portfolio of five stores located in New Jersey and Virginia. As part of this acquisition, the Company agreed to make an additional cash payment to the sellers if the acquired stores exceeded a specified amount of net operating income for the years ending December 31, 2015 and 2016. At the acquisition date, the Company recorded an estimated liability related to this earnout provision. The operating income of these storesnoted above, during the earnout period was higher than expected, resulting in an increase in the estimate of the amount due to the sellers of $4,284, which was recorded as a loss and included in gain (loss) on real estate transactions, earnout from prior acquisitions and impairment of real estate on the Company's consolidated statements of operations for the year ended December 31, 2016.
During 2011,2022, the Company acquired a store located in Florida. As partBargold. The following pro forma financial information is based on the combined historical financial statements of this acquisition, the Company agreed to make an additional cash payment toand Bargold, however, only includes revenue and presents the sellersCompany's results as if the acquired store exceeded a specified amount of net rentalacquisition had occurred on January 1, 2021. Net income for any twelve-month period prior to June 30, 2015. At the acquisition date, $133 was recordedexcluded as the estimated amount that would be due, and the Company believed that it was unlikely that any significant additional payment would be made as a result of this earnout provision. Because the rental growth of the stores was trending significantly higher than expected, the Company estimated that an additional earnout payment of $2,500 wasimpracticable to report expenses due to the sellerlack of historical accrual basis accounting.

For the Year Ended December 31, 2022For the Year Ended December 31, 2021
Pro FormaPro Forma
Total revenues$1,930,816 $1,592,021 
Store Dispositions

The Company disposed of one store on May 18, 2022 and one on June 21, 2022, for a total cash consideration of approximately $38.7 million, resulting in a gain of approximately $14.2 million. Both had been classified as held for sale.

On December 16, 2021 the Company sold 16 stores that had been classified as held for sale for total cash consideration of December 31, 2014. This amount is included in gain (loss) on real estate transactions, earnout from prior acquisitions and sale of other assets on the Company’s consolidated statements of operations for the year ended December 31, 2014. During the year ended December 31, 2015, the$200,292. The Company recorded a gain of $400$73,854.

On March 1, 2021 the Company sold 16 stores that had been classified as held for sale to adjusta newly established unconsolidated joint venture. The Company received $132,759 and maintained a 55% interest in the existing liabilitynew joint venture valued at $33,878. The Company recognized a gain of $63,477 related to the actual amount owed to the sellers assale of June 30, 2015. This gain is included in gain (loss) on real estate transactions, earnout from prior acquisitions and impairment of real estate on the Company’s consolidated statements of operations for the year ended December 31, 2015.these properties.
5.6.     INVESTMENTS IN UNCONSOLIDATED REAL ESTATE VENTURESENTITIES
Investments in unconsolidated real estate entities and Cash distributions in unconsolidated real estate ventures consistrepresent the Company's interest in preferred stock of SmartStop and Strategic Storage, an affiliate of SmartStop, and the Company's noncontrolling interest in real estate joint ventures that own stores. The Company accounts for its investments in SmartStop and Strategic Storage preferred stock, which do not have a readily determinable fair value, at the transaction price less impairment, if any. The Company accounts for its investments in joint ventures using the equity method of accounting. The Company initially records these investments at cost and subsequently adjusts for cash contributions, distributions and net equity in income or loss, which is allocated in accordance with the provisions of the following:
 Number of PropertiesEquity
Ownership %
 Excess Profit
Participation %
 December 31,
 2017 2016
VRS Self Storage, LLC ("VRS")1645% 54% $19,467
 $20,433
Storage Portfolio I LLC ("SP I")2425% 40% 11,495
 11,782
Storage Portfolio II JV LLC ("SP II'")3610% 30% (3,140) 
PRISA Self Storage LLC ("PRISA")854% 4% 9,638
 10,152
Extra Space West Two LLC ("ESW II")55% 40% 3,939
 4,048
WCOT Self Storage LLC ("WCOT")165% 20% (357) 160
Extra Space West One LLC ("ESW")75% 40% (900) (546)
Extra Space Northern Properties Six LLC ("ESNPS")1010% 35% (1,279) (905)
Other minority owned stores1510-50% 19-50% 31,228
 34,446
 214    $70,091
 $79,570
applicable partnership or joint venture agreement.
In these joint ventures, the Company and the joint venture partner generally receive a preferred return on their invested capital. To the extent that cash/cash or profits in excess of these preferred returns are generated through operations or capital transactions, the Company would receive a higher percentage of the excess cash/cash or profits, as applicable, than its equity interest.
The Company separately reports investments with net equity less than zero in Cash distributions in unconsolidated real estate ventures in the consolidated balance sheets. The net equity of certain joint ventures is less than zero because distributions have exceeded the Company's investment in and share of income from these joint ventures. This is generally the result of financing distributions, capital events or operating distributions that are usually greater than net income, as net income includes non-cash charges for depreciation and amortization while distributions do not.
54


EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated

Net Investments in unconsolidated real estate entities and Cash distributions in unconsolidated real estate ventures consist of the following:
 Number of StoresEquity Ownership %
Excess Profit % (1)
December 31,
 20232022
PRISA Self Storage LLC854%4%$9,435 $8,596 
HF1 Sovran HHF Storage Holdings LLC3720%20%105,339 — 
Storage Portfolio II JV LLC3610%30%(8,314)(7,200)
Storage Portfolio IV JV LLC3210%30%48,184 49,139 
Storage Portfolio I LLC2434%49%(42,487)(41,372)
PR II EXR JV LLC2325%25%108,160 110,172 
HF2 Sovran HHF Storage Holdings II LLC2215%15%41,613 — 
HF5 Life Storage-HIERS Storage LLC1720%20%26,051 — 
HF6 191 V Life Storage Holdings LLC1720%20%12,702 — 
ESS-CA TIVS JV LP1655%55%-65%29,128 30,778 
VRS Self Storage, LLC1645%54%(16,386)(15,399)
HF10 Life Storage HHF Wasatch Holdings LLC1620%20%20,019 — 
Other unconsolidated real estate ventures13110%-50%10%-50%317,104 180,346 
SmartStop Self Storage REIT, Inc. Preferred Stock (2)
n/an/an/a200,000 200,000 
Strategic Storage Trust VI, Inc. Preferred Stock (3)
n/an/an/a150,000 — 
Net Investments in and Cash distributions in unconsolidated real estate entities472$1,000,548 $515,060 
(1)Includes pro-rata equity ownership share and promoted interest.
(2)In October 2019, the Company invested $200,000 in shares of convertible preferred stock of SmartStop with a dividend rate of 6.25% per annum, subject to increase after five years. The preferred shares are generally not redeemable for five years, except in the case of a change of control or initial listing of SmartStop. Dividend income from this investment is included on the equity in earnings and dividend income from unconsolidated real estate entities line on the Company's condensed consolidated statements of operations.
(3)In May 2023, the Company invested $150,000 in shares of convertible preferred stock of Strategic Storage with a dividend rate of 8.35% per annum, subject to increase after five years. The preferred shares are generally not redeemable for three years, except in the case of a change of control or initial listing of Strategic Storage. Dividend income from this investment is included on the equity in earnings and dividend income from unconsolidated real estate entities line on the Company's condensed consolidated statements of operations.
In June 2021, the Company sold its interest in two unconsolidated joint ventures to its joint venture partner. The Company received proceeds of $1,888 in cash, and recorded a gain of $525 which is included in Equity in earnings of unconsolidated real estate ventures - gain on sale of real estate assets and purchase of joint venture partner's interest in the Company's condensed consolidated statements of operations. The Company also purchased its joint venture partners' interests in two unconsolidated joint ventures.
Also in June 2021, the WICNN JV LLC and GFN JV, LLC joint ventures sold all 17 of the stores owned by the joint ventures to a third party. Subsequent to the sales, these joint ventures were dissolved. As a result of these transactions, the Company recorded a gain of $5,739, which is included in Equity in earnings of unconsolidated real estate ventures - gain on sale of real estate assets and purchase of joint venture partner's interest in the Company's consolidated statements of operations.
In accordance with ASC 810, the Company reviews all of its joint venture relationships annually to ensure that there are no entities that require consolidation. As of December 31, 2017,2023, there were no previously unconsolidated entities that were required to be consolidated as a result of this review.
55


EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated



The Company has entered into several17 new unconsolidated real estate ventures.joint ventures (including 16 from the Life Storage Merger), which added a total of 146 stores and a total investment of $305,921 to the Company's portfolio during the year ended December 31, 2023. Additionally, the Company's existing joint ventures added nine stores for a total investment of $27,583 during the year ended December 31, 2023. The Company accounts for its investment in the followingthese ventures under the equity method of accounting. Information about these real estate ventures is summarized as follows:
 Number of new unconsolidated joint venturesNumber of Stores Equity ownership % Total initial investment
Year ended December 31, 2017439 10.0% - 25.0% $13,341
Year ended December 31, 201688 20.0% - 50.0% $26,387
Year ended December 31, 201511 50% $2,885

On September 16, 2016, subsequent to its acquisition of 23 properties as outlined in Note 4, the Company sold its 4.42% interest in PRISA II to Prudential for $34,758 in cash. The carrying value of the Company's investment prior to the acquisition was $3,912, and the Company recorded a gain on the sale of $30,846. This gain is included in equityEquity in earnings ofand dividend income from unconsolidated real estate ventures - gain on saleentities consists of real estate assets and purchasethe following:
 For the Year Ended December 31,
 202320222021
Equity in earnings of PRISA Self Storage LLC$3,320 $3,272 $2,719 
Equity in earnings of HF1 Sovran HHF Storage Holdings LLC (1)
1,553 — — 
Equity in earnings of Storage Portfolio II JV LLC3,094 3,398 1,802 
Equity in earnings of Storage Portfolio IV JV LLC1,319 917 112 
Equity in earnings of Storage Portfolio I LLC5,182 4,684 2,833 
Equity in earnings of PR II EXR JV LLC2,227 1,229 (8)
Equity in earnings of HF2 Sovran HHF Storage Holdings II LLC (1)
691 — — 
Equity in earnings of HF5 Life Storage-HIERS Storage LLC (1)
377 — — 
Equity in earnings of HF6 191 V Life Storage Holdings LLC (1)
(735)— — 
Equity in earnings of ESS-CA TIVS JV LP3,873 2,753 1,274 
Equity in earnings of VRS Self Storage, LLC5,253 5,401 4,352 
Equity in earnings of HF10 Life Storage HHF Wasatch Holdings LLC (1)
40 — — 
Equity in earnings of other minority owned stores (1)
7,740 7,265 6,774 
Dividend income from SmartStop preferred stock12,500 12,509 12,500 
Dividend income from Strategic Storage preferred stock8,401 — — 
$54,835 $41,428 $32,358 
(1)The earnings of joint venture partners' interests on the Company's consolidated statements of operations.

On April 25, 2016, the Company and Prudential entered into the “Second Amendment to Amended and Restated Operating Agreement of ESS PRISA LLC” and the “First Amendment to Amended and Restated Operating Agreement of ESS PRISA II LLC” (the “Amendments”). The Amendments are deemed effective as of April 1, 2016. Under the Amendments, the Company gave up any future rights to receive distributions from these16 joint ventures atfrom the higher “excess profit participation” percentageLife Storage Merger are from the close of 17.0% in exchange for a higher equity ownership percentage. The Company’s equity ownership in ESS PRISA LLC increased from 2.0% to 4.0%, and the Company’s equity ownership in ESS PRISA II LLC increased from 2.0% to 4.4%. The Company continues to account for its investment in PRISA under the equity method of accounting. The Company subsequently sold its interest in PRISA II as noted above.acquisition on July 20, 2023.
Equity in earnings of unconsolidated real estatecertain of our joint ventures consists of the following:
 For the Year Ended December 31,
 2017 2016 2015
Equity in earnings of VRS$3,562
 $2,919
 $4,041
Equity in earnings of SP I2,684
 2,380
 1,951
Equity in earnings of SP II33
 
 
Equity in earnings of PRISA2,430
 1,912
 1,013
Equity in earnings of ESW II1,210
 174
 145
Equity in earnings of WCOT1,033
 614
 569
Equity in earnings of ESW2,502
 2,269
 1,875
Equity in earnings of ESNPS918
 823
 633
Equity in earnings of other minority owned stores959
 1,804
 2,124
 $15,331
 $12,895
 $12,351
Equity in earnings of ESW II, SP I and VRS and other minority owned stores includes the amortization of the Company’s excess purchase price of $27,691$60,253 of these equity investments over its original basis. The excess basis is amortized over 4039 years.
The Company provides management services to joint ventures for a fee. Management fee revenues for affiliated real estate joint ventures for the years ended December 31, 2023, 2022 and 2021 were $31,755, $24,389 and $17,619, respectively.
7.    INVESTMENTS IN DEBT SECURITIES AND NOTES RECEIVABLE
Investments in debt securities and notes receivable consists of the Company's investment in mandatorily redeemable preferred stock of Jernigan Capital, Inc. ("JCAP") in connection with JCAP's acquisition by affiliates of NexPoint Advisors, L.P. ("NexPoint") and receivables due to the Company under its bridge loan program. Information about these balances is as follows:
December 31, 2023December 31, 2022
Debt securities - Preferred Stock$300,000 $300,000 
Notes Receivable - Bridge Loans594,727 491,879 
Dividends and Interest Receivable10,042 66,170 
$904,769 $858,049 
In November 2020, the Company invested $300,000 in the preferred stock of JCAP in connection with the acquisition of JCAP by affiliates of NexPoint. This investment consisted of 200,000 Series A Preferred Shares valued at a total of $200,000, and 100,000 Series B Preferred Shares valued at a total of $100,000. In December 2022, the Company completed a modification with Nexpoint Storage Partners (as successor in interest to JCAP) that exchanged the Series A and B Preferred Shares for 300,000 Series D Preferred Shares, valued at a total of $300,000. The JCAP Series D preferred stock is mandatorily
56


EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated



redeemable after six years from the modification in December 2022, with two one-year extension options. NexPoint may redeem the Preferred Shares at any time, subject to certain prepayment penalties. The Company accounts for the JCAP preferred stock as a held to maturity debt security at amortized cost and evaluates whether the fair value is below the amortized cost basis at each reporting period. The Series D Preferred Shares have initial dividend rates of 8.5%. If the investment is not retired after six years, the preferred dividends increase annually.
6.     NOTES PAYABLE AND REVOLVING LINES OF CREDITIn July 2020, the Company purchased a senior mezzanine note receivable with a principal amount of $103,000. The note receivable bore interest at 5.5%, with a maturity in December 2023 and was collateralized through an equity interest in which it or its subsidiaries wholly own 62 storage facilities. The Company paid cash of $101,142 for the note receivable and accounted for the discount at amortized cost. The discount was being amortized over the term of the note receivable. In February 2022, a junior mezzanine lender exercised its right to buy the Company’s position for the full principal balance plus interest due, as a result of which the Company sold this note for a total of $103,315 in cash. The remaining unamortized discount was recognized in that quarter as interest income.
The Company provides bridge loan financing to third-party self-storage operators. These notes receivable consist of mortgage loans receivable, which are collateralized by self-storage properties, and unsecured mezzanine loans receivable. As of December 31, 2023, 70% of the notes held are mortgage receivables. The Company intends to sell a portion of the mortgage receivables. These notes receivable typically have a term of three years with two one-year extensions, and have variable interest rates. During the year ended December 31, 2023, the Company sold a total principal amount of $167,495 of its mortgage bridge loans receivable to third parties for a total of $167,495 in cash, closed on $283,039 in initial loan draws, and recorded $27,366 of draws from interest holdbacks.
The bridge loans typically have a loan to value ratio between 70% and 80%. None of the debt securities or notes receivable are in past-due or nonaccrual status and the allowance for potential credit losses is immaterial.
8.     DEBT
The components of notes payableterm debt are summarized as follows:
Term DebtDecember 31, 2023December 31, 2022Fixed Rate
Variable Rate (2)
Maturity Dates
Secured fixed-rate (1)
$401,319 $521,820 2.67% - 4.62%April 2025 - February 2030
Secured variable-rate (1)
877,786 772,604 6.35% - 6.88%November 2024 - September 2030
Unsecured fixed-rate7,921,633 4,240,376 2.08% - 5.90%January 2025 - March 2032
Unsecured variable-rate1,463,367 884,624 6.30% - 6.63%June 2024 - July 2029
Total10,664,105 6,419,424 
Less: Discount on unsecured senior notes (3)
(274,350)— 
Less: Unamortized debt issuance costs(55,007)(32,962)
Total$10,334,748 $6,386,462 
(1) The loans are collateralized by mortgages on real estate assets and the assignment of rents.
(2) Basis rates include Term SOFR and Daily Simple SOFR
(3) Unsecured senior notes from the Life Storage Merger were recorded at fair value, resulting in a discount to be amortized over the term of the debt.

The following table summarizes the scheduled maturities of term debt, excluding available extensions, at December 31, 2023:
57


EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated

Notes PayableDecember 31, 2017 December 31, 2016 Fixed Rate Variable Rate 
Basis Rate (2)
 Maturity Dates
Secured fixed rate notes payable (1)
$2,095,495
 $2,297,968
 2.6% - 6.1%     September 2018 - February 2030
Secured variable rate notes payable (1)
717,979
 642,970
   3.0% - 3.4% LIBOR plus 1.4% - 1.8% September 2018 - December 2024
Unsecured fixed rate notes payable600,000
 
 3.1% - 4.0%     October 2021 - August 2027
Unsecured variable rate notes payable350,000
 300,000
   2.8% - 3.2% LIBOR plus 1.3% - 1.7% October 2021 - October 2023
Total3,763,474
 3,240,938
        
Less: unamortized debt issuance costs(24,977) (27,350)        
Total$3,738,497
 $3,213,588
        
            
(1) The loans are collateralized by mortgages on real estate assets and the assignment of rents.
(2) 30-day USD LIBOR
           
2024648,250 
20251,123,120 
20261,409,581 
20271,316,907 
20281,029,000 
20291,542,759 
20301,344,488 
20311,650,000 
2032600,000 
Total$10,664,105 

On October 14, 2016,June 22, 2023, the Company entered into a credit agreementthe Third Amended and Restated Credit Agreement (the “Credit Agreement”"Credit Agreement") which provides for aggregate borrowingsincreased the commitment of up to $1.15 billion, consisting of a senior unsecured four-yearthe revolving credit facility of $500 million (the “Revolvingto $1,940,000, and later to $2,000,000 with an Increasing Lender Supplement entered into in August 2023, and extended its maturity to June 2027. In connection with entering into the Credit Facility”), a senior unsecured five-yearAgreement, the Company paid off Tranche 5 and added the Tranche 8 term loan, of $430 million (the “Five-Year Term Loan Facility”) and a senior unsecured seven-year term loan of $220 million (the “Seven-Year Term Loan Facility” and, togethermaturing June 2024, which allowed the Company to draw up to $1,000,000 in connection with the RevolvingLife Storage Merger. Tranche 8 was fully drawn on July 20, 2023, in connection with the closing of the Life Storage Merger, paid down to $400,000 in December 2023, and fully paid off in January 2024.

Pursuant to the terms of the Credit Facility andAgreement, the Five-Year Term Loan Facility, the “Credit Facility”). The Company may request an increase in the amountextension of the commitments under the Credit Facility up to an aggregate of $1.5 billion, and extend the term of the Revolving Credit Facilityrevolving credit facility for up to two additional periods of six months each, after satisfying certain conditions.
Amounts
As of December 31, 2023, amounts outstanding under the Credit Facility bearrevolving credit facility bore interest at floating rates, at the Company’s option, equal to either (i) LIBORAdjusted Term or Daily Simple SOFR plus the applicable Eurodollar rate margin or (ii) the applicable base rate which is the applicable margin plus the highest of (a) 0.0%, (b) the federal funds rate plus 0.50%, (c) U.S. Bank’s prime rate or (d) the EurodollarSOFR rate plus 1.00%. ThePer the Credit Agreement, the applicable EurodollarSOFR rate margin will rangeand applicable base rate margin are based on the Company’s achieved debt rating, with the SOFR rate margin ranging from 1.35%0.7% to 2.50%2.2% per annum and the applicable base rate margin will range from 0.35% to 1.50% per annum, in each case depending on the Company’s Consolidated Leverage Ratio, as defined in the Credit Agreement, and the type of loan. If the Operating Partnership obtains a specified investment grade rating from two or more specified credit rating agencies, and elects to use the alternative rates based on the Company’s debt rating, the applicable Eurodollar rate margin will range from 0.85% to 2.45% per annum and the applicable base rate margin will rangeranging from 0.00% to 1.45%1.20% per annum, in each case depending on the rating achieved and the type of loan.annum.

The Credit Agreement is guaranteed by the Company and is not secured by any assets of the Company. We areThe Company's unsecured debt is subject to certain restrictive covenants relating to our outstanding debt.financial covenants. As of December 31, 2017,2023, the Company was in compliance with all of its financial covenants.
The following table summarizes the scheduled maturities of notes payable at December 31, 2017:
  
2018$210,085
2019456,117
2020930,308
2021658,146
2022493,493
Thereafter1,015,325
 $3,763,474
EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated


Real estate assets are pledged as collateral for the secured loans. Of the Company’s $3,763,474 principal amount of notes payable outstanding at December 31, 2017, $2,545,278 was recourse due to guarantees or other security provisions.
All of the Company’s lines of credit are guaranteed by the Company. The following table presents information on the Company’s lines of credit, the proceeds of which are used to repay debt and for general corporate purposes, for the periods indicated:
As of December 31, 2023
Revolving Lines of CreditAmount DrawnCapacityInterest RateMaturity
Basis Rate (1)
Credit Line 1 (2)
$40,000 $140,000 6.7%7/1/2026SOFR plus 1.35%
Credit Line 2 (3)(4)
642,000 2,000,000 6.3%6/22/2027ASOFR plus 0.775%
$682,000 $2,140,000 
(1) Daily Simple SOFR
(2) Secured by mortgages on certain real estate assets. On January 13, 2023 the maturity date was extended to July 1, 2026 with one extension of one year available.
(3) Unsecured. On June 22, 2023, the maturity date was extended to June 22, 2027 with two six-month extensions available. On August 11, 2023, the capacity was increased by $60 million.
(4) Basis Rate as of December 31, 2023. Rate is subject to change based on the Company's investment grade rating.
As of December 31, 2023, the Company’s percentage of fixed-rate debt to total debt was 73.4%. The weighted average interest rates of the Company’s fixed and variable-rate debt were 3.9% and 6.6%, respectively. The combined weighted average interest rate was 4.6%.
58
 As of December 31, 2017      
Revolving Lines of CreditAmount Drawn Capacity Interest Rate Origination Date Maturity 
Basis Rate (1)
Credit Line 1 (2)
$19,000
 $100,000
 3.2% 6/4/2010 6/30/2018 LIBOR plus 1.7%
Credit Line 2 (3)(4)
75,000
 500,000
 3.0% 10/14/2016 10/14/2020 LIBOR plus 1.4%
 $94,000
 $600,000
        
(1) 30-day USD LIBOR
(2) Secured by mortgages on certain real estate assets. One two-year extension available.
(3) Unsecured. Two six-month extensions available.
(4) Basis Rate as of December 31, 2017. Rate is subject to change based on our consolidated leverage ratio.


EXTRA SPACE STORAGE INC.
7.NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated

9.     DERIVATIVES
The Company is exposed to certain risk arising from both its business operations and economic conditions. The Company principally manages its exposures to a wide variety of business and operational risks through management of its core business activities. The Company manages economic risks, including interest rate, liquidity, and credit risk primarily by managing the amount, sources and duration of its debt funding and the use of derivative financial instruments. Specifically, the Company enters into derivative financial instruments to manage exposures that arise from business activities that result in the receipt or payment of future known and uncertain cash amounts, the value of which are determined by interest rates. The Company’s derivative financial instruments are used to manage differences in the amount, timing and duration of the Company’s known or expected cash receipts and its known or expected cash payments principally related to the Company’s investments and borrowings.
Cash Flow Hedges of Interest Rate Risk
The Company’s objectives in using interest rate derivatives are to add stability to interest expense and to manage its exposure to interest rate movements. To accomplish this objective, the Company primarily uses interest rate swaps as part of its interest rate risk management strategy. Interest rate swaps designated as cash flow hedges involve the receipt of variable amounts from a counterparty in exchange for the Company making fixed-rate payments over the life of the agreements without exchange of the underlying notional amount.
The effective portion of changes in the fair value of derivatives designated and that qualify as cash flow hedges is recorded in accumulated other comprehensive income (“OCI”) and is subsequently reclassified into earnings in the period that the hedged forecasted transaction affects earnings. A portion of these changes is excluded from accumulated other comprehensive income as it is allocated to noncontrolling interests. During the years ended December 31, 2017, 20162023, 2022 and 2015,2021, such derivatives were used to hedge the variable cash flows associated with existing variable-rate debt. During 2018,2024, the Company estimates that $4,736$19,010 will be reclassified as a decrease to interest expense.
The following table summarizes the terms of the Company’s 2915 active and four forward-starting derivative financial instruments, which have a total combined current notional amount of $2,154,799$1,448,566 as of December 31, 2017:2023:
Hedge ProductRange of Notional AmountsStrikeStrikeEffective DatesMaturity Dates
Swap Agreements$32,000 - $245,000$4,8730.96% - $267,4314.33%1.13% - 3.84%10/3/2011 - 4/28/20179/20/6/27/2018 - 7/14/20251/29/2024 - 2/1/20242028

EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated



Fair Values of Derivative Instruments
The table below presents the fair value of the Company’s derivative financial instruments as well as their classification on the consolidated balance sheets:
 Asset / Liability Derivatives
 December 31, 2017 December 31, 2016
Derivatives designated as hedging instruments:Fair Value
Other assets$38,365
 $23,844
Other liabilities$9
 $2,447
Asset / Liability Derivatives
Derivatives designated as hedging instruments:December 31, 2023December 31, 2022
Other assets$26,183 $54,839 
Other liabilities$5,030 $73 
Effect of Derivative Instruments
The tables below present the effect of the Company’s derivative financial instruments on the consolidated statements of operations for the periods presented. No tax effect has been presented as the derivative instruments are held by the Company:

 Gain (loss) recognized in OCI for the Year Ended December 31,Location of amounts reclassified from OCI into incomeGain (loss) reclassified from OCI for the Year Ended December 31,
Type20232022202320222021
Swap Agreements$8,730 $88,372 Interest expense$41,541 $(7,877)$(35,764)
59

  Gain (loss) recognized in OCI For the Year Ended December 31, Location of amounts reclassified from OCI into income Gain (loss) reclassified from OCI For the Year Ended December 31,
Type 2017 2016 2017 2016 2015
Swap Agreements $8,499
 $6,388
 Interest expense $(8,853) $(18,800) $(12,487)

EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated

Credit-Risk-Related Contingent Features
The Company has agreements with some of its derivative counterparties that contain provisions pursuant to which, the Company could be declared in default of its derivative obligations if the Company defaults on any of its indebtedness, including default where repayment of the indebtedness has not been accelerated by the lender.
The Company also has an agreement with some of its derivative counterparties that incorporates the loan covenant provisions of the Company’s indebtedness with a lender affiliate of the derivative counterparty. Failure to comply with the loan covenant provisions would result in the Company being in default on any derivative instrument obligations covered by the agreement.
As of December 31, 2017,2023, the fair value of derivatives in a net liability position, which includes accrued interest but excludes any adjustment for nonperformance risk, related to these agreements was immaterial.$5,082. As of December 31, 2017,2023, the Company had not posted any collateral related to these agreements. If the Company had breached any of these provisions as of December 31, 2017,2023, it could have been required to cash settle its obligations under these agreements at their termination value.
8.     NOTES PAYABLE TO TRUSTS
During July 2005, ESS Statutory Trust III (the “Trust III”), a newly formed Delaware statutory trust and a wholly-owned, unconsolidated subsidiary of the Operating Partnership, issued an aggregate of $40,000 of preferred securities which mature on July 31, 2035. In addition, the Trust III issued 1,238 of Trust common securities to the Operating Partnership for a purchase price of $1,238. On July 27, 2005, the proceeds from the sale of the preferred and common securities of $41,238 were loaned in the form of a note to the Operating Partnership (“Note 3”). Note 3 had a fixed rate of 6.91% through July 31, 2010, and then was payable at a variable rate equal to the three month LIBOR plus 2.4% per annum. Effective July 11, 2011, the Trust III entered into an interest rate swap that fixes the interest rate to be paid at 5.0% per annum and matures July 11, 2018. The interest on Note 3, payable quarterly, will be used by the Trust III to pay dividends on the trust preferred securities. The trust preferred securities became redeemable by the Trust III with no prepayment premium on July 27, 2010.
During May 2005, ESS Statutory Trust II (the “Trust II”), a newly formed Delaware statutory trust and a wholly-owned, unconsolidated subsidiary of the Operating Partnership of the Company, issued an aggregate of $41,000 of preferred securities which mature on June 30, 2035. In addition, the Trust II issued 1,269 of Trust common securities to the Operating Partnership for a purchase price of $1,269. On May 24, 2005, the proceeds from the sale of the preferred and common securities of $42,269 were loaned in the form of a note to the Operating Partnership (“Note 2”). Note 2 had a fixed rate of 6.7% through June 30,
EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated


2010, and then was payable at a variable rate equal to the three month LIBOR plus 2.4% per annum. Effective July 11, 2011, the Trust II entered into an interest rate swap that fixes the interest rate to be paid at 5.0% per annum and matures July 11, 2018. The interest on Note 2, payable quarterly, will be used by the Trust II to pay dividends on the trust preferred securities. The trust preferred securities became redeemable by the Trust II with no prepayment premium on June 30, 2010.
During April 2005, ESS Statutory Trust I (the “Trust”), a newly formed Delaware statutory trust and a wholly-owned, unconsolidated subsidiary of the Operating Partnership of the Company issued an aggregate of $35,000 of trust preferred securities which mature on June 30, 2035. In addition, the Trust issued 1,083 of Trust common securities to the Operating Partnership for a purchase price of $1,083. On April 8, 2005, the proceeds from the sale of the trust preferred and common securities of $36,083 were loaned in the form of a note to the Operating Partnership (the “Note”). The Note has a variable rate equal to the three month LIBOR plus 2.3% per annum. Effective June 30, 2010, the Trust entered into an interest rate swap that fixes the interest rate to be paid at 5.1% per annum and matures on June 30, 2018. The interest on the Note, payable quarterly, will be used by the Trust to pay dividends on the trust preferred securities. The trust preferred securities are redeemable by the Trust with no prepayment premium.
Trust, Trust II and Trust III (together, the “Trusts”) are VIEs because the holders of the equity investment at risk (the trust preferred securities) do not have the power to direct the activities of the entities that most significantly affect the entities’ economic performance because of their lack of voting or similar rights. Because the Operating Partnership’s investment in the Trusts’ common securities was financed directly by the Trusts as a result of its loan of the proceeds to the Operating Partnership, that investment is not considered to be an equity investment at risk. The Operating Partnership’s investment in the Trusts is not a variable interest because equity interests are variable interests only to the extent that the investment is considered to be at risk, and therefore the Operating Partnership cannot be the primary beneficiary of the Trusts. Since the Company is not the primary beneficiary of the Trusts, they have not been consolidated. A debt obligation has been recorded in the form of notes as discussed above for the proceeds, which are owed to the Trusts by the Company. The Company has also recorded its investment in the Trusts’ common securities as other assets.
The Company has not provided financing or other support during the periods presented to the Trusts that it was not previously contractually obligated to provide. The Company’s maximum exposure to loss as a result of its involvement with the Trusts is equal to the total amount of the notes discussed above less the amounts of the Company’s investments in the Trusts’ common securities. The net amount is the notes payable that the Trusts owe to third parties for their investments in the Trusts’ preferred securities.
The notes payable to trusts are presented net of unamortized deferred financing costs of $2,146 and $2,269 as of December 31, 2017 and 2016, respectively.

Following is a tabular comparison of the liabilities the Company has recorded as a result of its involvements with the Trusts to the maximum exposure to loss the Company is subject to related to the Trusts as of December 31, 2017:
 Notes payable to Trusts Investment Balance Maximum exposure to loss Difference
Trust$36,083
 $1,083
 $35,000
 $
Trust II42,269
 1,269
 41,000
 
Trust III41,238
 1,238
 40,000
 
Total119,590
 3,590
 116,000
 
Unamortized debt issuance costs(2,146) 
 
 
Total notes payable to trusts, net$117,444
 

 

 

EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated


9.     EXCHANGEABLE SENIOR NOTES
In September 2015, the Operating Partnership issued $575,000 of its 3.125% Exchangeable Senior Notes due 2035. Costs incurred to issue the 2015 Notes were approximately $11,992, consisting primarily of a 2.0% underwriting fee. These costs are being amortized as an adjustment to interest expense over five years, which represents the estimated term based on the first available redemption date, and are included in other assets in the consolidated balance sheets. The 2015 Notes are general unsecured senior obligations of the Operating Partnership and are fully guaranteed by the Company. Interest is payable on April 1 and October 1 of each year beginning April 1, 2016, until the maturity date of October 1, 2035. The Notes bear interest at 3.125% per annum and contain an exchange settlement feature, which provides that the 2015 Notes may, under certain circumstances, be exchangeable for cash (for the principal amount of the 2015 Notes) and, with respect to any excess exchange value, for cash, shares of the Company’s common stock, or a combination of cash and shares of the Company’s common stock, at the Company’s option. The exchange rate of the 2015 Notes as of December 31, 2017 was approximately 10.66 shares of the Company’s common stock per $1,000 principal amount of the 2015 Notes.
The Operating Partnership may redeem the 2015 Notes at any time to preserve the Company’s status as a REIT. In addition, on or after October 5, 2020, the Operating Partnership may redeem the 2015 Notes for cash, in whole or in part, at 100% of the principal amount plus accrued and unpaid interest, upon at least 30 days but not more than 60 days prior written notice to the holders of the 2015 Notes. The holders of the 2015 Notes have the right to require the Operating Partnership to repurchase the 2015 Notes for cash, in whole or in part, on October 1 of the years 2020, 2025 and 2030, (unless the Operating Partnership has called the 2015 Notes for redemption), and upon the occurrence of certain designated events, in each case for a repurchase price equal to 100% of the principal amount of the 2015 Notes plus accrued and unpaid interest. Certain events are considered “Events of Default,” as defined in the indenture governing the 2015 Notes, which may result in the accelerated maturity of the 2015 Notes.
On June 21, 2013, the Operating Partnership issued $250,000 of its 2.375% Exchangeable Senior Notes due 2033 at a 1.5% discount, or $3,750. Costs incurred to issue the 2013 Notes were approximately $1,672. These costs are being amortized as an adjustment to interest expense over five years, which represents the estimated term based on the first available redemption date, and are included in other assets in the consolidated balance sheets. The 2013 Notes are general unsecured senior obligations of the Operating Partnership and are fully guaranteed by the Company. Interest is payable on January 1 and July 1 of each year beginning January 1, 2014, until the maturity date of July 1, 2033. The 2013 Notes bear interest at 2.375% per annum and contain an exchange settlement feature, which provides that the 2013 Notes may, under certain circumstances, be exchangeable for cash (for the principal amount of the 2013 Notes) and, with respect to any excess exchange value, for cash, shares of the Company’s common stock, or a combination of cash and shares of the Company’s common stock, at the Company’s option. The exchange rate of the 2013 Notes as of December 31, 2017 was approximately 18.85 shares of the Company’s common stock per $1,000 principal amount of the 2013 Notes.

Additionally, the 2013 Notes and the 2015 Notes can be exchanged during any calendar quarter, if the last reported sale price of the common stock of the Company is greater than or equal to 130% of the exchange price for at least 20 trading days during a period of 30 consecutive trading days ending on the last trading day of the immediately preceding calendar quarter. The price of the Company’s common stock exceeded 130% of the exchange price for the required time period for the 2013 Notes during the quarter ended December 31, 2017. Therefore, holders of the 2013 Notes may elect to exchange such notes during the quarter ending March 31, 2018. The price of the Company’s common stock did not exceed 130% of the exchange price for the required time period for the 2015 Notes during the quarter ended December 31, 2017.
The Operating Partnership may redeem the 2013 Notes at any time to preserve the Company’s status as a REIT. In addition, on or after July 5, 2018, the Operating Partnership may redeem the 2013 Notes for cash, in whole or in part, at 100% of the principal amount plus accrued and unpaid interest, upon at least 30 days but not more than 60 days prior written notice to the holders of the 2013 Notes. The holders of the 2013 Notes have the right to require the Operating Partnership to repurchase the 2013 Notes for cash, in whole or in part, on July 1 of the years 2018, 2023 and 2028, and upon the occurrence of certain designated events, in each case for a repurchase price equal to 100% of the principal amount of the 2013 Notes plus accrued and unpaid interest. Certain events are considered “Events of Default,” as defined in the indenture governing the 2013 Notes, which may result in the accelerated maturity of the 2013 Notes.
GAAP requires entities with convertible debt instruments that may be settled entirely or partially in cash upon conversion to separately account for the liability and equity components of the instrument in a manner that reflects the issuer’s economic interest cost. The Company therefore accounts for the liability and equity components of the 2013 Notes and 2015 Notes separately. The equity components are included in paid-in capital in stockholders’ equity in the consolidated balance sheets, and
EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated


the value of the equity components are treated as original issue discount for purposes of accounting for the debt components. The discounts are being amortized as interest expense over the remaining period of the debt through its first redemption date, July 1, 2018 for the 2013 Notes and October 1, 2020 for the 2015 Notes. The effective interest rate on the liability components of both the 2013 Notes and the 2015 Notes is 4.0%, which approximates the market rate of interest of similar debt without exchange features (i.e. nonconvertible debt) at the time of issuance.$5,082.
Information about the carrying amount of the equity component, the principal amount of the liability component, its unamortized discount and its net carrying amount were as follows for the periods indicated:
 December 31, 2017 December 31, 2016
Carrying amount of equity component - 2013 Notes$
 $
Carrying amount of equity component - 2015 Notes22,597
 22,597
Carrying amount of equity components$22,597
 $22,597
Principal amount of liability component - 2013 Notes$49,259
 $63,170
Principal amount of liability component - 2015 Notes575,000
 575,000
Unamortized discount - equity component - 2013 Notes(315) (1,187)
Unamortized discount - equity component - 2015 Notes(12,974) (17,355)
Unamortized cash discount - 2013 Notes(74) (281)
Unamortized debt issuance costs(6,620) (9,033)
Net carrying amount of liability components$604,276
 $610,314

The amount of interest cost recognized relating to the contractual interest rate and the amortization of the discount on the liability component for the 2013 Notes and 2015 Notes was as follows for the periods indicated:
 For the Year Ended December 31,
 2017 2016 2015
Contractual interest$19,303
 $19,483
 $9,939
Amortization of discount5,103
 4,980
 3,310
Total interest expense recognized$24,406
 $24,463
 $13,249
Repurchase of 2013 Notes

During July, August and October 2017, the Company repurchased a total principal amount of $13,911 of the 2013 Notes. The Company paid cash of $20,042 for the total of the principal amount and the exchange value in excess of the principal amount.
During April 2016, the Company repurchased a total principal amount of $2,555 of the 2013 Notes. The Company paid cash for the principal amount and issued a total of 18,031 shares of common stock valued at $1,686 for the exchange value in excess of the principal amount.
During February 2016, the Company repurchased a total principal amount of $19,639 of the 2013 Notes. The Company paid cash for the principal amount, and issued a total of 130,909 shares of common stock valued at $11,380 for the exchange value in excess of the principal amount.
As part of the 2015 Notes offering, the Company repurchased $164,636 of the 2013 Notes for $227,212 on September 15, 2015. The Company allocated the value of the consideration paid to repurchase the 2013 Notes (1) to the extinguishment of the liability component and (2) to the reacquisition of the equity component. The amount allocated to the extinguishment of the liability component is equal to the fair value of that component immediately prior to extinguishment. The difference between the consideration attributed to the extinguishment of the liability component and the sum of (a) the net carrying amount of the repurchased liability component, and (b) the related unamortized debt issuance costs, is recognized as a gain on debt extinguishment. The remaining settlement consideration is allocated to the reacquisition of the equity component of the repurchased 2013 Notes and recognized as a reduction of stockholders’ equity.
EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated


Information about the repurchases is as follows:
 For the Year Ended December 31,
 2017 2016 2015
Principal amount repurchased$13,911
 $22,194
 $164,636
      
Amount allocated to:     
  Extinguishment of liability component$13,692
 $21,363
 $157,100
  Reacquisition of equity component6,350
 13,898
 70,112
Total consideration paid for repurchase$20,042
 $35,261
 $227,212
Exchangeable senior notes repurchased$13,911
 $22,194
 $164,636
Extinguishment of liability component(13,692) (21,363) (157,100)
Discount on exchangeable senior notes(184) (788) (6,931)
Related debt issuance costs(35) (43) (605)
Gain/(loss) on repurchase$
 $
 $

Subsequent to year end, the Company has repurchased a total principal amount of $37,704 of the 2013 Notes. The Company paid cash for these repurchases totaling $58,465, which included the principal amount and the exchange value in excess of the principal amount.
10.     RELATED PARTY AND AFFILIATED REAL ESTATE JOINT VENTURE TRANSACTIONS
The Company provides management services to certain joint ventures and third parties for a fee. Management fee revenues for related party and affiliated real estate joint ventures and other income are summarized as follows:
    For the Year Ended December 31,
Entity Type 2017 2016 2015
PRISA Affiliated real estate joint ventures $6,303
 $6,117
 $5,809
SP I Affiliated real estate joint ventures 1,450
 1,397
 1,312
WCOT Affiliated real estate joint ventures 1,159
 1,819
 1,799
VRS Affiliated real estate joint ventures 1,038
 1,053
 1,398
ESNPS Affiliated real estate joint ventures 645
 620
 584
ESW Affiliated real estate joint ventures 590
 555
 515
ESW II Affiliated real estate joint ventures 502
 482
 452
PRISA II Affiliated real estate joint ventures 
 3,469
 4,703
Other Franchisees, third parties and other 27,692
 24,330
 17,589
    $39,379
 $39,842
 $34,161

Receivables from related parties and affiliated real estate joint ventures balances are summarized as follows:
  December 31, 2017 December 31, 2016
Mortgage notes receivable $
 $15,860
Other receivables from stores 2,847
 751
  $2,847
 $16,611
Mortgage notes receivable consisted of short-term mortgage notes to joint ventures and one three-year revolving line of credit to a joint venture. These short-term mortgage notes had a maturity of less than a year and were repaid prior to December 31, 2017. Other receivables from stores consist of amounts due for management fees, asset management fees and expenses paid on behalf of the stores that the Company manages. The Company believes that all of these related party and affiliated real
EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated


estate joint venture receivables are fully collectible. The Company did not have any payables to related parties at December 31, 2017 or 2016.
The Company has entered into an annual aircraft dry lease and service and management agreement with SpenAero, L.C. (“SpenAero”), an affiliate of Spencer F. Kirk, who was the Company's Chief Executive Officer through December 31, 2016 and continues to serve as a member of the Company's Board of Directors. Under the terms of the agreement, the Company pays a defined hourly rate for use of the aircraft. During the years ended December 31, 2017, 2016 and 2015, the Company paid SpenAero $167, $1,180 and $1,163, respectively.
11.     STOCKHOLDERS’ EQUITY
The Company’s charter provides that it can issue up to 500,000,000 shares of common stock, $0.01 par value per share and 50,000,000 shares of preferred stock, $0.01 par value per share. As of December 31, 2017, 126,007,0912023, 211,278,803 shares of common stock were issued and outstanding, and no shares of preferred stock were issued or outstanding.


All holders of the Company's common stock are entitled to receive dividends and to one vote on all matters submitted to a vote of stockholders. The transfer agent and registrar for the Company’s common stock is American Stock Transfer & Trust Company.


During the year ended December 31, 2023, the Company sold no shares of common stock.

On July 20, 2023, the Company issued 76,217,359 shares of its common stock for a total value of $11,353,338. This was based on an exchange ratio of 0.895 per share conversion of Life Storage common stock at the Company's closing share price on July 19, 2023 of $148.96 as part of the Life Storage Merger.

On January 7, 2022, the Company issued 186,766 shares of its common stock to acquire two stores for $40,965.

On August 28, 2015, the Company filed a $400,000 “at the market” equity program with the Securities and Exchange Commission, and entered into separate equity distribution agreements with five sales agents. On May 6, 2016,9, 2021, the Company filed its current $400,000$800,000 "at the market" equity program with the Securities and Exchange Commission using a new shelf registration statement on Form S-3, and entered into separate equity distribution agreements with fiveten sales agents. Under the terms ofNo shares have been sold under the current "at the market" equity distribution agreements, the Company may from time to time offer and sell shares of common stock, up to the aggregate offering price of $400,000,program. From January 1, 2021, through its sales agents. The current equity distribution agreements, dated May 6, 2016, replaced and superseded the previous equity distribution agreements, dated August 28, 2015.

During the year ended December 31, 2017,8, 2021, the Company sold no585,685 shares of common stock under its prior "at the market" equity program.

During July 2016, the Company sold 550,000 shares of common stock under the current “at the market” equity program at an average sales price of $92.04$115.90 per share resulting in net proceeds of $50,062. At December 31, 2017, the Company had $349,375 available for issuance under the existing equity distribution agreements.66,617.


From January 1, 2016, through May 6, 2016,On March 23, 2021, the Company sold 831,3001,600,000 shares of its common stock under the previous “at the market” equity programin a registered offering structured as a bought deal at an average salesa price of $89.66$129.13 per share resulting in net proceeds of $73,360.206,572.


On November 13, 2023, the Company's board of directors authorized a share repurchase program allowing for the repurchase of shares with an aggregate value up to $500,000. During September 2015,the year ended December 31, 2023, no shares were repurchased. As of December 31, 2023, the Company sold 410,000had remaining authorization to repurchase shares of common stock under the previous “at the market” equity program atwith an average sales price of $75.17 peraggregate value up to $500,000.
60


EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share resulting in net proceeds of $30,266.data, unless otherwise stated


On June 22, 2015, the Company issued and sold 6,325,000 shares of its common stock in a public offering at a price of $68.15 per share. The Company received gross proceeds of $431,049. The underwriting discount and transaction costs were $14,438, resulting in net proceeds of $416,611.
12.11.     NONCONTROLLING INTEREST REPRESENTED BY PREFERRED OPERATING PARTNERSHIP UNITS
Classification of Noncontrolling Interests
GAAP requires a company to present ownership interests in subsidiaries held by parties other than the company in the consolidated financial statements within the equity section, but separate from the company’s equity. It also requires the amount of consolidated net income attributable to the parent and to the noncontrolling interest to be clearly identified and presented on the face of the consolidated statement of operations and requires changes in ownership interest to be accounted for similarly as equity transactions. If noncontrolling interests are determined to be redeemable, they are to be carried at their redemption value as of the balance sheet date and reported as temporary equity.
The Company has evaluated the terms of the Operating Partnership’s preferred units and classifies the noncontrolling interest represented by such preferred units as stockholders’ equity in the accompanying consolidated balance sheets. The
EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated


Company will periodically evaluate individual noncontrolling interests for the ability to continue to recognize the noncontrolling amount as permanent equity in the consolidated balance sheets. Any noncontrolling interests that fail to qualify as permanent equity will be reclassified as temporary equity and adjusted to the greater of (1) the carrying amount, or (2) its redemption value as of the end of the period in which the determination is made.

As of December 31, 2017, the noncontrolling interests represented by Operating Partnership preferred units consisted of the following:
875,480 Series A Units;
1,676,087 Series B Units;
704,016 Series C Units; and
3,682,521 Series D Units.


At December 31, 20172023 and 2016,2022, the noncontrolling interests represented by the Preferred Operating PartnershipOP Units qualified for classification as permanent equity on the Company's consolidated balance sheets. The partnership agreement of the Operating Partnership (as amended, the "Partnership Agreement") provides for the designation and issuance of the OP Units. As of December 31, 2023 and 2022, noncontrolling interests in Preferred OP Units were presented net of notes receivable from Preferred Operating Partnership unit holders of $100,000 as of December 31, 2023 and 2022, respectively, as more fully described below. The balances for each of the specific preferred OP units as presented in the Statement of Noncontrolling Interests and Equity as of the periods indicated is as follows:

December 31, 2023December 31, 2022
Series A Units$— $16,498 
Series B Units33,567 33,568 
Series D Units188,793 211,436 
$222,360 $261,502 
Series A Participating Redeemable Preferred Units
The Partnership Agreement provides for the designation and issuance of the Series A Units. The Series A Units have priority over all other partnership interests of the Operating Partnership with respect to distributions and liquidation.
The Series A Units were issued in June 2007. Series A Units in the amount of $101,700 bear a fixed priority return of 2.3%, and originally had a fixed liquidation value of $115,000. The remaining balance participates in distributions with, and has a liquidation value equal to, that of the common OP Units. The Series A Units becameare redeemable at the option of the holder, on September 1, 2008, which redemption obligation may be satisfied, at the Company’s option, in cash or shares of its common stock. As a result of the redemption of 114,500 Series A Units in October 2014, the remaining fixed liquidation value was reduced to $101,700. On April 18, 2017, the holder of the$101,700 which represents 875,480 Series A Units and the Operating Partnership agreed to reduce the fixed priority return on the Series A Units from 5.0% to 2.3% in exchange for a reduction in the interest rate of the related loan, as more fully described below.
The Partnership Agreement provides for the designation and issuance of the Series A Units. The Series A Units have priority over all other partnership interests of the Operating Partnership with respect to distributions and liquidation.
On June 25, 2007, the Operating Partnership loaned the holders of the Series A Units $100,000. The note receivable bears interest at 2.1%. On April 18, 2017, a loan amendment was signed modifying the maturity date of the loan to the later of the death of the Series A Unit holder or his spouse and also lowering the interest rate of the loan from 4.9% to 2.1%. The loan amendment was determined to be a loan modification under GAAP, and therefore no change in value was recognized. The loan is secured by the borrower’s Series A Units. No future redemption of Series A Units can be made unless the loan secured by the Series A Units is also repaid. The Series A Units are shown on the balance sheet net of the $100,000 loan because the borrower under the loan is also the holder of the Series A Units.
On January 25, 2023, the redemption obligation for all outstanding Series A Units was satisfied in $5,000 cash and 851,698 shares of its common stock, which was net of the noncash settlement of the $100,000 loan. As a
result of this redemption, no Series A Units were outstanding as of December 31, 2023.
61


EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated

Series B Redeemable Preferred Units
The Partnership Agreement provides for the designation and issuance of the Series B Units. The Series B Units rank junior to the Series A Units, on parity with the Series C Units (defined below) and Series D Units, and senior to all other partnership interests of the Operating Partnership with respect to distributions and liquidation.
The Series B Units were issued in 2013 and 2014, have been redeemed at various times, and have a liquidation value of $25.00 per unit for a current fixed liquidation value of $41,902.$33,567 which represents 1,342,727 Series B Units outstanding at December 31, 2023. Holders of the Series B Units receive distributions at an annual rate of 6.0%. These distributions are cumulative. The Series B Units arebecame redeemable at the option of the holder on the first anniversary of the date of issuance, which redemption obligations may be satisfied at the Company’s option in cash or shares of its common stock. The Series B Units rank junior to the Series A Units, on parity with the Series C Units and Series D Units, and senior to all other partnership interests of the Operating Partnership with respect to distributions and liquidation.
Series C Convertible Redeemable Preferred Units
The Partnership Agreement provides for the designation and issuance of the Series C Units. The Series C Units rank ranked
junior to the Series A Units, on parity with the Series B Units and Series D Units, and senior to all other partnership interests of
the Operating Partnership with respect to distributions and liquidation.
EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store As of December 31, 2023 and share data, unless otherwise stated


The Series C UnitsDecember 31, 2022, there were issued in 2013 and 2014 and have a liquidation value of $42.10 per unit for a fixed liquidation value of $29,639. From issuance to the fifth anniversary of issuance, each Series C Unit holder will receive quarterly distributions equal to the quarterly distribution for common OP Unit plus $0.18. Beginning on the fifth anniversary of issuance, each Series C Unit holder will receive a fixed quarterly distribution equal to the aggregate quarterly distribution payable in respect of such Series C Unit during the four quarters immediately preceding the fifth anniversary of issuance divided by four. These distributions are cumulative. The Series C Units will become redeemable at the option of the holder one year from the date of issuance, which redemption obligation may be satisfied at the Company’s option in cash or shares of its common stock. The Series C Units will also become convertible into common OP Units at the option of the holder one year from the date of issuance, at a rate of 0.9145 common OP Units per Series C Unit converted. This conversion option expires upon the fifth anniversary of the date of issuance.
In December 2014, the Operating Partnership loaned holders of the Series C Units $20,230. The notes receivable, which are collateralized by the Series C Units, bear interest at 5.0% and mature on December 15, 2024. The Series C Units are shown on the balance sheet net of the $20,230 loan because the borrower under the loan receivable is also the holder of theno outstanding Series C Units.
Series D Redeemable Preferred Units
The Partnership Agreement provides for the designation and issuance of the Series D Units. The Series D Units rank junior to the Series A Units, on parity with the Series B Units and Series C Units, and senior to all other partnership interest of the Operating Partnership with respect to distributions and liquidation.
The Series D Units have been issued at various times from 2014 to 2017. During the year ended December 31, 2017, the Operating Partnership issued 446,420 Series D Units valued at $11,161 in conjunction with wholly-owned and joint venture acquisitions. During the year ended December 31, 2016, the Operating Partnership issued a total of 2,687,711 Series D Units valued at $67,193 in conjunction with the acquisition of real estate assets.

The Series D Units have a liquidation value of $25.00 per unit, for a current fixed liquidation value of $92,064.$188,793 which represents 7,551,735 Series D Units outstanding at December 31, 2023. Holders of the Series D Units receive distributions at an annual rate between 3.0% and 5.0%. These distributions are cumulative. The Series D Units will become redeemable at the option of the holder on the first anniversary of the date of issuance, which redemption obligation may be satisfied at the Company’s option in cash or shares of its common stock. In addition, certain of the Series D Units are exchangeable for common OP Units until the tenth anniversary of the date of issuance, with the number of common OP Units to be issued equal to $25.00 per Series D Unit, divided by the value of a share of common stock as of the exchange date.
In January 2023, 890,594 Series D units were redeemed for 154,307 shares of common stock. In November 2023, 15,093 Series D units were redeemed for cash of $377.
13.The Series D Units have been issued at various times from 2014 to 2022. On June 1, 2022, the Operating Partnership
issued a total of 240,000 Series D Units valued at $6,000 in connection with the acquisition of Bargold.
62


EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated

12.     NONCONTROLLING INTEREST IN OPERATING PARTNERSHIP AND OTHER NONCONTROLLING INTERESTS
Noncontrolling interest in Operating Partnership
The Company’s interest in its stores is held through the Operating Partnership. Between its general partner and limited partner interests, the Company held a 90.9%95.2% majority ownership interest thereinin the Operating Partnership as of December 31, 2017.2023. The remaining ownership interests in the Operating Partnership (including Preferred Operating Partnership units)OP Units) of 9.1%4.8% are held by certain former owners of assets acquired by the Operating Partnership. As of December 31, 2023 and 2022, the noncontrolling interests in the Operating Partnership are shown on the balance sheet net of notes receivable of $1,900 and $1,900, respectively, because the borrowers under the loan receivable are also holders of OP Units (Note 12). This loan receivable bears interest at 5.0% per annum and matures on December 15, 2024.
The noncontrolling interest in the Operating Partnership represents OP Units that are not owned by the Company. OP Units are redeemable at the option of the holder, which redemption may be satisfied at the Company's option in cash based upon the fair market value of an equivalent number of shares of the Company’s common stock (based on the ten-day average trading price) at the time of the redemption. Alternatively, the Company may, at its sole discretion, elect to acquire those OP Units in exchange forredemption, or shares of itsthe Company's common stock on a one-for-one basis, subject to anti-dilution adjustments provided in the Operating Partnership agreement. TheAs of December 31, 2023, the ten-day average closing stock price at December 31, 2017, was $86.77$156.68 and there were 5,664,3708,885,594 OP Units outstanding.
Assuming that all of the OP Unit holders exercised their right to redeem all of their OP Units on December 31, 20172023 and the Company elected to pay the OP Unit holders cash, the Company would have paid $491,497$1,392,195 in cash consideration to redeem the units.
EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated


OP Unit activity is summarized as follows for the periods presented:
 For the Year Ended December 31,
 201720162015
OP Units redeemed for common stock
23,850
787,850
OP Units redeemed for cash33,896
6,760

Cash paid for OP Units redeemed$2,510
$506
$
OP Units issued in conjunction with acquisitions90,228
93,569
2,043,613
Value of OP Units issued in conjunction with acquisitions$7,618
$7,247
$142,399
For the Year Ended December 31,
202320222021
OP Units redeemed for common stock2,803 — 165,652 
OP Units redeemed for cash1,000 24,824 4,500 
Cash paid for OP Units redeemed$108 $4,617 $788 
OP Units issued in conjunction with business combination and acquisitions1,674,748 711,037 897,803 
Value of OP Units issued in conjunction with business combination and acquisitions$249,470 $141,000 $188,319 
GAAP requires a company to present ownership interests in subsidiaries held by parties other than the company in the consolidated financial statements within the equity section but separate from the company’s equity. It also requires the amount of consolidated net income attributable to the parent and to the noncontrolling interest to be clearly identified and presented on the face of the consolidated statement of operations and requires changes in ownership interest to be accounted for similarly as equity transactions. If noncontrolling interests are determined to be redeemable, they are to be carried at their redemption value as of the balance sheet date and reported as temporary equity.
The Company has evaluated the terms of the common OP Units and classifies the noncontrolling interest represented by the common OP Units as stockholders’ equity in the accompanying consolidated balance sheets. The Company will periodically evaluate individual noncontrolling interests for the ability to continue to recognize the noncontrolling amount as permanent equity in the consolidated balance sheets. Any noncontrolling interests that fail to qualify as permanent equity will be reclassified as temporary equity and adjusted to the greater of (1) the carrying amount, or (2) its redemption value as of the end of the period in which the determination is made.
14.     OTHER NONCONTROLLING INTERESTSOther Noncontrolling Interests
Other noncontrolling interests represent the ownership interest of third partiespartners in twonine consolidated joint ventures as of December 31, 2017. One2023. These joint venture owns anventures have ownership in 12 stores; two are operating store and a development store in Texas. and a development store in Colorado, and the other owns a development property in Pennsylvania.remaining are under development. The voting interests of the third-party ownerspartners are 31% or less.
63


EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated

13.    LEASES
Lessee Accounting
The Company accounts for leases under ASC 842, "Leases." Right-of-use assets associated with operating leases are included in “Real estate assets - operating lease right-of-use assets” and operating lease liabilities are included in “Operating lease liabilities” on the Company's consolidated balance sheets. Right-of-use assets associated with finance leases are included in "Real estate assets, net" and finance lease liabilities are included in "Other liabilities" on the Company's consolidated balance sheets.
During the year ended December 31, 2023, the Company recorded no new finance lease right-of-use assets and finance lease liabilities.
The Company is lessee under several types of lease agreements. Generally, these leases fall into the following categories:
Leases of real estate at 65 stores classified as wholly-owned or in consolidated joint ventures. These leases generally have original lease terms between 5.0%10-99 years. Under these leases, the Company typically has the option to extend the lease term for additional terms of 5-35 years.
Leases of its corporate offices and 20.0%.call center. These leases have original lease terms between five and 14 years, with no extension options. In 2021 the Company modified and extended the lease of its corporate offices to add additional space and extend the lease until 2034.
Leases of 18 regional offices. These leases have original lease terms between three and five years. The Company has the option on certain of these leases to extend the lease term for up to three additional years.
15.Leases of small district offices. These leases generally have terms of 12 months or less. The Company has made an election to account for these under the short-term lease exception outlined under ASC 842. Therefore, no lease assets or liabilities are recorded related to these leases.

The Company has included lease extension options in the lease term for calculations of its right-of-use assets and liabilities related to the real estate asset leases at its stores when it is reasonably certain that the Company plans to extend the lease terms as the options arise.

Several of the leases of real estate at the Company’s stores include escalation clauses based on an index or rate, such as the Consumer Price Index (CPI). The Company included these lease payments in its calculations of right-of-use assets and liabilities based on the prevailing index or rate as of the adoption date. The Company will recognize changes to these variable lease payments in earnings in the period of change.
One of the real estate leases includes variable lease payments that are based upon a percentage of gross revenues. Certain other leases include additional variable payments relating to a percentage of sales in excess of a specified amount, common area maintenance, property taxes, and similar items. These payments are variable lease payments that do not depend on an index or rate and are excluded from the measurement of the lease liabilities and right-of-use-assets for these leases. The Company will recognize costs from these variable lease payments in the period in which the obligation for those payments is incurred.
As the Company’s leases do not provide an implicit rate, the Company uses its incremental borrowing rate based on the information available surrounding the Company’s unsecured borrowing rates and implied secured spread at the lease commencement date in determining the present value of lease payments. These discount rates vary depending on the term of the specific leases.
64


EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated

Following is information on our total lease costs as of the period indicated:
For the Year Ended December 31,
20232022
Finance lease cost:
     Amortization of finance lease right-of-use assets$3,961 $3,751 
     Interest expense related to finance lease liabilities4,483 4,018 
Operating lease cost35,783 32,182 
Variable lease cost11,632 11,287 
Short-term lease cost24 32 
          Total lease cost$55,883 $51,270 
Cash paid for amounts included in the measurement of lease liabilities
    Operating cash outflows for finance lease payments$4,483 $4,018 
    Operating cash outflows for operating lease payments29,234 25,384 
Total cash flows for lease liability measurement$33,717 $29,402 
Right-of-use assets obtained in exchange for new operating lease liabilities$265 $16,298 
Right-of-use assets obtained in exchange for new finance lease liabilities$— $6,823 
Weighted average remaining lease term - finance leases (years)54.0054.16
Weighted average remaining lease term - operating leases (years)18.6820.03
Weighted average discount rate - finance leases3.31 %3.31 %
Weighted average discount rate - operating leases3.91 %3.65 %

The following table presents information about the Company’s undiscounted cash flows on an annual basis for operating and finance leases, including a reconciliation of the undiscounted cash flows to the finance lease and operating lease liabilities recognized in the Company’s consolidated balance sheets:
OperatingFinanceTotal
2024$34,983 $6,542 $41,525 
202534,919 6,572 41,491 
202635,245 6,715 41,960 
202735,635 6,842 42,477 
202836,194 6,953 43,147 
Thereafter131,194 353,983 485,177 
Total$308,170 $387,607 $695,777 
Present value adjustments(71,655)(244,004)(315,659)
Lease liabilities$236,515 $143,603 $380,118 

65


EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated

Lessor Accounting
The Company's property rental revenue is primarily related to rents received from tenants at its operating stores. The Company's leases with its self-storage tenants are generally on month-to-month terms, include automatic monthly renewals, allow flexibility to increase rental rates over time as market conditions permit, and provide for the collection of contingent fees such as late fees. These leases do not include any terms or conditions that allow the tenants to purchase the leased space. All self-storage leases for which the Company acts as lessor have been classified as operating leases. The real estate assets related to the Company's stores are included in "Real estate assets, net" on the Company's condensed consolidated balance sheets and are presented at historical cost less accumulated depreciation and impairment, if any. Rental income related to these operating leases is included in "Property rental" revenue on the Company's condensed consolidated statements of operations, and is recognized each month during the month-to-month terms at the rental rate in place during each month.
14.     STOCK-BASED COMPENSATION

As ofDecember 31, 20172023, 1,653,855477,624 shareswere available for issuance under the Company’s 2015 Incentive Award Plan (the “Plan”).
Option grantsOptions are issued with an exercise price equal to the closing price of stock on the date of grant. Unless otherwise determined by the Compensation, Nominating and Governance Committee (“CNG Committee”) at the time of grant, options shall vest ratably over a four-year period beginning on the date of grant. Each option will be exercisable once it has vested. Options are exercisable at such times and subject to such terms as determined by the CNGCompensation Committee, but under no circumstances may be exercised if such exercise would cause a violation of the ownership limit in the Company’s charter. Options expire 10 years from the date of grant. Beginning in 2017, the CNG Committee decided to the replace stock options granted to executives with performance based stock units for executive compensation. See the "Performance-Based Stock Units" section below.
Also asAs defined under the terms of the Plan, restricted stock grants may be awarded. The stock grants are subject to a vesting period over which the restrictions are released and the stock certificates are given to the grantee. During the performance or vesting period, the grantee is not permitted to sell, transfer, pledge, encumber or assign shares of restricted stock granted under the Plan; however, the grantee has the ability to vote the shares and receive nonforfeitable dividends paid on shares. Unless otherwise determined by the CNGCompensation Committee at the time of grant, the forfeiture and transfer restrictions on the shares lapse over a one-year period or a four-year period beginning on the date of grant.
EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store For actions taken prior to July 2020, references to the Compensation Committee refer to its predecessor, the CNG Committee; the Board split the CNG Committee into two committees, the Compensation Committee and share data, unless otherwise statedthe Nominating and Governance Committee, effective July 1, 2020.


Option Grants
A summary of stock option activity is as follows:
OptionsNumber of SharesWeighted Average Exercise PriceWeighted Average Remaining Contractual Life (Years)Aggregate Intrinsic Value as of December 31, 2022
Outstanding at December 31, 202071,594 $74.54 
Exercised(62,322)73.36 
Outstanding at December 31, 20219,272 $82.47 
Exercised— — 
Outstanding at December 31, 20229,272 82.47 
Exercised— — 
Outstanding at December 31, 20239,272 $82.47 1.98$1,338
Vested9,272 $82.47 1.98$1,338
Ending Exercisable9,272 $82.47 1.98$1,338
OptionsNumber of Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Life (Years) Aggregate Intrinsic Value as of December 31, 2017
Outstanding at December 31, 2014568,727
 $16.62
    
Granted89,575
 69.93
    
Exercised(79,974) 18.79
    
Forfeited(5,699) 39.83
    
Outstanding at December 31, 2015572,629
 $24.42
    
Granted35,800
 85.99
    
Exercised(97,855) 14.75
    
Forfeited
 
    
Outstanding at December 31, 2016510,574
 $30.60
    
Exercised(38,418) 32.94
    
Outstanding at December 31, 2017472,156
 $30.41
 3.71 $26,934
Vested and Expected to Vest468,601
��$30.05
 3.68 $26,897
Ending Exercisable394,363
 $21.86
 2.96 $25,864


The aggregate intrinsic value in the table above represents the total value (the difference between the Company’s closing stock price on the last trading day of 20172023 and the exercise price, multiplied by the number of in-the-money options) that would have been received by the option holders had all option holders exercised their options on December 31, 2017.2023. The amount of
66


EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated

aggregate intrinsic value will change based on the fair market value of the Company’s stock.
The weighted average fairtotal intrinsic value of stock options granted in 2016exercised for the years ended December 31, 2023, 2022 and 2015,2021 was $20.30$0, $0 and $16.89,$3,925, respectively.
There werehave been no options granted in 2017.since 2016. The fair value of each option grant iswas estimated on the date of grant using the Black-Scholes option-pricing model with the following weighted average assumptions:
 For the Year Ended December 31,
 2016 2015
Expected volatility37.0% 38.0%
Dividend yield3.6% 3.6%
Risk-free interest rate1.3% 1.5%
Average expected term (years)5
 5
model. The Black-Scholes model incorporates assumptions to value stock-based awards. The risk-free rate is based on the U.S. Treasury yield curve in effect at the time of the grant for the estimated life of the option. The Company uses actual historical data to calculate the expected price volatility, dividend yield and average expected term. The forfeiture rate, which is estimated at a weighted-average of 7.4%4.6% of unvested options outstanding as of December 31, 2017,2023, is adjusted periodically based on the extent to which actual forfeitures differ, or are expected to differ, from the previous estimates.
EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated


A summary of stock options outstanding and exercisable as of December 31, 2017,2023, is as follows:
  Options Outstanding Options Exercisable
Exercise Price Shares Weighted Average Remaining Contractual Life Weighted Average Exercise Price Shares Weighted Average Exercise Price
$6.22 - $6.22 157,750
 1.13 $6.22
 157,750
 $6.22
$11.59 - $12.21 105,480
 2.17 12.04
 105,480
 12.04
$19.6 - $65.36 105,986
 5.20 39.89
 89,629
 36.47
$65.45 - $73.52 67,140
 7.47 71.46
 32,550
 71.65
$85.99 - $85.99 35,800
 8.15 85.99
 8,954
 85.99
$6.22-$85.99 472,156
 3.71 $30.41
 394,363
 $21.86
 Options OutstandingOptions Exercisable
Exercise PriceSharesWeighted Average Remaining Contractual LifeWeighted Average Exercise PriceSharesWeighted Average Exercise Price
$65.36 - $65.361,582 1.15$65.36 1,582 $65.36 
$85.99 - $85.997,690 2.1585.99 7,690 85.99 
The Company recorded no compensation expense relating to outstanding options of $649, $729 and $510 in general and administrative expense for the years ended December 31, 2017, 20162023, 2022 and 2015, respectively. Total cash2021. Net proceeds received for the years ended December 31, 2017, 20162023, 2022 and 2015,2021, related to option exercises was $1,265, $1,444$0, $0 and $1,542,$4,572, respectively. At December 31, 2017,2023, there was $869 of totalno unrecognized compensation expense related to non-vested stock options under the Plan. That cost is expected to be recognized over a weighted-average period of 1.56 years. The valuation model applied in this calculation utilizes subjective assumptions that could potentially change over time, including the expected forfeiture rate. Therefore, the amount of unrecognized compensation expense at December 31, 2017 noted above does not necessarily represent the expense that will ultimately be realized by the Company in the statement of operations.


Common Stock Granted to Employees and Directors
The Company recorded $8,072, $7,316$14,205, $12,086 and $5,545$9,260 of expense in general and administrative expense in its statement of operations related to restricted stock awards granted to employees and directors for the years ended December 31, 2017, 20162023, 2022 and 2015,2021, respectively. The forfeiture rate, which is estimated at a weighted-average of 10.1%10.0% of unvested awards outstanding as of December 31, 2017,2023, is adjusted periodically based on the extent to which actual forfeitures differ, or are expected to differ, from the previous estimates. At December 31, 20172023 there was $12,913$20,222 of total unrecognized compensation expense related to non-vested restricted stock awards under the Plan. That cost is expected to be recognized over a weighted-average period of 2.142.09 years. The fair value of common stock awards is determined based on the closing trading price of the Company’s common stock on the grant date.
67


EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated

A summary of the Company’s employee and director share grant activity is as follows:
Restricted Stock GrantsSharesWeighted-Average Grant-Date Fair Value
Unreleased at December 31, 2020209,032 $95.86 
Granted99,802 132.75 
Released(96,248)91.65 
Cancelled(12,808)113.89 
Unreleased at December 31, 2021199,778 $115.16 
Granted105,677 201.12 
Released(86,781)112.31 
Cancelled(10,614)147.03 
Unreleased at December 31, 2022208,060 $158.38 
Granted98,263 158.04 
Released(90,662)147.21 
Cancelled(10,084)165.36 
Unreleased at December 31, 2023205,577 $162.81 
Restricted Stock GrantsShares Weighted-Average Grant-Date Fair Value
Unreleased at December 31, 2014291,749
 $37.73
Granted174,558
 69.18
Released(129,808) 34.86
Cancelled(18,090) 44.54
Unreleased at December 31, 2015318,409
 $55.75
Granted119,931
 87.61
Released(128,808) 50.05
Cancelled(9,947) 67.36
Unreleased at December 31, 2016299,585
 $70.57
Granted95,392
 74.49
Released(120,323) 63.95
Cancelled(8,179) 77.25
Unreleased at December 31, 2017266,475
 $74.76

EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated



Performance-based Stock Units
In 2017, the CNG Committee changed its compensation for executives to issueThe performance-based stock units (the "PSUs") as a replacement for stock option awards. The PSUs granted to executives in March 2017 represent the right to earn shares of the Company's common stock. These awards have two financial performance components: (1) the Company's core FFO performance ("FFO Target"), and (2) the Company's total stockholder return relative to the performance of a defined group of peers ("TSR Target"). Each of these performance components are weighted 50% and are measured over the performance period, which is defined as the three-year period ending December 31 2019.from the year of grant. At the end of the performance period, the financial performance components are reviewed to determine the number of shares actually granted to executives, which can be as low as zero shares and up to a maximum of two shares issued for each PSU. A summary of the PSU activity is as follows:

Performance-Based Stock UnitsUnitsWeighted-Average Grant-Date Fair Value
Unvested at December 31, 2020123,311 $104.25 
Granted40,832 138.04 
Released(28,735)$117.19 
Unvested at December 31, 2021135,408 $111.69 
Granted61,085 223.96 
Released(49,334)$194.21 
Unvested at December 31, 2022147,159 $130.63 
Granted86,795 207.28 
Released(45,242)$162.18 
Unvested at December 31, 2023188,712 $158.32 
68


EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated

Performance-based Stock Units Units Weighted-Average Grant-Date Fair Value
Unvested at December 31, 2016 
 $
Granted 30,071
 83.84
Unvested at December 31, 2017 30,071
 83.84
     
The Company recorded $12,433, $9,299 and $8,043 of expense in general and administrative expense in its statement of operations related to PSUs granted to employees for the years ended December 31, 2023, 2022 and 2021, respectively. The Company estimated the fair value of the PSUs as of the grant date, using the closing trading price of the Company's common stock on the grant date to value the FFO Target portion. A Monte Carlo simulation model was used to calculate the fair value of the TSR Target portion of the PSUs, using an expected term of 2.8 years, a risk-free rate of 1.6%, and expected volatility of 21.4%. the following assumptions:
For the Year Ended December 31,
202320222021
Intrinsic value$30,256$21,659$30,701
Risk-free rate4.6%1.8%0.22%
Volatility29.3%29.3%28.5%
Expected term (in years)2.82.92.9
Dividend yield—%—%—%
Unrecognized compensation cost$18,798$13,241$8,859
Term over which compensation cost recognized (in years)333
Under the terms of the PSUs, dividends for the entire measurement period are paid in cash when the shares are issued,released, so a dividend yield of zero was used. The Monte Carlo simulation model incorporates assumptions to value stock-based awards. The risk-free rate is based on the U.S. Treasury yield curve in effect at the time of the grant for the estimated life of the PSUs.
Compensation cost is recognized ratably over the period from the date of grant to the end of the related performance period. The Company recognized compensation expense of $840 during the year ended December 31, 2017 related to the PSUs, which is included in general and administrative expense in the Company's consolidated statements of operations. The intrinsic value of unvested PSUs as of December 31, 2017 was $2,630.
As of December 31, 2017, there was $1,681 of total unrecognized compensation expense related to the PSUs under the Plan. That cost is expected to be recognized over a period of two years. The valuation model applied in this calculation utilizes subjective assumptions that could potentially change over time, including the probabilities associated with achieving the FFO Targets (categorized within Level 3 of the fair value hierarchy). Therefore, the amount of unrecognized compensation expense at December 31, 20172023 noted above does not necessarily represent the expense that will ultimately be realized by the Company in the statement of operations.
16.15.     EMPLOYEE BENEFIT PLAN
The Company has a retirement savings plan under Section 401(k) of the Internal Revenue Code under which eligible employees can contribute up to 60% of their annual salary, subject to a statutory prescribed annual limit. For the years ended December 31, 2017, 20162023, 2022 and 2015,2021, the Company made matching contributions to the plan of $2,212, $1,944$6,576, $5,169, and $1,680,$4,239 respectively, based on 100% of the first 3% and up to 50% of the next 2% of an employee’s compensation.
17.16.     INCOME TAXES
As a REIT, the Company is generally not subject to U.S. federal income tax with respect to that portion of its income which is distributed annually to its stockholders. However, the Company has elected to treat onecertain of its corporate subsidiaries, including Extra Space Management, Inc., as a taxable REIT subsidiary.TRS. In general, the Company’sa TRS may perform additional services for tenants and generally may engage in any real estate or non-real estate related business. A TRS is subject to U.S. federal corporate income tax.tax and may be subject to state and local income taxes. The Company accounts for income taxes in accordance with the provisions of ASC 740, “Income Taxes.” Deferred tax assets and liabilities are determined based on differences between financial reporting and tax bases of assets and liabilities. The Company has elected to use the Tax-Law-Ordering approach to determine when excess tax benefits will be realized.
On August 16, 2022, President Biden signed into law the Inflation Reduction Act (“IRA”). The provisions include the new Corporate Alternative Minimum Tax (“CAMT”), an excise tax on stock buybacks, and significant tax incentives for energy and climate initiatives, and all of these provisions were effective for tax year 2023. The Company has evaluated the impact of these provisions and does not expect the enactment of these provisions to have a material impact on the Company's consolidated financial statements.
69


EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated




The income tax provision for the years ended December 31, 2017, 20162023, 2022 and 2015,2021, is comprised of the following components:
 For the Year Ended December 31, 2023
 FederalStateTotal
Current expense$26,516 $6,035 $32,551 
Tax credits/true-up(7,742)— (7,742)
Change in deferred expense/(benefit)(4,151)901 (3,250)
Total tax expense$14,623 $6,936 $21,559 
 For the Year Ended December 31, 2022
 FederalStateTotal
Current expense$20,592 $4,546 $25,138 
Tax credits/true-up(6,071)31 (6,040)
Change in deferred expense1,909 (82)1,827 
Total tax expense$16,430 $4,495 $20,925 
 For the Year Ended December 31, 2017
 Federal State Total
Current expense$5,677
 $1,662
 $7,339
Tax credits/true-up(5,573) (383) (5,956)
Change in deferred expense1,700
 542
 2,242
Total tax expense$1,804
 $1,821
 $3,625
 For the Year Ended December 31, 2021
 FederalStateTotal
Current expense$21,017 $3,520 $24,537 
Tax credits/true-up(4,979)(138)(5,117)
Change in deferred benefit818 86 904 
Total tax expense$16,856 $3,468 $20,324 
 For the Year Ended December 31, 2016
 Federal State Total
Current expense$14,627
 $2,368
 $16,995
Tax credits/true-up(312) 
 (312)
Change in deferred benefit(369) (467) (836)
Total tax expense$13,946
 $1,901
 $15,847
 For the Year Ended December 31, 2015
 Federal State Total
Current expense$3,736
 $1,640
 $5,376
Tax credits/true-up274
 
 274
Change in deferred expense (benefit)7,016
 (1,518) 5,498
Total tax expense$11,026
 $122
 $11,148
A reconciliation of the statutory income tax provisions to the effective income tax provisions for the periods indicated is as follows:
 For the Year Ended December 31,
 202320222021
Expected tax at statutory rate$183,111 21.0 %$197,887 21.0 %$188,600 21.0 %
Non-taxable REIT income(161,316)(18.5)%(172,966)(18.4)%(166,137)(18.5)%
State and local tax expense - net of federal benefit8,779 1.0 %4,160 0.4 %3,259 0.4 %
Change in valuation allowance(1,148)(0.1)%(1,093)(0.1)%(1,061)(0.1)%
Tax credits/true-up(7,742)(0.9)%(6,040)(0.6)%(5,117)(0.6)%
Miscellaneous(125)— %(1,023)(0.1)%780 0.1 %
Total provision$21,559 2.5 %$20,925 2.2 %$20,324 2.3 %

70

 For the Year Ended December 31,
 2017 2016 2015
Expected tax at statutory rate$186,274
 35.0 % $144,708
 35.0 % $77,151
 35.0 %
Non-taxable REIT income(170,811) (32.1)% (131,112) (31.7)% (67,084) (30.4)%
State and local tax expense - net of federal benefit2,306
 0.4 % 2,399
 0.6 % 1,249
 0.6 %
Change in valuation allowance159
  % (845) (0.2)% (624) (0.3)%
Tax credits/true-up(5,956) (1.1)% (312) (0.1)% 274
 0.1 %
Remeasurement of deferred balances(8,460) (1.6)% 
  % 
  %
Miscellaneous113
  % 1,009
 0.2 % 182
 0.1 %
Total provision$3,625
 0.6 % $15,847
 3.8 % $11,148
 5.1 %


EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated



The major sources of temporary differences stated at their deferred tax effects are as follows:
 December 31, 2017 December 31, 2016
Deferred tax liabilities:   
Fixed assets$(15,271) $(16,488)
Other(108) (201)
State deferred taxes(2,822) (1,242)
Total deferred tax liabilities(18,201) (17,931)
    
Deferred tax assets:   
Captive insurance subsidiary252
 413
Accrued liabilities873
 2,741
Stock compensation1,287
 1,713
Solar credit43
 
Other57
 1,548
SmartStop TRS219
 365
State deferred taxes7,802
 6,078
Total deferred tax assets10,533
 12,858
    
Valuation allowance(4,924) (4,765)
    
Net deferred income tax liabilities$(12,592) $(9,838)
December 31, 2023December 31, 2022
Deferred tax liabilities:
Fixed assets$(36,572)$(32,551)
Operating and Finance lease right-of-use assets(6,831)(6,610)
Other(37)(48)
State deferred taxes(4,564)(3,607)
Captive insurance subsidiary(10,760)— 
Total deferred tax liabilities(58,764)(42,816)
Deferred tax assets:
Captive insurance subsidiary509 335 
Accrued liabilities3,015 2,541 
Stock compensation3,961 3,467 
Operating and Finance lease liabilities9,013 8,418 
Other502 48 
State deferred taxes2,581 5,232 
Total deferred tax assets19,581 20,041 
Valuation allowance— (1,148)
Net deferred income tax liabilities$(39,183)$(23,923)
The state income tax net operating losses expire between 20182024 and 2035.2043. The valuation allowance is associated with the state income tax net operating losses.losses was released in 2023. The tax years 20132019 through 20162022 remain open related to the state returns, and 20142020 through 20162022 for the federal returns.
Federal tax reform legislation that was enacted on December 22, 2017 (commonly known as the Tax Cuts and Jobs Act) (the “2017 Tax Legislation”) made substantial changes to the Internal Revenue Code. Among those changes are a reduction in the U.S. federal corporate tax rate from the previous rate of 35% to 21%, the elimination or modification of various currently allowed deductions, and a deduction for REIT stockholders that are individuals, trusts and estates of up to 20% of ordinary REIT dividends. Many of the provisions of the 2017 Tax Legislation will require guidance through the issuance of Treasury regulations in order to assess their effect. There may be a substantial delay before such regulations are issued, increasing the uncertainty as to the ultimate effect of the statutory amendments on the Company. It is also likely that there will be technical corrections legislation proposed with respect to the 2017 Tax Legislation, the effect of which cannot be predicted and may be adverse to the Company or its stockholders.
The SEC staff issued SAB 118, which provides guidance on accounting for the tax effects of the 2017 Tax Legislation. SAB 118 provides a measurement period that should not extend beyond one year from the Act enactment date for companies to complete the accounting under ASC 740. In accordance with SAB 118, a company must reflect the income tax effects of those aspects of the Act for which the accounting under ASC 740 is complete. To the extent that a company’s accounting for certain income tax effects of the Act is incomplete but it is able to determine a reasonable estimate, it must record a provisional estimate in the financial statements. If a company cannot determine a provisional estimate to be included in the financial statements, it should continue to apply ASC 740 on the basis of the provisions of the tax laws that were in effect immediately before the enactment of the 2017 Tax Legislation.
The Company remeasured certain deferred tax assets and liabilities based on the rates at which they are expected to reverse in the future, which is generally 21%. However, the Company is still analyzing certain aspects of the 2017 Tax Legislation and refining calculations, which could potentially affect the measurement of these balances or potentially give rise to new deferred tax amounts. The tax benefit recorded related to the remeasurement of the deferred tax balance and valuation allowance was $8,606, which is included as a component of income tax expense.
EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated


The impact of the 2017 Tax Legislation may differ from the Company’s estimates, possibly materially, due to, among other things, changes in interpretations and assumptions the Company has made, guidance that may be issued and actions the Company may take as a result of the 2017 Tax Legislation. The Company will continue to make and refine calculations as additional analysis is completed. In addition, the estimates may also be affected as the Company gains a more thorough understanding of the tax law.
18.17.     SEGMENT INFORMATION


The Company’s segment disclosures present the measure used by the chief operating decision makers ("CODMs") for purposes of assessing each segment’s performance. The Company’s CODMs are comprised of several members of its executive management team who use net operating income ("NOI") to assess the performance of the business for the Company’s reportable operating segments. The Company’s segments are comprised of two reportable segments: (1) self-storage operations and (2) tenant reinsurance. NOI for our self-storage operations represents total property revenue less direct property operating expenses. NOI for our tenant reinsurance segment represents tenant reinsurance revenues less tenant reinsurance expense.


The Company’s segments were historically comprised of three reportable segments: (1) rental operations; (2) tenant reinsurance; and (3) property management, acquisition and development. Based on how the CODMs reviews performance and makes decisions, the Company realigned its segments into two reportable segments: (1) self-storage operations and (2) tenant reinsurance. The self-storage operations activities include rental operations of wholly-owned stores.stores and Bargold. The Company's consolidated revenues equal total segment revenues plus property management fees and other income. Tenant reinsurance activities include the reinsurance of risks relating to the loss of goods stored by tenants in the stores operated by the Company. Excluded from segment revenues and net operating income is property management fees and other income.


For all periods presented, substantially all of our real estate assets, intangible assets, other assets, and accrued and other liabilities are associated with the self-storage operations segment. The prior periods have been restated to conform to the current presentation. Financial information for the Company’s business segments is set forth below:


71


EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated



Year Ended December 31,
202320222021
Revenues:
Self-Storage Operations$2,222,578 $1,654,735 $1,340,990 
Tenant Reinsurance235,680 185,531 170,108 
Total segment revenues$2,458,258 $1,840,266 $1,511,098 
Operating expenses:
Self-Storage Operations$612,036 $435,342 $368,608 
Tenant Reinsurance58,874 33,560 29,488 
Total segment operating expenses$670,910 $468,902 $398,096 
Net operating income:
Self-Storage Operations$1,610,542 $1,219,393 $972,382 
Tenant Reinsurance176,806 151,971 140,620 
Total segment net operating income:$1,787,348 $1,371,364 $1,113,002 
Total segment net operating income$1,787,348 $1,371,364 $1,113,002 
Other components of net income:
Property management fees and other income101,986 83,904 66,264 
Transaction costs— (1,548)— 
Life Storage Merger transition costs(66,732)— — 
General and administrative expense(146,408)(129,251)(102,194)
Depreciation and amortization expense(506,053)(288,316)(241,879)
Gain on real estate transactions— 14,249 140,760 
Interest expense(419,035)(219,171)(166,183)
Non-cash interest expense related to amortization of discount on equity component of exchangeable senior notes(18,786)— — 
Interest income84,857 69,422 49,703 
Equity in earnings and dividend income from unconsolidated real estate entities54,835 41,428 32,358 
Equity in earnings of unconsolidated real estate ventures - gain on sale of real estate assets— — 6,251 
Income tax expense(21,559)(20,925)(20,324)
Net income$850,453 $921,156 $877,758 

 Year Ended December 31,
 2017 2016 2015
Revenues:     
     Self-storage operations$967,229
 $864,742
 $676,138
     Tenant reinsurance98,401
 87,291
 71,971
          Total segment revenues$1,065,630
 $952,033
 $748,109
      
Operating expenses:     
     Self-storage operations$271,974
 $250,005
 $203,965
     Tenant reinsurance19,173
 15,555
 13,033
          Total segment operating expenses$291,147
 $265,560
 $216,998
      
Net operating income:     
     Self-storage operations$695,255
 $614,737
 $472,173
     Tenant reinsurance79,228
 71,736
 58,938
          Total segment net operating income$774,483
 $686,473
 $531,111
      
Total segment net operating income$774,483
 $686,473
 $531,111
Other components of net income (loss):     
Property management fees and other income39,379
 39,842
 34,161
General and administrative expense(78,961) (81,806) (67,758)
Depreciation and amortization expense(193,296) (182,560) (133,457)
Acquisition and other related costs(1)

 (12,111) (69,401)
     Gain (loss) on real estate transactions, earnout
from prior acquisition and sale of other assets
112,789
 8,465
 1,501
     Interest expense(153,511) (133,479) (95,682)
     Non-cash interest expense related to the amortization of
discount on equity component of exchangeable senior notes
(5,103) (4,980) (3,310)
     Interest income3,801
 6,148
 3,461
     Interest income on note receivable from Preferred Operating
Partnership unit holder
2,935
 4,850
 4,850
     Equity in earnings of unconsolidated real estate ventures15,331
 12,895
 12,351
     Equity in earnings of unconsolidated real estate ventures - gain
on sale of real estate assets and purchase of partners' interests

 69,199
 2,857
     Income tax expense(3,625) (15,847) (11,148)
          Net income$514,222
 $397,089
 $209,536

(1)    Beginning January 1, 2017, acquisition related costs have been capitalized due to the adoption of ASU 2017-01"Business Combinations (Topic 805): Clarifying the Definition of a Business."
EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated


19.18.     COMMITMENTS AND CONTINGENCIES
The Company has operating leases on its corporate offices and owns 23 stores that are subject to leases. AtAs of December 31, 2017, future minimum rental payments2023, the Company was under these non-cancelable operating leases were as follows (unaudited):
Less than 1 year$8,015
Year 27,521
Year 37,566
Year 47,448
Year 57,147
Thereafter114,729
 $152,426
Theagreement to acquire 8 stores at a total purchase price of $73,811. Eight stores are scheduled to close in 2024 and none are scheduled to close in 2025. Additionally, the Company recorded expenseis under agreement to acquire two stores in 2024 with joint venture partners, for a total investment of $6,898, $4,578 and $3,858 related to operating leases in the years ended December 31, 2017, 2016 and 2015, respectively.$2,764.
The Company is involved in various legal proceedings and is subject to various claims and complaints arising in the ordinary course of business. Because litigation is inherently unpredictable, the outcome of these matters cannot presently be determined with any degree of certainty. In accordance with applicable accounting guidance, management establishes an accrued liability for litigation when those matters present loss contingencies that are both probable and reasonably estimable. In such cases, there may be an exposure to loss in excess of any amounts accrued. The estimated loss, if any, is based upon currently available information and is subject to significant judgment, a variety of assumptions, and known and unknown uncertainties. Therefore, any estimate(s) of loss disclosed below represents what management believes to be an estimate of loss only for certain matters meeting these criteria
72


EXTRA SPACE STORAGE INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and does not represent the Company's maximum loss exposure.share data, unless otherwise stated

uncertainties. The Company could in the future incur judgments or enter into settlements of claims that could have a material adverse effect on its results of operations in any particular period, notwithstanding the fact that the Company is currently vigorously defending any legal proceedings against it. As of December 31, 2017,2023, the Company was involved in various legal proceedings and was subject to various claims and complaints arising in the ordinary course of business. In the opinion of management, such litigation, claims and complaints are not expected to have a material adverse effect on the Company’s financial condition or results of operations.
As of December 31, 2017, the Company was under agreement to acquire 14 stores at a total purchase price of $190,222. Of these stores, ten are scheduled to close in 2018 at a purchase price of $141,294, three are scheduled to close in 2019 at a purchase price of $38,400, and one is scheduled to close thereafter at a purchase price of $10,528. Additionally, the Company is under agreement to acquire 17 stores with joint venture partners, for a total investment of $88,203. Fourteen of these stores are scheduled to close in 2018, while the remaining three stores are expected to close in 2019.
The Company owns and/or operates stores located in Texas, Florida, and Puerto Rico that were impacted by Hurricanes Harvey, Irma, and Maria during the year ended December 31, 2017. Losses incurred to date by these hurricanes include property damage, net of insurance recoveries, of $2,110, and tenant reinsurance claims of $2,250, which are included in property operations and tenant reinsurance on the Company's condensed consolidated statements of operations.
Although there can be no assurance, the Company is not aware of any material environmental liability, for which it believes it will be ultimately responsible, that could have a material adverse effect on its financial condition or results of operations. However, changes in applicable environmental laws and regulations, the uses and conditions of properties in the vicinity of the Company’s properties, the activities of its tenants and other environmental conditions of which the Company is unaware with respect to its properties could result in future material environmental liabilities.
EXTRA SPACE STORAGE INC.
73
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
Amounts in thousands, except store and share data, unless otherwise stated



20.     SUPPLEMENTARY QUARTERLY FINANCIAL DATA (UNAUDITED)
 For the Three Months Ended
 March 31, 2017 June 30, 2017 September 30, 2017 December 31, 2017
Revenues$263,008
 $276,003
 $284,156
 $281,842
Cost of operations138,805
 139,596
 144,275
 140,728
Revenues less cost of operations$124,203
 $136,407
 $139,881
 $141,114
Net income$89,734
 $94,098
 $101,075
 $229,315
Net income attributable to common stockholders$82,282
 $87,006
 $93,764
 $215,983
Earnings per common share—basic$0.65
 $0.69
 $0.74
 $1.71
Earnings per common share—diluted$0.64
 $0.69
 $0.74
 $1.69
 For the Three Months Ended
 March 31, 2016 June 30, 2016 September 30, 2016 December 31, 2016
Revenues$229,403
 $244,273
 $257,183
 $261,016
Cost of operations135,775
 133,971
 134,459
 137,832
Revenues less cost of operations$93,628
 $110,302
 $122,724
 $123,184
Net income$89,407
 $90,040
 $127,226
 $90,416
Net income attributable to common stockholders$82,592
 $83,044
 $118,088
 $82,403
Earnings per common share—basic$0.66
 $0.66
 $0.94
 $0.65
Earnings per common share—diluted$0.66
 $0.66
 $0.93
 $0.65
21.     SUBSEQUENT EVENTS
Subsequent to year end the Company has purchased five stores for a total of $69,852.
On February 2, 2018, the Company and Teachers Insurance and Annuity ("TIAA") entered into the Third Amended and Restated Limited Liability Company Agreement of Storage Portfolio I LLC (as amended, the "SP I LLC Agreement"). The amendment to the SP I LLC Agreement is deemed effective as of January 1, 2018. Under the SP I LLC Agreement, the joint venture was recapitalized and the Company's ownership percentage of the SP I joint venture increased to 34.0%. Additionally, the Company's excess profit participation percentage increased to 49.0%.


Extra Space Storage Inc.
Schedule III
Real Estate and Accumulated Depreciation
(Dollars in thousands)
As of December 31, 20172023




 Building and Improvements Initial Cost Adjustments and Costs to Land and Building Subsequent to Acquisition Gross carrying amount at December 31, 2023
Self - Storage Facilities by State:Store Count Land Initial Cost Building and ImprovementsAccumulated Depreciation
 Debt Land Total
AL37$5,686 $52,358 $380,499 $5,593 $52,356 $386,094 $438,450 $18,152 
AZ4622,349 135,775 523,811 14,566 135,774 538,378 674,152 44,843 
CA218328,992 921,260 2,322,145 250,704 919,806 2,574,302 3,494,108 436,926 
CO2726,374 49,985 192,497 20,004 50,703 211,783 262,486 33,009 
CT236,399 43,453 373,628 6,530 43,452 380,158 423,610 18,276 
FL245167,386 672,426 2,894,604 122,780 674,576 3,015,234 3,689,810 239,687 
GA11978,837 303,954 1,179,911 47,713 303,941 1,227,636 1,531,577 123,363 
HI14— 29,836 160,978 22,962 29,836 183,939 213,775 43,351 
ID2— 4,047 25,235 59 4,047 25,294 29,341 812 
IL10516,231 210,472 1,107,463 43,952 209,924 1,151,964 1,361,888 82,109 
IN91— 64,531 494,467 14,626 64,875 524,169 589,044 34,445 
KS1— 366 1,897 1,150 366 3,047 3,413 1,555 
KY1530,470 10,026 88,389 21,129 10,799 108,745 119,544 21,462 
LA10— 16,673 126,604 5,591 16,674 132,194 148,868 8,844 
MA6439,808 120,291 534,152 65,286 120,472 599,257 719,729 123,019 
MD4474,081 157,195 450,952 36,025 156,605 487,567 644,172 111,043 
ME5— 2,352 86,339 195 2,352 86,534 88,886 926 
MI84,301 10,900 63,388 6,630 10,900 70,018 80,918 13,061 
MN8— 14,925 104,513 6,940 14,925 111,453 126,378 10,240 
MO28— 31,800 347,070 8,250 31,758 355,362 387,120 13,743 
MS7— 9,053 82,098 1,977 9,052 84,076 93,128 5,559 
NC52— 93,492 557,728 14,431 93,489 572,161 665,650 32,134 
NH17— 50,952 195,719 1,735 51,015 197,391 248,406 5,097 
NJ8899,207 308,001 1,071,004 70,630 313,354 1,136,281 1,449,635 209,349 
NM1125,153 31,826 68,779 6,909 31,826 75,689 107,515 17,000 
NV3330,458 97,497 469,028 9,504 97,497 478,532 576,029 23,846 
NY7912,895 340,256 1,195,359 66,207 340,991 1,260,831 1,601,822 105,190 
OH5010,140 71,460 388,236 13,917 71,459 402,154 473,613 24,721 
OK4— 3,917 28,534 159 3,917 28,693 32,610 429 
OR823,904 15,066 68,044 2,938 15,066 70,982 86,048 14,126 
PA3110,635 57,671 356,325 29,609 56,997 386,607 443,604 46,425 
RI63,712 6,132 55,033 1,793 6,131 56,827 62,958 4,517 
SC4027,701 65,032 385,333 13,408 65,036 398,737 463,773 41,190 
TN2944,491 50,603 252,731 15,296 50,603 268,027 318,630 36,356 
TX241104,794 534,804 2,603,707 97,822 534,655 2,701,678 3,236,333 212,009 
UT1016,265 9,008 39,295 9,775 9,008 49,070 58,078 15,445 
VA7356,422 198,998 842,848 37,952 198,998 880,800 1,079,798 127,878 
WA144,874 51,011 147,943 13,780 51,013 161,720 212,733 19,542 
WI1— 1,076 16,054 70 1,076 16,123 17,199 173 
DC17,540 14,394 18,172 634 14,394 18,806 33,200 3,904 
Other corporate assets— — — 245,910 — 245,910 245,910 92,553 
Intangible tenant relationships and lease rights— — 348,762 — — 348,762 348,762 204,135 
Construction in Progress/Undeveloped Land— 22,985 2,779 124,265 34,987 118,745 153,732 — 
Right of use asset - finance lease— — — 143,841 — 143,843 143,843 3,960 
Totals (1)
1,905$1,279,105 $4,885,859 $20,652,053 $1,623,247 $4,904,705 $22,275,573 $27,180,278 $2,624,404 

(1) No right-of-use assets related to operating leases are included in the ending net real estate assets information above.
74
     Building and Improvements Intial Cost Adjustments and Costs Subsequent to Acquisition Gross carrying amount at December 31, 2017 
Self - Storage Facilities by State:Store Count  Land Intial Cost  Building and Improvements Accumulated Depreciation
 Debt Land Total
AL8$28,937
$7,690
$42,770
$2,749
$7,691
$45,518
$53,209
$5,629
AZ2239,996
24,250
109,844
7,614
24,248
117,460
141,708
16,873
CA145669,690
449,865
1,050,646
82,601
450,072
1,133,040
1,583,112
194,614
CO1328,411
9,785
45,004
12,959
9,972
57,776
67,748
14,611
CT714,364
9,875
50,966
3,351
9,874
54,318
64,192
6,657
FL82325,016
141,187
532,262
41,778
142,081
573,146
715,227
97,830
GA55124,373
70,611
334,343
19,789
70,602
354,141
424,743
37,953
HI939,041
17,663
133,870
4,703
17,663
138,573
156,236
17,887
IL3175,753
44,427
225,423
19,708
43,449
246,109
289,558
28,278
IN1516,511
12,447
58,247
4,728
12,447
62,975
75,422
7,870
KS1
366
1,897
491
366
2,388
2,754
916
KY1031,023
7,914
61,852
4,099
7,914
65,951
73,865
7,675
LA28,731
6,114
8,541
1,252
6,115
9,792
15,907
3,615
MA41109,919
61,040
217,696
34,110
61,221
251,625
312,846
63,898
MD32144,812
99,147
284,253
12,225
98,419
297,206
395,625
53,154
MI62,785
7,657
38,777
1,865
7,657
40,642
48,299
2,744
MN1
1,528
16,030
240
1,528
16,270
17,798
523
MO514,671
4,129
15,444
2,977
4,086
18,464
22,550
6,143
MS3
2,420
20,849
1,338
2,420
22,187
24,607
1,342
NC1630,490
28,298
91,659
3,300
28,296
94,961
123,257
5,391
NH26,109
754
4,054
1,011
817
5,002
5,819
2,074
NJ55206,391
117,000
490,627
29,396
117,447
519,576
637,023
97,042
NM1011,513
22,889
61,575
3,521
22,889
65,096
87,985
5,103
NV1428,990
15,252
74,376
3,562
15,252
77,938
93,190
5,834
NY22117,779
121,479
232,875
20,664
122,215
252,803
375,018
44,859
OH1637,286
16,677
40,923
5,295
16,676
46,219
62,895
9,769
OR631,070
7,906
39,576
1,116
7,906
40,692
48,598
5,261
PA1629,140
22,176
123,544
8,138
21,468
132,390
153,858
16,058
RI27,852
3,191
6,926
946
3,191
7,872
11,063
2,426
SC2344,315
37,075
135,760
8,265
37,076
144,024
181,100
14,133
TN1748,717
25,938
91,497
6,246
25,938
97,743
123,681
12,135
TX97291,418
166,643
629,982
43,395
166,625
673,395
840,020
71,866
UT1021,938
9,008
39,295
9,636
9,008
48,931
57,939
7,515
VA44204,498
132,362
390,878
13,872
132,363
404,749
537,112
44,694
WA832,080
12,528
47,645
1,791
12,530
49,434
61,964
8,581
DC19,304
14,394
18,172
326
14,394
18,498
32,892
812
Other corporate assets


2,202
97,501

99,703
99,703
25,948
Intangible tenant relationships and lease rights 

126,819


126,819
126,819
112,347
Construction in Progress/Undeveloped Land 
17,874

29,275
13,245
33,904
47,149

Totals847$2,832,923
$1,749,559
$5,897,098
$545,834
$1,745,161
$6,447,330
$8,192,491
$1,060,060




Extra Space Storage Inc. Schedule III (continued)


Activity in real estate facilities during the years ended December 31, 2017, 20162023, 2022 and 20152021 is as follows:
202320222021
Operating facilities
Balance at beginning of year$12,084,025 $10,643,722 $9,507,788 
Acquisitions14,715,285 1,390,463 1,500,703 
Improvements175,932 95,282 80,131 
Transfers from construction in progress87,485 70,565 62,462 
Dispositions and other(1,194)(116,007)(507,362)
Balance at end of year$27,061,533 $12,084,025 $10,643,722 
Accumulated depreciation:
Balance at beginning of year$2,138,395 $1,868,321 $1,681,429 
Depreciation expense486,010 276,155 230,445 
Dispositions and other— (6,081)(43,553)
Balance at end of year$2,624,405 $2,138,395 $1,868,321 
Real estate under development/redevelopment:
Balance at beginning of year$52,348 $59,248 $67,443 
Current development153,920 63,597 54,267 
Transfers to operating facilities(87,523)(70,565)(62,462)
Dispositions and other— 68 — 
Balance at end of year$118,745 $52,348 $59,248 
Net non-lease real estate assets$24,555,873 $9,997,978 $8,834,649 
 2017 2016 2015
Operating facilities     
Balance at beginning of year$7,649,448
 $6,392,487
 $4,722,162
Acquisitions628,391
 1,159,304
 1,609,608
Improvements71,090
 92,480
 46,696
Transfers from construction in progress19,079
 26,400
 19,971
Dispositions and other(209,267) (21,223) (5,950)
Balance at end of year$8,158,741
 $7,649,448
 $6,392,487
Accumulated depreciation:     
Balance at beginning of year$900,861
 $728,087
 $604,336
Depreciation expense185,903
 174,906
 123,751
Dispositions and other(26,704) (2,132) 
Balance at end of year$1,060,060
 $900,861
 $728,087
Real estate under development/redevelopment:     
Balance at beginning of year$21,860
 $24,909
 $17,870
Current development33,484
 23,404
 27,010
Transfers to operating facilities(19,079) (26,400) (19,971)
Dispositions and other(2,515) (53) 
Balance at end of year$33,750
 $21,860
 $24,909
Net real estate assets$7,132,431
 $6,770,447
 $5,689,309
(1) No right-of-use assets related to operating leases are included in the ending net real estate assets information above.
As of December 31, 2017,2023, the aggregate cost of real estate for U.S. federal income tax purposes was $6,914,712.

$17,961,173.

75


Item 9.     Changes in anand Disagreements with Accountants on Accounting and Financial Disclosure
None.
Item 9A.     Controls and Procedures
(i)Disclosure Controls and Procedures
(i)Disclosure Controls and Procedures
We maintain disclosure controls and procedures to ensure that information required to be disclosed in the reports we file pursuant to the Securities Exchange Act of 1934, as amended (the “Exchange Act”), are recorded, processed, summarized and reported within the time periods specified in the rules and forms of the SEC, and that such information is accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure based on the definition of “disclosure controls and procedures” in Rule 13a-15(e) of the Exchange Act. In designing and evaluating the disclosure controls and procedures, management recognized that any controls and procedures, no matter how well designed and operated, can only provide reasonable assurance of achieving the desired control objectives, and in reaching a reasonable level of assurance, management necessarily was required to apply its judgment in evaluating the cost-benefit relationship of possible controls and procedures.
We have a disclosure committee that is responsible for considering the materiality of information and determining the disclosure obligations of the Company on a timely basis. The disclosure committee meets quarterly and reports directly to our Chief Executive Officer and Chief Financial Officer.
We carried out an evaluation, under the supervision and with the participation of management, including our Chief Executive Officer and Chief Financial Officer, of the effectiveness of the design and operation of our disclosure controls and procedures as of the end of the period covered by this Annual Report. Based upon that evaluation, our Chief Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures were effective at the reasonable assurance level as of the end of the period covered by this report. 
(ii)Internal Control over Financial Reporting

(ii)Internal Control over Financial Reporting
(a)Management’s Report on Internal Control over Financial Reporting

1.Management’s Report on Internal Control over Financial Reporting
    
Our management is responsible for establishing and maintaining adequate internal control over financial reporting as defined in Rule 13a-15(f) of the Exchange Act. 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 issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework). Based on our evaluation, our management concluded that our internal control over financial reporting was effective as of December 31, 2017.2023. Because of its 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 risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate. Our independent registered public accounting firm, Ernst & Young LLP, has issued the following attestation report over our internal control over financial reporting.


(b)Attestation Report of the Registered Public Accounting Firm
(b)Attestation Report of the Registered Public Accounting Firm
Report of Independent Registered Public Accounting Firm
TheTo the Stockholders and the Board of Directors and Stockholders of Extra Space Storage Inc.
Opinion on Internal Control overOver Financial Reporting
We have audited Extra Space Storage Inc.’s internal control over financial reporting as of December 31, 2017,2023, based on criteria established in Internal Control-IntegratedControl—Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework) (the COSO criteria). In our opinion, Extra Space Storage Inc. (the Company) maintained, in all material respects, effective internal control over financial reporting as of December 31, 2017,2023, based on the COSO criteria.
We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated balance sheets of the Company as of December 31, 20172023 and 2016, and2022, the related consolidated
76


statements of operations, comprehensive income, stockholders’stockholders' equity and cash flows for each of the three years in the period


ended December 31, 2017,2023, and the related notes and financial statement schedule listed in the Index at Item 8 and our report dated March 1, 2018February 29, 2024 expressed an unqualified opinion thereon.
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’sCompany’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/ Ernst & Young LLP

Salt Lake City, Utah
March 1, 2018February 29, 2024


(c)Changes in Internal Control over Financial Reporting
(c)Changes in Internal Control over Financial Reporting
There was no change in our internal control over financial reporting (as such term is defined in Exchange Act Rule 13a-15(f)) that occurred during our most recent quarter that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.
Item 9B.     Other Information
On December 18, 2023, Joseph D. Margolis, our Chief Executive Officer and Director, terminated a Rule 10b5-1 trading arrangement intended to satisfy the affirmative defense of Rule 10b5-1(c) and originally adopted on February 24, 2023, for the sale of up to 20,000 shares of our common stock until January 3, 2024.

Item 9C.     Disclosure Regarding Foreign Jurisdictions that Prevent Inspections

None.

77



PART III
Item 10.     Directors, Executive Officers and Corporate Governance
Information required by this item is incorporated by reference to the information set forth under the captions “Executive Officers,” and “Information About the Board of Directors and its Committees” in our definitive Proxy Statement to be filed with the Securities and Exchange Commission pursuant to Regulation 14A within 120 days after December 31, 2017.2023.
We have adopted a Code of Business Conduct and Ethics in compliance with rules of the SEC that applies to all of our personnel, including our board of directors, Chief Executive Officer, Chief Financial Officer and principal accounting officer. The Code of Business Conduct and Ethics is available free of charge on the “Investor Relations—Corporate Governance” section of our web site at www.extraspace.com. We intend to satisfy any disclosure requirements under Item 5.05 of Form 8-K regarding amendment to, or waiver from, a provision of this Code of Business Conduct and Ethics by posting such information on our web site at the address and location specified above.
The board of directors has adopted Corporate Governance Guidelines and charters for our Audit Committee and Compensation, Nominating and Governance Committee, each of which is posted on our website at the address and location specified above. Investors may obtain a free copy of the Code of Business Conduct and Ethics, the Corporate Governance Guidelines and the committee charters by contacting the Investor Relations Department at 2795 East Cottonwood Parkway, Suite 300, Salt Lake City, Utah 84121, Attn: Jeff Norman or by telephoning (801) 365-4600.
Item 11.     Executive Compensation
Information with respect to executive compensation is incorporated by reference to the information set forth under the caption “Executive Compensation” in our definitive Proxy Statement to be filed with the Securities and Exchange Commission pursuant to Regulation 14A within 120 days after December 31, 2017.2023.
Item 12.     Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters
Information with respect to security ownership of certain beneficial owners and management and related stockholder matters is incorporated by reference to the information set forth under the captions “Executive Compensation” and “Security Ownership of Directors and Officers” in our definitive Proxy Statement to be filed with the Securities and Exchange Commission pursuant to Regulation 14A within 120 days after December 31, 2017.2023.
Item 13.     Certain Relationships and Related Transactions, and Director Independence
Information with respect to certain relationships and related transactions is incorporated by reference to the information set forth under the captions “Information about the Board of Directors and its Committees” and “Certain Relationships“Review and Approval of Related Party Transactions” in our Proxy Statement to be filed with the Securities and Exchange Commission pursuant to Regulation 14A within 120 days after December 31, 2017.2023.
Item 14.     Principal Accounting Fees and Services
Information with respect to principal accounting fees and services is incorporated by reference to the information set forth under the caption “Ratification of Appointmentthe Engagement of Ernst & Young LLP as the Company’s Independent Registered Public Accounting Firm”Firm for 2023” in our Proxy Statement to be filed with the Securities and Exchange Commission pursuant to Regulation 14A within 120 days after December 31, 2017.

2023.

78


PART IV
 
Item 15.     Exhibits and Financial Statement Schedules
(a)Documents filed as part of this report:
(a)Documents filed as part of this report:
(1) and (2). All Financial Statements and Financial Statement Schedules filed as part of this Annual Report on 10-K are included in Item 8—“Financial Statements and Supplementary Data” of this Annual Report on 10-K and reference is made thereto.
(3) The following documents are filed or incorporated by references as exhibits to this report:
Exhibit
Number
Exhibit DescriptionIncorporated by ReferenceFiled Herewith
FormDateNumber
2.18-KApril 3, 20232.1
2.28-KJuly 20, 20232.2
3.1S-11August 10, 20043.1
3.28-KOctober 3, 20073.1
3.38-KAugust 29, 20133.1
3.48-KMay 28, 20143.1
3.58-KJanuary 17, 20183.1
3.68-KDecember 6, 201310.1
4.110-KFebruary 26, 20104.3
4.210-KFebruary 25, 20204.6
4.38-KMay 11, 20214.1
4.48-KMay 11, 20214.2
4.58-KSeptember 22, 20214.2
4.68-KMarch 31, 20224.2
79


Exhibit
Number
Exhibit DescriptionIncorporated by ReferenceFiled Herewith
FormDateNumber
4.78-KMarch 28, 20234.2
4.88-KJune 16, 20234.2
4.98-KJuly 25, 20234.4
4.108-KJuly 25, 20234.5
4.118-KJuly 25, 20234.6
4.128-KJuly 25, 20234.7
4.138-KJuly 25, 20234.8
4.148-KDecember 1, 20234.2
4.158-KJanuary 19, 20244.2
4.168-KJuly 25, 20234.1
80


Exhibit
Number
Exhibit DescriptionIncorporated by ReferenceFiled Herewith
FormDateNumber
4.178-KJuly 25, 20234.2
10.1S-11/AJuly 26, 200410.14
10.28-KJune 24, 200510.2
10.38-KJune 26, 200710.2
10.48-KJune 26, 200710.3
10.58-KApril 16, 201210.1
10.610-QMay 8, 201410.1
10.710-QMay 5, 201710.1
10.8*8-KAugust 31, 201010.1
10.9*DEFA14AApril 14, 2015Definitive Proxy Statement
10.10*10-KFebruary 26, 202010.13
10.11*DEFA14AApril 14, 2008Definitive Proxy Statement
10.12*10-KFebruary 26, 201010.11
10.13*10-QNovember 7, 200710.2
10.14*X
10.158-KJune 27, 202310.1
21.1X
22.1X
23.1X
31.1X
31.2X
81


Exhibit
Number
Exhibit DescriptionDescriptionIncorporated by ReferenceFiled Herewith
FormDatePurchase and Sale Agreement, dated May 5, 2005 by and among Security Capital Self Storage Incorporated, as seller and Extra Space Storage LLC, PRISA Self Storage LLC, PRISA II Self Storage LLC, PRISA III Self Storage LLC, VRS Self Storage LLC, WCOT Self Storage LLC and Extra Space Storage LP, as purchaser parties and The Prudential Insurance Company of America (incorporated by reference to Exhibit 2.1 of Form 8-K filed on May 11, 2005).Number
32.1Agreement and Plan of Merger, dated as of June 15, 2015, among Extra Space Storage Inc., Extra Space Storage LP, Edgewater REIT Acquisition (MD) LLC, Edgewater Partnership Acquisition (DE) LLC, SmartStop Self Storage, Inc. and SmartStop Self Storage Operating Partnership, L.P. (incorporated by reference to Exhibit 2.1 of Form 8-K filed on June 15, 2015).
Amendment No. 1 to Agreement and Plan of Merger, dated as of July 16, 2015, among Extra Space Storage Inc., Extra Space Storage LP, Edgewater REIT Acquisition (MD) LLC, Edgewater Partnership Acquisition (DE) LLC, SmartStop Self Storage, Inc. and SmartStop Self Storage Operating Partnership, L.P. (incorporated by reference to Exhibit 2.1 of Form 8-K filed on July 16, 2015).
Amended and Restated Articles of Incorporation of Extra Space Storage Inc.(1)
Articles of Amendment of Extra Space Storage Inc., dated September 28, 2007 (incorporated by reference to Exhibit 3.1 of Form 8-K filed on October 3, 2007).
Articles of Amendment of Extra Space Storage Inc., dated August 29, 2013 (incorporated by reference to Exhibit 3.1 of Form 8-K filed on August 29, 2013).
Amended and Restated Bylaws of Extra Space Storage Inc.(incorporated by reference to Exhibit 3.1 of Form 8-K filed on May 26, 2009)
Amendment No. 1 to Amended and Restated Bylaws of Extra Space Storage Inc. (incorporated by reference to Exhibit 3.1 of Form 8-K filed December 23, 2014).
Fourth Amended and Restated Agreement of Limited Partnership of Extra Space Storage LP (incorporated by reference to Exhibit 10.1 of Form 8-K filed on December 6, 2013).
Declaration of Trust of ESS Holdings Business Trust II.(1)
Junior Subordinated Indenture dated as of July 27, 2005, between Extra Space Storage LP and JPMorgan Chase Bank, National Association, as trustee (incorporated by reference to Exhibit 4.1 of Form 8-K filed on August 2, 2005).
Amended and Restated Trust Agreement, dated as of July 27, 2005, among Extra Space Storage LP, as depositor and JPMorgan Chase Bank, National Association, as property trustee, Chase Bank USA, National Association, as Delaware trustee, the Administrative Trustees named therein and the holders of undivided beneficial interest in the assets of ESS Statutory Trust III (incorporated by reference to Exhibit 4.2 of Form 8-K filed on August 2, 2005).
Junior Subordinated Note (incorporated by reference to Exhibit 4.3 of Form 10-K filed on February 26, 2010)
Trust Preferred Security Certificates (incorporated by reference to Exhibit 4.4 of Form 10-K filed on February 26, 2010)
Indenture, dated June 21, 2013, among Extra Space Storage LP, Extra Space Storage Inc. and Wells Fargo Bank, National Association, as trustee, including the form of 2.375% Exchangeable Senior Notes due 2033 and form of guarantee (incorporated by reference to Exhibit 4.1 of Form 8-K filed on June 21, 2013).
Indenture, dated September 21, 2015, among Extra Space Storage LP, as issuer, Extra Space Storage Inc., as guarantor, and Wells Fargo Bank, National Association, as trustee, including the form of 3.125% Exchangeable Senior Notes due 2035 and the form of guarantee (incorporated by reference to Exhibit 4.1 of Form 8-K filed on September 21, 2015).
Registration Rights Agreement, by and among Extra Space Storage Inc. and the parties listed on Schedule I thereto.(1)


Exhibit
Number
Description
Joint Venture Agreement, dated June 1, 2004, by and between Extra Space Storage LLC and Prudential Financial, Inc.(1)
Registration Rights Agreement, dated June 20, 2005, among Extra Space Storage Inc. and the investors named therein (incorporated by reference to Exhibit 10.2 of Form 8-K filed on June 24, 2005).
Purchase Agreement, dated as of July 27, 2005, among Extra Space Storage LP, ESS Statutory Trust III and the Purchaser named therein (incorporated by reference to Exhibit 10.1 of Form 8-K filed on August 2, 2005).
Registration Rights Agreement, dated March 27, 2007, among Extra Space Storage LP, Extra Space Storage Inc., Citigroup Global Markets Inc. and Merrill Lynch, Pierce, Fenner & Smith Incorporated (incorporated by reference to Exhibit 10.1 of Form 8-K filed on March 28, 2007).
Promissory Note, dated June 25, 2007, among Extra Space Storage LP, H. James Knuppe and Barbara Knuppe (incorporated by reference to Exhibit 10.2 of Form 8-K filed on June 26, 2007).
Pledge Agreement, dated June 25, 2007, among Extra Space Storage LP, H. James Knuppe and Barbara Knuppe (incorporated by reference to Exhibit 10.3 of Form 8-K filed on June 26, 2007).
Registration Rights Agreement among Extra Space Storage LP, H. James Knuppe and Barbara Knuppe. (incorporated by reference to Exhibit 10.26 of Form 10-K filed on February 26, 2010)
Membership Interest Purchase Agreement, dated as of April 13, 2012, between Extra Space Properties Sixty Three LLC and PRISA III Co-Investment LLC (incorporated by reference to Exhibit 10.1 of Form 8-K filed on April 16, 2012).
Extra Space Storage Inc. Executive Change in Control Plan (incorporated by reference to Exhibit 10.1 of Form 8-K filed on August 31, 2010).
Registration Rights Agreement, dated June 21, 2013, among Extra Space Storage LP, Extra Space Storage Inc., Citigroup Global Markets Inc. and Wells Fargo Securities, LLC (incorporated by reference to Exhibit 10.1 of Form 8-K filed on June 21, 2013).
Letter Agreement, dated as of November 22, 2013, amending the Contribution Agreement, dated June 15, 2007, among Extra Space Storage LP and various limited partnerships affiliated with AAAAA Rent-A-Space, and the Promissory Note, dated June 25, 2007, among Extra Space Storage LP, H. James Knuppe and Barbara Knuppe (incorporated by reference to Exhibit 10.1 of Form 10-Q filed on May 8, 2014).
Letter Agreement, dated April 18, 2017, amending the Promissory Note and Waiving a Portion of the Series A Preferred Priority Return, among Extra Space Storage LP, ESS Holdings Business Trust I, H. James Knuppe and Barbara Knuppe (incorporated by reference to Exhibit 10.1 of Form 10-Q filed on May 5, 2017).
2015 Incentive Award Plan (incorporated by reference to the Definitive Proxy Statement on Schedule 14A filed on April 14, 2015)
Registration Rights Agreement, dated September 21, 2015, among Extra Space Storage LP, Extra Space Storage Inc., Citigroup Global Markets Inc. and Wells Fargo Securities, LLC, as representatives of the initial purchasers (incorporated by reference to Exhibit 10.1 of Form 8-K filed on September 21, 2015).
Credit Agreement, dated as of October 14, 2016, by and among Extra Space Storage Inc., Extra Space Storage LP, U.S. Bank National Association, as administrative agent, certain other financial institutions acting as syndication agents, documentation agents, senior management agents and lead arrangers and book runners, and certain lenders party thereto (incorporated by reference to Exhibit 10.1 of Form 8-K filed on October 17, 2016).
2004 Long-Term Compensation Incentive Plan as amended and restated effective March 25, 2008 (incorporated by reference to the Definitive Proxy Statement on Schedule 14A filed on April 14, 2008)
Form of 2004 Long Term Incentive Compensation Plan Option Award Agreement for Employees with employment agreements. (incorporated by reference to Exhibit 10.11 of Form 10-K filed on February 26, 2010)
Form of 2004 Long Term Incentive Compensation Plan Option Award Agreement for employees without employment agreements. (incorporated by reference to Exhibit 10.12 of Form 10-K filed on February 26, 2010)
Form of 2004 Non-Employee Directors Share Plan Option Award Agreement for Directors. (incorporated by reference to Exhibit 10.13 of Form 10-K filed on February 26, 2010)
2004 Long Term Incentive Compensation Plan Restricted Stock Award Agreement (incorporated by reference to Exhibit 10.2 of Form 10-Q filed on November 7, 2007).
First Amendment to Extra Space Storage Inc. 2004 Non-Employee Directors’ Share Plan (incorporated by reference to Exhibit 10.4 of Form 10-Q filed on November 7, 2007).
Extra Space Storage 2004 Non-Employee Directors’ Share Plan (incorporated by reference to Exhibit 10.22 of Form 10-K/A filed on March 20, 2007).
Note Purchase Agreement, dated as of June 29, 2017, by and among Extra Space Storage Inc., Extra Space Storage LP and the purchasers named therein (incorporated by reference to Exhibit 10.1 of Form 8-K filed on June 30, 2017).


Exhibit
Number
Description
Subsidiaries of the Company(2)
Consent of Ernst & Young LLP(2)
Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.(2)
Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.(2)
Certifications of the Chief Executive Officer and Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.(2)X
101The following financial information from Registrant’s Annual Report on Form 10-K for the period ended December 31, 2014,2023, formatted in Extensible Business Reporting Language (XBRL): (i) Consolidated Balance Sheets as of December 31, 20142023 and 2013;2022; (ii) Consolidated Statements of Operations for the years ended December 31, 2014, 20132023, 2022 and 2012;2021; (iii) Consolidated Statements of Comprehensive Income for the years ended December 31, 2014, 20132023, 2022 and 2012;2021; (iv) Consolidated Statements of Stockholders’ Equity for the years ended December 31, 2014, 20132023, 2022 and 2012;2021; (v) Consolidated Statements of Cash Flows for the years ended December 31, 2014, 20132023, 2022 and 2012;2021; and (vi) Notes to Consolidated Financial Statements(2)Statements.X
104Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101).X


*     Management compensatory plan or arrangement
(1)Incorporated by reference to Registration Statement on
Item 16.     Form S-11 (File No. 333-115436 dated August 11, 2004).10-K Summary
(2)Filed herewith.
(3)See Item 15(a)(2) above.

None.

82


SIGNATURES
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.
EXTRA SPACE STORAGE INC.
Date: March 1, 2018February 29, 2024By:By:/s/ JOSEPH D. MARGOLIS
Joseph D. Margolis
Chief Executive Officer
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.

Date: February 29, 2024By:
Date: March 1, 2018By:/s/ JOSEPH D. MARGOLIS
Joseph D. Margolis
Chief Executive Officer
(Principal Executive Officer)
Date: March 1, 2018February 29, 2024By:By:/s/ P. SCOTT STUBBS
P. Scott Stubbs
Executive Vice President and Chief Financial Officer
(Principal Financial Officer)
Date: March 1, 2018February 29, 2024By:By:/s/ GRACE KUNDE
Grace Kunde
Senior Vice President, Accounting and Finance
(Principal Accounting Officer)
Date: March 1, 2018February 29, 2024By:By:/s/ KENNETH M. WOOLLEY
Kenneth M. Woolley
Executive Chairman of the Board
Date: February 29, 2024By:/s/ MARK BARBERIO
Mark Barberio
Director
Date: March 1, 2018February 29, 2024By:By:/s/ JENNIFER BLOUIN
Jennifer Blouin
Director
Date: February 29, 2024By:/s/ JOSEPH J. BONNER
Joseph J. Bonner
Director
Date: February 29, 2024By:/s/ GARY CRITTENDEN
Gary Crittenden
Director
Date: February 29, 2024By:/s/ SUSAN HARNETT
Susan Harnett
Director
Date: February 29, 2024By:/s/ SPENCER F. KIRK
Spencer F. Kirk
Director
Date: February 29, 2024By:/s/ DIANE OLMSTEAD
Date: March 1, 2018By:/s/ DENNIS LETHAM
Dennis LethamDiane Olmstead
Director
Date: March 1, 2018February 29, 2024By:By:/s/ DIANE OLMSTEAD
Diane Olmstead
Director
Date: March 1, 2018By:/s/ ROGER B. PORTER
Roger B. Porter
Director
83


Date: February 29, 2024By:/s/ JULIA VANDER PLOEG
Date: March 1, 2018By:/s/ K. FRED SKOUSEN
Julia Vander Ploeg
Director
Date: February 29, 2024By:/s/ JOSEPH V. SAFFIRE
Joseph V. Saffire
Director
Date: February 29, 2024By:/s/ JEFFERSON S. SHREVE
K. Fred Skousen
Jefferson S. Shreve
Director


84