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NSA US Equity

National Storage Affiliates TrustReal Estate · Real Estate Investment Trusts · CIK 1618563 · FY ends Dec 31
$43.41
+0.00 (+0.00%)
USD · as of 2026-07-22 · marketstack
stale quote — last trade 2026-07-22

NSA · 10-K · period ended 2020-12-31

← all NSA documents
filed 2021-02-26 · EDGAR original ↗

Our rendering of the filing — original pagination and typography are not reproduced, and tables are reduced to their short label cells (the figures live on FA). Nothing is summarized: every line below is the filing's own text.

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Item 1A. Risk Factors

An investment in our common shares involves a high degree of risk. Before making an investment decision, you should carefully consider the following risk factors, together with the other information contained in this Annual Report on Form 10-K. If any of the risks discussed in this Annual Report on Form 10-K occurs, our business, financial condition, liquidity and results of operations could be materially and adversely affected.

Risks Related to our Business

Adverse economic or other conditions in the markets in which we do business and more broadly associated with the real estate industry could negatively affect our occupancy levels and rental rates and therefore our operating results and the value of our self storage properties.

Our operating results are dependent upon our ability to achieve optimal occupancy levels and rental rates at our self storage properties. Adverse economic or other conditions in the markets in which we do business, particularly in our markets in California, Texas, Florida, Oregon, Georgia, Arizona and North Carolina, which accounted for approximately 20%, 13%, 11%, 10%, 6%, 6% and 5%, respectively, of our total rental and other property-related revenues for the year ended December 31, 2020, may lower our occupancy levels and limit our ability to maintain or increase rents or require us to offer rental discounts. No single customer represented a significant concentration of our 2020 revenues. However, our property portfolio, consists solely of self storage properties and is therefore subject to risks inherent in investments in a single industry. The following adverse developments, among others, in the markets in which we do business may adversely affect the operating performance of our properties:

•business layoffs or downsizing, industry slowdowns, relocation of businesses and changing demographics;

•periods of economic slowdown or recession, declining demand for self storage generally or in a particular area or the public perception that any of these events may occur;

•local or regional real estate market conditions, such as competing properties or products, the oversupply of self storage, or vacancies or changes in self storage space market rents;

•perceptions by prospective tenants of the safety, convenience and attractiveness of our properties and the neighborhoods in which they are located; and

•other events affecting or shifting consumer discretionary spending.

Any of the above events may reduce our rental revenues, impair our operating results, and reduce our ability to satisfy our debt service obligations and make cash distributions to our shareholders, and the effect of the foregoing may be greater than it would be were our investments not limited to a single industry.

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We may not be successful in identifying and consummating suitable acquisitions, adding additional suitable new PROs, or integrating and operating such acquisitions, including integrating them into our financial and operational reporting infrastructure and internal control framework in a timely manner, 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 properties or other assets that meet our acquisition criteria or in consummating acquisitions on satisfactory terms or at all. Failure to identify or consummate acquisitions will slow our growth, which could in turn adversely affect our share price.

For the potential acquisitions in our captive pipeline, we have not entered into negotiations with the respective owners of these properties and there can be no assurance as to whether we will acquire any of these properties or the actual timing of any such acquisitions. Each captive pipeline property is subject to additional due diligence and the determination by us to pursue the acquisition of the property. In addition, with respect to the captive pipeline properties in which our PROs have a non-controlling ownership interest or no ownership interest, the current owner of each property is not required to offer such property to us and there can be no assurance that we will acquire these properties.

Our ability to acquire properties on favorable terms and successfully integrate and operate them, including integrating them into our financial and operational reporting infrastructure in a timely manner, may be constrained by the following significant risks:

•we face competition from national, regional and local owners, operators and developers of self storage properties, which may result in higher property acquisition prices and reduced yields;

•we may not be able to achieve satisfactory completion of due diligence investigations and other customary closing conditions;

•we may fail to finance an acquisition on favorable terms or at all;

•we may spend more time and incur more costs than budgeted to make necessary improvements or renovations to, and to integrate and operate, acquired properties; and

•we may acquire properties 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, tax liabilities, claims by persons dealing with the former owners of the properties and claims for indemnification by general partners, trustees, officers and others indemnified by the former owners of the properties.

The contributors of properties may make limited representations and warranties to us about the properties and may agree to indemnify us up to a specified amount for a certain period of time following the closing for breaches of those representations and warranties. However, any resulting liabilities identified may not fall within the scope or time frame covered by the indemnification, and we may be required to bear those liabilities, which may materially and adversely affect our operating results, financial condition and business.

We face competition for tenants.

We compete with many other entities engaged in real estate investment activities for tenants, including national, regional and local owners, operators and developers of self storage properties. Actions by our competitors may decrease or prevent increases in the occupancy and rental rates, while increasing the operating expenses of our properties.

Increases in taxes and regulatory compliance costs, including as a result of changes in law or property reassessments, may reduce our income and adversely impact our cash flows.

Increases in income or other taxes generally are not passed through to tenants under leases and may reduce our net income, funds from operations ("FFO"), cash flows, financial condition, ability to pay or refinance our debt obligations, ability to make cash distributions to shareholders, and the trading price of our securities.

In addition, the value of our properties may be reassessed for property tax purposes by taxing authorities including as a result of our acquisition activities. For example, our property taxes could increase due to changes in tax rates or removal of limitations on the amount by which our property taxes or property reassessments may

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increase. For example, in November 2020, there was an initiative in California, which did not pass, to remove certain limits on annual real estate tax increases of assessed value of real property. To the extent a similar future initiative is successful, it would increase the assessed value and/or tax rates applicable to self storage properties in California. We currently have 83 consolidated properties and 12 unconsolidated properties in California. Accordingly, the amount of property taxes we pay in the future may increase substantially from what we have paid in the past or from what we expected in connection with our underwriting activities, which could adversely impact our operating results, cash flow, and our ability to pay any expected dividends to our shareholders.

Similarly, in response to facing severe budgetary problems, many states and jurisdictions are considering or implementing changes in laws such as increasing sales taxes, increasing the potential liability for environmental conditions existing on properties, increasing the restrictions on discharges or other conditions, or mandating paid family leave for employees, which may result in significant unanticipated expenditures, which could result in similar adverse effects.

Our storage leases are relatively short-term in nature, which exposes us to the risk that we may have to release our units and we may be unable to do so on attractive terms, on a timely basis or at all.

Our storage leases are relatively short-term in nature, typically month-to-month, which exposes us to the risk that we may have to re-lease our units frequently and we may be unable to do so on attractive terms, on a timely basis or at all. Because these leases generally permit the tenant to leave at the end of the month without penalty, our revenues and operating results may be impacted by declines in market rental rates more quickly than if our leases were for longer terms. In addition, any delay in re-leasing units as vacancies arise would reduce our revenues and harm our operating results.

Security breaches through cyber-attacks, cyber-intrusions, or other methods could disrupt our information technology networks and related systems.

We and our PROs are increasingly dependent upon automated information technology processes and Internet commerce, and many of our and their tenants come from the telephone or over the Internet. Moreover, the nature of our and our PROs' business involves the receipt and retention of certain personal information about such tenants. In many cases, we and our PROs also rely significantly on third-party vendors to retain data, process transactions and provide other systems services. Our networks and operations could be disrupted, and sensitive data could be compromised, by physical or electronic security breaches, targeted against us, our PROs, our vendors or other organizations, including financial markets or institutions, including by way of or through cyber-attacks or cyber-intrusions over the Internet, malware, computer viruses, attachments to e-mails, phishing, employee theft or misuse, or inadequate security controls. Although we make efforts to protect the security and integrity of our networks and systems, there can be no assurance that these efforts and measures will be effective or that attempted security breaches or disruptions would not be successful, as such attacks and breaches may be difficult to detect (or not detected at all) and are becoming more sophisticated. In such event, we may experience business interruptions; data loss, ransom, misappropriation, or corruption; theft or misuse of confidential or proprietary information; or litigation and investigation by tenants, governmental or regulatory agencies, or other third parties, which could result in the payment of fines, penalties and other damages. Such events could also have other adverse impacts on us, including breaches of debt covenants, other contractual or REIT compliance obligations, or late or misstated financial reports, and significant diversion of management attention and resources. As a result, such events could have a material adverse effect on our financial condition, results of operations and cash flows and harm our business reputation or have such effects on our PROs.

Costs associated with complying with the ADA may result in unanticipated expenses.

Under the ADA and other federal, state and local laws, we are required to meet certain requirements related to access and use by disabled persons. Noncompliance with the ADA could result in the imposition of fines or an award of damages to private litigants and also could result in an order to correct any non-complying feature, which could result in substantial capital expenditures. If one or more of our properties or website is not in compliance with the ADA or similar laws, then we would be required to incur additional costs to bring the property or website into compliance. If we incur such costs and they are substantial, our financial condition, results of operations, cash flow, per share trading price of our common shares and our ability to satisfy our debt service obligations and to make cash distributions to our shareholders could be adversely affected.

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Environmental compliance costs and liabilities associated with operating our properties may affect our results of operations.

Under various U.S. federal, state and local environmental laws, ordinances and regulations, owners and operators of real estate may be liable for the costs of investigating and remediating certain hazardous substances or other regulated materials on or in such property. No assurances can be given that existing environmental studies with respect to any of our properties reveal all environmental liabilities, that any prior owner or operator of our properties did not create any material environmental condition not known to us, or that a material environmental condition does not otherwise exist as to any one or more of our properties. There also exists the risk that material environmental conditions, liabilities or compliance concerns may have arisen after the review was completed or may arise in the future. Finally, future laws, ordinances or regulations and future interpretations of existing laws, ordinances or regulations may impose additional material environmental liability.

We and certain of our PROs have tenant insurance- and/or tenant protection plan-related arrangements that are in some cases subject to state-specific governmental regulation, which may adversely affect our results.

We and certain of our PROs have tenant insurance- and/or tenant protection plan-related arrangements with regulated insurance companies and our tenants. Some of our PROs earn access fees in connection with these arrangements. We receive a portion of the fees from these PROs. The tenant insurance and tenant protection plan businesses, including the payments associated with these arrangements, are in some cases subject to state-specific governmental regulation. State 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 industry participants. Although these arrangements are managed by our property management platform and/or certain of our PROs who have developed marketing programs and management procedures to navigate the regulatory environment, as a result of regulatory or private action in any jurisdiction in which we operate, we may be temporarily or permanently suspended from continuing some or all of our tenant insurance- and/or tenant protection plan-related activities, or otherwise fined or penalized or suffer an adverse judgment, which could adversely affect our business and results of operations.

Privacy concerns could result in regulatory changes that may harm our business.

Personal privacy has become a significant issue in the jurisdictions in which we operate. Many jurisdictions in which we operate have imposed or in the future may impose restrictions and requirements on the use of personal information by those collecting such information. For example, the California Consumer Privacy Act of 2018, which became effective as of January 1, 2020, together with the recently enacted California Privacy Rights Act, provides consumers with expansive rights and control over personal information obtained by or shared with certain covered businesses. Changes to law or regulations or the passage of new laws affecting privacy, if applicable to our business, could impose additional costs and liability on us and could limit our use and disclosure of such information.

Uninsured losses or losses in excess of our insurance coverage could adversely affect our financial condition, operating results and cash flow.

We maintain comprehensive liability, fire, flood, earthquake, wind (as deemed necessary or as required by our lenders), extended coverage and rental loss insurance with respect to our properties. Certain types of losses, however, may be either uninsurable or not economically insurable either in total or in part (due to location or otherwise), such as losses due to earthquakes, hurricanes, tornadoes, floods, riots, acts of war or terrorism. Should an uninsured loss occur, we could lose both our investment in and anticipated profits and cash flow from a property. 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. We currently self-insure a portion of our commercial insurance deductible risk through our captive insurance company. To the extent that our captive insurance company is unable to bear that risk, we may be required to fund additional capital to our captive insurance company or we may be required to bear that loss. As a result, our operating results may be adversely affected.

Illiquidity of real estate investments could significantly impede our ability to respond to adverse changes in the performance of our properties.

Because real estate investments are relatively illiquid and we have agreed and may in the future agree to certain transfer restrictions with respect to our properties, our ability to promptly sell one or more properties in our portfolio

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in response to changing economic, financial and investment conditions is limited. The real estate market is affected by many factors, such as general economic conditions, availability of financing, interest rates and other factors, including supply and demand, that are beyond our control. We cannot predict whether we will be able to sell any property for the price or on the terms set by us or whether any price or other terms offered by a prospective purchaser would be acceptable to us. We also cannot predict the length of time needed to find a willing purchaser and to close the sale of a property. In addition, we may be required to expend funds to correct defects or to make improvements before a property can be sold. We cannot assure you that we will have funds available to correct those defects or to make those improvements.

Our business could be harmed if key personnel terminate their employment with us.

Our success depends, to a significant extent, on the continued services of Arlen D. Nordhagen, Tamara D. Fischer, David Cramer and Brandon S. Togashi and the other members of our senior management team. We have entered into employment agreements with Mr. Nordhagen, Ms. Fischer, Mr. Cramer and Mr. Togashi and these employment agreements provide for an initial one-year term of employment and automatic one-year extensions thereafter unless either party provides at least 90 days' notice of non-renewal. Notwithstanding these agreements, there can be no assurance that any of them will remain employed by us. The loss of services of one or more members of our senior management team could harm our business and our prospects.

We invest in strategic joint ventures that subject us to additional risks.

Some of our investments are, and in the future may be, structured as strategic joint ventures. Part of our strategy is to opportunistically partner with institutional funds and other institutional investors to acquire attractive portfolios through a promoted return structure. These arrangements are driven by the magnitude of capital required to complete the acquisitions and maintain the acquired portfolios. Such arrangements involve risks not present where a third party is not involved, including the possibility that partners or co-venturers might become bankrupt or otherwise fail to fund their share of required capital contributions. Additionally, partners or co-venturers might at any time have economic or other business interests or goals different from us and or in competition with us.

Joint ventures generally provide for a reduced level of control over an acquired project because governance rights are shared with others. Accordingly, certain major decisions relating to joint ventures, including decisions relating to, among other things, the approval of annual budgets, sales and acquisitions of properties, financings, and certain actions relating to bankruptcy, are often made by a majority vote of the investors or by separate agreements that are reached with respect to individual decisions. In addition, such decisions may be subject to the risk that the partners or co-venturers may make business, financial or management decisions with which we do not agree or take risks or otherwise act in a manner that does not serve our best interests. Because we may not have the ability to exercise control over such operations, we may not be able to realize some or all of the benefits that we believe will be created from our involvement. At times, we and our partners or co-venturers may also each have the right to trigger a buy-sell arrangement, which could cause us to sell our interest, or acquire our partners' or co-venturers' interest, at a time when we otherwise would not have initiated such a transaction. If any of the foregoing were to occur, our business, financial condition and results of operations could suffer as a result.

The current outbreak of COVID-19 or the future outbreak of any other highly infectious or contagious diseases, could adversely impact or cause significant disruption to our financial condition, results of operations and cash flows.

We face various risks related to pandemics, epidemics and other outbreaks of highly infectious or contagious diseases, including the current global outbreak of COVID-19. As a result of the significant adverse impact of the COVID-19 pandemic to economic activity across the globe, the COVID-19 pandemic, and any future outbreak of another disease, could adversely impact our financial condition, results of operations and cash flows due to, among other factors, the following:

•our tenants may be unable to meet their obligations to us in full, or at all, or may seek modifications of such obligations, which could increase uncollectible receivables and cause subsequent reductions in revenue;

•reduced economic activity could result in a prolonged recession, which could negatively impact consumer discretionary spending, a reduction in move-ins at our stores or increase uncollectible receivables;

•governmental or health and safety requirements or recommendations could compel a complete or partial closure of, or other operational issues at, our properties or prohibit us from charging late fees, conducting auctions and increasing prices;

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•a general decline in business activity and demand for property acquisitions, expansions, and the addition of new PROs and/or joint venture partners;

•interrupted availability of, including the potential for a negative health impact on, our or our PRO's personnel, could result in a deterioration in our ability to ensure business continuity;

•the inability of other third-party vendors we rely on to conduct our business to operate effectively and continue to support our business and operations;

•difficulty accessing debt and equity capital on attractive terms, or at all, and severe disruption or instability in the financial markets or a deterioration in credit and financing conditions may affect our access to capital necessary to fund our business; and

•the financial impact of the COVID-19 pandemic, including potential decreases in cash from operations resulting therefrom, could negatively impact our future compliance with the financial covenants in our debt agreements and result in a default and potential acceleration of indebtedness, which could negatively impact our ability to make additional borrowings under our revolving credit facility and pay dividends.

The factors described above, as well as additional factors that we may not currently be aware of, could materially negatively impact our ability to collect rent and could lead to termination of leases by tenants, tenant defaults, tenant bankruptcies, decreases in demand for storage space at our properties, difficulties in accessing capital, impairment of our tangible or intangible assets and other impacts that could materially and adversely affect our financial condition, results of operations and cash flows. In addition, to the extent the COVID-19 pandemic or a future outbreak of another disease adversely affects our business and financial results it may heighten other risks described in the Risk Factors section in the Annual Report.

Risks Related to Our Structure and Our Relationships with Our PROs

Some of our PROs have limited experience operating under our capital structure, and we may not be able to achieve the desired outcomes that the structure is intended to produce.

Some of our PROs have limited experience operating under our capital structure. As a means of incentivizing our PROs to drive operating performance and support the sustainability of the operating cash flow from the properties they manage on our behalf, we issued each PRO subordinated performance units aimed at aligning the interests of our PROs with our interests and those of our shareholders. The subordinated performance units are entitled to distributions exclusively tied to the performance of each PRO's managed portfolios but only after minimum performance thresholds are satisfied. Our issuance of such units, however, may have been and could be based on inaccurate valuations and thus misallocated, which would limit or eliminate the effectiveness of our intended incentive-based program.

We are restricted in making certain property sales on account of agreements with our PROs that may require us to keep certain properties that we would otherwise sell.

The partnership unit designations related to our subordinated performance units provide that, until March 31, 2023, our operating partnership may not sell, dispose or otherwise transfer any property that is a part of the applicable self storage property portfolio relating to a series of subordinated performance units without the consent of the partners (including us) holding at least 50% of the then outstanding OP units and the consent of partners holding at least 50% of the then outstanding series of subordinated performance units that relate to the applicable property, except for sales, dispositions or other transfers of a property to wholly owned subsidiaries of our operating partnership. This restriction may require us to keep certain properties that we would otherwise sell, which could have an adverse effect on our results of operations, financial condition, cash flow and ability to execute our business plan. In addition, we may enter into agreements with future PROs that contain the same or similar restrictions or that impose such restrictions for different periods.

Our ability to terminate our facilities portfolio management agreements ("FPMAs") and asset management agreements ("AMAs") with a PRO is limited, which may adversely affect our ability to execute our business plan.

We may elect to terminate our FPMAs and AMAs with a PRO and transfer property management responsibilities over the properties managed by such PRO to us (or our designee), (i) upon certain defaults by a PRO as set forth in these agreements, or (ii) if the PRO's properties, on a portfolio basis, fail to meet certain pre-determined performance thresholds for more than two consecutive calendar years or if the operating cash flow generated by the properties of the PRO for any calendar year falls below a level that will enable us to fund minimum

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levels of distributions, debt service payments attributable to the properties, and fund the properties' allocable operating expenses. Consequently, to the extent a PRO complies with these covenants, standards, and minimum requirements, we may not be able to terminate the applicable FPMAs and AMAs and transfer property management responsibilities over such properties to us (or our designee) even if our board believes that such PRO is not properly executing our business plan and/or is failing to operate its properties to their full potential. Moreover, transferring the management responsibilities over the properties managed by a PRO may be costly or difficult to implement or may be delayed, even if we are able to and believe that such a change in portfolio and property management would be beneficial to us and our shareholders.

We may less vigorously pursue enforcement of terms of agreements entered into with our PROs because of conflicts of interest with our PROs.

Our PROs are entities that have contributed self storage properties to us in exchange for ownership interests in us. As part of each transaction, our PROs make limited representations to us regarding the entities, properties and other assets to be acquired by us in the contribution and generally agree to indemnify us for 12 months after the closing of the contribution for breaches of such representations. Such indemnification is limited, however, and we are not entitled to any other indemnification in connection with the contributions. In addition, following each contribution from a PRO, the day-to-day operations of each of the managed properties will be managed by the PRO who was the principal of the applicable property portfolios prior to the contribution. In addition, certain key persons of our PROs are members of our board or our PRO advisory committee. Consequently, we may choose not to enforce, or to enforce less vigorously, our rights under these agreements and any other agreements with our PROs due to our desire to maintain our ongoing relationship with our PROs, which could adversely affect our operating results and business.

We own self storage properties in some of the same geographic regions as our PROs and may compete for tenants with other properties managed by our PROs.

Pursuant to our FPMAs, each PRO has agreed that, without our consent, the PRO will not, and it will cause its affiliates (other than Blue Sky's sub-manager) not to, enter into any new arrangements for the management of additional self storage properties within any PRO's assigned territory. However, we have not and will not acquire all of the self storage properties of our PROs. We will therefore own self storage properties in some of the same geographic regions as our PROs, and, as a result, we and our PROs may compete for tenants. This competition may affect our ability to attract and retain tenants and may reduce the rental rates we are able to charge, which could adversely affect our operating results and business.

Our PROs may engage in other activities, diverting their attention from the management of our properties, which could adversely affect the execution of our business plan and our operating results.

Our PROs and their employees and personnel are in the business of managing self storage properties. We have agreed that our PROs may continue to manage properties not included in our portfolio, and our PROs are not obligated to dedicate any specific employees or personnel exclusively to the management of our properties. As a result, their time and efforts may be diverted from the management of our properties, which could adversely affect the execution of our business plan and our operating results.

When a PRO elects or is required to "retire" we may become exposed to new and additional costs and risks.

Under our FPMAs, after a two-year period following the initial contribution of their properties to us, a PRO may elect, or be required, to "retire" from the self storage business. Upon a retirement event, management of the properties will be transferred to us (or our designee) in exchange for OP units with a value equal to four times the average of the normalized annual EBITDA from the management contracts related to such PRO's managed portfolio over the immediately preceding 24-month period. As a result of this transfer, we may become exposed to new and additional costs and risks. Accordingly, the retirement of a PRO may adversely affect our financial condition and operating results. For example, in connection with our internalization of a retiring PRO, there can be no assurance that we will be able to retain such retiring PRO's employees, successfully hire new employees, or effectively integrate such employees and the retiring PRO's property management platform into our or another PRO's property management platform.

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Our contribution transactions were generally not negotiated on an arm's-length basis and may not be as favorable to us as if they had been negotiated with unaffiliated third parties.

We did not conduct arm's-length negotiations with certain of the parties involved regarding the terms of our contribution transactions, including the contribution agreements, FPMAs, sales commission agreements, AMAs and registration rights agreements. In the course of structuring such transactions, certain members of our senior management team and other contributors had the ability to influence the type and level of benefits that they received from us. Accordingly, the terms of such transactions may not solely reflect the best interests of us or our shareholders and may be overly favorable to the other party to such transactions and agreements.

Conflicts of interest could arise with respect to certain transactions between the holders of OP units and subordinated performance units, which include our PROs, on the one hand, and us and our shareholders, on the other.

Conflicts of interest could arise with respect to the interests of holders of OP units and subordinated performance units, on the one hand, which include members of our senior management team, PROs, and trustees and us and our shareholders, on the other. Certain business combinations, the sale, disposition or transfer of certain of our assets or the repayment of certain indebtedness that may be desirable to us and our shareholders could have adverse tax consequences to such unit holders. In addition, under Maryland law, our trustees and officers have duties to the Company in connection with their management of the Company, however, under Delaware law, as a general partner, we have fiduciary duties to our operating partnership and to the limited partners in connection with the management of our operating partnership. Our duties as a general partner may come into conflict with the duties of our trustees and officers to the Company and our shareholders and we are not required to resolve such conflicts in favor of either the Company or the limited partners in our operating partnership. Further, there can be no assurance that any procedural protections we implement to address these or other conflicts of interest will result in optimal outcomes for us and our shareholders.

The partnership agreement of our operating partnership contains provisions that may delay, defer or prevent a change in control.

The partnership agreement of our operating partnership provides that subordinated performance unit holders holding more than 50% of the voting power of the subordinated performance units must approve certain change of control transactions involving us unless, as a result of such transactions, the holders of subordinated performance units are offered a choice (1) to allow their subordinated performance units to remain outstanding without the terms thereof being materially and adversely changed or the subordinated performance units are converted into or exchanged for equity securities of the surviving entity having terms and conditions that are substantially similar to those of the subordinated performance units (it being understood that we may not be the surviving entity and that the parent of the surviving entity or the surviving entity may not be publicly traded) or (2) to receive for each subordinated performance unit an amount of cash, securities or other property payable to a holder of OP units had such holder exercised its right to exchange its subordinated performance units for OP units without taking into consideration a specified conversion penalty associated with such an exchange. In addition, in the case of any such change of control transactions in which we have not received the consent of OP unit holders holding more than 50% of the OP units (other than those held by us or our subsidiaries) and of subordinated performance unit holders holding more than 50% of the voting power of the subordinated performance units (other than those held by us or our subsidiaries), such transaction is required to be approved by a companywide vote of limited partners holding more than 50% of our outstanding OP units in which OP units (including for this purpose OP units held by us and our subsidiaries) are voted and subordinated performance units (not held by us and our subsidiaries) are voted on an applicable as converted basis and in which we will be deemed to vote the OP units held by us and our subsidiaries in proportion to the manner in which all of our outstanding common shares were voted at a shareholders meeting relating to such transaction. These approval rights could delay, deter, or prevent a transaction or a change in control that might involve a premium price for our common shares or otherwise be in the best interests of our shareholders.

Certain provisions of the Maryland General Corporation Law (the "MGCL") and of our bylaws and our declaration of trust could inhibit a change in our control and have an adverse impact on the price of our shares.

The MGCL, our bylaws and our declaration of trust contain provisions that may discourage, delay or make more difficult a change in our control. We are subject to the Maryland Business Combination Act. Our board has adopted a resolution exempting from the Maryland Business Combination Act any business combinations between us and (1) any other person, provided that the business combination is first approved by our board (including a

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majority of disinterested trustees), (2) Arlen D. Nordhagen and any of his affiliates and associates and (3) any person acting in concert with the foregoing. As a result, such persons may be able to enter into business combinations with us that may not be in the best interests of our shareholders without compliance by us with the moratorium supermajority vote requirements and other provisions of the statute. If this resolution is repealed or our board does not approve a business combination, the Maryland Business Combination Act may discourage third parties from trying to acquire control of us and increase the difficulty of consummating such an offer.

The Maryland Control Share Acquisition Act provides that holders of "control shares" of a Maryland real estate investment trust acquired in a "control share acquisition" have no voting rights with respect to such shares except to the extent approved by our shareholders by the affirmative vote of at least two-thirds of all the votes entitled to be cast on the matter, excluding votes entitled to be cast by the acquirer of control shares, our officers and our trustees who are also our employees. Our bylaws exempt from the Maryland Control Share Acquisition Act acquisitions of our shares by any person. If we amend our bylaws to repeal the exemption from the Maryland Control Share Acquisition Act, the Maryland Control Share Acquisition Act also may make it more difficult for a third party to obtain control of us and increase the difficulty of consummating such an offer.

We have also adopted other measures that may make it difficult for a third party to obtain control of us, including provisions of our declaration of trust and bylaws limiting the liability of our present and former trustees and officers to us and our shareholders for money damages to the maximum extent permitted under Maryland law, requiring us to indemnify our present and former trustees and officers for actions taken in their official capacities, permitting (subject to the rights of holders of any class or series of preferred shares) removal of a trustee, with or without cause, only by the affirmative vote of at least two-thirds of the votes entitled to be cast generally in the election of trustees, and authorizing our board (without shareholder approval) to classify or reclassify our shares in one or more classes or series, to cause the issuance of additional shares and to amend our declaration of trust to increase or decrease the number of shares that we have authority to issue. These provisions, as well as other provisions of our declaration of trust and bylaws, may delay, defer or prevent a transaction or a change in control that might otherwise be in the best interests of our shareholders.

Restrictions on ownership and transfer of our shares may restrict change of control or business combination opportunities in which our shareholders might receive a premium for their shares.

In order for us to qualify as a REIT for each taxable year, no more than 50% in value of our outstanding shares may be owned, directly or constructively, by five or fewer individuals during the last half of any calendar year, and at least 100 persons must beneficially own our shares during at least 335 days of a taxable year of 12 months, or during a proportionate portion of a shorter taxable year. "Individuals" for this purpose include natural persons, private foundations, some employee benefit plans and trusts, and some charitable trusts. To assist us in preserving our REIT qualification, among other purposes, our declaration of trust generally prohibits, among other limitations, any person from beneficially or constructively owning more than 9.8% in value or in number of shares, whichever is more restrictive, of our aggregate outstanding shares of all classes and series, the outstanding shares of any class or series of our preferred shares or our outstanding common shares. These ownership limits and the other restrictions on ownership and transfer of our shares contained in our declaration of trust could have the effect of discouraging a takeover or other transaction in which holders of our common shares might receive a premium for their shares over the then prevailing market price or which holders might believe to be otherwise in their best interests. Our board of trustees has established exemptions from these ownership limits which permits certain of our institutional investors to hold up to 20% of our common shares and up to 25% of our preferred shares.

Risks Related to Our Debt Financings

There are risks associated with our indebtedness.

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;

•to satisfy our debt obligations, we may be forced to dispose of one or more of our properties, possibly on disadvantageous terms;

•our debt level could place us at a competitive disadvantage compared to our competitors with less debt; and

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•we may violate our restrictive covenants or otherwise default on our obligations, which may entitled our creditors to accelerate our debt obligations, foreclose on our properties securing our debt, enforce our guarantees and/or trigger default on our other indebtedness.

Disruptions in the financial markets could affect our ability to obtain debt financing on reasonable terms or at all and have other adverse effects on us.

Uncertainty in the credit 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 or make distributions required to maintain our qualification as a REIT. A downturn in the credit markets may cause us to seek alternative sources of potentially less attractive financing, and may require us to adjust our business plans accordingly. In addition, these factors may make it more difficult for us to sell properties or may adversely affect the price we receive for properties that we do sell, as prospective buyers may experience increased costs of debt financing or difficulties in obtaining debt financing.

We depend on external sources of capital that are outside of our control, which could adversely affect our ability to acquire or develop properties, satisfy our debt obligations and/or make distributions to shareholders.

We depend on external sources of capital to acquire properties, to satisfy our debt obligations and to make distributions to our shareholders required to maintain our qualification as a REIT, and these sources of capital may not be available on favorable terms, or at all. Our access to external sources of capital depends on a number of factors, including the market's perception of our growth potential and our current and potential future earnings and our ability to continue to qualify as a REIT for U.S. federal income tax purposes. If we are unable to obtain external sources of capital, we may not be able to acquire properties when strategic opportunities exist, satisfy our debt obligations or make cash distributions to our shareholders that would permit us to qualify as a REIT or avoid paying tax on all of our net taxable income.

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 shareholders, and our decision to hedge against interest rate risk might not be effective.

As of December 31, 2020, we had approximately $1.9 billion of debt outstanding, of which approximately $174.0 million, or 9.1%, is subject to variable interest rates (excluding variable-rate debt subject to interest rate swaps). Although the credit markets have recently experienced historic lows in interest rates, if interest rates rise, the interest rates on variable-rate debt that we may incur in the future could be higher than current levels, which could increase our financing costs and decrease our cash flow and our ability to pay cash distributions to our shareholders.

Although we have historically sought, and may in the future seek, to manage our exposure to interest rate volatility by using interest rate hedging arrangements, these arrangements may not be effective. Developing an effective interest rate risk strategy is complex and no strategy can completely insulate us from risks associated with interest rate fluctuations. 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 shareholders.

The terms and covenants relating to our indebtedness could adversely impact our economic performance.

Our credit facility, term loan facilities and senior unsecured notes contain (and any new or amended facility we may enter into from time to time will likely contain) customary affirmative and negative covenants, including financial covenants that, among other things, cap our total leverage and our unsecured debt. In the event that we fail to satisfy our covenants, we would be in default under our debt agreements and may be required to repay such debt with capital from other sources. Under such circumstances, other sources of debt or equity capital may not be available to us, or may be available only on unattractive terms. Moreover, the presence of such covenants could cause us to operate our business with a view toward compliance with such covenants, which might not produce optimal returns for shareholders.

The expected discontinuance of the London interbank offered rate ("LIBOR") and transition to alternative reference rates may adversely impact our borrowings and interest rate hedging.

In July 2017, the U.K. Financial Conduct Authority, which regulates the LIBOR administrator, ICE Benchmark Administration Limited ("IBA") announced that it would cease to compel banks to participate in setting LIBOR as a benchmark by the end of 2021 and. that market participants cannot rely on LIBOR being published after 2021. On December 4, 2020, the IBA published a consultation on its intention to cease the publication of LIBOR for the most

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commonly used U.S. dollar LIBOR tenors after June 30, 2023 and for all other tenors after December 31, 2021. U.S. bank regulators are, however, encouraging banks to cease entering into new financial contracts that use LIBOR as a reference rate as soon as practicable and in any event by December 31, 2021. Accordingly, it appears likely that LIBOR will be discontinued or modified by December 31, 2021 or June 30, 2023, depending on the currency and tenor.

The Alternative Reference Rates Committee, a steering committee comprised of large U.S. financial institutions convened by the U.S. Federal Reserve Board and the New York Federal Reserve, has recommended the Secured Overnight Financing Rate ("SOFR") as a more robust reference rate alternative to U.S. dollar LIBOR. SOFR is observed and backward looking, which stands in contrast with LIBOR under the current methodology, which is an estimated forward-looking rate and relies, to some degree, on the expert judgment of submitting panel members. Given that SOFR is a secured rate backed by government securities, it will be a rate that does not take into account bank credit risk (as is the case with LIBOR). SOFR is therefore likely to be lower than U.S. dollar LIBOR. To approximate economic equivalence to LIBOR, SOFR can be compounded over a relevant term and a spread adjustment may be added. Market practices related to SOFR calculation conventions continue to develop and may vary, and inconsistent calculation conventions may develop among financial products.

Many of our debt agreements and our interest rate swap agreements are linked to LIBOR, including our credit facility and term loan facilities. Before the transition dates described above, we may need to amend such agreements that utilize LIBOR as a factor in determining the interest rate based on SOFR or another new standard that is established, if any. However, these efforts may not be successful in mitigating the legal, tax and financial risk from changing the reference rate in our legacy agreements. Furthermore, the transition away from LIBOR may adversely impact our ability to manage and hedge exposures to fluctuations in interest rates using derivative instruments. There is no guarantee that a transition from LIBOR to an alternative will not result in financial market disruptions, significant increases in benchmark rates, or borrowing costs to borrowers, any of which could have an adverse effect on our business, results of operations, financial condition, and the market price of our common shares.

Risks Related to Our Qualification as a REIT

Our failure to remain qualified as a REIT would subject us to U.S. federal income tax and applicable state and local taxes, which would reduce the amount of operating cash flow to our shareholders.

We have elected and we believe that we have qualified to be taxed as a REIT commencing with our taxable year ended December 31, 2015. We have not requested, and do not intend to request a ruling from the Internal Revenue Service ("IRS"), that we qualify as a REIT. Qualification as a REIT involves the application of highly technical and complex Code provisions and Treasury Regulations promulgated thereunder for which there are limited judicial and administrative interpretations. To qualify as a REIT, we must meet, on an ongoing basis through actual operating results, various tests regarding the nature and diversification of our assets and our income, the ownership of our outstanding shares and the amount of our distributions. Our ability to satisfy these asset tests depends upon our analysis of the characterization and fair market values of our assets, some of which are not susceptible to a precise determination, and for which we will not obtain independent appraisals. Moreover, new legislation, court decisions or administrative guidance may, in each case possibly with retroactive effect, make it more difficult or impossible for us to qualify as a REIT. Thus, while we believe that we have been organized and operated and we intend to operate so that we will continue to qualify as a REIT, given the highly complex nature of the rules governing REITs, the ongoing importance of factual determinations and the possibility of future changes in our circumstances, no assurance can be given that we have qualified or will so qualify for any particular year. These considerations also might restrict the types of assets that we can acquire or services that we can provide in the future.

We own and may in the future acquire direct or indirect interests in entities that have elected or will elect to be treated as REITs under the Code (each a "Subsidiary REIT"). 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 tests applicable to REITs, in which event we would fail to qualify as a REIT unless we qualify for certain statutory relief provisions.

If we fail to qualify as a REIT in any taxable year, and we do not qualify for certain statutory relief provisions, we would be required to pay U.S. federal income tax on our taxable income at regular corporate rates, and distributions to our shareholders would not be deductible by us in determining our taxable income. In such a case, we might need to borrow money, sell assets, or reduce or even cease making distributions in order to pay our taxes.

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Our payment of income tax would reduce significantly the amount of operating cash flow to our shareholders. Furthermore, if we fail to maintain our qualification as a REIT, we no longer would be required to make distributions to our shareholders. In addition, unless we were eligible for certain statutory relief provisions, we could not re-elect to be taxed as a REIT until the fifth calendar year following the year in which we failed to qualify.

Even if we qualify as a REIT, we may face other tax liabilities that reduce our cash flow.

Even if we qualify for taxation as a REIT, we may be subject to certain U.S. federal, state and local taxes on our income and assets, including taxes on any undistributed income, state or local income and property and transfer taxes, including real property transfer taxes. In addition, we could, in certain circumstances, be required to pay an excise or penalty tax (which could be significant in amount) in order to utilize one or more relief provisions under the Code to maintain our qualification as a REIT. Any of these taxes would decrease operating cash flow to our shareholders.

In order to qualify as a REIT, we must distribute to our shareholders each calendar year at least 90% of our net taxable income (excluding net capital gain). To the extent that we satisfy the 90% distribution requirement, but distribute less than 100% of our net taxable income (including net capital gain), we would be subject to U.S. federal corporate income tax on our undistributed net taxable income. In addition, we will incur a 4% non-deductible excise tax on the amount, if any, by which our distributions in any calendar year are less than a minimum amount specified under U.S. federal income tax laws. Although we intend to distribute our net taxable income to our shareholders in a manner that would avoid this 4% tax, there can be no assurance that we will be able to do so, due to timing differences between our actual receipt of cash and the inclusion of items in our income for U.S. federal income tax purposes, the effect of non-deductible capital expenditures, or the creation of reserves or required debt or amortization payments.

In addition, we will be subject to a 100% tax on any income from sales or other dispositions of property (other than property treated as foreclosure property under the Code) that is held as inventory or primarily for sale to customers in the ordinary course of a trade or business by a REIT, either directly or indirectly through certain pass-through subsidiaries (a "prohibited transaction"). In order to meet the REIT qualification requirements, or to avoid the imposition of the penalty tax on prohibited transactions, we may hold some of our assets or provide certain services to our tenants through one or more TRSs, which generally will be subject to U.S. federal, state and local corporate taxes. In addition, if a REIT lends money to a TRS, the TRS may be unable to deduct all or a portion of the interest paid to the REIT, which could increase the tax liability of the TRS. In addition, the Code imposes a 100% tax on certain transactions between a TRS and its parent REIT that are not conducted on an arm's length basis. We intend to structure transactions with any TRS on terms that we believe are arm's length to avoid incurring the 100% excise tax described above. There can be no assurances, however, that we will be able to avoid application of the 100% tax. Furthermore, if we acquire appreciated assets from a corporation that is or has been a subchapter C corporation in a transaction in which the adjusted tax basis of such assets in our hands is less than the fair market value of the assets, determined at the time we acquired such assets, and if we subsequently dispose of any such assets during the 5-year period following the acquisition of the assets from the C corporation, we will be subject to tax at the highest corporate tax rates on any gain from the disposition of such assets to the extent of the excess of the fair market value of the assets on the date that we acquired such assets over the basis of such assets on such date, which we refer to as built-in gains. Payment of these taxes generally could materially and adversely affect our income, cash flow, results of operations, financial condition, liquidity and prospects, and could adversely affect the value of our common shares and our ability to make distributions to our shareholders.

Complying with the REIT requirements may cause us to forgo and/or liquidate otherwise attractive investments, and in some situations, to maintain our REIT qualification, we may be forced to borrow funds during unfavorable market conditions.

To qualify as a REIT, we must ensure that at least 75% of our gross income for each taxable year, excluding certain amounts, is derived from certain real property-related sources, and at least 95% of our gross income for each taxable year, excluding certain amounts, is derived from certain real property-related sources and passive income such as dividends and interest. In addition, we must ensure that, at the end of each calendar quarter, at least 75% of the value of our total assets consists of cash, cash items, U.S. government securities and qualified real estate assets. The remainder of our investment in securities generally cannot include more than 10% of the outstanding voting securities of any one issuer (other than U.S. government securities, securities of corporations that are treated as TRSs and qualified real estate assets) or more than 10% of the total value of the outstanding securities of any one issuer (other than government securities, securities of corporations that are treated as TRSs and qualified real estate

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assets). In addition, in general, no more than 5% of the value of our assets can consist of the securities of any one issuer (other than U.S. government securities, securities of corporations that are treated as TRSs and qualified real estate assets), no more than 20% of the value of our total assets can be represented by securities of one or more TRSs and no more than 25% of the value of our assets can consist of debt instruments issued by publicly offered REITs that are not otherwise secured by real property. If we fail to comply with these asset requirements at the end of any calendar quarter, we must correct the failure within 30 days after the end of the calendar quarter or qualify for certain statutory relief provisions to avoid losing our REIT qualification and suffering adverse tax consequences.

To meet these tests, we may be required to take or forgo taking actions that we would otherwise consider advantageous. For instance, in order to satisfy the gross income or asset tests applicable to REITs under the Code, we may be required to forgo investments that we otherwise would make, and we may be required to liquidate from our portfolio otherwise attractive investments. In addition, we may be required to make distributions to shareholders at disadvantageous times or when we do not have funds readily available for distribution. As a result, we may need to borrow funds to meet the REIT distribution requirements even if the then prevailing market conditions are not favorable for these borrowings. Our access to third-party sources of capital depends on a number of factors, including the market's perception of our growth potential, our current debt levels, the per share trading price of our common shares, and our current and potential future earnings. We cannot assure you that we will have access to such capital on favorable terms at the desired times, or at all, which may cause us to curtail our investment activities and/or to dispose of assets at inopportune times. These actions could reduce our income and amounts available for distribution to our shareholders. Thus, compliance with the REIT requirements may hinder our investment performance.

If our operating partnership is treated as a corporation for U.S. federal income tax purposes, we will cease to qualify as a REIT.

We believe our operating partnership qualifies as a partnership for U.S. federal income tax purposes, and accordingly generally will not be subject to U.S. federal income tax on its income. Instead, each of its partners, including us, will be required to pay tax on its allocable share of our operating partnership's income. No assurance can be provided, however, that the IRS will not challenge our operating partnership's status as a partnership for U.S. federal income tax purposes, or that a court would not sustain such a challenge. If the IRS were successful in treating our operating partnership as a corporation for U.S. federal income tax purposes, we would fail to meet the gross income tests and certain of the asset tests applicable to REITs, we would cease to qualify as a REIT, and both we and our operating partnership would become subject to U.S. federal, state and local income tax. The payment by our operating partnership of income tax would reduce significantly the amount of cash available to our operating partnership to satisfy obligations to make principal and interest payments on its debt and to make distribution to its partners, including us.

Complying with REIT requirements may limit our ability to hedge effectively and may cause us to incur tax liabilities.

The REIT provisions of the Code may limit our ability to hedge our assets and operations. Under these provisions, any income that we generate from transactions intended to hedge our interest rate risk will be excluded from gross income for purposes of the REIT 75% and 95% gross income tests if (i) the instrument (a) hedges interest rate risk on liabilities used to carry or acquire real estate assets or (b) hedges an instrument described in clause (a) for a period following the extinguishment of the liability or the disposition of the asset that was previously hedged by the hedged instrument, and (ii) the relevant instrument is properly identified under applicable Treasury regulations. Income from hedging transactions that does not meet these requirements will generally constitute non-qualifying income for purposes of both the REIT 75% and 95% gross income tests. As a result of these rules, we may have to limit our use of hedging techniques that might otherwise be advantageous or implement those hedges through a TRS. This could increase the cost of our hedging activities because our TRS would be subject to tax on gains or expose us to greater risks associated with changes in interest rates than we would otherwise want to bear, and we generally would not benefit from losses in our TRS, although, subject to limitation, such losses may be carried forward to offset future taxable income of the TRS.

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The ability of our board of trustees to revoke our REIT election without shareholder approval may cause adverse consequences to our shareholders.

Our declaration of trust provides that the board of trustees may revoke or otherwise terminate our REIT election, without the approval of our shareholders, if the board determines that it is no longer in our best interest to attempt to, or continue to, qualify as a REIT. If we cease to qualify as a REIT, we would become subject to U.S. federal income tax on our net taxable income and we generally would no longer be required to distribute any of our net taxable income to our shareholders, which may have adverse consequences on our total return to our shareholders.

Legislative or regulatory tax changes related to REITs could materially and adversely affect our business.

At any time, the U.S. federal income tax laws or regulations governing REITs or the administrative interpretations of those laws or regulations may be changed, possibly with retroactive effect. We cannot predict if or when any new U.S. federal income tax law, regulation or administrative interpretation, or any amendment to any existing U.S. federal income tax law, regulation or administrative interpretation, will be adopted, promulgated or become effective or whether any such law, regulation or interpretation may take effect retroactively. We and our shareholders could be adversely affected by any such change in, or any new, U.S. federal income tax law, regulation or administrative interpretation.

Risks Related to Our Common Shares and Preferred Shares

Common shares and preferred shares eligible for future sale may have adverse effects on our share price.

Subject to applicable law and the rules of any stock exchange on which our shares may be listed or traded, our board, without common shareholder approval, may authorize us to issue additional authorized and unissued common shares and preferred shares on the terms and for the consideration it deems appropriate and may amend our declaration of trust to increase the total number of shares, or the number of shares of any class or series, that we are authorized to issue. In addition, our operating partnership may issue OP units, which are redeemable for cash or, at our option exchangeable on a one-for-one basis into common shares after an agreed period of time and certain other conditions, preferred units of limited partnership interest, which are redeemable for cash or, at our option exchangeable on a one-for-one basis into our 6.000% Series A cumulative redeemable preferred shares of beneficial interest ("Series A Preferred Shares") and subordinated performance units, which are only convertible into OP units beginning two years following the initial issuance of the applicable series and then (i) at the holder's election only upon the achievement of certain performance thresholds relating to the properties to which such subordinated performance units relate or (ii) at our election upon a retirement event of a PRO that holds such subordinated performance units or upon certain qualifying terminations.

Notwithstanding the two-year lock out period on conversions of subordinated performance units into OP units, if such subordinated performance units were convertible into OP units as of December 31, 2020, each subordinated performance unit would on average hypothetically convert into 1.23 OP units, or into an aggregate of approximately 16.4 million OP units. These amounts are based on historical financial information for the trailing twelve months ended December 31, 2020. The hypothetical conversion is calculated by dividing the average cash available for distribution, or CAD, per subordinated performance unit by 110% of the CAD per OP unit over the same period. We anticipate that as our CAD grows over time, the conversion ratio will also grow, including to levels that may exceed this amount. The actual number of OP units into which such subordinated performance units will become convertible may vary significantly and will depend upon the applicable conversion penalty and the actual CAD to the OP units and the actual CAD to the converted subordinated performance units in the one-year period ending prior to conversion. We have also granted registration rights to those persons who will be eligible to receive common shares issuable upon exchange of OP units and preferred shares issuable upon exchange preferred units issued in our contribution transactions.

We cannot predict the effect, if any, of future sales of our common or preferred shares or the availability of shares for future sales, on the market price of our common or preferred shares. The market price of our common shares may decline significantly when the restrictions on resale by certain of our shareholders lapse. Sales of substantial amounts of common or preferred shares or the perception that such sales could occur may adversely affect the prevailing market price for our common shares.

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We cannot assure our ability to pay dividends in the future.

Historically, we have paid quarterly common share dividends to our shareholders and quarterly distributions to our operating partnership unitholders, and we intend to continue to pay such dividends and distributions in amounts such that all or substantially all of our net taxable income in each year is distributed, which, along with other factors, should enable us to continue to qualify for the tax benefits accorded to a REIT under the Code. We have not established a minimum dividends payment level, and all future distributions will be made at the discretion of our board. Our ability to pay dividends will depend upon, among other factors:

•the operational and financial performance of our properties;

•capital expenditures with respect to existing and newly acquired properties;

•general and administrative expenses associated with our operation as a publicly-held REIT;

•maintenance of our REIT qualification;

•the amount of, and the interest rates on, our debt and the ability to refinance our debt;

•the absence of significant expenditures relating to environmental and other regulatory matters; and

•other risk factors described in this Annual Report on Form 10-K.

Certain of these matters are beyond our control and any significant difference between our expectations and actual results could have a material adverse effect on our cash flow and our ability to make distributions to shareholders.

Future offerings of debt or equity securities, which may rank senior to our common shares, may adversely affect the market price of our common shares.

If we decide to issue debt securities in the future, which would rank senior to our common shares, it is likely that they will be governed by an indenture or other instrument containing covenants restricting our operating flexibility. Additionally, any equity securities or convertible or exchangeable securities that we issue in the future may have rights, preferences and privileges more favorable than those of our common shares and may result in dilution to owners of such shares. We and, indirectly, our shareholders will bear the cost of issuing and servicing such securities. Because our decision to issue debt or equity securities in any future offering will depend on market conditions and other factors beyond our control, we cannot predict or estimate the amount, timing or nature of our future offerings. Thus, holders of our common shares will bear the risk of our future offerings reducing the market price of our shares and diluting the value of their common share holdings in us.

Item 1B. Unresolved Staff Comments

None.

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Item 2. Properties

As of December 31, 2020, we held ownership interests in and operated a geographically diversified portfolio of 821 self storage properties, located in 36 states and Puerto Rico, comprising approximately 52.0 million rentable square feet, configured in approximately 413,000 storage units. Of these properties, we consolidated 644 self storage properties that contain approximately 39.3 million rentable square feet and we held a 25% ownership interest in 177 unconsolidated real estate venture properties that contain approximately 12.7 million rentable square feet.

The following table sets forth summary information regarding our consolidated properties by state as of December 31, 2020.

Number of Number of Rentable % of Rentable Period-end

State/Territory Properties Units Square Feet Square Feet Occupancy

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The following table sets forth summary information regarding our unconsolidated real estate venture properties by state as of December 31, 2020.

Number of Number of Rentable % of Rentable Period-end

State Properties Units Square Feet Square Feet Occupancy

Our portfolio consists of self storage properties that are designed to offer customers convenient, affordable, and secure storage units. Generally, our properties are in highly visible locations clustered in states or markets with strong population and job growth and are specifically designed to accommodate residential and commercial tenants with features such as security systems, electronic gate entry, easy access, climate control, and pest control. Our units typically range from 25 square feet to 300 square feet, and some of our properties also offer outside storage for vehicles, boats, and equipment. We provide 24-hour access to many storage units through computer controlled access systems, as well as alarm and sprinkler systems on many of our individual storage units. Almost all of the storage units in our portfolio are leased on a month-to-month basis providing us the flexibility to increase rental rates over time as market conditions permit. Additional information on our consolidated self storage properties is contained in "Schedule III - Real Estate and Accumulated Depreciation" in this Annual Report on Form 10-K.

Item 3. Legal Proceedings

We are not currently subject to any legal proceedings that we consider to be material.

Item 4. Mine Safety Disclosures

Not applicable.

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PART II

Item 5. Market for the Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities

Market Information

Our common shares have been listed and traded on the NYSE under the symbol "NSA" since April 22, 2015. Prior to that time there was no public market for our common shares.

Holders

As of February 25, 2021, the Company had 79 record holders of its common shares. The 79 holders of record do not include the beneficial owners of common shares whose shares are held by a broker or bank. Such information was obtained from our transfer agent and registrar.

Dividends

Since our initial quarter as a publicly-traded REIT, we have made regular quarterly distributions to our shareholders. Holders of common shares are entitled to receive distributions when declared by our board of trustees out of any assets legally available for that purpose. In order to maintain our status 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 and excluding net capital gains to our shareholders annually in order to maintain our REIT qualification for U.S. federal income tax purposes.

Common share dividends are characterized for U.S. federal income tax purposes as ordinary income, capital gains, return of capital or a combination thereof. Each year we communicate to shareholders the tax characterization of the common share dividends paid during the preceding year. Our tax return for the year ended December 31, 2020 has not yet been filed and consequently, the taxability information presented for our dividends paid in 2020 is based upon management's estimate. The following table summarizes the taxability of our dividends per common share for the year ended December 31, 2020:

Year Ended

Equity Compensation Plan Information

Information about our equity compensation plans is incorporated by reference to Item 12 of Part III of this Annual Report on Form 10-K.

Unregistered Sales of Equity Securities

During the three months ended December 31, 2020, the Company, in its capacity as general partner of its operating partnership, caused the operating partnership to issue 187,735 common shares to satisfy redemption requests from certain limited partners.

As of February 25, 2021, other than those OP units held by the Company, 32,387,721 OP units were outstanding (including 724,540 outstanding Long-Term Incentive Plan Units ("LTIP units") and 1,924,918 outstanding OP units in certain consolidated subsidiaries of the operating partnership ("DownREIT OP units"), which are convertible into, or exchangeable for, OP units on a one-for-one basis, subject to certain conditions).

These issuances were exempt from registration under Section 4(a)(2) of the Securities Act of 1933, as amended.

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Performance Graph

The following chart compares the yearly cumulative total shareholder return for our common shares with the cumulative shareholder return of companies on (i) the S&P 500 Index, (ii) the Russell 2000 and (iii) the Nareit All Equity REIT Index as provided by Nareit for the period beginning December 31, 2015 and ending December 31, 2020.

Period Ending

The foregoing item assumes $100.00 invested on December 31, 2015, with dividends reinvested. The Performance Graph will not be deemed to be incorporated by reference into any filing by NSA under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, except to the extent that NSA specifically incorporates the same by reference.

Item 6. Selected Financial Data

None.

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Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations

You should read the following discussion and analysis of our financial condition and results of operations in conjunction with the financial statements and notes thereto included in Item 8. "Financial Statements and Supplementary Data" as well as Item 1. "Business," Item 1A. "Risk Factors," and Item 2. "Properties," respectively, in this Annual Report on Form 10-K.

Overview

National Storage Affiliates Trust is a fully integrated, self-administered and self-managed real estate investment trust organized in the state of Maryland on May 16, 2013. We have elected and we believe that we have qualified to be taxed as a REIT commencing with our taxable year ended December 31, 2015. We serve as the sole general partner of our operating partnership, a Delaware limited partnership formed on February 13, 2013 to conduct our business, which is focused on the ownership, operation, and acquisition of self storage properties located within the top 100 MSAs throughout the United States.

COVID-19

We continue to closely monitor the impact of the COVID-19 pandemic on all aspects of our business. The outbreak of COVID-19 in many countries, including the United States, has adversely impacted economic activity. As cases of COVID-19 have continued to increase, most states and municipalities have reacted by instituting, extending or reinstating quarantines, mandating business and school closures, requiring restrictions on travel, "shelter-in-place" and/or "stay-at-home" orders, and imposing restrictions on the types of businesses that may continue to operate. These containment measures generally do not apply to businesses, like ours, which are designated as "essential," but may apply to certain of our tenants, employees, vendors, lenders and joint venture partners.

As of the date of this report, our stores continue to operate and we are in compliance with federal, state and local COVID-19 guidelines and mandates. In response to the pandemic, we have increased the level and frequency of cleaning and sanitation of our self storage facilities and enacted recommended social distancing guidelines. Many of our stores feature online rental capabilities whereby a customer can complete the entire rental process online and receive an access code to the storage facility. For the remainder of our stores that do not yet benefit from the online rental feature, the combination of call center and email communication eliminates the need for any physical contact between customers and employees.

Due to the pandemic, we experienced a moderate slowdown in overall business activity during the second quarter of 2020. However, we observed sustained improvement in our property operating results during the third and fourth quarters of 2020. We continue to take proactive measures to maintain the strength of our business and manage the impact of COVID-19 on our operations and liquidity, including the following:

•We resumed rental rate increases for in-place tenants at the vast majority of our stores during the third quarter of 2020;

•We are continuing to diligently manage operating expenses, including store-level personnel costs, marketing and repairs and maintenance expenses. We also incurred lower corporate travel costs during the year ended December 31, 2020 compared to expectations at the beginning of the year;

•We continue to closely monitor our liquidity position. As of December 31, 2020, we had the capacity to borrow remaining revolving line of credit commitments of $320.3 million with less than $5 million of debt maturing through 2022;

•On October 22, 2020, we issued $150.0 million of 2.99% senior unsecured notes due August 5, 2030 and $100.0 million of 3.09% senior unsecured notes due August 5, 2032 in a private placement;

•We completed an underwritten public offering of 4,900,000 common shares of beneficial interest under forward sale agreements at a public offering price of $33.15 per share (the "forward offering"). On December 30, 2020 we settled a portion of the forward offering by physically delivering 1,850,510 common shares to the forward purchasers for net proceeds of approximately $60.0 million;

•We remain committed to acquiring properties at appropriate risk-adjusted returns. We believe our acquisition opportunities through our captive pipeline and relationship-based third-party deals sourced by our PROs will

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continue to be a differentiating factor for us to prudently deploy capital, including through the issuance of OP equity.

The above discussion is intended to provide shareholders with certain information regarding the impacts of the COVID-19 pandemic on our business and management’s efforts to respond to those impacts. We are unable to predict the impact of the COVID-19 pandemic on our business for the year ended December 31, 2021 and thereafter. We will continue to monitor its effects and will adjust our operations as necessary. As a result of the rapid development, fluidity and uncertainty surrounding this situation, we expect that such information will change, potentially significantly, going forward and may not be indicative of the actual impact of the COVID-19 pandemic on our financial condition, results of operations and cash flows for the year ended December 31, 2021 and future periods. See "Risk Factors" under Item 1A.

Our Structure

Our structure promotes operator accountability as subordinated performance units issued to our PROs in exchange for the contribution of their properties are entitled to distributions only after those properties satisfy minimum performance thresholds. In the event of a material reduction in operating cash flow, distributions on our subordinated performance units will be reduced before or disproportionately to distributions on our common shares held by our common shareholders. In addition, we expect our PROs will generally co-invest subordinated equity in the form of subordinated performance units in each acquisition that they source, and the value of these subordinated performance units will fluctuate with the performance of their managed portfolios. Therefore, our PROs are incentivized to select acquisitions that are expected to exceed minimum performance thresholds, thereby increasing the value of their subordinated equity stake. We expect that our shareholders will benefit from the higher levels of property performance that our PROs are incentivized to deliver.

Our PROs

We had ten PROs as of December 31, 2020: Northwest, Optivest, Guardian, Move It, Storage Solutions, Hide Away, Personal Mini, Southern, Moove In and Blue Sky. We seek to further expand our platform by continuing to recruit additional established self storage operators, while integrating our operations through the implementation of centralized initiatives, including management information systems, revenue enhancement, and cost optimization programs. Our national platform allows us to capture cost savings by eliminating redundancies and utilizing economies of scale across the property management platforms of our PROs while also providing greater access to lower-cost capital.

Our Property Management Platform

Through our property management platform, we direct, manage and control the day-to-day operations and affairs of certain consolidated properties and our unconsolidated real estate ventures under our iStorage and SecurCare brands. As of December 31, 2020, our property management platform managed and controlled 282 of our consolidated properties and 177 of our unconsolidated real estate venture properties.

We earn certain customary fees for managing and operating the properties in the unconsolidated real estate ventures and we facilitate tenant insurance and/or tenant warranty protection programs for tenants at these properties in exchange for half of all proceeds from such programs.

Our Consolidated Properties

We seek to own properties that are well located in high quality sub-markets with highly accessible street access and attractive supply and demand characteristics, providing our properties with strong and stable cash flows that are less sensitive to the fluctuations of the general economy. Many of these markets have multiple barriers to entry against increased supply, including zoning restrictions against new construction and new construction costs that we believe are higher than our properties' fair market value.

As of December 31, 2020, we owned a geographically diversified portfolio of 644 self storage properties, located in 33 states and Puerto Rico, comprising approximately 39.3 million rentable square feet, configured in approximately 309,000 storage units. Of these properties, 276 were acquired by us from our PROs, 367 were acquired by us from third-party sellers and one was acquired by us from the 2016 Joint Venture.

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Our Unconsolidated Real Estate Ventures

We seek to opportunistically partner with institutional funds and other institutional investors to acquire attractive portfolios utilizing a promoted return structure. We believe there is significant opportunity for continued external growth by partnering with institutional investors seeking to deploy capital in the self storage industry.

2018 Joint Venture

As of December 31, 2020, our 2018 Joint Venture, in which we have a 25% interest, owned and operated a portfolio of 103 properties containing approximately 7.8 million rentable square feet, configured in approximately 64,000 storage units and located across 17 states.

2016 Joint Venture

As of December 31, 2020, our 2016 Joint Venture, in which we have a 25% ownership interest, owned and operated a portfolio of 74 properties containing approximately 4.9 million rentable square feet, configured in approximately 40,000 storage units and located across 13 states.

Results of Operations

When reviewing our results of operations it is important to consider the timing of acquisition activity. We acquired 77 self storage properties during the year ended December 31, 2020 and 69 self storage properties during the year ended December 31, 2019. As a result of these and other factors, we do not believe that our historical results of operations discussed and analyzed below are comparable or necessarily indicative of our future results of operations or cash flows.

To help analyze the operating performance of our self storage properties, we also discuss and analyze operating results relating to our same store portfolio. Our same store portfolio is defined as those properties owned and operated since the first day of the earliest year presented, excluding any properties sold, expected to be sold or subject to significant changes such as expansions or casualty events which cause the portfolio's year-over-year operating results to no longer be comparable.

The following discussion and analysis of the results of our operations and financial condition for the year ended December 31, 2020 compared to the year ended December 31, 2019 should be read in conjunction with the accompanying consolidated financial statements included in Item 8. The discussion and analysis of the results of our operations and financial condition for the year ended December 31, 2019 compared to the year ended December 31, 2018, can be found in Part II, "Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations" of our Annual Report on Form 10-K for the year ended December 31, 2019, which was filed with the SEC on February 26, 2020.

Certain figures, such as interest rates and other percentages, included in this section have been rounded for ease of presentation. Percentage figures included in this section have not in all cases been calculated on the basis of such rounded figures but on the basis of such amounts prior to rounding. For this reason, percentage amounts in this section may vary slightly from those obtained by performing the same calculations using the figures in our consolidated financial statements or in the associated text. Certain other amounts that appear in this section may similarly not sum due to rounding.

Year Ended December 31, 2020 compared to the Year Ended December 31, 2019

Net income was $79.5 million for the year ended December 31, 2020, compared to $66.0 million for the year ended December 31, 2019, an increase of $13.5 million. The increase was primarily due to an increase in net operating income ("NOI") resulting from self storage properties acquired during 2019 and 2020 and a decrease in GAAP losses from the Company's unconsolidated real estate ventures partially offset by increases in depreciation and amortization, interest expense, non-operating expense, acquisition costs and a decrease in gains from the sale of self storage properties. For a description of NOI, see "Non-GAAP Financial measures – NOI".

Overview

As of December 31, 2020, our same store portfolio consisted of 500 self storage properties. See "---Results of Operations" above for the definition of our same store portfolio. The following table illustrates the changes in rental revenue, other property-related revenue, management fees and other revenue, property operating expenses, and other

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expenses for the year ended December 31, 2020 compared to the year ended December 31, 2019 (dollars in thousands):

Year Ended December 31,

Rental revenue

Other property-related revenue

Property operating expenses

Net operating income

Other (expense) income

Gain on sale of self storage properties — 2,814 (2,814)

Net income attributable to noncontrolling interests (30,869) (62,030) 31,161

Net income attributable to National Storage Affiliates Trust 48,609 3,983 44,626

Total Revenue

Our total revenue increased by $44.3 million, or 11.4%, for the year ended December 31, 2020, as compared to the year ended December 31, 2019. This increase was primarily attributable to incremental revenue from 77 self storage properties acquired during the year ended December 31, 2020, increases in management fees and other revenue from our unconsolidated real estate ventures and an increase in total portfolio average occupancy from 88.4% for the year ended December 31, 2019 to 89.3% for the year ended December 31, 2020. Average occupancy

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is calculated based on the average of the month-end occupancy immediately preceding the period presented and the month-end occupancies included in the respective period presented.

Rental Revenue

Rental revenue increased by $39.8 million, or 11.2%, for the year ended December 31, 2020, as compared to the year ended December 31, 2019. The increase in rental revenue was due to a $35.0 million increase in non-same store rental revenue which was primarily attributable to incremental rental revenue of $20.4 million from 77 self storage properties acquired during 2020, and $15.3 million from 69 self storage properties acquired during 2019. Same store portfolio rental revenues increased $4.8 million, or 1.5%, due to a 0.2% increase, from $12.12 to $12.15, in annualized same store rental revenue (including fees and net of any discounts and uncollectible customer amounts) divided by average occupied square feet ("average annualized rental revenue per occupied square foot"), driven primarily by increased contractual lease rates for in-place tenants and an increase in average occupancy from 88.6% for the year ended December 31, 2019 to 89.6% for the year ended December 31, 2020.

Other Property-Related Revenue

Other property-related revenue represents ancillary income from our self storage properties, such as tenant insurance-related access fees and sales of storage supplies. Other property-related revenue increased by $2.2 million, or 18.1%, for the year ended December 31, 2020, as compared to the year ended December 31, 2019. This increase primarily resulted from a $1.4 million increase in non-same store other property-related revenue which was primarily attributable to incremental other property-related revenue of $0.9 million from 77 self storage properties acquired during 2020, and $0.6 million from 69 self storage properties acquired during 2019.

Management Fees and Other Revenue

Management fees and other revenue, which are primarily related to managing and operating the unconsolidated real estate ventures, were $23.0 million for the year ended December 31, 2020, compared to $20.7 million for the year ended December 31, 2019, an increase of $2.3 million or 11.1%. This increase was primarily attributable to incremental tenant insurance fees and dividends from an investment in a tenant reinsurance company made during 2019.

Property Operating Expenses

Property operating expenses were $123.5 million for the year ended December 31, 2020 compared to $110.3 million for the year ended December 31, 2019, an increase of $13.2 million, or 11.9%. The increase in property operating expenses resulted from a $12.6 million increase in non-same store property operating expenses that was primarily attributable to incremental property operating expenses of $7.8 million from 77 self storage properties acquired during 2020, and $4.9 million from 69 self storage properties acquired during 2019.

General and Administrative Expenses

General and administrative expenses decreased $0.4 million, or 0.9%, for the year ended December 31, 2020, compared to the year ended December 31, 2019. This decrease was attributable to decreases in supervisory and administrative fees charged by our PROs of $3.6 million primarily as a result of the cessation of payments to SecurCare following the merger and internalization of the management platform of SecurCare, partially offset by increases in costs related to our property management platform of $2.6 million due to the internalization of the management platform of SecurCare and an increase in store count.

Depreciation and Amortization

Depreciation and amortization increased $12.1 million, or 11.5%, for the year ended December 31, 2020, compared to the year ended December 31, 2019. This increase was primarily attributable to incremental depreciation expense related to the 77 self storage properties acquired during 2020, partially offset by a decrease in amortization of customer in-place leases from $11.3 million for the year ended December 31, 2019 to $9.0 million for the year ended December 31, 2020.

Interest Expense

Interest expense increased $6.1 million, or 10.9%, for the year ended December 31, 2020, compared to the year ended December 31, 2019. The increase in interest expense was primarily attributable to additional borrowings consisting of $155.0 million of additional term loan borrowings under the Company's credit facility in July 2019, $100.0 million of borrowings under the 2029 Term Loan Facility in April 2019, the issuance of the $150.0 million

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senior unsecured notes in a private placement in August 2019 and higher outstanding borrowings under the Revolver.

Equity In Earnings (Losses) Of Unconsolidated Real Estate Ventures

Equity in earnings (losses) of unconsolidated real estate ventures represents our share of earnings and losses incurred through our 25% ownership interests in the 2018 Joint Venture and the 2016 Joint Venture. During the year ended December 31, 2020, we recorded $0.3 million of equity in earnings from our unconsolidated real estate ventures compared to $5.0 million of losses for the year ended December 31, 2019. This was primarily the result of incremental losses from our 2018 Joint Venture during the year ended December 31, 2019 driven by real estate depreciation and amortization of customer in-place leases following the acquisition of the Initial 2018 Joint Venture Portfolio in September 2018.

Gain On Sale of Self Storage Properties

Gain on sale of self storage properties was $2.8 million for the year ended December 31, 2019. During the year ended December 31, 2019, we sold one self storage property to an unrelated third party for gross proceeds of $6.5 million.

Net Income Attributable to Noncontrolling Interests

As discussed in Note 2 to the consolidated financial statements in Item 8, we allocate U.S. generally accepted accounting principles ("GAAP") income (loss) utilizing the HLBV method, in which we allocate income or loss based on the change in each unitholders' claim on the net assets of our operating partnership at period end after adjusting for any distributions or contributions made during such period.

Due to the stated liquidation priorities and because the HLBV method incorporates non-cash items such as depreciation expense, in any given period, income or loss may be allocated disproportionately to noncontrolling interests. Net income attributable to noncontrolling interests was $30.9 million for the year ended December 31, 2020, compared to $62.0 million for the year ended December 31, 2019.

Critical Accounting Policies and Use of Estimates

Our financial statements have been prepared on the accrual basis of accounting in accordance with GAAP. The preparation of these financial statements requires us 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. 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. Actual results may differ from these estimates. We believe the following are our most critical accounting policies.

Principles of Consolidation and Presentation of Noncontrolling Interests

Our consolidated financial statements include the accounts of our operating partnership and its controlled subsidiaries. All significant intercompany balances and transactions have been eliminated in the consolidation of entities.

The limited partner ownership interests in our operating partnership that are held by owners other than us are referred to as noncontrolling interests. Noncontrolling interests also include ownership interests in DownREIT partnerships held by entities other than our operating partnership. Noncontrolling interests in a subsidiary are generally reported as a separate component of equity in our consolidated balance sheets. In our statements of operations, the revenues, expenses and net income or loss related to noncontrolling interests in our operating partnership are included in the consolidated amounts, with net income or loss attributable to the noncontrolling interests deducted separately to arrive at the net income or loss solely attributable to us.

When we obtain an economic interest in an entity, we evaluate the entity to determine if the entity is deemed a variable interest entity ("VIE"), and if we are deemed to be the primary beneficiary, in accordance with authoritative guidance issued on the consolidation of VIEs. When an entity is not deemed to be a VIE, we consider the provisions of additional guidance to determine whether the general partner controls a limited partnership or similar entity when the limited partners have certain rights. We consolidate all entities that are VIEs and of which the Company is deemed to be the primary beneficiary.

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Self Storage Properties and Customer In-Place Leases

Self storage properties are carried at historical cost less accumulated depreciation and any impairment losses. When self storage properties are acquired, the purchase price is allocated to the tangible and intangible assets acquired and liabilities assumed based on estimated fair values. The purchase price is allocated to the individual properties based on the fair value determined using an income approach or a cash flow analysis using appropriate risk adjusted capitalization rates, which take into account the relative size, age, and location of the individual properties along with current and projected occupancy and relative rental rates or appraised values, if available. Tangible assets are allocated to land, buildings and related improvements, and furniture and equipment.

In allocating the purchase price for a self storage property acquisition, we determine whether the acquisition includes intangible assets. We allocate a portion of the purchase price to an intangible asset attributed to the value of customer in-place leases. Because the majority of tenant leases are on a month-to-month basis, this intangible asset represents the estimated value of the leases in effect on the acquisition date. This intangible asset is amortized to expense using the straight-line method over 12 months, the estimated average remaining rental period for the leases.

Non-GAAP Financial Measures

FFO and Core FFO

Funds from operations, or FFO, is a widely used performance measure for real estate companies and is provided here as a supplemental measure of our operating performance. The December 2018 Nareit Funds From Operations White Paper - 2018 Restatement, which we refer to as the White Paper, defines FFO as net income (as determined under GAAP), excluding: real estate depreciation and amortization, gains and losses from the sale of certain real estate assets, gains and losses from change in control, mark-to-market changes in value recognized on equity securities, impairment write-downs of certain real estate assets and impairment of investments in entities when it is directly attributable to decreases in the value of depreciable real estate held by the entity and after items to record unconsolidated partnerships and joint ventures on the same basis. Distributions declared on subordinated performance units and DownREIT subordinated performance units represent our allocation of FFO to noncontrolling interests held by subordinated performance unitholders and DownREIT subordinated performance unitholders. For purposes of calculating FFO attributable to common shareholders, OP unitholders, and LTIP unitholders, we exclude distributions declared on subordinated performance units, DownREIT subordinated performance units, preferred shares and preferred units. We define Core FFO as FFO, as further adjusted to eliminate the impact of certain items that we do not consider indicative of our core operating performance. These further adjustments consist of acquisition costs, organizational and offering costs, gains on debt forgiveness, gains (losses) on early extinguishment of debt, and after adjustments for unconsolidated partnerships and joint ventures.

Management uses FFO and Core FFO as key performance indicators in evaluating the operations of our properties. Given the nature of our business as a real estate owner and operator, we consider FFO and Core FFO as key supplemental measures of our operating performance that are not specifically defined by GAAP. We believe that FFO and Core FFO are useful to management and investors as a starting point in measuring our operational performance because FFO and Core FFO exclude various items included in net income (loss) that do not relate to or are not indicative of our operating performance such as gains (or losses) from sales of self storage properties and depreciation, which can make periodic and peer analyses of operating performance more difficult. Our computation of FFO and Core FFO may not be comparable to FFO reported by other REITs or real estate companies.

FFO and Core FFO should be considered in addition to, but not as a substitute for, other measures of financial performance reported in accordance with GAAP, such as total revenues, operating income and net income (loss). FFO and Core FFO do not represent cash generated from operating activities determined in accordance with GAAP and are not a measure of liquidity or an indicator of our ability to make cash distributions. We believe that to further understand our performance, FFO and Core FFO should be compared with our reported net income (loss) and considered in addition to cash flows computed in accordance with GAAP, as presented in our consolidated financial statements.

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The following table presents a reconciliation of net income (loss) to FFO and Core FFO for the periods presented (in thousands, except per share and unit amounts):

Year Ended December 31,

Add (subtract):

Gain on sale of self storage properties — (2,814) (391)

Mark-to-market changes in value on equity securities 142 (610) —

Add:

Weighted average shares and units outstanding - FFO and Core FFO:(2)

Weighted average restricted common shares outstanding 30 28 29

Weighted average effect of outstanding forward offering agreement(3) 60 — —

Weighted average DownREIT OP unit equivalents outstanding 1,906 1,848 1,835

Weighted average LTIP units outstanding 543 585 694

Core FFO per share and unit $ 1.71 $ 1.54 $ 1.38

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The following table presents a reconciliation of earnings (loss) per share - diluted to FFO and Core FFO per share and unit for the periods presented:

Year Ended December 31,

Earnings (loss) per share - diluted $ 0.53 $ (0.15) $ 0.07

Add real estate depreciation and amortization 1.17 1.14 1.04

Subtract gain on sale of self storage properties — (0.03) —

Mark-to-market changes in value recognized on equity securities — (0.01) —

FFO attributable to subordinated performance unitholders (0.30) (0.38) (0.32)

Core FFO per share and unit $ 1.71 $ 1.54 $ 1.38

NOI

Net operating income, or NOI, represents rental revenue plus other property-related revenue less property operating expenses. NOI is not a measure of performance calculated in accordance with GAAP.

We believe NOI is useful to investors in evaluating our operating performance because:

•NOI is one of the primary measures used by our management and our PROs to evaluate the economic productivity of our properties, including our ability to lease our properties, increase pricing and occupancy and control our property operating expenses;

•NOI is widely used in the real estate industry and the self storage industry to measure the performance and value of real estate assets without regard to various items included in net income that do not relate to or are not indicative of operating performance, such as depreciation and amortization, which can vary depending upon accounting methods, the book value of assets, and the impact of our capital structure; and

•We believe NOI helps our investors to meaningfully compare the results of our operating performance from period to period by removing the impact of our capital structure (primarily interest expense on our outstanding indebtedness) and depreciation of the cost basis of our assets from our operating results.

There are material limitations to using a non-GAAP measure such as NOI, including the difficulty associated with comparing results among more than one company and the inability to analyze certain significant items, including depreciation and interest expense, that directly affect our net income (loss). We compensate for these limitations by considering the economic effect of the excluded expense items independently as well as in connection

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with our analysis of net income (loss). NOI should be considered in addition to, but not as a substitute for, other measures of financial performance reported in accordance with GAAP, such as total revenues and net income (loss).

The following table presents a reconciliation of net income (loss) to NOI for the periods presented (dollars in thousands):

Year Ended December 31,

(Subtract) add:

Gain on sale of self storage properties — (2,814) (391)

Our consolidated NOI shown in the table above does not include our proportionate share of NOI for our unconsolidated real estate ventures. For additional information about our 2018 Joint Venture and 2016 Joint Venture see Note 5 to the consolidated financial statements in Item 8.

EBITDA and Adjusted EBITDA

We define EBITDA as net income (loss), as determined under GAAP, plus interest expense, loss on early extinguishment of debt, income taxes, depreciation and amortization expense and the Company's share of unconsolidated real estate venture depreciation and amortization. We define Adjusted EBITDA as EBITDA plus acquisition costs, organizational and offering expenses, equity-based compensation expense, losses on sale of properties and impairment of long-lived assets, minus gains on sale of properties and debt forgiveness, and after adjustments for unconsolidated partnerships and joint ventures. These further adjustments eliminate the impact of items that we do not consider indicative of our core operating performance. In evaluating EBITDA and Adjusted EBITDA, you should be aware that in the future we may incur expenses that are the same as or similar to some of the adjustments in this presentation. Our presentation of EBITDA and Adjusted EBITDA should not be construed as an inference that our future results will be unaffected by unusual or non-recurring items.

We present EBITDA and Adjusted EBITDA because we believe they assist investors and analysts in comparing our performance across reporting periods on a consistent basis by excluding items that we do not believe are indicative of our core operating performance. EBITDA and Adjusted EBITDA have limitations as an analytical tool. Some of these limitations are:

•EBITDA and Adjusted EBITDA do not reflect our cash expenditures, or future requirements, for capital expenditures, contractual commitments or working capital needs;

•EBITDA and Adjusted EBITDA do not reflect the significant interest expense, or the cash requirements necessary to service interest or principal payments, on our debts;

•although depreciation and amortization are non-cash charges, the assets being depreciated and amortized will often have to be replaced in the future, and EBITDA and Adjusted EBITDA do not reflect any cash requirements for such replacements;

•Adjusted EBITDA excludes equity-based compensation expense, which is and will remain a key element of our overall long-term incentive compensation package, although we exclude it as an expense when evaluating our ongoing operating performance for a particular period;

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•EBITDA and Adjusted EBITDA do not reflect the impact of certain cash charges resulting from matters we consider not to be indicative of our ongoing operations; and

•other companies in our industry may calculate EBITDA and Adjusted EBITDA differently than we do, limiting their usefulness as comparative measures.

We compensate for these limitations by considering the economic effect of the excluded expense items independently as well as in connection with our analysis of net income (loss). EBITDA and Adjusted EBITDA should be considered in addition to, but not as a substitute for, other measures of financial performance reported in accordance with GAAP, such as total revenues and net income (loss).

The following table presents a reconciliation of net loss to EBITDA and Adjusted EBITDA for the periods presented (dollars in thousands):

Year Ended December 31,

Add:

Add:

Gain on sale of self storage properties — (2,814) (391)

Liquidity and Capital Resources

Liquidity Overview

Liquidity is the ability to meet present and future financial obligations. Our primary source of liquidity is cash flow from our operations. Additional sources are proceeds from equity and debt offerings, and debt financings including borrowings under the credit facility, 2023 Term Loan Facility, 2028 Term Loan Facility and 2029 Term Loan Facility.

Our short-term liquidity requirements consist primarily of property operating expenses, property acquisitions, capital expenditures, general and administrative expenses and principal and interest on our outstanding indebtedness. A further short-term liquidity requirement relates to distributions to our common and preferred shareholders and holders of preferred units, OP units, subordinated performance units, LTIP units, DownREIT OP units and DownREIT subordinated performance units. We expect to fund short-term liquidity requirements from our operating cash flow, cash on hand and borrowings under our credit facility.

Our long-term liquidity needs consist primarily of the repayment of debt, property acquisitions, and capital expenditures. We acquire properties through the use of cash, preferred units, OP units and subordinated performance units in our operating partnership or DownREIT partnerships. We expect to meet our long-term liquidity requirements with operating cash flow, cash on hand, secured and unsecured indebtedness, and the issuance of equity and debt securities.

The availability of credit and its related effect on the overall economy may affect our liquidity and future financing activities, both through changes in interest rates and access to financing. Currently, interest rates are low compared to historical levels. Our ability to access capital on favorable terms as well as to use cash from operations

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to continue to meet our liquidity needs, all of which are highly uncertain and cannot be predicted, could be affected by various risks and uncertainties, including, but not limited to, the effects of the COVID-19 pandemic. We believe that, as a publicly-traded REIT, we will have access to multiple sources of capital to fund our long-term liquidity requirements, including the incurrence of additional debt and the issuance of debt and additional equity securities. However, we cannot assure you that this will be the case.

Cash Flows

At December 31, 2020, we had $18.7 million in cash and cash equivalents and $3.0 million of restricted cash, a decrease in cash and cash equivalents of $1.8 million and a decrease in restricted cash of $0.7 million from December 31, 2019. Restricted cash primarily consists of escrowed funds deposited with financial institutions for real estate taxes, insurance, and other reserves for capital improvements in accordance with our loan agreements. The following discussion relates to changes in cash due to operating, investing, and financing activities, which are presented in our consolidated statements of cash flows included in Item 8 of this report.

Operating Activities

Cash provided by our operating activities was $220.7 million for the year ended December 31, 2020 compared to $196.7 million for the year ended December 31, 2019, an increase of $24.0 million. Our operating cash flow increased primarily due to 69 self storage properties acquired during the year ended December 31, 2019 that generated cash flow for the entire year ended December 31, 2020 and 77 self storage properties that were acquired during the year ended December 31, 2020. These increases were partially offset by higher cash payments for interest expense.

Investing Activities

Cash used in investing activities was $509.7 million for the year ended December 31, 2020 compared to $393.0 million for the year ended December 31, 2019. The primary uses of cash for the year ended December 31, 2020 were for our acquisition of 77 self storage properties for cash consideration of $496.5 million, deposits for potential acquisitions of $1.1 million, capital expenditures of $16.4 million and contributions to unconsolidated real estate ventures of $4.4 million partially offset by $7.6 million of proceeds from the sale of equity securities and $1.5 million of distributions from unconsolidated real estate ventures. The primary uses of cash for the year ended December 31, 2019 were for our acquisition of 69 self storage properties for cash consideration of $371.1 million, the acquisition of equity securities for $12.7 million, deposits for potential acquisitions of $4.4 million, capital expenditures of $20.6 million and the acquisition of the interest in a reinsurance company and related cash flows of $6.6 million, partially offset by distributions from unconsolidated real estate ventures of $11.5 million, $6.3 million of proceeds from the sale of one self storage property and $5.4 million of proceeds from the sale of equity securities.

Capital expenditures totaled $16.4 million, $20.6 million and $19.0 million during the years ended December 31, 2020, 2019 and 2018 respectively. We generally fund post-acquisition capital additions from cash provided by operating activities.

We categorize our capital expenditures broadly into three primary categories:

•recurring capital expenditures, which represent the portion of capital expenditures that are deemed to replace the consumed portion of acquired capital assets and extend their useful life;

•value enhancing capital expenditures, which represent the portion of capital expenditures that are made to enhance the revenue and value of an asset from its original purchase condition; and

•acquisitions capital expenditures, which represent the portion of capital expenditures capitalized during the current period that were identified and underwritten prior to a property's acquisition.

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The following table presents a summary of the capital expenditures for these categories, along with a reconciliation of the total for these categories to the capital expenditures reported in the accompanying consolidated statements of cash flows for the periods presented (dollars in thousands):

Year Ended December 31,

Change in accrued capital spending 248 (839) 94

Financing Activities

Cash provided by our financing activities was $286.5 million for the year ended December 31, 2020 compared to $204.3 million for the year ended December 31, 2019. Our sources of financing cash flows for the year ended December 31, 2020 primarily consisted of $680.0 million of borrowings under the Revolver and $250.0 million of borrowings under our 2030 Notes and 2032 Notes and $82.9 million of proceeds from the issuance of common shares. Our primary uses of financing cash flows for the year ended December 31, 2020 were for principal payments on existing debt of $546.1 million (which included $505.5 million of principal repayments under the Revolver and $40.6 million of scheduled fixed rate mortgage principal payments), distributions to noncontrolling interests of $73.8 million, distributions to common shareholders of $90.1 million and distributions to preferred shareholders of $13.1 million. Our sources of financing cash flows for the year ended December 31, 2019 primarily consisted of $572.0 million of borrowings under our credit facility, $100.0 million of borrowings under our 2029 Term Loan Facility, $150.0 million of borrowings under our Senior Unsecured Notes, $70.6 million of proceeds from the issuance of common shares and $43.6 million of proceeds from the issuance of Series A Preferred Shares. Our primary uses of financing cash flows for the year ended December 31, 2019 were for principal payments on existing debt of $561.6 million (which included $556.5 million of principal repayments under the Revolver and $5.1 million of scheduled fixed rate mortgage principal payments), distributions to noncontrolling interests of $76.0 million, distributions to common shareholders of $74.5 million and distributions to preferred shareholders of $12.4 million.

Credit Facility and Term Loan Facilities

As of December 31, 2020, our credit facility provided for total borrowings of $1.275 billion, consisting of five components: (i) a Revolver which provides for a total borrowing commitment up to $500.0 million, whereby we may borrow, repay and re-borrow amounts under the Revolver, (ii) a $125.0 million Term Loan A, (iii) a $250.0 million Term Loan B, (iv) a $225.0 million Term Loan C and (v) a $175.0 million Term Loan D. The Revolver matures in January 2024; provided that we may elect to extend the maturity to July 2024 by paying an extension fee of 0.075% of the total borrowing commitment thereunder at the time of extension and meeting other customary conditions with respect to compliance. The Term Loan A matures in January 2023, the Term Loan B matures in July 2024, the Term Loan C matures in January 2025 and the Term Loan D matures in July 2026. The Revolver, Term Loan A, Term Loan B, Term Loan C and Term Loan D are not subject to any scheduled reduction or amortization payments prior to maturity. As of December 31, 2020, we have an expansion option under the credit facility, which, if exercised in full, would provide for a total credit facility of $1.750 billion.

As of December 31, 2020, $125.0 million was outstanding under the Term Loan A with an effective interest rate of 3.74%, $250.0 million was outstanding under the Term Loan B with an effective interest rate of 2.91%, $225.0 million was outstanding under the Term Loan C with an effective interest rate of 2.80% and $175.0 million was outstanding under the Term Loan D with an effective interest rate of 3.57%. As of December 31, 2020, we would have had the capacity to borrow remaining Revolver commitments of $320.3 million while remaining in compliance with the credit facility's financial covenants.

We have a 2023 Term Loan Facility that matures in June 2023 and is separate from the credit facility in an aggregate amount of $175.0 million. As of December 31, 2020 the entire amount was outstanding under the 2023 Term Loan Facility with an effective interest rate of 2.83%. We have an expansion option under the 2023 Term

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Loan Facility, which, if exercised in full, would provide for total borrowings in an aggregate amount of $400.0 million.

We have a 2028 Term Loan Facility that matures in December 2028 and is separate from the credit facility and 2023 Term Loan Facility in an aggregate amount of $75.0 million. As of December 31, 2020 the entire amount was outstanding under the 2028 Term Loan Facility with an effective interest rate of 4.62%. We have an expansion option under the 2028 Term Loan Facility, which, if exercised in full, would provide for total borrowings in an aggregate amount up to $125.0 million.

We have a 2029 Term Loan Facility that matures in April 2029 and is separate from the credit facility, 2023 Term Loan Facility and 2028 Term Loan Facility in an aggregate amount of $100.0 million. As of December 31, 2020 the entire amount was outstanding under the 2029 Term Loan Facility with an effective interest rate of 4.27%.

For a summary of our financial covenants and additional detail regarding our credit facility, 2023 Term Loan Facility, 2028 Term Loan Facility and 2029 Term Loan Facility, please see Note 8 to the consolidated financial statements in Item 8.

2029 And 2031 Senior Unsecured Notes

On August 30, 2019, our operating partnership issued $100.0 million of 3.98% senior unsecured notes due August 30, 2029 and $50.0 million of 4.08% senior unsecured notes due August 30, 2031 in a private placement to certain institutional investors.

2030 And 2032 Senior Unsecured Notes

As discussed in Note 8 to the consolidated financial statements in Item 8, on October 22, 2020, our operating partnership issued $150.0 million of 2.99% senior unsecured notes due August 5, 2030 and $100.0 million of 3.09% senior unsecured notes due August 5, 2032 in a private placement to certain institutional investors.

Contractual Obligations

The following table summarizes information contained elsewhere in this Annual Report on Form 10-K regarding payments due under contractual obligations and commitments on an undiscounted basis as of December 31, 2020 (dollars in thousands):

Year Ending December 31,

Debt financings:

(1)Includes scheduled principal and maturity payments related to our debt financings.

(2)Interest is calculated until the maturity date (without regard to any extension that may be elected by the Company) based on the outstanding principal balance and the effective interest rate as of December 31, 2020.

Equity Transactions

Issuance of Common Shares and Series A Preferred Shares

As discussed in Note 3 to the consolidated financial statements in Item 8, on March 31, 2020, we closed on the mergers of SecurCare and DLAN with and into wholly-owned subsidiaries of the Company. In connection with the mergers, we issued 8,105,192 common shares to the former owners of SecurCare and DLAN.

During the year ended December 31, 2020, we sold 743,915 of our common shares through at the market offerings. The common shares were sold at an average offering price of $33.01 per share, resulting in net proceeds to us of approximately $22.9 million after deducting compensation payable by us to the agents and offering expenses.

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During September 2020, we completed an underwritten public offering of 4,500,000 common shares under forward sale agreements at a public offering price of $33.15 per share. The underwriters were granted a 30-day option to purchase up to an additional 675,000 common shares at the same price, which they partially exercised for an additional 400,000 common shares on October 6, 2020. On December 30, 2020, the Company settled a portion of the forward offering by physically delivering 1,850,510 common shares to the forward purchasers for net proceeds of approximately $60.0 million. As of December 31, 2020, 3,049,490 shares remained outstanding under the forward sale agreements.

During the year ended December 31, 2020, after receiving notices of redemption from certain OP unitholders, we elected to issue 892,070 common shares to such holders in exchange for 892,070 OP units in satisfaction of the operating partnership's redemption obligations.

During the year ended December 31, 2020, the Company issued 28,467 common shares in exchange for $1.0 million of principal payment reimbursements received during the year ended December 31, 2020 related to mortgages assumed in connection with the acquisition of self storage properties from PROs during the year ended December 31, 2014.

During the year ended December 31, 2020, after receiving notices of redemption from certain Series A-1 preferred unitholders, we elected to issue 5,600 Series A preferred shares to such holders in exchange for 5,600 Series A-1 preferred units in satisfaction of the operating partnership's redemption obligations.

Issuance of OP Equity

In connection with the 77 properties acquired during the year ended December 31, 2020, we issued $37.2 million of OP equity (consisting of 755,007 OP units, 28,894 LTIP units and 303,528 subordinated performance units). In addition, we issued 28,892 LTIP units to consultants that will vest upon the completion of expansion projects.

As discussed in Note 3 to the consolidated financial statements in Item 8, during the year ended December 31, 2020, the Company issued 445,701 OP units upon the conversion of 332,738 subordinated performance units and 246,156 OP units upon the conversion of an equivalent number of LTIP units.

Dividends and Distributions

During the year ended December 31, 2020, the Company paid $90.1 million of distributions to common shareholders, $13.1 million of distributions to preferred shareholders and distributed $73.8 million to noncontrolling interests.

On February 25, 2021, our board of trustees declared a cash dividend and distribution, respectively, of $0.35 per common share and OP unit to shareholders and OP unitholders of record as of March 15, 2021. On February 25, 2021, our board of trustees also declared cash distributions of $0.375 per Series A Preferred Share and Series A-1 preferred unit to shareholders and unitholders of record as of March 15, 2021. In addition, we expect to declare a cash distribution in the first quarter of 2021 to our subordinated performance unitholders of record as of March 15, 2021. Such dividends and distributions are expected to be paid on March 31, 2021.

Cash Distributions from our Operating Partnership

Under the LP Agreement of our operating partnership, to the extent that we, as the general partner of our operating partnership, determine to make distributions to the partners of our operating partnership out of the operating cash flow or capital transaction proceeds generated by a real property portfolio managed by one of our PROs, the holders of the series of subordinated performance units that relate to such portfolio are entitled to share in such distributions. Under the LP Agreement of our operating partnership, operating cash flow with respect to a portfolio of properties managed by one of our PROs is generally an amount determined by us, as general partner of our operating partnership, equal to the excess of property revenues over property related expenses from that portfolio. In general, property revenue from the portfolio includes:

(i)all receipts, including rents and other operating revenues;

(ii)any incentive, financing, break-up and other fees paid to us by third parties;

(iii)amounts released from previously set aside reserves; and

(iv)any other amounts received by us, which we allocate to the particular portfolio of properties.

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In general, property-related expenses include all direct expenses related to the operation of the properties in that portfolio, including real property taxes, insurance, property-level general and administrative expenses, employee costs, utilities, property marketing expense, property maintenance and property reserves and other expenses incurred at the property level. In addition, other expenses incurred by our operating partnership will also be allocated by us, as general partner, to the property portfolio and will be included in the property-related expenses of that portfolio. Examples of such other expenses include:

(i)corporate-level general and administrative expenses;

(ii)out-of-pocket costs, expenses and fees of our operating partnership, whether or not capitalized;

(iii)the costs and expenses of organizing and operating our operating partnership;

(iv)amounts paid or due in respect of any loan or other indebtedness of our operating partnership during such period;

(v)extraordinary expenses of our operating partnership not previously or otherwise deducted under item (ii) above;

(vi)any third-party costs and expenses associated with identifying, analyzing, and presenting a proposed property to us and/or our operating partnership; and

(vii)reserves to meet anticipated operating expenditures, debt service or other liabilities, as determined by us.

To the extent that we, as the general partner of our operating partnership, determine to make distributions to the partners of our operating partnership out of the operating cash flow of a real property portfolio managed by one of our PROs, operating cash flow from a property portfolio is required to be allocated to OP unitholders and to the holders of series of subordinated performance units that relate to such property portfolio as follows:

First, an amount is allocated to OP unitholders in order to provide OP unitholders (together with any prior allocations of capital transaction proceeds) with a cumulative preferred allocation on the unreturned capital contributions attributed to the OP units in respect of such property portfolio. The preferred allocation for all of our existing portfolios is 6%. As of December 31, 2020, our operating partnership had an aggregate of $1,811.6 million of unreturned capital contributions with respect to common shareholders and OP unitholders, with respect to the various property portfolios.

Second, an amount is allocated to the holders of the series of subordinated performance units relating to such property portfolio in order to provide such holders with an allocation (together with prior distributions of capital transaction proceeds) on their unreturned capital contributions. Although the subordinated allocation for the subordinated performance units is non-cumulative from period to period, if the operating cash flow from a property portfolio related to a series of subordinated performance units is sufficient, in the judgment of the general partner (with the approval of a majority of our independent trustees), to fund distributions to the holders of such series of subordinated performance units, but we, as the general partner of our operating partnership, decline to make distributions to such holders, the amount available but not paid as distributions will be added to the subordinated allocation corresponding to such series of subordinated performance units. The subordinated allocation for the outstanding subordinated performance units is 6%. As of December 31, 2020, an aggregate of $129.6 million of unreturned capital contributions has been allocated to the various series of subordinated performance units.

Thereafter, any additional operating cash flow is allocated to OP unitholders and the applicable series of subordinated performance units equally.

Following the allocation described above, we as the general partner of our operating partnership, will generally cause our operating partnership to distribute the amounts allocated to the relevant series of subordinated performance units to the holders of such series of subordinated performance units. We, as the general partner, may cause our operating partnership to distribute the amounts allocated to OP unitholders or may cause our operating partnership to retain such amounts to be used by our operating partnership for any purpose. Any operating cash flow that is attributable to amounts retained by our operating partnership pursuant to the preceding sentence will generally be available to be allocated as an additional capital contribution to the various property portfolios.

The foregoing description of the allocation of operating cash flow between the OP unitholders and subordinated performance unitholders is used for purposes of determining distributions to holders of subordinated performance units but does not necessarily represent the operating cash flow that will be distributed to OP unitholders (or paid as

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dividends to holders of our common shares). Any distribution of operating cash flow allocated to the OP unitholders will be made at our discretion (and paid as dividends to holders of our common shares at the discretion of our board of trustees).

Under the LP Agreement of our operating partnership, capital transactions are transactions that are outside the ordinary course of our operating partnership's business, involve the sale, exchange, other disposition, or refinancing of any property, and are designated as capital transactions by us, as the general partner. To the extent the general partner determines to distribute capital transaction proceeds, the proceeds from capital transactions involving a particular property portfolio are required to be allocated to OP unitholders and to the series of subordinated performance units that relate to such property portfolio as follows:

First, an amount determined by us, as the general partner, of such capital transaction proceeds is allocated to OP unitholders in order to provide OP unitholders (together with any prior allocations of operating cash flow) with a cumulative preferred allocation on the unreturned capital contributions attributed to the OP unitholders in respect of such property portfolio that relate to such capital transaction plus an additional amount equal to such unreturned capital contributions.

Second, an amount determined by us, as the general partner, is allocated to the holders of the series of subordinated performance units relating to such property portfolio in order to provide such holders with a non-cumulative subordinated allocation on the unreturned capital contributions made by such holders in respect of such property portfolio that relate to such capital transaction plus an additional amount equal to such unreturned capital contributions.

The preferred allocation and subordinated allocation with respect to capital transaction proceeds for each portfolio is equal to the preferred allocation and subordinated allocation for distributions of operating cash flow with respect to that portfolio.

Thereafter, any additional capital transaction proceeds are allocated to OP unitholders and the applicable series of subordinated performance units equally.

Following the allocation described above, we, as the general partner of our operating partnership, will generally cause our operating partnership to distribute the amounts allocated to the relevant series of subordinated performance units to the holders of such series of subordinated performance units. We, as general partner of our operating partnership, may cause our operating partnership to distribute the amounts allocated to the OP unitholders or may cause our operating partnership to retain such amounts to be used by our operating partnership for any purpose. Any capital transaction proceeds that are attributable to amounts retained by our operating partnership pursuant to the preceding sentence will generally be available to be allocated as an additional capital contribution to the various property portfolios.

The foregoing allocation of capital transaction proceeds between the OP unitholders and subordinated performance unitholders is used for purposes of determining distributions to holders of subordinated performance units but does not necessarily represent the capital transaction proceeds that will be distributed to OP unitholders (or paid as dividends to holders of our common shares). Any distribution of capital transaction proceeds allocated to the OP unitholders will be made at our discretion (and paid as dividends to holders of our common shares at the discretion of our board of trustees).

Our OP units are redeemable for cash or, at our option exchangeable on a one-for-one basis into common shares after an agreed period of time and certain other conditions. Our subordinated performance units are only convertible into OP units following a two year lock-out period and then (i) at the holder's election only upon the achievement of certain performance thresholds relating to the properties to which such subordinated performance units relate or (ii) at our election upon a retirement event of a PRO that holds such subordinated performance units or upon certain qualifying terminations.

Notwithstanding the two-year lock out period on conversions of subordinated performance units into OP units, if such subordinated performance units were convertible into OP units as of December 31, 2020, each subordinated performance unit would on average hypothetically convert into 1.23 OP units, or into an aggregate of approximately 16.4 million OP units. These amounts are based on historical financial information for the trailing twelve months ended December 31, 2020. The hypothetical conversion is calculated by dividing the average cash available for distribution, or CAD, per subordinated performance unit by 110% of the CAD per OP unit over the same period. We anticipate that as our CAD grows over time, the conversion ratio will also grow, including to levels that may exceed

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this amount. The actual number of OP units into which such subordinated performance units will become convertible may vary significantly and will depend upon the applicable conversion penalty and the actual CAD to the OP units and the actual CAD to the converted subordinated performance units in the one-year period ending prior to conversion. We have also granted registration rights to those persons who will be eligible to receive common shares issuable upon exchange of OP units issued in our formation transactions and certain contribution transactions.

Allocation of Capital Contributions

We, as the general partner of our operating partnership, in our discretion, have the right to increase or decrease, as appropriate, the amount of capital contributions allocated to our operating partnership in general and to each series of subordinated performance units to reflect capital expenditures made by our operating partnership in respect of each portfolio, the sale or refinancing of all or a portion of the properties comprising the portfolio, the distribution of capital transaction proceeds by our operating partnership, the retention by our operating partnership of cash for working capital purposes and other events impacting the amount of capital contributions allocated to the holders. In addition, to avoid conflicts of interests, any decision by us to increase or decrease allocations of capital contributions must also be approved by a majority of our independent trustees.

Off-Balance Sheet Arrangements

Except as disclosed in the notes to our financial statements, as of December 31, 2020, we did not 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, as of December 31, 2020, we have not guaranteed any obligations of unconsolidated entities nor made any commitments to provide funding to any such entities that creates any material exposure to any financing, liquidity, market or credit risk.

Segment

We manage our business as one reportable segment consisting of investments in self storage properties located in the United States. Although we operate in several markets, these operations have been aggregated into one reportable segment based on the similar economic characteristics among all markets.

Seasonality

The self storage business is subject to minor seasonal fluctuations. A greater portion of revenues and profits are realized from May through September. Historically, our highest level of occupancy has typically been in July, while our lowest level of occupancy has typically been in February. Results for any quarter may not be indicative of the results that may be achieved for the full fiscal year.

Inflation

Inflation in the United States has been relatively low in recent years and did not have a material impact on our results of operations for the years ended December 31, 2020, 2019 and 2018. Although the impact of inflation has been relatively insignificant in recent years, it remains a factor in the U.S. economy and may increase the cost of acquiring or replacing self storage properties and related improvements, as well as real estate property taxes, employee salaries, wages and benefits, utilities, and other expenses. Because our tenant leases are month-to-month, we may be able to rapidly adjust our rental rates to minimize the adverse impact of any inflation which could mitigate our exposure to increases in costs and expenses resulting from inflation.

ITEM 7A. Quantitative and Qualitative Disclosures About 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. The primary market risk to which we believe we are exposed is 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. We use interest rate swaps to moderate our exposure to interest rate risk by effectively converting the interest on variable rate debt to a fixed rate. We make limited use of other derivative financial instruments and we do not use them for trading or other speculative purposes.

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As of December 31, 2020, we had $174.0 million of debt subject to variable interest rates (excluding variable-rate debt subject to interest rate swaps). If one-month LIBOR were to increase or decrease by 100 basis points, the increase or decrease in interest expense on the variable-rate debt (excluding variable-rate debt subject to interest rate swaps) would decrease or increase future earnings and cash flows by approximately $1.7 million 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.

Item 8. Financial Statements and Supplementary Data

The independent registered public accounting firm's reports, consolidated financial statements and schedule listed in the accompanying index are filed as part of this report and incorporated herein by this reference. See "Index to Financial Statements" on page F-1 of this Annual Report on Form 10-K.

Item 9. Changes in and Disagreements With Accountants on Accounting and Financial Disclosure

None.

Item 9A. Controls and Procedures

Disclosure Controls and Procedures

A review and evaluation was performed by our management, including our Chief Executive Officer (the "CEO") and Chief Financial Officer (the "CFO"), of the effectiveness of the design and operation of our disclosure controls and procedures (as such term is defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act), as of the end of the period covered by this Annual Report on Form 10-K. Based on that review and evaluation, the CEO and CFO have concluded that our current disclosure controls and procedures, as designed and implemented, were effective.

Notwithstanding the foregoing, a control system, no matter how well designed and operated, can provide only reasonable, not absolute, assurance that it will detect or uncover failures within the Company to disclose material information otherwise required to be set forth in our periodic reports.

Management's Annual Report on Internal Control Over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal control over financial reporting. Internal control over financial reporting is defined in Rules 13a-15(f) and 15d-15(f) promulgated under the Exchange Act as a process designed by, or under the supervision of, our principal executive and principal financial officers and effected by our board of trustees, audit committee, management and other personnel to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with U.S. GAAP and includes those policies and procedures that:

•pertain to the maintenance of records that in reasonable detail accurately and fairly reflect the transactions and dispositions of the assets of the Company;

•provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with U.S. GAAP, and that our receipts and expenditures are being made only in accordance with authorizations of our management and trustees; and

Source: SEC EDGAR (public domain) · 10-K for the period ended 2020-12-31, filed 2021-02-26 · accession 0001618563-21-000018

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