CubeSmart

UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM****10-K

For the fiscal year ended****December 31, 2023

OR

For the transition period from to

Commission file number001-32324 (CubeSmart)

Commission file number000-54462 (CubeSmart, L.P.)

CUBESMART

CUBESMART, L.P.

(Exact Name of Registrant as Specified in Its Charter)

Registrant’s telephone number, including area code (610)535-5000

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

**Securities registered pursuant to Section 12(g)****of the Act:**Units of General Partnership Interest of CubeSmart, L.P.

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.

Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).

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

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.

Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report.

If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of an error to previously issued financial statements.

Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of the registrant’s executive officers during the relevant recovery period pursuant to § 240.10D-1(b).

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

As of June 30, 2023, the last business day of CubeSmart’s most recently completed second fiscal quarter, the aggregate market value of common shares held by non-affiliates of CubeSmart was $10,005,900,746. As of February 27, 2024, the number of common shares of CubeSmart outstanding was 224,954,599.

As of June 30, 2023, the last business day of CubeSmart, L.P.’s most recently completed second fiscal quarter, the aggregate market value of the 1,418,549 units of limited partnership (the “OP Units”) held by non-affiliates of CubeSmart, L.P. was $63,352,398 based upon the last reported sale price of $44.66 per share on the New York Stock Exchange on June 30, 2023 of the common shares of CubeSmart, the sole general partner of CubeSmart, L.P. (For this computation, the market value of all OP Units beneficially owned by CubeSmart has been excluded.)

Documents incorporated by reference: Portions of the Proxy Statement for the 2024 Annual Meeting of Shareholders of CubeSmart to be filed subsequently with the SEC are incorporated by reference into Part III of this report.

EXPLANATORY NOTE

This report combines the annual reports on Form 10-K for the year ended December 31, 2023 of CubeSmart (the “Parent Company” or “CubeSmart”) and CubeSmart, L.P. (the “Operating Partnership”). The Parent Company is a Maryland real estate investment trust (“REIT”), that owns its assets and conducts its operations through the Operating Partnership, a Delaware limited partnership, and subsidiaries of the Operating Partnership. The Parent Company, the Operating Partnership and their consolidated subsidiaries are collectively referred to in this report as the “Company”. In addition, terms such as “we”, “us”, or “our” used in this report may refer to the Company, the Parent Company and/or the Operating Partnership.

The Parent Company is the sole general partner of the Operating Partnership and, as of December 31, 2023, owned a 99.4% interest in the Operating Partnership. The remaining 0.6% interest consists of OP Units issued by the Operating Partnership to third parties in exchange for contributions of properties to the Operating Partnership. As the sole general partner of the Operating Partnership, the Parent Company has full and complete authority over the Operating Partnership’s day-to-day operations and management.

Management operates the Parent Company and the Operating Partnership as one enterprise. The management teams of the Parent Company and the Operating Partnership are identical, and their constituents are officers of both the Parent Company and of the Operating Partnership.

There are a few differences between the Parent Company and the Operating Partnership, which are reflected in the note disclosures in this report. The Company believes it is important to understand the differences between the Parent Company and the Operating Partnership in the context of how these entities operate as a consolidated enterprise. The Parent Company is a REIT, whose only material asset is its ownership of the partnership interests of the Operating Partnership. As a result, the Parent Company does not conduct business itself, other than acting as the sole general partner of the Operating Partnership, issuing public equity from time to time and guaranteeing the debt obligations of the Operating Partnership. The Operating Partnership holds substantially all of the assets of the Company and, directly or indirectly, holds the ownership interests in the Company’s real estate ventures. The Operating Partnership conducts the operations of the Company’s business and is structured as a partnership with no publicly traded equity. Except for net proceeds from equity issuances by the Parent Company, which are contributed to the Operating Partnership in exchange for partnership units, the Operating Partnership generates the capital required by the Company’s business through the Operating Partnership’s operations, by the Operating Partnership’s direct or indirect incurrence of indebtedness or through the issuance of partnership units of the Operating Partnership or equity interests in subsidiaries of the Operating Partnership.

The substantive difference between the Parent Company’s and the Operating Partnership’s filings is the fact that the Parent Company is a REIT with public equity, while the Operating Partnership is a partnership with no publicly traded equity. In the financial statements, this difference is primarily reflected in the equity (or capital for the Operating Partnership) section of the consolidated balance sheets and in the consolidated statements of equity (or capital). Apart from the different equity treatment, the consolidated financial statements of the Parent Company and the Operating Partnership are nearly identical.

The Company believes that combining the annual reports on Form 10-K of the Parent Company and the Operating Partnership into a single report will:

In order to highlight the differences between the Parent Company and the Operating Partnership, the separate sections in this report for the Parent Company and the Operating Partnership specifically refer to the Parent Company and the Operating Partnership. In the sections that combine disclosures of the Parent Company and the Operating Partnership, this report refers to such disclosures as those of the Company. Although the Operating Partnership is generally the entity that directly or indirectly enters into contracts and real estate ventures and holds assets and debt, reference to the Company is appropriate because the business is one enterprise and the Parent Company operates the business through the Operating Partnership.

As general partner with control of the Operating Partnership, the Parent Company consolidates the Operating Partnership for financial reporting purposes, and the Parent Company does not have significant assets other than its investment in the Operating Partnership. Therefore, the assets and liabilities of the Parent Company and the Operating Partnership are the same on their respective financial statements. The separate discussions of the Parent Company and the Operating Partnership in this report should be read in conjunction

with each other to understand the results of the Company’s operations on a consolidated basis and how management operates the Company.

This report also includes separate Item 9A - Controls and Procedures sections, signature pages and Exhibits 31 and 32 certifications for each of the Parent Company and the Operating Partnership, in order to establish that the Chief Executive Officer and the Chief Financial Officer of the Parent Company and the Chief Executive Officer and the Chief Financial Officer of the Operating Partnership have made the requisite certifications and that the Parent Company and the Operating Partnership are compliant with Rule 13a-15 or Rule 15d-15 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”) and 18 U.S.C. §1350.