UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

Current Report

Pursuant To Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): August 20, 2025

CUBESMART

CUBESMART, L.P.

(Exact Name Of Registrant As Specified In Charter)

Maryland (CubeSmart) Delaware (CubeSmart, L.P.)		001-32324 000-54462		20-1024732 34-1837021
(State or Other Jurisdiction of Incorporation)		(Commission File Number)		(IRS Employer Identification Number)

5 Old Lancaster Road,
Malvern, Pennsylvania 19355

(Address of Principal Executive Offices)

(610) 535-5000

(Registrant’s telephone number, including area code)

Not Applicable

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

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

Title of Each Class		Trading Symbol(s)		Name of Each Exchange on Which Registered
Common Shares, $0.01 par value per share, of CubeSmart		CUBE		New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 under the Securities Act (17 CFR 230.405) or Rule 12b-2 under the Exchange Act (17 CFR 240.12b-2).

Emerging growth company (CubeSmart) ¨

Emerging growth company (CubeSmart, L.P.) ¨

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.

CubeSmart ¨

CubeSmart, L.P. ¨

Co-Registrant CIK	0001300485
Co-Registrant Amendment Flag	false
Co-Registrant Form Type	8-K
Co-Registrant DocumentPeriodEndDate	2025-08-20
Co-Registrant Address Line One	5 Old Lancaster Road
Co-Registrant City or Town	Malvern
Co-Registrant State	Pennsylvania
Co-Registrant Zipcode	19355
Co-Registrant City Area Code	610
Co-Registrant Local Phone No.	535-5000
Co-Registrant Written Communications	false
Co-Registrant Solicitating Materials	false
Co-Registrant PreCommencement Tender Offer	false
Co-Registrant PreCommencement Issuer Tender Offer	false

Item 1.01 Entry into a Material Definitive Agreement.

On August 20, 2025, CubeSmart, L.P. (the “Operating Partnership”) and CubeSmart (the “Company”) completed the issuance and sale of $450.0 million in aggregate principal amount of the Operating Partnership’s 5.125% senior notes due 2035 (the “Notes”), and the Company’s related full and unconditional guarantee of the payment of principal, the make-whole premium, if any, and interest on the Notes (the “Guarantee”).

The net proceeds from the sale of the Notes to the Operating Partnership, after deducting the underwriters’ discount and estimated transaction expenses payable by the Company, are approximately $440.2 million. The Operating Partnership expects to use the net proceeds from the offering to repay outstanding indebtedness under its unsecured revolving credit facility and for working capital and other general corporate purposes, which may include repayment or repurchase of certain other outstanding indebtedness of the Company or its consolidated subsidiaries, including the Operating Partnership.

The Notes and the Guarantee were issued pursuant to the indenture, dated as of September 16, 2011 (the “Indenture”), among the Company, the Operating Partnership and U.S. Bank Trust Company, National Association, as successor to U.S. Bank National Association, as trustee (the “Trustee”), as supplemented by the Eleventh Supplemental Indenture, dated as of August 20, 2025 (the “Eleventh Supplemental Indenture”), among the Company, the Operating Partnership and the Trustee. A copy of the form of the Notes and a copy of the form of the Guarantee are filed herewith as Exhibits 4.1 and 4.2, respectively, and incorporated into this Item 1.01 by reference.

The Notes accrue interest at the rate of 5.125% per annum, with interest payable in cash semi-annually in arrears on May 1 and November 1 of each year. The Notes accrue interest from and including August 20, 2025 and will be payable beginning May 1, 2026.

The Notes are senior unsecured indebtedness of the Operating Partnership, ranking equally in right of payment with all of the Operating Partnership’s other unsecured unsubordinated indebtedness from time to time outstanding. The Notes are effectively subordinated to the Operating Partnership’s secured indebtedness and to the indebtedness and other liabilities of the consolidated subsidiaries of the Operating Partnership.

The Operating Partnership may redeem the Notes, at any time and from time to time, prior to August 1, 2035 (the “Par Call Date”), in whole or in part, at a redemption price equal to the greater of (i) 100% of the principal amount of the Notes then outstanding to be redeemed and (ii) the sum of the present values of the remaining scheduled payments of principal and interest on the Notes to be redeemed (not including any accrued and unpaid interest to the redemption date), assuming that such Notes matured on the Par Call Date, discounted to the redemption date on a semi-annual basis at a rate equal to the Treasury Rate (defined in the Eleventh Supplemental Indenture) plus 20 basis points, plus accrued and unpaid interest to, but not including, the redemption date.

On or after the Par Call Date, the Operating Partnership may redeem the Notes at any time in whole or in part and from time to time at a redemption price equal to 100% of the principal amount of the Notes to be redeemed, plus accrued and unpaid interest on the principal amount of the Notes being redeemed to, but not including, the redemption date.

The Indenture and the Eleventh Supplemental Indenture contain covenants that, among other things, (i) restrict the ability of the Operating Partnership and its subsidiaries to, subject to certain exceptions, incur additional debt and incur debt secured by liens, and (ii) restrict the Operating Partnership and its subsidiaries from owning unencumbered assets representing less than 150% of the outstanding principal amount of unsecured debt.

The material terms of the Notes and the Guarantee are described in a prospectus supplement dated August 11, 2025, as filed with the Securities and Exchange Commission (the “Commission”) on August 12, 2025, pursuant to Rule 424(b)(5) of the Securities Act of 1933, as amended (the “Securities Act”), which relates to the offer and sale of the Notes and the Guarantee and supplements the Company’s and the Operating Partnership’s prospectus, as filed with the Commission on March 3, 2023, contained in the Company’s and the Operating Partnership’s registration statement on Form S-3ASR (File No. 333-270248) under the Securities Act.

The Indenture was previously filed with the Commission on September 16, 2011 as Exhibit 4.5 to the Company’s and the Operating Partnership’s registration statement on Form S-3 (File No. 333-176885) under the Securities Act, and is incorporated into this Item 1.01 by reference. The Eleventh Supplemental Indenture is being filed with the Commission as Exhibit 4.3 to this Current Report on Form 8-K and is incorporated into this Item 1.01 by reference.

The foregoing is not a complete description of the Indenture, the Eleventh Supplemental Indenture, the Notes or the Guarantee and is qualified in its entirety by reference to the full text of those documents, each of which is incorporated herein by reference.

In connection with the foregoing, the Company and the Operating Partnership are filing as Exhibit 5.1 to this Current Report on Form 8-K the opinion of their counsel with respect to the validity of the Notes and the Guarantee.

Item 2.03 Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of the Registrant.

The information provided in Item 1.01 of this Current Report on Form 8-K pertaining to the Notes and the Guarantee is incorporated by reference into this Item 2.03.

Item 9.01 Financial Statements and Exhibits.

Exhibit Number		Description

4.1		Form of the Operating Partnership’s 5.125% senior notes due 2035.

4.2		Form of CubeSmart Guarantee (included in Exhibit 4.1).

4.3		Eleventh Supplemental Indenture, dated as of August 20, 2025, among CubeSmart, CubeSmart, L.P. and U.S. Bank Trust Company, National Association.

4.4*		Indenture, dated as of September 16, 2011, among CubeSmart, CubeSmart, L.P. and U.S. Bank Trust Company, National Association (as successor to U.S. Bank National Association), incorporated by reference to Exhibit 4.5 to the Company’s Registration Statement on Form S-3, filed with the Commission on September 16, 2011.

5.1		Opinion of Troutman Pepper Locke LLP as to the legality of the Notes.

23.1		Consent of Troutman Pepper Locke LLP (included in Exhibit 5.1 and incorporated herein by reference).

104		Cover Page Interactive Data File - the cover page interactive data file does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.

* Incorporated herein by reference as above indicated.

Signatures

Pursuant to the requirements of the Securities Exchange Act of 1934, each of the registrants has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

	CUBESMART

Date: August 20, 2025	By:	/s/ Jeffrey P. Foster
		Name:	Jeffrey P. Foster
		Title:	Chief Legal Officer & Secretary

	CUBESMART, L.P.

	By:	CubeSmart, its general partner

Date: August 20, 2025	By:	/s/ Jeffrey P. Foster
		Name:	Jeffrey P. Foster
		Title:	Chief Legal Officer & Secretary

CubeSmart 8-K