[8-K] SmartStop Self Storage REIT, Inc. Reports Material Event

Rhea-AI Filing Summary

SmartStop Self Storage REIT, Inc. reported that its year-over-year same-store revenue for July 2025 increased by 2.9%. The company defines same-store revenue to include rental income, certain ancillary revenue, administrative fees, and late fees, and explicitly excludes tenant protection program revenue from the same-store pool comparison. This single-month performance is presented as a like-for-like operational metric comparing the Company’s same-store portfolio in July 2025 with the comparable month in 2024.

Positive

• Same-store revenue growth of 2.9% in July 2025 indicates positive year-over-year operational momentum
• Revenue measure includes rental, ancillary, administrative and late fees, giving a broader view of property-level cash generation

Negative

• Metric excludes tenant protection program revenue, which can understate total revenue change if those programs are material
• Single-month data may not reflect longer-term trends or seasonality and is limited in scope

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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): September 2, 2025

SmartStop Self Storage REIT, Inc.

(Exact name of registrant as specified in its charter)

Maryland (State or other jurisdiction of incorporation) 001-42584 (Commission File Number) 46-1722812 (IRS Employer Identification No.)

10 Terrace Road, Ladera Ranch, California 92694

(Address of principal executive offices, including zip code)

(866) 418-5144

(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 Stock, $0.001 par value		SMA		New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter). Emerging growth company☐

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. ☐

Item 7.01 Regulation FD Disclosure

On September 3, 2025, SmartStop Self Storage REIT, Inc. (the “Company”) and members of its management team will be participating in the Self Storage Association's 2025 Fall Conference & Trade Show. The Company will provide the following metric for the Company’s 2025 same-store facilities (stabilized and comparable properties that have been included in the consolidated results of operations since January 1, 2024, excluding four other properties):

•July 2025 year-over-year same-store revenue growth was 2.9%. This represents year-over-year growth of revenue, which includes rental income, certain ancillary revenue, administrative and late fees, but excludes tenant protection program revenue for the Company’s same-store pool for the month of July 2025 as compared to the comparable period in 2024.

Pursuant to the rules and regulations of the Securities and Exchange Commission, the information in this Item 7.01 disclosure is deemed to have been furnished and shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section. Such information shall not be incorporated by reference into any filing of the Company, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

Signature(s)

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

					SMARTSTOP SELF STORAGE REIT, Inc.
Date: September 2, 2025			By:		/s/ James R. Barry
					James R. Barry
					Chief Financial Officer and Treasurer

FAQ

What was SmartStop (SMA)'s same-store revenue change in July 2025?

Same-store revenue for July 2025 rose by 2.9% year-over-year.

What items are included in SmartStop's same-store revenue metric?

The metric includes rental income, certain ancillary revenue, administrative fees, and late fees.

Is tenant protection program revenue included in the same-store comparison?

No. Tenant protection program revenue is excluded from the same-store pool reported for July 2025.

Does this filing include full monthly or quarterly financial statements for SMA?

No. The content provides a single same-store revenue percentage for July 2025 and does not include full financial statements or earnings data.

How should investors interpret a single-month same-store percentage?

A single-month 2.9% change shows short-term operational direction but should be compared with multi-month trends and formal financial reports for material conclusions.