SmartStop Self Storage REIT, Inc.

ITEM 5. OTHER INFORMATION

Updates to the Code of Ethics and Business Conduct.

On November 4, 2026, our board of directors approved an updated Code of Ethics and Business Conduct (the “Updated Code of Ethics”), which is immediately effective. The Updated Code of Ethics will supersede the existing Code of Ethics and Business Conduct (the “Prior Code”) and will be applicable to all directors, officers and employees of the Company and our subsidiaries and affiliates, including our principal executive officer, principal financial officer and principal accounting officer.

The Updated Code of Ethics is intended to modernize the content and structure of our Prior Code for changes in our business and internal policies and regulatory and technological developments, while maintaining our core ethical principles and compliance framework. The approval of the Updated Code of Ethics does not relate to, and its adoption will not result in, any waiver, explicit or implicit, of any provision in the Prior Code. The substantive updates reflected in the Updated Code of Ethics include new content regarding emerging risk areas and evolving regulatory and technological developments, such as those related to prediction markets.

The foregoing description of the updates is subject to and qualified in its entirety by reference to the full text of the Updated Code of Ethics. The Updated Code of Ethics is posted on our website (https://investors.smartstopselfstorage.com/), under the Governance section of the website.