SCHEDULE 13G/A 0001193125-24-036105 0001289490 XXXXXXXX LIVE 1 Common Stock 04/04/2025 0001585389 SmartStop Self Storage REIT, Inc. 83192D402 10 Terrace Road Ladera Ranch CA 92694 Rule 13d-1(c) Extra Space Storage Inc. MD 0.00 0.00 0.00 0.00 0.00 N 0.0 CO ESS Holdings Business Trust I MA 0.00 0.00 0.00 0.00 0.00 N 0.0 OO Extra Space Storage LP DE 0.00 0.00 0.00 0.00 0.00 N 0.0 PN SmartStop Self Storage REIT, Inc. 10 Terrace Road, Ladera Ranch, CA, 92694 Each of the following is hereinafter individually referred to as a "Reporting Person" and collectively as the "Reporting Persons." This statement is filed on behalf of: Extra Space Storage Inc. ESS Holdings Business Trust I Extra Space Storage LP The principal business address of each of the Reporting Persons is 2795 East Cottonwood Parkway, Suite 300, Salt Lake City, UT 84121. Extra Space Storage Inc. was established under the laws of the State of Maryland. ESS Holdings Business Trust I was established under the laws of the Commonwealth of Massachusetts. Extra Space Storage LP was established under the laws of the State of Delaware. Y This amendment to Schedule 13G is being filed on behalf of the Reporting Persons to report that, as of April 4, 2025, the Reporting Persons do not beneficially own any shares of Common Stock. 0.0% 0 0 0 0 N Y Y Y Y Y N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11. Exhibit 99.1: Joint Filing Agreement (previously filed). Extra Space Storage Inc. /s/ Gwyn McNeal 05/13/2025 ESS Holdings Business Trust I /s/ Gwyn McNeal 05/13/2025 Extra Space Storage LP /s/ Gwyn McNeal 05/13/2025