SMA · SmartStop Self Storage REIT, Inc.

SmartStop Self Storage REIT, Inc. (“SmartStop” or “the Company”), a self-managed and fully-integrated self storage company, announced its overall results for the three and 12 months ended December 31, 2025. “2025 was a truly transformational year for SmartStop,” said H. Michael Schwartz, Chairman and Chief Executive Officer of SmartStop. “From our successful IPO to multiple Maple Bond offerings, nearly $335 million of high quality on-balance sheet acquisitions, and our acquisition of Argus Professional Storage Management, 2025 will certainly be a year to remember for our Company. Since our IPO in April, we have successfully executed on our business plan, and we look forward to continuing that success in 2026.” “Looking ahead, we are encouraged by the sector’s stabilization. As new supply continues to moderate, we believe rates from new customers are strengthening in many markets, while our internal customer and trend data support longer stays,” continued Mr. Schwartz. “However, the

SmartStop Self Storage REIT, Inc. (“SmartStop”) (NYSE: SMA), an internally managed real estate investment trust and a premier owner and operator of self-storage facilities in the United States and Canada, today announced the appointment of Wayne Johnson to its Board of Directors. Mr. Johnson currently serves as SmartStop’s Chief Investment Officer. “Wayne’s deep industry expertise and decades of leadership in the self-storage and commercial real estate sectors make him an exceptional addition to our Board of Directors,” said H. Michael Schwartz, Chairman and CEO of SmartStop. “His strategic vision has played a pivotal role in our growth, and we are fortunate to continue benefiting from his insight at the board level. We look forward to his guidance as we advance our long-term strategy and pursue new opportunities for the company.” Mr. Johnson has served as Chief Investment Officer since 2015. He also served as President from 2019 until his appointment to the Board. He has been a key

SmartStop Self Storage REIT, Inc. (“SmartStop”) (NYSE: SMA), an internally managed real estate investment trust and a premier owner and operator of self-storage facilities in the United States and Canada, today announced that it has completed an amended and restated senior unsecured credit facility in the initial amount of $500 million with a syndicate of banks led by KeyBank National Association, Bank of Montreal, JPMorgan Chase Bank, N.A., M&T Bank, The Bank of Nova Scotia, Truist Bank and Wells Fargo Bank, N.A. The financing will provide SmartStop with additional flexibility to support its continued growth across the United States and Canada. “We are extremely pleased to close this new credit facility, capping off a 12-month process to transform our investment-grade balance sheet,” said H. Michael Schwartz, Chairman and CEO of SmartStop. “This financing further strengthens our balance sheet, lowers our cost of debt, ladders out our debt maturities, and provides the flexibility

SmartStop Self Storage REIT, Inc. (“SmartStop”) (NYSE: SMA), an internally managed real estate investment trust and a premier owner and operator of self-storage facilities in the United States and Canada, announced today that it will release its financial results for the fourth quarter ended December 31, 2025, after market close on Wednesday, February 25, 2026. Management will host a conference call and webcast to discuss the results on Thursday, February 26, 2026, at 12:00 p.m. Eastern Time. During the call, company officers will review operating performance, discuss recent events, and conduct a question-and-answer session. The question-and-answer portion will be limited to registered financial analysts. All other participants will have a listen-only capability. Webcast Details: A live webcast of the call will be available on the Investor Relations section of the Company’s website at investors.smartstopselfstorage.com . To access the live webcast, participants are encouraged to visit

SmartStop Self Storage REIT, Inc. (“SmartStop”) (NYSE: SMA), an internally managed real estate investment trust and a premier owner and operator of self-storage facilities in the United States and Canada announced that its Founder, Chairman, and Chief Executive Officer, H. Michael Schwartz, will speak at the eighth annual KeyBanc Self Storage Investor Forum on Thursday, January 8, 2026. The forum will be held at the Westin New York Grand Central in New York City. Mr. Schwartz will participate in a fireside chat titled “The IPO: What It Means to Be Public, Why Now, and What’s Next?”. The session will take place at 12:00 p.m. Eastern Standard Time for registered attendees. About SmartStop Self Storage REIT, Inc. (SmartStop): SmartStop Self Storage REIT, Inc. (“SmartStop”) (NYSE: SMA) is a self-managed REIT with a fully integrated operations team of more than 1,000 self-storage professionals focused on growing the SmartStop ® Self Storage brand. SmartStop, through its indirect subsidiary