The Board of Directors of Southside Bancshares, Inc., (NYSE: SBSI), parent company of Southside Bank declared a regular quarterly cash dividend of $0.36 per common share. The cash dividend of $0.36 is scheduled for payment on June 1, 2026, to common stock shareholders of record on May 18, 2026.

About Southside Bancshares, Inc.

Southside Bancshares, Inc. is a bank holding company headquartered in Tyler, Texas, with approximately $8.80 billion in assets as of March 31, 2026, that wholly-owns Southside Bank. Southside Bank currently operates 55 branches and a network of 71 ATMs/ITMs throughout East Texas, Southeast Texas and the greater Dallas/Fort Worth, Austin and Houston areas. Serving customers since 1960, Southside Bank is a community-focused financial institution that offers a full range of financial products and services to individuals and businesses. These products and services include consumer and commercial loans, mortgages, deposit accounts, safe deposit boxes, treasury management, wealth management, trust services, brokerage services and an array of online and mobile services.

To learn more about Southside Bancshares, Inc., please visit our investor relations website at https://investors.southside.com. Our investor relations site provides a detailed overview of our activities, financial information and historical stock price data. To receive email notification of company news, events and stock activity, please register on the website under Resources and Investor Email Alerts. Questions or comments may be directed to Lindsey Bailes at (903) 630-7965, or lindsey.bailes@southside.com.

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