Keith Donahoe Appointed President of Southside Bancshares, Inc., and Southside Bank

On May 16, 2024, the Boards of Southside Bancshares, Inc. (the “Company”) (NASDAQ: SBSI), and Southside Bank (the “Bank”), unanimously approved the appointment of Keith Donahoe to serve as President of the Company and the Bank.

Donahoe joined the Bank in 2021 and has served as its Regional President of Central Texas since 2022. He previously served in leadership roles at Frost Bank for two and a half decades prior to joining Southside. In his new role, Donahoe will lead Southside’s efforts in achieving its strategic objectives and driving the continued success of Southside forward.

Lee R. Gibson will continue as Chief Executive Officer (CEO) of the Company and the Bank.

“Keith brings an extensive wealth of knowledge, experience, and expertise to this position, having demonstrated exceptional leadership and dedication in his role as the Bank’s Regional President of Central Texas over the last three years,” said CEO Lee Gibson. “His deep understanding of our industry, our culture and his vision for Southside’s future make him the ideal candidate to serve as President.”

About Southside Bank

Southside Bank is headquartered in Tyler, Texas, with approximately $8.35 billion in assets as of March 31, 2024. Southside currently operates 54 branches, one loan production office, and a network of 73 ATMs/ITMs throughout East Texas, Southeast Texas, and the greater Dallas/Fort Worth, Austin, and Houston areas. Additionally, Southside is affiliated with over 60,000 ATMS across the nation. 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.