Southside Bank Announces Retirement of Chief Executive Officer, Lee Gibson, Appoints Keith Donahoe as Successor

TYLER, Texas, Sept. 19, 2025 (GLOBE NEWSWIRE) -- Southside Bancshares, Inc. (the “Company”) and Southside Bank (the “Bank”), a subsidiary of the Company, has announced the upcoming retirement of Lee Gibson, Chief Executive Officer (“CEO”) and director of the Company and the Bank, effective December 31, 2025. Mr. Gibson will continue as a director of the Company and the Bank. Succeeding him as CEO upon his retirement is Keith Donahoe, current President of the Company and the Bank, who has over 30 years of banking experience.