 TYLER, Texas, Aug. 05, 2021 GLOBE NEWSWIRE -- The Board of Directors of Southside Bancshares, Inc., NASDAQ:SBSI, parent company of Southside Bank, declared a regular quarterly cash dividend of 0.33 per common share. The cash dividend is scheduled for payment on September 2, 2021, to common stock shareholders of record on August 19, 2021. 