X0708 D LIVE 0000705432 SOUTHSIDE BANCSHARES INC 1201 S BECKHAM TYLER TX TEXAS 75701 903-531-7111 TEXAS SOBANK INC Corporation true Julie N. Shamburger 1201 S. Beckham Avenue Tyler TX TEXAS 75701 Executive Officer Lee R. Gibson III 1201 S. Beckham Avenue Tyler TX TEXAS 75701 Executive Officer Director John R. Garrett 1201 S. Beckham Avenue Tyler TX TEXAS 75701 Director Donald W. Thedford 1201 S. Beckham Avenue Tyler TX TEXAS 75701 Director Lawrence L. Anderson 1201 S. Beckham Avenue Tyler TX TEXAS 75701 Director S. Elaine Anderson 1201 S. Beckham Avenue Tyler TX TEXAS 75701 Director Michael J. Bosworth 1201 S. Beckham Avenue Tyler TX TEXAS 75701 Director Herbert C. Buie 1201 S. Beckham Avenue Tyler TX TEXAS 75701 Director Patricia A. Callan 1201 S. Beckham Avenue Tyler TX TEXAS 75701 Director Shannon Dacus 1201 S. Beckham Avenue Tyler TX TEXAS 75701 Director George H. Henderson III 1201 S. Beckham Avenue Tyler TX TEXAS 75701 Director Melvin B. Lovelady 1201 S. Beckham Avenue Tyler TX TEXAS 75701 Director Tony K. Morgan 1201 S. Beckham Avenue Tyler TX TEXAS 75701 Director John F. Sammons, Jr. 1201 S. Beckham Avenue Tyler TX TEXAS 75701 Director H. J. Shands III 1201 S. Beckham Avenue Tyler TX TEXAS 75701 Director William Sheehy 1201 S. Beckham Avenue Tyler TX TEXAS 75701 Director Preston L. Smith 1201 S. Beckham Avenue Tyler TX TEXAS 75701 Director Commercial Banking Decline to Disclose 06b false 2020-11-06 false true false 100000 Piper Sandler & Co. 665 None None 1251 Avenue of the Americas New York NY NEW YORK 10020 MN MINNESOTA WY WYOMING IL ILLINOIS TX TEXAS MS MISSISSIPPI NY NEW YORK VA VIRGINIA SC SOUTH CAROLINA AR ARKANSAS PA PENNSYLVANIA WI WISCONSIN LA LOUISIANA IA IOWA ME MAINE OH OHIO TN TENNESSEE MI MICHIGAN OK OKLAHOMA CA CALIFORNIA false 100000000 100000000 0 false 44 1301821 0 0 false SOUTHSIDE BANCSHARES INC Julie N. Shamburger Julie N. Shamburger Chief Financial Officer 2020-11-18