Allegiance Bancshares Inc. will promote President Steven Retzloff to CEO, effective Jan. 1, 2020, replacing George Martinez, who will remain chairman.

Martinez will also retire as CEO of Allegiance Bancshares' unit, Allegiance Bank, while becoming its vice chairman. Retzloff will remain executive chairman of the bank.

Allegiance Bancshares Executive Vice President Ramon Vitulli III will be promoted to president. He will also be promoted to CEO of the bank from president and COO.

The executive vice president and chief risk officer of Allegiance Bancshares and the bank, Okan Akin, will become president and chief risk officer of the bank and remain executive vice president and chief risk officer of Allegiance Bancshares.

All changes will be effective Jan. 1, 2020.