Reliant Bancorp, Inc. (the “Company”) announced that David A. Kowalski has resigned as Chief Accounting Officer and Controller of the Company in order to pursue other interests. The Company also announced that Mark C. Seaton has been appointed as Senior Vice President, Chief Accounting Officer and Controller of the Company to succeed Mr. Kowalski. Mr. Seaton is an experienced financial executive with 19 years of financial institution accounting experience. Prior to joining the Company, Mr. Seaton was employed as Senior Vice President, Controller of CapStar Bank in Nashville, Tennessee.