Business First Bancshares, Inc. Commences Trading on NASDAQ Under Symbol “BFST”

April 9, 2018

Baton Rouge, LA – Business First Bancshares, Inc. (NASDAQ: BFST), the holding
company of b1BANK, Baton Rouge, Louisiana, announced today that
it has received all necessary approvals from NASDAQ Stock Market, LLC, and that
shares of the company’s common stock will begin trading on the NASDAQ Global
Select Market under the ticker symbol “BFST” at market opening today, Monday,
April 9, 2018.