 BATON ROUGE, La., March 22, 2021 GLOBE NEWSWIRE -- Business First Bancshares, Inc. Business First NASDAQ: BFST, the holding company for b1BANK, and Smith Shellnut Wilson, LLC SSW today jointly announced the signing of a definitive agreement under which b1BANK will acquire SSW. SSW is a registered investment advisor specializing in managing investment portfolios for corporations, foundations and individuals. Consummation of the acquisition is expected to occur in the coming weeks. 