Insider Transaction Report for Patrick E. Mockler

This filing details insider transactions by Patrick E. Mockler, a director at Business First Bancshares, Inc. On June 25, 2026, Mockler was granted 998 time-based restricted stock units, vesting on June 25, 2027, with each unit equivalent to one share of common stock. These unvested units are subject to forfeiture under certain conditions. On June 26, 2026, Mockler acquired 1016 shares of common stock. Additionally, the filing notes holdings in the Rita Gardner Mockler Estate account, amounting to 30,888.472 shares of common stock, with Mockler disclaiming beneficial ownership except for any pecuniary interest. The transactions are reported on Form 4.