Insider Transaction Report for Aimee M. Quirk

This filing details insider transactions by Aimee M. Quirk, a director at Business First Bancshares, Inc. On June 25, 2026, Ms. Quirk was granted 998 time-based restricted stock units (RSUs) under the company's 2024 Equity Incentive Plan. These RSUs are set to vest on June 25, 2027, and are economically equivalent to common stock. The filing also reports a transaction on June 26, 2026, where 1016 RSUs were acquired, which were granted on the same date according to footnote F2. Additionally, a non-derivative transaction on June 26, 2026, involved the acquisition of 1016 shares of common stock. Following these transactions, Ms. Quirk holds 2533 shares of common stock and 998 unvested RSUs.