Form 4 Filing for Business First Bancshares, Inc.

This filing details transactions by Rick D. Day, a director at Business First Bancshares, Inc. On June 25, 2026, Mr. Day was granted 998 time-based restricted stock units (RSUs) vesting on June 25, 2027. These RSUs are economically equivalent to common stock and subject to forfeiture. On June 26, 2025, Mr. Day received an award of 1,016 time-based RSUs vesting one year later. Additionally, on June 26, 2026, there was a transaction involving 1,016 shares of common stock, acquired with a post-transaction share count of 268,401. The filing also notes a disposal of 1,016 RSUs on June 26, 2026, reducing the post-transaction RSUs to 998.