0000036029 2026-10-15 2026-10-15 false 0000036029 8-K 2026-10-15 First Financial Bankshares, Inc. TX 0-07674 75-0944023 400 Pine Street Abilene TX 79601 325 627-7155 false false false false Common Stock, $0.01 par value FFIN NASDAQ false