 ABILENE, Texas, Oct. 14, 2021 PRNewswire -- First Financial Bank, a wholly owned subsidiary of First Financial Bankshares, Inc. NASDAQ: FFIN, completed its sixth annual company-wide Day of Service on Columbus Day, October 11, 2021. First Financial partnered with nearly 100 local non-profit organizations across the state to provide assistance and perform service projects in each of the communities it serves. 