0000714562 2026-08-26 2026-08-26 0000714562 false 8-K 2026-08-26 FIRST FINANCIAL CORPORATION 0-16759 IN 35-1546989 One First Financial Plaza Terre Haute IN 47807 812 238-6000 false false false false Common Stock, par value $0.125 per share THFF NASDAQ false