Simmons First National Corporation to Host Investor Day Simmons First National Corporation to Host Investor DayPR NewswirePINE BLUFF, Ark., Sept. 22, 2026 PINE BLUFF, Ark., Sept. 22, 2026 /PRNewswire/ -- Simmons First National Corporation (NASDAQ: SFNC) (Simmons or Company) today announced it will...