FIBK - First Interstate Banc goes ex dividend monday February, 03 2023 01:46 PM First Interstate BancSystem Inc. First Interstate Banc ( NASDAQ: FIBK ) has declared $0.47/share quarterly dividend , in line with previous. Payable Feb. 17; for shareholders of record Feb. 7; ex-div Feb. 6. See FIBK Dividend Scorecard, Yield Chart, & Dividend Growth. For further details see: First Interstate Banc goes ex dividend monday