Live feed18:18:58·179dINSIDERFilingvia QuantisnowLarge owner Susan Scott Heyneman Trust, Susan Heyneman & First Interstate Wealth Management Co-Trustees sold $309,900 worth of shares (10,000 units at $30.99) (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.FIBK· First Interstate BancSystem Inc.FinanceOriginal source