FIBK - First Interstate BancSystem Inc. 2023 Q1 - Results - Earnings Call Presentation April, 29 2023 10:28 PM First Interstate BancSystem Inc. 2023-04-29 22:28:15 ET The following slide deck was published by First Interstate BancSystem, Inc. in conjunction with their 2023 Q1 earnings call. For further details see: First Interstate BancSystem, Inc. 2023 Q1 - Results - Earnings Call Presentation