First Interstate BancSystem, Inc. announced that on February 9, 2023, Ashley Hayslip's service as Chief Banking Officer for the company was terminated. Contemporaneously with the termination of Ms. Hayslip's service, Ms. Lorrie Asker, age 55, agreed to serve as the Company's Chief Banking Officer on an interim basis until a permanent replacement is identified. Ms. Asker has been serving as its Rocky Mountain Region Regional President since August 15, 2019.

Prior to such time, she served from 2015 to 2019 as Commercial Banking Executive for First Foundation Bank. In addition to this role, Ms. Asker enjoyed a lengthy career at Sterling Bank where she served in a variety of senior leadership positions.