First Interstate BancSystem, Inc., parent company of First Interstate Bank, will report first quarter results after the market closes on Tuesday, April 29, 2025. About First Interstate BancSystem ...

First Interstate BancSystem Inc. (Nasdaq: FIBK), a Billings-based institution, is acquiring Sioux Falls-headquartered Great Western Bancorp Inc. (NYSE: GWB) in an all-stock transaction valued at ab… ...

Ownership of Idaho Independent Bank will switch to First Interstate Bank when a merger between the two companies takes effect. Idaho Independent Bank, which includes this branch at 401 W. Front St ...

First Interstate’s mission, both as a community bank and trusted financial partner, is to build on Great Western’s legacy of integrity, success and collaboration throughout the region.

BILLINGS, Mont., July 08, 2025--First Interstate BancSystem, Inc. (NASDAQ: FIBK), parent company of First Interstate Bank, will report second quarter results after the market closes on Tuesday ...