First Interstate BancSystem completed the merger with Great Western Bancorp in a $2bn deal.

First Interstate BancSystem, a financial holding company, completed the merger with Great Western Bancorp, a regional bank, in a $2bn deal. “We’re excited to join forces, and confident that both companies’ stakeholders will benefit from this partnership. We’ll be able to offer customers access to additional branch locations and new products and services, provide new growth and professional development opportunities to our employees, deliver additional returns to our shareholders, and have an even greater impact on our communities," Mark Borrecco, GWB President and CEO. On January 20, 2022, First Interstate BancSystem and Great Western Bancorp received final regulatory and shareholder approvals to merge.