First Interstate BancSystem updates financial calendar with quarterly earnings release, investor call

• First Interstate BancSystem will release third-quarter results on Oct. 22, 2026, following the market close.
• Investor conference call set for Oct. 23, 2026 at 9:30 a.m. ET to discuss results, followed by Q&A.
• Webcast available via www.FIBK.com; replay at https://events.q4inc.com/attendee/160448756y.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. First Interstate BancSystem Inc. published the original content used to generate this news brief via Business Wire (Ref. ID: 20261005394325) on October 05, 2026, and is solely responsible for the information contained therein.