First Interstate BancSystem Appoints Chief Operations Officer Jeff Lee

What Happened
First Interstate BancSystem, Inc. (FIBK) filed an 8‑K (Item 5.02) on August 21, 2026, announcing the appointment of Jeff Lee as Executive Vice President and Chief Operations Officer for the company and its subsidiary First Interstate Bank. His employment is expected to begin formally on September 14, 2026, and the filing was signed by President & CEO James A. Reuter.

Key Details

• Initial annual base salary: $480,000.
• Long-term incentive: time-based restricted stock units with an aggregate grant date value of $200,000; vesting in three equal annual installments beginning September 14, 2027, subject to continued employment.
• Employment Agreement: expected one‑year initial term with automatic one‑year renewals unless 90 days’ notice of non‑renewal is given; agreement to be finalized and filed when executed.
• Background: Mr. Lee, age 57, has 20+ years in banking operations, technology and digital roles (notably Seacoast Banking Corporation of Florida, 2013–Jan 2024) and served as an independent consultant March–Nov 2025. No family relationships or related‑party transactions reported.

Why It Matters
This is a material executive change (Item 5.02) that affects First Interstate’s senior operations and technology leadership. Investors should note the compensation structure (base pay plus equity and incentive participation) and the vesting timetable for the RSUs, which align Mr. Lee’s incentives with multi‑year retention. The formal Employment Agreement will provide complete terms once filed; investors may want to review that document when it becomes available. The filing also includes the company’s standard forward‑looking statement cautions.