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AI brief of an SEC Form 8-K · First Interstate BancSystem (FIBK)

First Interstate BancSystem ends COO Kristina Robbins' role, moves her to CEO advisor

Neutral Impact 4 of 5 leadership Written later

First Interstate BancSystem said its Executive Vice President and Chief Operations Officer, Kristina Robbins, was terminated without cause effective immediately on May 11, 2026, and moved into an Executive Advisor role reporting to CEO James Reuter. The CEO is expected to handle COO duties until a successor is named, which matters to shareholders because the company's operations leadership is changing and no permanent replacement has been named in the filing.

Key points

  • Kristina Robbins' COO employment was terminated without cause, effective May 11, 2026 (announced that day).
  • Robbins will serve as Executive Advisor to CEO James Reuter, expected to end August 1, 2026, unless ended earlier.
  • CEO James Reuter is expected to perform COO duties until a successor is appointed; the filing names no successor.
  • Robbins will keep her current compensation and benefits during the advisory period under a Transition and Separation Agreement dated May 11, 2026.

The filing

CompanyFirst Interstate BancSystem (FIBK)
Form8-K, current report
Filed with the SECMay 13, 2026, 5:12 PM ET
Accession number0000860413-26-000041

Items reported: 5.02 Director / Officer Change

Read the filing on SEC.gov ↗

Written by AI (Anthropic Claude, claude-haiku-5-5) on Nov 8, 2026, 1:38 AM ET, from the text of the filing and its press-release exhibits only. Written later: this filing was briefed after the fact, when past filings were added to the site, so the brief may be read with hindsight; the filing itself is the record of what was known on May 13, 2026.

Briefs are written by AI from the filing text (each brief's own page names the model) and can contain mistakes — open the filing before acting on anything. Impact (1-5) and tone are the model's reading of the filing for shareholders, not a price forecast. Not investment advice.