---
schema_version: "secwatch.filing_event.v1"
accession: "0000860413-26-000041"
form_type: "8-K"
ticker: "FIBK"
cik: "0000860413"
company_name: "FIRST INTERSTATE BANCSYSTEM INC"
filed_at: "2026-05-13T21:12:56+00:00"
generated_at: "2026-05-13T21:17:13.757271+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# First Interstate COO Kristina Robbins terminated without cause; transitions to advisor role through Aug 2026

## Summary
- COO Kristina Robbins terminated without cause effective May 11, 2026; CEO James Reuter will assume COO duties until a successor is appointed.
- Robbins will serve as Executive Advisor to CEO through August 1, 2026, assisting with COO transition and strategic initiatives.
- During advisor period, Robbins retains current base salary, benefits, and accrues vacation; separation benefits contingent on not being terminated for cause.
- Separation benefits include 12 months pay equal to 1x base salary plus 1x average of prior 3 years annual incentive, plus 12 months health coverage.

## SEC filing metadata
- accession: 0000860413-26-000041
- form_type: 8-K
- ticker: FIBK
- cik: 0000860413
- company_name: FIRST INTERSTATE BANCSYSTEM INC
- filed_at: 2026-05-13T21:12:56+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/860413/000086041326000041/0000860413-26-000041-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/860413/000086041326000041/fibk-20260511.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000860413-26-000041
- JSON: https://secwatch.observer/filing/0000860413-26-000041.json
- Plain text: https://secwatch.observer/filing/0000860413-26-000041.txt

## Key facts
- Executive change
  Kristina Robbins changed role as Executive Advisor to the Chief Executive Officer at FIRST INTERSTATE BANCSYSTEM INC.
  - Action: transitioned
  - Role: Executive Advisor to the Chief Executive Officer
  source text: Ms. Robbins employment with the Company would be contemporaneously transitioned to a new role of Executive Advisor to the Company’s Chief Executive Officer, Mr. James Reuter (the “CEO”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/860413/000086041326000041/0000860413-26-000041-index.htm
- Executive change
  Kristina Robbins was terminated as Executive Vice President and Chief Operations Officer at FIRST INTERSTATE BANCSYSTEM INC.
  - Action: terminated
  - Role: Executive Vice President and Chief Operations Officer
  source text: On May 11, 2026, First Interstate BancSystem, Inc. (the “Company”) announced that the employment as Executive Vice President and Chief Operations Officer of the Company (“COO”) and its wholly owned bank subsidiary by Ms. Kristina Robbins was terminated, without cause, effective immediately
  evidence_url: https://www.sec.gov/Archives/edgar/data/860413/000086041326000041/0000860413-26-000041-index.htm
- Executive change
  James Reuter changed role as Chief Executive Officer (assumes COO responsibilities) at FIRST INTERSTATE BANCSYSTEM INC.
  - Action: assumed COO duties
  - Role: Chief Executive Officer (assumes COO responsibilities)
  source text: The Company’s CEO is expected to fulfill the COO responsibilities previously fulfilled by Ms. Robbins until a successor is appointed to such position.
  evidence_url: https://www.sec.gov/Archives/edgar/data/860413/000086041326000041/0000860413-26-000041-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.