secwatch.observer — SEC 8-K summary
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Issuer:     FIRST INTERSTATE BANCSYSTEM INC (FIBK)
CIK:        0000860413
Form:       8-K
Filed at:   2026-05-13T21:12:56+00:00
Accession:  0000860413-26-000041
Event type: leadership
Sentiment:  neutral
Materiality: 0.60
Item codes: 5.02, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

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

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/860413/000086041326000041/0000860413-26-000041-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/860413/000086041326000041/fibk-20260511.htm
  HTML page:      https://secwatch.observer/filing/0000860413-26-000041

License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer