secwatch.observer — SEC 8-K summary
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Issuer:     FIRST INTERSTATE BANCSYSTEM INC (FIBK)
CIK:        0000860413
Form:       8-K
Filed at:   2026-08-21T13:20:20+00:00
Accession:  0000860413-26-000088
Event type: leadership
Sentiment:  neutral
Materiality: 0.35
Item codes: 5.02, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

First Interstate Bancsystem appoints Jeff Lee as EVP and COO effective Sept 14, 2026
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- Jeff Lee, 57, named EVP and Chief Operations Officer of FIBK and First Interstate Bank, starting Sept 14, 2026.
- Initial annual base salary set at $480,000; RSU grant of $200,000 vesting in three equal annual installments from Sept 2027.
- Lee brings 20+ years banking ops/tech experience; previously COO/CTO at Seacoast Banking Corp (SBCF) from 2021-2024.
- Employment agreement initial one-year term with automatic renewal unless terminated 90 days prior.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/860413/000086041326000088/0000860413-26-000088-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/860413/000086041326000088/fibk-20260821.htm
  HTML page:      https://secwatch.observer/filing/0000860413-26-000088

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