secwatch.observer — SEC 8-K summary
======================================

Issuer:     FIRST INTERSTATE BANCSYSTEM INC (FIBK)
CIK:        0000860413
Form:       8-K
Filed at:   2025-10-16T23:59:59+00:00
Accession:  0000860413-25-000155
Event type: other_material
Sentiment:  neutral
Materiality: 0.60
Item codes: 7.01, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

First Interstate selling 11 Nebraska branches to Security First; ~$280M deposits, ~$70M loans
--------------------------------------------------------------------------------

- Security First Bank acquiring 11 Nebraska branches from First Interstate Bank under purchase and assumption agreement.
- Branches had ~$280M in deposits and ~$70M in outstanding loans as of Sept. 30, 2025.
- Transaction subject to regulatory approval; expected to close in early 2026.
- First Interstate cites opportunity to redeploy capital toward stronger markets.
- Security First will expand to 34 full-service Nebraska branches post-acquisition.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/860413/000086041325000155/0000860413-25-000155-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/860413/000086041325000155/fibk-20251016.htm
  HTML page:      https://secwatch.observer/filing/0000860413-25-000155

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