secwatch.observer — SEC 8-K summary
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Issuer:     FIRST INTERSTATE BANCSYSTEM INC (FIBK)
CIK:        0000860413
Form:       8-K
Filed at:   2026-04-29T23:59:59+00:00
Accession:  0000860413-26-000034
Event type: earnings
Sentiment:  neutral
Materiality: 0.75
Item codes: 2.02, 7.01, 8.01, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

First Interstate Q1 net income $60.2M ($0.61 EPS); NIM expands to 3.41%; share repurchase $84M
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- Net income $60.2M ($0.61 diluted EPS) vs $108.8M ($1.08) in Q4 2025, which included $62.7M branch sale gain; YoY up from $50.2M ($0.49).
- Net interest margin 3.41%, up 5 bps QoQ and 22 bps YoY; net interest income $200.7M.
- Net charge-offs fell to $2.4M (0.06% annualized) from $22.1M (0.56%) in Q4 2025.
- Repurchased 2.39M shares for ~$84M in Q1; board authorized additional $150M (total $300M).
- Non-performing assets rose 17.5% to $162.5M; criticized loans down $18.6M to $1.03B.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/860413/000086041326000034/0000860413-26-000034-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/860413/000086041326000034/fibk-20260429.htm
  HTML page:      https://secwatch.observer/filing/0000860413-26-000034

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