---
schema_version: "secwatch.filing_event.v1"
accession: "0000860413-26-000081"
form_type: "8-K"
ticker: "FIBK"
cik: "0000860413"
company_name: "FIRST INTERSTATE BANCSYSTEM INC"
filed_at: "2026-07-23T20:14:03+00:00"
generated_at: "2026-07-23T20:15:13.728274+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# First Interstate Q2 net income $83.9M ($0.87 EPS), up from $0.61 Q1; NIM expands to 3.45%

## Summary
- Net income $83.9M ($0.87 diluted EPS) vs $60.2M ($0.61) in Q1 2026 and $71.7M ($0.69) in Q2 2025.
- Net interest margin 3.45%, up 4bp QoQ and 15bp YoY; adjusted NIM (ex-accretion) 3.42%.
- Completed sale of 11 Nebraska branches with $19.5M gain; deposits down $441.7M (2%) QoQ.
- Repurchased 1.93M shares for $68.7M in Q2; board authorized additional $150M repurchase (total $450M).
- Criticized loans down $95.8M to $937.4M; net charge-offs $9.7M (0.27% annualized) vs $2.4M (0.06%) prior Q.

## SEC filing metadata
- accession: 0000860413-26-000081
- form_type: 8-K
- ticker: FIBK
- cik: 0000860413
- company_name: FIRST INTERSTATE BANCSYSTEM INC
- filed_at: 2026-07-23T20:14:03+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.02, 7.01, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/860413/000086041326000081/0000860413-26-000081-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/860413/000086041326000081/fibk-20260723.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000860413-26-000081
- JSON: https://secwatch.observer/filing/0000860413-26-000081.json
- Plain text: https://secwatch.observer/filing/0000860413-26-000081.txt

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