---
schema_version: "secwatch.filing_event.v1"
accession: "0000860413-26-000007"
form_type: "8-K"
ticker: "FIBK"
cik: "0000860413"
company_name: "FIRST INTERSTATE BANCSYSTEM INC"
filed_at: "2026-01-28T23:59:59+00:00"
generated_at: "2026-05-16T07:16:02.586017+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# First Interstate Q4 net income $108.8M ($1.08 EPS) vs $52.1M a year ago; board ups buyback to $300M

## Summary
- Net income $108.8M ($1.08 diluted EPS) vs $71.4M ($0.69) Q3 2025 and $52.1M ($0.50) Q4 2024.
- Includes $62.7M gain from sale of Arizona/Kansas branches; net interest margin rose to 3.36% from 3.18% YoY.
- Non-performing assets fell 25.5% to $138.3M; criticized loans declined $112.3M to $1,051.8M.
- Net charge-offs jumped to $22.1M (0.56% annualized) from $2.3M in Q3; CET1 ratio improved to 14.38%.
- Board authorized $150M additional share repurchase ($300M total); $117.6M repurchased through Dec 31, 2025.

## SEC filing metadata
- accession: 0000860413-26-000007
- form_type: 8-K
- ticker: FIBK
- cik: 0000860413
- company_name: FIRST INTERSTATE BANCSYSTEM INC
- filed_at: 2026-01-28T23:59:59+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/860413/000086041326000007/0000860413-26-000007-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/860413/000086041326000007/fibk-20260128.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000860413-26-000007
- JSON: https://secwatch.observer/filing/0000860413-26-000007.json
- Plain text: https://secwatch.observer/filing/0000860413-26-000007.txt

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