---
schema_version: "secwatch.filing_event.v1"
accession: "0000860413-25-000129"
form_type: "8-K"
ticker: "FIBK"
cik: "0000860413"
company_name: "FIRST INTERSTATE BANCSYSTEM INC"
filed_at: "2025-08-28T23:59:59+00:00"
generated_at: "2026-05-17T09:35:19.233742+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Board approves $150M stock repurchase program through March 2027

## Summary
- Authorizes repurchase of up to $150 million of common stock on or before March 31, 2027.
- As of July 31, 2025, 104.86 million shares outstanding; closing price $32.20 on Aug 27.
- Repurchases may be made via open market, private transactions, block trades, or Rule 10b5-1 plans.
- Program may be suspended, terminated, or modified at any time; no obligation to repurchase any shares.

## SEC filing metadata
- accession: 0000860413-25-000129
- form_type: 8-K
- ticker: FIBK
- cik: 0000860413
- company_name: FIRST INTERSTATE BANCSYSTEM INC
- filed_at: 2025-08-28T23:59:59+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/860413/000086041325000129/0000860413-25-000129-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/860413/000086041325000129/fibk-20250828.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000860413-25-000129
- JSON: https://secwatch.observer/filing/0000860413-25-000129.json
- Plain text: https://secwatch.observer/filing/0000860413-25-000129.txt

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