---
schema_version: "secwatch.filing_event.v1"
accession: "0000868671-25-000097"
form_type: "8-K"
ticker: "GBCI"
cik: "0000868671"
company_name: "GLACIER BANCORP, INC."
filed_at: "2025-09-08T23:59:59+00:00"
generated_at: "2026-05-17T07:49:08.036018+00:00"
event_type: "m_and_a"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Glacier and Guaranty supplement merger proxy after shareholder demands; disclose earlier $525M offer from Company A

## Summary
- Seven demand letters from Guaranty shareholders alleged proxy omissions; Glacier/Guaranty deny claims but add supplemental disclosures.
- Company A's non-binding LOI proposed $525M all-cash transaction; Glacier's April 11 LOI valued Guaranty at ~$537M with 1.0x exchange ratio.
- KBW advised Guaranty; total fee estimated at ~$6.8M, with $650K payable upon opinion and balance contingent on closing.
- Glacier's EPS estimated to be accreted 7.4% (2026) and 7.7% (2027); tangible book value per share diluted by 0.6% at close.
- Special meeting of Guaranty shareholders set for Sept 17, 2025; merger consideration and timing unchanged.

## SEC filing metadata
- accession: 0000868671-25-000097
- form_type: 8-K
- ticker: GBCI
- cik: 0000868671
- company_name: GLACIER BANCORP, INC.
- filed_at: 2025-09-08T23:59:59+00:00
- event_type: m_and_a
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/868671/000086867125000097/0000868671-25-000097-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/868671/000086867125000097/gbci-20250908.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000868671-25-000097
- JSON: https://secwatch.observer/filing/0000868671-25-000097.json
- Plain text: https://secwatch.observer/filing/0000868671-25-000097.txt

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