---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-23-112981"
form_type: "8-K"
ticker: "ONB"
cik: "0000707179"
company_name: "OLD NATIONAL BANCORP /IN/"
filed_at: "2023-10-31T23:59:59+00:00"
generated_at: "2026-06-09T05:07:27.829332+00:00"
event_type: "m_and_a"
sentiment: "neutral"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Old National Bancorp to acquire CapStar Financial Holdings; exchange ratio 1.155 ONB shares per CapStar share

## Summary
- CapStar shareholders receive 1.155 ONB shares per CapStar share; no cash consideration except for fractional shares.
- CapStar termination fee of $11.25 million payable under certain circumstances following a superior proposal or board withdrawal.
- CapStar directors and an executive officer entered Voting Agreements to vote shares in favor of the merger.
- Conditions include CapStar shareholder approval, regulatory approvals, Form S-4 effectiveness, and no material adverse effect.
- Both boards unanimously approved the merger; closing subject to customary conditions.

## SEC filing metadata
- accession: 0001104659-23-112981
- form_type: 8-K
- ticker: ONB
- cik: 0000707179
- company_name: OLD NATIONAL BANCORP /IN/
- filed_at: 2023-10-31T23:59:59+00:00
- event_type: m_and_a
- sentiment: neutral
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 1.01, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/707179/000110465923112981/0001104659-23-112981-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/707179/000110465923112981/tm2329233d4_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-23-112981
- JSON: https://secwatch.observer/filing/0001104659-23-112981.json
- Plain text: https://secwatch.observer/filing/0001104659-23-112981.txt

## Key facts
- Material Agreements
  OLD NATIONAL BANCORP /IN/ entered into Agreement and Plan of Merger with CapStar Financial Holdings, Inc. (effective 2023-10-26).
  - Action: entry
  - Agreement: merger
  - Counterparty: CapStar Financial Holdings, Inc.
  - Effective: 2023-10-26
  source text: On October 26, 2023, Old National Bancorp, an Indiana corporation (the “Company”), entered into an Agreement and Plan of Merger (the “Merger Agreement”) with CapStar Financial Holdings, Inc., a Tennessee corporation (“CapStar”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/707179/000110465923112981/0001104659-23-112981-index.htm

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