---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-258573"
form_type: "8-K"
ticker: "AON"
cik: "0000315293"
company_name: "Aon plc"
filed_at: "2025-10-30T23:59:59+00:00"
generated_at: "2026-05-17T01:27:04.277777+00:00"
event_type: "m_and_a"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Aon closes sale of majority of wealth businesses to Madison Dearborn Partners

## Summary
- Transaction closed on October 30, 2025; previously announced on September 3, 2025.
- Businesses sold include Wealthspire Advisors, Fiducient Advisors, Newport Private Wealth and related platforms.
- Buyer is Madison Dearborn Partners; sale represents a significant majority of Aon's wealth businesses.
- No financial terms or impact were disclosed in the filing.

## SEC filing metadata
- accession: 0001193125-25-258573
- form_type: 8-K
- ticker: AON
- cik: 0000315293
- company_name: Aon plc
- filed_at: 2025-10-30T23:59:59+00:00
- event_type: m_and_a
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 7.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/315293/000119312525258573/0001193125-25-258573-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/315293/000119312525258573/d924675d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-258573
- JSON: https://secwatch.observer/filing/0001193125-25-258573.json
- Plain text: https://secwatch.observer/filing/0001193125-25-258573.txt

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