---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-053530"
form_type: "8-K"
ticker: "AON"
cik: "0000315293"
company_name: "Aon plc"
filed_at: "2025-03-13T23:59:59+00:00"
generated_at: "2026-05-24T21:42:27.069933+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.35
calibrated_materiality_score: 0.35
confidence: "high"
source: SEC EDGAR
---

# Aon CAO Michael Neller to become Deputy Global CPO; search for successor begins

## Summary
- Michael Neller transitions from Chief Accounting Officer & Global Controller to Deputy Global Chief People Officer, Total Rewards and Talent Development.
- Aon will conduct a search for a new Chief Accounting Officer and Global Controller.
- Neller will remain in his current role until a successor is appointed.
- Transition effective March 13, 2025.

## SEC filing metadata
- accession: 0001193125-25-053530
- form_type: 8-K
- ticker: AON
- cik: 0000315293
- company_name: Aon plc
- filed_at: 2025-03-13T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.35
- calibrated_materiality_score: 0.35
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/315293/000119312525053530/0001193125-25-053530-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/315293/000119312525053530/d892037d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-053530
- JSON: https://secwatch.observer/filing/0001193125-25-053530.json
- Plain text: https://secwatch.observer/filing/0001193125-25-053530.txt

## Key facts
- Executive change
  Michael Neller changed role as Deputy Global Chief People Officer, Total Rewards and Talent Development at Aon plc.
  - Action: transition
  - Role: Deputy Global Chief People Officer, Total Rewards and Talent Development
  source text: On March 13, 2025, Aon plc (the “Company”) announced that Michael Neller will transition from his role as Chief Accounting Officer and Global Controller of the Company into a new role as Deputy Global Chief People Officer, Total Rewards and Talent Development of the Company.
  evidence_url: https://www.sec.gov/Archives/edgar/data/315293/000119312525053530/0001193125-25-053530-index.htm

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