Institutional Ownership
Aon PLC
CUSIP G0403H108SHS CL AAONQ1 2026
13D / 13G Filings
10
Schedule 13D/13G on record
Beneficial Filers
4
Distinct reporting persons
Largest Stake
8.8%
Max % of class reported
Institutional Holders
1,231
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
10 filings · latest May 14, 2025
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | May 14, 2025 | Massachusetts Financial Services Company | 13G/A | 4.6% | 9.83M | SEC |
| 2 | Nov 13, 2024 | Capital World Investors | 13G | 5.6% | 12.14M | SEC |
| 3 | Feb 13, 2024 | Vanguard Group Inc | 13G/A | 8.8% | 17.60M | SEC |
| 4 | Feb 9, 2024 | Massachusetts Financial Services Co /Ma/ | 13G/A | 6.2% | 12.47M | SEC |
| 5 | Feb 9, 2023 | Vanguard Group Inc | 13G/A | 8.7% | 18.01M | SEC |
| 6 | Feb 8, 2023 | Massachusetts Financial Services Co /Ma/ | 13G/A | 7.6% | 15.70M | SEC |
| 7 | Feb 9, 2022 | Vanguard Group Inc | 13G/A | 7.6% | 16.72M | SEC |
| 8 | Feb 2, 2022 | Massachusetts Financial Services Co /Ma/ | 13G/A | 8.2% | 18.08M | SEC |
| 9 | Feb 11, 2021 | Massachusetts Financial Services Co /Ma/ | 13G/A | 8.8% | 20.20M | SEC |
| 10 | Feb 10, 2021 | Vanguard Group Inc | 13G/A | 7.7% | 17.60M | SEC |
Top Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Blackrock, Inc. | 16.15M | $5.21B |
| 2 | Capital World Investors | 11.48M | $3.70B |
| 3 | State Street Corp | 9.22M | $2.98B |
| 4 | Massachusetts Financial Services Co /Ma/ | 8.36M | $2.75B |
| 5 | Dodge & Cox | 8.12M | $2.62B |
| 6 | Morgan Stanley | 6.37M | $2.06B |
| 7 | Jpmorgan Chase & Co | 5.64M | $1.83B |
| 8 | Geode Capital Management, LLC | 5.24M | $1.69B |
| 9 | Bank Of New York Mellon Corp | 3.32M | $1.07B |
| 10 | Dz Bank AG Deutsche Zentral Genossenschafts Bank, Frankfurt Am Main | 2.95M | $951.69M |