AON Institutional Ownership
Top institutional (13F) holders of AON and activist (13D/G) positions, sourced from SEC EDGAR.
Institutional owners
48
Institutional value
$43.3B
Top holder
BlackRock, Inc.
Top holders
| Holder | Stake | Filed | Value |
|---|---|---|---|
| BlackRock, Inc.holding company | 7.4% | Aug 7, 2026 | $5.21B |
| Vanguard Capital Managementinvestment advisor | 6.4% | Aug 13, 2026 | $4.51B |
| JPMORGAN CHASE & COinvestment advisor | 5.7% | Aug 12, 2026 | $3.99B |
| Capital World Investorsinvestment advisor | 5.5% | Aug 12, 2026 | $3.88B |
| STATE STREET CORPORATIONinvestment advisor | 4.4% | Sep 22, 2026 | $3.12B |
| Dodge & Coxinvestment advisor | 4.0% | Aug 13, 2026 | $2.85B |
| Massachusetts Financial Services Companyinvestment advisor | 3.6% | Aug 3, 2026 | $2.58B |
| Vanguard Portfolio Managementinvestment advisor | 3.4% | Aug 13, 2026 | $2.39B |
| MORGAN STANLEYinvestment advisor | 2.9% | Aug 13, 2026 | $2.06B |
| GEODE CAPITAL MANAGEMENT, LLCinvestment advisor | 2.4% | Aug 12, 2026 | $1.71B |
| Bank of New York Mellon Corpholding company | 1.5% | Aug 6, 2026 | $1.06B |
| T. Rowe Price Associates, Inc.investment advisor | 1.5% | Aug 14, 2026 | $1.04B |
| Norges Bankother | 1.3% | Aug 12, 2026 | $927.66M |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIPinvestment advisor | 1.2% | Aug 13, 2026 | $867.29M |
| NORTHERN TRUST CORPinvestment advisor | 1.0% | Aug 13, 2026 | $676.82M |
| AQR CAPITAL MANAGEMENT LLCinvestment advisor | 0.9% | Aug 14, 2026 | $623.01M |
| GOLDMAN SACHS GROUP INCinvestment advisor | 0.8% | Aug 14, 2026 | $580.06M |
| Neuberger Berman Group LLCinvestment advisor | 0.8% | Aug 13, 2026 | $561.08M |
| BANK OF AMERICA CORP /DE/investment advisor | 0.8% | Aug 14, 2026 | $538.99M |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INCinvestment advisor | 0.6% | Aug 14, 2026 | $446.24M |
| Dimensional Fund Advisors LPinvestment advisor | 0.6% | Aug 11, 2026 | $411.46M |
| VIKING GLOBAL INVESTORS LPother | 0.5% | Aug 14, 2026 | $381.86M |
| Invesco Ltd.investment advisor | 0.5% | Aug 14, 2026 | $354.69M |
| UBS Group AGinvestment advisor | 0.4% | Aug 13, 2026 | $272.74M |
| Capital International Investorsinvestment advisor | 0.4% | Aug 12, 2026 | $263.06M |
Institutional ownership for companies related to AON
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Source: SEC EDGAR Schedule 13D / 13G and 13F filings.