Aon Ownership | Who Owns Aon?
Aon Ownership Summary
Aon is owned by 28.06% institutional investors, 3.05% insiders, and 68.89% retail investors. Vanguard group is the largest institutional shareholder, holding 9.24% of AON shares. Vanguard US Total Market Shares ETF is the top mutual fund, with 3.03% of its assets in Aon shares.
AON Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Aon | 28.06% | 3.05% | 68.89% |
| Sector | Financial Services Stocks | 36.95% | 15.48% | 47.58% |
| Industry | Insurance Brokers Stocks | 35.48% | 14.86% | 49.66% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Vanguard group | 19.98M | 9.24% | $7.12B |
| Blackrock | 15.27M | 7.67% | $4.48B |
| Blackrock funding, inc. /de | 15.85M | 7.33% | $5.65B |
| Capital world investors | 12.08M | 5.59% | $4.31B |
| State street | 9.23M | 4.27% | $3.29B |
| Massachusetts financial services co /ma/ | 8.76M | 4.05% | $3.12B |
| Morgan stanley | 6.14M | 2.84% | $2.19B |
| Geode capital management | 5.11M | 2.37% | $1.82B |
| Hps investment partners | 4.34M | 2.01% | $1.73B |
| Berkshire hathaway | 4.10M | 1.90% | $1.46B |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Hps investment partners | 4.34M | 99.01% | $1.73B |
| Lfl advisers | 90.15K | 11.13% | $32.14M |
| Fiducient advisors | 265.17K | 11.05% | $94.55M |
| Aryeh capital management | 32.30K | 9.64% | $11.52M |
| Altrinsic global advisors | 682.89K | 9.01% | $243.50M |
| Lts one management lp | 62.50K | 7.94% | $22.29M |
| Veritas asset management llp | 2.05M | 7.82% | $732.30M |
| Gluskin sheff & assoc | 169.77K | 7.65% | $60.54M |
| Bloombergsen | 283.08K | 6.26% | $100.94M |
| Broad run investment management | 106.62K | 6.22% | $38.02M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Dodge & cox | 3.46M | 0.67% | 3.46M |
| Norges bank | 1.66M | 0.08% | 1.66M |
| Viking global investors lp | 1.41M | 1.31% | 1.41M |
| Blackrock | 15.27M | 0.10% | 781.42K |
| Independent franchise partners llp | 2.10M | 4.93% | 615.57K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Morgan stanley | 6.14M | 0.13% | -3.33M |
| Jpmorgan chase | 3.35M | 0.07% | -1.35M |
| Meritage group lp | - | - | -996.21K |
| Artisan partners limited partnership | 1.27M | 0.64% | -909.27K |
| Mitsubishi ufj kokusai asset management | 1.82M | 0.47% | -883.46K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Dodge & cox | 3.46M | 0.67% | 3.46M | $1.24B |
| Norges bank | 1.66M | 0.08% | 1.66M | $596.67M |
| Viking global investors lp | 1.41M | 1.31% | 1.41M | $504.42M |
| Strive asset management | 400.99K | 0.02% | 400.99K | $35.30M |
| Point72 asset management | 182.05K | 0.11% | 182.05K | $64.92M |
Sold Out
| Holder | Change |
|---|---|
| Parallax volatility advisers | -1.00 |
| Continuum advisory | -2.00 |
| 1620 investment advisors | -2.00 |
| Sugar maple asset management | -2.00 |
| Creative capital management investments | -2.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Sep 30, 2025 | 709 | -43.42% | 60,661,564 | -68.68% | 28 | 0.35% | 328 | -38.23% | 216 | -54.43% |
| Jun 30, 2025 | 1,235 | -4.78% | 193,497,392 | 1.13% | 89 | 1.15% | 525 | -16.67% | 471 | 18.94% |
| Mar 31, 2025 | 15 | -98.77% | 9,379,098 | -95.10% | 4 | 0.06% | 7 | -98.72% | 2 | -99.51% |
| Dec 31, 2024 | 1,172 | -0.17% | 191,156,351 | 1.25% | 88 | 1.17% | 522 | -3.15% | 400 | 7.82% |
| Sep 30, 2024 | 1,157 | 3.21% | 188,322,679 | 0.00% | 86 | 1.10% | 533 | 1.33% | 366 | -1.88% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| Vanguard US Total Market Shares ETF | 6.54M | 3.03% | -4.77K |
| Vanguard Total Stock Mkt Idx Inv | 6.45M | 2.99% | -149.75K |
| Vanguard Institutional 500 Index Trust | 6.15M | 2.85% | 44.02K |
| Vanguard 500 Index Investor | 5.35M | 2.48% | -783.42K |
| American Funds American Balanced A | 3.11M | 1.44% | - |
| MFS Large Cap Value Equity | 2.91M | 1.35% | -99.38K |
| MFS Value A | 2.89M | 1.34% | -16.91K |
| Fidelity 500 Index | 2.74M | 1.27% | 1.17K |
| SPDR® S&P 500 ETF | 2.69M | 1.25% | -39.37K |
| SPDR® S&P 500® ETF Trust | 2.62M | 1.21% | -13.72K |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Nov 05, 2025 | Zeidel Darren | General Counsel | Sell | $424.56K |
| Nov 05, 2025 | Zeidel Darren | General Counsel | Sell | $2.61M |
| Nov 27, 2024 | Simon Mindy F. | Chief Operating Officer | Sell | $256.32K |
| Nov 26, 2024 | Stevens Lisa | Chief Administrative Officer | Sell | $494.29K |
| Aug 28, 2024 | Spruell Byron | - | Buy | $246.56K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2026 Q1 | - | - |
| 2025 Q1 | - | - |
| 2024 Q4 | - | 2 |
| 2024 Q3 | 1 | 3 |
| 2024 Q2 | 6 | - |
AON Ownership FAQ
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