Aon Ownership | Who Owns Aon?
Aon Ownership Summary
Aon is owned by 89.50% institutional investors, 3.04% insiders, and 7.46% retail investors. Vanguard group is the largest institutional shareholder, holding 8.98% 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 | 89.50% | 3.04% | 7.46% | 
| Sector | Financial Services Stocks | 51.64% | 15.54% | 32.82% | 
| Industry | Insurance Brokers Stocks | 57.11% | 14.13% | 28.77% | 
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value | 
|---|---|---|---|
| Vanguard group | 19.52M | 8.98% | $7.01B | 
| Blackrock | 15.27M | 7.67% | $4.48B | 
| Blackrock funding, inc. /de | 15.93M | 7.37% | $5.68B | 
| Capital world investors | 12.14M | 5.62% | $4.33B | 
| State street | 9.09M | 4.20% | $3.27B | 
| Massachusetts financial services co /ma/ | 8.95M | 4.14% | $3.19B | 
| Morgan stanley | 8.21M | 4.12% | $2.41B | 
| Jpmorgan chase | 5.36M | 2.46% | $1.92B | 
| Geode capital management | 4.95M | 2.28% | $1.77B | 
| Hps investment partners | 4.34M | 2.01% | $1.73B | 
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value | 
|---|---|---|---|
| Hps investment partners | 4.34M | 99.01% | $1.73B | 
| Fiducient advisors | 351.44K | 15.59% | $126.22M | 
| Lfl advisers | 87.53K | 12.48% | $31.23M | 
| Altrinsic global advisors | 692.63K | 8.95% | $247.10M | 
| Lts one management lp | 75.00K | 7.51% | $26.94M | 
| Aryeh capital management | 25.40K | 7.10% | $9.06M | 
| Gluskin sheff & assoc | 157.39K | 6.85% | $56.15M | 
| Prana capital management, lp | 517.51K | 6.58% | $184.63M | 
| Gfi investment counsel | 166.61K | 6.48% | $59.44M | 
| Bloombergsen | 286.03K | 6.26% | $102.04M | 
Top Buyers
| Holder | Shares | % Assets | Change | 
|---|---|---|---|
| Norges bank | 1.66M | 0.08% | 1.66M | 
| Morgan stanley | 8.21M | 0.19% | 990.90K | 
| Blackrock funding, inc. /de | 15.93M | 0.11% | 831.48K | 
| Blackrock | 15.27M | 0.10% | 781.42K | 
| Geode capital management | 4.95M | 0.14% | 627.74K | 
Top Sellers
| Holder | Shares | % Assets | Change | 
|---|---|---|---|
| Dz bank ag deutsche zentral genossenschafts bank, frankfurt am main | 57.88K | 0.02% | -1.41M | 
| Meritage group lp | - | - | -996.21K | 
| Massachusetts financial services co /ma/ | 8.95M | 1.01% | -880.32K | 
| Viking global investors lp | - | - | -720.36K | 
| Mackenzie financial | 683.56K | 0.32% | -652.74K | 
New Positions
| Holder | Shares | % Assets | Change | Value | 
|---|---|---|---|---|
| Norges bank | 1.66M | 0.08% | 1.66M | $596.67M | 
| Bnp paribas arbitrage, snc | 299.32K | 0.06% | 299.32K | $107.50M | 
| Bristol john w & co inc /ny/ | 249.54K | 1.44% | 249.54K | $89.03M | 
| Cryder capital partners llp | 231.31K | 4.65% | 231.31K | $82.52M | 
| Cercano management | 83.24K | 0.85% | 83.24K | $29.70M | 
Sold Out
| Holder | Change | 
|---|---|
| Parallax volatility advisers | -1.00 | 
| Continuum advisory | -2.00 | 
| Sugar maple asset management | -2.00 | 
| 1620 investment advisors | -2.00 | 
| Creative capital management investments | -2.00 | 
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % | 
|---|---|---|---|---|---|---|---|---|---|---|
| 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% | 
| Jun 30, 2024 | 1,106 | -0.27% | 188,142,739 | 10.77% | 94 | 1.30% | 518 | 4.23% | 368 | -8.46% | 
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 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 | 
| Aug 12, 2024 | Stevens Lisa | Chief Administrative Officer | Sell | $131.58K | 
| Aug 12, 2024 | Zeidel Darren | General Counsel | Sell | $312.69K | 
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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