Aon (AON)
Brokers commercial insurance and reinsurance while advising employers on health, talent and retirement.
$286.10
After hours+0.08 (+0.03%)
At close$286.02(−1.65%)
Something off on this page? Send us feedback.
13F · 13D/G · Form 4
| Institutions | 91.49% | 194.07M shares | |
|---|---|---|---|
| 1,288 holders · as of Jun 30, 2026 | |||
| Insiders | 0.81% | 1.71M shares | |
| 23 holders · as of Sep 3, 2026 | |||
| Other | 7.70% | 16.34M shares | |
| remainder | |||
212.13M company shares as of Sep 22, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing
13F, as of Jun 30, 2026
1,288 holders · 194.07M shares · 139 new positions · 607 increased · 462 reduced · 134 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 15.72M | 7.41% | −432.1K | Aug 7, 2026 |
| Vanguard Capital Management LLC | 13.60M | 6.41% | +21.7K | Aug 13, 2026 |
| JPMorgan Chase & Co | 12.18M | 5.74% | +6.53M | Aug 12, 2026 |
| Capital World Investors | 11.71M | 5.52% | +233.9K | Aug 12, 2026 |
| State Street Corp | 9.42M | 4.44% | +196.3K | Aug 7, 2026 |
| Dodge & Cox | 8.59M | 4.05% | +477.0K | Aug 13, 2026 |
| Massachusetts Financial Services Co /MA/ | 7.62M | 3.59% | −742.7K | Aug 3, 2026 |
| Vanguard Portfolio Management LLC | 7.20M | 3.40% | +2.64M | Aug 13, 2026 |
13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| Vanguard Capital Management | 7.32% | 15.69M | 13G | Apr 29, 2026 |
| JPMorgan Chase & Co | 5.60% | 12.17M | 13G | Jul 16, 2026 |
| Capital World Investors | 5.60% | 13G | Nov 13, 2024 |
Form 4
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Sep 2, 2026 | Lester B. Knightdirector | Purchase · 6 lots | 20,000 | $327.48 | 163,000 |
| Jul 28, 2026 | Darren Zeidelofficer: General Counsel | Sale · 3 lots | 1,900 | $377.76 | 11,504 |
| Jul 17, 2026 | Darren Zeidelofficer: General Counsel | Sale · 3 lots | 1,950 | $372.05 | 13,404 |
| Jul 7, 2026 | Darren Zeidelofficer: General Counsel | Sale | 600 | $360.00 | 15,354 |
| Feb 26, 2026 | Darren Zeidelofficer: General Counsel | Sale | 4,300 | $329.72 | 15,954 |
| Feb 17, 2026 | Darren Zeidelofficer: General Counsel | Sale | 5,040 | $325.79 | 20,254 |
| Feb 10, 2026 | Lester B. Knightdirector | Purchase | 4,000 | $319.24 | 143,000 |
| Nov 5, 2025 | Darren Zeidelofficer: General Counsel | Sale · 2 lots | 8,800 | $344.52 | 20,253 |
House and Senate disclosures
| Member | Type | Amount | Owner | Traded | Disclosed |
|---|---|---|---|---|---|
| Rep. Michael McCaul · TX10 | Sale | $15,001 – $50,000 | Spouse | Apr 6, 2026 | May 11, 2026 |
| Rep. Michael McCaul · TX10 | Sale | $15,001 – $50,000 | Spouse | Mar 25, 2026 | Apr 10, 2026 |
| Rep. Michael McCaul · TX10 | Sale | $15,001 – $50,000 | Spouse | Mar 12, 2026 | Apr 10, 2026 |
| Rep. Michael McCaul · TX10 | Sale | $15,001 – $50,000 | Spouse | Mar 4, 2026 | Apr 10, 2026 |