Aon plc
AON- Exchange
- NYSE
- Industry
- Insurance Agents, Brokers & Service
- SEC CIK
- 0000315293
In the last 90 days, Aon plc insiders filed 1 open-market purchase and 3 sales; 1,273 institutions reported holding it in 13F filings for Q2 2026, worth $63.9B in total; 4 superinvestors hold it, including Viking Global Investors and Baupost Group.
13F holders, Q1 2021
Institutional positions in Aon plc as of Mar 31, 2021. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 919
- No complete 13F data for Q4 2020
- Shares held
- 223.5M
- No complete 13F data for Q4 2020
- Total value
- $51.4B
- No complete 13F data for Q4 2020
Holders and value by quarter
Institutions reporting AON on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 1,273 | $63.9B |
| Q1 2026 | 1,266 | $60.6B |
| Q4 2025 | 1,289 | $66.7B |
| Q3 2025 | 1,255 | $66.3B |
| Q2 2025 | 1,233 | $69.3B |
| Q1 2025 | 1,276 | $77.1B |
| Q4 2024 | 1,196 | $69.1B |
| Q3 2024 | 1,149 | $66.1B |
| Q2 2024 | 1,111 | $55.4B |
| Q1 2024 | 1,087 | $57.4B |
| Q4 2023 | 1,067 | $49.8B |
| Q3 2023 | 1,049 | $56.4B |
| Q2 2023 | 1,025 | $61.2B |
| Q1 2023 | 1,014 | $55.7B |
| Q4 2022 | 1,034 | $52.6B |
| Q3 2022 | 950 | $48.4B |
| Q2 2022 | 966 | $49.5B |
| Q1 2022 | 985 | $61.2B |
| Q4 2021 | 995 | $56.5B |
| Q3 2021 | 917 | $57.2B |
| Q2 2021 | 912 | $53.4B |
| Q1 2021 | 919 | $51.4B |
Institutions, Q1 2021
Shares, value and share of portfolio for each institution holding Aon plc.
Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Artisan Partners Limited Partnership | 2,391,795 | $550.4M | 0.71% | – | – |
| Farallon Capital Management, L.L.C. | 2,454,194 | $564.7M | 2.94% | – | – |
| Northern Trust Corp | 2,873,210 | $661.2M | 0.12% | – | – |
| Bank of America Corp | 2,878,569 | $662.4M | 0.08% | – | – |
| Independent Franchise Partners LLP | 3,390,261 | $780.1M | 6.21% | – | – |
| Geode Capital Management, LLC | 3,586,447 | $822.9M | 0.13% | – | – |
| Longview Partners (Guernsey) LTD | 3,656,651 | $841.4M | 4.47% | – | – |
| Neuberger Berman Group LLC | 4,014,679 | $923.5M | 0.88% | – | – |
| Berkshire Hathaway IncSuperinvestorBerkshire Hathaway | 4,096,146 | $942.6M | 0.35% | – | – |
| WCM Investment Management, LLC | 4,556,107 | $1.05B | 2.87% | – | – |
| Janus Henderson Group PLC | 4,826,680 | $1.11B | 0.51% | – | – |
| Mawer Investment Management Ltd. | 5,836,834 | $1.34B | 7.29% | – | – |
| Lazard Asset Management LLC | 5,939,591 | $1.37B | 1.66% | – | – |
| Eagle Capital Management LLC | 6,599,476 | $1.52B | 4.68% | – | – |
| Capital International Investors | 8,838,427 | $2.03B | 0.51% | – | – |
| State Street Corp | 9,280,319 | $2.14B | 0.12% | – | – |
| BlackRock Inc. | 17,067,458 | $3.93B | 0.12% | – | – |
| Vanguard Group Inc | 17,439,617 | $4.01B | 0.11% | – | – |
| Massachusetts Financial Services Co | 19,666,670 | $4.53B | 1.39% | – | – |