AON - AON PLC
This page shows which of the focused investors we track hold AON and how their positions changed, so you can see how much conviction the group has in the stock.
In Q3 2025 it was held by 12 managers with an aggregate reported value of $4.89B, which is 0.43% of the combined portfolio.
As of Q3 2025, 12 tracked institutional managers held AON (AON PLC) with an aggregate reported value of $4.89B — 0.43% of the combined AlphaBaseline portfolio.
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- Source
- Curated SEC 13F filings
- Period
- Q3 2025
- Ticker
- AON
13F data is delayed and excludes shorts/non-13F assets.
Holders
| 1 | Warren Buffett - Berkshire Hathaway | 0.55% | - | 4,100,000 | $1.46B |
| 2 | Dodge & Cox - Dodge & Cox | 0.67% | New | 3,464,683 | $1.24B |
| 3 | Polen Capital Management - Polen Capital Management | 2.88% | Reduce -9.3% | 2,490,167 | $887.94M |
| 4 | Viking Global Investors - Viking Global Investors | 1.31% | New | 1,414,618 | $504.42M |
| 5 | William Von Mueffling - Cantillon Capital Management | 2.42% | Reduce -1.1% | 1,233,741 | $439.93M |
| 6 | First Pacific Advisors - First Pacific Advisors | 3.23% | Add +0.4% | 654,445 | $233.36M |
| 7 | Wallace Weitz - Weitz Investment Management | 4.13% | - | 213,450 | $76.11M |
| 8 | Thomas Gayner - Markel Asset Management | 0.38% | - | 129,800 | $46.28M |
| 9 | Yacktman Asset Management - Yacktman Asset Management | 0.06% | - | 12,915 | $4.61M |
| 10 | Jensen Investment Management - Jensen Investment Management | 0.04% | Add +3.1% | 10,100 | $3.6M |
| 11 | Bill Nygren - Oakmark Funds | 0.00% | Add +0.7% | 704 | $251.03K |
| 12 | David Katz - Matrix Asset Advisors | 0.02% | - | 648 | $231.06K |
Loading holder history for AON…