AON (AON) Held by Superinvestors
Aon Plc (AON) is currently held by 11 superinvestors tracked by InsiderSet, with a combined reported market value of approximately $3.78B based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Dodge & Cox Stock Fund is currently the largest disclosed institutional shareholder of AON tracked by InsiderSet, reporting ownership valued at approximately $2.85B in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $2.64B, representing an estimated loss of -7.50% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 100% of the total disclosed AON value among the investors covered in this analysis. Major shareholders include Dodge & Cox Stock Fund, Viking Global Investors, Baupost Group, and several other long-term asset managers with concentrated positions in Aon Plc (AON).
This page ranks the largest institutional AON shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Dodge & Cox Stock Fund | V. D. Dodge, E. M. Cox | 1.49% | 8,593,144 | $2,850,259,933 | $2,636,376,579 | -$213,883,354 | -7.50% |
| Viking Global Investors | Ole Andreas Halvorsen | 1.09% | 1,151,269 | $381,864,415 | $353,209,329 | -$28,655,086 | -7.50% |
| Baupost Group | Seth Klarman | 4.21% | 687,000 | $227,871,000 | $210,771,600 | -$17,099,400 | -7.50% |
| Meritage Group | Nathaniel Simons | 8.75% | 684,518 | $227,047,775 | $210,010,122 | -$17,037,653 | -7.50% |
| Polen Capital Management | David M. Polen | 0.47% | 164,035 | $54,408,954 | $50,325,938 | -$4,083,016 | -7.50% |
| Eagle Capital Management | Ravenel Boykin Curry IV | 0.05% | 44,973 | $14,917,031 | $13,797,716 | -$1,119,315 | -7.50% |
| Jensen Investment Management | Eric H. Schoenstein | 0.21% | 25,789 | $8,553,953 | $7,912,065 | -$641,888 | -7.50% |
| Sequoia Financial Advisors | 0.03% | 17,646 | $5,853,137 | $5,413,793 | -$439,344 | -7.51% | |
| Yacktman Asset Management | Donald Yacktman | 0.05% | 12,915 | $4,283,776 | $3,962,322 | -$321,454 | -7.50% |
| Cullen Value Fund | Jim Cullen | 0.32% | 10,046 | $2,760,375 | $3,082,113 | +$321,738 | +11.66% |
| Lountzis Asset Management | Paul Lountzis | 0.20% | 1,900 | $630,211 | $582,920 | -$47,291 | -7.50% |
Frequently asked questions about AON
Who are the largest superinvestors holding AON?
The largest superinvestors holding AON in the latest SEC Form 13F filings include Dodge & Cox Stock Fund, Viking Global Investors, Baupost Group, Meritage Group, and Polen Capital Management. InsiderSet ranks these superinvestors by their latest reported AON position.
What does the AON superinvestors page include?
This page tracks AON positions reported by a curated group of notable institutional investors and fund managers through SEC Form 13F. Aon Plc (AON) on this page reflects disclosed 13F holdings among those superinvestors, not every institutional shareholder of the stock.
How many superinvestors hold AON?
InsiderSet currently tracks 11 superinvestors reporting AON holdings in the latest available 13F data. This is the curated set on this page, not the total number of institutions that own AON.
How much AON stock do superinvestors hold?
Superinvestors tracked by InsiderSet disclosed approximately $3.78B in AON holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value, and it covers the curated superinvestors on this page rather than every institutional filer.
When were AON superinvestor holdings last updated?
The latest AON superinvestor holdings on InsiderSet are based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time holdings.
Are superinvestor AON holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by these superinvestors as of the end of the reporting quarter. A superinvestor may have changed its AON position after the reporting date.
Are superinvestors buying or selling AON?
Buying and selling can be analyzed by comparing AON positions across consecutive 13F reporting periods. InsiderSet's AON Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View AON ownership changes.
How have superinvestor AON holdings changed over time?
InsiderSet tracks AON holdings among these superinvestors across multiple 13F reporting periods, so holder counts, reported value, and reported shares can be compared over time.