Aon plc 13F holders
Of the 44 funds followed here, 10 reported a position in Aon plc in a 13F for the quarter ended 30 June 2026. The largest: Dodge & Cox, 8.6 million shares worth $2.85 billion, 1.5% of its reported book. Sold out: Renaissance Technologies, Point72 Asset Management.
| Fund | Shares | Value | Of its book | Change on the quarter | Status | Quarter ended | Filing |
|---|---|---|---|---|---|---|---|
| Dodge & Cox | 8,593,144 | $2.85 billion | 1.5% | +477,049 | added | 30 June 2026 | 13F |
| Geode Capital Management | 5,180,553 | $1.71 billion | 0.1% | -63,756 | trimmed | 30 June 2026 | 13F |
| Norges Bank | 2,796,760 | $927.7 million | 0.1% | held | 30 June 2026 | 13F | |
| Viking Global Investors | 1,151,269 | $381.9 million | 1.1% | +64,155 | added | 30 June 2026 | 13F |
| FMR LLC | 551,367 | $182.9 million | 0.0% | +28,183 | added | 30 June 2026 | 13F |
| Millennium Management | 343,998 | $114.1 million | 0.0% | +287,322 | added | 30 June 2026 | 13F |
| Citadel Advisors | 171,669 | $56.9 million | 0.0% | +38,769 | added | 30 June 2026 | 13F |
| Alyeska | 42,695 | $14.2 million | 0.0% | -19,035 | trimmed | 30 June 2026 | 13F |
| Bridgewater Associates | 15,663 | $5.2 million | 0.0% | -4,556 | trimmed | 30 June 2026 | 13F |
| Two Sigma Investments | 6,297 | $2.1 million | 0.0% | -13,240 | trimmed | 30 June 2026 | 13F |
| Renaissance Technologies | 0 | $0 | 0.0% | -11,601 | exited | 30 June 2026 | 13F |
| Point72 Asset Management | 0 | $0 | 0.0% | -33,297 | exited | 30 June 2026 | 13F |
Value is what the fund reported. Change is shares against the fund's previous 13F; a fund with one filing read shows no change. 13Fs cover long US positions of managers above $100 million and are filed up to 45 days after the quarter.
Schedule 13D and 13G filed on the name, last twelve months
| Filed | Schedule | Who | Holding | Of the class | Event date | Rule or purpose | Filing |
|---|---|---|---|---|---|---|---|
| 16 July 2026 | 13G | Jpmorgan Chase & Co and 1 other | 12.2 million | 5.6% | 30 June 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 29 April 2026 | 13G | Vanguard Capital Management and 1 other | 15.7 million | 7.3% | 31 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 26 March 2026 | 13G/A | The Vanguard Group and 1 other | 0 | 0.0% | 13 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
A Schedule 13D is filed by anyone who crosses 5% of a class with intent to influence; a 13G by a passive holder. Amendments (/A) report a change, including an exit to zero. Holding and percentage are as the filer stated them on the cover page; the purpose is the filer's own words, cut short.
Fails to deliver
| Settlement date | Shares failed | Price | File |
|---|---|---|---|
| 28 August 2026 | 16 | $349.56 | SEC |
| 17 August 2026 | 30 | $355.83 | SEC |
| 10 August 2026 | 59 | $358.30 | SEC |
| 6 August 2026 | 7,520 | $359.97 | SEC |
| 29 July 2026 | 920 | $381.26 | SEC |
| 28 July 2026 | 1,202 | $367.17 | SEC |
Shares that failed to deliver at settlement, per day, from the SEC's half-month files, which arrive about two weeks after the period. Largest in the window: 7,520 on 6 August 2026. A fail is an operational fact about settlement, not a position.
Source
Each fund's 13F-HR on EDGAR, linked per row; positions matched to AON by CUSIP from the SEC's own fails-to-deliver files; Schedule 13D and 13G from the company's own filing index, each read to confirm the company is the issuer named.
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