Latticework
← All portfoliosLatticework shows what 76 well-known investors report to the SEC each quarter.

AON · Aon PLC · Form 13F filings for Q2 2026

Aon PLC

11 of 76 investors hold it

Together they reported $3.9 billion of it. In Q2 2026, 0 added and 3 reduced.

20 of 83 tracked investors have filed for Q3 2026 so far. The sheet and every stock page stay on Q2 2026 until most have filed, so each count is taken from one group of investors.

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Who added and who reduced

Q2 2026 against Q1 2026, among 74 filings that can be compared. An investor counts as adding or reducing when reported shares change by 20% or more, or when a position is opened or closed.

0added or opened

3reduced or sold out

William Von MuefflingSold outPolen Capital Management−87.9%Joel Greenblatt−41.7%

Who holds it

InvestorShare of their portfolioReported valueThis quarter
Wallace Weitz4.91%$71MNo change of 20%
Seth Klarman4.21%$228MNo change of 20%
First Pacific Advisors2.80%$226MNo change of 20%
Dodge & Cox Funds1.49%$2.85BNo change of 20%
Viking Global Investors1.09%$382MNo change of 20%
Polen Capital Management0.47%$54M−87.9%
Thomas Gayner0.34%$45MNo change of 20%
Jensen Investment Management0.21%$9MNo change of 20%
Yacktman Asset Management0.05%$4MNo change of 20%
Joel Greenblatt0.04%$17M−41.7%
David Katz0.02%$215KNo change of 20%

Holders over time

How many of the same 76 investors reported a position at each quarter end, up to Q2 2026.

10Q3 ’24
11Q4 ’24
10Q1 ’25
11Q2 ’25
13Q3 ’25
13Q4 ’25
12Q1 ’26
11Q2 ’26

Where to next

Dodge & Cox FundsLargest holder by dollars: $2.85B →Wallace WeitzHighest conviction: 4.91% of the portfolio →All portfoliosThe biggest bets reported for Q2 2026, on one sheet →

Source: SEC Form 13F filings for Q2 2026, the quarter ended Jun 30, 2026, from the 76 investors on the homepage sheet · CUSIP G0403H108 · data as of Nov 12, 2026. Weight is the share of the investor’s disclosed portfolio. Filings list long US-listed positions at quarter end. They are not live holdings, omit shorts, can be amended and give no reasons for a change.

Each investor’s filing