Stock profile

Aon plc (AON)

AON · Latest close — as of Oct 2, 2026 · 13F data as of Jun 30, 2026 (2026 Q2)
Latest close
Data unavailable
No price in range
Tracked funds holding
10 of 83
2026 Q2 13F filings
Opened / added
0 / 3
vs previous quarter
Trimmed / exited
4
vs previous quarter

Super-investor holdings · 2026 Q2

FundPortfolio weightSharesChange vs prev. quarter
Weitz Investment Management4.91%213,860HELD
Baupost Group4.21%687,000TRIMMED (-10.7%)
First Pacific Advisors2.79%681,367TRIMMED (-3.1%)
Dodge & Cox Funds1.49%8,593,144ADDED (+5.9%)
Viking Global Investors1.09%1,151,269ADDED (+5.9%)
Polen Capital Management0.47%164,035TRIMMED (-87.9%)
Markel Group0.34%135,800HELD
Jensen Investment Management0.21%25,789ADDED (+0.9%)
Yacktman Asset Management0.05%12,915HELD
Matrix Asset Advisors0.02%648HELD

Source: SEC Form 13F filings for the quarter ended Jun 30, 2026. Change labels compare each fund’s 2026 Q2 filing with its previous filing. 13F filings cover long positions only and arrive up to 45 days after quarter-end.

Exited this quarter: Cantillon Capital Management.

All institutions · Form 13F

Institutions holding1,261 of 8,857 filers
Long-only filers among them1,257
Change vs 2026 Q1+23 net · 1,104 entered · 1,081 exited
Shares reported, all filers191,651,207
Reported value, all filers$61.4B

Source: SEC Form 13F data sets — every filer's latest report for the quarter ended Jun 30, 2026, not just the tracked funds above; changes compare with the quarter ended Mar 31, 2026. Share counts and values are summed as reported in the filings (a small number of filers report values in thousands of dollars, so value totals are as-filed sums).

Insider trading · Form 4

Data unavailable — no Form 4 transactions for this ticker were parsed in the 90 days to Oct 3, 2026.

Politician trading · U.S. Congress

Data unavailable — no congressional STOCK Act transactions for this ticker were parsed in the current window (as of Oct 3, 2026).

Screens & lenses

This stock does not currently pass any tracked screen.

Signal record

· Super-investor 13F BEST — appeared in 9 of the last 20 quarterly lists; latest 2026 Q2, ranked #47 of 50.

· Politician BEST — appeared in 2 of the last 20 quarterly lists; latest 2024 Q2, ranked #37 of 50.

13F signal (2021 Q3 – 2026 Q1)EventsWin rateAvg returnSPYExcess
Heavy accumulation — 3+ tracked funds increased together1376.9%+3.8%+3.9%-0.1%
Share count tripled (3x)1100.0%+1.6%+8.6%-7.0%

Measured from SEC 13F filings: entry at the close on the first trading day after each quarter’s filing deadline, exit one quarter later on the same rule, dividend-adjusted closes. Past records do not guarantee future results — see Track Record and Methodology.

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