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© 2026 DataHeimdall. All rights reserved.Data sourced from SEC EDGAR public filings.
Insider Trades

AON

Superinvestors

Institutional investors holding AON

Consensus →
InvestorFundWeightSharesValueQuarter
Wallace WeitzWeitz Investment Management4.58%218,735$77.2M2025Q4
Polen Capital ManagementPolen Capital Management2.78%1,846,294$651.5M2025Q4
William Von MuefflingCantillon Capital Management2.37%1,243,018$438.6M2025Q4
Dodge & CoxDodge & Cox1.50%7,852,456$2.8B2025Q4
Viking Global InvestorsViking Global Investors0.73%783,650$276.5M2025Q4
Warren BuffettBerkshire Hathaway0.46%3,602,995$1.3B2025Q4
Yacktman Asset ManagementYacktman Asset Management0.06%12,915$4.6M2025Q4
Jensen Investment ManagementJensen Investment Management0.06%10,603$3.7M2025Q4
David KatzMatrix Asset Advisors0.02%648$229K2025Q4
Kenneth FisherFisher Asset Management0.00%635$224K2025Q4
Bill NygrenOakmark Select Fund – Harris Associates0.00%699$247K2025Q4

Congressional Activity

Congressional data coming soon

Insider Activity

1

Total trades

$58K

Volume

0

Buys

1

Sells

Last trade: Dec 23, 2021

Insider Tradeslast 90 days

No insider trades in the last 90 days.

Congressional Tradeslast 90 days

Congressional trade data is being sourced and will appear here shortly.