Aon Plc (AON) Institutional Ownership and Insiders Activity

Aon Plc (AON) is widely held by institutional investors, with 1248 firms reporting positions valued at approximately $65.09B based on SEC Form 13F filings for the quarter ended June 30, 2026.

Blackrock, Inc. is the largest disclosed holder, reporting approximately $5.21B in AON holdings in its latest filing.

Recent insider activity includes 38 tracked Form 4 transactions over the last three months, reflecting ongoing executive and director trading activity.