1,594 institutions reported holding $128.66B of AON PLC (APP) in SEC 13F filings for 2026-06-30. Largest institutional holders: VANGUARD GROUP INC ($13.81B), BlackRock, Inc. ($12.39B), FMR LLC ($8.91B), STATE STREET CORP ($6.24B), Invesco Ltd. ($5.66B). Source: SEC Form 13F.
Source: SEC Form 13F filings · as of 2026-06-30