Aon Plc (AON) Institutional Ownership

AON is currently held by 14 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $4.16B based on the latest available SEC Form 13F filings for the quarter ended March 31, 2026.

The largest disclosed holder is Dodge & Cox Stock Fund, which reported ownership valued at approximately $2.62B in its March 31, 2026 13F filing. Based on current market prices and the latest disclosed share count, Dodge & Cox Stock Fund's AON position is now estimated to be worth approximately $2.60B, representing an estimated loss of -0.63% since the filing period.

Major shareholders tracked on this page include Dodge & Cox Stock Fund, Polen Capital Management, Cantillon Capital Management, and other prominent asset managers. Collectively, these investors account for approximately 96% of the total disclosed value among the investors covered in this analysis.

This page tracks institutional ownership trends, hedge fund exposure, portfolio concentration, historical 13F filings, and estimated holding performance to help investors analyze smart money sentiment toward Aon Plc (AON).

Institutional Ownership Trend

Portfolio quarterInstitutional holdersTotal reported valueTotal shares
Q1 202614$4,155,263,11513,641,591
Q4 202511$6,224,483,64817,639,095
Q3 202511$5,358,000,13415,026,082
Q2 20259$3,715,943,25410,415,807
Q1 202510$4,424,275,75711,086,175
Q4 202412$4,315,751,24712,016,236
Q3 202411$4,137,882,89311,959,545
Q2 202411$3,306,334,89511,262,125
Q1 202410$2,985,330,3399,940,833
Q4 20238$2,368,223,7748,266,547
Q3 20237$2,567,141,8127,919,798
Q2 20237$2,837,332,9608,221,287

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