IMC Chicago’s Aon AON Stock Holding History

IMC Chicago’s Portfolio AON Stock Details AON Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q4	–	Sell	-14,736	Closed	-$5.15M	–	4043
2025 Q3	$5.25M	Buy	14,736 +4,533	+44%	+$1.64M	﹤0.01%	1534
2025 Q2	$3.64M	Buy	+10,203	New	+$3.7M	﹤0.01%	1600

Other funds holding AON

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Massachusetts Financial Services Boston, Massachusetts $315B AUM 27.84% 1-Year Est. Return

Bank of New York Mellon New York $609B AUM 40.19% 1-Year Est. Return

Mitsubishi UFJ Asset Management Tokyo, Japan $180B AUM 37.51% 1-Year Est. Return

Boston Partners Boston, Massachusetts $113B AUM 38.87% 1-Year Est. Return

VAM

Veritas Asset Management London, United Kingdom $5.56B AUM 3.46% 1-Year Est. Return

Mawer Investment Management Calgary, Alberta, Canada $14.7B AUM 12.5% 1-Year Est. Return

Diamond Hill Capital Management Columbus, Ohio $12.5B AUM 7.49% 1-Year Est. Return

CGI

Comgest Global Investors Paris, France $4.55B AUM 11.62% 1-Year Est. Return

IMC Chicago's AON Position: Q4 2025 in Review

IMC Chicago sold out of Aon (AON) in Q4 2025, closing a stake of 14,736 shares — an estimated $5.15M sold.

IMC Chicago first reported a position in AON in Q2 2025 and held it in 2 quarters. The position peaked at $5.25M in Q3 2025. 1,280 funds tracked by Wall St. Rank hold AON as of Q4 2025.

IMC Chicago reported no remaining Aon position as of Q4 2025 after selling out during the quarter.
IMC Chicago sold 14,736 Aon shares in Q4 2025, an estimated $5.15M.
IMC Chicago first reported a position in Aon in Q2 2025 and held it in 2 quarters.
IMC Chicago's Aon position peaked at $5.25M in Q3 2025.
1,280 funds tracked by Wall St. Rank held Aon as of Q4 2025.

Based on IMC Chicago's 13F filing for Q4 2025, filed 29 Jan 2026.