Magnetar Financial’s Aon AON Stock Holding History

Magnetar Financial’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
2026 Q1	–	Sell	-4,576	Closed	-$1.61M	–	1147
2025 Q4	$1.61M	Sell	4,576 -17,520	-79%	-$6.12M	0.02%	375
2025 Q3	$7.88M	Buy	+22,096	New	+$7.99M	0.05%	147
2025 Q2	–	Sell	-5,536	Closed	-$2.21M	–	888
2025 Q1	$2.21M	Buy	+5,536	New	+$2.12M	0.03%	265
2024 Q3	–	Sell	-16,028	Closed	-$4.71M	–	525
2024 Q2	$4.71M	Buy	+16,028	New	+$4.74M	0.1%	110
2024 Q1	–	Sell	-14,579	Closed	-$4.24M	–	374
2023 Q4	$4.24M	Buy	+14,579	New	+$4.67M	0.11%	115
2019 Q1	–	Sell	-5,833	Closed	-$848K	–	419
2018 Q4	$848K	Buy	+5,833	New	+$906K	0.02%	129
2018 Q3	–	Sell	-2,167	Closed	-$297K	–	510
2018 Q2	$297K	Buy	+2,167	New	+$305K	﹤0.01%	375
2018 Q1	–	Sell	-19,456	Closed	-$2.61M	–	576
2017 Q4	$2.61M	Buy	+19,456	New	+$2.77M	0.05%	96
2017 Q3	–	Sell	-23,247	Closed	-$3.09M	–	717
2017 Q2	$3.09M	Buy	+23,247	New	+$2.94M	0.05%	173
2016 Q4	–	Sell	-27,328	Closed	-$3.07M	–	34
2016 Q3	$3.07M	Buy	+27,328	New	+$3.01M	0.04%	133
2015 Q4	–	Sell	-4,578	Closed	-$406K	–	359
2015 Q3	$406K	Buy	+4,578	New	+$443K	0.01%	273
2013 Q4	–	Sell	-3,732	Closed	-$278K	–	230
2013 Q3	$278K	Buy	+3,732	New	+$256K	﹤0.01%	450

Other funds holding AON

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Massachusetts Financial Services Boston, Massachusetts $298B AUM 21.96% 1-Year Est. Return

Dodge & Cox San Francisco, California $182B AUM 14.68% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Magnetar Financial's AON Position: Q1 2026 in Review

Magnetar Financial sold out of Aon (AON) in Q1 2026, closing a stake of 4,576 shares — an estimated $1.61M sold.

Magnetar Financial first reported a position in AON in Q3 2013 and held it in 12 quarters. The position peaked at $7.88M in Q3 2025. 1,252 funds tracked by Wall St. Rank hold AON as of Q1 2026.

Magnetar Financial reported no remaining Aon position as of Q1 2026 after selling out during the quarter.
Magnetar Financial sold 4,576 Aon shares in Q1 2026, an estimated $1.61M.
Magnetar Financial first reported a position in Aon in Q3 2013 and held it in 12 quarters.
Magnetar Financial's Aon position peaked at $7.88M in Q3 2025.
1,252 funds tracked by Wall St. Rank held Aon as of Q1 2026.

Based on Magnetar Financial's 13F filing for Q1 2026, filed 13 May 2026.