Arrowstreet Capital’s Aon AON Stock Holding History

Arrowstreet Capital’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	$257M	Buy	797,418 +340,866	+75%	+$113M	0.14%	139
2025 Q4	$161M	Buy	456,552 +279,467	+158%	+$97.6M	0.09%	216
2025 Q3	$63.1M	Buy	177,085 +98,332	+125%	+$35.6M	0.04%	392
2025 Q2	$28.1M	Buy	78,753 +61,924	+368%	+$22.4M	0.02%	582
2025 Q1	$6.72M	Buy	+16,829	New	+$6.45M	0.01%	924
2024 Q2	–	Sell	-3,793	Closed	-$1.27M	–	1504
2024 Q1	$1.27M	Sell	3,793 -634	-14%	-$197K	﹤0.01%	1266
2023 Q4	$1.29M	Sell	4,427 -1,049	-19%	-$336K	﹤0.01%	1056
2023 Q3	$1.77M	Sell	5,476 -26,426	-83%	-$8.74M	﹤0.01%	879
2023 Q2	$11M	Buy	31,902 +14,765	+86%	+$4.8M	0.01%	493
2023 Q1	$5.4M	Buy	17,137 +13,792	+412%	+$4.27M	0.01%	688
2022 Q4	$1M	Buy	+3,345	New	+$977K	﹤0.01%	1024
2022 Q1	–	Sell	-1,284,035	Closed	-$386M	–	1179
2021 Q4	$386M	Sell	1,284,035 -389,388	-23%	-$117M	0.47%	45
2021 Q3	$478M	Sell	1,673,423 -176,237	-10%	-$47.3M	0.6%	31
2021 Q2	$442M	Buy	1,849,660 +395,603	+27%	+$96.7M	0.54%	30
2021 Q1	$335M	Buy	1,454,057 +550,588	+61%	+$121M	0.45%	43
2020 Q4	$191M	Buy	903,469 +166,026	+23%	+$33.9M	0.27%	65
2020 Q3	$152M	Buy	737,443 +170,013	+30%	+$34M	0.24%	73
2020 Q2	$109M	Buy	+567,430	New	+$106M	0.2%	97
2020 Q1	–	Sell	-4,838	Closed	-$1.01M	–	1851
2019 Q4	$1.01M	Sell	4,838 -27,509	-85%	-$5.45M	﹤0.01%	1334
2019 Q3	$6.26M	Buy	32,347 +28,706	+788%	+$5.54M	0.01%	634
2019 Q2	$703K	Sell	3,641 -79,209	-96%	-$14.4M	﹤0.01%	1134
2019 Q1	$14.1M	Sell	82,850 -49,419	-37%	-$8.01M	0.03%	449
2018 Q4	$19.2M	Buy	+132,269	New	+$20.5M	0.05%	305
2018 Q2	–	Sell	-813,546	Closed	-$114M	–	1067
2018 Q1	$114M	Sell	813,546 -560,143	-41%	-$78.5M	0.26%	102
2017 Q4	$184M	Sell	1,373,689 -477,712	-26%	-$68M	0.44%	57
2017 Q3	$270M	Sell	1,851,401 -22,280	-1%	-$3.11M	0.72%	36
2017 Q2	$249M	Sell	1,873,681 -94,880	-5%	-$12M	0.75%	30
2017 Q1	$234M	Buy	+1,968,561	New	+$227M	0.86%	19
2016 Q4	–	Sell	-114,700	Closed	-$12.9M	–	1627
2016 Q3	$12.9M	Sell	114,700 -116,599	-50%	-$12.9M	0.04%	388
2016 Q2	$25.3M	Buy	231,299 +45,199	+24%	+$4.78M	0.08%	237
2016 Q1	$19.4M	Buy	186,100 +175,100	+1,592%	+$16.4M	0.08%	247
2015 Q4	$1.01M	Sell	11,000 -262,017	-96%	-$24.4M	﹤0.01%	985
2015 Q3	$24.2M	Buy	273,017 +161,017	+144%	+$15.6M	0.11%	179
2015 Q2	$11.2M	Buy	112,000 +95,000	+559%	+$9.51M	0.06%	249
2015 Q1	$1.63M	Buy	+17,000	New	+$1.64M	0.01%	630
2014 Q3	–	Sell	-141,165	Closed	-$12.7M	–	976
2014 Q2	$12.7M	Buy	141,165 +124,725	+759%	+$10.8M	0.07%	263
2014 Q1	$1.39M	Sell	16,440 -684,599	-98%	-$57M	0.01%	746
2013 Q4	$58.8M	Buy	701,039 +689,748	+6,109%	+$54.6M	0.32%	87
2013 Q3	$841K	Buy	+11,291	New	+$775K	0.01%	705

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

Arrowstreet Capital's AON Position: Q1 2026 in Review

Arrowstreet Capital increased its Aon (AON) stake by 75% in Q1 2026, buying an estimated $113M and bringing the position to 797,418 shares worth $257M. The position accounts for 0.14% of the portfolio, ranked #139.

Arrowstreet Capital first reported a position in AON in Q3 2013 and has held it in 39 quarters since. The position peaked at $478M in Q3 2021. 1,252 funds tracked by Wall St. Rank hold AON as of Q1 2026.

Arrowstreet Capital held 797,418 shares of Aon worth $257M as of Q1 2026.
Arrowstreet Capital bought 340,866 Aon shares in Q1 2026, an estimated $113M.
Aon made up 0.14% of Arrowstreet Capital's portfolio in Q1 2026, its #139 holding.
Arrowstreet Capital first reported a position in Aon in Q3 2013 and has held it in 39 quarters since.
Arrowstreet Capital's Aon position peaked at $478M in Q3 2021.
1,252 funds tracked by Wall St. Rank held Aon as of Q1 2026.

Based on Arrowstreet Capital's 13F filing for Q1 2026, filed 14 May 2026.