Brown Brothers Harriman & Co’s Aon AON Stock Holding History

Brown Brothers Harriman & Co’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 Q2	$2.45M	Buy	7,373 +796	+12%	+$257K	0.01%	322
2026 Q1	$2.12M	Buy	6,577 +947	+17%	+$315K	0.01%	298
2025 Q4	$1.99M	Buy	5,630 +1,013	+22%	+$354K	0.01%	280
2025 Q3	$1.65M	Buy	4,617 +484	+12%	+$175K	0.01%	274
2025 Q2	$1.47M	Buy	4,133 +166	+4%	+$60.1K	0.01%	271
2025 Q1	$1.58M	Sell	3,967 -49	-1%	-$18.8K	0.01%	245
2024 Q4	$1.44M	Sell	4,016 -11,135	-73%	-$4.09M	0.01%	249
2024 Q3	$5.24M	Sell	15,151 -6,084	-29%	-$1.99M	0.04%	147
2024 Q2	$6.23M	Buy	21,235 +17,047	+407%	+$5.04M	0.05%	130
2024 Q1	$1.4M	Buy	4,188 +551	+15%	+$171K	0.01%	227
2023 Q4	$1.06M	Sell	3,637 -31	-0.8%	-$9.92K	0.01%	249
2023 Q3	$1.19M	Buy	3,668 +425	+13%	+$141K	0.01%	228
2023 Q2	$1.12M	Sell	3,243 -133	-4%	-$43.2K	0.01%	234
2023 Q1	$1.06M	Sell	3,376 -13	-0.4%	-$4.02K	0.01%	239
2022 Q4	$1.02M	Sell	3,389 -242	-7%	-$70.7K	0.01%	222
2022 Q3	$973K	Sell	3,631 -98	-3%	-$27.7K	0.01%	218
2022 Q2	$1.01M	Sell	3,729 -815	-18%	-$234K	0.01%	218
2022 Q1	$1.48M	Buy	4,544 +226	+5%	+$65.7K	0.01%	196
2021 Q4	$1.3M	Sell	4,318 -1,155	-21%	-$346K	0.01%	216
2021 Q3	$1.56M	Buy	5,473 +50	+0.9%	+$13.4K	0.01%	180
2021 Q2	$1.29M	Buy	5,423 +9	+0.2%	+$2.2K	0.01%	207
2021 Q1	$1.25M	Sell	5,414 -1,120	-17%	-$247K	0.01%	199
2020 Q4	$1.38M	Buy	6,534 +330	+5%	+$67.4K	0.01%	192
2020 Q3	$1.28M	Sell	6,204 -93	-1%	-$18.6K	0.01%	186
2020 Q2	$1.21M	Buy	+6,297	New	+$1.17M	0.01%	186
2020 Q1	–	Sell	-6,261	Closed	-$1.3M	–	1094
2019 Q4	$1.3M	Hold	6,261	–	–	0.01%	219
2019 Q3	$1.21M	Buy	6,261 +259	+4%	+$50K	0.01%	211
2019 Q2	$1.16M	Hold	6,002	–	–	0.01%	207
2019 Q1	$1.02M	Sell	6,002 -1,079	-15%	-$175K	0.01%	205
2018 Q4	$1.03M	Buy	7,081 +181	+3%	+$28.1K	0.01%	188
2018 Q3	$1.06M	Sell	6,900 -42	-0.6%	-$6.14K	0.01%	196
2018 Q2	$952K	Hold	6,942	–	–	0.01%	187
2018 Q1	$974K	Sell	6,942 -55	-0.8%	-$7.7K	0.01%	188
2017 Q4	$938K	Buy	6,997 +97	+1%	+$13.8K	0.01%	194
2017 Q3	$1.01M	Buy	6,900 +1,700	+33%	+$237K	0.01%	176
2017 Q2	$691K	Sell	5,200 -1,732	-25%	-$219K	﹤0.01%	206
2017 Q1	$823K	Hold	6,932	–	–	﹤0.01%	187
2016 Q4	$773K	Buy	6,932 +1,732	+33%	+$193K	﹤0.01%	183
2016 Q3	$585K	Hold	5,200	–	–	﹤0.01%	205
2016 Q2	$568K	Hold	5,200	–	–	﹤0.01%	215
2016 Q1	$543K	Hold	5,200	–	–	﹤0.01%	220
2015 Q4	$479K	Hold	5,200	–	–	﹤0.01%	238
2015 Q3	$461K	Hold	5,200	–	–	﹤0.01%	246
2015 Q2	$518K	Hold	5,200	–	–	﹤0.01%	245
2015 Q1	$500K	Sell	5,200 -2,000	-28%	-$193K	﹤0.01%	257
2014 Q4	$683K	Sell	7,200 -28	-0.4%	-$2.5K	﹤0.01%	227
2014 Q3	$634K	Hold	7,228	–	–	﹤0.01%	236
2014 Q2	$651K	Hold	7,228	–	–	﹤0.01%	246
2014 Q1	$609K	Sell	7,228 -7,172	-50%	-$597K	﹤0.01%	227
2013 Q4	$1.21M	Buy	14,400 +7,163	+99%	+$567K	﹤0.01%	225
2013 Q3	$539K	Sell	7,237 -2,306	-24%	-$158K	﹤0.01%	226
2013 Q2	$614K	Buy	+9,543	New	+$605K	﹤0.01%	257

Other funds holding AON

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

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return

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

Dodge & Cox San Francisco, California $191B AUM 17.5% 1-Year Est. Return

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

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Brown Brothers Harriman & Co's AON Position: Q2 2026 in Review

Brown Brothers Harriman & Co increased its Aon (AON) stake by 12% in Q2 2026, buying an estimated $257K and bringing the position to 7,373 shares worth $2.45M. The position accounts for 0.01% of the portfolio, ranked #322.

Brown Brothers Harriman & Co first reported a position in AON in Q2 2013 and has held it in 52 quarters since. The position peaked at $6.23M in Q2 2024. 1,261 funds tracked by Wall St. Rank hold AON as of Q2 2026.

Brown Brothers Harriman & Co held 7,373 shares of Aon worth $2.45M as of Q2 2026.
Brown Brothers Harriman & Co bought 796 Aon shares in Q2 2026, an estimated $257K.
Aon made up 0.01% of Brown Brothers Harriman & Co's portfolio in Q2 2026, its #322 holding.
Brown Brothers Harriman & Co first reported a position in Aon in Q2 2013 and has held it in 52 quarters since.
Brown Brothers Harriman & Co's Aon position peaked at $6.23M in Q2 2024.
1,261 funds tracked by Wall St. Rank held Aon as of Q2 2026.

Based on Brown Brothers Harriman & Co's 13F filing for Q2 2026, filed 12 Aug 2026.