Cohen Klingenstein’s Aon AON Stock Holding History

Cohen Klingenstein’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 Q3	$1.38M	Hold	5,000	–	–	0.04%	142
2026 Q2	$1.66M	Hold	5,000	–	–	0.05%	138
2026 Q1	$1.61M	Hold	5,000	–	–	0.05%	139
2025 Q4	$1.76M	Hold	5,000	–	–	0.05%	134
2025 Q3	$1.78M	Hold	5,000	–	–	0.06%	133
2025 Q2	$1.78M	Hold	5,000	–	–	0.06%	129
2025 Q1	$2M	Hold	5,000	–	–	0.07%	120
2024 Q4	$1.8M	Hold	5,000	–	–	0.06%	127
2024 Q3	$1.73M	Hold	5,000	–	–	0.06%	144
2024 Q2	$1.47M	Hold	5,000	–	–	0.05%	146
2024 Q1	$1.67M	Hold	5,000	–	–	0.06%	138
2023 Q4	$1.46M	Hold	5,000	–	–	0.06%	145
2023 Q3	$1.62M	Hold	5,000	–	–	0.07%	133
2023 Q2	$1.73M	Hold	5,000	–	–	0.07%	132
2023 Q1	$1.58M	Hold	5,000	–	–	0.07%	136
2022 Q4	$1.5M	Hold	5,000	–	–	0.08%	139
2022 Q3	$1.34M	Hold	5,000	–	–	0.07%	137
2022 Q2	$1.35M	Hold	5,000	–	–	0.07%	138
2022 Q1	$1.63M	Hold	5,000	–	–	0.07%	132
2021 Q4	$1.5M	Hold	5,000	–	–	0.06%	146
2021 Q3	$1.43M	Hold	5,000	–	–	0.06%	146
2021 Q2	$1.19M	Hold	5,000	–	–	0.05%	171
2021 Q1	$1.15M	Hold	5,000	–	–	0.05%	169
2020 Q4	$1.06M	Hold	5,000	–	–	0.05%	168
2020 Q3	$1.03M	Hold	5,000	–	–	0.06%	165
2020 Q2	$963K	Hold	5,000	–	–	0.06%	162
2020 Q1	$825K	Hold	5,000	–	–	0.06%	161
2019 Q4	$1.04M	Hold	5,000	–	–	0.06%	159
2019 Q3	$968K	Buy	+5,000	New	+$965K	0.06%	164

Other funds holding AON

JP Morgan Chase New York $1.84T AUM 33.86% 1-Year Est. Return

State Street Boston, Massachusetts $3.44T AUM 36.12% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return

Bank of New York Mellon New York $608B AUM 32.77% 1-Year Est. Return

Boston Partners Boston, Massachusetts $111B AUM 30.48% 1-Year Est. Return

WCM Investment Management Laguna Beach, California $59.1B AUM 41.96% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $551B AUM 33.95% 1-Year Est. Return

Veritas Asset Management London, United Kingdom $5.37B AUM 7.96% 1-Year Est. Return

Mawer Investment Management Calgary, Alberta, Canada $13.6B AUM 13.16% 1-Year Est. Return

Mitsubishi UFJ Asset Management Tokyo, Japan $194B AUM 32.2% 1-Year Est. Return

Cohen Klingenstein's AON Position: Q3 2026 in Review

Cohen Klingenstein held its Aon (AON) position steady in Q3 2026 at 5,000 shares worth $1.38M. The position accounts for 0.04% of the portfolio, ranked #142.

Cohen Klingenstein first reported a position in AON in Q3 2019 and has held it in 29 quarters since. The position peaked at $2M in Q1 2025. 785 funds tracked by Wall St. Rank hold AON as of Q3 2026.

Cohen Klingenstein held 5,000 shares of Aon worth $1.38M as of Q3 2026.
Cohen Klingenstein left its Aon share count unchanged in Q3 2026.
Aon made up 0.04% of Cohen Klingenstein's portfolio in Q3 2026, its #142 holding.
Cohen Klingenstein first reported a position in Aon in Q3 2019 and has held it in 29 quarters since.
Cohen Klingenstein's Aon position peaked at $2M in Q1 2025.
785 funds tracked by Wall St. Rank held Aon as of Q3 2026.

Based on Cohen Klingenstein's 13F filing for Q3 2026, filed 15 Oct 2026.