Guyasuta Investment Advisors’s Aon AON Stock Holding History

Guyasuta Investment Advisors’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 Q3	–	Sell	-850	Closed	-$303K	–	262
2025 Q2	$303K	Hold	850	–	–	0.02%	215
2025 Q1	$339K	Hold	850	–	–	0.02%	188
2024 Q4	$305K	Hold	850	–	–	0.02%	205
2024 Q3	$294K	Buy	+850	New	+$278K	0.02%	216
2016 Q1	–	Sell	-5,165	Closed	-$476K	–	205
2015 Q4	$476K	Sell	5,165 -100	-2%	-$9.31K	0.07%	136
2015 Q3	$466K	Hold	5,265	–	–	0.07%	144
2015 Q2	$524K	Hold	5,265	–	–	0.07%	151
2015 Q1	$506K	Hold	5,265	–	–	0.07%	147
2014 Q4	$499K	Sell	5,265 -35	-0.7%	-$3.13K	0.07%	148
2014 Q3	$464K	Hold	5,300	–	–	0.06%	144
2014 Q2	$477K	Hold	5,300	–	–	0.06%	146
2014 Q1	$446K	Hold	5,300	–	–	0.06%	144
2013 Q4	$444K	Sell	5,300 -2,550	-32%	-$202K	0.06%	145
2013 Q3	$584K	Buy	7,850 +4,700	+149%	+$322K	0.09%	124
2013 Q2	$202K	Buy	+3,150	New	+$200K	0.03%	171

Other funds holding AON

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

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

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

State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return

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

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

Berkshire Hathaway Omaha, Nebraska $299B AUM 27.55% 1-Year Est. Return

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

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

Guyasuta Investment Advisors's AON Position: Q3 2025 in Review

Guyasuta Investment Advisors sold out of Aon (AON) in Q3 2025, closing a stake of 850 shares — an estimated $303K sold.

Guyasuta Investment Advisors first reported a position in AON in Q2 2013 and held it in 15 quarters. The position peaked at $584K in Q3 2013. 1,253 funds tracked by Wall St. Rank hold AON as of Q3 2025.

Guyasuta Investment Advisors reported no remaining Aon position as of Q3 2025 after selling out during the quarter.
Guyasuta Investment Advisors sold 850 Aon shares in Q3 2025, an estimated $303K.
Guyasuta Investment Advisors first reported a position in Aon in Q2 2013 and held it in 15 quarters.
Guyasuta Investment Advisors's Aon position peaked at $584K in Q3 2013.
1,253 funds tracked by Wall St. Rank held Aon as of Q3 2025.

Based on Guyasuta Investment Advisors's 13F filing for Q3 2025, filed 21 Oct 2025.