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GAMCO Investors’s Aon AON Stock Holding History

GAMCO Investors’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 		– Sell
-5,939
Closed -$1.92M – 944
2026
Q1 		$1.92M Buy
5,939
+83
+1% +$27.6K 0.02% 525
2025
Q4 		$2.07M Buy
5,856
+28
+0.5% +$9.78K 0.02% 522
2025
Q3 		$2.08M Buy
5,828
+228
+4% +$82.5K 0.02% 516
2025
Q2 		$2M Buy
+5,600
New +$2.03M 0.02% 530
2014
Q2 		– Sell
-3,200
Closed -$270K – 875
2014
Q1 		$270K Hold
3,200
– – ﹤0.01% 779
2013
Q4 		$268K Sell
3,200
-3,100
-49% -$246K ﹤0.01% 764
2013
Q3 		$469K Sell
6,300
-700
-10% -$48K ﹤0.01% 700
2013
Q2 		$450K Buy
+7,000
New +$444K ﹤0.01% 676

Other funds holding AON

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Dodge & Cox
Dodge & Cox San Francisco, California $191B AUM 17.5% 1-Year Est. Return
Massachusetts Financial Services
Massachusetts Financial Services Boston, Massachusetts $315B AUM 27.84% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

GAMCO Investors's AON Position: Q2 2026 in Review

GAMCO Investors sold out of Aon (AON) in Q2 2026, closing a stake of 5,939 shares — an estimated $1.92M sold.

GAMCO Investors first reported a position in AON in Q2 2013 and held it in 8 quarters. The position peaked at $2.08M in Q3 2025. 1,266 funds tracked by Wall St. Rank hold AON as of Q2 2026.

  • GAMCO Investors reported no remaining Aon position as of Q2 2026 after selling out during the quarter.
  • GAMCO Investors sold 5,939 Aon shares in Q2 2026, an estimated $1.92M.
  • GAMCO Investors first reported a position in Aon in Q2 2013 and held it in 8 quarters.
  • GAMCO Investors's Aon position peaked at $2.08M in Q3 2025.
  • 1,266 funds tracked by Wall St. Rank held Aon as of Q2 2026.

Based on GAMCO Investors's 13F filing for Q2 2026, filed 12 Aug 2026.