Twin Tree Management
AON icon

Twin Tree Management’s Aon AON Stock Holding History

Twin Tree Management’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
2023
Q3 		– Sell
-26,100
Closed -$9.01M – 1214
2023
Q2 		$9.01M Buy
26,100
+8,300
+47% +$2.7M 0.01% 635
2023
Q1 		$5.61M Hold
17,800
– – 0.01% 715
2022
Q4 		$5.34M Sell
17,800
-1,900
-10% -$555K 0.01% 728
2022
Q3 		$5.28M Sell
19,700
-27,800
-59% -$7.86M 0.01% 749
2022
Q2 		$12.8M Buy
47,500
+37,700
+385% +$10.8M 0.02% 564
2022
Q1 		$3.19M Buy
+9,800
New +$2.85M 0.01% 1055
2021
Q4 		– Sell
-58,100
Closed -$16.6M – 1573
2021
Q3 		$16.6M Buy
+58,100
New +$15.6M 0.04% 425
2020
Q3 		– Sell
-31,900
Closed -$6.14M – 1209
2020
Q2 		$6.14M Sell
31,900
-4,600
-13% -$857K 0.03% 598
2020
Q1 		$6.02M Sell
36,500
-33,200
-48% -$6.8M 0.03% 438
2019
Q4 		$14.5M Sell
69,700
-87,000
-56% -$17.2M 0.05% 281
2019
Q3 		$30.3M Buy
156,700
+50,500
+48% +$9.74M 0.12% 137
2019
Q2 		$20.5M Buy
106,200
+69,500
+189% +$12.6M 0.1% 179
2019
Q1 		$6.26M Buy
+36,700
New +$5.95M 0.03% 389
2015
Q4 		– Sell
-11,600
Closed -$1.03M – 1374
2015
Q3 		$1.03M Sell
11,600
-15,200
-57% -$1.47M 0.03% 533
2015
Q2 		$2.67M Buy
26,800
+24,700
+1,176% +$2.47M 0.06% 314
2015
Q1 		$202K Buy
2,100
+700
+50% +$67.7K 0.01% 957
2014
Q4 		$133K Buy
+1,400
New +$125K ﹤0.01% 952
2014
Q3 		– Sell
-9,300
Closed -$838K – 973
2014
Q2 		$838K Sell
9,300
-1,200
-11% -$104K 0.02% 607
2014
Q1 		$885K Sell
10,500
-30,700
-75% -$2.56M 0.02% 642
2013
Q4 		$3.46M Sell
41,200
-22,800
-36% -$1.81M 0.08% 267
2013
Q3 		$4.76M Buy
64,000
+3,800
+6% +$261K 0.16% 124
2013
Q2 		$3.87M Buy
+60,200
New +$3.81M 0.15% 146

Other funds holding AON

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Massachusetts Financial Services
Massachusetts Financial Services Boston, Massachusetts $298B AUM 21.96% 1-Year Est. Return
Dodge & Cox
Dodge & Cox San Francisco, California $182B AUM 14.68% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Berkshire Hathaway
Berkshire Hathaway Omaha, Nebraska $263B AUM 16.68% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $544B AUM 28.31% 1-Year Est. Return

Twin Tree Management's AON Position: Q4 2025 in Review

Twin Tree Management sold out of Aon (AON) in Q4 2025, closing a stake of 411 shares — an estimated $147K sold.

Twin Tree Management first reported a position in AON in Q2 2013 and held it in 23 quarters. The position peaked at $39.7M in Q3 2021. 1,279 funds tracked by Wall St. Rank hold AON as of Q4 2025.

  • Twin Tree Management reported no remaining Aon position as of Q4 2025 after selling out during the quarter.
  • Twin Tree Management sold 411 Aon shares in Q4 2025, an estimated $147K.
  • Twin Tree Management first reported a position in Aon in Q2 2013 and held it in 23 quarters.
  • Twin Tree Management's Aon position peaked at $39.7M in Q3 2021.
  • 1,279 funds tracked by Wall St. Rank held Aon as of Q4 2025.

Based on Twin Tree Management's 13F filing for Q4 2025, filed 11 Feb 2026.