Simplex Trading
AON icon

Simplex Trading’s Aon AON Stock Holding History

Simplex Trading’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
Q4 		– Sell
-17,200
Closed -$6.13M – 8442
2025
Q3 		$6.13M Buy
17,200
+14,600
+562% +$5.28M ﹤0.01% 1289
2025
Q2 		$927K Sell
2,600
-12,600
-83% -$4.57M ﹤0.01% 2856
2025
Q1 		$6.07M Sell
15,200
-11,500
-43% -$4.41M ﹤0.01% 1180
2024
Q4 		$9.59M Sell
26,700
-13,900
-34% -$5.11M 0.01% 1062
2024
Q3 		$14M Buy
40,600
+26,400
+186% +$8.64M 0.01% 824
2024
Q2 		$4.17M Sell
14,200
-15,900
-53% -$4.7M ﹤0.01% 1569
2024
Q1 		$10M Buy
30,100
+11,000
+58% +$3.41M 0.01% 1121
2023
Q4 		$5.56M Sell
19,100
-2,300
-11% -$736K ﹤0.01% 1466
2023
Q3 		$6.94M Sell
21,400
-8,200
-28% -$2.71M 0.01% 1131
2023
Q2 		$10.2M Buy
29,600
+12,700
+75% +$4.12M 0.01% 879
2023
Q1 		$5.33M Sell
16,900
-1,900
-10% -$588K ﹤0.01% 1260
2022
Q4 		$5.64M Buy
18,800
+5,400
+40% +$1.58M 0.01% 1150
2022
Q3 		$3.59M Buy
13,400
+7,600
+131% +$2.15M ﹤0.01% 1457
2022
Q2 		$1.56M Buy
5,800
+3,900
+205% +$1.12M ﹤0.01% 2131
2022
Q1 		$618K Sell
1,900
-800
-30% -$233K ﹤0.01% 3564
2021
Q4 		$811K Sell
2,700
-43,800
-94% -$13.1M ﹤0.01% 3148
2021
Q3 		$11.1M Buy
46,500
+100
+0.2% +$26.9K 0.01% 676
2021
Q2 		$11.1M Buy
+46,400
New +$11.3M 0.01% 673
2021
Q1 		– Sell
-147
Closed -$3.1M – 8727
2020
Q4 		$3.1M Sell
147
-230
-61% -$47K ﹤0.01% 1359
2020
Q3 		$7.78M Buy
377
+64
+20% +$12.8K 0.01% 628
2020
Q2 		$6.03M Buy
313
+297
+1,856% +$55.3K 0.01% 739
2020
Q1 		$264K Sell
16
-215
-93% -$44K ﹤0.01% 3267
2019
Q4 		$4.81M Buy
231
+202
+697% +$40K 0.01% 826
2019
Q3 		$561K Sell
29
-109
-79% -$21K ﹤0.01% 2505
2019
Q2 		$2.66M Sell
138
-2
-1% -$362 0.01% 1089
2019
Q1 		$2.39M Buy
140
+59
+73% +$9.57K 0.01% 1209
2018
Q4 		$1.18M Buy
81
+51
+170% +$7.92K ﹤0.01% 1502
2018
Q3 		$461K Sell
30
-111
-79% -$16.2K ﹤0.01% 2719
2018
Q2 		$1.93M Buy
141
+14
+11% +$1.97K 0.01% 1174
2018
Q1 		$11K Sell
127
-6
-5% -$840 ﹤0.01% 3929
2017
Q4 		$45K Buy
+133
New +$18.9K ﹤0.01% 2546
2017
Q3 		– Sell
-130
Closed -$8K – 5836
2017
Q2 		$8K Sell
130
-200
-61% -$25.3K ﹤0.01% 4132
2017
Q1 		$18K Sell
330
-62
-16% -$7.15K ﹤0.01% 3335
2016
Q4 		$25K Buy
392
+67
+21% +$7.47K ﹤0.01% 2821
2016
Q3 		$20K Buy
325
+298
+1,104% +$32.9K ﹤0.01% 2951
2016
Q2 		$1K Buy
+27
New +$2.86K ﹤0.01% 5189
2016
Q1 		– Sell
-1
Closed -$1K – 5522
2015
Q4 		$1K Sell
1
-17
-94% -$1.58K ﹤0.01% 4766
2015
Q3 		$25K Sell
18
-27
-60% -$2.61K ﹤0.01% 2578
2015
Q2 		$10K Sell
45
-2
-4% -$200 ﹤0.01% 3039
2015
Q1 		$9K Buy
+47
New +$4.55K ﹤0.01% 3000

Other funds holding AON

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
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
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Simplex Trading's AON Position: Q1 2026 in Review

Simplex Trading opened a new position in Aon (AON) in Q1 2026: 684 shares worth $221K. The stake represents ﹤0.01% of the portfolio and ranks #4193 among its holdings. This is a return to the name: Simplex Trading previously reported a position in AON as recently as Q3 2025.

Simplex Trading first reported a position in AON in Q4 2014 and has held it in 18 quarters since. The position peaked at $7.62M in Q2 2021. 1,252 funds tracked by Wall St. Rank hold AON as of Q1 2026.

  • Simplex Trading held 684 shares of Aon worth $221K as of Q1 2026.
  • Aon was a new Simplex Trading position in Q1 2026.
  • Aon made up ﹤0.01% of Simplex Trading's portfolio in Q1 2026, its #4193 holding.
  • Simplex Trading first reported a position in Aon in Q4 2014 and has held it in 18 quarters since.
  • Simplex Trading's Aon position peaked at $7.62M in Q2 2021.
  • 1,252 funds tracked by Wall St. Rank held Aon as of Q1 2026.

Based on Simplex Trading's 13F filing for Q1 2026, filed 14 May 2026.