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
2026
Q1 		$2.29M Buy
7,100
+4,900
+223% +$1.63M ﹤0.01% 1714
2025
Q4 		$776K Sell
2,200
-1,600
-42% -$559K ﹤0.01% 2875
2025
Q3 		$1.35M Buy
3,800
+100
+3% +$36.2K ﹤0.01% 2732
2025
Q2 		$1.32M Sell
3,700
-32,300
-90% -$11.7M ﹤0.01% 2499
2025
Q1 		$14.4M Sell
36,000
-8,900
-20% -$3.41M 0.01% 676
2024
Q4 		$16.1M Buy
44,900
+12,500
+39% +$4.6M 0.01% 753
2024
Q3 		$11.2M Sell
32,400
-9,900
-23% -$3.24M 0.01% 970
2024
Q2 		$12.4M Sell
42,300
-16,400
-28% -$4.85M 0.01% 885
2024
Q1 		$19.6M Buy
58,700
+27,800
+90% +$8.62M 0.01% 705
2023
Q4 		$8.99M Buy
30,900
+1,400
+5% +$448K 0.01% 1159
2023
Q3 		$9.56M Buy
29,500
+5,800
+24% +$1.92M 0.01% 946
2023
Q2 		$8.18M Sell
23,700
-77,800
-77% -$25.3M 0.01% 1018
2023
Q1 		$32M Buy
101,500
+44,500
+78% +$13.8M 0.03% 405
2022
Q4 		$17.1M Sell
57,000
-20,600
-27% -$6.02M 0.02% 621
2022
Q3 		$20.8M Buy
77,600
+17,800
+30% +$5.03M 0.02% 498
2022
Q2 		$16.1M Buy
59,800
+43,600
+269% +$12.5M 0.02% 603
2022
Q1 		$5.28M Buy
16,200
+1,400
+9% +$407K ﹤0.01% 1205
2021
Q4 		$4.45M Sell
14,800
-58,400
-80% -$17.5M ﹤0.01% 1295
2021
Q3 		$17.5M Hold
73,200
– – 0.02% 502
2021
Q2 		$17.5M Buy
+73,200
New +$17.9M 0.02% 488
2021
Q1 		– Sell
-452
Closed -$9.55M – 8725
2020
Q4 		$9.55M Buy
452
+184
+69% +$37.6K 0.01% 611
2020
Q3 		$5.53M Sell
268
-59
-18% -$11.8K 0.01% 800
2020
Q2 		$6.3M Buy
327
+103
+46% +$19.2K 0.01% 718
2020
Q1 		$3.7M Buy
224
+118
+111% +$24.2K 0.01% 866
2019
Q4 		$2.21M Buy
106
+66
+165% +$13.1K ﹤0.01% 1393
2019
Q3 		$774K Sell
40
-59
-60% -$11.4K ﹤0.01% 2198
2019
Q2 		$1.91M Sell
99
-22
-18% -$3.99K 0.01% 1343
2019
Q1 		$2.06M Buy
121
+68
+128% +$11K 0.01% 1351
2018
Q4 		$770K Buy
53
+15
+39% +$2.33K ﹤0.01% 1857
2018
Q3 		$584K Sell
38
-64
-63% -$9.36K ﹤0.01% 2469
2018
Q2 		$1.4M Sell
102
-47
-32% -$6.62K 0.01% 1452
2018
Q1 		$22K Buy
149
+108
+263% +$15.1K ﹤0.01% 3241
2017
Q4 		$14K Buy
41
+18
+78% +$2.56K ﹤0.01% 3615
2017
Q3 		$39K Sell
23
-28
-55% -$3.91K ﹤0.01% 2525
2017
Q2 		$17K Sell
51
-16
-24% -$2.02K ﹤0.01% 3445
2017
Q1 		$6K Buy
67
+7
+12% +$808 ﹤0.01% 4391
2016
Q4 		$12K Buy
+60
New +$6.69K ﹤0.01% 3530
2016
Q3 		– Sell
-49
Closed -$48K – 5735
2016
Q2 		$48K Sell
49
-51
-51% -$5.39K ﹤0.01% 2095
2016
Q1 		$91K Buy
100
+45
+82% +$4.22K 0.01% 1434
2015
Q4 		$3K Sell
55
-20
-27% -$1.86K ﹤0.01% 4179
2015
Q3 		$7K Sell
75
-134
-64% -$13K ﹤0.01% 3713
2015
Q2 		$39K Buy
209
+191
+1,061% +$19.1K ﹤0.01% 1880
2015
Q1 		$12K Buy
+18
New +$1.74K ﹤0.01% 2764

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.