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Illinois Municipal Retirement Fund’s Aon AON Stock Holding History

Illinois Municipal Retirement Fund’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 		$5M Buy
15,480
+768
+5% +$255K 0.06% 335
2025
Q4 		$5.19M Buy
14,712
+1,231
+9% +$430K 0.07% 316
2025
Q3 		$4.81M Buy
13,481
+1,755
+15% +$635K 0.06% 346
2025
Q2 		$4.18M Buy
11,726
+4,469
+62% +$1.62M 0.06% 351
2025
Q1 		$2.9M Hold
7,257
– – 0.04% 426
2024
Q4 		$2.61M Hold
7,257
– – 0.04% 465
2024
Q3 		$2.51M Hold
7,257
– – 0.04% 476
2024
Q2 		$2.13M Hold
7,257
– – 0.03% 513
2024
Q1 		$2.42M Sell
7,257
-4,152
-36% -$1.29M 0.04% 464
2023
Q4 		$3.32M Hold
11,409
– – 0.06% 353
2023
Q3 		$3.7M Hold
11,409
– – 0.07% 306
2023
Q2 		$3.94M Sell
11,409
-909
-7% -$295K 0.08% 299
2023
Q1 		$3.88M Sell
12,318
-3,873
-24% -$1.2M 0.08% 293
2022
Q4 		$4.86M Hold
16,191
– – 0.11% 251
2022
Q3 		$4.34M Hold
16,191
– – 0.11% 247
2022
Q2 		$4.37M Buy
16,191
+6,615
+69% +$1.9M 0.1% 256
2022
Q1 		$3.12M Hold
9,576
– – 0.09% 263
2021
Q4 		$2.88M Buy
9,576
+2,265
+31% +$679K 0.08% 276
2021
Q3 		$2.09M Hold
7,311
– – 0.08% 298
2021
Q2 		$1.75M Hold
7,311
– – 0.07% 323
2021
Q1 		$1.68M Hold
7,311
– – 0.07% 308
2020
Q4 		$1.54M Buy
7,311
+3,401
+87% +$694K 0.07% 314
2020
Q3 		$807K Buy
+3,910
New +$781K 0.11% 251
2020
Q1 		– Sell
-3,755
Closed -$782K – 197
2019
Q4 		$782K Buy
+3,755
New +$744K 0.3% 177

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

Illinois Municipal Retirement Fund's AON Position: Q1 2026 in Review

Illinois Municipal Retirement Fund increased its Aon (AON) stake by 5.2% in Q1 2026, buying an estimated $255K and bringing the position to 15,480 shares worth $5M. The position accounts for 0.06% of the portfolio, ranked #335.

Illinois Municipal Retirement Fund first reported a position in AON in Q4 2019 and has held it in 24 quarters since. The position peaked at $5.19M in Q4 2025. 1,252 funds tracked by Wall St. Rank hold AON as of Q1 2026.

  • Illinois Municipal Retirement Fund held 15,480 shares of Aon worth $5M as of Q1 2026.
  • Illinois Municipal Retirement Fund bought 768 Aon shares in Q1 2026, an estimated $255K.
  • Aon made up 0.06% of Illinois Municipal Retirement Fund's portfolio in Q1 2026, its #335 holding.
  • Illinois Municipal Retirement Fund first reported a position in Aon in Q4 2019 and has held it in 24 quarters since.
  • Illinois Municipal Retirement Fund's Aon position peaked at $5.19M in Q4 2025.
  • 1,252 funds tracked by Wall St. Rank held Aon as of Q1 2026.

Based on Illinois Municipal Retirement Fund's 13F filing for Q1 2026, filed 5 May 2026.