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Ostrum Asset Management’s Aon AON Stock Holding History

Ostrum Asset 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
2026
Q2 		$3.82M Buy
11,518
+1,086
+10% +$350K 0.18% 75
2026
Q1 		$3.37M Buy
10,432
+157
+2% +$52.2K 0.19% 76
2025
Q4 		$3.63M Sell
10,275
-2,424
-19% -$846K 0.17% 87
2025
Q3 		$4.53M Buy
12,699
+3,178
+33% +$1.15M 0.2% 80
2025
Q2 		$3.4M Sell
9,521
-130
-1% -$47.1K 0.16% 113
2025
Q1 		$3.85M Sell
9,651
-180
-2% -$69K 0.2% 92
2024
Q4 		$3.53M Sell
9,831
-266
-3% -$97.8K 0.31% 84
2024
Q3 		$3.49M Sell
10,097
-644
-6% -$211K 0.29% 98
2024
Q2 		$3.15M Sell
10,741
-780
-7% -$231K 0.28% 107
2024
Q1 		$3.84M Buy
11,521
+146
+1% +$45.3K 0.3% 89
2023
Q4 		$3.31M Buy
11,375
+4,585
+68% +$1.47M 0.29% 99
2023
Q3 		$2.2M Sell
6,790
-9,160
-57% -$3.03M 0.2% 163
2023
Q2 		$5.51M Sell
15,950
-210
-1% -$68.2K 0.46% 45
2023
Q1 		$5.1M Buy
+16,160
New +$5M 0.44% 51

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

Ostrum Asset Management's AON Position: Q2 2026 in Review

Ostrum Asset Management increased its Aon (AON) stake by 10% in Q2 2026, buying an estimated $350K and bringing the position to 11,518 shares worth $3.82M. The position accounts for 0.18% of the portfolio, ranked #75.

Ostrum Asset Management first reported a position in AON in Q1 2023 and has held it in 14 quarters since. The position peaked at $5.51M in Q2 2023. 1,261 funds tracked by Wall St. Rank hold AON as of Q2 2026.

  • Ostrum Asset Management held 11,518 shares of Aon worth $3.82M as of Q2 2026.
  • Ostrum Asset Management bought 1,086 Aon shares in Q2 2026, an estimated $350K.
  • Aon made up 0.18% of Ostrum Asset Management's portfolio in Q2 2026, its #75 holding.
  • Ostrum Asset Management first reported a position in Aon in Q1 2023 and has held it in 14 quarters since.
  • Ostrum Asset Management's Aon position peaked at $5.51M in Q2 2023.
  • 1,261 funds tracked by Wall St. Rank held Aon as of Q2 2026.

Based on Ostrum Asset Management's 13F filing for Q2 2026, filed 13 Aug 2026.