Marshall Wace
AON icon

Marshall Wace’s Aon AON Stock Holding History

Marshall Wace’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
-200
Closed -$71.3K – 2928
2025
Q3 		$71.3K Buy
+200
New +$72.3K ﹤0.01% 2696

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 $3.38T AUM 44.17% 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

Marshall Wace's AON Position: Q2 2026 in Review

Marshall Wace opened a new position in Aon (AON) in Q2 2026: 46,582 shares worth $15.5M. The stake represents 0.01% of the portfolio and ranks #840 among its holdings. This is a return to the name: Marshall Wace previously reported a position in AON as recently as Q4 2025.

Marshall Wace first reported a position in AON in Q2 2014 and has held it in 24 quarters since. The position peaked at $86.2M in Q2 2025. 1,268 funds tracked by Wall St. Rank hold AON as of Q2 2026.

  • Marshall Wace held 46,582 shares of Aon worth $15.5M as of Q2 2026.
  • Aon was a new Marshall Wace position in Q2 2026.
  • Aon made up 0.01% of Marshall Wace's portfolio in Q2 2026, its #840 holding.
  • Marshall Wace first reported a position in Aon in Q2 2014 and has held it in 24 quarters since.
  • Marshall Wace's Aon position peaked at $86.2M in Q2 2025.
  • 1,268 funds tracked by Wall St. Rank held Aon as of Q2 2026.

Based on Marshall Wace's 13F filing for Q2 2026, filed 13 Aug 2026.