Aon Hit With $120M Retirement Plan Underperformance Suit

By Lauraann Wood ( May 22, 2026, 11:10 PM EDT) -- Aon Corp. was hit Friday with retirement plan mismanagement claims by a group of current and former participants who say fiduciaries' failure to remove underperforming Vanguard funds as investment options has cost their plan more than $120 million in assets....

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