On September 10, Aon PLC fell 3.18% in regular trading, trading at $305.63 per share with turnover of $4.85 billion. The decline reflects continued selling pressure from the company's massive acquisition plan combined with a wave of analyst price target reductions.

Aon previously announced an all-cash deal worth approximately $17 billion to acquire insurance brokerage USI Insurance Services from KKR, with the transaction expected to close in Q4 and become accretive to adjusted earnings no earlier than 2028. The deal, aimed at expanding Aon's presence in the US middle-market insurance segment, triggered a 7.4% drop on the announcement date and has continued to pressure shares since. In early September, multiple investment banks lowered their price targets: Jefferies cut to $387 from $414, Piper Sandler reduced to $349 from $391 while maintaining a neutral rating, Mizuho lowered to $398, and BMO Capital trimmed to $360 from $375.

The broader insurance brokerage sector traded lower across the board, with Marsh down 1.91%, Willis Towers Watson down 3.25%, Arthur J. Gallagher down 2.66%, Brown & Brown down 2.10%, and Ethos Technologies down 5.91%.

(The above content is based on publicly available market information, generated by a program or algorithm, and is intended solely as a stock movement alert. It does not constitute investment advice or a basis for trading decisions.)