Aon to Acquire USI Insurance from KKR in Landmark $17 Billion Deal

Key Facts

1KKR announced a definitive agreement to sell USI Insurance Services to Aon plc for a total consideration of $17 billion.

2USI is part of KKR's Strategic Holdings portfolio and was the firm's first core private equity investment.

In a move reflecting the accelerating pace of mega-mergers within the financial services sector, KKR has announced a definitive agreement to sell USI Insurance Services to Aon plc for $17 billion. This transaction marks a strategic exit for KKR from its first core private equity investment, as USI has been a foundational part of the firm's Strategic Holdings portfolio. The acquisition is designed to expand Aon’s leadership in risk management and employee benefits consulting by integrating USI’s specialized capabilities.

The deal arrives amidst structural shifts in the insurance brokerage and consulting industry aimed at increasing operational scale. According to market data, this exit represents a significant value realization for KKR following a long-term investment in USI as a core asset. This transaction, which exceeds the $5 billion threshold for major M&A, positions Aon more competitively against global peers, though the deal's size and market impact may invite close regulatory scrutiny.

Regarding equity performance, AON shares stood at $349.56 at the close of August 27, 2026, while KKR (trading as 0Z1W.L) was priced at $109.09 as of the same date. With no immediate sector-specific catalysts in the upcoming economic calendar, traders will focus on the closing timeline and regulatory approvals. Aon's stock experienced a range between $348.03 and $352.88 during the August 27 session, highlighting market sensitivity to this major strategic expansion.