Aon plc and its subsidiaries have entered into an underwriting agreement to sell a total of $14.5 billion in aggregate principal amount of senior notes. The offering includes six series of notes with varying maturities ranging from 2029 to 2056.

The notes are being issued by Aon North America, Inc., Aon Global Holdings plc, and Aon plc, with full guarantees provided by Aon Corporation, Aon Global Limited, and Aon plc. The debt is senior unsecured and will be issued pursuant to an indenture dated March 1, 2024, as supplemented by a Second Indenture Supplement dated September 17, 2026.

The specific terms of the issuance are as follows:

Interest on all notes is payable semi-annually. The Issuers have the option to redeem the notes prior to specific par call dates, with the redemption price determined by the greater of the present value of remaining payments plus a specified spread or 100% of the principal amount.

The net proceeds from the offering, after deducting underwriting discounts and estimated expenses, are approximately $13.4 billion. The Issuers intend to use these funds for general corporate purposes. Specifically, the proceeds will be combined with a term loan facility and cash on hand to pay cash consideration for the previously announced acquisition of USI Advantage Corp., to repay indebtedness of USI and its subsidiaries, and to pay associated fees and expenses.