Item 9B. Other Information

On November 5, 2025, Darren Zeidel, Executive Vice President, General Counsel and Company Secretary, adopted a new Rule 10b5-1 trading plan intended to satisfy the affirmative defense in Rule 10b5-1(c). The plan’s maximum length is until February 2, 2027 and first trades were not permitted to occur until February 3, 2026, at the earliest. The plan is intended to permit Mr. Zeidel to sell 5,650 and 7,021 class A ordinary shares of Aon received pursuant to the vesting of certain equity awards, net of any shares withheld for taxes.