Aon plc

On March 8, 2024, Darren Zeidel, Executive Vice President, General Counsel and Company Secretary of the Company, adopted a new Rule 10b5-1 trading plan. The plan’s maximum length is until December 31, 2024 and first trades will not occur until June 7, 2024, at the earliest. The plan is intended to permit Mr. Zeidel to sell 3,299 and 3,298 class A ordinary shares of Aon in two separate transactions.

The Company is reporting the following information in lieu of reporting on a Current Report on Form 8-K:

Disclosure Pursuant to Item 2.03 of Form 8-K: Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant.

On April 25, 2024, Aon North America, Inc. drew in full its $2 billion delayed draw term loan facility (the “Term Loan Facility”) pursuant to the Term Loan Credit Agreement dated as of February 16, 2024 (as amended, the “Term Loan Agreement”), among Aon North America, Inc., Aon, Aon Corporation, Aon Global Holdings plc, Aon Global Limited, Citibank, N.A., as administrative agent, and the lenders party thereto. The proceeds of the Term Loan Facility were used to pay a portion of the cash consideration in connection with the NFP acquisition, to repay certain debt of NFP and to pay related fees and expenses.

The Term Loan Facility will mature on April 23, 2027, and includes customary representations, warranties and covenants, including financial covenants that require Aon to maintain specified ratios of adjusted consolidated EBITDA to consolidated interest expense and consolidated debt to adjusted consolidated EBITDA, in each case, tested quarterly.

The foregoing summary is qualified in its entirety by reference to the Term Loan Agreement and Amendment No. 1 to the Term Loan Agreement, copies of which are filed herewith as Exhibit 10.4 and Exhibit 10.5, respectively, and incorporated herein by reference.