News & Events

Results of Operations and Financial Condition. On May 1, 2026 , Aon plc issued a press release (the “Press Release”) announcing its results of operations for the quarter ended March 31, 2026. A copy of the Press Release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

Results of Operations and Financial Condition. On January 30, 2026, Aon plc issued a press release (the “Press Release”) announcing its results of operations for the quarter and year ended December 31, 2025. A copy of the Press Release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers. Reference is hereby made to the Current Report on Form 8-K filed by Aon plc on March 17, 2025, which disclosed that on March 14, 2025, Eric Andersen had transitioned to the role of Senior Advisor from the role of President of Aon plc and Aon Corporation. On January 6, 2026, Aon Corporation, an indirect, wholly owned subsidiary of Aon plc (Aon plc t…

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers. On December 31, 2025, Aon plc (the “Company”) and Aon Corporation (“Aon Corp”) entered into an Amended and Restated Employment Agreement (the “Employment Agreement”) with Gregory C. Case, the Company’s President and Chief Executive Officer. The purpose of the Employment Agreement is to, among other things, renew and extend the term of Mr. Case’s em…

Results of Operations and Financial Condition. On October 31, 2025, Aon plc issued a press release (the “Press Release”) announcing its results of operations for the quarter ended September 30, 2025. A copy of the Press Release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers. On August 1, 2025, the Board of Directors (the “Board”) of Aon plc (the “Company”) increased the size of the Board to thirteen members and appointed Jo Ann Jenkins as a director of the Company, effective August 15, 2025. Ms. Jenkins will serve until the Company’s 2026 annual general meeting of shareholders, when she is expected to be subject to re-…

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers. On July 29, 2025, Aon plc (the “Company”) announced that David DeBrunner will join the Company as Senior Vice President, Global Controller and Chief Accounting Officer, effective September 15, 2025 (the “Effective Date”). As of the Effective Date, Mr. DeBrunner will serve as the Company’s principal accounting officer. Mr. DeBrunner will report to E…

Results of Operations and Financial Condition. On July 25, 2025, Aon plc issued a press release (the “Press Release”) announcing its results of operations for the quarter ended June 30, 2025. A copy of the Press Release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers. Amendment to International Assignment Letter On June 27, 2025, Aon Corporation (“Aon Corporation”), an indirect, wholly owned subsidiary of Aon plc (together with its subsidiaries, “Aon” or the “Company”), and Gregory C. Case entered into an amendment (the “Case Amendment”) to the international assignment letter agreement dated July 1, 2016 between…