Aon (AON) 8-KDeparture of Directors or Certain Officers

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): June 25, 2021

Aon plc

(Exact name of registrant as specified in its charter)

Metropolitan Building, James Joyce Street

Dublin 1, Ireland D01 K0Y85

(Address of principal executive offices)

Registrant’s telephone number, including area code: +353 1 266 6000

Former name or former address, if changed since last report: Not Applicable

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2 below):

Securities registered pursuant to Section 12(b) of the Act:

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 5.02            Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

On June 25, 2021, Aon plc (the “Company”) appointed James Platt to the position of Chief Operating Officer of the Company. Mr. Platt, age 49, joined the Company in September 2014 as the Chief Executive Officer of Aon Inpoint and Head of Data & Analytics for Aon Risk Solutions and served in that role until December 2016. From January 2017 through June 2019, Mr. Platt served as the Chief Operating Officer of Aon Risk Solutions, and then from June 2019 through September 2020, as the Company’s Global Solution Lines Chief Operating Officer. Since September 2020, Mr. Platt has served as the Company’s Business Chief Operating Officer.

There is no arrangement between Mr. Platt and any other person pursuant to which he was selected as the Chief Operating Officer. There are no familial relationships or related party transactions with the Company that would require disclosure under Items 401(d) or 404(a) of Regulation S-K in connection with Mr. Platt’s appointment.

Also on June 25, 2021, the Company announced Anthony Goland is stepping down as a Section 16 officer. He will continue to lead Aon’s New Ventures Group.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.