Welcome to our dedicated page for Aon plc SEC filings (Ticker: AON), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Aon plc filings document the regulatory record of an Ireland-domiciled public company with Class A ordinary shares listed on the New York Stock Exchange. Its Form 8-K reports cover material events and securities information, including registered share classes, senior notes and guarantees associated with Aon plc, Aon Corporation, Aon Global Holdings plc and Aon North America, Inc.
Proxy materials describe board governance, shareholder voting matters, executive compensation and pay-versus-performance disclosures. Form 25 filings document exchange removal and registration withdrawal for maturing or withdrawn senior-note classes, while recurring filings provide formal disclosure on capital structure, governance and public-company reporting obligations.
Aon plc filed a Form 8-K to provide investors with a press release announcing its results of operations for the quarter and year ended December 31, 2025. The company is using this current report to formally furnish that earnings information.
The press release is attached as Exhibit 99.1, making the detailed financial and operating results for the 2025 fourth quarter and full year available through the filing. No additional financial statements or pro forma information are included in this report.
Aon plc disclosed that Aon Corporation entered into a separation agreement with Eric Andersen in connection with his departure from the company effective January 31, 2026. Andersen had previously moved from President of Aon plc and Aon Corporation to the role of Senior Advisor in March 2025.
Under the separation agreement, Andersen will receive a cash lump sum equal to his 2025 target annual incentive under the company’s annual incentive compensation plan. Certain outstanding performance share units (LPP 19 PSUs, 3x3PP PSUs and Special PSUs) will be forfeited, while other awards (LPP 18 PSUs and 2023 ISP RSUs) will vest in the first quarter of 2026 without any continued employment requirement. His 2025 ISP RSUs will vest no later than February 13, 2026, in exchange for a general release of claims and compliance with the agreement’s terms.
Aon plc disclosed a new amended and restated employment agreement with President and CEO Gregory C. Case, renewing his role through December 31, 2030, unless ended earlier under its terms. He will continue to serve as CEO of both Aon plc and Aon Corporation and is expected to be nominated for re-election to the board at each annual general meeting during this period.
The agreement raises Mr. Case’s annual base salary to $1,750,000 and keeps him eligible for a target bonus of at least 250% of base salary, with the actual bonus set by the independent directors. He will also receive performance share units with a grant date target value of $50 million under Aon’s 2011 Incentive Plan. Between 0% and 200% of the target units can be earned based on organic revenue growth, adjusted operating margin and free cash flow over a five-year period from January 1, 2026 to December 31, 2030, capped at 100% if absolute total shareholder return is negative. The agreement includes two-year non-compete and non-solicitation covenants and customary confidentiality and intellectual property terms.
Aon plc is removing its 3.875% Senior Notes due 2025 from listing and registration on the New York Stock Exchange LLC under Section 12(b) of the Securities Exchange Act of 1934. The notification is made on SEC Form 25, with the NYSE identified as the filing party.
The NYSE states that it has complied with its own rules to strike this class of securities from listing and/or withdraw its registration. It also notes that Aon plc has complied with the Exchange’s rules and with 17 CFR 240.12d2-2(c) governing the voluntary withdrawal of this class of securities from listing and registration.
Aon plc (AON) director Lester Knight reported a stock gift under a Form 4 filing. On 12/05/2025, he transferred 7,878 Class A Ordinary Shares to a charitable foundation where he and his spouse serve as trustees, a transaction coded as a gift and priced at $0 per share.
After this transaction, he reported indirect beneficial ownership of 26,033 Class A Ordinary Shares through a personal revocable trust, 124,604 shares held indirectly through his wife, and 139,000 shares held indirectly through a family partnership, along with 3,739 shares directly held. The filing indicates it was made by one reporting person in his capacity as a director of Aon plc.
AON plc has a planned sale of 700 Class A shares under Rule 144 through Fidelity Brokerage Services LLC on or about 11/25/2025, to be executed on the NYSE. The aggregate market value of the shares listed for sale is $245,238.07. These shares were acquired as restricted stock vesting from the issuer as compensation on three dates in 2025, in amounts of 567, 102 and 31 shares. Shares of Class A outstanding were 214,935,265 at the time referenced.
Aon plc Chief Commercial Officer Anne Corona reported routine equity compensation activity. On 11/21/2025, a restricted share unit award converted into 132 Class A Ordinary Shares upon vesting. These shares were issued under the Aon plc 2011 Incentive Compensation Plan, with the award originally granted on November 21, 2022 and vesting in three equal annual installments.
To cover taxes owed at vesting, 65.444 Class A Ordinary Shares were withheld by Aon at a price of $346.51 per share. After these transactions, Anne Corona beneficially owned 2,224.077 Class A Ordinary Shares directly. The restricted share units converted to shares on a 1-for-1 basis, with the reporting person agreeing to pay the nominal value of $0.01 per share in line with Irish law.
Aon plc executive Lori Goltermann, CEO, Regions & North America, reported equity transactions in company stock. On 11/21/2025, a restricted share unit award vested, converting 156 Class A Ordinary Shares to common stock. Of these, 68.093 shares were withheld by Aon to cover taxes related to the vesting at a price of $346.51 per share. Following these transactions, Goltermann directly beneficially owned 2,255.494 Class A Ordinary Shares. The restricted share units converted on a 1-for-1 basis under Aon’s 2011 Incentive Compensation Plan, with the award originally granted on November 21, 2022 and vesting in three equal annual installments.
Aon plc reported a routine equity compensation transaction by its Global CEO, Solution Lines. On 11/21/2025, the executive acquired 86 Class A Ordinary Shares through the vesting of a restricted share unit award and simultaneously had 41.881 shares withheld by the company to cover taxes at a price of $346.51 per share. After these transactions, the executive directly beneficially owned 1,677.408 Class A Ordinary Shares. The underlying restricted share unit award had been granted in 2022 and vests in three equal annual installments under Aon’s 2011 Incentive Compensation Plan.
Aon plc (AON) Chief Operating Officer Mindy Simon reported the vesting of a restricted share unit award on November 14, 2025. The award converted 1,970 restricted share units into Class A ordinary shares on a 1-for-1 basis. Of these shares, 606.213 Class A ordinary shares were withheld by Aon to cover taxes at a price of $350.13 per share. Following these transactions, Simon directly beneficially owns 3,179.421 Class A ordinary shares. The original restricted share unit grant, made on November 15, 2022 under the Aon plc 2011 Incentive Compensation Plan, vests in three equal annual installments.