Every 8-K that Aon Plc (AON) has filed with the SEC in the last 24 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A 8-K covers material events a company has to report between its quarterly reports, so if you follow AON and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full AON filings page.
Aon plc (AON) announced a definitive agreement to acquire USI Advantage Corp. for a cash purchase price of $17.0 billion (net purchase price $16.7 billion after certain tax attributes). USI is a major U.S. middle‑market insurance broker with about $3.0 billion in annual revenue and more than 10,500 employees. Closing is expected in the fourth quarter of 2026, subject to regulatory approvals and other customary conditions.
Aon targets $395 million of net Adjusted EBITDA synergies, including $321 million net revenue synergies and $280 million cost synergies, expected to be substantially realized between closing and 2029. On this basis, USI’s synergized Adjusted EBITDA is estimated at $1.2 billion, implying a net purchase multiple of about 14.5x. The company expects the deal to be dilutive to adjusted EPS in 2027 and accretive in 2028 and thereafter.
Aon plans to fund the acquisition entirely with new debt across a range of maturities and aims to maintain its current investment‑grade ratings (Baa2/A-). Management plans to delever to a 2.8x–3.0x leverage objective within roughly 24 months of closing and does not expect near‑term share repurchases as it prioritizes debt repayment, while continuing a stable and growing dividend.
Aon plc reported a leadership change in its finance organization. Edmund Reese transitioned from his role as Executive Vice President and Chief Financial Officer effective August 17, 2026, and will serve as a senior advisor from that date through August 16, 2027 under a letter agreement with Aon Corporation.
Aon appointed Nadin Virani, 49, as interim Chief Financial Officer effective the same date. Virani has served as Global Head of Corporate Planning and Analytics since January 2025, and previously held senior finance roles at Broadridge Financial Solutions and American Express. During his interim CFO service, his current annual base salary will be increased by $50,000 per month until the end of the month in which a permanent CFO assumes the role, and he will be eligible for an additional cash bonus equal to the total additional base salary earned, payable within 30 days after his interim term ends. He will continue to participate in Aon’s standard employee benefit plans.
Aon plc reported Q2 2026 results with total revenue of $4.25 billion, up 2% year over year, and 5% organic revenue growth. Operating income rose to $915 million and operating margin expanded to 21.5%, while adjusted operating margin improved to 28.9% on adjusted operating income of $1.23 billion.
Diluted EPS declined 3% to $2.58, but adjusted EPS increased 9% to $3.81. Cash from operations was $556 million and free cash flow $483 million, down 30% and 34%, respectively, versus the prior-year quarter. The Risk Capital segment grew revenue 5% to $3.0 billion; Human Capital revenue decreased 4% to $1.24 billion.
Aon generated $986 million of operating cash flow and $846 million of free cash flow in the first half of 2026, up 5% and 4%, respectively. The company returned $775 million to shareholders in Q2, including $600 million of share repurchases, and reaffirmed 2026 guidance for mid-single-digit or greater organic growth, margin expansion and strong adjusted EPS and free cash flow growth.
Aon plc reported several governance and capital allocation updates. The Board of Directors approved an increase to the company’s share repurchase program, authorizing Aon to buy back an additional $7.5 billion of Class A Ordinary Shares, on top of approximately $0.8 billion of remaining authorization as of March 31, 2026. The program does not obligate Aon to repurchase any specific amount of shares.
The company held its Annual Meeting of Shareholders on June 26, 2026, with 195,430,939 Class A Ordinary Shares, or 91.51% of shares entitled to vote, represented in person or by proxy. Shareholders elected all nominated directors and voted on additional proposals described in the proxy statement. Aon Corporation and CEO Gregory C. Case also entered into an amendment extending his international assignment letter by one year to June 30, 2027.
Aon plc reported strong first‑quarter 2026 results, with total revenue rising 6% to $5.0 billion, driven by 5% organic revenue growth and a 4% favorable foreign currency impact, partly offset by divestitures. Operating income increased 17% to $1.7 billion and operating margin expanded to 34.1%, while adjusted operating margin improved to 39.1%.
Diluted EPS grew 27% to $5.63, and adjusted EPS rose 14% to $6.48, helped by foreign currency translation. Free cash flow jumped to $363 million, up 332%. Aon returned $662 million to shareholders through dividends and buybacks, repurchasing 1.5 million shares, and announced a 10% dividend increase while reaffirming 2026 guidance for organic growth, margin expansion, adjusted EPS growth and double‑digit free cash flow growth.
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 filed a Form 8‑K announcing its results of operations for the quarter ended September 30, 2025. The company furnished a press release as Exhibit 99.1, which is incorporated by reference.
The filing is presented under Item 2.02 (Results of Operations and Financial Condition) and includes Exhibit 104 (Cover Page Inline XBRL). Aon’s Class A ordinary shares trade on the NYSE under the symbol AON.
Aon plc closed the sale of a significant majority of the wealth businesses of its indirect subsidiary, NFP Corp., to Madison Dearborn Partners. The divested units include Wealthspire Advisors, Fiducient Advisors, Newport Private Wealth, and related platforms. The closing occurred on October 30, 2025.
The disclosure was provided under Item 7.01 and is being furnished, not filed, under the Exchange Act. No additional financial details were included in this notice.
Aon plc has entered into a definitive agreement to sell a significant majority of the wealth businesses of its indirect subsidiary NFP Corp. to Madison Dearborn Partners. The assets being sold include Wealthspire Advisors, Fiducient Advisors, Newport Private Wealth and related platforms.
The deal values the businesses at an estimated total consideration of $2.7 billion at closing and is expected to generate approximately $2.2 billion in after-tax cash proceeds for Aon. The transaction is expected to close in late Q4 2025, subject to customary closing conditions, including required regulatory approvals.