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's SEC filings provide detailed disclosure of how one of the world's largest insurance brokers and risk consultants structures its business across multiple service lines and geographic markets. The company's 10-K annual report breaks down revenue contributions from Commercial Risk Solutions, Reinsurance Solutions, Retirement Solutions, and Health Solutions segments, allowing investors to understand which business lines drive growth and profitability. These segment disclosures reveal margin differences between commission-based insurance brokerage and fee-based consulting work.
For a professional services firm operating globally, Aon's filings contain extensive discussion of regulatory compliance requirements across different jurisdictions, including licensing obligations, compensation disclosure rules, and data privacy mandates. The company's 10-Q quarterly reports track performance trends across geographic regions, offering visibility into how insurance market conditions in the Americas, EMEA, and Asia Pacific affect revenue and organic growth rates quarter by quarter.
Form 4 insider transaction filings document when Aon executives and directors buy or sell company shares, providing transparency into management's confidence in the business. Given that senior leaders at professional services firms often hold substantial equity stakes, these transactions can signal perspectives on valuation and company prospects. AI-powered summaries on this platform highlight significant insider trading patterns without requiring manual review of individual Form 4 submissions.
Aon's 8-K current reports disclose material events such as major acquisitions, leadership transitions, or changes to the company's credit facilities. For a firm that grows partly through acquiring specialized risk consulting practices, 8-K filings documenting these transactions provide insight into Aon's strategy for expanding service capabilities in areas like cyber risk, climate analytics, or human capital consulting. Proxy statements, filed as DEF 14A, detail executive compensation structures, revealing how Aon aligns leadership incentives with metrics like organic revenue growth, margin expansion, and client retention—key performance indicators for professional services businesses.
Aon plc (AON) disclosed a Form 4 showing insider sales by General Counsel Darren Zeidel on 11/05/2025. He sold 7,570 Class A ordinary shares at a weighted average price of $344.42 and 1,230 shares at a weighted average price of $345.17.
Following these transactions, Zeidel beneficially owned 20,253.161 shares directly. Prices reflect multiple same‑day trades within reported ranges.
AON: A holder filed a Form 144 notice to sell up to 8,800 Class A shares. The filing lists an aggregate market value of 3,031,815.23 and an approximate sale date of 11/05/2025 on the NYSE through Fidelity Brokerage Services LLC.
The shares were acquired via restricted stock vesting from the issuer on 02/16/2023 (5,300) and 02/13/2025 (3,500). Shares outstanding were 214,935,265.
Aon plc reported third‑quarter results in a Form 10‑Q. Revenue rose to $3.997 billion from $3.721 billion, and diluted EPS increased to $2.11 from $1.57. Operating income was $816 million, up from $623 million, as Compensation and benefits reached $2.259 billion and Amortization and impairment of intangibles increased to $193 million. The Accelerating Aon United Program recorded $32 million in Q3 expenses and $236 million year‑to‑date.
For the first nine months, revenue was $12.881 billion versus $11.551 billion, with net income attributable to shareholders of $2.002 billion. Cash provided by operating activities totaled $2.084 billion. Aon completed the $418 million acquisition of Griffiths & Armour on January 1, 2025.
Aon signed a definitive agreement on September 3, 2025 to sell a significant portion of NFP’s wealth businesses; related assets of $1.3 billion and liabilities of $166 million were classified as held for sale at quarter‑end. The sale closed on October 30, 2025 with total proceeds of $2.3 billion, with the gain to be recognized in Other income. Class A ordinary shares outstanding were 214,935,265 as of October 30, 2025.
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 officer David J. DeBrunner submitted an Initial Statement of Beneficial Ownership (Form 3) reporting his relationship to the issuer as an officer with the title Principal Accounting Officer and as a director. The filing, covering the event date 09/15/2025, shows zero Class A ordinary shares beneficially owned (direct ownership reported as 0). The Form 3 was signed on behalf of Mr. DeBrunner by Colby Alexis under a power of attorney and dated 09/23/2025. No derivative securities or indirect ownership are disclosed in the filing.
Aon plc (AON) Form 3 shows that Jo Ann Jenkins, identified as a Director, reported her initial beneficial ownership filing related to an event on 08/15/2025. The filing lists 0 Class A Ordinary Stock beneficially owned in a direct capacity. The form was executed on behalf of Ms. Jenkins by Colby Alexis pursuant to a power of attorney.
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