Aon plcAON
Aon plc Financial Overview 2021–2025
Updated Jul 10, 2026Aon's diluted earnings per share surged 36% to $17.02 in FY2025, proving the firm can digest large-scale acquisitions without permanently sacrificing bottom-line profitability. The core investment thesis is clear: Aon is successfully scaling its risk and human capital operations through aggressive M&A while relying on strict operational discipline to expand its margins.
The company's top line illustrates a steady structural expansion, as total revenue grew from $12.2 billion in FY2021 to $17.2 billion in FY2025. This long-term arc was supercharged by the $9.1 billion acquisition of NFP, which temporarily pressured profitability but drove a 17% revenue increase in FY2024. By FY2025, Aon had stabilized these integration costs, pushing its operating margin back up to 25.3% from 24.4% the prior year. Strong core operations also generated $3.2 billion in free cash flow, representing a 14% year-over-year increase that funded $1.0 billion in share repurchases during the period.
Investors rewarded this integration success and the underlying 6% organic revenue growth across the business. At the close of FY2025, Aon traded at $352.88 per share, carrying a 20.7x price-to-earnings ratio. This market valuation reflects confidence that Aon's ongoing restructuring program—targeting $450 million in annualized savings by the end of 2027—will continue to convert acquired scale into enhanced shareholder returns.
Recent Developments (Q4 2025 and Q1 2026)
Aon capped off Q4 2025 by securing a $1.2 billion pre-tax gain from the sale of NFP's wealth businesses, rolling that momentum into Q1 2026. The company opened the year with a 10% revenue jump in its Risk Capital segment, pushing the segment's operating margin to 39.5%. Overall Q1 2026 revenue reached $5.03 billion, marking a 6% increase year-over-year. Net income surged 26% to $1.21 billion, lifting quarterly diluted earnings per share to $5.63. Operating cash flow jumped 207% to $430 million, directly funding $500 million in first-quarter share repurchases.
The board recently authorized a $7.5 billion share repurchase program and extended the CEO's contract through June 30, 2027. Bulls argue that accelerating cash generation makes the stock attractive at 18.3x earnings as of May 1, 2026. Bears counter that shareholder rejection of the latest executive compensation plan signals governance friction, and the Human Capital segment experienced a 1% revenue decline in Q1 2026.
What to watch: Human Capital revenue trends; deployment pace of the $7.5 billion share repurchase program
Rev
$17.18B
FY2025
NI
$3.75B
FY2025
EPS
$17.11
FY2025
OCF
$3.48B
FY2025
Year-over-year comparison from 10-K annual reports
Data from SEC Company Facts
Recent SEC Filings
Aon plc 8-K Report, Executive Changes (Jul 1, 2026)
This 8-K filing from Aon plc details two primary events: an amendment to Gregory C. Case's international assignment letter and the outcomes of the company's Annual Shareholder Meeting. The amendment to Mr. Case's letter extends his assignment term by one year, to June 30, 2027, indicating continued executive commitment. At the Annual Meeting, all 13 director nominees were overwhelmingly elected. However, a significant development was the advisory vote on executive compensation, which shareholders did not approve. Further key outcomes from the meeting include the ratification of Ernst & Young LLP as the independent registered public accounting firm and Ernst & Young Chartered Accountants as the statutory auditor. The shareholders also approved the board's authority to determine auditor remuneration, and granted the board authorization to issue shares and opt-out of statutory pre-emption rights for a period of 18 months. Notably, on June 26, 2026, the Board of Directors approved an additional $7.5 billion for share repurchases, augmenting the existing program.
Aon plc 8-K Report, Financial Results (May 1, 2026)
Aon plc filed an 8-K on May 1, 2026, to report its financial results for the first quarter ended March 31, 2026. The primary purpose of this filing is to provide investors with the company's operational performance and financial condition for the period, as detailed in the accompanying press release. Investors should refer to the press release (Exhibit 99.1) for specific financial metrics and commentary on the company's performance. While the 8-K itself does not contain the detailed financial statements or management's discussion and analysis, it formally incorporates the press release which serves as the official disclosure of Aon's quarterly results. This filing is a standard procedure for publicly traded companies to promptly disseminate material information regarding their financial performance to the market.
Aon plc 8-K Report, Financial Results (Jan 30, 2026)
Aon plc (AON) filed an 8-K report on January 30, 2026, to announce its fourth quarter and full year 2025 financial results. The report primarily incorporates by reference a press release issued on January 31, 2025, detailing the company's performance for the periods ending December 31, 2025. Investors should refer to the attached press release (Exhibit 99.1) for specific financial figures, operational performance insights, and management's commentary on the results.
Aon plc 8-K Report, Executive Changes (Jan 7, 2026)
Aon plc (AON) has filed an 8-K detailing the formal separation agreement with its former President, Eric Andersen. This agreement, effective January 31, 2026, outlines the financial and equity provisions associated with Mr. Andersen's departure. Investors should note that Mr. Andersen will receive his 2025 target annual incentive in cash and specific equity awards will be treated according to the agreement, with some forfeitures and accelerated vesting periods. The filing clarifies the terms of Mr. Andersen's departure, which was previously announced in March 2025 when he transitioned to a Senior Advisor role. The separation benefits are contingent upon Mr. Andersen's agreement to a general release of claims and adherence to the separation terms. While this 8-K primarily addresses the administrative aspects of his departure and compensation, it's important for investors to understand the final financial arrangements related to this executive transition.
Aon plc 8-K Report, Executive Changes (Jan 2, 2026)
Aon plc (AON) has filed an 8-K report detailing an Amended and Restated Employment Agreement with its President and CEO, Gregory C. Case. This agreement extends Mr. Case's tenure through December 31, 2030, ensuring leadership continuity. Key changes include an increase in his annual base salary to $1,750,000 and continued eligibility for a target bonus of at least 250% of base salary. The agreement also provides for Mr. Case's nomination for re-election to the Board of Directors throughout the term. Crucially, Mr. Case will receive a significant long-term incentive award in the form of performance share units (PSUs) with a target value of $50 million. The vesting of these PSUs is tied to specific performance metrics, including organic revenue growth, adjusted operating margin, and free cash flow over a five-year period. The award also includes a provision that caps the earned units at 100% of the target if Aon's absolute Total Shareholder Return (TSR) is negative over the performance period, aligning executive compensation with shareholder value.
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