Aon plc (AON)
As-reported financials and SEC filings for Aon plc. The latest annual period is FY2025. The latest reported quarter is Q2 FY2026. Financial statements come straight from the company’s EDGAR filings; valuation figures such as P/E and market cap use market data.
About Aon plc
Aon plc is a global professional services firm that provides risk management, insurance brokerage, reinsurance, and human capital consulting services. Its main business segments are Risk Capital, which offers insurance and reinsurance brokerage and consulting, and Human Capital, which delivers health, benefits, talent advisory, and retirement consulting services. Aon serves clients in over 120 countries across various industries and market segments.
Snapshot
Fundamentals are from SEC filings for FY2025, the latest annual period (ended December 31, 2025). P/E and market cap are derived from stored market prices, last retrieved on a rolling basis and typically within the past week.
What changed at Aon
- Revenue grew 9.4% to $17.2B in FY2025, slower than the 17.4% the year before.
- Operating margin is 25.3% in FY2025, +8.1 pp against 17.1% in FY2021.
- Most recent quarter Q2 FY2026: revenue $4.2B, up 2.2% from Q2 FY2025.
- Free cash flow was $3.2B in FY2025, 18.7% of revenue.
- Net income rose 39.2% to $3.7B in FY2025.
Computed from the as-reported figures in the statements below. A change we cannot state from filed figures is left out rather than estimated.
Peer comparison
Where Aon’s fundamentals sit among the 88 insurance companies. Each figure is ranked only against peers that report it, from lowest (left) to highest (right).
Aon’s return on equity of 39.1% ranks in the 99th percentile of the 73 insurance companies reporting it. Aon’s long-term debt to equity of 1.55 ranks in the 94th percentile of the 48 insurance companies reporting it. Aon’s operating margin of 25.3% ranks in the 85th percentile of the 27 insurance companies reporting it.
6 reported insider purchases (code P) totaling $6.5M in the last 90 days, against 3 sales totaling $717,750. For context, about 15% of companies in the universe saw any reported insider purchase (code P) in the same window. Browse insider activity →
Percentiles describe where a figure sits among industry peers reporting it (100th = highest). They are position within a peer group, not a rating, and not investment advice. Short interest ranking uses days to cover from FINRA Consolidated Short Interest data; FINRA is the owner and source of that data, included at no additional charge.
Recent insider activity
Non-derivative buys and sells (codes P/S) reported by officers, directors and 10% owners on SEC Form 4.
| Trade date | Insider | Type | Shares | Price | Value |
|---|---|---|---|---|---|
2026-09-02 filed 2026-09-03 | Lester B. KnightDirector | Buy | 7.2K | $327.52 | $2.4M |
2026-09-02 filed 2026-09-03 | Lester B. KnightDirector | Buy | 5.1K | $326.53 | $1.7M |
2026-09-02 filed 2026-09-03 | Lester B. KnightDirector | Buy | 4.1K | $328.34 | $1.4M |
2026-09-02 filed 2026-09-03 | Lester B. KnightDirector | Buy | 1.7K | $325.63 | $566K |
2026-09-02 filed 2026-09-03 | Lester B. KnightDirector | Buy | 1.4K | $329.69 | $475K |
2026-09-02 filed 2026-09-03 | Lester B. KnightDirector | Buy | 367 | $330.51 | $121K |
2026-07-28 filed 2026-07-30 | Darren ZeidelGeneral Counsel | Sell | 725 | $378.00 | $274K |
2026-07-28 filed 2026-07-30 | Darren ZeidelGeneral Counsel | Sell | 700 | $376.00 | $263K |
2026-07-28 filed 2026-07-30 | Darren ZeidelGeneral Counsel | Sell | 475 | $380.00 | $181K |
2026-07-17 filed 2026-07-21 | Darren ZeidelGeneral Counsel | Sell | 675 | $374.00 | $252K |
2026-07-17 filed 2026-07-21 | Darren ZeidelGeneral Counsel | Sell | 650 | $372.00 | $242K |
2026-07-17 filed 2026-07-21 | Darren ZeidelGeneral Counsel | Sell | 625 | $370.00 | $231K |
Reported non-derivative purchases and sales (codes P/S), which may be open-market or private. Excludes option exercises, grants, and shares withheld for taxes. Dates shown are the trade date; a Form 4 can be filed days to years later. A sale can be routine (e.g. a pre-set 10b5-1 plan), so read individual transactions in context. From SEC Form 4. Not investment advice.
Short interest
Total shares sold short as of each twice-monthly FINRA settlement. Rising short interest means more investors are positioned against the stock; days to cover estimates how many trading days of average volume that position represents.
| Settlement | Shares short | Change | Days to cover |
|---|---|---|---|
| 2026-09-30 | 4.2M | +14.3% | 1.76 |
| 2026-09-15 | 3.7M | -2.2% | 1.75 |
| 2026-08-31 | 3.8M | +12.2% | 4.44 |
| 2026-08-14 | 3.4M | -31.5% | 3.60 |
| 2026-07-31 | 4.9M | +8.0% | 3.05 |
| 2026-07-15 | 4.6M | +23.2% | 4.04 |
| 2026-06-30 | 3.7M | +2.9% | 1.61 |
| 2026-06-15 | 3.6M | +20.0% | 2.41 |
Source: FINRA Consolidated Short Interest. FINRA is the owner and source of the FINRA-supplied data, which is included at no additional charge for your own personal or professional use; republishing or redistributing it is not permitted. Settlement dates are shown; FINRA publishes each settlement about nine business days later, so the latest figure can be two to four weeks old. Not presented as a percentage of float. No FINRA endorsement of this product is implied. Not investment advice.
Income statement (as reported)
| FY2025 | FY2024 | FY2023 | FY2022 | FY2021 | |
|---|---|---|---|---|---|
| Revenue | $17.18B | $15.70B | $13.38B | $12.48B | $12.19B |
| Gross profit | — | — | — | — | — |
| Operating income | $4.34B | $3.83B | $3.79B | $3.67B | $2.09B |
| Pre-tax income | $4.76B | $3.46B | $3.17B | $3.16B | $1.93B |
| Net income | $3.69B | $2.65B | $2.56B | $2.59B | $1.25B |
| Diluted EPS | $17.02 | $12.49 | $12.51 | $12.14 | $5.55 |
Figures as reported to the SEC. Underlined values link to the filing they came from; dotted values are calculated by us from reported figures (free cash flow is operating cash flow minus capital expenditures, which can differ from a company’s own definition); “adj” means restated for a stock split (tap or hover a figure to see how it was calculated or what was filed). Diluted EPS includes discontinued operations where a company reports them. Cash & Equivalents excludes short-term investments and may include restricted cash where that is the figure the company tags. Full details: where the numbers come from.
Balance sheet (as reported)
| FY2025 | FY2024 | FY2023 | FY2022 | FY2021 | |
|---|---|---|---|---|---|
| Cash and equivalents | $1.20B | $1.08B | $778.0M | $690.0M | $544.0M |
| Current assets | $25.77B | $23.43B | $21.70B | $20.72B | $19.03B |
| Total assets | $50.78B | $48.97B | $33.96B | $32.70B | $31.92B |
| Current liabilities | $23.23B | $23.00B | $21.65B | $20.31B | $19.07B |
| Long-term debt | $14.66B | $16.27B | $9.99B | $9.82B | $8.23B |
| Total liabilities | $41.24B | $42.53B | $34.70B | $33.13B | $30.76B |
| Total equity | $9.46B | $6.30B | $-742.0M | $-429.0M | $1.16B |
Figures as reported to the SEC. Underlined values link to the filing they came from; dotted values are calculated by us from reported figures (free cash flow is operating cash flow minus capital expenditures, which can differ from a company’s own definition); “adj” means restated for a stock split (tap or hover a figure to see how it was calculated or what was filed). Diluted EPS includes discontinued operations where a company reports them. Cash & Equivalents excludes short-term investments and may include restricted cash where that is the figure the company tags. Full details: where the numbers come from.
Cash flow (as reported)
| FY2025 | FY2024 | FY2023 | FY2022 | FY2021 | |
|---|---|---|---|---|---|
| Operating cash flow | $3.48B | $3.04B | $3.44B | $3.22B | $2.18B |
| Capital expenditure | $263.0M | $218.0M | $252.0M | $196.0M | $137.0M |
| Free cash flow |
Figures as reported to the SEC. Underlined values link to the filing they came from; dotted values are calculated by us from reported figures (free cash flow is operating cash flow minus capital expenditures, which can differ from a company’s own definition); “adj” means restated for a stock split (tap or hover a figure to see how it was calculated or what was filed). Diluted EPS includes discontinued operations where a company reports them. Cash & Equivalents excludes short-term investments and may include restricted cash where that is the figure the company tags. Full details: where the numbers come from.
Quarterly trend
| Quarter | Revenue | Revenue YoY | Net income | Diluted EPS |
|---|---|---|---|---|
| Q2 FY2026 | $4.25B | 2.2% | $551.0M | $2.58 |
| Q1 FY2026 | $5.03B | 6.4% | $1.21B | $5.63 |
| Q4 FY2025 | 3.7% | |||
| Q3 FY2025 | $4.00B | 7.4% | $458.0M | $2.11 |
| Q2 FY2025 | $4.16B | 10.5% | $579.0M | $2.66 |
| Q1 FY2025 | $4.73B | 16.2% | $965.0M | $4.43 |
| Q4 FY2024 | 22.9% | |||
| Q3 FY2024 | $3.72B | 26.0% | $343.0M | $1.57 |
Latest 8 quarters, from company XBRL filings on SEC EDGAR. A dotted underline marks a fourth-quarter figure we calculated from the full year and the first nine months. Revenue YoY is our calculation too: each quarter against the same quarter a year earlier.
Company facts
Selected SEC filings
Largest insurance peers
AON head to head
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Data sourced from SEC EDGAR. Figures are as-reported and may be unaudited or restated; verify against the source filing before relying on them. Informational only. Not investment advice.