Aon plc (AON) Stock
NYSEAON has an Alpha Score of 49 out of 100 (weak), computed on Oct 26, 2026 from 3 of 4 sub-scores. 12 members of Congress disclosed 30 trades in AON since 2014: 15 purchases and 15 sales, most recently Alan Armstrong (purchase, Mar 27, 2026). Company insiders reported 6 open-market buys and 0 sales on SEC Form 4 in the 90 days to Oct 30, 2026. Its trailing P/E ratio is 16.0 and its net margin 22.3% (key statistics as of Oct 22, 2026).
What is AON's Alpha Score?
How it works →Alpha Score of 49 reflects weak overall profile with moderate momentum, weak value, strong quality. Based on 3 of 4 signals – score is capped at 90 until remaining data ingests.
Computed from 3 of 4 sub-scores; a sub-score is left out when its inputs are missing, and the composite is capped accordingly.
Computed Oct 26, 2026
A rules-based research rating, not a recommendation to buy or sell.
Which members of Congress traded Aon plc (AON)?
Most recent: Alan Armstrong (purchase, Mar 27, 2026); records start Mar 12, 2014.
| Politician | Trade date | Type | Amount |
|---|---|---|---|
| Alan Armstrong R-OK · Senate | 2026-03-27 | purchase | $1k – $15k |
| Tom Kean Jr. R-NJ · House | 2025-05-27 | purchase | $1k – $15k |
| Jefferson Shreve R-IN · House | 2025-05-08 | sale | $15k – $50k |
| Jefferson Shreve R-IN · House | 2025-03-13 | purchase | $15k – $50k |
| Kathy Manning D-NC · House | 2024-07-02 | partial sale | $1k – $15k |
| Kathy Manning D-NC · House | 2024-07-02 | partial sale | $15k – $50k |
| Tom Kean Jr. R-NJ · House | 2024-05-06 | purchase | $1k – $15k |
| Kathy Manning D-NC · House | 2024-01-23 | purchase | $1k – $15k |
From STOCK Act periodic transaction reports. House filings as of Oct 29, 2026. Senate records here end Oct 21, 2026; later Senate trades are not included.
See all AON political trades →Are Aon plc insiders buying or selling?
SEC Form 4 filings| Date | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| Sep 2, 26 | Knight Lester B | Director | BUY | 1.7K | $566K |
| Sep 2, 26 | Knight Lester B | Director | BUY | 5.1K | $1.7M |
| Sep 2, 26 | Knight Lester B | Director | BUY | 7.2K | $2.4M |
| Sep 2, 26 | Knight Lester B | Director | BUY | 4.1K | $1.4M |
| Sep 2, 26 | Knight Lester B | Director | BUY | 1.4K | $475K |
| Sep 2, 26 | Knight Lester B | Director | BUY | 367 | $121K |
| Jul 28, 26 | Zeidel Darren | General Counsel | SELL | 700 | $263K |
| Jul 28, 26 | Zeidel Darren | General Counsel | SELL | 725 | $274K |
| Jul 28, 26 | Zeidel Darren | General Counsel | SELL | 475 | $181K |
| Feb 26, 26 | Zeidel Darren | General Counsel | SELL | 4.3K | $1.4M |
SEC Form 4 filings as of Oct 30, 2026
See cluster-buy signals across all tickers →What are AON's key statistics?
Key statistics as of Oct 22, 2026
How does AON's valuation compare with the Financials sector?
| Metric | AON | Financials median | Companies in median |
|---|---|---|---|
| P/E ratio | 16.0 | 13.3 | 196 |
| Net margin | 22.27% | 20.11% | 186 |
| Return on equity | 42.63% | 12.61% | 207 |
| Dividend yield (payers) | 0.75% | 3.28% | 157 |
Medians over the Financials stocks whose key statistics were refreshed in the last 35 days (newest Nov 2, 2026). P/E excludes loss-making companies.
AON price chart
Powered by TradingViewWhat does Aon plc do?
Aon plc is a British-American professional services firm specializing in risk management, insurance brokerage, and human capital solutions. The company operates through two primary divisions: Risk Capital, which provides commercial risk solutions, specialty brokerage services, reinsurance intermediation, and capital advisory; and Human Capital, which offers health insurance consulting, retirement and pension plan services, talent advisory, and employee benefits solutions. Aon serves organizations and individuals across more than 120 countries, leveraging proprietary data and analytics to help clients identify, quantify, and manage risk exposure while optimizing workforce strategies. The firm provides advisory services spanning commercial risk transfer, structured solutions, investment management, and claims advocacy. As the second-largest insurance broker globally, Aon delivers integrated capabilities that help clients make informed decisions to protect and grow their businesses in an increasingly complex and volatile market environment.