NYSE · Insurance Agents, Brokers & Service

Aon plc (AON)

Aon's next earnings date, recent SEC filings, insider trades and reported financials, with end-of-day prices. Every number carries its date and source.

Last close

$272.00

−2.18% 1 day−22.6% 52 weeks

As of Sep 28, 2026, end of day (IEX). Not a live quote.

AON · one year of daily closes

Sep 25, 2025 to Sep 28, 2026 · end of day · IEX

AON daily closing prices from Sep 25, 2025 to Sep 28, 2026: low $272.00, high $381.34, last $272.00. End of day, IEX.

Closing prices, split-adjusted, from trades on the IEX exchange (published the next trading day). Data provided for free by IEX. By accessing or using IEX Historical Data, you agree to the IEX Historical Data Terms of Use.

Key facts

1-day change
−2.18%
From $278.05 the session before
52-week change
−22.6%
Close vs close ~252 sessions earlier
52-week range
$272.00–$381.34
Lowest and highest closing prices
Market cap
$57.7B
Last close × shares outstanding (SEC)
Revenue (TTM)
$17.6B
12 months to Jun 30, 2026
Net income (TTM)
$3.9B
12 months to Jun 30, 2026
Diluted EPS (TTM)
$18.14
12 months to Jun 30, 2026

Financials: trailing twelve months from Aon’s reported US-GAAP figures, SEC EDGAR XBRL company facts, period ended Jun 30, 2026.

Recent SEC filings

  1. Sep 22, 20268-KCurrent report: Material agreement; Termination of a material agreement; New direct financial obligation
  2. Sep 17, 20268-KCurrent report: Other events
  3. Sep 11, 20268-KCurrent report: Other events
  4. Aug 31, 20268-KCurrent report: Material agreement; Regulation FD disclosure
  5. Aug 17, 20268-KCurrent report: Executive or director change
  6. Jul 29, 202610-QQuarterly report for the period ended Jun 30, 2026
  7. Jul 29, 20268-KCurrent report: Earnings results
  8. Jul 1, 20268-KCurrent report: Executive or director change; Shareholder vote results; Other events

Source: SEC EDGAR. Each line is written from the form type and the official 8-K item titles; open the filing for the full text. All AON filings on EDGAR

Next earnings

~Oct 30, 2026Estimated

Past results were usually filed before the open

Estimated from past filing dates. Aon hasn't announced this date; Vero projects it from the rhythm of its past SEC filings, so treat it as approximate.

Estimated from SEC EDGAR filing dates

Insider activity (last 90 days)

Open-market buys
1
filing · 20,000 shares
Open-market sales
3
filings · 4,450 shares

Source: SEC EDGAR Form 4, filed in the 90 days to Oct 1, 2026. Counts are filings with at least one open-market purchase (P) or sale (S); grants, option exercises, tax withholding and gifts are left out.

Insider share counts and prices are as reported on Form 4.

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What Vero tracks about Aon

Each new Aon filing and headline, summarized in plain English and scored 1–10 for how much it matters. Write down why you own AON, and Vero reads every new item against those reasons: confirms, challenges or breaks. Alerts say when something crosses the line you set.

Track AON freeWrite a thesis on AON

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Aon (AON): questions, answered from the data

When is Aon's next earnings date?
Around Oct 30, 2026 (past results were usually filed before the open), but that is an estimate, not a date Aon has announced. Estimated from past filing dates: Vero projects it from the dates of Aon's past SEC filings (source: Estimated from SEC EDGAR filing dates). Treat it as approximate until the company confirms it.
What was AON's last closing price?
AON closed at $272.00 on Sep 28, 2026. This is an end-of-day price from trades on the IEX exchange, published the next trading day, not a live quote, and it can differ slightly from the consolidated official close. That was −2.18% from the session before and −22.6% over 52 weeks.
Have Aon insiders bought or sold shares recently?
In the 90 days to Oct 1, 2026, SEC Form 4 shows 1 filing with open-market purchases (20,000 shares) and 3 filings with open-market sales (4,450 shares). The most recent: KNIGHT LESTER B (Director) reported buying 20,000 shares, filed Sep 3, 2026. Grants, option exercises and tax withholding are not counted. Insider share counts and prices are as reported on Form 4.
What did Aon file with the SEC most recently?
An 8-K filed on Sep 22, 2026: Current report: Material agreement; Termination of a material agreement; New direct financial obligation. Before that, an 8-K on Sep 17, 2026 and an 8-K on Sep 11, 2026. Each filing is linked to the original on SEC EDGAR.
Is this page a recommendation to buy or sell AON?
No. It reports public data (end-of-day prices from IEX and filings from SEC EDGAR) with the date of each. Vero is a research tool, not a financial adviser, and nothing here is a recommendation to buy or sell any security.

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Prices: IEX HIST end-of-day bars, published the next trading day; never live. Data provided for free by IEX. By accessing or using IEX Historical Data, you agree to the IEX Historical Data Terms of Use.

Filings, Form 4 and financials: Source: SEC EDGAR. Earnings dates: Vero’s calendar, marked confirmed or estimated.

Vero is a research tool, not a financial adviser. Nothing on this site is financial advice or a recommendation to buy or sell any security.

Data as of Oct 1, 2026.