AON
Aon plcFinancial Services · $58.5B market cap
Verdict
Share price
$269.45
close of Oct 3, 2026
Fair value
$296.30
Sticker Price
Payback Price
$118.52
buy price
AON is Fairly Valued: at $269.45 it's within 9% of its fair value of $296.30. Its buy price (Payback Price) is $118.52, 56% below today's price. Business quality is limited: only 1 of 5 key numbers clears the 10% bar.
How we valued it
Free Cash Flow. Sales grew 11% a year over the last 3 years, below the 15% we look for in a fast grower, so we value it on its free cash flow instead of an earnings forecast.
Business quality
1 of 5 clear the 10% bar. What are the Big Five?
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10 of the investors we track hold AON. In Q2 2026, 2 trimmed and 1 sold out. Who we track
Dodge & Cox Funds
Dodge & Cox Funds · as of Q2 2026
$2.9B
8,593,144 shares
Viking Global Investors
Viking Global Investors · as of Q2 2026
$381.9M
1,151,269 shares
Seth Klarman
Baupost Group LLC · as of Q2 2026
$227.9M
687,000 shares
First Pacific Advisors
First Pacific Advisors · as of Q2 2026
$226.0M
681,367 shares
Wallace Weitz
Weitz Investment Management · as of Q2 2026
$70.9M
213,860 shares
Show all 10 holdersShow fewer
Polen Capital Management
Polen Capital Management · as of Q2 2026
$54.4M
164,035 shares
Thomas Gayner
Markel Group · as of Q2 2026
$45.0M
135,800 shares
Jensen Investment Management
Jensen Investment Management · as of Q2 2026
$8.6M
25,789 shares
Yacktman Asset Management
Yacktman Asset Management · as of Q2 2026
$4.3M
12,915 shares
David Katz
Matrix Asset Advisors · as of Q2 2026
$215K
648 shares
Insider activity
Since Jun 25, 2026: 6 open-market purchases worth $6.5M, 7 sales worth $1.7M and 25 other filings (stock awards, tax withholding and similar). Why purchases matter
Purchases
KNIGHT LESTER B
director · 2026-09-02
Bought
$121K
KNIGHT LESTER B
director · 2026-09-02
Bought
$475K
KNIGHT LESTER B
director · 2026-09-02
Bought
$1.4M
KNIGHT LESTER B
director · 2026-09-02
Bought
$2.4M
KNIGHT LESTER B
director · 2026-09-02
Bought
$1.7M
KNIGHT LESTER B
director · 2026-09-02
Bought
$566K
Sales
Zeidel Darren
General Counsel · 2026-07-28
Sold
$181K
Zeidel Darren
General Counsel · 2026-07-28
Sold
$274K
Zeidel Darren
General Counsel · 2026-07-28
Sold
$263K
Zeidel Darren
General Counsel · 2026-07-17
Sold
$252K
Zeidel Darren
General Counsel · 2026-07-17
Sold
$242K
Show all 7 salesShow fewer
Zeidel Darren
General Counsel · 2026-07-17
Sold
$231K
Zeidel Darren
General Counsel · 2026-07-07
Sold
$216K
Other filings
Reese Edmund
Chief Financial Officer · 2026-07-01
Tax withholding
$755K
Reese Edmund
Chief Financial Officer · 2026-07-01
Option exercise
3,975 shares
SMITH SARAH G
director · 2026-06-25
Tax withholding
$59K
SMITH SARAH G
director · 2026-06-25
Award
$8
Cai Jin-Yong
director · 2026-06-25
Tax withholding
$125K
Show all 25 other filingsShow fewer
Cai Jin-Yong
director · 2026-06-25
Award
$8
Spruell Byron
director · 2026-06-25
Tax withholding
$59K
Spruell Byron
director · 2026-06-25
Award
$8
CAMPBELL JEFFREY C
director · 2026-06-25
Tax withholding
$59K
CAMPBELL JEFFREY C
director · 2026-06-25
Award
$8
SANTONA GLORIA
director · 2026-06-25
Tax withholding
$59K
SANTONA GLORIA
director · 2026-06-25
Award
$8
NOTEBAERT RICHARD C
director · 2026-06-25
Tax withholding
$59K
NOTEBAERT RICHARD C
director · 2026-06-25
Award
$8
STAVRIDIS JAMES G.
director · 2026-06-25
Tax withholding
$59K
STAVRIDIS JAMES G.
director · 2026-06-25
Award
$8
FRANCIS CHERYL A
director · 2026-06-25
Tax withholding
$59K
FRANCIS CHERYL A
director · 2026-06-25
Award
$8
Alvarez Jose Antonio
director · 2026-06-25
Tax withholding
$118K
Alvarez Jose Antonio
director · 2026-06-25
Award
$8
KNIGHT LESTER B
director · 2026-06-25
Award
$15
Karaboutis Adriana
director · 2026-06-25
Tax withholding
$59K
Karaboutis Adriana
director · 2026-06-25
Award
$8
Jenkins Jo Ann
director · 2026-06-25
Tax withholding
$59K
Jenkins Jo Ann
director · 2026-06-25
Award
$8
About Aon plc
Aon plc operates as a professional services firm in the United States, rest of the Americas, the United Kingdom, Ireland, rest of Europe, the Middle East, Africa, and the Asia Pacific. It operates through Risk Capital and Human Capital segments. The company offers commercial risk solutions comprising retail and insurance brokerage, specialty solutions, global risk consulting, captives management, and affinity…
Insurance - Brokers
Fair value and Payback Price are estimates from the company's reported financials, not investment advice. Prices as of the close of Oct 3, 2026. How the Payback Price works