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A

AON

NYSE

Aon plc

Latest disclosureSeptember 3, 2026
Insider score Why 30?
30/ 100
Qualifying buys · 30d
$0

6 purchases · 7 sales

Price by TradingViewDelayed quote from TradingView, for viewing only. It does not power Whale Atlas scores or alerts. If the quote does not load, open the TradingView link.

Insider transactions 40

Limited filing history
All40Buying6Selling7Other27
Filters

Last 30 daysNo qualifying insider buying. No qualifying insider sales.

40 trades · May 12, 2026 – September 2, 2026Incomplete history: this shows the filings imported so far, not every filing ever made. Dates are trade dates. Filters affect this table only.

Showing the first 6 of 40 trades on this page.

Purchase disclosed

Lester B. Knight

Director

Class A Ordinary Stock

Reported value
$566.27K
Reported price
$325.63 / share
Traded September 2, 2026Filed September 3, 2026SEC filing
Purchase disclosed

Lester B. Knight

Director

Class A Ordinary Stock

Reported value
$1.66M
Reported price
$326.53 / share
Traded September 2, 2026Filed September 3, 2026SEC filing
Purchase disclosed

Lester B. Knight

Director

Class A Ordinary Stock

Reported value
$2.36M
Reported price
$327.52 / share
Traded September 2, 2026Filed September 3, 2026SEC filing
Purchase disclosed

Lester B. Knight

Director

Class A Ordinary Stock

Reported value
$1.36M
Reported price
$328.34 / share
Traded September 2, 2026Filed September 3, 2026SEC filing
Purchase disclosed

Lester B. Knight

Director

Class A Ordinary Stock

Reported value
$474.75K
Reported price
$329.69 / share
Traded September 2, 2026Filed September 3, 2026SEC filing
Purchase disclosed

Lester B. Knight

Director

Class A Ordinary Stock

Reported value
$121.3K
Reported price
$330.51 / share
Traded September 2, 2026Filed September 3, 2026SEC filing
Sale disclosed

Darren Zeidel

General Counsel

Class A Ordinary Stock

Reported value
$263.2K
Reported price
$376.00 / share
Traded July 28, 2026Filed July 30, 2026SEC filing
Sale disclosed

Darren Zeidel

General Counsel

Class A Ordinary Stock

Reported value
$274.05K
Reported price
$378.00 / share
Traded July 28, 2026Filed July 30, 2026SEC filing
Sale disclosed

Darren Zeidel

General Counsel

Class A Ordinary Stock

Reported value
$180.5K
Reported price
$380.00 / share
Traded July 28, 2026Filed July 30, 2026SEC filing
Sale disclosed

Darren Zeidel

General Counsel

Class A Ordinary Stock

Reported value
$231.25K
Reported price
$370.00 / share
Traded July 17, 2026Filed July 21, 2026SEC filing
Sale disclosed

Darren Zeidel

General Counsel

Class A Ordinary Stock

Reported value
$241.8K
Reported price
$372.00 / share
Traded July 17, 2026Filed July 21, 2026SEC filing
Sale disclosed

Darren Zeidel

General Counsel

Class A Ordinary Stock

Reported value
$252.45K
Reported price
$374.00 / share
Traded July 17, 2026Filed July 21, 2026SEC filing
Sale disclosed

Darren Zeidel

General Counsel

Class A Ordinary Stock

Reported value
$216K
Reported price
$360.00 / share
Traded July 7, 2026Filed July 9, 2026SEC filing
Exercise or conversion

Edmund Reese

Chief Financial Officer

Class A Ordinary Stock

Value context
Unavailable
Reported price
Price not reported
Traded July 1, 2026Filed July 6, 2026SEC filing
Tax or exercise withholding

Edmund Reese

Chief Financial Officer

Class A Ordinary Stock

Value context
$755.18K
Reported price
$343.56 / share
Traded July 1, 2026Filed July 6, 2026SEC filing
Exercise or conversion

Edmund Reese

Chief Financial Officer

Restricted Share Unit (Right to Receive)

Derivative security · not the ordinary share price.

Value context
Not a separate purchase
Exercise / conversion price
Exercise / conversion price not reported
Understand this price

This row records an option exercise or conversion. The derivative transaction price is separate from the exercise price; it is not the stock's market price. Its row value is not shown as another stock purchase.

Traded July 1, 2026Filed July 6, 2026SEC filing
Award disclosed

Lester B. Knight

Director

Class A Ordinary Stock

Value context
Unavailable
Reported price
Price not reported
Traded June 25, 2026Filed June 29, 2026SEC filing
Award disclosed

Jose Antonio Alvarez

Director

Class A Ordinary Stock

Value context
Unavailable
Reported price
Price not reported
Traded June 25, 2026Filed June 29, 2026SEC filing
Tax or exercise withholding

Jose Antonio Alvarez

Director

Class A Ordinary Stock

Value context
$117.68K
Reported price
$315.95 / share
Traded June 25, 2026Filed June 29, 2026SEC filing
Award disclosed

Cheryl A. Francis

Director

Class A Ordinary Stock

Value context
Unavailable
Reported price
Price not reported
Traded June 25, 2026Filed June 29, 2026SEC filing
Tax or exercise withholding

Cheryl A. Francis

Director

Class A Ordinary Stock

Value context
$58.84K
Reported price
$315.95 / share
Traded June 25, 2026Filed June 29, 2026SEC filing
Award disclosed

James G. Stavridis

Director

Class A Ordinary Shares

Value context
Unavailable
Reported price
Price not reported
Traded June 25, 2026Filed June 29, 2026SEC filing
Tax or exercise withholding

James G. Stavridis

Director

Class A Ordinary Shares

Value context
$58.84K
Reported price
$315.95 / share
Traded June 25, 2026Filed June 29, 2026SEC filing
Award disclosed

Richard C. Notebaert

Director

Class A Ordinary Stock

Value context
Unavailable
Reported price
Price not reported
Traded June 25, 2026Filed June 29, 2026SEC filing
Tax or exercise withholding

Richard C. Notebaert

Director

Class A Ordinary Stock

Value context
$58.84K
Reported price
$315.95 / share
Traded June 25, 2026Filed June 29, 2026SEC filing
Award disclosed

Gloria Santona

Director

Class A Ordinary Stock

Value context
Unavailable
Reported price
Price not reported
Traded June 25, 2026Filed June 29, 2026SEC filing
Tax or exercise withholding

Gloria Santona

Director

Class A Ordinary Stock

Value context
$58.84K
Reported price
$315.95 / share
Traded June 25, 2026Filed June 29, 2026SEC filing
Award disclosed

Jeffrey C. Campbell

Director

Class A Ordinary Stock

Value context
Unavailable
Reported price
Price not reported
Traded June 25, 2026Filed June 29, 2026SEC filing
Tax or exercise withholding

Jeffrey C. Campbell

Director

Class A Ordinary Stock

Value context
$58.84K
Reported price
$315.95 / share
Traded June 25, 2026Filed June 29, 2026SEC filing
Award disclosed

Byron Spruell

Director

Class A Ordinary Stock

Value context
Unavailable
Reported price
Price not reported
Traded June 25, 2026Filed June 29, 2026SEC filing
Tax or exercise withholding

Byron Spruell

Director

Class A Ordinary Stock

Value context
$58.84K
Reported price
$315.95 / share
Traded June 25, 2026Filed June 29, 2026SEC filing
Award disclosed

Jin-Yong Cai

Director

Class A Ordinary Stock

Value context
Unavailable
Reported price
Price not reported
Traded June 25, 2026Filed June 29, 2026SEC filing
Tax or exercise withholding

Jin-Yong Cai

Director

Class A Ordinary Stock

Value context
$125.28K
Reported price
$315.95 / share
Traded June 25, 2026Filed June 29, 2026SEC filing
Award disclosed

Sarah G. Smith

Director

Class A Ordinary Stock

Value context
Unavailable
Reported price
Price not reported
Traded June 25, 2026Filed June 29, 2026SEC filing
Tax or exercise withholding

Sarah G. Smith

Director

Class A Ordinary Stock

Value context
$58.84K
Reported price
$315.95 / share
Traded June 25, 2026Filed June 29, 2026SEC filing
Award disclosed

Jo Ann Jenkins

Director

Class A Ordinary Stock

Value context
Unavailable
Reported price
Price not reported
Traded June 25, 2026Filed June 29, 2026SEC filing
Tax or exercise withholding

Jo Ann Jenkins

Director

Class A Ordinary Stock

Value context
$58.84K
Reported price
$315.95 / share
Traded June 25, 2026Filed June 29, 2026SEC filing
Award disclosed

Adriana Karaboutis

Director

Class A Ordinary Stock

Value context
Unavailable
Reported price
Price not reported
Traded June 25, 2026Filed June 29, 2026SEC filing
Tax or exercise withholding

Adriana Karaboutis

Director

Class A Ordinary Stock

Value context
$58.84K
Reported price
$315.95 / share
Traded June 25, 2026Filed June 29, 2026SEC filing
Gift disclosed

Richard C. Notebaert

Director

Class A Ordinary Stock

Value context
Not a purchase
Reported price
Gift · no purchase price
Understand this price

The filing reports a zero transaction price for this gift. It does not establish the market value of the gift.

Traded May 12, 2026Filed May 14, 2026SEC filing
Reporting insiderSecurity / transactionAmount / priceValueTraded / disclosedSource
DirectorClass A Ordinary StockPurchase6 trades20,000avg $327.48 / share$6.55MSep 2Filed Sep 3 · 1d later
6 filings
  • 1,739 @ $325.63 · $566.27KSEC filing
  • 5,097 @ $326.53 · $1.66MSEC filing
  • 7,212 @ $327.52 · $2.36MSEC filing
  • 4,145 @ $328.34 · $1.36MSEC filing
  • 1,440 @ $329.69 · $474.75KSEC filing
  • 367 @ $330.51 · $121.3KSEC filing
General CounselClass A Ordinary StockSale10b5-13 trades1,900avg $377.76 / share$717.75KJul 28Filed Jul 30 · 2d later
3 filings
  • 700 @ $376.00 · $263.2KSEC filing
  • 725 @ $378.00 · $274.05KSEC filing
  • 475 @ $380.00 · $180.5KSEC filing
General CounselClass A Ordinary StockSale10b5-13 trades1,950avg $372.05 / share$725.5KJul 17Filed Jul 21 · 4d later
3 filings
  • 625 @ $370.00 · $231.25KSEC filing
  • 650 @ $372.00 · $241.8KSEC filing
  • 675 @ $374.00 · $252.45KSEC filing
General CounselClass A Ordinary StockSale10b5-1600$360.00 / share$216KJul 7Filed Jul 9 · 2d laterSEC filing
Chief Financial OfficerClass A Ordinary StockOption exercise or conversion3,975Price not reportedUnavailableJul 1Filed Jul 6 · 5d laterSEC filing
Chief Financial OfficerClass A Ordinary StockExercise-price or tax withholding2,198$343.56 / share$755.18KJul 1Filed Jul 6 · 5d laterSEC filing
Chief Financial OfficerRestricted Share Unit (Right to Receive)Option exercise or conversionDerivative units3,975Exercise / conversion price not reportedNot a separate purchaseJul 1Filed Jul 6 · 5d laterSEC filing
DirectorClass A Ordinary StockGrant or award1,488Price not reportedUnavailableJun 25Filed Jun 29 · 4d laterSEC filing
DirectorClass A Ordinary StockGrant or award776Price not reportedUnavailableJun 25Filed Jun 29 · 4d laterSEC filing
DirectorClass A Ordinary StockExercise-price or tax withholding372$315.95 / share$117.68KJun 25Filed Jun 29 · 4d laterSEC filing
DirectorClass A Ordinary StockGrant or award776Price not reportedUnavailableJun 25Filed Jun 29 · 4d laterSEC filing
DirectorClass A Ordinary StockExercise-price or tax withholding186$315.95 / share$58.84KJun 25Filed Jun 29 · 4d laterSEC filing
DirectorClass A Ordinary SharesGrant or award776Price not reportedUnavailableJun 25Filed Jun 29 · 4d laterSEC filing
DirectorClass A Ordinary SharesExercise-price or tax withholding186$315.95 / share$58.84KJun 25Filed Jun 29 · 4d laterSEC filing
DirectorClass A Ordinary StockGrant or award776Price not reportedUnavailableJun 25Filed Jun 29 · 4d laterSEC filing
DirectorClass A Ordinary StockExercise-price or tax withholding186$315.95 / share$58.84KJun 25Filed Jun 29 · 4d laterSEC filing
DirectorClass A Ordinary StockGrant or award776Price not reportedUnavailableJun 25Filed Jun 29 · 4d laterSEC filing
DirectorClass A Ordinary StockExercise-price or tax withholding186$315.95 / share$58.84KJun 25Filed Jun 29 · 4d laterSEC filing
DirectorClass A Ordinary StockGrant or award776Price not reportedUnavailableJun 25Filed Jun 29 · 4d laterSEC filing
DirectorClass A Ordinary StockExercise-price or tax withholding186$315.95 / share$58.84KJun 25Filed Jun 29 · 4d laterSEC filing
DirectorClass A Ordinary StockGrant or award776Price not reportedUnavailableJun 25Filed Jun 29 · 4d laterSEC filing
DirectorClass A Ordinary StockExercise-price or tax withholding186$315.95 / share$58.84KJun 25Filed Jun 29 · 4d laterSEC filing
DirectorClass A Ordinary StockGrant or award776Price not reportedUnavailableJun 25Filed Jun 29 · 4d laterSEC filing
DirectorClass A Ordinary StockExercise-price or tax withholding397$315.95 / share$125.28KJun 25Filed Jun 29 · 4d laterSEC filing
DirectorClass A Ordinary StockGrant or award776Price not reportedUnavailableJun 25Filed Jun 29 · 4d laterSEC filing
DirectorClass A Ordinary StockExercise-price or tax withholding186$315.95 / share$58.84KJun 25Filed Jun 29 · 4d laterSEC filing
DirectorClass A Ordinary StockGrant or award776Price not reportedUnavailableJun 25Filed Jun 29 · 4d laterSEC filing
DirectorClass A Ordinary StockExercise-price or tax withholding186$315.95 / share$58.84KJun 25Filed Jun 29 · 4d laterSEC filing
DirectorClass A Ordinary StockGrant or award776Price not reportedUnavailableJun 25Filed Jun 29 · 4d laterSEC filing
DirectorClass A Ordinary StockExercise-price or tax withholding186$315.95 / share$58.84KJun 25Filed Jun 29 · 4d laterSEC filing
DirectorClass A Ordinary StockGift1,438Gift · no purchase priceNot a purchaseMay 12Filed May 14 · 2d laterSEC filing

Congress transactions 1

All Congress filings
Purchase disclosed

Aon plc Class A Ordinary Shares (Ireland) · Stock

The filing reports a purchase for the member.

AAAlan ArmstrongReporting Senate member
Reported amount
$1,001 – $15,000Reported range; exact amount not disclosed.
Trade date
March 27, 2026
Filed July 21, 2026 · 116d laterOriginal report
Explore furtherTechnical lab Company financials Test a strategy Compare company

Why this buying score?

Qualifying common-equity purchase value

$4,912,266 of common-equity purchase value after transaction-age decay across 180 days.

+25 pts

Distinct buying groups

1 distinct reporting-owner group(s). Joint rows count once; identity is not proof of discretion.

+5 pts

This score describes qualifying insider purchases at issuer level. Read the methodology

Sources and coverage

Limited filing history · Market-wide discovery does not establish complete company history. View coverage
Source
SEC EDGAR · Form 4
Issuer CIK
0000315293
Latest public acceptance
Sep 4, 2026, 12:33 AM UTC
Score calculated
Oct 8, 2026, 12:03 AM UTC
Parser
form4-parser-1.5
Classifier
form4-classifier-1.1
Scoring methodology
insider-experimental-1.1
Availability
Public filing time, not trade date

Open a transaction's SEC filing for the primary evidence. A code P may describe an open-market or private purchase; classification is not proof of intent.

Insider activity can have many explanations. Signal Strength is not a probability of profit or a recommendation to trade.