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Aon plc (AON) S&P 500 XNYS INSURANCE AGENTS, BROKERS & SERVICE Net insider selling (90d) Watch AON
Latest AON Insider Trades Aon is a leading global provider of insurance and reinsurance brokerage and human resources solutions. Its operations are tilted toward its brokerage operations. Headquartered in London, Aon has about 60,000 employees and operations in over 120 countries.
Headquarters DUBLIN 2, L2
Employees 60,000
Listed 1975
Exchange XNYS https://www.aon.com SEC filings for AON on EDGAR
90-Day SEC Filing Activity Form 4 transaction type Transactions Shares Total value Open-market sale 7 4,450 $1.66M Grant or award 12 10,024 Option exercise 2 7,950
AON Insider Transactions (Form 4) 100 53 Form 4 filings on record, the earliest from Nov 19, 2024, newest first. Filing history page 1 of 2.
Date Insider Transaction Security Shares Price Value Jul 28, 2026 DZ Darren Zeidel - Officer Open-market sale Class A Ordinary Stock 700
Recent AON Form 8-K Filings 4
Recent AON Form 144 Notices of Proposed Sale 3 A Form 144 is notice of an INTENDED sale, not a completed one. It often precedes the Form 4 that reports the trade actually happening.
Filed Filer Relationship Shares Market value Notice Jul 28, 2026 - - - - View on EDGAR Jul 17, 2026 - - -
AON Insider Trading - FAQ
What is the latest insider trade for AON? Aon plc (AON) had 16 insider filings in the last 90 days, with the most recent on 2026-07-30. The full record for AON runs to 53 Form 4 filings, the earliest from 2024-11-19. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
How many insiders are buying AON stock? No insider purchases of AON were filed in the last 90 days. 1 purchase is on record for this company.
How many insiders are selling AON stock? 7 insider sales of AON were filed in the last 90 days, totaling $1.66M.
Where can I see AON SEC filings (Form 4, 10-K, 10-Q, 8-K)? This page tracks AON Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
How can I follow AON insider buys? Create a free InsiderAlpha account and press Watch on this page to add AON to your watchlist. A free account also opens the full scored daily plan with every past day and 3 months of price history. No card is required. Sign up at https://insideralpha.ai/register.
More Financials Companies with Insider Activity Every Form 4 below links to the original document on SEC EDGAR, so the numbers on this page can be checked against the filing they came from.
Related Companies - Recent Insider Activity What is SEC Form 4? The filing insiders must submit within two business days of a trade, and how to read its transaction codes. Track AON insider activity as it files Real-time Form 4 alerts, AI-scored daily trade ideas and 10b5-1 plan flags.
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Market cap $75.39B
P/E ratio 19.60
Dividend yield -
Average volume 1.39M
52 week high $382.34
52 week low $304.59
Today's high $358.71
Today's low $349.76
Open $350.96
Volume 669.1K
Previous close $349.56
Shares outstanding 212.13M Market cap
$75.39B
60,000 employees
AON Insider Sentiment - Last 90 Days Share of open-market insider dollar volume that was buying versus selling, from SEC Form 4 filings.
0% Buying 100% Selling
0 insider purchases totaling $0 against 7 sales totaling $1.66M.
Most-Active AON Insiders - Last 90 Days 10 Tax withholding / forfeiture 12 4,643
Dollar totals are shown for open-market purchases and sales only. Grants, option exercises, gifts and tax withholding are reported by share count because they are not trades at a market price.
Jul 28, 2026 DZ Darren Zeidel - Officer Open-market sale Class A Ordinary Stock 725 $378.00 $274K
Jul 28, 2026 DZ Darren Zeidel - Officer Open-market sale Class A Ordinary Stock 475 $380.00 $181K
Jul 17, 2026 DZ Darren Zeidel - Officer Open-market sale Class A Ordinary Stock 625 $370.00 $231K
Jul 17, 2026 DZ Darren Zeidel - Officer Open-market sale Class A Ordinary Stock 650 $372.00 $242K
Jul 17, 2026 DZ Darren Zeidel - Officer Open-market sale Class A Ordinary Stock 675 $374.00 $252K
Jul 7, 2026 DZ Darren Zeidel - Officer Open-market sale Class A Ordinary Stock 600 $360.00 $216K
Jul 1, 2026 ER Edmund Reese - Officer Option exercise Class A Ordinary Stock 3,975 - -
Jul 1, 2026 ER Edmund Reese - Officer Tax withholding / forfeiture Class A Ordinary Stock 2,198 $343.56 $755K
Jul 1, 2026 ER Edmund Reese - Officer Option exercise Restricted Share Unit (Right to Receive) 3,975 $0.00 -
Jun 25, 2026 JA Jose Antonio Alvarez Tax withholding / forfeiture Class A Ordinary Stock 372.47 $315.95 $118K
Jun 25, 2026 CF Cheryl A. Francis Tax withholding / forfeiture Class A Ordinary Stock 186.24 $315.95 $59K
Jun 25, 2026 JS James G. Stavridis Tax withholding / forfeiture Class A Ordinary Shares 186.24 $315.95 $59K
Jun 25, 2026 RN Richard C. Notebaert Tax withholding / forfeiture Class A Ordinary Stock 186.24 $315.95 $59K
Jun 25, 2026 GS Gloria Santona Tax withholding / forfeiture Class A Ordinary Stock 186.24 $315.95 $59K
Jun 25, 2026 JC Jeffrey C. Campbell Tax withholding / forfeiture Class A Ordinary Stock 186.24 $315.95 $59K
Jun 25, 2026 BS Byron Spruell Grant or award Class A Ordinary Stock 776 - -
Jun 25, 2026 BS Byron Spruell Tax withholding / forfeiture Class A Ordinary Stock 186.24 $315.95 $59K
Jun 25, 2026 JC Jin-Yong Cai Grant or award Class A Ordinary Stock 776 - -
Jun 25, 2026 JC Jin-Yong Cai Tax withholding / forfeiture Class A Ordinary Stock 396.52 $315.95 $125K
Jun 25, 2026 SS Sarah G. Smith Tax withholding / forfeiture Class A Ordinary Stock 186.24 $315.95 $59K
Jun 25, 2026 JJ Jo Ann Jenkins Tax withholding / forfeiture Class A Ordinary Stock 186.24 $315.95 $59K
Jun 25, 2026 AK Adriana Karaboutis Tax withholding / forfeiture Class A Ordinary Stock 186.24 $315.95 $59K
Mar 13, 2026 AC Anne Corona - Officer Option exercise Class A Ordinary Stock 193 - -
Mar 13, 2026 AC Anne Corona - Officer Tax withholding / forfeiture Class A Ordinary Stock 85.5 $321.41 $27K
Mar 13, 2026 AC Anne Corona - Officer Option exercise Class A Ordinary Stock 174 - -
Mar 13, 2026 AC Anne Corona - Officer Tax withholding / forfeiture Class A Ordinary Stock 77.08 $321.41 $25K
Mar 13, 2026 AC Anne Corona - Officer Option exercise Restricted Share Unit (Right to Receive) 193 $0.00 -
Mar 13, 2026 AC Anne Corona - Officer Option exercise Restricted Share Unit (Right to Receive) 174 $0.00 -
Mar 13, 2026 LG Lori Goltermann - Officer Option exercise Class A Ordinary Stock 228 - -
Mar 13, 2026 LG Lori Goltermann - Officer Tax withholding / forfeiture Class A Ordinary Stock 99.18 $321.41 $32K
Mar 13, 2026 LG Lori Goltermann - Officer Option exercise Class A Ordinary Stock 290 - -
Mar 13, 2026 LG Lori Goltermann - Officer Tax withholding / forfeiture Class A Ordinary Stock 126.15 $321.41 $41K
Mar 13, 2026 LG Lori Goltermann - Officer Option exercise Restricted Share Unit (Right to Receive) 228 $0.00 -
Mar 13, 2026 LG Lori Goltermann - Officer Option exercise Restricted Share Unit (Right to Receive) 290 $0.00 -
Mar 13, 2026 AM Andy Marcell - Officer Option exercise Class A Ordinary Stock 1,166 - -
Mar 13, 2026 AM Andy Marcell - Officer Tax withholding / forfeiture Class A Ordinary Stock 567.83 $321.41 $183K
Mar 13, 2026 AM Andy Marcell - Officer Option exercise Class A Ordinary Stock 464 - -
Mar 13, 2026 AM Andy Marcell - Officer Tax withholding / forfeiture Class A Ordinary Stock 225.96 $321.41 $73K
Mar 13, 2026 AM Andy Marcell - Officer Option exercise Restricted Share Unit (Right to Receive) 1,166 $0.00 -
Mar 13, 2026 AM Andy Marcell - Officer Option exercise Restricted Share Unit (Right to Receive) 464 $0.00 -
Feb 26, 2026 DZ Darren Zeidel - Officer Open-market sale Class A Ordinary Stock 4,300 $329.72 $1.42M
Feb 19, 2026 GC Gregory C. Case - Officer Gift Class A Ordinary Stock 11,206 $0.00 -
Feb 19, 2026 GC Gregory C. Case - Officer Gift Class A Ordinary Stock 11,206 $0.00 -
Feb 19, 2026 GC Gregory C. Case - Officer Gift Class A Ordinary Stock 7,500 $0.00 -
Feb 19, 2026 GC Gregory C. Case - Officer Gift Class A Ordinary Stock 7,500 $0.00 -
Feb 19, 2026 GC Gregory C. Case - Officer Gift Class A Ordinary Stock 11,206 $0.00 -
Feb 19, 2026 GC Gregory C. Case - Officer Gift Class A Ordinary Stock 11,206 $0.00 -
Feb 18, 2026 LS Lisa Stevens - Officer Gift Class A Ordinary Stock 32 $0.00 -
Feb 17, 2026 GC Gregory C. Case - Officer Gift Class A Ordinary Stock 3,214 $0.00 -
Feb 17, 2026 GC Gregory C. Case - Officer Gift Class A Ordinary Stock 3,214 $0.00 -
Feb 17, 2026 GC Gregory C. Case - Officer Gift Class A Ordinary Stock 3,214 $0.00 -
Feb 17, 2026 GC Gregory C. Case - Officer Gift Class A Ordinary Stock 3,214 $0.00 -
Feb 17, 2026 GC Gregory C. Case - Officer Option exercise Class A Ordinary Stock 2,357 - -
Feb 17, 2026 GC Gregory C. Case - Officer Tax withholding / forfeiture Class A Ordinary Stock 1,002 $325.96 $327K
Feb 17, 2026 GC Gregory C. Case - Officer Option exercise Restricted Share Unit (Right to Receive) 2,357 $0.00 -
Feb 17, 2026 DZ Darren Zeidel - Officer Open-market sale Class A Ordinary Stock 5,040 $325.79 $1.64M
Feb 12, 2026 DZ Darren Zeidel - Officer Grant or award Class A Ordinary Stock 7,135 - -
Feb 12, 2026 DZ Darren Zeidel - Officer Tax withholding / forfeiture Class A Ordinary Stock 2,696 $314.49 $848K
Feb 13, 2026 DZ Darren Zeidel - Officer Option exercise Class A Ordinary Stock 871 - -
Feb 13, 2026 DZ Darren Zeidel - Officer Tax withholding / forfeiture Class A Ordinary Stock 385.84 $321.70 $124K
Feb 13, 2026 DZ Darren Zeidel - Officer Option exercise Class A Ordinary Stock 209 - -
Feb 13, 2026 DZ Darren Zeidel - Officer Tax withholding / forfeiture Class A Ordinary Stock 92.59 $321.70 $30K
Feb 12, 2026 DZ Darren Zeidel - Officer Grant or award Restricted Share Unit (Right to Receive) 1,113 $0.00 -
Feb 13, 2026 DZ Darren Zeidel - Officer Option exercise Restricted Share Unit (Right to Receive) 871 $0.00 -
Feb 13, 2026 DZ Darren Zeidel - Officer Option exercise Restricted Share Unit (Right to Receive) 209 $0.00 -
Feb 12, 2026 LS Lisa Stevens - Officer Grant or award Class A Ordinary Stock 15,856 - -
Feb 12, 2026 LS Lisa Stevens - Officer Tax withholding / forfeiture Class A Ordinary Stock 7,568 $314.49 $2.38M
Feb 13, 2026 LS Lisa Stevens - Officer Option exercise Class A Ordinary Stock 1,451 - -
Feb 13, 2026 LS Lisa Stevens - Officer Tax withholding / forfeiture Class A Ordinary Stock 701.25 $321.70 $226K
Feb 13, 2026 LS Lisa Stevens - Officer Option exercise Class A Ordinary Stock 478 - -
Feb 13, 2026 LS Lisa Stevens - Officer Tax withholding / forfeiture Class A Ordinary Stock 231.01 $321.70 $74K
Feb 12, 2026 LS Lisa Stevens - Officer Grant or award Restricted Share Unit (Right to Receive) 2,059 $0.00 -
Feb 13, 2026 LS Lisa Stevens - Officer Option exercise Restricted Share Unit (Right to Receive) 1,451 $0.00 -
Feb 13, 2026 LS Lisa Stevens - Officer Option exercise Restricted Share Unit (Right to Receive) 478 $0.00 -
Feb 12, 2026 MS Mindy F. Simon - Officer Grant or award Class A Ordinary Stock 5,550 - -
Feb 12, 2026 MS Mindy F. Simon - Officer Tax withholding / forfeiture Class A Ordinary Stock 2,378 $314.49 $748K
Feb 13, 2026 MS Mindy F. Simon - Officer Option exercise Class A Ordinary Stock 254 - -
Feb 13, 2026 MS Mindy F. Simon - Officer Tax withholding / forfeiture Class A Ordinary Stock 108.84 $321.70 $35K
Feb 12, 2026 MS Mindy F. Simon - Officer Grant or award Restricted Share Unit (Right to Receive) 1,113 $0.00 -
Feb 13, 2026 MS Mindy F. Simon - Officer Option exercise Restricted Share Unit (Right to Receive) 254 $0.00 -
Feb 13, 2026 ER Edmund Reese - Officer Option exercise Class A Ordinary Stock 598 - -
Feb 13, 2026 ER Edmund Reese - Officer Tax withholding / forfeiture Class A Ordinary Stock 250.81 $321.70 $81K
Feb 12, 2026 ER Edmund Reese - Officer Grant or award Restricted Share Unit (Right to Receive) 2,337 $0.00 -
Feb 13, 2026 ER Edmund Reese - Officer Option exercise Restricted Share Unit (Right to Receive) 598 $0.00 -
Feb 12, 2026 AM Andy Marcell - Officer Grant or award Class A Ordinary Stock 12,882 - -
Feb 12, 2026 AM Andy Marcell - Officer Tax withholding / forfeiture Class A Ordinary Stock 6,576 $314.49 $2.07M
Feb 12, 2026 AM Andy Marcell - Officer Grant or award Restricted Share Unit (Right to Receive) 2,226 $0.00 -
Feb 12, 2026 AM Andy Marcell - Officer Grant or award Restricted Share Unit (Right to Receive) 9,539 $0.00 -
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