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AON

Aon plc Class A

XNYS · INSURANCE AGENTS, BROKERS & SERVICE

5 articles20 insider tx0 holders0 supply chain4 selling intent filings1 new insider

Research articles

Includes notes from domestic 8-K and foreign private issuer 6-K disclosures.

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Recent insider activity

Insider net $ (monthly)open-market Form 4 only - grants, exercises, tax withholding excluded$10.0M$5.0M$0-$5.0M-$10.0M2024-10 $02024-11 -$751K2024-12 $02025-01 $02025-02 $02025-03 $02025-04 $02025-05 $02025-06 $02025-07 $02025-08 $02025-09 $02025-10 $02025-11 -$3.0M2025-12 $02026-01 $02026-02 -$1.8M2026-03 $02026-04 $02026-05 $02026-06 $02026-07 -$1.7M2026-08 $02026-09 $6.5MOct 24Dec 24Feb 25Apr 25Jun 25Aug 25Oct 25Dec 25Feb 26Apr 26Jun 26Aug 26~ derived from SEC-reported shares x price. Hatched: excluded (implausible price) or unpriced.

open-market Form 4 only - grants, exercises, tax withholding excluded

1 buyers - 1 unique sellers · Institutional activity: not available - insufficient comparable institutions for the latest complete quarter.

Date Insider Title Type Shares Price Value
September 2, 2026 Knight Lester B — BUY 1,739 $326 ~$0.6M
September 2, 2026 Knight Lester B — BUY 5,097 $327 ~$1.7M
September 2, 2026 Knight Lester B — BUY 7,212 $328 ~$2.4M
September 2, 2026 Knight Lester B — BUY 4,145 $328 ~$1.4M
September 2, 2026 Knight Lester B — BUY 1,440 $330 ~$0.5M
September 2, 2026 Knight Lester B — BUY 367 $331 ~$0.1M
July 28, 2026 Zeidel Darren General Counsel SELL -700 $376 ~$0.3M
July 28, 2026 Zeidel Darren General Counsel SELL -725 $378 ~$0.3M
July 28, 2026 Zeidel Darren General Counsel SELL -475 $380 ~$0.2M
July 17, 2026 Zeidel Darren General Counsel SELL -625 $370 ~$0.2M
July 17, 2026 Zeidel Darren General Counsel SELL -650 $372 ~$0.2M
July 17, 2026 Zeidel Darren General Counsel SELL -675 $374 ~$0.3M
July 7, 2026 Zeidel Darren General Counsel SELL -600 $360 ~$0.2M
July 1, 2026 Reese Edmund Chief Financial Officer OPTION_EXERCISE 3,975 — —
July 1, 2026 Reese Edmund Chief Financial Officer TAX_WITHHOLD -2,198.11 $344 ~$0.8M
July 1, 2026 Reese Edmund Chief Financial Officer OPTION_EXERCISE -3,975 — —
June 25, 2026 Knight Lester B — GRANT 1,488 — —
June 25, 2026 Alvarez Jose Antonio — GRANT 776 — —
June 25, 2026 Alvarez Jose Antonio — TAX_WITHHOLD -372.47 $316 ~$0.1M
June 25, 2026 Francis Cheryl A — GRANT 776 — —

Insider Selling Intent (Form 144)

Date Filer Relationship Est. shares Filing
July 28, 2026 Zeidel Darren — 1,900 SEC
July 17, 2026 Zeidel Darren — 1,950 SEC
July 7, 2026 Zeidel Darren — 600 SEC
June 4, 2026 Goltermann Lori — 5,766 SEC

New Insiders (Form 3)

Date Insider Title Relationship Shares Filing
August 26, 2026 — — — — SEC
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