Aon (AON) insider buying

Financial Services · Insurance Brokers · Market cap $59.6B

7 open-market purchases of AON by Aon's executives and directors since February 2026, worth $8M in total, from SEC Form 4 filings.

The most recent: Lester B Knight, Director bought $2M on September 2, 2026.

The biggest buyer over the period is Lester B Knight (Director): 7 purchases, $8M.

By year

YearPurchasesValue
20267$8M

Biggest buyers

InsiderBuysValue
Lester B Knight
Director		7$8M

Every purchase

Newest first. From SEC Form 4 filings. Insider buying across the market.

DateInsiderSharesPriceValueFiling
Sep 2, 2026 Lester B Knight
Director		 7,212$327.52$2M Form 4
Sep 2, 2026 Lester B Knight
Director		 1,739$325.63$566,271 Form 4
Sep 2, 2026 Lester B Knight
Director		 5,097$326.53$2M Form 4
Sep 2, 2026 Lester B Knight
Director		 367$330.51$121,297 Form 4
Sep 2, 2026 Lester B Knight
Director		 4,145$328.34$1M Form 4
Sep 2, 2026 Lester B Knight
Director		 1,440$329.69$474,754 Form 4
Feb 10, 2026 Lester B Knight
 4,000$319.24$1M Form 4
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Questions

Are Aon insiders buying the stock?

7 open-market purchases of AON by Aon's executives and directors since February 2026, worth $8M in total, from SEC Form 4 filings. The most recent: Lester B Knight, Director bought $2M on September 2, 2026.

What counts as insider buying here?

Open-market purchases (Form 4 code P) by officers and directors. Option exercises, grants and purchases by 10% owners are left out.

From Aon's annual reports filed with the SEC (XBRL data), standardised by Investingly. Information only, not investment advice.