By CapitalSnitch Research Desk · updated Oct 11, 2026 · data from SEC filings and official Congress disclosures
Over 12 months, Aon plc saw more buying than selling from its insiders — purchases of about $7.8 million against sales of $7.8 million.
KNIGHT LESTER B (Director) made the biggest buy, worth around $2.4 million.
Zooming out by quarter: Last full quarter: net buying by insiders. Insiders bought in 2 of the last 7 full quarters. Members of Congress reported 4 trades in AON over the past two years (three members). On the institutional side, 1,255 funds reported holding AON at the end of Q2 2026, and funds were split between buying and selling.
Are insiders buying or selling AON stock?
In the last 12 months Aon plc insiders made open-market purchases worth about $7.8 million and sales worth about $7.8 million. Data comes from SEC Form 4 filings, updated every 30 minutes on CapitalSnitch.
When was the last insider trade in AON?
The most recent open-market insider trade in AON was filed on 2026-09-03.
How many institutions own AON?
1,255 investment managers reported holding AON in SEC Form 13F filings for Q2 2026.
Has any member of Congress traded AON?
Yes. Members of Congress reported 4 trades in AON over the past two years. The full list is free on CapitalSnitch.
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Public-record data for research and education, not investment advice. Insider sales are often pre-planned (10b5-1).
Congress data: Data derived from public disclosures filed under the Ethics in Government Act and the STOCK Act, republished free for public transparency and news reporting. Disclosures may lag the trade by 45 days or more and show amounts only as ranges. This data may not be used for credit rating, loan underwriting, solicitation of money (political, charitable or other), direct-mail or commercial targeting (5 U.S.C. 13107).