Aon plc (AON) — Insider Activity & Signal

Financial Services · Insurance - Brokers · Market cap $62.8B · $296.05 · 52-week range $295.78–$382.34

Recent insider buying

Open-market purchases reported to the SEC (last six months). Option grants and tax-withholding sales are excluded.

Date	Insider	Role	Shares	Price	Value	Source
2026-09-02	KNIGHT LESTER B	director	367	$330.51	$121,297	SEC Form 4
2026-09-02	KNIGHT LESTER B	director	1,440	$329.69	$474,754	SEC Form 4
2026-09-02	KNIGHT LESTER B	director	4,145	$328.34	$1,360,969	SEC Form 4
2026-09-02	KNIGHT LESTER B	director	7,212	$327.52	$2,362,074	SEC Form 4
2026-09-02	KNIGHT LESTER B	director	5,097	$326.53	$1,664,323	SEC Form 4
2026-09-02	KNIGHT LESTER B	director	1,739	$325.63	$566,271	SEC Form 4

Financial health

Altman Z-Score 1.59 · Piotroski F-Score 8/9 · Cash $2.8B · Debt $16.5B

ClearOcean signal read

ClearOcean's model currently scores AON as a watchlist-level signal (6/10), based on the insider, fundamental and risk data above. This is a factual model output, not advice.

Sources & further reading

Primary filings: SEC EDGAR — AON Form 4
How ClearOcean reads insider activity

Last updated September 18, 2026.

ClearOcean is a software research tool, not an investment adviser or broker-dealer. This page aggregates public data (incl. SEC filings) for informational purposes only — it is not investment advice, nor a recommendation, offer or solicitation to buy or sell any security. Past activity does not predict future results. You are solely responsible for your decisions; investing can lose value, up to total loss of capital.