AON Congressional Stock Trades & Insider Buying (2026)

AON insider buying and selling over the past year

Over the past year Aon plc insiders filed 4 open-market Form 4 trades — 1 purchases worth $1.28M and 3 sales worth $6.09M — which makes them net sellers by $4.81M.

Only 1 of the 3 sales were flagged as Rule 10b5-1 plan trades, so most selling was discretionary rather than pre-scheduled. Activity clustered in 2026-02 (3 trades) and 2025-11 (1 trades); the latest filing in this window is dated 2026-02-26. The average open-market sale price was $335.81; the last close of $292.55 is 12.9% below that level, so sellers exited above the current price. The single largest trade was a sale of 8,800 shares worth $3.03M on 2025-11-05. Since the most recent filing the stock has moved -11.4%, from $330.27. Insiders paid an average of $319.24 per share for their open-market purchases; against the last close of $292.55 that cost basis is under water at -8.4%.

Where AON trades relative to its one-year range

Aon plc closed at $292.55 on 2026-10-16, inside a one-year range of $269.45 to $381.26. That puts the stock in the middle of its range, at 20.7% of the distance from low to high. Over one year the share price moved -14.7%, and over roughly three months -20.3%. Average daily volume over the last month was about 2,000,590 shares.

Across 8 companies in the same SEC industry group (SIC 64) with a full year of prices in Gemral Edge, the median one-year return was -3.8%. AON is behind that median and beat 25% of that peer group on this measure.

Members of Congress who traded AON

STOCK Act disclosures show 21 trades in AON by 7 members of Congress over five years (6 purchases, 15 sales), most recently on 2026-03-27. The most active traders were Michael T. McCaul (R-TX), 12 trades; Tommy Tuberville (R-AL), 3 trades; Jefferson Shreve (R-IN), 2 trades; Alan Armstrong (R-OK), 1 trade; Daniel S. Goldman (D-NY), 1 trade.

By party the trades split 19 by Republicans, 2 by Democrats; by chamber, 17 from the House, 4 from the Senate.

AON lobbying disclosures

Aon plc appears in 2 Lobbying Disclosure Act filings between 2018 and 2018, with $260.0K in reported lobbying spend.

Compare AON with indexed peers from the same industry group

These peers have full Gemral Edge dossiers and the closest one-year price move to AON:

• AJG one-year return -9.0%
• BRO one-year return -20.6%

Sources and method

Every figure above is computed from public filings stored in Gemral Edge, not estimated. Insider figures count only open-market purchases and sales reported on SEC Form 4; option exercises, grants and gifts are excluded because they do not reflect a decision to buy or sell at market prices.

• SEC EDGAR Form 4 (edge_insider_trades, codes P/S open-market only) — as of 2026-02-26
• edge_prices_eod (end-of-day close) — as of 2026-10-16
• House PTR / Senate eFD disclosures (edge_congress_trades) — as of 2026-03-27
• Senate LDA filings (edge_lobbying_filings)

AON data questions

Are AON insiders buying or selling stock?

Over the past year Aon plc insiders filed 4 open-market Form 4 trades — 1 purchases worth $1.28M and 3 sales worth $6.09M — which makes them net sellers by $4.81M.

What is the one-year price range for AON?

Based on end-of-day closes through 2026-10-16, AON traded between $269.45 and $381.26, last closing at $292.55.

Has any member of Congress traded AON stock?

Yes. 7 members disclosed 21 trades in AON over five years; the most recent disclosed trade date is 2026-03-27.