AJG Congressional Stock Trades & Insider Buying (2026)

AJG insider buying and selling over the past year

Over the past year Arthur J. Gallagher & Co. insiders filed 9 open-market Form 4 trades — 1 purchases worth $988.5K and 8 sales worth $16.34M — which makes them net sellers by $15.35M.

None of the 8 sales were flagged as Rule 10b5-1 plan trades, meaning each one was a discretionary decision at the time of filing. Activity clustered in 2025-11 (3 trades) and 2025-12 (3 trades); the latest filing in this window is dated 2026-03-06. The average open-market sale price was $242.60; the last close of $254.88 is 5.1% above that level, so sellers left upside on the table. The single largest trade was a sale of 27,450 shares worth $6.32M on 2026-03-02. Since the most recent filing the stock has moved +11.7%, from $228.13. Insiders paid an average of $247.12 per share for their open-market purchases; against the last close of $254.88 that cost basis is sitting on a gain at +3.1%.

Where AJG trades relative to its one-year range

Arthur J. Gallagher & Co. closed at $254.88 on 2026-10-16, inside a one-year range of $192.00 to $283.04. That puts the stock in the middle of its range, at 69.1% of the distance from low to high. Over one year the share price moved -9.0%, and over roughly three months +0.4%. Average daily volume over the last month was about 1,443,300 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%. AJG is behind that median and beat 38% of that peer group on this measure.

Members of Congress who traded AJG

STOCK Act disclosures show 46 trades in AJG by 11 members of Congress over five years (27 purchases, 19 sales), most recently on 2026-06-30. The most active traders were Ro Khanna (D-CA), 21 trades; Michael T. McCaul (R-TX), 8 trades; Julie Johnson (D-TX), 3 trades; Kelly Morrison (D-MN), 3 trades; Gilbert Ray Cisneros, Jr. (D-CA), 2 trades.

By party the trades split 32 by Democrats, 14 by Republicans; by chamber, 45 from the House, 1 from the Senate.

AJG lobbying disclosures

Arthur J. Gallagher & Co. appears in 3 Lobbying Disclosure Act filings between 2018 and 2018, with $90.0K in reported lobbying spend.

Compare AJG with indexed peers from the same industry group

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

• AON one-year return -14.7%
• 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 2026-03-06
• edge_prices_eod (end-of-day close) — as of 2026-10-16
• House PTR / Senate eFD disclosures (edge_congress_trades) — as of 2026-06-30
• Senate LDA filings (edge_lobbying_filings)

AJG data questions

Are AJG insiders buying or selling stock?

Over the past year Arthur J. Gallagher & Co. insiders filed 9 open-market Form 4 trades — 1 purchases worth $988.5K and 8 sales worth $16.34M — which makes them net sellers by $15.35M.

What is the one-year price range for AJG?

Based on end-of-day closes through 2026-10-16, AJG traded between $192.00 and $283.04, last closing at $254.88.

Has any member of Congress traded AJG stock?

Yes. 11 members disclosed 46 trades in AJG over five years; the most recent disclosed trade date is 2026-06-30.