Arthur J. Gallagher & Co. vice president William F Ziebell sells $6.74M of AJG stock

William F Ziebell, a vice president of Arthur J. Gallagher & Co. (AJG), sold 23,510 shares on Nov 4 at an average price of $286.63, a total of $6.74 million, according to a Form 4 filed with the SEC on Nov 5.

The Form 4 does not tick the Rule 10b5-1 box: the sale is not reported as part of a pre-arranged trading plan. The trade was reported within two business days, as Section 16 requires.

The insider still holds 48,942 shares after the sale, 32% fewer than before. Three Arthur J. Gallagher & Co. insiders sold on the open market within 14 days, a pattern known as a cluster sell.

The numbers below are taken from the Form 4 as filed with the SEC.

The sale

Company	Arthur J. Gallagher & Co. (AJG)
Insider	William F Ziebell
Role	Vice President
Transaction	Open-market sale (code S)
Shares	23,510
Average price	$286.63
Value	$6,738,554
Trade date	Nov 4, 2026
Filed with the SEC	Nov 5, 2026, 5:56 PM ET
Shares held after	48,942
Ownership	Direct
Rule 10b5-1 plan	Not marked in the filing

See every transaction in this Arthur J. Gallagher & Co. filing

View the Form 4 on SEC.gov

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Source: SEC Form 4. Information only, not investment advice. Not affiliated with or endorsed by the U.S. Securities and Exchange Commission.