SEC Form 4 reporting owner

Bay Walter D.

Bay Walter D. has filed 9 Form 4 transactions reported between December 19, 2025 and August 24, 2026, as General Counsel of Arthur J. Gallagher & Co..

Name as filed: Bay Walter D.

Open-market buys, 24 mo

None

reported

Open-market sales, 24 mo

$3.2M

1 lines

Companies

with Form 4 filings

Latest transaction

Aug 24, 2026

transaction date

Roles and reported holdings

AJGArthur J. Gallagher & Co.
Dec 19, 2025 – Aug 24, 2026
General Counsel
Held directly71,292 sh as of Aug 24, 2026 · Form 4
24 months: $3.2M sold

Transaction history

All 9 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

Date	Company	Type	Shares	Price	Value	Owned after	Filing
Aug 24, 2026	AJGGeneral Counsel	Open-market saleCode S · direct	12,000	$270.08	$3.2M@ $270.08	71,292	Form 4
Mar 31, 2026	AJGGeneral Counsel	Shares withheld for tax or exercise priceCode F · direct	627	$215.95	$135K@ $215.95	83,292	Form 4
Mar 31, 2026	AJGGeneral Counsel	Option exerciseCode M · direct	1,415	$215.95	$306K@ $215.95	83,919	Form 4
Mar 15, 2026	AJGGeneral Counsel	Shares withheld for tax or exercise priceCode F · direct	2,411	$207.93	$501K@ $207.93	75,414	Form 4
Mar 15, 2026	AJGGeneral Counsel	Grant or awardCode A · direct	7,090	—	—	7,090	Form 4
Mar 4, 2026	AJGGeneral Counsel	Grant or awardCode A · direct	1,982	$227.01	$450K@ $227.01	5,399	Form 4
Mar 1, 2026	AJGGeneral Counsel	Grant or awardCode A · direct	16,952	—	—	16,952	Form 4
Dec 19, 2025	AJGGeneral Counsel	GiftCode G · direct	1,724	—	—	77,825	Form 4
Dec 19, 2025	AJGGeneral Counsel	Option exerciseCode M · direct	15,850	$79.59	$1.3M@ $79.59	95,399	Form 4

How this page is built

Every row comes from a Form 4 filed with the SEC, which officers, directors and holders of more than 10% of a company’s stock must file within two business days of a trade. Transactions are grouped by the reporting owner’s name as filed (spacing, capitals and punctuation ignored); two different people filing under an identical name would appear together, and one person filing under two spellings appears on two pages.

Open-market totals count code P purchases and code S sales over the last 24 months. The same trade reported on more than one filing is counted once; when another owner (for example a fund and its general partner) reports the identical trade, they are listed beside it. Holdings are the shares owned after the latest purchase, sale, gift or tax-withholding line, shown separately for direct and indirect ownership; an indirect figure is one holding line, not a total across every trust or entity.

This page describes what was filed with the SEC; it is not investment advice or a recommendation to buy or sell any security.