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CIK 0000354190 · Large accelerated filer

Arthur J. Gallagher & Co.

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Ticker
AJG
Exchange
NYSE
Industry
Insurance Agents, Brokers & Service
FY end
Dec 31
Incorporated
DE
Entity type
operating
EIN
362151613
Phone
630-773-3800
Business address
2850 GOLF ROAD, ROLLING MEADOWS, IL, 60008-4050
Former names
GALLAGHER ARTHUR J & CO
Open-market buys, last 90 days
$0
in 0 filings
Open-market sales, last 90 days
$29,193,204
in 8 filings

Net −$29,193,204. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Reading 100 more Form 4s from the SEC; this list fills in as they're read.

Date Insider Transaction Shares Price Value Owned after
2026-03-23 Gallagher Patrick Murphy Chief Operating Officer Gift +704 11,264
2026-03-20 Gallagher Patrick Murphy Chief Operating Officer Other acquisition · Notional Stock Units +1,444.73 $214.82 $310K 2,351.8
2026-03-16 Pesch Michael Robert Vice President Shares withheld for taxes −525 $207.93 $109K 44,379.27
2026-03-16 Jain Vishal VICE PRESIDENT Shares withheld for taxes −501 $207.93 $104K 66,740.69
2026-03-16 Mead Christopher E VICE PRESIDENT Shares withheld for taxes −432 $207.93 $90K 22,112.73
2026-03-16 Gallagher Patrick Murphy Chief Operating Officer Shares withheld for taxes −525 $207.93 $109K 38,575.66
2026-03-15 Ziebell William F VICE PRESIDENT Grant or award +6,930 6,930
2026-03-15 Ziebell William F VICE PRESIDENT Option exercise −6,930 0
2026-03-15 Ziebell William F VICE PRESIDENT Option exercise +6,930 51,005.82
2026-03-15 Ziebell William F VICE PRESIDENT Shares withheld for taxes −2,321 $207.93 $483K 48,684.82
2026-03-15 Jain Vishal VICE PRESIDENT Grant or award +6,214 6,214
2026-03-15 Jain Vishal VICE PRESIDENT Option exercise +6,214 69,886.69
2026-03-15 Jain Vishal VICE PRESIDENT Shares withheld for taxes −2,645 $207.93 $550K 67,241.69
2026-03-15 Pietrucha Susan E Chief Human Resources Officer Grant or award +6,612 6,612
2026-03-15 Pietrucha Susan E Chief Human Resources Officer Option exercise −6,612 0
2026-03-15 Pietrucha Susan E Chief Human Resources Officer Option exercise +6,612 18,582.77
2026-03-15 Pietrucha Susan E Chief Human Resources Officer Shares withheld for taxes −2,186 $207.93 $455K 16,396.77
2026-03-15 Mead Christopher E VICE PRESIDENT Grant or award +5,258 5,258
2026-03-15 Mead Christopher E VICE PRESIDENT Option exercise −5,258 0
2026-03-15 Mead Christopher E VICE PRESIDENT Option exercise +5,258 24,563.73

Page 5 of 22 · 433 trades