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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
2026-03-15 Mead Christopher E VICE PRESIDENT Shares withheld for taxes −2,019 $207.93 $420K 22,544.73
2026-03-15 Hudson Scott R Vice President Grant or award +7,170 7,170
2026-03-15 Hudson Scott R Vice President Option exercise −7,170 0
2026-03-15 Hudson Scott R Vice President Option exercise +7,170 93,090
2026-03-15 Hudson Scott R Vice President Shares withheld for taxes −2,828 $207.93 $588K 90,262
2026-03-15 HOWELL DOUGLAS K VP & Chief Financial Officer Grant or award +9,082 9,082
2026-03-15 HOWELL DOUGLAS K VP & Chief Financial Officer Option exercise −9,082 0
2026-03-15 HOWELL DOUGLAS K VP & Chief Financial Officer Option exercise +9,082 110,574.76
2026-03-15 HOWELL DOUGLAS K VP & Chief Financial Officer Shares withheld for taxes −3,865 $207.93 $804K 106,709.76
2026-03-15 GALLAGHER THOMAS JOSEPH President Grant or award +9,560 9,560
2026-03-15 GALLAGHER THOMAS JOSEPH President Option exercise −9,560 0
2026-03-15 GALLAGHER THOMAS JOSEPH President Option exercise +9,560 328,251.08
2026-03-15 GALLAGHER THOMAS JOSEPH President Shares withheld for taxes −4,068 $207.93 $846K 324,183.08
2026-03-15 Gallagher Patrick Murphy Chief Operating Officer Grant or award +4,620 4,620
2026-03-15 Gallagher Patrick Murphy Chief Operating Officer Option exercise −4,620 0
2026-03-15 Gallagher Patrick Murphy Chief Operating Officer Option exercise +4,620 41,062.66
2026-03-15 Gallagher Patrick Murphy Chief Operating Officer Shares withheld for taxes −1,962 $207.93 $408K 39,100.66
2026-03-15 GALLAGHER J PATRICK JR CEO Grant or award +45,048 45,048
2026-03-15 GALLAGHER J PATRICK JR CEO Option exercise −45,048 0
2026-03-15 GALLAGHER J PATRICK JR CEO Option exercise +45,048 140,152.93

Page 6 of 22 · 433 trades