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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.

Pace of trading Bought Sold

Who's trading

90 days

  1. HOWELL DOUGLAS K −$8.5M VP & Chief Financial Officer sold 25% of stake
  2. Ziebell William F −$6.7M VICE PRESIDENT sold 32% of stake
  3. Pietrucha Susan E −$4.2M Chief Human Resources Officer sold 47% of stake
  4. Bay Walter D. −$3.2M General Counsel sold 14% of stake
  5. Hudson Scott R −$3.2M Vice President sold 12% of stake

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

Date Insider Transaction Shares Price Value Owned after
2026-05-26 GALLAGHER J PATRICK JR CEO Gift −14,698 109,416.96
2026-05-12 Caplan Deborah H Director Grant or award +1,110 2,650
2026-05-12 Clarke Teresa Hillary Director Grant or award +1,110 5,566.73
2026-05-12 Coldman David John Director Grant or award +1,110 16,344
2026-05-12 Harries Richard de Winton Wilkin Director Grant or award +1,110 2,413
2026-05-12 JOHNSON DAVID S Director Grant or award +1,110 47,150.02
2026-05-12 Miskel Christopher C. Director Grant or award +1,110 10,447.69
2026-05-12 NICOLETTI RALPH J Director Grant or award +1,110 18,414.31
2026-05-12 ROSENTHAL NORMAN L Director Grant or award +1,110 43,326.66
2026-03-31 GALLAGHER THOMAS JOSEPH President Option exercise +76.38 $215.95 $16K 323,467.46
2026-03-31 GALLAGHER THOMAS JOSEPH President Shares withheld for taxes −76.38 $215.95 $16K 323,391.08
2026-03-31 GALLAGHER THOMAS JOSEPH President Option exercise · Phantom Stock −76.38 20,214.46
2026-03-31 HOWELL DOUGLAS K VP & Chief Financial Officer Option exercise +76.38 $215.95 $16K 106,786.14
2026-03-31 HOWELL DOUGLAS K VP & Chief Financial Officer Shares withheld for taxes −76.38 $215.95 $16K 106,709.76
2026-03-31 HOWELL DOUGLAS K VP & Chief Financial Officer Option exercise · Phantom Stock −76.38 6,866.9
2026-03-31 Hudson Scott R Vice President Option exercise +63.65 $215.95 $14K 90,325.65
2026-03-31 Hudson Scott R Vice President Shares withheld for taxes −63.65 $215.95 $14K 90,262
2026-03-31 Hudson Scott R Vice President Option exercise · Phantom Stock −63.65 3,705.71
2026-03-31 Jain Vishal VICE PRESIDENT Option exercise +50.92 $215.95 $11K 66,791.61
2026-03-31 Jain Vishal VICE PRESIDENT Shares withheld for taxes −50.92 $215.95 $11K 66,740.69

Page 3 of 22 · 433 trades