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Company

Arthur J. Gallagher & Co.

AJG · CIK 0000354190

SEC FORM 4
$252,858.30

Arthur J. Gallagher & Co. (AJG)

Sale of 1,000 shares at $252.8583 per share.

Reporting Person CARY RICHARD C · Officer Title Controller, CAO · Transaction Code S

Traded Sep 15, 2026 · Disclosed Sep 17, 2026

Source: SEC Form 4 · 0000354190-26-000209 · filed 2026-09-17 · View filing →

SEC FORM 4
$1,034,040.00

Arthur J. Gallagher & Co. (AJG)

Acquisition (code M) of 12,000 shares at $86.17 per share.

Reporting Person Hudson Scott R · Officer Title Vice President · Transaction Code M

Traded Sep 2, 2026 · Disclosed Sep 4, 2026

Source: SEC Form 4 · 0000354190-26-000203 · filed 2026-09-04 · View filing →

SEC FORM 4
$3,169,596.00

Arthur J. Gallagher & Co. (AJG)

Sale of 12,000 shares at $264.133 per share.

Reporting Person Hudson Scott R · Officer Title Vice President · Transaction Code S

Traded Sep 2, 2026 · Disclosed Sep 4, 2026

Source: SEC Form 4 · 0000354190-26-000203 · filed 2026-09-04 · View filing →

SEC FORM 4
$40,000.06

Arthur J. Gallagher & Co. (AJG)

Acquisition (code A) of 152.672 shares at $262.00 per share.

Reporting Person Miskel Christopher C. · Transaction Code A

Traded Sep 1, 2026 · Disclosed Sep 2, 2026

Source: SEC Form 4 · 0000354190-26-000201 · filed 2026-09-02 · View filing →

SEC FORM 4
$3,240,972.00

Arthur J. Gallagher & Co. (AJG)

Sale of 12,000 shares at $270.081 per share.

Reporting Person Bay Walter D. · Officer Title General Counsel · Transaction Code S

Traded Aug 24, 2026 · Disclosed Aug 26, 2026

Source: SEC Form 4 · 0000354190-26-000199 · filed 2026-08-26 · View filing →

SEC FORM 4
$301,595.00

Arthur J. Gallagher & Co. (AJG)

Acquisition (code M) of 3,500 shares at $86.17 per share.

Reporting Person Mead Christopher E · Officer Title VICE PRESIDENT · Transaction Code M

Traded Aug 19, 2026 · Disclosed Aug 20, 2026

Source: SEC Form 4 · 0000354190-26-000195 · filed 2026-08-20 · View filing →

SEC FORM 4
$899,587.50

Arthur J. Gallagher & Co. (AJG)

Sale of 3,500 shares at $257.025 per share.

Reporting Person Mead Christopher E · Officer Title VICE PRESIDENT · Transaction Code S

Traded Aug 19, 2026 · Disclosed Aug 20, 2026

Source: SEC Form 4 · 0000354190-26-000195 · filed 2026-08-20 · View filing →

SEC FORM 4
$0.00

Arthur J. Gallagher & Co. (AJG)

Acquisition (code M) of 1,280.485 shares at $0 per share.

Reporting Person Bloom Mark H. · Officer Title Vice President · Transaction Code M

Traded Aug 16, 2026 · Disclosed Aug 18, 2026

Source: SEC Form 4 · 0000354190-26-000193 · filed 2026-08-18 · View filing →

SEC FORM 4
$152,437.74

Arthur J. Gallagher & Co. (AJG)

Disposition (code F) of 606.814 shares at $251.21 per share.

Reporting Person Bloom Mark H. · Officer Title Vice President · Transaction Code F

Traded Aug 16, 2026 · Disclosed Aug 18, 2026

Source: SEC Form 4 · 0000354190-26-000193 · filed 2026-08-18 · View filing →

STOCK ACT PTR
$1,001 - $15,000

Arthur J. Gallagher & Co (AJG)

Purchase.

Filer Michael McCaul · Chamber House · District TX10 · Owner Spouse · Transaction Type Purchase · Asset Type Stock

Traded Jun 10, 2026 · Disclosed Jul 8, 2026FILED +28 DAYS

Source: House Clerk PTR · 9116211 · filed 2026-07-08 · View filing →

STOCK ACT PTR
$1,001 - $15,000

Arthur J. Gallagher & Co (AJG)

Purchase.

Filer Michael T. McCaul · Chamber House · District TX10 · Owner Spouse · Transaction Type Purchase · Asset Type Stock

Traded Jun 10, 2026 · Disclosed Jul 8, 2026FILED +28 DAYS

Source: House Clerk PTR · 9116211 · filed 2026-07-08 · View filing →

STOCK ACT PTR
$1,001 - $15,000

Arthur J. Gallagher & Co (AJG)

Purchase.

Filer Michael McCaul · Chamber House · District TX10 · Owner Spouse · Transaction Type Purchase · Asset Type Stock

Traded Jun 3, 2026 · Disclosed Jul 8, 2026FILED +35 DAYS

Source: House Clerk PTR · 9116211 · filed 2026-07-08 · View filing →

STOCK ACT PTR
$1,001 - $15,000

Arthur J. Gallagher & Co (AJG)

Purchase.

Filer Michael T. McCaul · Chamber House · District TX10 · Owner Spouse · Transaction Type Purchase · Asset Type Stock

Traded Jun 3, 2026 · Disclosed Jul 8, 2026FILED +35 DAYS

Source: House Clerk PTR · 9116211 · filed 2026-07-08 · View filing →

STOCK ACT PTR
$1,001 - $15,000

Arthur J. Gallagher & Co (AJG)

Purchase.

Filer Ro Khanna · Chamber House · District CA17 · Transaction Type Purchase · Asset Type Stock

Traded Jun 2, 2026 · Disclosed Jul 6, 2026FILED +34 DAYS

Source: House Clerk PTR · 9116206 · filed 2026-07-06 · View filing →

STOCK ACT PTR
$1,001 - $15,000

Arthur J. Gallagher & Co (AJG)

Purchase.

Filer Michael McCaul · Chamber House · District TX10 · Owner Spouse · Transaction Type Purchase · Asset Type Stock

Traded Apr 7, 2026 · Disclosed May 4, 2026FILED +27 DAYS

Source: House Clerk PTR · 9115820 · filed 2026-05-04 · View filing →

STOCK ACT PTR
$1,001 - $15,000

Arthur J. Gallagher & Co (AJG)

Purchase.

Filer Michael McCaul · Chamber House · District TX10 · Owner Spouse · Transaction Type Purchase · Asset Type Stock

Traded Apr 6, 2026 · Disclosed May 4, 2026FILED +28 DAYS

Source: House Clerk PTR · 9115820 · filed 2026-05-04 · View filing →

STOCK ACT PTR
$15,001 - $50,000

Arthur J. Gallagher & Co (AJG)

Purchase.

Filer Michael McCaul · Chamber House · District TX10 · Owner Spouse · Transaction Type Purchase · Asset Type Stock

Traded Mar 25, 2026 · Disclosed Apr 8, 2026FILED +14 DAYS

Source: House Clerk PTR · 9115728 · filed 2026-04-08 · View filing →

STOCK ACT PTR
$15,001 - $50,000

Arthur J. Gallagher & Co (AJG)

Purchase.

Filer Michael McCaul · Chamber House · District TX10 · Owner Spouse · Transaction Type Purchase · Asset Type Stock

Traded Mar 12, 2026 · Disclosed Apr 8, 2026FILED +27 DAYS

Source: House Clerk PTR · 9115728 · filed 2026-04-08 · View filing →

STOCK ACT PTR
$15,001 - $50,000

Arthur J. Gallagher & Co (AJG)

Purchase.

Filer Michael McCaul · Chamber House · District TX10 · Owner Spouse · Transaction Type Purchase · Asset Type Stock

Traded Mar 4, 2026 · Disclosed Apr 8, 2026FILED +35 DAYS

Source: House Clerk PTR · 9115728 · filed 2026-04-08 · View filing →