Arthur J. Gallagher & Co.

For the period ended Dec 31, 2025. Filed Feb 17, 2026.

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A company's yearly report to the SEC, with audited financial statements. It is the fullest account a company gives of its business, its finances and the risks it sees.

FY2025 · Filed Feb 17, 2026

AJG$280.60-0.4%Stored close · as of Nov 9, 2026

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Contents

Signatures

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized on the 17 th day of February, 2026.

ARTHUR J. GALLAGHER & CO.
By	/S/ J. PATRICK GALLAGHER, JR.
	J. Patrick Gallagher, Jr.
	Chairman and Chief Executive Officer

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below on the 17 th day of February, 2026 by the following persons on behalf of the Registrant in the capacities indicated.

J. Patrick Gallagher, Jr.
Name	Title
/S/ J. PATRICK GALLAGHER, JR.	Chairman, Chief Executive Officer and Director (Principal Executive Officer)
/S/ DOUGLAS K. HOWELL	Vice President and Chief Financial Officer (Principal Financial Officer)
Douglas K. Howell
/S/ RICHARD C. CARY	Controller (Principal Accounting Officer)
Richard C. Cary
*SHERRY BARRAT	Director
Sherry Barrat
*DEBORAH CAPLAN	Director
Deborah Caplan
*TERESA CLARKE	Director
Teresa Clarke
* JOHN COLDMAN	Director
John Coldman
* RICHARD HARRIES	Director
Richard Harries
	Director
David Johnson
*CHRIS.MISKEL	Director
Chris Miskel
* RALPH NICOLETTI	Director
Ralph Nicoletti
*NORMAN ROSENTHAL	Director
Norman Rosenthal

*By:	/S/ WALTER D. BAY
	Walter D. Bay, Attorney-in-Fact

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