<SEC-DOCUMENT>0001127602-21-017196.txt : 20210518
<SEC-HEADER>0001127602-21-017196.hdr.sgml : 20210518
<ACCEPTANCE-DATETIME>20210518161853
ACCESSION NUMBER:		0001127602-21-017196
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210515
FILED AS OF DATE:		20210518
DATE AS OF CHANGE:		20210518

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Cavaness Joel D
		CENTRAL INDEX KEY:			0001665268

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-09761
		FILM NUMBER:		21936216

	MAIL ADDRESS:	
		STREET 1:		2 PIERCE PLACE
		CITY:			ITASCA
		STATE:			IL
		ZIP:			60143

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Arthur J. Gallagher & Co.
		CENTRAL INDEX KEY:			0000354190
		STANDARD INDUSTRIAL CLASSIFICATION:	INSURANCE AGENTS BROKERS & SERVICES [6411]
		IRS NUMBER:				362151613
		STATE OF INCORPORATION:			IL
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		2850 GOLF ROAD
		CITY:			ROLLING MEADOWS
		STATE:			IL
		ZIP:			60008-4050
		BUSINESS PHONE:		630-773-3800

	MAIL ADDRESS:	
		STREET 1:		2850 GOLF ROAD
		CITY:			ROLLING MEADOWS
		STATE:			IL
		ZIP:			60008-4050

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ARTHUR J. GALLAGHER & CO.
		DATE OF NAME CHANGE:	20190819

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	GALLAGHER ARTHUR J & CO
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
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    <footnotes>
        <footnote id="F1">Deemed acquired due to marriage on May 15, 2021.</footnote>
        <footnote id="F2">Consists of 600 RSUs granted 3/16/2017; 500 RSUs granted 3/15/2018; 450 RSUs granted 3/14/2019; 440 RSUs granted 3/12/2020; and 195 RSUs granted 3/16/2021.</footnote>
        <footnote id="F3">Restricted stock unit award vesting five years after the date of grant.</footnote>
        <footnote id="F4">Each share of phantom stock represents a right to receive one share of Gallagher common stock.</footnote>
        <footnote id="F5">This award was granted in 2017 and vests on March 31, 2022.</footnote>
        <footnote id="F6">These shares represent awards under the Deferred Cash Participation Plan, a nonqualified deferred compensation plan of the Company, which have been deemed invested in Company common stock at the election of the participant. Participants vest in these awards on the fifth anniversary of the date of grant.</footnote>
        <footnote id="F7">One-third of this stock option becomes exerciseable on each of the 3rd, 4th, and 5th anniversaries of the grant date.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Seth Diehl, by power of attorney</signatureName>
        <signatureDate>2021-05-18</signatureDate>
    </ownerSignature>
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</SEC-DOCUMENT>
