Richard C. Cary - 15 Mar 2026 Form 4 Insider Report for Arthur J. Gallagher & Co. (AJG)

Role
Controller, CAO
Signature
/s/ Monica Norzagaray, by power of attorney
Issuer symbol
AJG
Transactions as of
15 Mar 2026
Net transactions value
$0
Form type
4
Filing time
17 Mar 2026, 21:21:11 UTC
Previous filing
20 Nov 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
CARY RICHARD C Controller, CAO 2850 GOLF ROAD, ROLLING MEADOWS /s/ Monica Norzagaray, by power of attorney 17 Mar 2026 0001185998

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction AJG Common Stock Tax liability -181 -0.36% $207.93* 50,487 15 Mar 2026 Direct F1
holding AJG Common Stock 419 15 Mar 2026 Gallagher 401(k) plan account

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
holding AJG Non-qualified Stock Option 2,349 15 Mar 2026 Common Stock 2,349 $127.90 Direct F2
holding AJG Non-qualified Stock Option 2,265 15 Mar 2026 Common Stock 2,265 $158.56 Direct F2
holding AJG Non-qualified Stock Option 1,572 15 Mar 2026 Common Stock 1,572 $177.09 Direct F3
holding AJG Non-qualified Stock Option 1,219 15 Mar 2026 Common Stock 1,219 $86.17 Direct F2
holding AJG Notional Stock Units 1,018 15 Mar 2026 Common Stock 1,018 Direct F4, F5
holding AJG Phantom Stock 631 15 Mar 2026 Common Stock 631 Direct F6, F7
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Shares withheld to cover applicable tax obligations relating to the vesting of restricted stock units.
F2 One-third of this stock option becomes exerciseable on each of the 3rd, 4th, and 5th anniversaries of the grant date.
F3 One-third of this stock option becomes exercisable on each of the 3rd, 4th, and 5th anniversaries of the grant date.
F4 Each notional stock unit represents a right to receive one share of Gallagher common stock.
F5 The notional stock units become payable following the reporting person's separation from service with Gallagher.
F6 Each share of phantom stock represents a right to receive one share of Gallagher common stock.
F7 These shares represent awards under the Age 62 Plan, a nonqualified deferred compensation plan of the Company, which have been deemed invested in Company common stock at the election of the reporting person. Participants vest in these awards when they attain age 62, or after a one-year period for participants who have attained age 61.