Susan E. Pietrucha - 19 May 2025 Form 4 Insider Report for Arthur J. Gallagher & Co. (AJG)

Signature
/s/ Monica Norzagaray, by power of attorney
Issuer symbol
AJG
Transactions as of
19 May 2025
Net transactions value
-$3,571,263
Form type
4
Filing time
20 May 2025, 17:32:40 UTC
Previous filing
18 Mar 2025
Next filing
03 Mar 2026

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Pietrucha Susan E Chief Human Resources Officer 2850 GOLF ROAD, ROLLING MEADOWS /s/ Monica Norzagaray, by power of attorney 20 May 2025 0001386997

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction AJG Common Stock Options Exercise $1,074,465 +13,500 +113% $79.59 25,441 19 May 2025 Direct
transaction AJG Common Stock Sale $4,645,728 -13,500 -53% $344.13 11,941 19 May 2025 Direct F1
holding AJG Common Stock 295 19 May 2025 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
transaction AJG Non-qualified Stock Option Options Exercise $0 -13,500 -100% $0.000000 0 19 May 2025 Common Stock 13,500 $79.59 Direct F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 The price reported is an average weighted price. The shares were sold in multiple transactions on 5/19/2025 at prices ranging from $344.00 to $344.49. The reporting person will provide to the Securities and Exchange Commission staff, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in the footnotes to this Form 4.
F2 One-third of this stock option becomes exerciseable on each of the 3rd, 4th, and 5th anniversaries of the grant date.