Vishal Jain - 01 Jan 2026 Form 4 Insider Report for Arthur J. Gallagher & Co. (AJG)

Signature
/s/ Monica Norzagaray, by power of attorney
Issuer symbol
AJG
Transactions as of
01 Jan 2026
Net transactions value
-$67,027
Form type
4
Filing time
05 Jan 2026, 21:33:50 UTC
Previous filing
02 Apr 2025
Next filing
03 Mar 2026

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Jain Vishal VICE PRESIDENT 2850 GOLF ROAD, ROLLING MEADOWS /s/ Monica Norzagaray, by power of attorney 05 Jan 2026 0001812516

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction AJG Common Stock Options Exercise $0 +955 +1.7% $0.000000 58,678 01 Jan 2026 Direct
transaction AJG Common Stock Tax liability $67,027 -259 -0.44% $258.79 58,419 01 Jan 2026 Direct F1
holding AJG Common Stock 419 01 Jan 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
transaction AJG Phantom Stock Options Exercise $0 -955 -2.5% $0.000000 37,265 01 Jan 2026 Common Stock 955 Direct F10, F11
holding AJG Non-qualified Stock Option 8,450 01 Jan 2026 Common Stock 8,450 $79.59 Direct F2, F3
holding AJG Non-qualified Stock Option 10,450 01 Jan 2026 Common Stock 10,450 $86.17 Direct F3, F4
holding AJG Non-qualified Stock Option 13,580 01 Jan 2026 Common Stock 13,580 $127.90 Direct F3
holding AJG Non-qualified Stock Option 9,950 01 Jan 2026 Common Stock 9,950 $158.56 Direct F3
holding AJG Non-qualified Stock Option 8,284 01 Jan 2026 Common Stock 8,284 $177.09 Direct F5
holding AJG Non-qualified Stock Option 8,707 01 Jan 2026 Common Stock 8,707 $243.54 Direct F6
holding AJG Non-qualified Stock Option 9,587 01 Jan 2026 Common Stock 9,587 $337.74 Direct F3, F7
holding AJG Notional Stock Units 4,899 01 Jan 2026 Common Stock 4,899 $0.000000 Direct F8, F9
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 In the past, Common Stock and Common Stock (Restricted) were reported as two separate line items. In the future, they will be reported as a combined total as is stated on this Form.
F2 Grant date of 3/14/2019.
F3 One-third of this stock option becomes exerciseable on each of the 3rd, 4th, and 5th anniversaries of the grant date.
F4 Grant date of 3/12/2020.
F5 One-third of this stock option becomes exerciseable on each of the 3rd, 4th, and 5th anniversaries of the grant date.
F6 One-third of this stock option becomes exercisable on each of the 3rd, 4th, and 5th anniversaries of the grant date.
F7 Closing price of Gallagher common stock on February 28, 2025.
F8 Each notional stock unit represents a right to receive one share of Gallagher common stock.
F9 The notional stock units become payable following the reporting person's separation from service with Gallagher.
F10 Each share of phantom stock represents a right to receive one share of Gallagher common stock.
F11 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.

Remarks:

The transactions in this report relate solely to the withholding of shares to cover applicable income and employment taxes with respect to the distribution of an award under the Age 62 Plan.