Patrick Murphy Gallagher - 01 Mar 2026 Form 4 Insider Report for Arthur J. Gallagher & Co. (AJG)

Role
Chief Operating Officer
Signature
/s/ Monica Norzagaray, by power of attorney
Issuer symbol
AJG
Transactions as of
01 Mar 2026
Net transactions value
+$397,950
Form type
4
Filing time
03 Mar 2026, 18:37:29 UTC
Previous filing
11 Jun 2025
Next filing
05 Mar 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Gallagher Patrick Murphy Chief Operating Officer 2850 GOLF ROAD, ROLLING MEADOWS /s/ Monica Norzagaray, by power of attorney 03 Mar 2026 0001929606

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction AJG Common Stock Options Exercise $397,950 +5,000 +16% $79.59 36,443 03 Mar 2026 Direct
holding AJG Common Stock 10,560 01 Mar 2026 By Spouse as Trustee F1
holding AJG Common Stock 419 01 Mar 2026 Gallagher 401(k) plan account
holding AJG Common Stock 53,112 01 Mar 2026 By Spouse's Trust F2
holding AJG Common Stock 83,407 01 Mar 2026 By Trust
holding AJG Common Stock 20,432 01 Mar 2026 By Trust F3
holding AJG Common Stock 54,959 01 Mar 2026 By Irrevocable Trust

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 Award $0 +17,775 $0.000000 17,775 01 Mar 2026 Common Stock 17,775 $228.20 Direct F4
transaction AJG Non-qualified Stock Option Options Exercise $0 -5,000 -100% $0.000000 0 03 Mar 2026 Common Stock 5,000 $79.59 Direct F5, F6
holding AJG Phantom Stock 16,053 01 Mar 2026 Common Stock 16,053 Direct F7, F8
holding AJG Non-qualified Stock Option 11,901 01 Mar 2026 Common Stock 11,901 $337.74 Direct F5, F9
holding AJG Non-qualified Stock Option 11,386 01 Mar 2026 Common Stock 11,386 $243.54 Direct F10
holding AJG Non-qualified Stock Option 7,255 01 Mar 2026 Common Stock 7,255 $127.90 Direct F5, F11
holding AJG Non-qualified Stock Option 6,270 01 Mar 2026 Common Stock 6,270 $86.17 Direct F5, F12
holding AJG Non-qualified Stock Option 6,160 01 Mar 2026 Common Stock 6,160 $177.09 Direct F13
holding AJG Non-qualified Stock Option 5,510 01 Mar 2026 Common Stock 5,510 $158.56 Direct F5, F14
holding AJG Phantom Stock 3,805 01 Mar 2026 Common Stock 3,805 Direct F7, F15
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Shares held in trusts, for the benefit of the reporting person's children, of which his wife is sole trustee.
F2 Shares held in a revocable trust and an irrevocable trust of which the reporting person's spouse is sole Trustee and as to which he disclaims beneficial ownership
F3 Shares held in trust for the benefit of the reporting person's children, of which he is a trustee.
F4 One-third of this stock option becomes exercisable on each of the 3rd, 4th, and 5th anniversaries of the grant date.
F5 One-third of this stock option becomes exerciseable on each of the 3rd, 4th, and 5th anniversaries of the grant date.
F6 Grant date of 3/14/2019.
F7 Each share of phantom stock represents a right to receive one share of Gallagher common stock.
F8 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.
F9 Closing price of Gallagher common stock on February 28, 2025.
F10 One-third of this stock option becomes exercisable on each of the 3rd, 4th, and 5th anniversaries of the grant date.
F11 Grant date of 3/16/2021.
F12 Grant date of 3/12/2020.
F13 One-third of this stock option becomes exerciseable on each of the 3rd, 4th, and 5th anniversaries of the grant date.
F14 Grant date of 3/15/2022.
F15 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. These awards are payable in a lump sum on the six-month anniversary of the reporting person's separation from service.

Remarks:

Ex-24: Power of Attorney.