Douglas K. Howell - 13 Mar 2026 Form 4 Insider Report for Arthur J. Gallagher & Co. (AJG)

Role
VP & Chief Financial Officer
Signature
/s/ Monica Norzagaray, by power of attorney
Issuer symbol
AJG
Transactions as of
13 Mar 2026
Net transactions value
$0
Form type
4
Filing time
17 Mar 2026, 21:39:57 UTC
Previous filing
06 Mar 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
HOWELL DOUGLAS K VP & Chief Financial Officer 2850 GOLF ROAD, ROLLING MEADOWS /s/ Monica Norzagaray, by power of attorney 17 Mar 2026 0001222374

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction AJG Common Stock Options Exercise +14,100 +15% $79.59* 110,131 13 Mar 2026 Direct
transaction AJG Common Stock Tax liability -8,638 -7.8% $207.93* 101,493 13 Mar 2026 Direct
transaction AJG Common Stock (restricted) Award +9,082 $0.000000* 9,082 15 Mar 2026 Direct F1
transaction AJG Common Stock (restricted) Options Exercise -9,082 -100% $0.000000* 0 15 Mar 2026 Direct
transaction AJG Common Stock Options Exercise +9,082 +8.9% $0.000000* 110,575 15 Mar 2026 Direct
transaction AJG Common Stock Tax liability -3,865 -3.5% $207.93* 106,710 15 Mar 2026 Direct
holding AJG Common Stock 3,165 13 Mar 2026 By Spouse F2
holding AJG Common Stock 491 13 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
transaction AJG Non-qualified Stock Option Options Exercise -14,100 -100% $0.000000* 0 13 Mar 2026 Common Stock 14,100 $79.59 Direct F3, F4
holding AJG Notional Stock Units 208,342 13 Mar 2026 Common Stock 208,342 $0.000000 Direct F5, F6
holding AJG Notional Stock Units 192,204 13 Mar 2026 Common Stock 192,204 $0.000000 Direct F5, F7
holding AJG Non-qualified Stock Option 31,265 13 Mar 2026 Common Stock 31,265 $127.90 Direct F4
holding AJG Non-qualified Stock Option 20,737 13 Mar 2026 Common Stock 20,737 $228.20 Direct F8
holding AJG Non-qualified Stock Option 17,130 13 Mar 2026 Common Stock 17,130 $86.17 Direct F4
holding AJG Non-qualified Stock Option 14,545 13 Mar 2026 Common Stock 14,545 $158.56 Direct F4
holding AJG Non-qualified Stock Option 13,884 13 Mar 2026 Common Stock 13,884 $337.74 Direct F4, F9
holding AJG Non-qualified Stock Option 12,726 13 Mar 2026 Common Stock 12,726 $243.54 Direct F10
holding AJG Non-qualified Stock Option 12,107 13 Mar 2026 Common Stock 12,107 $177.09 Direct F11
holding AJG Phantom Stock 6,929 13 Mar 2026 Common Stock 6,929 Direct F12, F13
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Performance share units (awarded on March 15, 2023) earned and vested as of March 15, 2026.
F2 The reporting person has no voting or invesment power over these shares and disclaims beneficial ownership.
F3 Expiring stock options auto-exercised under the terms of the Long-Term Incentive Plan.
F4 One-third of this stock option becomes exerciseable on each of the 3rd, 4th, and 5th anniversaries of the grant date.
F5 Each notional stock unit represents a right to receive one share of Gallagher common stock.
F6 The notional stock units become payable following the reporting person's separation from service with Gallagher.
F7 Portions of these notional stock units are payable to the reporting person in shares of common stock in July of 2026, 2028 and 2029 and following the reporting person's separation from service.
F8 One-third of this stock option becomes exercisable on each of the 3rd, 4th, and 5th anniversaries of the grant date.
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 One-third of this stock option becomes exercisable on each of the 3rd, 4th, and 5th anniversaries of the grant date.
F12 Each share of phantom stock represents a right to receive one share of Gallagher common stock.
F13 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.