J. Patrick Gallagher Jr. - 26 May 2026 Form 4 Insider Report for Arthur J. Gallagher & Co. (AJG)

Reporting relationship: CEO, Director
Issuer ticker: AJG
Reported as of: 26 May 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 28 May 2026, 19:50:22 UTC
Prior SEC filing: 01 Apr 2026
Source filing: View source filing
Reporting owner signature: /s/ Monica Norzagaray, by power of attorney

Key filing fact

J. Patrick Gallagher Jr. filed Form 4 for Arthur J. Gallagher & Co. (AJG) on 28 May 2026.

Key facts

This page summarizes J. Patrick Gallagher Jr.'s Form 4 filing for Arthur J. Gallagher & Co. (AJG).
1 reported transaction and 9 derivative rows are listed below.
Accepted by SEC: 28 May 2026, 19:50.

Change

Previous filing in this sequence was filed on 01 Apr 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001186006 Primary reporting owner

GALLAGHER J PATRICK JR

Relationship: CEO, Director
Address: 2850 GOLF ROAD, ROLLING MEADOWS
Signature: /s/ Monica Norzagaray, by power of attorney
Signature date: 27 May 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

AJG transaction

Common Stock

Gift

Transaction value
Shares: -14,698
Change %: -12%
Price: $0.000000^*
Shares after: 109,417
Date: 26 May 2026
Ownership: Direct

AJG holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 270,175
Date: 26 May 2026
Ownership: By Spouse
Footnotes: F1

AJG holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 255,965
Date: 26 May 2026
Ownership: By Corporation

AJG holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 219,955
Date: 26 May 2026
Ownership: By Trust
Footnotes: F2

AJG holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 66,703
Date: 26 May 2026
Ownership: By Irrevocable Trust

AJG holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 5,328
Date: 26 May 2026
Ownership: By Spouse's Trust
Footnotes: F3

AJG holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 491
Date: 26 May 2026
Ownership: Gallagher 401(k) plan account

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

AJG holding Derivative

Notional Stock Units

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 153,788
Date: 26 May 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 153,788
Exercise price: $0.000000
Footnotes: F4, F5

AJG holding Derivative

Phantom Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 139,098
Date: 26 May 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 139,098
Exercise price
Footnotes: F6, F7

AJG holding Derivative

Non-qualified Stock Option

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 76,975
Date: 26 May 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 76,975
Exercise price: $127.90
Footnotes: F8

AJG holding Derivative

Non-qualified Stock Option

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 68,550
Date: 26 May 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 68,550
Exercise price: $86.17
Footnotes: F8

AJG holding Derivative

Non-qualified Stock Option

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 48,449
Date: 26 May 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 48,449
Exercise price: $228.20
Footnotes: F9

AJG holding Derivative

Non-qualified Stock Option

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 35,825
Date: 26 May 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 35,825
Exercise price: $158.56
Footnotes: F8

AJG holding Derivative

Non-qualified Stock Option

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 30,029
Date: 26 May 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 30,029
Exercise price: $177.09
Footnotes: F10

AJG holding Derivative

Non-qualified Stock Option

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 27,210
Date: 26 May 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 27,210
Exercise price: $243.54
Footnotes: F11

AJG holding Derivative

Non-qualified Stock Option

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 22,727
Date: 26 May 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 22,727
Exercise price: $337.74
Footnotes: F8

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 11 footnotes

Footnote F1

Shares held in revocable trust of which my spouse is sole Trustee and as to which I disclaim beneficial ownership.

Footnote F2

Held in trust for benefit of children.

Footnote F3

Shares held in trust for the benefit of my children of which I am sole Trustee.

Footnote F4

Each notional stock unit represents a right to receive one share of Gallagher common stock.

Footnote F5

The notional stock units become payable following the reporting person's separation from service with Gallagher.

Footnote F6

Each share of phantom stock represents a right to receive one share of Gallagher common stock.

Footnote 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.

Footnote F8

One-third of this stock option becomes exerciseable on each of the 3rd, 4th, and 5th anniversaries of the grant date.

Footnote F9

One-third of this stock option becomes exercisable on each of the 3rd, 4th, and 5th anniversaries of the grant date.

Footnote F10

One-third of this stock option becomes exercisable on each of the 3rd, 4th, and 5th anniversaries of the grant date.

Footnote F11

One-third of this stock option becomes exercisable on each of the 3rd, 4th, and 5th anniversaries of the grant date.

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