Christopher E. Mead - 15 Mar 2026 Form 4 Insider Report for Arthur J. Gallagher & Co. (AJG)

Reporting relationship
VICE PRESIDENT
Issuer ticker
AJG
Reported as of
15 Mar 2026
Net transaction value
$0
Source evidence Original filing metadata and source links for verification. 5 source fields
SEC form
4
Accepted by SEC
17 Mar 2026, 21:51:06 UTC
Prior SEC filing
09 Mar 2026
Next SEC filing
20 Aug 2026
Source filing
View source filing
Reporting owner 1 detail
Reporting owner signature
/s/ Monica Norzagaray, by power of attorney

Key filing fact

Christopher E. Mead filed Form 4 for Arthur J. Gallagher & Co. (AJG) on 17 Mar 2026.

Key facts

  • This page summarizes Christopher E. Mead's Form 4 filing for Arthur J. Gallagher & Co. (AJG).
  • 5 reported transactions and 9 derivative rows are listed below.
  • Accepted by SEC: 17 Mar 2026, 21:51.

Change

  • Previous filing in this sequence was filed on 09 Mar 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 0001737644 Primary reporting owner

Mead Christopher E

Relationship
VICE PRESIDENT
Address
2850 GOLF ROAD, ROLLING MEADOWS
Signature
/s/ Monica Norzagaray, by power of attorney
Signature date
17 Mar 2026

Reported non-derivative transactions

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

AJG transaction

Common Stock (restricted)

Award

Transaction value
Shares
+5,258
Change %
Price
$0.000000*
Shares after
5,258
Date
15 Mar 2026
Ownership
Direct
Footnotes
F1
AJG transaction

Common Stock (restricted)

Options Exercise

Transaction value
Shares
-5,258
Change %
-100%
Price
$0.000000*
Shares after
0
Date
15 Mar 2026
Ownership
Direct
AJG transaction

Common Stock

Options Exercise

Transaction value
Shares
+5,258
Change %
+27%
Price
$0.000000*
Shares after
24,564
Date
15 Mar 2026
Ownership
Direct
AJG transaction

Common Stock

Tax liability

Transaction value
Shares
-2,019
Change %
-8.2%
Price
$207.93*
Shares after
22,545
Date
15 Mar 2026
Ownership
Direct
AJG transaction

Common Stock

Tax liability

Transaction value
Shares
-432
Change %
-1.9%
Price
$207.93*
Shares after
22,113
Date
16 Mar 2026
Ownership
Direct
Footnotes
F2
AJG holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
491
Date
15 Mar 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

Phantom Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
21,804
Date
15 Mar 2026
Ownership
Direct
Underlying class
Common Stock
Underlying amount
21,804
Exercise price
Footnotes
F3, F4
AJG holding Derivative

Non-qualified Stock Option

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
12,344
Date
15 Mar 2026
Ownership
Direct
Underlying class
Common Stock
Underlying amount
12,344
Exercise price
$228.20
Footnotes
F5
AJG holding Derivative

Non-qualified Stock Option

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
11,725
Date
15 Mar 2026
Ownership
Direct
Underlying class
Common Stock
Underlying amount
11,725
Exercise price
$127.90
Footnotes
F6
AJG holding Derivative

Non-qualified Stock Option

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
11,090
Date
15 Mar 2026
Ownership
Direct
Underlying class
Common Stock
Underlying amount
11,090
Exercise price
$86.17
Footnotes
F6
AJG holding Derivative

Non-qualified Stock Option

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
8,420
Date
15 Mar 2026
Ownership
Direct
Underlying class
Common Stock
Underlying amount
8,420
Exercise price
$158.56
Footnotes
F6
AJG holding Derivative

Non-qualified Stock Option

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
8,264
Date
15 Mar 2026
Ownership
Direct
Underlying class
Common Stock
Underlying amount
8,264
Exercise price
$337.74
Footnotes
F6, F7
AJG holding Derivative

Non-qualified Stock Option

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
7,368
Date
15 Mar 2026
Ownership
Direct
Underlying class
Common Stock
Underlying amount
7,368
Exercise price
$243.54
Footnotes
F8
AJG holding Derivative

Non-qualified Stock Option

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
7,009
Date
15 Mar 2026
Ownership
Direct
Underlying class
Common Stock
Underlying amount
7,009
Exercise price
$177.09
Footnotes
F9
AJG holding Derivative

Notional Stock Units

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
1,983
Date
15 Mar 2026
Ownership
Direct
Underlying class
Common Stock
Underlying amount
1,983
Exercise price
Footnotes
F10, F11
* 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

Performance share units (awarded on March 15, 2023) earned and vested as of March 15, 2026.

Footnote F2

Shares withheld to cover applicable tax obligations relating to the vesting of restricted stock units.

Footnote F3

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

Footnote F4

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 F5

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

Footnote F6

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

Footnote F7

Closing price of Gallagher common stock on February 28, 2025.

Footnote F8

One-third of this stock option becomes exercisable 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

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

Footnote F11

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

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