Arthur J. Gallagher & Co.

Last updated September 27, 2026

Organization details

Legal name
Arthur J. Gallagher & Co.
Former names
Gallagher Arthur J & Co
Ownership
Public
Status
Active
Sector (GICS)
Financials
SIC code
6411 — Insurance Agents, Brokers & Service
Jurisdiction of incorporation
Delaware
Headquarters city
Rolling Meadows
Headquarters state / province
Illinois
Headquarters country
United States
Fiscal year end
December
Ticker symbol
AJG
Primary stock exchange
NYSE

Identifiers

SEC CIK
0000354190
EIN
36-2151613
Wikidata ID
Q4799191

Board of directors

Chief executives

J. Patrick Gallagher Jr. · President & CEO
Dates unknown

Director election results

Annual meeting of May 12, 2026. Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.

Board connections

3 of this board's directors also sit on 4 other boards.

Network of Arthur J. Gallagher & Co.'s board connections American Tower Corporation (REIT) American Tower Corpora... Mid-America Apartment Communities Inc. Mid-America Apartment... NextEra Energy Inc. NextEra Energy Inc. Valmont Industries Inc. Valmont Industries Inc... Deborah H. Caplan Deborah H. Caplan Sherry S. Barrat Sherry S. Barrat Teresa Hillary Clarke Teresa Hillary Clark... Arthur J. Gallagher & Co.
Shared director Other board Same sector

Insider trades

All notable trades →

From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.

Bought, last 12 months
$0
0 purchases by 0 insiders
Sold, last 12 months
$46,150,296
19 sales by 8 insiders
Date Insider Transaction Shares Price Value
Nov 9, 2026 Pietrucha Susan E Officer (Chief Human Resources Officer) Option exercise +15,020 $86.17 $1,294,273
Nov 9, 2026 Pietrucha Susan E Officer (Chief Human Resources Officer) Open-market sale −15,020 $282.30 $4,240,161
Nov 4, 2026 Ziebell William F Officer (VICE PRESIDENT) Option exercise +23,510 $86.17 $2,025,857
Nov 4, 2026 Ziebell William F Officer (VICE PRESIDENT) Open-market sale −23,510 $286.63 $6,738,554
Nov 2, 2026 Mead Christopher E Officer (VICE PRESIDENT) Option exercise +7,590 $86.17 $654,030
Nov 2, 2026 HOWELL DOUGLAS K Officer (VP & Chief Financial Officer) Option exercise +17,130 $86.17 $1,476,092
Nov 2, 2026 Mead Christopher E Officer (VICE PRESIDENT) Open-market sale −7,590 $279.72 $2,123,075
Nov 2, 2026 HOWELL DOUGLAS K Officer (VP & Chief Financial Officer) Open-market sale −17,130 $275.00 $4,710,750
Nov 2, 2026 HOWELL DOUGLAS K Officer (VP & Chief Financial Officer) Open-market sale −13,374 $275.30 $3,681,902
Nov 2, 2026 HOWELL DOUGLAS K Officer (VP & Chief Financial Officer) Open-market sale −492 $275.91 $135,749
Sep 15, 2026 CARY RICHARD C Officer (Controller, CAO) Open-market sale −1,000 $252.86 $252,860
Sep 8, 2026 J. Patrick Gallagher Jr. Director, Officer (CEO) Gift −49,988 — —
Sep 8, 2026 Gallagher Patrick Murphy Officer (Chief Operating Officer) Gift +49,988 — —
Sep 2, 2026 Hudson Scott R Officer (Vice President) Option exercise +12,000 $86.17 $1,034,040
Sep 2, 2026 Hudson Scott R Officer (Vice President) Open-market sale −12,000 $264.13 $3,169,560

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Questions about Arthur J. Gallagher & Co.

Who is the CEO of Arthur J. Gallagher & Co.?

J. Patrick Gallagher Jr. is Arthur J. Gallagher & Co.'s President & CEO.

How many directors are on Arthur J. Gallagher & Co.'s board?

Arthur J. Gallagher & Co.'s board has 12 directors: Christopher C. Miskel, David John Coldman, David S. Johnson, Deborah H. Caplan, J. Patrick Gallagher Jr., Kay W. McCurdy, Norman L. Rosenthal, Ralph J. Nicoletti, Richard De Winton Wilkin Harries, Sherry S. Barrat and 2 others.

Are Arthur J. Gallagher & Co. insiders buying or selling shares?

Over the last 12 months, Arthur J. Gallagher & Co. insiders made no open-market purchases and sold $46.2 million of shares in 19 sales on the open market, as reported to the SEC on Forms 4 and 5.

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