Thomas Joseph Gallagher

CIK: 0001589933

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)10 (29.4%)

Derivative conversions

Awards (A)5 (14.7%)

Compensation grants

Other (G, F, J, C, D, …)19 (55.9%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

AJG

Arthur J. Gallagher & Co.

Officer

Discretionary Trading P&L

Holdings

Transaction History (34 total)

AJG
Arthur J. Gallagher & Co.
Jul 1, 2026
Exercise(M)
Direct
352 shares at avg. $229.57$81K
AJG
Arthur J. Gallagher & Co.
Mar 31, 2026
Exercise(M)
Direct
76 shares at avg. $215.95$16K
AJG
Arthur J. Gallagher & Co.
Mar 31, 2026
Tax Payment(F)
Direct
76 shares at avg. $215.95$16K
AJG
Arthur J. Gallagher & Co.
Mar 23, 2026
Gift(G)
Indirect
264 shares-
AJG
Arthur J. Gallagher & Co.
Mar 23, 2026
Gift(G)
Direct
528 shares-
AJG
Arthur J. Gallagher & Co.
Mar 23, 2026
Gift(G)
Direct
264 shares-
AJG
Arthur J. Gallagher & Co.
Mar 23, 2026
Gift(G)
Indirect
264 shares-
AJG
Arthur J. Gallagher & Co.
Mar 23, 2026
Gift(G)
Indirect
176 shares-
AJG
Arthur J. Gallagher & Co.
Mar 23, 2026
Gift(G)
Indirect
264 shares-
AJG
Arthur J. Gallagher & Co.
Mar 15, 2026
Exercise(M)
Direct
9.6K shares-
AJG
Arthur J. Gallagher & Co.
Mar 15, 2026
Tax Payment(F)
Direct
4.1K shares at avg. $207.93$846K
AJG
Arthur J. Gallagher & Co.
Mar 15, 2026
Exercise(M)
Direct
9.6K shares-
AJG
Arthur J. Gallagher & Co.
Mar 15, 2026
Award(A)
Direct
9.6K shares-
AJG
Arthur J. Gallagher & Co.
Mar 4, 2026
Award(A)
Phantom Stock
Direct
2.6K shares at avg. $227.01-
AJG
Arthur J. Gallagher & Co.
Mar 1, 2026
Award(A)
Non-qualified Stock Option
Direct
22.2K shares at avg. $228.20-
AJG
Arthur J. Gallagher & Co.
Feb 26, 2026
Tax Payment(F)
Direct
17.6K shares at avg. $221.69$3.9M
AJG
Arthur J. Gallagher & Co.
Feb 26, 2026
Exercise(M)
Direct
28.2K shares at avg. $75.59$2.1M
AJG
Arthur J. Gallagher & Co.
Aug 21, 2025
Gift(G)
Indirect
30K shares-
AJG
Arthur J. Gallagher & Co.
Aug 21, 2025
Gift(G)
Indirect
30K shares-
AJG
Arthur J. Gallagher & Co.
Aug 20, 2025
Gift(G)
Direct
875 shares-
AJG
Arthur J. Gallagher & Co.
Aug 20, 2025
Gift(G)
Indirect
375 shares-
AJG
Arthur J. Gallagher & Co.
Jul 31, 2025
Exercise(M)
Direct
1.4K shares-
AJG
Arthur J. Gallagher & Co.
May 16, 2025
Gift(G)
Direct
3K shares-
AJG
Arthur J. Gallagher & Co.
Mar 31, 2025
Exercise(M)
Direct
105 shares-
AJG
Arthur J. Gallagher & Co.
Mar 31, 2025
Tax Payment(F)
Direct
105 shares at avg. $345.24$36K

		Type	Shares	Price		Ownership
Jul 1, 2026	AJG Arthur J. Gallagher & Co.	Exercise(M)	352	$229.57	$80,796	Direct
Mar 31, 2026	AJG Arthur J. Gallagher & Co.	Exercise(M)	76	$215.95	$16,495	Direct
Mar 31, 2026	AJG Arthur J. Gallagher & Co.	Tax Payment(F)	76	$215.95	$16,495	Direct
Mar 23, 2026	AJG Arthur J. Gallagher & Co.	Gift(G)	264	-	$0	Indirect
Mar 23, 2026	AJG Arthur J. Gallagher & Co.	Gift(G)	528	-	$0	Direct
Mar 23, 2026	AJG Arthur J. Gallagher & Co.	Gift(G)	264	-	$0	Direct
Mar 23, 2026	AJG Arthur J. Gallagher & Co.	Gift(G)	264	-	$0	Indirect
Mar 23, 2026	AJG Arthur J. Gallagher & Co.	Gift(G)	176	-	$0	Indirect
Mar 23, 2026	AJG Arthur J. Gallagher & Co.	Gift(G)	264	-	$0	Indirect
Mar 15, 2026	AJG Arthur J. Gallagher & Co.	Exercise(M)	9,560	-	$0	Direct
Mar 15, 2026	AJG Arthur J. Gallagher & Co.	Tax Payment(F)	4,068	$207.93	$845,859	Direct
Mar 15, 2026	AJG Arthur J. Gallagher & Co.	Exercise(M)	9,560	-	$0	Direct
Mar 15, 2026	AJG Arthur J. Gallagher & Co.	Award(A)	9,560	-	$0	Direct
Mar 4, 2026	AJG Arthur J. Gallagher & Co.	Award(A) Phantom Stock	2,643	$227.01	-	Direct
Mar 1, 2026	AJG Arthur J. Gallagher & Co.	Award(A) Non-qualified Stock Option	22,219	$228.20	-	Direct
Feb 26, 2026	AJG Arthur J. Gallagher & Co.	Tax Payment(F)	17,555	$221.69	$3,891,856	Direct
Feb 26, 2026	AJG Arthur J. Gallagher & Co.	Exercise(M)	28,200	$75.59	$2,131,638	Direct
Aug 21, 2025	AJG Arthur J. Gallagher & Co.	Gift(G)	30,000	-	-	Indirect
Aug 21, 2025	AJG Arthur J. Gallagher & Co.	Gift(G)	30,000	-	-	Indirect
Aug 20, 2025	AJG Arthur J. Gallagher & Co.	Gift(G)	875	-	-	Direct
Aug 20, 2025	AJG Arthur J. Gallagher & Co.	Gift(G)	375	-	-	Indirect
Jul 31, 2025	AJG Arthur J. Gallagher & Co.	Exercise(M)	1,376	-	-	Direct
May 16, 2025	AJG Arthur J. Gallagher & Co.	Gift(G)	3,000	-	-	Direct
Mar 31, 2025	AJG Arthur J. Gallagher & Co.	Exercise(M)	105	-	-	Direct
Mar 31, 2025	AJG Arthur J. Gallagher & Co.	Tax Payment(F)	105	$345.24	$36,253	Direct

1-25 of 34 transactions

About GALLAGHER THOMAS JOSEPH

GALLAGHER THOMAS JOSEPH (SEC CIK 0001589933) files insider reports with the SEC as President of Arthur J. Gallagher & Co. (AJG).

Signal8 holds 15 ownership filings by GALLAGHER THOMAS JOSEPH, all Form 4s, filed between Dec 20, 2024 and Jul 6, 2026. Those filings report 34 transactions, from Dec 19, 2024 to Jul 1, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on GALLAGHER THOMAS JOSEPH's filings is in ROLLING MEADOWS, IL.

Recent filings by GALLAGHER THOMAS JOSEPH

Jul 1, 2026: Option exercise of AJG shares (Form 4, code M).
Mar 31, 2026: Option exercise of AJG shares (Form 4, code M).
Mar 31, 2026: Tax withholding of AJG shares (Form 4, code F).
Mar 23, 2026: Gifts of AJG shares (6 lines, Form 4, code G).
Mar 15, 2026: Option exercise of AJG shares (Form 4, code M).

Other insiders filing for Arthur J. Gallagher & Co. (AJG)

Koreyva Kyle Graham, Chief Accounting Officer
CARY RICHARD C, Controller, CAO
Gallagher Patrick Murphy, Chief Operating Officer
GALLAGHER J PATRICK JR, CEO
Hudson Scott R, Vice President
Miskel Christopher C., Director

How to read Form 4 transaction codes