144
0001784277
XXXXXXXX
LIVE
0000354190
Arthur J. Gallagher & Co.
001-09761
2850 GOLF ROAD
ROLLING MEADOWS
IL
60008-4050
630-773-3800
Matrix Trust Co
Trustee for the trust relating to the Plan
Common Stock
Pershing LLC
One Pershing Plaza
Jersey City
NJ
07399
15000
4741950.00
256100000
06/17/2025
Nasdaq Stock Market
Common Stock
01/01/2012
Open Market Purchase
Open Market
N
15000
01/01/2012
Cash at time of purchase
N
Matrix Trust Company
2800 North Central Ave
Suite 900
Phoenix
AZ
85004
Common Stock
03/12/2025
19359
6287142.48
Matrix Trust Company
2800 North Central Ave
Suite 900
Phoenix
AZ
85004
Common Stock
03/14/2025
99
32101.58
Matrix Trust Company
2800 North Central Ave
Suite 900
Phoenix
AZ
85004
Common Stock
03/21/2025
90
30078.73
Matrix Trust Company
2800 North Central Ave
Suite 900
Phoenix
AZ
85004
Common Stock
03/25/2025
147
49334.39
Matrix Trust Company
2800 North Central Ave
Suite 900
Phoenix
AZ
85004
Common Stock
03/26/2025
94
31674.05
Matrix Trust Company
2800 North Central Ave
Suite 900
Phoenix
AZ
85004
Common Stock
03/28/2025
1415
483417.05
Matrix Trust Company
2800 North Central Ave
Suite 900
Phoenix
AZ
85004
Common Stock
04/01/2025
923
317263.37
Matrix Trust Company
2800 North Central Ave
Suite 900
Phoenix
AZ
85004
Common Stock
04/02/2025
1024
349630.05
Matrix Trust Company
2800 North Central Ave
Suite 900
Phoenix
AZ
85004
Common Stock
04/03/2025
147
50936.65
Matrix Trust Company
2800 North Central Ave
Suite 900
Phoenix
AZ
85004
Common Stock
04/08/2025
19686
6155865.46
Matrix Trust Company
2800 North Central Ave
Suite 900
Phoenix
AZ
85004
Common Stock
04/11/2025
1041
346509.49
Matrix Trust Company
2800 North Central Ave
Suite 900
Phoenix
AZ
85004
Common Stock
04/14/2025
266
91253.41
Matrix Trust Company
2800 North Central Ave
Suite 900
Phoenix
AZ
85004
Common Stock
04/25/2025
1
332.11
Matrix Trust Company
2800 North Central Ave
Suite 900
Phoenix
AZ
85004
Common Stock
04/30/2025
2
635.91
Matrix Trust Company
2800 North Central Ave
Suite 900
Phoenix
AZ
85004
Common Stock
05/16/2025
549
187236.07
Matrix Trust Company
2800 North Central Ave
Suite 900
Phoenix
AZ
85004
Common Stock
05/21/2025
391
131869.79
Matrix Trust Company
2800 North Central Ave
Suite 900
Phoenix
AZ
85004
Common Stock
05/22/2025
258
86473.21
Matrix Trust Company
2800 North Central Ave
Suite 900
Phoenix
AZ
85004
Common Stock
06/03/2025
693
239532.33
Matrix Trust Company
2800 North Central Ave
Suite 900
Phoenix
AZ
85004
Common Stock
06/05/2025
122
39938.83
Matrix Trust Company
2800 North Central Ave
Suite 900
Phoenix
AZ
85004
Common Stock
06/06/2025
18
5898.01
Matrix Trust Company
2800 North Central Ave
Suite 900
Phoenix
AZ
85004
Common Stock
06/16/2025
659
209091.41
It is anticipated that sales covered by this form will be made within the period beginning 6/18/2025 and ending 9/18/2025
06/18/2025
Eric Simpson