AJG
insider transactionsArthur J. Gallagher & Co. — buys & sells by directors, officers and 10% owners A shareholder owning more than 10% of the company. Must report trades, but usually a weaker signal than an officer or director. (SEC Form 4).
Net shares · 365d
-97.2K
4.0K buy · 101.2K sell
Net value · 365d
-$25.5M
$988.5K in · $26.5M out
Sentiment · 365d
Net selling
4% buying · 96% selling
Open-market trades · 365d
20
4.0K buy · 101.2K sell
Net buy / sell volume
Not enough data to chart yet.
Tap or hover the chart for daily net volume. Green = net buying, red = net selling.
All transactions
-
Other·G
President
$0
264 sh
Own -1%
-
Other·G
President
$0
264 sh
Own -0%
-
Other·G
President
$0
528 sh
Own -0%
-
Other·G
President
$0
264 sh
Own -0%
-
Other·G
President
$0
264 sh
Own -0%
-
Other·G
President
$0
176 sh
Own -1%
-
Other·G
Chief Operating Officer
$0
704 sh
Own -5%
-
Other·G
Chief Operating Officer
$0
704 sh
Own -6%
-
Other·I
Chief Operating Officer
$310.4K
1.4K sh · $214.82
-
Other·F
VICE PRESIDENT
$89.8K
432 sh · $207.93
Own -2%
-
Other·F
Jain Vishal KEY
VICE PRESIDENT
$104.2K
501 sh · $207.93
Own -1%
-
Other·F
Chief Operating Officer
$109.2K
525 sh · $207.93
Own -1%
-
Other·F
Vice President
$109.2K
525 sh · $207.93
Own -1%
-
Other·F
VICE PRESIDENT
$419.8K
2.0K sh · $207.93
Own -8%
-
Exercise·M
VICE PRESIDENT
$0
5.3K sh
Own New
-
Grant·A
VICE PRESIDENT
$0
5.3K sh
Own New
-
Exercise·M
VICE PRESIDENT
$0
5.3K sh
Own +27%
-
Exercise·M
HOWELL DOUGLAS K KEY
VP & Chief Financial Officer
$0
9.1K sh
Own +9%
-
Exercise·M
HOWELL DOUGLAS K KEY
VP & Chief Financial Officer
$0
9.1K sh
Own New
-
Grant·A
HOWELL DOUGLAS K KEY
VP & Chief Financial Officer
$0
9.1K sh
Own New
-
Other·F
HOWELL DOUGLAS K KEY
VP & Chief Financial Officer
$803.6K
3.9K sh · $207.93
Own -3%
-
Exercise·M
General Counsel
$0
7.1K sh
Own New
-
Grant·A
General Counsel
$0
7.1K sh
Own New
-
Exercise·M
General Counsel
$0
7.1K sh
Own +9%
-
Other·F
General Counsel
$501.3K
2.4K sh · $207.93
Own -3%
-
Grant·A
Hudson Scott R KEY
Vice President
$0
7.2K sh
Own New
-
Exercise·M
Hudson Scott R KEY
Vice President
$0
7.2K sh
Own New
-
Exercise·M
Hudson Scott R KEY
Vice President
$0
7.2K sh
Own +8%
-
Other·F
Hudson Scott R KEY
Vice President
$588.0K
2.8K sh · $207.93
Own -3%
-
Other·F
President
$845.9K
4.1K sh · $207.93
Own -1%
-
Exercise·M
President
$0
9.6K sh
Own +3%
-
Exercise·M
President
$0
9.6K sh
Own New
-
Grant·A
President
$0
9.6K sh
Own New
-
Exercise·M
Bloom Mark H. KEY
Vice President
$0
3.5K sh
Own New
-
Grant·A
Bloom Mark H. KEY
Vice President
$0
3.5K sh
Own New
-
Exercise·M
Bloom Mark H. KEY
Vice President
$0
3.5K sh
Own +340%
-
Other·F
Bloom Mark H. KEY
Vice President
$164.9K
793 sh · $207.93
Own -17%
-
Grant·A
Jain Vishal KEY
VICE PRESIDENT
$0
6.2K sh
Own New
-
Exercise·M
Jain Vishal KEY
VICE PRESIDENT
$0
6.2K sh
Own +10%
-
Other·F
Jain Vishal KEY
VICE PRESIDENT
$550.0K
2.6K sh · $207.93
Own -4%
-
Exercise·M
CEO
$0
45.0K sh
Own +47%
-
Other·F
CEO
$4.0M
19.2K sh · $207.93
Own -14%
-
Grant·A
CEO
$0
45.0K sh
Own New
-
Exercise·M
CEO
$0
45.0K sh
Own New
-
Exercise·M
Chief Operating Officer
$0
4.6K sh
Own +13%
-
Other·F
Chief Operating Officer
$408.0K
2.0K sh · $207.93
Own -5%
-
Exercise·M
Chief Operating Officer
$0
4.6K sh
Own New
-
Grant·A
Chief Operating Officer
$0
4.6K sh
Own New
-
Other·F
Controller, CAO
$37.6K
181 sh · $207.93
Own -0%
-
Other·F
Chief Human Resources Officer
$454.5K
2.2K sh · $207.93
Own -12%
-
Exercise·M
Chief Human Resources Officer
$0
6.6K sh
Own +55%
-
Exercise·M
Chief Human Resources Officer
$0
6.6K sh
Own New
-
Grant·A
Chief Human Resources Officer
$0
6.6K sh
Own New
-
Other·F
VICE PRESIDENT
$482.6K
2.3K sh · $207.93
Own -5%
-
Grant·A
VICE PRESIDENT
$0
6.9K sh
Own New
-
Exercise·M
VICE PRESIDENT
$0
6.9K sh
Own New
-
Exercise·M
VICE PRESIDENT
$0
6.9K sh
Own +16%
-
Exercise·M
HOWELL DOUGLAS K KEY
VP & Chief Financial Officer
$0
14.1K sh
Own New
-
Other·F
HOWELL DOUGLAS K KEY
VP & Chief Financial Officer
$1.8M
8.6K sh · $207.93
Own -8%
-
Exercise·M
HOWELL DOUGLAS K KEY
VP & Chief Financial Officer
$1.1M
14.1K sh · $79.59
Own +15%
-
Exercise·M
Jain Vishal KEY
VICE PRESIDENT
$0
8.4K sh
Own New
-
Exercise·M
Jain Vishal KEY
VICE PRESIDENT
$672.5K
8.4K sh · $79.59
Own +14%
-
Other·F
Jain Vishal KEY
VICE PRESIDENT
$948.3K
4.3K sh · $219.20
Own -6%
-
Exercise·M
Hudson Scott R KEY
Vice President
$0
3.8K sh
Own New
-
Exercise·M
Hudson Scott R KEY
Vice President
$302.4K
3.8K sh · $79.59
Own +4%
-
Sell·S
Hudson Scott R KEY
Vice President
$864.8K
3.8K sh · $227.57
Own -4%
-
Exercise·M
VICE PRESIDENT
$0
4.0K sh
Own New
-
Exercise·M
VICE PRESIDENT
$318.4K
4.0K sh · $79.59
Own +21%
-
Sell·S
VICE PRESIDENT
$908.5K
4.0K sh · $227.12
Own -17%
-
Exercise·M
Vice President
$0
6.8K sh
Own New
-
Exercise·M
Vice President
$537.2K
6.8K sh · $79.59
Own +16%
-
Other·F
Vice President
$854.3K
3.7K sh · $228.84
Own -8%
-
Grant·A
Jain Vishal KEY
VICE PRESIDENT
$450.0K
2.0K sh · $227.01
Own +5%
-
Grant·A
Vice President
$300.0K
1.3K sh · $227.01
Own +3%
-
Grant·A
HOWELL DOUGLAS K KEY
VP & Chief Financial Officer
$600.0K
2.6K sh · $227.01
Own +62%
-
Grant·A
Chief Human Resources Officer
$450.0K
2.0K sh · $227.01
Own +2%
-
Grant·A
VICE PRESIDENT
$350.0K
1.5K sh · $227.01
Own +8%
-
Grant·A
Bloom Mark H. KEY
Vice President
$350.0K
1.5K sh · $227.01
Own +27%
-
Grant·A
President
$600.0K
2.6K sh · $227.01
Own +15%
-
Grant·A
Hudson Scott R KEY
Vice President
$500.0K
2.2K sh · $227.01
Own +141%
-
Grant·A
CEO
$1.8M
7.9K sh · $227.01
Own +6%
-
Grant·A
General Counsel
$450.0K
2.0K sh · $227.01
Own +58%
-
Grant·A
Chief Operating Officer
$350.0K
1.5K sh · $227.01
Own +10%
-
Exercise·M
Chief Operating Officer
$0
5.0K sh
Own New
-
Exercise·M
Chief Operating Officer
$397.9K
5.0K sh · $79.59
Own +16%
-
Other·I
CEO
$20.7M
91.8K sh · $225.23
-
Other·G
CEO
$0
1.4K sh
Own -1%
-
Other·G
CEO
$0
1.4K sh
Own -0%
-
Other·G
CEO
$0
600 sh
Own -0%
-
Other·G
Chief Operating Officer
$0
150 sh
Own -0%
-
Other·G
Chief Operating Officer
$0
150 sh
Own -0%
-
Other·G
Chief Operating Officer
$0
600 sh
Own -3%
-
Exercise·M
CEO
$0
44.0K sh
Own New
-
Sell·S
CEO
$6.3M
27.4K sh · $230.31
Own -22%
-
Exercise·M
CEO
$3.5M
44.0K sh · $79.59
Own +55%
-
Grant·A
Director
$48.8K
214 sh · $228.20
Own +0%
-
Grant·A
President
$5.1M
22.2K sh · $228.20
Own New
-
Grant·A
Director
$40.0K
175 sh · $228.20
Own +2%
-
Grant·A
Jain Vishal KEY
VICE PRESIDENT
$0
14.3K sh
Own New
-
Grant·A
CEO
$0
48.4K sh
Own New
-
Grant·A
Hudson Scott R KEY
Vice President
$0
15.8K sh
Own New
-
Grant·A
VICE PRESIDENT
$0
12.3K sh
Own New
-
Grant·A
General Counsel
$0
17.0K sh
Own New
-
Grant·A
Chief Human Resources Officer
$0
15.0K sh
Own New
-
Grant·A
Chief Operating Officer
$0
17.8K sh
Own New
-
Grant·A
Vice President
$0
13.2K sh
Own New
-
Grant·A
HOWELL DOUGLAS K KEY
VP & Chief Financial Officer
$0
20.7K sh
Own New
-
Grant·A
Bloom Mark H. KEY
Vice President
$0
13.3K sh
Own New
-
Exercise·M
President
$0
28.2K sh
Own New
-
Exercise·M
President
$2.1M
28.2K sh · $75.59
Own +10%
-
Other·F
President
$3.9M
17.6K sh · $221.70
Own -6%
-
Other·I
HOWELL DOUGLAS K KEY
VP & Chief Financial Officer
$2.7M
12.9K sh · $212.58
-
Exercise·M
Jain Vishal KEY
VICE PRESIDENT
$0
955 sh
Own +3%
-
Other·F
Jain Vishal KEY
VICE PRESIDENT
$67.0K
259 sh · $258.79
Own -0%
-
Exercise·M
Jain Vishal KEY
VICE PRESIDENT
$0
955 sh
Own +2%
-
Exercise·M
VICE PRESIDENT
$0
4.0K sh
Own New
-
Exercise·M
VICE PRESIDENT
$318.4K
4.0K sh · $79.59
Own +23%
-
Sell·S
VICE PRESIDENT
$1.0M
4.0K sh · $258.11
Own -19%
-
Other·G
VICE PRESIDENT
$0
388 sh
Own -2%
-
Other·G
HOWELL DOUGLAS K KEY
VP & Chief Financial Officer
$0
196 sh
Own -0%
-
Sell·S
HOWELL DOUGLAS K KEY
VP & Chief Financial Officer
$1.3M
5.0K sh · $258.05
Own -5%
-
Exercise·M
General Counsel
$0
15.8K sh
Own New
-
Other·G
General Counsel
$0
1.7K sh
Own -2%
-
Sell·S
General Counsel
$4.0M
15.8K sh · $255.00
Own -17%
-
Exercise·M
General Counsel
$1.3M
15.8K sh · $79.59
Own +20%
-
Grant·A
Director
$40.0K
163 sh · $246.10
Own +2%
-
Grant·A
Director
$48.7K
198 sh · $246.10
Own +0%
-
Sell·S
VICE PRESIDENT
$313.4K
1.2K sh · $250.74
Own -7%
-
Sell·S
Controller, CAO
$1.6M
6.0K sh · $261.00
Own -11%
-
Buy·P
Vice President
$462.5K
1.9K sh · $246.82
Own +5%
-
Buy·P
Vice President
$132.3K
538 sh · $245.85
Own +1%
-
Buy·P
Vice President
$244.7K
989 sh · $247.42
Own +2%
-
Buy·P
Vice President
$149.0K
599 sh · $248.72
Own +1%
-
Sell·S
HOWELL DOUGLAS K KEY
VP & Chief Financial Officer
$1.8M
5.9K sh · $299.44
Own -5%
-
Sell·S
HOWELL DOUGLAS K KEY
VP & Chief Financial Officer
$629.7K
2.1K sh · $299.84
Own -2%
-
Sell·S
HOWELL DOUGLAS K KEY
VP & Chief Financial Officer
$776.6K
2.6K sh · $298.69
Own -2%
-
Sell·S
HOWELL DOUGLAS K KEY
VP & Chief Financial Officer
$1.0M
3.4K sh · $299.71
Own -3%
-
Other·G
Vice President
$0
338 sh
Own -1%
-
Sell·S
HOWELL DOUGLAS K KEY
VP & Chief Financial Officer
$899.3K
3.0K sh · $299.78
Own -3%
-
Exercise·M
Hudson Scott R KEY
Vice President
$0
7.6K sh
Own New
-
Sell·S
Hudson Scott R KEY
Vice President
$2.3M
7.6K sh · $297.51
Own -8%
-
Exercise·M
Hudson Scott R KEY
Vice President
$604.9K
7.6K sh · $79.59
Own +9%
-
Sell·S
Hudson Scott R KEY
Vice President
$1.6M
5.3K sh · $297.73
Own -6%
-
Grant·A
Director
$40.0K
132 sh · $302.75
Own +1%
-
Grant·A
Director
$48.7K
161 sh · $302.75
Own +0%
-
Other·G
President
$0
30.0K sh
Own -48%
-
Other·G
President
$0
30.0K sh
Own -24%
-
Sell·S
Controller, CAO
$1.2M
4.0K sh · $306.00
Own -7%
-
Other·G
President
$0
875 sh
Own -0%
-
Other·G
President
$0
375 sh
Own -0%
-
Exercise·M
HOWELL DOUGLAS K KEY
VP & Chief Financial Officer
$0
35.7K sh
Own +25%
-
Exercise·M
HOWELL DOUGLAS K KEY
VP & Chief Financial Officer
$0
35.7K sh
Own +44%
-
Exercise·M
President
$0
1.4K sh
Own +16%
-
Exercise·M
President
$0
1.4K sh
Own +0%
-
Other·F
Harries Richard de Winton Wilkin
Director
$17.4K
56 sh · $310.79
Own -4%
| Date▾ | Insider | Type | Shares | Value |
|---|---|---|---|---|
| Mar 23, 2026 | GALLAGHER THOMAS JOSEPH KEY | Other G | 264 | $0 |
| Mar 23, 2026 | GALLAGHER THOMAS JOSEPH KEY | Other G | 264 | $0 |
| Mar 23, 2026 | GALLAGHER THOMAS JOSEPH KEY | Other G | 528 | $0 |
| Mar 23, 2026 | GALLAGHER THOMAS JOSEPH KEY | Other G | 264 | $0 |
| Mar 23, 2026 | GALLAGHER THOMAS JOSEPH KEY | Other G | 264 | $0 |
| Mar 23, 2026 | GALLAGHER THOMAS JOSEPH KEY | Other G | 176 | $0 |
| Mar 23, 2026 | Gallagher Patrick Murphy | Other G | 704 | $0 |
| Mar 23, 2026 | Gallagher Patrick Murphy | Other G | 704 | $0 |
| Mar 20, 2026 | Gallagher Patrick Murphy | Other I | 1.4K | $310.4K |
| Mar 16, 2026 | Mead Christopher E KEY | Other F | 432 | $89.8K |
| Mar 16, 2026 | Jain Vishal KEY | Other F | 501 | $104.2K |
| Mar 16, 2026 | Gallagher Patrick Murphy | Other F | 525 | $109.2K |
| Mar 16, 2026 | Pesch Michael Robert KEY | Other F | 525 | $109.2K |
| Mar 15, 2026 | Mead Christopher E KEY | Other F | 2.0K | $419.8K |
| Mar 15, 2026 | Mead Christopher E KEY | Exercise M | 5.3K | $0 |
| Mar 15, 2026 | Mead Christopher E KEY | Grant A | 5.3K | $0 |
| Mar 15, 2026 | Mead Christopher E KEY | Exercise M | 5.3K | $0 |
| Mar 15, 2026 | HOWELL DOUGLAS K KEY | Exercise M | 9.1K | $0 |
| Mar 15, 2026 | HOWELL DOUGLAS K KEY | Exercise M | 9.1K | $0 |
| Mar 15, 2026 | HOWELL DOUGLAS K KEY | Grant A | 9.1K | $0 |
| Mar 15, 2026 | HOWELL DOUGLAS K KEY | Other F | 3.9K | $803.6K |
| Mar 15, 2026 | Bay Walter D. | Exercise M | 7.1K | $0 |
| Mar 15, 2026 | Bay Walter D. | Grant A | 7.1K | $0 |
| Mar 15, 2026 | Bay Walter D. | Exercise M | 7.1K | $0 |
| Mar 15, 2026 | Bay Walter D. | Other F | 2.4K | $501.3K |
| Mar 15, 2026 | Hudson Scott R KEY | Grant A | 7.2K | $0 |
| Mar 15, 2026 | Hudson Scott R KEY | Exercise M | 7.2K | $0 |
| Mar 15, 2026 | Hudson Scott R KEY | Exercise M | 7.2K | $0 |
| Mar 15, 2026 | Hudson Scott R KEY | Other F | 2.8K | $588.0K |
| Mar 15, 2026 | GALLAGHER THOMAS JOSEPH KEY | Other F | 4.1K | $845.9K |
| Mar 15, 2026 | GALLAGHER THOMAS JOSEPH KEY | Exercise M | 9.6K | $0 |
| Mar 15, 2026 | GALLAGHER THOMAS JOSEPH KEY | Exercise M | 9.6K | $0 |
| Mar 15, 2026 | GALLAGHER THOMAS JOSEPH KEY | Grant A | 9.6K | $0 |
| Mar 15, 2026 | Bloom Mark H. KEY | Exercise M | 3.5K | $0 |
| Mar 15, 2026 | Bloom Mark H. KEY | Grant A | 3.5K | $0 |
| Mar 15, 2026 | Bloom Mark H. KEY | Exercise M | 3.5K | $0 |
| Mar 15, 2026 | Bloom Mark H. KEY | Other F | 793 | $164.9K |
| Mar 15, 2026 | Jain Vishal KEY | Grant A | 6.2K | $0 |
| Mar 15, 2026 | Jain Vishal KEY | Exercise M | 6.2K | $0 |
| Mar 15, 2026 | Jain Vishal KEY | Other F | 2.6K | $550.0K |
| Mar 15, 2026 | GALLAGHER J PATRICK JR KEY | Exercise M | 45.0K | $0 |
| Mar 15, 2026 | GALLAGHER J PATRICK JR KEY | Other F | 19.2K | $4.0M |
| Mar 15, 2026 | GALLAGHER J PATRICK JR KEY | Grant A | 45.0K | $0 |
| Mar 15, 2026 | GALLAGHER J PATRICK JR KEY | Exercise M | 45.0K | $0 |
| Mar 15, 2026 | Gallagher Patrick Murphy | Exercise M | 4.6K | $0 |
| Mar 15, 2026 | Gallagher Patrick Murphy | Other F | 2.0K | $408.0K |
| Mar 15, 2026 | Gallagher Patrick Murphy | Exercise M | 4.6K | $0 |
| Mar 15, 2026 | Gallagher Patrick Murphy | Grant A | 4.6K | $0 |
| Mar 15, 2026 | CARY RICHARD C | Other F | 181 | $37.6K |
| Mar 15, 2026 | Pietrucha Susan E | Other F | 2.2K | $454.5K |
| Mar 15, 2026 | Pietrucha Susan E | Exercise M | 6.6K | $0 |
| Mar 15, 2026 | Pietrucha Susan E | Exercise M | 6.6K | $0 |
| Mar 15, 2026 | Pietrucha Susan E | Grant A | 6.6K | $0 |
| Mar 15, 2026 | Ziebell William F KEY | Other F | 2.3K | $482.6K |
| Mar 15, 2026 | Ziebell William F KEY | Grant A | 6.9K | $0 |
| Mar 15, 2026 | Ziebell William F KEY | Exercise M | 6.9K | $0 |
| Mar 15, 2026 | Ziebell William F KEY | Exercise M | 6.9K | $0 |
| Mar 13, 2026 | HOWELL DOUGLAS K KEY | Exercise M | 14.1K | $0 |
| Mar 13, 2026 | HOWELL DOUGLAS K KEY | Other F | 8.6K | $1.8M |
| Mar 13, 2026 | HOWELL DOUGLAS K KEY | Exercise M | 14.1K | $1.1M |
| Mar 9, 2026 | Jain Vishal KEY | Exercise M | 8.4K | $0 |
| Mar 9, 2026 | Jain Vishal KEY | Exercise M | 8.4K | $672.5K |
| Mar 9, 2026 | Jain Vishal KEY | Other F | 4.3K | $948.3K |
| Mar 6, 2026 | Hudson Scott R KEY | Exercise M | 3.8K | $0 |
| Mar 6, 2026 | Hudson Scott R KEY | Exercise M | 3.8K | $302.4K |
| Mar 6, 2026 | Hudson Scott R KEY | Sell S | 3.8K | $864.8K |
| Mar 5, 2026 | Mead Christopher E KEY | Exercise M | 4.0K | $0 |
| Mar 5, 2026 | Mead Christopher E KEY | Exercise M | 4.0K | $318.4K |
| Mar 5, 2026 | Mead Christopher E KEY | Sell S | 4.0K | $908.5K |
| Mar 5, 2026 | Pesch Michael Robert KEY | Exercise M | 6.8K | $0 |
| Mar 5, 2026 | Pesch Michael Robert KEY | Exercise M | 6.8K | $537.2K |
| Mar 5, 2026 | Pesch Michael Robert KEY | Other F | 3.7K | $854.3K |
| Mar 4, 2026 | Jain Vishal KEY | Grant A | 2.0K | $450.0K |
| Mar 4, 2026 | Pesch Michael Robert KEY | Grant A | 1.3K | $300.0K |
| Mar 4, 2026 | HOWELL DOUGLAS K KEY | Grant A | 2.6K | $600.0K |
| Mar 4, 2026 | Pietrucha Susan E | Grant A | 2.0K | $450.0K |
| Mar 4, 2026 | Mead Christopher E KEY | Grant A | 1.5K | $350.0K |
| Mar 4, 2026 | Bloom Mark H. KEY | Grant A | 1.5K | $350.0K |
| Mar 4, 2026 | GALLAGHER THOMAS JOSEPH KEY | Grant A | 2.6K | $600.0K |
| Mar 4, 2026 | Hudson Scott R KEY | Grant A | 2.2K | $500.0K |
| Mar 4, 2026 | GALLAGHER J PATRICK JR KEY | Grant A | 7.9K | $1.8M |
| Mar 4, 2026 | Bay Walter D. | Grant A | 2.0K | $450.0K |
| Mar 4, 2026 | Gallagher Patrick Murphy | Grant A | 1.5K | $350.0K |
| Mar 3, 2026 | Gallagher Patrick Murphy | Exercise M | 5.0K | $0 |
| Mar 3, 2026 | Gallagher Patrick Murphy | Exercise M | 5.0K | $397.9K |
| Mar 3, 2026 | GALLAGHER J PATRICK JR KEY | Other I | 91.8K | $20.7M |
| Mar 3, 2026 | GALLAGHER J PATRICK JR KEY | Other G | 1.4K | $0 |
| Mar 3, 2026 | GALLAGHER J PATRICK JR KEY | Other G | 1.4K | $0 |
| Mar 3, 2026 | GALLAGHER J PATRICK JR KEY | Other G | 600 | $0 |
| Mar 3, 2026 | Gallagher Patrick Murphy | Other G | 150 | $0 |
| Mar 3, 2026 | Gallagher Patrick Murphy | Other G | 150 | $0 |
| Mar 3, 2026 | Gallagher Patrick Murphy | Other G | 600 | $0 |
| Mar 2, 2026 | GALLAGHER J PATRICK JR KEY | Exercise M | 44.0K | $0 |
| Mar 2, 2026 | GALLAGHER J PATRICK JR KEY | Sell S | 27.4K | $6.3M |
| Mar 2, 2026 | GALLAGHER J PATRICK JR KEY | Exercise M | 44.0K | $3.5M |
| Mar 1, 2026 | JOHNSON DAVID S | Grant A | 214 | $48.8K |
| Mar 1, 2026 | GALLAGHER THOMAS JOSEPH KEY | Grant A | 22.2K | $5.1M |
| Mar 1, 2026 | Miskel Christopher C. | Grant A | 175 | $40.0K |
| Mar 1, 2026 | Jain Vishal KEY | Grant A | 14.3K | $0 |
| Mar 1, 2026 | GALLAGHER J PATRICK JR KEY | Grant A | 48.4K | $0 |
| Mar 1, 2026 | Hudson Scott R KEY | Grant A | 15.8K | $0 |
| Mar 1, 2026 | Mead Christopher E KEY | Grant A | 12.3K | $0 |
| Mar 1, 2026 | Bay Walter D. | Grant A | 17.0K | $0 |
| Mar 1, 2026 | Pietrucha Susan E | Grant A | 15.0K | $0 |
| Mar 1, 2026 | Gallagher Patrick Murphy | Grant A | 17.8K | $0 |
| Mar 1, 2026 | Pesch Michael Robert KEY | Grant A | 13.2K | $0 |
| Mar 1, 2026 | HOWELL DOUGLAS K KEY | Grant A | 20.7K | $0 |
| Mar 1, 2026 | Bloom Mark H. KEY | Grant A | 13.3K | $0 |
| Feb 26, 2026 | GALLAGHER THOMAS JOSEPH KEY | Exercise M | 28.2K | $0 |
| Feb 26, 2026 | GALLAGHER THOMAS JOSEPH KEY | Exercise M | 28.2K | $2.1M |
| Feb 26, 2026 | GALLAGHER THOMAS JOSEPH KEY | Other F | 17.6K | $3.9M |
| Feb 10, 2026 | HOWELL DOUGLAS K KEY | Other I | 12.9K | $2.7M |
| Jan 1, 2026 | Jain Vishal KEY | Exercise M | 955 | $0 |
| Jan 1, 2026 | Jain Vishal KEY | Other F | 259 | $67.0K |
| Jan 1, 2026 | Jain Vishal KEY | Exercise M | 955 | $0 |
| Dec 23, 2025 | Mead Christopher E KEY | Exercise M | 4.0K | $0 |
| Dec 23, 2025 | Mead Christopher E KEY | Exercise M | 4.0K | $318.4K |
| Dec 23, 2025 | Mead Christopher E KEY | Sell S | 4.0K | $1.0M |
| Dec 23, 2025 | Mead Christopher E KEY | Other G | 388 | $0 |
| Dec 22, 2025 | HOWELL DOUGLAS K KEY | Other G | 196 | $0 |
| Dec 22, 2025 | HOWELL DOUGLAS K KEY | Sell S | 5.0K | $1.3M |
| Dec 19, 2025 | Bay Walter D. | Exercise M | 15.8K | $0 |
| Dec 19, 2025 | Bay Walter D. | Other G | 1.7K | $0 |
| Dec 19, 2025 | Bay Walter D. | Sell S | 15.8K | $4.0M |
| Dec 19, 2025 | Bay Walter D. | Exercise M | 15.8K | $1.3M |
| Dec 1, 2025 | Miskel Christopher C. | Grant A | 163 | $40.0K |
| Dec 1, 2025 | JOHNSON DAVID S | Grant A | 198 | $48.7K |
| Nov 21, 2025 | Mead Christopher E KEY | Sell S | 1.2K | $313.4K |
| Nov 18, 2025 | CARY RICHARD C | Sell S | 6.0K | $1.6M |
| Nov 3, 2025 | Pesch Michael Robert KEY | Buy P | 1.9K | $462.5K |
| Nov 3, 2025 | Pesch Michael Robert KEY | Buy P | 538 | $132.3K |
| Nov 3, 2025 | Pesch Michael Robert KEY | Buy P | 989 | $244.7K |
| Nov 3, 2025 | Pesch Michael Robert KEY | Buy P | 599 | $149.0K |
| Sep 22, 2025 | HOWELL DOUGLAS K KEY | Sell S | 5.9K | $1.8M |
| Sep 22, 2025 | HOWELL DOUGLAS K KEY | Sell S | 2.1K | $629.7K |
| Sep 19, 2025 | HOWELL DOUGLAS K KEY | Sell S | 2.6K | $776.6K |
| Sep 19, 2025 | HOWELL DOUGLAS K KEY | Sell S | 3.4K | $1.0M |
| Sep 10, 2025 | Pesch Michael Robert KEY | Other G | 338 | $0 |
| Sep 9, 2025 | HOWELL DOUGLAS K KEY | Sell S | 3.0K | $899.3K |
| Sep 8, 2025 | Hudson Scott R KEY | Exercise M | 7.6K | $0 |
| Sep 8, 2025 | Hudson Scott R KEY | Sell S | 7.6K | $2.3M |
| Sep 8, 2025 | Hudson Scott R KEY | Exercise M | 7.6K | $604.9K |
| Sep 8, 2025 | Hudson Scott R KEY | Sell S | 5.3K | $1.6M |
| Sep 1, 2025 | Miskel Christopher C. | Grant A | 132 | $40.0K |
| Sep 1, 2025 | JOHNSON DAVID S | Grant A | 161 | $48.7K |
| Aug 21, 2025 | GALLAGHER THOMAS JOSEPH KEY | Other G | 30.0K | $0 |
| Aug 21, 2025 | GALLAGHER THOMAS JOSEPH KEY | Other G | 30.0K | $0 |
| Aug 21, 2025 | CARY RICHARD C | Sell S | 4.0K | $1.2M |
| Aug 20, 2025 | GALLAGHER THOMAS JOSEPH KEY | Other G | 875 | $0 |
| Aug 20, 2025 | GALLAGHER THOMAS JOSEPH KEY | Other G | 375 | $0 |
| Jul 31, 2025 | HOWELL DOUGLAS K KEY | Exercise M | 35.7K | $0 |
| Jul 31, 2025 | HOWELL DOUGLAS K KEY | Exercise M | 35.7K | $0 |
| Jul 31, 2025 | GALLAGHER THOMAS JOSEPH KEY | Exercise M | 1.4K | $0 |
| Jul 31, 2025 | GALLAGHER THOMAS JOSEPH KEY | Exercise M | 1.4K | $0 |
| Jul 24, 2025 | Harries Richard de Winton Wilkin | Other F | 56 | $17.4K |
About AJG insider trading
This page tracks insider transactions for Arthur J. Gallagher & Co. (AJG) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.