HUDSON SCOTT R (Vice President) sold 11.7% of their position (12K shares) of ARTHUR J. GALLAGHER & CO. on the open market

Open‑market sale worth $3.17M — a moderate reduction. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale

HUDSON SCOTT R

Filed: 9/4/2026ACC: 0000354190-26-000203

InsiderHUDSON SCOTT RCIK 1482241

→

IssuerARTHUR J. GALLAGHER & CO.CIK 354190

Officer· Vice President

Since Mar 2026

-12K

Net shares

Net seller

$3.17M

Total sold

Open market trades

0B · 1S

Total transactions

12K acquired · 24K disposed

Non-Derivative Transactions2

Common Stock

Direct

M · Option Exercise

+12K

Price / share

$86.17

Trade value

$1.03M

% of position

13.3%

9/2/2026

90.26K→102.26K

Common Stock

Direct

S · Sale

−12K

Price / share

$264.13

Trade value

$3.17M

% of position

11.7%

9/2/2026

102.26K→90.26K

Total

Net shares

+0.00

Net value

-$2.14M

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Stock Direct	9/2/2026	M · Option Exercise	+12K	$86.17	$1.03M	13.3%	90.26K	102.26K
Common Stock Direct	9/2/2026	S · Sale	−12K	$264.13	$3.17M	11.7%	102.26K	90.26K
Total			+0.00		-$2.14M

Derivative Transactions1

Non-qualified Stock Option

Direct

M · Option Exercise

Converts to

Common Stock

12K shares

−12K

Strike price

86.17

Held after

12.37K

Exercisable

—

9/2/2026

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Non-qualified Stock Option Direct	Common Stock12K shares	9/2/2026	M · Option Exercise	−12K	86.17	—	12.37K

Non-Derivative Holdings (Post-Transaction)1

Common Stock

Indirect

Shares owned411.47

Total

411.47 indirect411.47

Security Title	Shares Owned	Ownership Type
Common Stock	411.47	Indirect
Total	411.47	411.47 indirect

Derivative Holdings (Post-Transaction)8

Non-qualified Stock Option

Direct

Underlying security

Common Stock

Underlying shares

11.48K

Shares owned

11.48K

Exercise price

158.56

Expiration

—

Exercise window

—

Non-qualified Stock Option

Direct

Underlying security

Common Stock

Underlying shares

15.80K

Shares owned

15.80K

Exercise price

228.20

Expiration

—

Exercise window

—

Notional Stock Units

Direct

Underlying security

Common Stock

Underlying shares

4.13K

Shares owned

4.13K

Exercise price

Expiration

—

Exercise window

—

Non-qualified Stock Option

Direct

Underlying security

Common Stock

Underlying shares

10.05K

Shares owned

10.05K

Exercise price

243.54

Expiration

—

Exercise window

—

Non-qualified Stock Option

Direct

Underlying security

Common Stock

Underlying shares

9.56K

Shares owned

9.56K

Exercise price

177.09

Expiration

—

Exercise window

—

Non-qualified Stock Option

Direct

Underlying security

Common Stock

Underlying shares

23.02K

Shares owned

23.02K

Exercise price

127.90

Expiration

—

Exercise window

—

Phantom Stock

Direct

Underlying security

Common Stock

Underlying shares

3.72K

Shares owned

3.72K

Exercise price

Expiration

—

Exercise window

—

Non-qualified Stock Option

Direct

Underlying security

Common Stock

Underlying shares

10.58K

Shares owned

10.58K

Exercise price

337.74

Expiration

—

Exercise window

—

Total

Underlying

88.34K

Owned

88.34K

Security	Underlying	Exercise Price	Exercise Window	Expiration	Underlying Shares	Shares Owned
Non-qualified Stock Option Direct	Common Stock	158.56	—	—	11.48K	11.48K
Non-qualified Stock Option Direct	Common Stock	228.20	—	—	15.80K	15.80K
Notional Stock Units Direct	Common Stock		—	—	4.13K	4.13K
Non-qualified Stock Option Direct	Common Stock	243.54	—	—	10.05K	10.05K
Non-qualified Stock Option Direct	Common Stock	177.09	—	—	9.56K	9.56K
Non-qualified Stock Option Direct	Common Stock	127.90	—	—	23.02K	23.02K
Phantom Stock Direct	Common Stock		—	—	3.72K	3.72K
Non-qualified Stock Option Direct	Common Stock	337.74	—	—	10.58K	10.58K
Total					88.34K	88.34K