GALLAGHER J PATRICK JR (CEO) received a stock award from ARTHUR J. GALLAGHER & CO.

Compensation award — not an open‑market transaction. Less informative as a directional signal.

A · 1 award

GALLAGHER J PATRICK JR

Filed: 3/17/2026ACC: 0000354190-26-000081

InsiderGALLAGHER J PATRICK JRCIK 1186006

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IssuerARTHUR J. GALLAGHER & CO.CIK 354190

DirectorOfficer· CEO

Since Mar 2026

+25.88K

Net shares

Net buyer

$3.99M

Total sold

Open market trades

0B · 0S

Total transactions

90.10K acquired · 64.22K disposed

Non-Derivative Transactions4

Common Stock (restricted)

Direct

A · Award

+45.05K

Price / share

—

Trade value

—

% of position

New position

3/15/2026

0.00→45.05K

Common Stock (restricted)

Direct

M · Option Exercise

−45.05K

Price / share

—

Trade value

—

% of position

New position

3/15/2026

45.05K→0.00

Common Stock

Direct

M · Option Exercise

+45.05K

Price / share

—

Trade value

—

% of position

47.4%

3/15/2026

95.10K→140.15K

Common Stock

Direct

F · Tax Withholding

−19.17K

Price / share

$207.93

Trade value

$3.99M

% of position

13.7%

3/15/2026

140.15K→120.98K

Total

Net shares

+25.88K

Net value

-$3.99M

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Stock (restricted) Direct	3/15/2026	A · Award	+45.05K	—	—	New position	0.00	45.05K
Common Stock (restricted) Direct	3/15/2026	M · Option Exercise	−45.05K	—	—	New position	45.05K	0.00
Common Stock Direct	3/15/2026	M · Option Exercise	+45.05K	—	—	47.4%	95.10K	140.15K
Common Stock Direct	3/15/2026	F · Tax Withholding	−19.17K	$207.93	$3.99M	13.7%	140.15K	120.98K
Total			+25.88K		-$3.99M

Derivative Transactions0

No derivative transactions reported

Non-Derivative Holdings (Post-Transaction)6

Common Stock

Indirect

Shares owned5.33K

Common Stock

Indirect

Shares owned66.70K

Common Stock

Indirect

Shares owned255.97K

Common Stock

Indirect

Shares owned270.18K

Common Stock

Indirect

Shares owned491.14

Common Stock

Indirect

Shares owned219.96K

Total

818.62K indirect818.62K

Security Title	Shares Owned	Ownership Type
Common Stock	5.33K	Indirect
Common Stock	66.70K	Indirect
Common Stock	255.97K	Indirect
Common Stock	270.18K	Indirect
Common Stock	491.14	Indirect
Common Stock	219.96K	Indirect
Total	818.62K	818.62K indirect

Derivative Holdings (Post-Transaction)8

Notional Stock Units

Direct

Underlying security

Common Stock

Underlying shares

153.79K

Shares owned

153.79K

Exercise price

Expiration

—

Exercise window

—

Non-qualified Stock Option

Direct

Underlying security

Common Stock

Underlying shares

35.83K

Shares owned

35.83K

Exercise price

158.56

Expiration

—

Exercise window

—

Non-qualified Stock Option

Direct

Underlying security

Common Stock

Underlying shares

48.45K

Shares owned

48.45K

Exercise price

228.20

Expiration

—

Exercise window

—

Non-qualified Stock Option

Direct

Underlying security

Common Stock

Underlying shares

76.97K

Shares owned

76.97K

Exercise price

127.90

Expiration

—

Exercise window

—

Phantom Stock

Direct

Underlying security

Common Stock

Underlying shares

143.99K

Shares owned

143.99K

Exercise price

Expiration

—

Exercise window

—

Non-qualified Stock Option

Direct

Underlying security

Common Stock

Underlying shares

27.21K

Shares owned

27.21K

Exercise price

243.54

Expiration

—

Exercise window

—

Non-qualified Stock Option

Direct

Underlying security

Common Stock

Underlying shares

30.03K

Shares owned

30.03K

Exercise price

177.09

Expiration

—

Exercise window

—

Non-qualified Stock Option

Direct

Underlying security

Common Stock

Underlying shares

22.73K

Shares owned

22.73K

Exercise price

337.74

Expiration

—

Exercise window

—

Total

Underlying

538.99K

Owned

538.99K

Security	Underlying	Exercise Price	Exercise Window	Expiration	Underlying Shares	Shares Owned
Notional Stock Units Direct	Common Stock	0	—	—	153.79K	153.79K
Non-qualified Stock Option Direct	Common Stock	158.56	—	—	35.83K	35.83K
Non-qualified Stock Option Direct	Common Stock	228.20	—	—	48.45K	48.45K
Non-qualified Stock Option Direct	Common Stock	127.90	—	—	76.97K	76.97K
Phantom Stock Direct	Common Stock		—	—	143.99K	143.99K
Non-qualified Stock Option Direct	Common Stock	243.54	—	—	27.21K	27.21K
Non-qualified Stock Option Direct	Common Stock	177.09	—	—	30.03K	30.03K
Non-qualified Stock Option Direct	Common Stock	337.74	—	—	22.73K	22.73K
Total					538.99K	538.99K