BLOOM MARK H.

PrivateCIK: 1795399

Location

MCLEAN, VA

BLOOM MARK H. (Vice President) 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

BLOOM MARK H.

Filed: 3/17/2026ACC: 0000354190-26-000077

InsiderBLOOM MARK H.CIK 1795399

→

IssuerARTHUR J. GALLAGHER & CO.CIK 354190

Officer· Vice President

Since May 2022

+2.71K

Net shares

Net buyer

$164.9K

Total sold

0

Open market trades

0B · 0S

4

Total transactions

7.01K acquired · 4.30K disposed

Non-Derivative Transactions4

Common Stock (restricted)

Direct

A · Award

Shares

+3.51K

Price / share

—

Trade value

—

% of position

New position

3/15/2026

0.00→3.51K

Common Stock (restricted)

Direct

M · Option Exercise

Shares

−3.51K

Price / share

—

Trade value

—

% of position

New position

3/15/2026

3.51K→0.00

Common Stock

Direct

M · Option Exercise

Shares

+3.51K

Price / share

—

Trade value

—

% of position

340.4%

3/15/2026

1.03K→4.54K

Common Stock

Direct

F · Tax Withholding

Shares

−793.00

Price / share

$207.93

Trade value

$164.89K

% of position

17.5%

3/15/2026

4.54K→3.74K

Total

Net shares

+2.71K

Net value

-$164.89K

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Stock (restricted) Direct	3/15/2026	A · Award	+3.51K	—	—	New position	0.00	3.51K
Common Stock (restricted) Direct	3/15/2026	M · Option Exercise	−3.51K	—	—	New position	3.51K	0.00
Common Stock Direct	3/15/2026	M · Option Exercise	+3.51K	—	—	340.4%	1.03K	4.54K
Common Stock Direct	3/15/2026	F · Tax Withholding	−793.00	$207.93	$164.89K	17.5%	4.54K	3.74K
Total			+2.71K		-$164.89K

Derivative Transactions0

No derivative transactions reported

Non-Derivative Holdings (Post-Transaction)1

Common Stock

Indirect

Shares owned193.26

Total

193.26 indirect193.26

Security Title	Shares Owned	Ownership Type
Common Stock	193.26	Indirect
Total	193.26	193.26 indirect

Derivative Holdings (Post-Transaction)7

Phantom Stock

Direct

Underlying security

Common Stock

Underlying shares

7.26K

Shares owned

7.26K

Exercise price

Expiration

—

Exercise window

—

Non-qualified Stock Option

Direct

Underlying security

Common Stock

Underlying shares

4.67K

Shares owned

4.67K

Exercise price

177.09

Expiration

—

Exercise window

—

Non-qualified Stock Option

Direct

Underlying security

Common Stock

Underlying shares

13.33K

Shares owned

13.33K

Exercise price

228.20

Expiration

—

Exercise window

—

Non-qualified Stock Option

Direct

Underlying security

Common Stock

Underlying shares

4.90K

Shares owned

4.90K

Exercise price

158.56

Expiration

—

Exercise window

—

Non-qualified Stock Option

Direct

Underlying security

Common Stock

Underlying shares

6.89K

Shares owned

6.89K

Exercise price

337.74

Expiration

—

Exercise window

—

Notional Stock Units

Direct

Underlying security

Common Stock

Underlying shares

962.25

Shares owned

962.25

Exercise price

Expiration

—

Exercise window

—

Non-qualified Stock Option

Direct

Underlying security

Common Stock

Underlying shares

5.78K

Shares owned

5.78K

Exercise price

243.54

Expiration

—

Exercise window

—

Total

Underlying

43.79K

Owned

43.79K

Security	Underlying	Exercise Price	Exercise Window	Expiration	Underlying Shares	Shares Owned
Phantom Stock Direct	Common Stock		—	—	7.26K	7.26K
Non-qualified Stock Option Direct	Common Stock	177.09	—	—	4.67K	4.67K
Non-qualified Stock Option Direct	Common Stock	228.20	—	—	13.33K	13.33K
Non-qualified Stock Option Direct	Common Stock	158.56	—	—	4.90K	4.90K
Non-qualified Stock Option Direct	Common Stock	337.74	—	—	6.89K	6.89K
Notional Stock Units Direct	Common Stock		—	—	962.25	962.25
Non-qualified Stock Option Direct	Common Stock	243.54	—	—	5.78K	5.78K
Total					43.79K	43.79K

BLOOM MARK H. — Insider Transaction (Form 4) Filed Mar 17, 2026 | Finecho