ADLER BROOKE (Chief Legal Officer) exercised options at AMERICAN COASTAL INSURANCE CORP

Option exercise — a mechanical event triggered by vesting or expiry. Not a discretionary conviction trade.

M · 1 exercise

ADLER BROOKE

Filed: 4/7/2026ACC: 0001857512-26-000006

InsiderADLER BROOKECIK 1857512

→

IssuerAMERICAN COASTAL INSURANCE CORPCIK 1401521

Officer· Chief Legal Officer

Since Apr 2021

-584.00

Net shares

Net seller

$40.7K

Total sold

Open market trades

0B · 0S

Total transactions

12.51K acquired · 13.09K disposed

Non-Derivative Transactions2

Common Stock

Direct

M · Option Exercise

+12.51K

Price / share

—

Trade value

—

% of position

14.5%

4/3/2026

86.49K→99K

Common Stock

Direct

F · Tax Withholding

−3.71K

Price / share

$10.97

Trade value

$40.72K

% of position

3.7%

4/3/2026

99K→95.28K

Total

Net shares

+8.80K

Net value

-$40.72K

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Stock Direct	4/3/2026	M · Option Exercise	+12.51K	—	—	14.5%	86.49K	99K
Common Stock Direct	4/3/2026	F · Tax Withholding	−3.71K	$10.97	$40.72K	3.7%	99K	95.28K
Total			+8.80K		-$40.72K

Derivative Transactions6

Performance Stock Units

Direct

M · Option Exercise

Converts to

Common Stock

5.63K shares

−5.63K

Strike price

Held after

32.01K

Exercisable

—

4/3/2026

Restricted Stock Units

Direct

M · Option Exercise

Converts to

Common Stock

2.81K shares

−2.81K

Strike price

Held after

16K

Exercisable

—

4/3/2026

Dividend Equivalent Units

Direct

M · Option Exercise

Converts to

Common Stock

195.00 shares

−195.00

Strike price

Held after

1.08K

Exercisable

—

4/3/2026

Dividend Equivalent Units

Direct

M · Option Exercise

Converts to

Common Stock

119.00 shares

−119.00

Strike price

Held after

341.00

Exercisable

—

4/3/2026

Dividend Equivalent Units

Direct

M · Option Exercise

Converts to

Common Stock

389.00 shares

−389.00

Strike price

Held after

2.17K

Exercisable

—

4/3/2026

Dividend Equivalent Units

Direct

M · Option Exercise

Converts to

Common Stock

238.00 shares

−238.00

Strike price

Held after

682.00

Exercisable

—

4/3/2026

Security	Converts To	Date	Type	Shares	Exercisable	Held After
Performance Stock Units Direct	Common Stock5.63K shares	4/3/2026	M · Option Exercise	−5.63K	—	32.01K
Restricted Stock Units Direct	Common Stock2.81K shares	4/3/2026	M · Option Exercise	−2.81K	—	16K
Dividend Equivalent Units Direct	Common Stock195.00 shares	4/3/2026	M · Option Exercise	−195.00	—	1.08K
Dividend Equivalent Units Direct	Common Stock119.00 shares	4/3/2026	M · Option Exercise	−119.00	—	341.00
Dividend Equivalent Units Direct	Common Stock389.00 shares	4/3/2026	M · Option Exercise	−389.00	—	2.17K
Dividend Equivalent Units Direct	Common Stock238.00 shares	4/3/2026	M · Option Exercise	−238.00	—	682.00