ACIC (ACIC) CFO logs equity award exercises and tax-withheld shares in Form 4

Filing Impact

(Neutral)

Filing Sentiment

(Neutral)

Form Type

Rhea-AI Filing Summary

AMERICAN COASTAL INSURANCE Corp Chief Financial Officer Svetlana Castle reported equity award activity rather than open-market trading. On May 7, 2026, she exercised or converted awards into 8,826 shares of common stock and related stock units, while 3,532 shares were withheld to cover tax obligations. After these transactions, she directly held 16,390 common shares. The filing also notes performance and restricted stock units, plus dividend equivalent units, that vest over three years based on service and, for performance units, the achievement of specified performance factors.

Insider Trade Summary

6,619 shares exercised/converted

Mixed 6 txns

Insider Castle Svetlana

Role Chief Financial Officer

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units	2,069	$0.00	--
Exercise	Performance Stock Units	4,138	$0.00	--
Exercise	Dividend Equivalent Units	137	$11.31	$2K
Exercise	Dividend Equivalent Units	275	$11.31	$3K
Exercise	Common Stock	8,826	$0.00	--
Tax Withholding	Common Stock	3,532	$10.85	$38K

Holdings After Transaction: Restricted Stock Units — 6,349 shares (Direct, null); Performance Stock Units — 12,695 shares (Direct, null); Dividend Equivalent Units — 427 shares (Direct, null); Common Stock — 19,922 shares (Direct, null)

Footnotes (1)

Each stock unit represents a conditional right to receive one share of the company's common stock. The restricted stock units are subject to vesting over three years with one third, rounded down to the nearest whole share of stock, vesting in each period. The performance units are subject to vesting over three years with one third, rounded down to the nearest whole share of stock, vesting in each period. The number of shares of common stock that will be delivered for each performance stock unit depends on the achievement of certain performance factors. Depending on actual performance, the number of shares of common stock delivered upon the vesting date (based on the terms outlined in the respective award agreement) can range from 0% to 150% of the number presented above. The dividend equivalent units will vest proportionately with the underlying restricted stock units to which they relate. The dividend equivalent units will vest proportionately with the underlying performance stock units to which they relate.

Key Figures

Award-related common shares acquired: 8,826 shares Shares withheld for taxes: 3,532 shares Shares held after tax withholding: 16,390 shares +2 more

5 metrics

Award-related common shares acquired 8,826 shares Common Stock transactions on May 7, 2026

Shares withheld for taxes 3,532 shares Tax-withholding disposition at $10.85 per share on May 7, 2026

Shares held after tax withholding 16,390 shares Total common stock directly owned after Form 4 transactions

Derivative exercises (units) 6,619 units ExerciseShares in derivative transactions on May 7, 2026

Tax-withholding transaction value $38,616.20 3,532 shares at $10.85 per share

Key Terms

Restricted Stock Units, Performance Stock Units, Dividend Equivalent Units, tax-withholding disposition, +1 more

5 terms

Restricted Stock Units financial

"The restricted stock units are subject to vesting over three years..."

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

Performance Stock Units financial

"The performance units are subject to vesting over three years..."

Performance stock units are a type of company award that grants employees shares of stock only if certain performance goals are met. They motivate employees to work toward specific company achievements, aligning their interests with those of shareholders. For investors, they can influence a company's future stock supply and reflect management’s confidence in reaching key targets.

Dividend Equivalent Units financial

"The dividend equivalent units will vest proportionately with the underlying..."

Dividend equivalent units are bookkeeping credits that mirror cash dividends paid on actual shares, granted to holders of stock-based awards such as restricted stock units or deferred compensation. They matter to investors because they increase a company’s reported employee compensation cost and can lead to issuance of more shares or cash payouts over time, similar to extra pay linked to ownership that affects shareholder dilution and corporate cash flow.

tax-withholding disposition financial

"Payment of exercise price or tax liability by delivering securities"

A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.

derivative security financial

"Exercise or conversion of derivative security"

A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.

Form 4 Insider Transactions: What Each Field Means →

05/11/2026 - 04:01 PM

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Castle Svetlana

(Last)

(First)

(Middle)

570 CARILLON PARKWAY, SUITE 100

(Street)

SAINT PETERSBURG

FLORIDA

33716

(City)

(State)

(Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
AMERICAN COASTAL INSURANCE Corp [ ACIC ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	Chief Financial Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/07/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	05/07/2026		M		8,826	A	$0.00	19,922	D
Common Stock	05/07/2026		F		3,532	D	$10.85	16,390	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Restricted Stock Units	⁽¹⁾	05/07/2026		M			2,069	⁽²⁾	⁽²⁾	Common Stock	2,069	$0.00	6,349	D
Performance Stock Units	⁽¹⁾	05/07/2026		M			4,138	⁽³⁾	⁽⁴⁾	Common Stock	4,138	$0.00	12,695	D
Dividend Equivalent Units	⁽¹⁾	05/07/2026		M			137	⁽⁵⁾	⁽⁵⁾	Common Stock	137	$11.31	427	D
Dividend Equivalent Units	⁽¹⁾	05/07/2026		M			275	⁽⁶⁾	⁽⁶⁾	Common Stock	275	$11.31	853	D

Explanation of Responses:

1. Each stock unit represents a conditional right to receive one share of the company's common stock.

2. The restricted stock units are subject to vesting over three years with one third, rounded down to the nearest whole share of stock, vesting in each period.

3. The performance units are subject to vesting over three years with one third, rounded down to the nearest whole share of stock, vesting in each period.

4. The number of shares of common stock that will be delivered for each performance stock unit depends on the achievement of certain performance factors. Depending on actual performance, the number of shares of common stock delivered upon the vesting date (based on the terms outlined in the respective award agreement) can range from 0% to 150% of the number presented above.

5. The dividend equivalent units will vest proportionately with the underlying restricted stock units to which they relate.

6. The dividend equivalent units will vest proportionately with the underlying performance stock units to which they relate.

	/s/ Alexander Baty, Attorney-in-Fact for Svetlana Castle	05/11/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR

FAQ

What did ACIC CFO Svetlana Castle report in this Form 4 filing?

ACIC CFO Svetlana Castle reported equity award activity, not market trades. She exercised or converted awards into common stock and related units, with a portion of shares withheld to pay taxes, reflecting routine compensation and vesting rather than discretionary buying or selling.

How many AMERICAN COASTAL INSURANCE (ACIC) shares were involved in the CFO’s transactions?

The CFO’s Form 4 shows 8,826 ACIC common shares from award exercises or conversions and 3,532 shares withheld for taxes. Following these transactions, she directly owned 16,390 common shares, illustrating a net increase in equity from vesting-related activity rather than open-market purchases.

Were Svetlana Castle’s ACIC transactions open-market buys or sells?

The filing indicates no open-market buys or sells by Svetlana Castle. Reported codes include an exercise or conversion of derivative securities and a tax-withholding disposition, meaning shares were issued from equity awards and some were withheld to satisfy tax liabilities, not traded on the market.

What are the performance and restricted stock units reported for ACIC’s CFO?

The Form 4 describes performance stock units and restricted stock units that each convert into one ACIC common share upon vesting. These units generally vest over three years in one-third increments, with performance units delivering between 0% and 150% of the target shares depending on performance factors.

What are dividend equivalent units in the ACIC Form 4 for the CFO?

Dividend equivalent units in the filing represent credits tied to dividends on underlying equity awards. Each unit corresponds to potential ACIC common stock and vests proportionately with the related restricted or performance stock units, aligning additional share delivery with the vesting schedule of the underlying awards.