CoastalSouth (COSO) chief credit officer exercises RSUs and updates holdings

Rhea-AI Filing Summary

CoastalSouth Bancshares, Inc. chief credit officer Cameron Bradley reported routine equity compensation activity involving restricted stock units and related tax withholding. Restricted stock units converted into 4,000 shares of common stock on a one-for-one basis, increasing his direct share ownership.

To cover tax obligations, 1,169 shares of common stock were disposed of through a tax-withholding transaction at $25.59 per share, a non-market sale mechanism. Following these transactions, Bradley directly holds 8,831 shares of common stock and indirectly holds 7,925 shares through an IRA.

Insider Trade Summary

4,000 shares exercised/converted

Mixed 4 txns

Insider Turner Cameron Bradley

Role CHIEF CREDIT OFFICER

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units	4,000	$0.00	--
Exercise	Common Stock	4,000	$0.00	--
Tax Withholding	Common Stock	1,169	$25.59	$30K
holding	Common Stock	--	--	--

Holdings After Transaction: Restricted Stock Units — 0 shares (Direct, null); Common Stock — 10,000 shares (Direct, null); Common Stock — 7,925 shares (Indirect, By IRA)

Footnotes (1)

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Key Figures

RSUs converted: 4,000 shares Tax-withholding shares: 1,169 shares Tax-withholding price: $25.59 per share +2 more

5 metrics

RSUs converted 4,000 shares Restricted stock units converting into common stock on a one-for-one basis

Tax-withholding shares 1,169 shares Shares used to satisfy tax liability at vesting

Tax-withholding price $25.59 per share Value applied to 1,169 shares for tax-withholding disposition

Direct holdings after transactions 8,831 shares Common stock directly owned by Cameron Bradley following Form 4

Indirect IRA holdings 7,925 shares Common stock held indirectly through an IRA

Key Terms

Restricted stock units, tax-withholding disposition, derivative exercise/conversion

3 terms

Restricted stock units financial

"Restricted stock units ("RSU") convert into shares of the issuer's common stock"

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.

tax-withholding disposition financial

"transaction_action": "tax-withholding disposition""

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 exercise/conversion financial

"transaction_action": "derivative exercise/conversion""

Form 4 Insider Transactions: What Each Field Means →

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^*

Turner Cameron Bradley

(Last) (First) (Middle)

400 GALLERIA PARKWAY

SUITE 1900

(Street)

ATLANTA GEORGIA 30339

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
CoastalSouth Bancshares, Inc. [ COSO ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	CHIEF CREDIT OFFICER

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/27/2026

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)
			Code	V	Amount	(A) or (D)	Price
Common Stock	04/27/2026		M		4,000	A	$0	10,000	D
Common Stock	04/27/2026		F		1,169	D	$25.59	8,831	D
Common Stock								7,925	I	By IRA

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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Units	(1)	04/27/2026		M			4,000	04/27/2026	04/27/2026	Common Stock	4,000	(1)	0	D

Explanation of Responses:

1. Restricted stock units ("RSU") convert into shares of the issuer's common stock on a one-for-one basis.

	/s/ Lauren Hemby, Chief Accouting Officer	04/29/2026
	** 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)

FAQ

What insider transaction did CoastalSouth Bancshares (COSO) report for Cameron Bradley?

CoastalSouth Bancshares reported that chief credit officer Cameron Bradley exercised restricted stock units into 4,000 common shares and had 1,169 shares withheld to satisfy tax obligations. These actions are routine equity compensation events rather than open-market trades.

How many CoastalSouth Bancshares (COSO) shares does Cameron Bradley hold after this Form 4?

After the reported transactions, Cameron Bradley directly holds 8,831 shares of CoastalSouth Bancshares common stock and indirectly holds 7,925 shares through an IRA. These figures reflect his updated equity position from this Form 4 filing.

Was the CoastalSouth Bancshares (COSO) Form 4 a market purchase or sale?

The Form 4 shows no open-market purchases or sales. It records an RSU conversion into 4,000 common shares and a tax-withholding disposition of 1,169 shares at $25.59 per share to satisfy tax liabilities associated with the equity award.

What does the tax-withholding disposition in the CoastalSouth (COSO) Form 4 mean?

The tax-withholding disposition reflects 1,169 shares surrendered at $25.59 per share to cover taxes on vested equity. This method satisfies tax liability using shares rather than cash and is not considered an open-market sale by the insider.

How were restricted stock units treated in the CoastalSouth Bancshares (COSO) filing?

Restricted stock units converted into common stock on a one-for-one basis, resulting in 4,000 new common shares for Cameron Bradley. After the RSU conversion, no restricted stock units remained outstanding from this specific grant, completing that equity award’s transition into shares.