COSO Form 4 reports acquisition/exercise transactions

Richardson James N. Jr. reported acquisition or exercise transactions in a Form 4 filing for COSO.

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Form Type

Rhea-AI Filing Summary

Richardson James N. Jr. reported acquisition or exercise transactions in a Form 4 filing for COSO. The filing lists transactions totaling 868 shares. Following the reported transactions, holdings were 868 shares.

Insider Trade Summary

Grant/Award: 868 shares

Grant/Award 1 txn

Insider Richardson James N. Jr.

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Restricted Stock Units	868	$0.00	$0.00

Holdings After Transaction: Restricted Stock Units — 868 contracts (Direct)

Footnotes (2)

F1. Restricted stock units ("RSU") convert into shares of the issuer's common stock on a one-for-one basis.
F2. RSU 100% vests on 12/31/2026.

FAQ

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What insider transaction did CoastalSouth Bancshares (COSO) report on this Form 4?

CoastalSouth Bancshares (COSO) reported that director Richardson James N. Jr. received a grant of 868 restricted stock units on February 11, 2026. The award is a non-cash equity grant, classified as an acquisition, and increased his directly held derivative securities to 868 units.

How many restricted stock units were granted to the CoastalSouth (COSO) director?

The CoastalSouth (COSO) director was granted 868 restricted stock units. This entire amount is reported as newly acquired derivative securities, bringing his beneficial ownership of these RSUs to 868 units immediately following the reported transaction on February 11, 2026.

When do the CoastalSouth (COSO) restricted stock units granted on this Form 4 vest?

The restricted stock units granted to the CoastalSouth (COSO) director vest 100% on December 31, 2026. Once vested, the RSUs convert into an equal number of CoastalSouth common shares, giving the holder full share ownership after the vesting date is reached.

How do the CoastalSouth (COSO) restricted stock units convert into common stock?

The CoastalSouth (COSO) restricted stock units convert into common stock on a one-for-one basis. This means each of the 868 RSUs will become one share of CoastalSouth common stock upon vesting, provided the standard vesting conditions are satisfied by the holder.

Is the CoastalSouth (COSO) director’s ownership from this grant reported as direct or indirect?

The CoastalSouth (COSO) director’s ownership from this grant is reported as direct. The Form 4 lists 868 derivative securities beneficially owned following the transaction with an ownership code of “D,” indicating the RSUs are directly held by the reporting person.

What does transaction code "A" mean in this CoastalSouth (COSO) Form 4 filing?

In this CoastalSouth (COSO) Form 4, transaction code “A” indicates a grant, award, or other acquisition. Here it reflects the issuance of 868 restricted stock units to the director as compensation, rather than a purchase on the open market for cash consideration.

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Accepted by SEC EDGAR 02/13/2026 - 04:00 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^*

Richardson James N. Jr.

(Last)

(First)

(Middle)

400 GALLERIA PARKWAY

SUITE 1900

(Street)

ATLANTA

30339

(City)

(State)

(Zip)

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

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

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

3. Date of Earliest Transaction (Month/Day/Year)
02/11/2026

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

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

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

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)

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⁾	02/11/2026		A		868		12/31/2026⁽²⁾	12/31/2026⁽²⁾	Common Stock	868	⁽¹⁾	868	D

Explanation of Responses:

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

2. RSU 100% vests on 12/31/2026.

	/s/ Lauren Hemby, Chief Accouting Officer	02/13/2026
	** 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.

Source: View Original Filing on SEC EDGAR