COSO Form 4 reports acquisition/exercise transactions

ALDRIDGE JOHN G JR reported acquisition or exercise transactions in a Form 4 filing for COSO.

Accepted by SEC EDGAR 02/13/2026 - 04:00 PM EST

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Form Type

Rhea-AI Filing Summary

ALDRIDGE JOHN G JR reported acquisition or exercise transactions in a Form 4 filing for COSO. The filing lists transactions totaling 927 shares. Following the reported transactions, holdings were 927 shares.

Insider Trade Summary

Grant/Award: 927 shares

Grant/Award 1 txn

Insider ALDRIDGE JOHN G JR

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Restricted Stock Units	927	$0.00	$0.00

Holdings After Transaction: Restricted Stock Units — 927 contracts (Direct)

Holdings Before and After: Restricted Stock Units, 0 to 927 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 COSO director John G. Aldridge Jr report?

John G. Aldridge Jr reported an equity compensation grant of 927 restricted stock units. The RSUs were awarded on 02/11/2026 and represent a grant or other acquisition, not an open-market purchase or sale of CoastalSouth Bancshares common stock.

How many restricted stock units were granted to COSO director Aldridge?

Aldridge received 927 restricted stock units. These RSUs are derivative securities that each convert into one share of CoastalSouth Bancshares common stock, bringing his total beneficially owned derivative securities reported in this filing to 927 units held directly.

When do John G. Aldridge Jr’s COSO RSUs vest?

The 927 restricted stock units granted to Aldridge are scheduled to vest 100% on 12/31/2026. Once vested, each RSU converts into one share of CoastalSouth Bancshares common stock, aligning his compensation with the company’s long-term performance.

Are Aldridge’s COSO restricted stock units directly owned?

Yes. The Form 4 shows the 927 restricted stock units as directly owned. The ownership code is reported as “D” for direct, and there is no footnote indicating indirect ownership through another entity, trust, or family vehicle for these derivative securities.

Does Aldridge’s COSO Form 4 involve an open-market stock trade?

No. The transaction code is “A,” described as a grant, award, or other acquisition. The 927 restricted stock units were granted at a price of $0.0000 per unit, indicating equity compensation rather than an open-market buy or sell of existing common shares.

What does one-for-one conversion mean for COSO restricted stock units?

One-for-one conversion means each RSU becomes one share of CoastalSouth Bancshares common stock upon settlement. For Aldridge’s 927 RSUs, full vesting and conversion would result in 927 shares, directly tying his compensation to the company’s future share performance.

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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^*

ALDRIDGE JOHN G 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		927		12/31/2026⁽²⁾	12/31/2026⁽²⁾	Common Stock	927	⁽¹⁾	927	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 Accounting 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