CoastalSouth director buys $9.35K in stock

A CoastalSouth Bancshares director disclosed buying 334 COSO common shares in open-market trades without a Rule 10b5-1 plan.

Rhea-AI Filing Summary

CoastalSouth Bancshares, Inc. (COSO) director James S. Macleod reported open-market purchases of a total of 334 shares of common stock on August 6–7, 2026. He bought 96 shares at $27.61 per share on August 6 and 238 shares at $28.15 per share on August 7. No sales were reported, no Rule 10b5-1 trading plan is indicated, and indirect holdings through an LLC are reported as zero shares as of August 6, 2026.

Insider Trade Summary

Net Buyer: 334 shares

Net Buy 3 txns

Insider MACLEOD JAMES S

Role Director

Bought 334 shs ($9K)

Type	Security	Shares	Price	Value
Purchase	Common Stock	238	$28.15	$7K
Purchase	Common Stock	96	$27.61	$3K
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 201,585 shares (Direct); Common Stock — 0 shares (Indirect, By LLC)

Key Figures

Shares purchased on August 7, 2026: 238 shares of common stock Price per share on August 7, 2026 purchase: $28.15 per share Shares purchased on August 6, 2026: 96 shares of common stock +5 more

8 metrics

Shares purchased on August 7, 2026 238 shares of common stock Open-market or private purchase reported by director James S. Macleod

Price per share on August 7, 2026 purchase $28.15 per share Paid for 238 COSO common shares

Shares purchased on August 6, 2026 96 shares of common stock Open-market or private purchase reported by director James S. Macleod

Price per share on August 6, 2026 purchase $27.61 per share Paid for 96 COSO common shares

Total shares purchased 334 shares of common stock Combined August 6–7, 2026 open-market purchases

Approximate total value of purchases $9,350.26 Sum of August 6–7, 2026 COSO share purchases

Indirect LLC holdings after transactions 0 shares Indirect position “By LLC” as of August 6, 2026

Number of purchase transactions 2 purchases Form 4 period, with no reported sales

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transactions in COSO did director James S. Macleod report?

He reported two open-market purchases of CoastalSouth Bancshares common stock, totaling 334 shares, carried out on August 6 and August 7, 2026. No sales of COSO shares were disclosed in this filing.

How many COSO shares did James S. Macleod buy on August 7, 2026?

On August 7, 2026, James S. Macleod purchased 238 COSO common shares in an open-market or private transaction at a price of $28.15 per share, according to the Form 4.

What COSO share purchase did James S. Macleod report for August 6, 2026?

For August 6, 2026, he reported buying 96 COSO common shares in an open-market or private transaction at a price of $27.61 per share, with the shares held directly in his name.

Were any COSO shares sold by James S. Macleod in this Form 4?

No. The Form 4 shows only purchases totaling 334 shares of COSO common stock and reports no sales or other dispositions of shares during the period covered.

Was a Rule 10b5-1 trading plan used for these COSO insider purchases?

No. The filing indicates that no Rule 10b5-1 trading plan applied to these transactions, meaning the reported COSO share purchases were not disclosed as being made under a pre-arranged trading plan.

What indirect COSO holdings through an LLC does James S. Macleod report?

The Form 4 includes an entry showing zero COSO common shares held indirectly “By LLC” as of August 6, 2026, indicating no indirect holdings through that LLC at that time.

AI-generated analysis. How Rhea-AI works. Not financial advice.

Form 4 Insider Transactions: What Each Field Means →

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Available on EDGAR 09/14/2026 - 04:13 PM Accepted by SEC EDGAR 09/14/2026 - 04:12 PM Learn about SEC filing dates

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^*

MACLEOD JAMES S

(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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/06/2026

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	08/06/2026		P		96	A	$27.61	201,347	D
Common Stock	08/07/2026		P		238	A	$28.15	201,585	D
Common Stock								0	I	By LLC

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

Explanation of Responses:

	/s/ Lauren Hemby, Chief Accouting Officer	09/14/2026
	** 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)