Anthony P. Valduga - 27 Apr 2026 Form 4 Insider Report for CoastalSouth Bancshares, Inc. (COSO)

Reporting relationship: CFO AND COO
Issuer ticker: COSO
Reported as of: 27 Apr 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 29 Apr 2026, 16:15:04 UTC
Prior SEC filing: 13 Feb 2026
Next SEC filing: 06 May 2026
Source filing: View source filing
Reporting owner signature: /s/ Lauren Hemby, Chief Accouting Officer

Key filing fact

Anthony P. Valduga filed Form 4 for CoastalSouth Bancshares, Inc. (COSO) on 29 Apr 2026.

Key facts

This page summarizes Anthony P. Valduga's Form 4 filing for CoastalSouth Bancshares, Inc. (COSO).
3 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 29 Apr 2026, 16:15.

Change

Previous filing in this sequence was filed on 13 Feb 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0002065949 Primary reporting owner

Valduga Anthony P.

Relationship: CFO AND COO
Address: 400 GALLERIA PARKWAY, SUITE 1900, ATLANTA
Signature: /s/ Lauren Hemby, Chief Accouting Officer
Signature date: 29 Apr 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

COSO transaction

Common Stock

Options Exercise

Transaction value
Shares: +13,000
Change %: +16%
Price: $0.000000^*
Shares after: 94,514
Date: 27 Apr 2026
Ownership: Direct

COSO transaction

Common Stock

Tax liability

Transaction value
Shares: -3,841
Change %: -4.1%
Price: $25.59^*
Shares after: 90,673
Date: 27 Apr 2026
Ownership: Direct

COSO holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 27,924
Date: 27 Apr 2026
Ownership: By IRA

COSO holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 2,500
Date: 27 Apr 2026
Ownership: By spouse IRA

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

COSO transaction Derivative

Restricted Stock Units

Options Exercise

Transaction value
Shares: -13,000
Change %: -100%
Price
Shares after: 0
Date: 27 Apr 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 13,000
Exercise price
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

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

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