X0202 SCHEDULE 13G/A 0000895345-25-000352 0001353254 XXXXXXXX LIVE 1 Voting Common Stock, $1.00 par value per share 03/31/2026 0001297107 CoastalSouth Bancshares, Inc. 19058X207 400 GALLERIA PKWY, Suite 1900 Atlanta GA 30339 Rule 13d-1(d) EJF Capital LP b DE 0 192676 0 192676 192676 N 1.6 IA Based on 12,035,531 shares of voting common stock, par value $1.00 per share ("Voting Common Stock") outstanding as of May 6, 2026, as reported by CoastalSouth Bancshares, Inc. (the "Issuer") in its Form 10-Q filed with the U.S. Securities and Exchange Commission ("SEC") on May 8, 2026. See Item 4. Emanuel J. Friedman b X1 0 192676 0 192676 192676 N 1.6 IN Based on 12,035,531 shares of Voting Common Stock outstanding as of May 6, 2026, as reported by the Issuer in its Form 10-Q filed with the SEC on May 8, 2026. See Item 4. Neal J. Wilson b X1 0 192676 0 192676 192676 N 1.6 IN Based on 12,035,531 shares of Voting Common Stock outstanding as of May 6, 2026, as reported by the Issuer in its Form 10-Q filed with the SEC on May 8, 2026. See Item 4. EJF Sidecar Fund, Series LLC - Small Financial Equities Series b DE 0 0 0 0 0 N 0 OO EJF Financial Services Fund, LP b DE 0 192676 0 192676 192676 N 1.6 PN Based on 12,035,531 shares of Voting Common Stock outstanding as of May 6, 2026, as reported by the Issuer in its Form 10-Q filed with the SEC on May 8, 2026. See Item 4. EJF Financial Services GP, LLC b DE 0 192676 0 192676 192676 N 1.6 OO Based on 12,035,531 shares of Voting Common Stock outstanding as of May 6, 2026, as reported by the Issuer in its Form 10-Q filed with the SEC on May 8, 2026. See Item 4. CoastalSouth Bancshares, Inc. 400 GALLERIA PKWY, Suite 1900, Atlanta, Georgia, 30339 This Amendment No. 1 to Schedule 13G is being filed on behalf of the following persons (the "Reporting Persons"): (i) EJF Capital LP; (ii) Emanuel J. Friedman; (iii) Neal J. Wilson (iv) EJF Sidecar Fund, Series LLC - Small Financial Equities Series ("Sidecar SFES"); (v) EJF Financial Services Fund, LP (the "Financial Services Fund"); and (vi) EJF Financial Services GP, LLC The address of the principal business office of each Reporting Person is: 2107 Wilson Boulevard Suite 410 Arlington, VA 22201 See Item 4 of the attached cover pages. Y See Item 9 of the attached cover pages. See Item 11 of the attached cover pages. See Item 5 of the attached cover pages. See Item 6 of the attached cover pages. See Item 7 of the attached cover pages. See Item 8 of the attached cover pages. Each of Sidecar SFES and the Financial Services Fund is the beneficial owner of the number of shares of Voting Common Stock shown on Item 9 of their respective cover pages. EJF Financial Services GP, LLC is the general partner of the Financial Services Fund and an investment manager of certain affiliates thereof and may be deemed to share beneficial ownership of the shares of Voting Common Stock of which the Financial Services Fund is the beneficial owner. EJF Capital LP is the managing member of Sidecar SFES (and the investment manager of an affiliate thereof) and the sole member of EJF Financial Services GP, LLC, and may be deemed to share beneficial ownership of the shares of Voting Common Stock of which such entities may share beneficial ownership. Emanuel J. Friedman and Neal J. Wilson, as the members and managers of EJF Capital LP, may be deemed to share beneficial ownership of the shares of Voting Common Stock over which EJF Capital LP may share beneficial ownership. N Y Y Y Y Y Y EJF Capital LP /s/ Thomas Davison 05/28/2026 Emanuel J. Friedman /s/ Emanuel J. Friedman 05/28/2026 Neal J. Wilson /s/ Neal J. Wilson 05/28/2026 EJF Sidecar Fund, Series LLC - Small Financial Equities Series /s/ Thomas Davison 05/28/2026 EJF Financial Services Fund, LP /s/ Thomas Davison 05/28/2026 EJF Financial Services GP, LLC /s/ Thomas Davison 05/28/2026