Fifth District Bancorp, Inc. 10-Q

Item 5. Other Information During the six months ended June 30, 2026, none of the Company’s directors or executive officers adopted or terminated any contract , instruction or written plan for the purchase or sale of the Company’s securities that was intended to satisfy the affirmative defense conditions of SEC Rule 10b5-1(c) or any “non-Rule 10b5-1 trading arrangement“ (as such term is defined in Item 408 of SEC Regulation S-K). ​ 47 Table of Contents Item 6. Exhibits ​ ​ 3.1 Articles of Incorporation of Fifth District Bancorp, Inc. (1) ​ ​ 3.2 Bylaws of Fifth District Bancorp, Inc. (2) ​ ​ 31.1 Certification of Chief Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 ​ ​ 31.2 Certification of Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 ​ ​ 32.1 Certification of Chief Executive Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 ​ ​ 32.2 Certification of Chief Financial Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 ​ ​ 101 The following materials for the quarter ended June 30, 2026, formatted in Inline XBRL (Extensible Business Reporting Language): (i) Consolidated Balance Sheets, (ii) Consolidated Statements of Operations, (iii) Consolidated Statements of Comprehensive (Loss) Income, (iv) Consolidated Statements of Stockholders’ Equity, (v) Consolidated Statements of Cash Flows, and (vi) Notes to Consolidated Financial Statements ​ ​ 104 Cover Page Interactive Data File (embedded within the Inline XBRL document and included in Exhibit 101) (1) Incorporated by reference to Exhibit 3.1 to the Company’s Registration Statement on Form S-1, as amended (Commission File No. 333-277776), initially filed on March 8, 2024. (2) Incorporated by reference to Exhibit 3.2 to the Company’s Registration Statement on Form S-1, as amended (Commission File No. 333-277776), initially filed on March 8, 2024. ​ 48 Table of Contents SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. ​ ​ ​ ​ ​ ​ ​ FIFTH DISTRICT BANCORP, INC. ​ ​ ​ ​ ​ ​ Date: August 10, 2026 ​ /s/ Amie L. Lyons ​ ​ Amie L. Lyons ​ ​ President and Chief Executive Officer (Duly Authorized Representative and Principal Executive Officer) ​ ​ ​ ​ ​ Date: August 10, 2026 ​ ​ ​ /s/ Melissa C. Burns ​ ​ Melissa C. Burns ​ ​ Chief Financial Officer and Treasurer (Principal Financial and Accounting Officer ​ ​ ​ 49