EX-32.2 5 mara-20250930xex32d2.htm EX-32.2

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Exhibit 32.2

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CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q of Marathon Bancorp, Inc. (the “Company”) for the quarter ended September 30, 2025 (the “Report”), as filed with the Securities and Exchange Commission on the date hereof, I certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that to the best of my knowledge:

| (1) | The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

| (2) | The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

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Date: November 12, 2025 | By: | /s/ Joy Selting-Buchberger
​ | ​ | Joy Selting-Buchberger
​ | ​ | Senior Vice President and Chief
​ | ​ | Financial Officer (Principal Financial
​ | ​ | and Accounting Officer)

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