Marathon Bancorp：2024年度报告

☒ANNUAL REPORT PURSUANT TO SECTION13 OR 15(d)OF THE SECURITIES EXCHANGE ACTOF 1934 For the FiscalYear EndedJune 30, 2025or ☐TRANSITION REPORT PURSUANT TO SECTION13 OR 15(d)OF THE SECURITIES EXCHANGEACT OF 1934 Securities registered pursuant to Section12(b)of the Act: Securities registered pursuant to Section 12(g) of the Act:None Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule405 of the Securities Act. Indicate by check mark if the registrant is not required to file reports pursuant to Section13 or Section15(d)of the Act. Indicate by check mark whether the registrant (1)has filed all reports required to be filed by Section13 or 15(d)of the Securities Exchange Act of1934 during the preceding 12months (or for such shorter period that the registrant was required to file such reports), and (2)has been subject tosuch filing requirements for the past 90days. Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant toRule405 of Regulation S-T (§232.405 of this chapter) during the preceding 12months (or for such shorter period that the registrant was requiredto submit such files). Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company,or an emerging growth company. See definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerginggrowth company” in Rule12b-2 of the Exchange Act. Large accelerated filer☐Accelerated filer☐Non-accelerated filer⌧Smaller reporting company☒Emerging growth company☒ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying withany new or revised financial accounting standards provided pursuant to Section7(a)(2)(B)of the Exchange Act.☐ Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of itsinternal control over financial reporting under Section404(b)of the Sarbanes-Oxley Act (15 U.S.C. 7263(b)) by the registered public accountingfirm that prepared or issued its audit report.☐ If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant includedin the filing reflect the correction of an error to previously issued financial statements.☐ Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensationreceived by any of the registrant’s executive officers during the relevant recovery period pursuant to §240.10D-1(b).☐ The aggregate market value of the voting and non-voting common equity held by non-affiliates of the Registrant, computed by reference to the lastsale price on December31, 2024 was $20,911,632. As of September25, 2025, there were2,938,698shares of the registrant’s common stock issued and outstanding. DOCUMENTS INCORPORATED BY REFERENCE: Proxy Statement for the 2025 Annual Meeting of Stockholders of the Registrant (PartIII). TABLE OF CONTENTS FORM10-K ANNUAL REPORTFOR THEYEAR ENDEDJune 30, 2025MARATHON BANCORP,INC. PARTIItem1. Business5Item1A.Risk Factors36Item1B.Unresolved Staff Comments36Item 1C.Cybersecurity36Item2.Properties37Item3.Legal Proceedings38Item4.Mine Safety Disclosure38 PARTII39Item5.Market for Registrant’s Common Equity, Related Stockholder Matters and IssuerPurchases of Equity Securities39Item6.Reserved40Item7.Management’s Discussion and Analysis of Financial Condition and Results ofOperations40Item7A.Quantitative and Qualitative Disclosures About Market Risk53Item8.Financial Statements and Supplementary Data54Item9.Changes In and Disagreements With Accountants on Accounting and FinancialDisclosure98Item9A Controls and Procedures98Item9B.Other Information99Item9C.Disclosure Regarding Foreign Jurisdictions That Prevent Inspections99 PARTIIIItem10.Directors, Executive Officers and Corporate Governance 99Item11.Executive Compensation100Item12.Security Ownership of Certain Beneficial Owners and Management and RelatedStockholder Matters100Item13.Certain Relationships and Related Transactions, and Director Independence100Item14.Principal Accounting Fees and Services100 PARTIV101Item15.Exhibits and Financial Statement Schedules101Item16.Form10-K Summary102 PARTI CAUTIONARY NOTEREGARDING FORWARD-LOOKING STATEMENTS This Annual Report on Form10-K contains forward-looking statements within the meaningof Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934,which can be identified by the use of words such as “estimate,” “project,” “believe,” “intend,”“anticipate,” “assume,” “plan,” “seek,” “expect,” “will,” “may,” “should,” “indicate,” “would,”“contemplate,” “continue,” “potential,” “target” and words of similar meaning. Thes