0001104659-25-014749 Sample Contracts

Up to 1,897,500 Shares (Subject to increase to up to 2,182,125 shares) MARATHON BANCORP, INC. (a Maryland corporation) Common Stock (par value $0.01 per share) AGENCY AGREEMENT February 11, 2025

Agency Agreement • February 18th, 2025 • Marathon Bancorp, Inc. /MD/ • Savings institutions, not federally chartered • New York

• Contract Type
  Agency Agreement
• Filed
  February 18th, 2025
• Company
  Marathon Bancorp, Inc. /MD/
• Industry
  Savings institutions, not federally chartered
• Jurisdiction
  New York

Marathon Bancorp, Inc., a Maryland corporation (the “Company”), Marathon MHC, a Wisconsin-chartered mutual holding company (“Marathon MHC”) and Marathon Bank, a state chartered stock savings bank (the “Bank”), hereby confirm their agreement with Janney Montgomery Scott LLC (“Janney” or the “Agent”) with respect to the offer and sale by the Company of up to 1,897,500 shares (subject to increase to up to 2,182,125 shares) of the Company’s common stock, par value $0.01 per share (the “Common Stock”). The shares of Common Stock to be sold by the Company in the Offerings (as defined below) are hereinafter called the “Securities”. It is acknowledged that the number of Securities to be sold in the Offerings may be increased or decreased as described in the Prospectus (as defined below). If the number of Securities is increased or decreased in accordance with the Prospectus, the term “Securities” shall mean such greater or lesser number, where applicable.