Marquette Savings Bank

2025 Special Meeting Proxy Voting

This proxy is solicited by the Board of Trustees
. The undersigned depositor of Marquette Savings Bank (the “Bank”) signing on the reverse side of this card hereby appoints the Bank’s Board of Trustees or a Committee of the Board of Trustees, with full powers of substitution, as attorneys-in-fact and agents for and in the name of the undersigned, to vote such votes as the undersigned may be entitled to vote at the Special Meeting of Depositors of the Bank (the “Special Meeting”), to be held at 920 Peach Street, Erie, Pennsylvania on November 13, 2025, at 1:00 p.m. local time, and at any and all adjournments thereof. They are authorized to cast all votes to which the undersigned is entitled as follows: 1. The approval of the Plan of Reorganization of Marquette Savings Bank from a Mutual Savings Bank to a Mutual Holding Company (the “Plan”) pursuant to which the Bank will be reorganized into a mutual holding company structure (the “Reorganization”). As part of the Plan, the Bank will become a Pennsylvania-chartered stock savings bank (the “Stock Bank”), which will be wholly owned by Marquette Mutual Holding Company, a Pennsylvania-chartered mutual holding company, and substantially all of the assets and all of the liabilities, including all of the deposit accounts, of the Bank will become assets and liabilities of the Stock Bank. 2. Such other business as may properly come before the Special Meeting or any adjournment thereof. NOTE: The Board of Trustees is not aware of any other matters that may come before the Special Meeting of Depositors
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