MPB 2025 Special Meeting Proxy Statement

How to Vote Your Shares Mid Penn shareholders of record may vote by one of the following methods: Voting by Proxy. You may vote by completing and returning the enclosed proxy card. Your proxy will be voted in accordance with your instructions. If you do not specify a choice on one of the proposals described in this joint proxy statement, your proxy will be voted in favor of that proposal. Voting by Internet. If you are a registered shareholder, you may vote electronically through the Internet by following the instructions included with your proxy card. If your shares are registered in the name of a broker or other nominee, you may be able to vote via the Internet. If so, the voting form your nominee sends you will provide Internet instructions. Voting by Phone. Use any touch-tone telephone to transmit your voting instructions up until 11:59 p.m. Eastern Time the day before the cut-off date or meeting date. Have your proxy card in hand when you call 1-866-883-0222 and then follow the instructions. Voting Virtually at the Special Meeting. You may virtually attend the Mid Penn special meeting and vote. Information regarding how to virtually attend the special meeting is included in the proxy card. If your shares are registered in the name of a broker or other nominee and you wish to vote at the meeting, you will need to obtain a legal proxy from your bank or brokerage firm. Please consult the voting form sent to you by your bank or broker to determine how to obtain a legal proxy in order to vote at the special meeting. Should you have any questions on the procedure for voting your shares, please contact the Mid Penn Corporate Secretary at 866-642-7736. Mid Penn shareholders whose shares are held in “street name” by their broker, bank or other nominee must follow the instructions provided by their broker, bank or other nominee to vote their shares. Your broker, bank or other nominee may allow you to deliver your voting instructions via telephone or the Internet. How to Change Your Vote If you are a registered shareholder, you may revoke any proxy at any time before it is voted by (1) signing and returning a proxy card with a later date (if you submitted your proxy by Internet or by telephone, you can vote again by Internet or telephone), (2) delivering a written revocation letter to the Secretary of Mid Penn, or (3) virtually attending the special meeting, notifying the Corporate Secretary and voting at the special meeting. The Mid Penn Corporate Secretary’s mailing address is 2407 Park Drive, Harrisburg, Pennsylvania 17110. If your shares are registered in the name of a broker or other nominee, you may revoke your proxy instructions by informing the holder of record in accordance with that entity’s procedures. Solicitation of Proxies Mid Penn will bear the cost of soliciting proxies. In addition to solicitation of proxies by mail, Mid Penn will request that banks, brokers and other record holders send proxies and proxy material to the beneficial owners of Mid Penn common stock and secure their voting instructions. Mid Penn will reimburse the record holders for their reasonable expenses in taking those actions. If necessary, Mid Penn may use several of its regular employees, who will not be specially compensated, to solicit proxies from Mid Penn shareholders, either personally or by telephone, facsimile, letter or other electronic means. Mid Penn and William Penn will share equally the expenses incurred in connection with the copying, printing and distribution of this joint proxy statement/prospectus for their special meetings. Mid Penn Voting Agreements As of the record date, directors and executive officers of Mid Penn and their affiliates had the right to vote 1,532,691 shares of Mid Penn common stock, or 7.9% of the outstanding Mid Penn common stock entitled to be voted at the special meeting. 112

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