Exhibit 99.1 PRESS RELEASE Mid Penn Bancorp, Inc. 2407 Park Drive Harrisburg, PA 17110 1-866-642-7736 CONTACTS Rory G. Ritrievi Chair, President & Chief Executive Officer Justin T. Webb Chief Financial Officer MID PENN BANCORP, INC. REPORTS SECOND QUARTER EARNINGS AND DECLARES 59TH CONSECUTIVE QUARTERLY DIVIDEND July 23, 2025 – Harrisburg, PA – Mid Penn Bancorp, Inc. (NASDAQ: MPB) ("Mid Penn"), the parent company of Mid Penn Bank (the "Bank") and MPB Financial Services, LLC, today reported net income availa ...