MPB 2025 Special Meeting Proxy Statement

The pro forma combined basic and diluted earnings per share of Mid Penn common stock is based on the pro forma combined net income per common share for William Penn and Mid Penn divided by the pro forma basic or diluted common shares of the combined entities for the periods presented on such statements of income. The pro forma information includes adjustments related to the fair value of assets and liabilities of William Penn and is subject to adjustment as additional information becomes available and as final merger date analyses are performed. The pro forma combined balance sheet and book value per share data includes the impact of merger related expenses on the balance sheet with Mid Penn’s after-tax estimated charges of $9.3 million, illustrated as an adjustment to statements of income, retained earnings and to accrued other liabilities. The pro forma combined book value per share of Mid Penn common stock is based on the pro forma combined common stockholders’ equity of William Penn and Mid Penn divided by total pro forma common shares of the combined entities. The unaudited pro forma data are qualified by the statements set forth under this caption and should not be considered indicative of the market value of Mid Penn common stock or the actual or future results of operations of Mid Penn for any period. Actual results may be materially different than the pro forma information presented. 24

RkJQdWJsaXNoZXIy NTYwMjI1