MPB 2025 Special Meeting Proxy Statement

Unaudited Pro Forma Per Share Data For The Nine Months Ended September 30, 2024 ($ in Thousands, Except Per Share Data) Mid Penn Bancorp, Inc. William Penn Bancorporation Pro Forma Combined Pro Forma Equivalent William Penn Share (A) For The Nine Months Ended September 30, 2024: Earnings per share: Net income per share (Basic) . . . . . . . . . . . . . . . . . . . . $ 2.18 $(0.01) $ 1.99 $ 0.85 Net income per share (Diluted) . . . . . . . . . . . . . . . . . . . $ 2.18 $(0.01) $ 1.98 $ 0.85 Book Value per common share as of September 30, 2024 ........................................ $34.48 $13.91 $32.88 $14.01 Unaudited Pro Forma Per Share Data For The Twelve Months Ended December 31, 2023 ($ in Thousands, Except Per Share Data) Mid Penn Bancorp, Inc. William Penn Bancorporation Pro Forma Combined Pro Forma Equivalent William Penn Share (A) For The Twelve Months Ended December 31, 2023: Earnings per share Net income per share (Basic) . . . . . . . . . . . . . . . . . . . . $ 2.29 $ 0.09 $ 1.50 $ 0.64 Net income per share (Diluted) . . . . . . . . . . . . . . . . . . . $ 2.29 $ 0.09 $ 1.50 $ 0.64 Book Value per common share as of December 31, 2023 ........................................ $31.90 $13.38 $30.50 $12.99 28

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