X0508 4 2025-05-30 0001835597 PepGen Inc. PEPG 0001708063 STRECK PAUL C/O PEPGEN INC. 321 HARRISON AVE., 8TH FL BOSTON MA 02118 1 EVP, Head of R&D 0 Common Stock 2025-05-30 4 P 0 8375 1.241 A 27805 D Shares of Common Stock purchased pursuant to the PepGen Inc. 2022 Employee Stock Purchase Plan ("ESPP"), for the purchase period of December 1, 2024 to May 30, 2025. In accordance with the ESPP, these shares were purchased at a price equal to 85% of the closing price of PepGen's Common Stock on May 30, 2025. /s/ Noel Donnelly, as attorney-in-fact 2025-06-02