PepGen Inc. — Director's Dealing 2026

Mar 2, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: PepGen Inc. (PEPG)
CIK: 0001835597
Period of Report: 2026-03-01

Reporting Person: Donnelly Noel (Chief Financial Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-03-01	Common Stock	A	76793	—	Acquired	113687	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2026-03-01	Stock Option (Right to Buy)	$6.22	A	300000	Acquired	2036-02-29	Common Stock (300000)	Direct

Footnotes

F1: Consists of 76,793 restricted stock units ("RSUs"), each representing the contingent right to receive one share of Common Stock upon vesting. The RSUs vest in equal annual installments over four years, with the first installment vesting on March 1, 2027, subject to the Reporting Person's continued service to the Issuer on each such vesting date.

F2: Includes 11,938 shares acquired under the PepGen Inc. 2022 Employee Stock Purchase Plan on November 28, 2025 in a transaction that was exempt under Rule 16b-3(c).

F3: This option shall vest and become exercisable as follows: 25% of the shares on the one-year anniversary of the Grant Date, with the remaining 75% vesting and becoming exercisable in 36 equal monthly installments thereafter, subject to the Reporting Person's continued service to the Issuer on each such vesting date.