| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Donnelly Noel | Chief Financial Officer | 321 HARRISON AVE., 8TH FLOOR, C/O PEPGEN INC., BOSTON | /s/ Noel Donnelly | 02 Mar 2026 | 0001922546 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | PEPG | Common Stock | Award | $0 | +76,793 | +208% | $0.000000 | 113,687 | 01 Mar 2026 | Direct | F1, F2 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | PEPG | Stock Option (Right to Buy) | Award | $0 | +300,000 | $0.000000 | 300,000 | 01 Mar 2026 | Common Stock | 300,000 | $6.22 | Direct | F3 |
| Id | Content |
|---|---|
| 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. |