As of April 28, 2026, PepGen's top three insider holders are Capital Management, L.P. Ra (Director, 18.55Mn shares), Science Enterprises Plc Oxford (Other, 4.96Mn shares), James E Flynn (TenPercentOwner, 953.63K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Capital Management, L.P. Ra | - | 0 | 18,554,273 | 30 Sep, 2025 |
| Science Enterprises Plc Oxford | - | 4,955,388 | 0 | 01 Oct, 2025 |
| James E Flynn | - | 0 | 953,626 | 10 May, 2022 |
| James E Flynn | - | 0 | 953,626 | 10 May, 2022 |
| James E Flynn | - | 0 | 953,626 | 10 May, 2022 |
| James E Flynn | - | 0 | 953,626 | 10 May, 2022 |
| James E Flynn | - | 0 | 953,626 | 10 May, 2022 |
| James E Flynn | - | 0 | 953,626 | 10 May, 2022 |
| James G Mcarthur | President And Ceo | 296,326 | 0 | 06 Mar, 2026 |
| Noel Donnelly | Chief Financial Officer | 111,603 | 0 | 06 Mar, 2026 |
| Paul Streck | Evp, Head Of Rd | 76,226 | 0 | 06 Mar, 2026 |
| Kasra Kasraian | Chief Technical Officer | 51,307 | 0 | 02 Mar, 2026 |
| Mary Beth Delena | General Counsel | 14,968 | 0 | 05 Mar, 2025 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 04 Mar, 2026 | Noel Donnelly | Common Stock | D | 2,032 | $6.23 | 111,655 | D | S |
| 04 Mar, 2026 | James G Mcarthur | Common Stock | D | 5,144 | $6.23 | 296,457 | D | S |
| 04 Mar, 2026 | Paul Streck | Common Stock | D | 1,832 | $6.23 | 76,273 | D | S |
| 04 Mar, 2026 | Noel Donnelly | Common Stock | D | 52 | $6.33 | 111,603 | D | S |
| 04 Mar, 2026 | Paul Streck | Common Stock | D | 47 | $6.29 | 76,226 | D | S |
| 04 Mar, 2026 | James G Mcarthur | Common Stock | D | 131 | $6.33 | 296,326 | D | S |
| 01 Mar, 2026 | Noel Donnelly | Common Stock | A | 76,793 | $0.00 | 113,687 | D | A |
| 01 Mar, 2026 | James G Mcarthur | Common Stock | A | 187,688 | $0.00 | 301,601 | D | A |
| 01 Mar, 2026 | Kasra Kasraian | Common Stock | A | 34,557 | $0.00 | 51,307 | D | A |
| 01 Mar, 2026 | Paul Streck | Common Stock | A | 50,300 | $0.00 | 78,105 | D | A |
| 01 Mar, 2026 | James G Mcarthur | Stock Option (Right to Buy) | A | 731,250 | $0.00 | 731,250 | D | A |
| 01 Mar, 2026 | Kasra Kasraian | Stock Option (Right to Buy) | A | 135,000 | $0.00 | 135,000 | D | A |
| 01 Mar, 2026 | Paul Streck | Stock Option (Right to Buy) | A | 196,500 | $0.00 | 196,500 | D | A |
| 01 Mar, 2026 | Noel Donnelly | Stock Option (Right to Buy) | A | 300,000 | $0.00 | 300,000 | D | A |
| 04 Nov, 2025 | Noel Donnelly | Stock Option (Right to Buy) | D | 203,339 | $0.00 | 0 | D | D |
| 04 Nov, 2025 | Paul Streck | Stock Option (Right to Buy) | D | 202,816 | $0.00 | 40,000 | D | D |
| 04 Nov, 2025 | James G Mcarthur | Stock Option (Right to Buy) | D | 352,705 | $0.00 | 0 | D | D |
| 04 Nov, 2025 | Paul Streck | Stock Option (Right to Buy) | A | 202,816 | $0.00 | 202,816 | D | A |
| 04 Nov, 2025 | Noel Donnelly | Stock Option (Right to Buy) | A | 203,339 | $0.00 | 203,339 | D | A |
| 04 Nov, 2025 | James G Mcarthur | Stock Option (Right to Buy) | A | 352,705 | $0.00 | 352,705 | D | A |