PepGen's top three insider shareholders as of August 29, 2026 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).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Capital Management, L.P. Ra | Director, TenPercentOwner | 0 | 18,554,273 | 18,554,273 | 74.0% | 30 Sep, 2025 |
| 2 | Science Enterprises Plc Oxford | Other | 4,955,388 | 0 | 4,955,388 | 19.8% | 01 Oct, 2025 |
| 3 | James E Flynn | TenPercentOwner, Other | 0 | 953,626 | 953,626 | 3.8% | 10 May, 2022 |
| 4 | James G Mcarthur | President And Ceo | 296,326 | 0 | 296,326 | 1.2% | 06 Mar, 2026 |
| 5 | Noel Donnelly | Chief Financial Officer | 111,603 | 0 | 111,603 | 0.4% | 06 Mar, 2026 |
| 6 | Paul Streck | Evp, Head Of Rd | 76,226 | 0 | 76,226 | 0.3% | 06 Mar, 2026 |
| 7 | Joseph Vittiglio | Chief Business Legal Officer | 65,717 | 0 | 65,717 | 0.3% | 02 Mar, 2026 |
| 8 | Kasra Kasraian | Chief Technical Officer | 50,074 | 0 | 50,074 | 0.2% | 26 May, 2026 |
| 9 | Mary Beth Delena | General Counsel | 14,968 | 0 | 14,968 | 0.1% | 05 Mar, 2025 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 18 Jun, 2026 | Laurie Keating | Director | Acquired A | 34,000 | $0.00 | $0 | 34,000 | Direct |
| 18 Jun, 2026 | Lisa Wyman | Director | Acquired A | 34,000 | $0.00 | $0 | 34,000 | Direct |
| 18 Jun, 2026 | Mitchell H. Finer | Director | Acquired A | 34,000 | $0.00 | $0 | 34,000 | Direct |
| 21 May, 2026 | Kasra Kasraian | Chief Technical Officer | Disposed S | 1,233 | $1.41 | $1.74K | 50,074 | Direct |
| 04 Mar, 2026 | Paul Streck | Evp, Head Of Rd | Disposed S | 1,832 | $6.23 | $11.41K | 76,273 | Direct |
| 04 Mar, 2026 | Paul Streck | Evp, Head Of Rd | Disposed S | 1,832 | $6.23 | $11.41K | 76,273 | Direct |
| 04 Mar, 2026 | James G Mcarthur | President And Ceo | Disposed S | 5,144 | $6.23 | $32.05K | 296,457 | Direct |
| 04 Mar, 2026 | Paul Streck | Evp, Head Of Rd | Disposed S | 1,832 | $6.23 | $11.41K | 76,273 | Direct |
| 04 Mar, 2026 | Paul Streck | Evp, Head Of Rd | Disposed S | 1,832 | $6.23 | $11.41K | 76,273 | Direct |
| 04 Mar, 2026 | Noel Donnelly | Chief Financial Officer | Disposed S | 2,032 | $6.23 | $12.66K | 111,655 | Direct |
| 04 Mar, 2026 | Noel Donnelly | Chief Financial Officer | Disposed S | 52 | $6.33 | $329 | 111,603 | Direct |
| 04 Mar, 2026 | Paul Streck | Evp, Head Of Rd | Disposed S | 47 | $6.29 | $296 | 76,226 | Direct |
| 04 Mar, 2026 | Paul Streck | Evp, Head Of Rd | Disposed S | 47 | $6.29 | $296 | 76,226 | Direct |
| 04 Mar, 2026 | Paul Streck | Evp, Head Of Rd | Disposed S | 47 | $6.29 | $296 | 76,226 | Direct |
| 04 Mar, 2026 | Paul Streck | Evp, Head Of Rd | Disposed S | 47 | $6.29 | $296 | 76,226 | Direct |
| 04 Mar, 2026 | James G Mcarthur | President And Ceo | Disposed S | 131 | $6.33 | $829 | 296,326 | Direct |
| 01 Mar, 2026 | Paul Streck | Evp, Head Of Rd | Acquired A | 50,300 | $0.00 | $0 | 78,105 | Direct |
| 01 Mar, 2026 | Paul Streck | Evp, Head Of Rd | Acquired A | 50,300 | $0.00 | $0 | 78,105 | Direct |
| 01 Mar, 2026 | Paul Streck | Evp, Head Of Rd | Acquired A | 50,300 | $0.00 | $0 | 78,105 | Direct |
| 01 Mar, 2026 | Paul Streck | Evp, Head Of Rd | Acquired A | 50,300 | $0.00 | $0 | 78,105 | Direct |