PepGen Inc.
PEPG- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001835597
No open-market purchases or sales by PepGen Inc. insiders were filed in the last 90 days; 71 institutions reported holding it in 13F filings for Q2 2026, worth $93.7M in total; Viking Global Investors is the only superinvestor holding it.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by PepGen Inc. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 0 filings
- Open-market sells
- 0 filings
- Insiders trading
- 0
- Net value
- $0
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for PepGen Inc., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| RA Capital Healthcare Fund LP | Director, 10% Owner | 18,554,273Indirect | Jun 22, 2026 | 2 |
| Ra Capital Management, L.P. | Director, 10% Owner | 18,554,273Indirect | Jun 22, 2026 | 2 |
| Kolchinsky Peter | Director, 10% Owner | 18,554,273Indirect | Jun 22, 2026 | 2 |
| Shah Rajeev M. | Director, 10% Owner | 18,554,273Indirect | Jun 22, 2026 | 2 |
| RA Capital Nexus Fund II, L.P. | Director | 18,554,273Indirect | Jun 22, 2026 | 2 |
| Henson Heidi | Director | – | Jun 22, 2026 | 1 |
| Finer Mitchell H. | Director | – | Jun 22, 2026 | 1 |
| Keating Laurie | Director | 4,166 | Jun 22, 2026 | 1 |
| Dable Habib J | Director | – | Jun 22, 2026 | 1 |
| Resnick Joshua | Director | – | Jun 22, 2026 | 1 |
| Mayer Howard | Director | – | Jun 22, 2026 | 1 |
| Wyman Lisa | Director | – | Jun 22, 2026 | 1 |
| Kasraian Kasra | Chief Technical Officer | 50,074 | May 26, 2026 | 2 |
| Streck Paul | EVP, Head of R&D | 76,226 | Mar 6, 2026 | 3 |
| McArthur James G | President and CEO | 296,326 | Mar 6, 2026 | 3 |
| Donnelly Noel | Chief Financial Officer | 111,603 | Mar 6, 2026 | 3 |
| Vittiglio Joseph | Chief Business & Legal Officer | 65,717 | Mar 2, 2026 | 2 |
| Oxford Science Enterprises plc | Other: Former 10% Owner | 4,955,388 | Oct 1, 2025 | 1 |
| DeLena Mary Beth | General Counsel | 14,968 | Mar 5, 2025 | 0 |
| Mellion Michelle L | Chief Medical Officer | 0 | Jul 26, 2024 | 0 |
| Ashton Christopher | Director | – | Jun 21, 2024 | 0 |
| Svenstrup Niels | SVP, Chem. Mfg & Controls | 0 | May 17, 2024 | 0 |
| Goyal Jaya | EVP, Res. & Preclin. Dev. | 0 | Mar 28, 2023 | 0 |
| Deerfield Management Company, L.P. | 10% Owner, Other: Possible Member of 10% Group | 476,813Indirect | May 10, 2022 | 0 |
| Deerfield Mgmt L.P. | 10% Owner, Other: Possible Member of 10% Group | 476,813Indirect | May 10, 2022 | 0 |
| Deerfield Partners, L.P. | 10% Owner, Other: Possible Member of 10% Group | 476,813Indirect | May 10, 2022 | 0 |
| Flynn James E | 10% Owner, Other: Possible Member of 10% Group | 476,813Indirect | May 10, 2022 | 0 |
| Deerfield Private Design Fund V, L.P. | 10% Owner, Other: Possible Member of 10% Group | 476,813Indirect | May 10, 2022 | 0 |
| Deerfield Mgmt V, L.P. | 10% Owner, Other: Possible Member of 10% Group | 476,813Indirect | May 10, 2022 | 0 |
| Bracegirdle Sonia | See Remarks | – | May 10, 2022 | 0 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| May 26, 2026 (view filing) | May 21 | 5 days | Kasraian KasraChief Technical Officer | SSale | −1.23K | $1.41 | −$1.74K | −2.4%50.1K after | |
| Mar 6, 2026 (view filing) | Mar 4 | 2 days | Streck PaulEVP, Head of R&D | SSale | −1.88K | $6.23 | −$11.7K | −2.4%76.2K after | 2 lots |
| Mar 6, 2026 (view filing) | Mar 4 | 2 days | Donnelly NoelChief Financial Officer | SSale | −2.08K | $6.23 | −$13.0K | −1.8%111.6K after | 2 lots |
| Mar 6, 2026 (view filing) | Mar 4 | 2 days | McArthur James GPresident and CEO | SSale | −5.28K | $6.23 | −$32.9K | −1.7%296.3K after | 2 lots |
| Oct 1, 2025 (view filing) | Sep 30 | 1 day | Oxford Science Enterprises plcOther: Former 10% Owner | PPurchase | +200.0K | $3.20 | +$640.0K | +4.2%4.96M after | |
| Sep 30, 2025 (view filing)4:35 PM ET | Sep 26 | 4 days | RA Capital Healthcare Fund LP and 4 othersDirector, 10% Owner | PPurchase | +9.38M | $3.20 | +$30.0M | +102.1%18.6M after | |
| Jun 2, 2025 (view filing) | May 30 | 3 days | Streck PaulEVP, Head of R&D | PPurchase | +8.38K | $1.24 | +$10.4K | +43.1%27.8K after | |
| Apr 22, 2025 (view filing) | Apr 17 | 5 daysLate | McArthur James GPresident and CEO | PPurchase | +10.0K | $1.36 | +$13.6K | +9.6%113.9K after | |
| Apr 9, 2025 (view filing) | Apr 8 | 1 day | McArthur James GPresident and CEO | PPurchase | +41.5K | $1.15 | +$47.7K | +66.5%103.9K after | |
| Feb 26, 2025 (view filing) | Feb 26 | Same day | DeLena Mary BethGeneral Counsel | SSale | −1.43K | $1.68 | −$2.41K | −47.7%1.57K after | |
| Feb 26, 2025 (view filing) | Feb 26 | Same day | Donnelly NoelChief Financial Officer | SSale | −1.53K | $1.68 | −$2.57K | −47.7%1.67K after | |
| Jul 26, 2024 (view filing) | Jul 24-25 | 2 days | Mellion Michelle LChief Medical Officer | SSale | −7.77K | $18.06 | −$140.4K | −100.0%0 after | 2 lots10b5-1 |
| Jul 19, 2024 (view filing) | Jul 18 | 1 day | Mellion Michelle LChief Medical Officer | SSale | −12.6K | $18.20 | −$229.8K | −100.0%0 after | 10b5-1 |
| Jul 16, 2024 (view filing) | Jul 12-16 | 4 days | Mellion Michelle LChief Medical Officer | SSale | −9.19K | $18.01 | −$165.5K | −100.0%0 after | 2 lots10b5-1 |
| Jul 3, 2024 (view filing) | Jul 1-2 | 2 days | Mellion Michelle LChief Medical Officer | SSale | −912 | $18.01 | −$16.4K | −100.0%0 after | 2 lots10b5-1 |
| Jun 26, 2024 (view filing) | Jun 24 | 2 days | Mellion Michelle LChief Medical Officer | SSale | −9.26K | $18.19 | −$168.4K | −100.0%0 after | 10b5-1 |
| Jun 13, 2024 (view filing) | Jun 11-12 | 2 days | Mellion Michelle LChief Medical Officer | SSale | −1.59K | $18.05 | −$28.6K | −100.0%0 after | 2 lots10b5-1 |
| Jun 7, 2024 (view filing) | Jun 5-6 | 2 days | Mellion Michelle LSVP, Clinical Development | SSale | −8.66K | $18.08 | −$156.5K | −100.0%0 after | 2 lots10b5-1 |
| May 17, 2024 (view filing) | May 17 | Same day | Svenstrup NielsSVP, Chem. Mfg & Controls | SSale | −10.0K | $13.41 | −$134.1K | −100.0%0 after | |
| Apr 9, 2024 (view filing) | May 10, 2022 | 700 days | Oxford Science Enterprises plc10% Owner | PPurchase | +880.0K | $12.00 | +$10.6M | +22.7%4.76M after | Amended |
| Feb 13, 2024 (view filing)4:33 PM ET | Feb 9 | 4 days | RA Capital Healthcare Fund LP and 4 othersDirector, 10% Owner | PPurchase | +2.56M | $10.64 | +$27.2M | +38.6%9.18M after | |
| Dec 5, 2023 (view filing) | Nov 30 | 5 daysLate | McArthur James GPresident and CEO | PPurchase | +1.69K | $4.17 | +$7.06K | New position1.69K after | |
| Jun 9, 2023 (view filing) | Jun 8 | 1 day | McArthur James GPresident and CEO | SSale | −2.38K | $16.04 | −$38.2K | −100.0%0 after | 10b5-1 |
| Jun 8, 2023 (view filing) | Jun 6-7 | 2 days | McArthur James GPresident and CEO | SSale | −26.6K | $16.20 | −$430.3K | −100.0%0 after | 2 lots10b5-1 |
| Jun 6, 2023 (view filing) | Jun 2-5 | 4 days | McArthur James GPresident and CEO | SSale | −2.30K | $16.04 | −$36.9K | −100.0%0 after | 2 lots10b5-1 |
| Mar 28, 2023 (view filing) | Mar 24 | 4 days | Goyal JayaEVP, Res. & Preclin. Dev. | SSale | −392 | $20.00 | −$7.84K | −100.0%0 after | |
| Feb 8, 2023 (view filing) | Feb 6-8 | 2 days | Goyal JayaEVP, Res. & Preclin. Dev. | SSale | −6.00K | $17.12 | −$102.7K | −100.0%0 after | 3 lots |
| Jan 19, 2023 (view filing) | May 6, 2022 | 258 daysLate | Keating LaurieDirector | PPurchase | +4.17K | $12.00 | +$50.0K | New position4.17K after | |
| May 12, 2022 (view filing)7:06 PM ET | May 10 | 2 days | RA Capital Healthcare Fund LP and 4 othersDirector, 10% Owner | PPurchase | +3.23M | $12.00 | +$38.8M | New position1.30M after | 2 lots |
| May 10, 2022 (view filing)6:22 PM ET | May 10 | Same day | Deerfield Management Company, L.P. and 5 others10% Owner, Other: Possible Member of 10% Group | PPurchase | +416.7K | $12.00 | +$5.00M | +692.7%476.8K after | 2 lots |