🕵️ Pepgen Inc. ($PEPG)
SEC insider & ownership activity, last 12 months · CIK 1835597 · every row links its SEC filing
Over the last 12 months insiders sold $59K against $30.6M of open-market buying. RA Capital Management, L.P. bought $30.0M in discretionary trades (Sep). No red-flag 8-Ks in the window.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
2 buyers, $30.6M (2 lots) · 4 sellers, $59K (7 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| RA Capital Management, L.P. | 1 | $30.0M | 0 | – | Sep 26, 2025 |
| Oxford Science Enterprises PLC | 1 | $640K | 0 | – | Sep 30, 2025 |
| James G. McArthur | 0 | – | 2 | $33K | Mar 4, 2026 |
| Donnelly Noel | 0 | – | 2 | $13K | Mar 4, 2026 |
| Streck Paul | 0 | – | 2 | $12K | Mar 4, 2026 |
| Kasraian Kasra | 0 | – | 1 | $2K | May 21, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| RA Capital Management, L.P. | 29.2% | 13D | Sep 26, 2025 | filing ↗ | |
| Peter Kolchinsky | 29.2% | 13D | Sep 26, 2025 | filing ↗ | |
| Rajeev Shah | 29.2% | 13D | Sep 26, 2025 | filing ↗ | |
| RA Capital Healthcare Fund, L.P. | 27.0% | 13D | Sep 26, 2025 | filing ↗ | |
| Oxford Science Enterprises PLC | 7.2% | 13G | Oct 1, 2025 | filing ↗ | |
| Commodore Capital LP | 6.5% | 13G | May 15, 2026 | filing ↗ | |
| Commodore Capital Master LP | 6.5% | 13G | May 15, 2026 | filing ↗ | |
| Robert Egen Atkinson | 6.5% | 13G | May 15, 2026 | filing ↗ | |
| Michael Kramarz | 6.5% | 13G | May 15, 2026 | filing ↗ | |
| Suvretta Capital Management, LLC | 5.1% | 13G | Feb 7, 2025 | filing ↗ | |
| Averill Master Fund, Ltd. | 5.1% | 13G | Feb 7, 2025 | filing ↗ | |
| Aaron Cowen | 5.1% | 13G | Feb 7, 2025 | filing ↗ | |
| David C. Ott | 5.1% | 13G | Oct 3, 2025 | filing ↗ | |
| Viking Global Investors LP | 5.0% | 13G | May 15, 2026 | filing ↗ | |
| Viking Global Opportunities Parent GP LLC | 5.0% | 13G | May 15, 2026 | filing ↗ | |
| Viking Global Opportunities GP LLC | 5.0% | 13G | May 15, 2026 | filing ↗ | |
| Viking Global Opportunities Portfolio GP LLC | 5.0% | 13G | May 15, 2026 | filing ↗ | |
| Viking Global Opportunities Illiquid Investments Sub-Master LP | 5.0% | 13G | May 15, 2026 | filing ↗ | |
| Halvorsen Ole Andreas | 5.0% | 13G | May 15, 2026 | filing ↗ | |
| Shabet Rose Sharon | 5.0% | 13G | May 15, 2026 | filing ↗ |
Planned insider sales (Form 144)
No sale notices filed in the last 12 months.
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Shareholder vote (5.07) | Jun 18, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | May 21, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 21, 2026 | filing ↗ |
| Earnings (2.02) | May 12, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 12, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Mar 30, 2026 | filing ↗ |
| Other events (8.01) | Mar 30, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 30, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Mar 4, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 4, 2026 | filing ↗ |
| Earnings (2.02) | Mar 4, 2026 | filing ↗ |
| Other events (8.01) | Mar 4, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 4, 2026 | filing ↗ |
| Other events (8.01) | Dec 8, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Dec 8, 2025 | filing ↗ |
| Earnings (2.02) | Nov 12, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 12, 2025 | filing ↗ |
| Officer/director changes (5.02) | Nov 4, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Oct 1, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 1, 2025 | filing ↗ |
| Material agreement (1.01) | Sep 24, 2025 | filing ↗ |
| Other events (8.01) | Sep 24, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Sep 24, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Sep 24, 2025 | filing ↗ |
| Other events (8.01) | Sep 24, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Sep 24, 2025 | filing ↗ |
| Earnings (2.02) | Aug 7, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 7, 2025 | filing ↗ |