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.
Holders of 5% or more of PEPG
Holders whose latest Schedule 13D or 13G filing reports 5% or more of PepGen Inc., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Ra Capital Management, L.P. | 13D/A | 29.20%20.1M shares | – | Sep 30, 20251 filing | Sep 30, 2025 | SEC |
| Oxford Science Enterprises plc | 13G/A | 7.20%4.96M shares | – | Oct 1, 20251 filing | Oct 1, 2025 | SEC |
| Commodore Capital LP | 13G/A | 6.50%4.47M shares | +1.40 ppfrom 5.10% | Mar 11, 20262 filings | May 15, 2026 | SEC |
| Viking Global Investors LPSuperinvestorViking Global Investors | 13G/A | 5.03%3.48M shares | −0.07 ppfrom 5.10% | Oct 3, 20252 filings | May 15, 2026 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
15 Schedule 13D and 13G filings on PepGen Inc., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| May 15, 20265:48 PM ET | Viking Global Investors LPand 7 othersSuperinvestorViking Global Investors | 13G/A | 5.03%3.48M shares | −0.07 ppfrom 5.10% | Mar 31, 2026 | SEC |
| May 15, 20264:19 PM ET | Commodore Capital LPand 3 others | 13G/A | 6.50%4.47M shares | +1.40 ppfrom 5.10% | Mar 31, 2026 | SEC |
| Mar 11, 20264:06 PM ET | Commodore Capital LPand 3 others | 13G | 5.10%3.54M shares | New | Mar 4, 2026 | SEC |
| Nov 14, 20254:14 PM ET | Point72 Asset Management, L.P.and 2 others | 13G/A | 3.00%2.07M shares | −5.20 ppfrom 8.20%Below 5% | Sep 30, 2025 | SEC |
| Oct 3, 20254:37 PM ET | Viking Global Investors LPand 7 othersSuperinvestorViking Global Investors | 13G | 5.10%3.48M shares | New | Sep 26, 2025 | SEC |
| Oct 1, 20251:28 PM ET | Oxford Science Enterprises plc | 13G/A | 7.20%4.96M shares | – | Sep 30, 2025 | SEC |
| Sep 30, 20254:36 PM ET | Ra Capital Management, L.P.and 3 others | 13D/A | 29.20%20.1M shares | – | Sep 26, 2025 | SEC |
| Aug 13, 20259:02 PM ET | Suvretta Capital Management, LLCand 2 others | 13G/A | 0.90%300.0K shares | −4.20 ppfrom 5.10%Below 5% | Jun 30, 2025 | SEC |
| May 15, 20254:32 PM ET | Point72 Asset Management, L.P.and 2 others | 13G/A | 8.20%2.68M shares | +2.50 ppfrom 5.70% | Mar 31, 2025 | SEC |
| May 15, 20258:22 AM ET | RTW Investments, LPand 1 other | 13G/A | 0.00%0 shares | −9.80 ppfrom 9.80%Below 5% | Mar 31, 2025 | SEC |
| Feb 28, 20254:17 PM ET | Point72 Asset Management, L.P.and 2 others | 13G | 5.70%1.87M shares | New | Feb 27, 2025 | SEC |
| Feb 14, 202511:36 AM ET | Janus Henderson Group PLC | 13G/A | 1.60%522.3K shares | –Below 5% | Dec 31, 2024 | SEC |
| Feb 14, 20259:00 AM ET | RTW Investments, LPand 1 other | 13G | 9.80%3.19M shares | New | Dec 31, 2024 | SEC |
| Feb 7, 20255:36 PM ET | Suvretta Capital Management, LLCand 2 others | 13G | 5.10%1.66M shares | +1.50 ppfrom 3.60% | Feb 5, 2025 | SEC |
| Feb 7, 20255:16 PM ET | Suvretta Capital Management, LLCand 2 others | 13G/A | 3.60%1.17M shares | –Below 5% | Dec 31, 2024 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell PepGen Inc. shares.
No Form 144 notices for PepGen Inc. are on file.