PepGen Inc.
PEPGFigures shown here come from public SEC filings. Dates beside each section show the available history.
How PepGen Inc. Makes Money
No flow chart is shown because the available revenue and expense lines do not reconcile exactly. The reported financial history below remains available.
Financial Summary
Choose a year or quarter, compare it with the same period a year earlier, and open any row for its full filing history.
Loading financial history…
SEC filings supply these figures; updates after the dates shown are not included. This page includes 5 annual periods. The latest annual period ends Dec 31, 2025. The latest insider filing shown is dated Jun 22, 2026. The latest institutional report shown is dated Mar 31, 2026; other ownership filings may exist.
Ownership
Who holds the shares, as reported in SEC ownership filings.
Reported 13F positions
Each row shows what a filer reported for one date, not a current position. The link opens that filing.
| Filer | Report date | Shares | Value | Filing |
|---|---|---|---|---|
| Persistent Asset Partners Ltd | 2026-03-31 | 38,152 | $67.5K | SEC filing |
| Commodore Capital LP | 2026-03-31 | 4,475,000 | $7.92M | SEC filing |
| Point72 Asset Management, L.P. | 2026-03-31 | 65,972 | $117K | SEC filing |
| CITADEL ADVISORS LLC | 2026-03-31 | 207,922 | $368K | SEC filing |
| GF FUND MANAGEMENT CO. LTD. | 2026-03-31 | 1,533 | $2.71K | SEC filing |
| Laurion Capital Management LP | 2026-03-31 | 2,750,855 | $4.87M | SEC filing |
| XTX Topco Ltd | 2026-03-31 | 131,151 | $232K | SEC filing |
| China Universal Asset Management Co., Ltd. | 2026-03-31 | 12,200 | $21.6K | SEC filing |
| MORGAN STANLEY | 2026-03-31 | 998,987 | $1.77M | SEC filing |
| GROUP ONE TRADING LLC | 2026-03-31 | 43,537 | $77.1K | SEC filing |
| LANDSCAPE CAPITAL MANAGEMENT, L.L.C. | 2026-03-31 | 61,073 | $108K | SEC filing |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 2026-03-31 | 27,012 | $47.8K | SEC filing |
| AMERICAN CENTURY COMPANIES INC | 2026-03-31 | 42,601 | $75.4K | SEC filing |
| READYSTATE ASSET MANAGEMENT LP | 2026-03-31 | 115,116 | $204K | SEC filing |
| MONIMUS CAPITAL MANAGEMENT, LP | 2026-03-31 | 598,663 | $1.06M | SEC filing |
| AWM Investment Company, Inc. | 2026-03-31 | 1,830,925 | $3.24M | SEC filing |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 2026-03-31 | 43,700 | $77.3K | SEC filing |
| Tower Research Capital LLC (TRC) | 2026-03-31 | 5,540 | $9.81K | SEC filing |
| BOOTHBAY FUND MANAGEMENT, LLC | 2026-03-31 | 351,374 | $622K | SEC filing |
- Each value is checked against PepGen Inc.'s share prices from within about three months of its report date (insiders' Form 4 trades and the latest close).
- 1 row left out: the value per share it reports is far from PepGen Inc.'s share prices on file from around the report date, far from the value most filers reported for that date, or the value of a security already left out, so it may describe another security or share class.
Filer report history
Two reports per filer, as filed. No change is calculated, because the data on file cannot confirm that both reports describe the same security. Filers with a row left out above, or with no row above to check, are not listed.
- BOOTHBAY FUND MANAGEMENT, LLC: 417,996 shares reported 2025-12-31; 351,374 shares reported 2026-03-31.
- BRIDGEWAY CAPITAL MANAGEMENT, LLC: 63,000 shares reported 2025-12-31; 43,700 shares reported 2026-03-31.
- MONIMUS CAPITAL MANAGEMENT, LP: 138,398 shares reported 2025-12-31; 598,663 shares reported 2026-03-31.
- READYSTATE ASSET MANAGEMENT LP: 113,502 shares reported 2025-12-31; 115,116 shares reported 2026-03-31.
- MORGAN STANLEY: 1,084,400 shares reported 2025-12-31; 998,987 shares reported 2026-03-31.
- XTX Topco Ltd: 98,036 shares reported 2025-12-31; 131,151 shares reported 2026-03-31.
- GF FUND MANAGEMENT CO. LTD.: 1,350 shares reported 2025-12-31; 1,533 shares reported 2026-03-31.
78 filers have only one report here.
Unusually large insider trades
Each trade is compared with the other insider trades of the same kind in the same security among PepGen Inc.'s recent filings on file. Size alone is context, not a prediction or evidence of improper trading.
- 2024-07-18 · Mellion Michelle L: Larger than 29 of the 30 other insider sales of Common Stock on file. SEC filing
- 2024-06-24 · Mellion Michelle L: Larger than 27 of the 30 other insider sales of Common Stock on file. SEC filing
- 2024-05-17 · Svenstrup Niels: Larger than 28 of the 30 other insider sales of Common Stock on file. SEC filing
- 2023-06-06 · McArthur James G: Larger than all 30 other insider sales of Common Stock on file. SEC filing
Independent insiders buying near the same time
Purchases & sales (open market or private)
| Security | Code | Price | Filing | |||
|---|---|---|---|---|---|---|
| 2026-05-21 | Kasraian Kasra · Chief Technical Officer | Common Stock | S — Open market or private sale | −1,233 | 1.41 | SEC filing |
| 2026-03-04 | McArthur James G · President and CEO | Common Stock | S — Open market or private sale | −5,144 | 6.23 | SEC filing |
| 2026-03-04 | McArthur James G · President and CEO | Common Stock | S — Open market or private sale | −131 | 6.33 | SEC filing |
| 2026-03-04 | Donnelly Noel · Chief Financial Officer | Common Stock | S — Open market or private sale | −2,032 | 6.23 | SEC filing |
| 2026-03-04 | Donnelly Noel · Chief Financial Officer | Common Stock | S — Open market or private sale | −52 | 6.33 | SEC filing |
| 2026-03-04 | STRECK PAUL · EVP, Head of R&D | Common Stock | S — Open market or private sale | −1,832 | 6.23 | SEC filing |
| 2026-03-04 | STRECK PAUL · EVP, Head of R&D | Common Stock | S — Open market or private sale | −47 | 6.29 | SEC filing |
| 2025-09-30 | Oxford Science Enterprises plc · Other | Common Stock | P — Open market or private purchase | +200,000 | 3.20 | SEC filing |
Showing 8 of 20 rows
Grants, exercises, tax & gifts
| Security | Code | Filing | |||
|---|---|---|---|---|---|
| 2026-06-18 | KEATING LAURIE · Director | Stock Option (Right to Buy) | A — Grant, award, or other acquisition | +34,000 | SEC filing |
| 2026-06-18 | Dable Habib J · Director | Stock Option (Right to Buy) | A — Grant, award, or other acquisition | +34,000 | SEC filing |
| 2026-06-18 | Wyman Lisa · Director | Stock Option (Right to Buy) | A — Grant, award, or other acquisition | +34,000 | SEC filing |
| 2026-06-18 | RA Capital Healthcare Fund LP · Director, 10% owner | Stock Option (Right to Buy) | A — Grant, award, or other acquisition | +34,000 | SEC filing |
| 2026-06-18 | Mayer Howard · Director | Stock Option (Right to Buy) | A — Grant, award, or other acquisition | +34,000 | SEC filing |
| 2026-06-18 | HENSON HEIDI · Director | Stock Option (Right to Buy) | A — Grant, award, or other acquisition | +34,000 | SEC filing |
| 2026-06-18 | Resnick Joshua · Director | Stock Option (Right to Buy) | A — Grant, award, or other acquisition | +34,000 | SEC filing |
| 2026-06-18 | Finer Mitchell H. · Director | Stock Option (Right to Buy) | A — Grant, award, or other acquisition | +34,000 | SEC filing |
Showing 8 of 20 rows
Other activity
| Security | Code | Filing | |||
|---|---|---|---|---|---|
| 2025-11-04 | McArthur James G · President and CEO | Stock Option (Right to Buy) | D — Disposition to the issuer | −40,815 | SEC filing |
| 2025-11-04 | Donnelly Noel · Chief Financial Officer | Stock Option (Right to Buy) | D — Disposition to the issuer | −144,000 | SEC filing |
| 2025-11-04 | McArthur James G · President and CEO | Stock Option (Right to Buy) | D — Disposition to the issuer | −300,000 | SEC filing |
| 2025-11-04 | McArthur James G · President and CEO | Stock Option (Right to Buy) | D — Disposition to the issuer | −352,705 | SEC filing |
| 2025-11-04 | Donnelly Noel · Chief Financial Officer | Stock Option (Right to Buy) | D — Disposition to the issuer | −203,339 | SEC filing |
| 2025-11-04 | STRECK PAUL · EVP, Head of R&D | Stock Option (Right to Buy) | D — Disposition to the issuer | −40,000 | SEC filing |
| 2025-11-04 | Donnelly Noel · Chief Financial Officer | Stock Option (Right to Buy) | D — Disposition to the issuer | −169,037 | SEC filing |
| 2025-11-04 | McArthur James G · President and CEO | Stock Option (Right to Buy) | D — Disposition to the issuer | −275,000 | SEC filing |
Showing 8 of 10 rows
These tables describe filed transactions, not current holdings. Prices are shown as filed; a currency is added only when the filing's data names one. Amended and possible duplicate rows are left out of size comparisons and transaction groups.