PEPG on Nasdaq
PepGen Inc.
American pharmaceutical preparations company, incorporated in Delaware.
Price unavailable
Last updated Oct 18, 2026.
Overview
Financials
From the company’s reports to the SEC. Every number links to the filing it came from.
Financial statements
Every line of the income statement as filed: the last 3 fiscal years, latest first.6
| Period ending | 2025-12-31 | 2024-12-31 | 2022-12-31 |
|---|---|---|---|
| Research and development | $71.0M | $76.5M | |
| General and administrative | $22.6M | $21.3M | |
| Total operating expenses | $93.6M | $97.7M | |
| Operating loss | -$93.6M | -$97.7M | |
| Interest income | $4.0M | $7.1M | |
| Other (expense) income, net | -$11.0K | -$1.0K | |
| Total other income, net | $4.0M | $7.1M | |
| Net loss before income tax | -$89.6M | -$90.6M | |
| Income tax (expense) benefit | -$48.9K | $617.0K | -$3.7M |
| Net loss | -$89.7M | -$90.0M | |
| Net loss per share, basic | -$2.12 | -$2.85 | |
| Net loss per share, diluted | -$2.12 | -$2.85 | |
| Weighted-average common shares outstanding, basic | 42.2M shares | 31.6M shares | |
| Weighted-average common shares outstanding, diluted | 42.2M shares | 31.6M shares | |
| Cumulative translation adjustment arising during the period | $0 | -$50.0K | |
| Unrealized (loss) gain on marketable securities | -$12.0K | $39.0K | |
| Comprehensive loss | -$89.7M | -$90.0M |
No quarter-by-quarter statement was filed.
Every line of the balance sheet as filed: the last 3 fiscal years (annual) or 3 quarters (quarterly), latest first.6
| Period ending | 2025-12-31 | 2024-12-31 | 2023-12-31 |
|---|---|---|---|
| Cash and cash equivalents | $60.5M | $49.4M | |
| Marketable securities | $87.9M | $70.8M | |
| Prepaid expenses and other current assets | $2.5M | $3.6M | |
| Total current assets | $151.0M | $123.8M | |
| Property and equipment, net | $1.9M | $3.7M | |
| Operating lease right-of-use asset | $19.1M | $21.4M | |
| Restricted cash | $1.5M | $1.5M | |
| Other assets | $372.0K | $426.0K | |
| Total assets | $173.9M | $150.9M | |
| Accounts payable | $822.0K | $1.8M | |
| Accrued expenses | $8.6M | $11.8M | |
| Operating lease liability | $3.2M | $3.1M | |
| Total current liabilities | $12.6M | $16.7M | |
| Operating lease liability, net of current portion | $13.8M | $15.6M | |
| Total liabilities | $26.5M | $32.3M | |
| Common stock, $0.0001 par value; 500,000,000 shares authorized as of December 31, 2025 and 2024, respectively; 68,874,944 and 32,619,663 shares issued and outstanding as of December 31, 2025 and 2024, respectively | $7.0K | $3.0K | |
| Additional paid-in capital | $508.5M | $390.1M | |
| Accumulated other comprehensive income | $11.0K | $23.0K | |
| Accumulated deficit | -$361.1M | -$271.5M | |
| Total stockholders' equity | $147.4M | $118.6M | $108.4M |
| Total liabilities and stockholders' equity | $173.9M | $150.9M | |
| Preferred stock par value | $0.00 | $0.00 | |
| Preferred Stock, Shares Authorized | 10.0M shares | 10.0M shares | |
| Common stock, par value | $0.00 | $0.00 | |
| Common stock, shares authorized | 500.0M shares | 500.0M shares | |
| Common stock, shares, issued | 68.9M shares | 32.6M shares | |
| Common stock, shares outstanding | 68.9M shares | 32.6M shares |
| Period ending | 2025-12-31 | 2024-12-31 | 2023-12-31 |
|---|---|---|---|
| Cash and cash equivalents | $60.5M | $49.4M | |
| Marketable securities | $87.9M | $70.8M | |
| Prepaid expenses and other current assets | $2.5M | $3.6M | |
| Total current assets | $151.0M | $123.8M | |
| Property and equipment, net | $1.9M | $3.7M | |
| Operating lease right-of-use asset | $19.1M | $21.4M | |
| Restricted cash | $1.5M | $1.5M | |
| Other assets | $372.0K | $426.0K | |
| Total assets | $173.9M | $150.9M | |
| Accounts payable | $822.0K | $1.8M | |
| Accrued expenses | $8.6M | $11.8M | |
| Operating lease liability | $3.2M | $3.1M | |
| Total current liabilities | $12.6M | $16.7M | |
| Operating lease liability, net of current portion | $13.8M | $15.6M | |
| Total liabilities | $26.5M | $32.3M | |
| Common stock, $0.0001 par value; 500,000,000 shares authorized as of December 31, 2025 and 2024, respectively; 68,874,944 and 32,619,663 shares issued and outstanding as of December 31, 2025 and 2024, respectively | $7.0K | $3.0K | |
| Additional paid-in capital | $508.5M | $390.1M | |
| Accumulated other comprehensive income | $11.0K | $23.0K | |
| Accumulated deficit | -$361.1M | -$271.5M | |
| Total stockholders' equity | $147.4M | $118.6M | $108.4M |
| Total liabilities and stockholders' equity | $173.9M | $150.9M | |
| Preferred stock par value | $0.00 | $0.00 | |
| Preferred Stock, Shares Authorized | 10.0M shares | 10.0M shares | |
| Common stock, par value | $0.00 | $0.00 | |
| Common stock, shares authorized | 500.0M shares | 500.0M shares | |
| Common stock, shares, issued | 68.9M shares | 32.6M shares | |
| Common stock, shares outstanding | 68.9M shares | 32.6M shares |
Cash flow is reported year to date, not quarter by quarter, so there are no separate quarterly figures.
Every line of the cash flow as filed: the last 2 fiscal years, latest first.6
| Period ending | 2025-12-31 | 2024-12-31 |
|---|---|---|
| Net loss | -$89.7M | -$90.0M |
| Depreciation | $1.4M | $1.5M |
| Stock-based compensation expense | $10.6M | $11.5M |
| Amortization and interest accretion related to operating lease | $3.7M | $3.7M |
| Amortization of premiums and accretion of discounts on marketable securities, net | -$2.2M | -$3.9M |
| Impairment of long-lived assets | $701.0K | $0 |
| Other non-cash adjustments | $70.0K | |
| Prepaids and other current and non-current assets | $1.1M | -$1.3M |
| Accounts payable | -$935.0K | $722.0K |
| Accrued expenses and other non-current liabilities | -$3.3M | -$1.7M |
| Operating lease liabilities, current and non-current | -$3.1M | -$3.0M |
| Net cash used in operating activities | -$81.6M | -$82.4M |
| Purchases of property and equipment | -$264.0K | -$497.0K |
| Purchases of marketable securities | -$94.0M | -$145.2M |
| Maturities of marketable securities | $79.0M | $108.0M |
| Net cash used in investing activities | -$15.2M | -$37.7M |
| Issuance of common stock in public offering, net of underwriters' fees | $108.1M | $76.9M |
| Payment of offering costs | -$413.0K | -$511.0K |
| Issuance of common stock from At-the-Market Sales Agreement, net of underwriters' fees | $9.9M | |
| Proceeds from employee equity plans | $292.0K | $2.5M |
| Net cash provided by financing activities | $108.0M | $88.7M |
| Effect of exchange rate changes on cash | -$16.0K | -$62.0K |
| Net increase (decrease) in cash, cash equivalents and restricted cash | $11.1M | -$31.4M |
| Property and equipment included in accounts payable and accrued expenses | $20.0K | $31.0K |
| Deferred offering costs in AP and accruals | $55.0K | |
| Cash paid for taxes | $82.0K | $71.0K |
No quarter-by-quarter statement was filed.
Leadership
Who has led PepGen Inc., and when. Pick a name to see everywhere that person has worked.
Chief executive
President
Chief financial officer
2025
- Chief executive officerJames G. McArthur May 5, 2022 to now9
- PresidentJames G. McArthur May 5, 2022 to now9
- Chief financial officerNoel Donnelly May 5, 2022 to now10
Board members and other officers (18)
- Chief Technical OfficerKasra Kasraian May 21, 2025 to now11
- Chief Business & Legal OfficerJoseph Vittiglio Dec 10, 2025 to now12
- EVP, Head of R&DPaul Streck Aug 20, 2024 to now13
- OfficerJaya Goyal May 5, 2022 to Mar 28, 202314
- OfficerMichelle L. Mellion May 5, 2022 to Jul 26, 202415
- OfficerNiels Svenstrup May 5, 2022 to May 17, 202416
- OfficerSonia Bracegirdle May 5, 2022 to May 10, 202217
- Board memberLisa Wyman Mar 31, 2025 to now18
- Board memberMitchell H. Finer Mar 31, 2025 to now19
- Board memberHoward Mayer Nov 14, 2023 to now20
- Board memberChristopher Ashton May 5, 2022 to Jun 21, 202421
- Board memberHeidi Henson May 5, 2022 to now22
- Board memberJames G. McArthur May 5, 2022 to now9
- Board memberJoshua Resnick May 5, 2022 to now23
- Board memberPeter Kolchinsky May 5, 2022 to now24
- Board memberRajeev M. Shah May 5, 2022 to now24
- Board memberHabib J. Dable Sep 22, 2022 to now25
- General counselMary Beth Delena Jan 17, 2024 to now26
Timeline
- May 5, 2022New chief executive James G. McArthur becomes CEO9
Filings
302 filings to the SEC since October 2021: 5 annual reports, 14 quarterly reports, 65 major events, 121 insider forms, 33 large holders, 64 other. The latest 20:
- Aug 6, 20268-K EDGAR
- Aug 6, 202610-Q EDGAR
- Jun 22, 20264 PRIMARY DOCUMENT EDGAR
- Jun 22, 20264 PRIMARY DOCUMENT EDGAR
- Jun 22, 20264 PRIMARY DOCUMENT EDGAR
- Jun 22, 20264 PRIMARY DOCUMENT EDGAR
- Jun 22, 20264 PRIMARY DOCUMENT EDGAR
- Jun 22, 20264 PRIMARY DOCUMENT EDGAR
- Jun 22, 20264 PRIMARY DOCUMENT EDGAR
- Jun 22, 20264 EDGAR
- Jun 22, 20268-K EDGAR
- May 26, 20264 EDGAR
- May 21, 2026EFFECT EDGAR
- May 21, 20268-K EDGAR
- May 19, 2026CORRESP EDGAR
- May 18, 2026S-3 EDGAR
- May 15, 2026SCHEDULE 13G/A EDGAR
- May 15, 2026SCHEDULE 13G/A EDGAR
- May 12, 20268-K EDGAR
- May 12, 202610-Q EDGAR
The 302 filings since October 2021 can be filtered by form type and year here when JavaScript is on.
Every filing from the last three years, summarized. The full record is on SEC EDGAR.
Insider trades and holders
Large holders
Investors who own more than 5% must tell the SEC: a 13D if they may seek to influence the company, a 13G if they hold passively. 33 such filings since October 2021, the latest 10:
- May 15, 2026SCHEDULE 13G/A
- May 15, 2026SCHEDULE 13G/A
- Mar 11, 2026SCHEDULE 13G
- Nov 14, 2025SCHEDULE 13G/A
- Oct 3, 2025SCHEDULE 13G
- Oct 1, 2025SCHEDULE 13G/A
- Sep 30, 2025SCHEDULE 13D/A
- Aug 13, 2025SCHEDULE 13G/A
- May 15, 2025SCHEDULE 13G/A
- May 15, 2025SCHEDULE 13G/A
From Forms 4 and Schedules 13D and 13G filed with the SEC.
Held by these funds
The largest holders among investment managers' 13F reports for the quarter ending Jun 30, 2026, the top 25 of 72. Change is in shares since the quarter before.
| Fund | Shares | Value | Share of the fund | Change |
|---|---|---|---|---|
| Ra Capital Management, L.P. | 20,064,545 | $36.1M | 0.3% | No change |
| Commodore Capital LP | 4,475,000 | $8.1M | 0.5% | No change |
| Viking Global Investors LP | 3,482,434 | $6.3M | 0.0% | No change |
| Laurion Capital Management LP | 2,750,855 | $5.0M | 0.4% | No change |
| ADAR1 Capital Management, LLC | 2,591,085 | $4.7M | 0.2% | +983,447 |
| Vivo Capital, LLC | 2,325,000 | $4.2M | 0.4% | No change |
| Vanguard Capital Management LLC | 1,935,920 | $3.5M | 0.0% | −1,779 |
| Millennium Management LLC | 1,786,765 | $3.2M | 0.0% | −292,378 |
| Renaissance Technologies LLC | 1,520,246 | $2.7M | 0.0% | +1,463,446 |
| BlackRock, Inc. | 1,304,262 | $2.3M | 0.0% | +26,478 |
| Marshall Wace, Llp | 866,992 | $1.6M | 0.0% | +568,424 |
| Citadel Advisors LLC | 658,381 | $1.2M | 0.0% | +450,459 |
| AWM Investment Company, Inc. | 600,000 | $1.1M | 0.1% | −1,230,925 |
| Monimus Capital Management, LP | 587,688 | $1.1M | 0.3% | −10,975 |
| Squarepoint Ops LLC | 529,083 | $952.3K | 0.0% | +382,487 |
| Geode Capital Management, LLC | 523,473 | $942.8K | 0.0% | −12,526 |
| Creek Drive Management Group LLC | 450,000 | $810.0K | 0.5% | No change |
| Ikarian Capital, LLC | 447,165 | $804.9K | 0.1% | No change |
| Diadema Partners LP | 373,284 | $671.9K | 0.3% | +222,359 |
| Boothbay Fund Management, LLC | 366,141 | $659.1K | 0.0% | +14,767 |
| Rosalind Advisors, Inc. | 350,000 | $630.0K | 0.2% | New |
| Driehaus Capital Management LLC | 279,909 | $503.8K | 0.0% | No change |
| Boxer Capital Management, LLC | 272,892 | $491.2K | 0.0% | No change |
| Vanguard Fiduciary Trust Co | 261,476 | $470.7K | 0.0% | +1,779 |
| XTX Topco Ltd | 245,347 | $441.6K | 0.0% | +114,196 |
13F reports cover disclosed long positions in U.S. stocks only.
Sources
The numbers on this page point here. Each one links to the record it came from.
- 1SEC EDGARPepGen Inc. filings on SEC EDGAR
- 2SEC EDGARPepGen Inc. filings on SEC EDGAR
- 3SEC EDGARPepGen Inc. 10-K for fiscal 2021
- 4SEC EDGARPepGen Inc. 10-K for fiscal 2022
- 5SEC EDGARPepGen Inc. 10-K for fiscal 2023
- 6SEC EDGARPepGen Inc. 10-K for fiscal 2024
- 7SEC EDGARPepGen Inc. 10-Q for fiscal 2026
- 8SEC EDGARPepGen Inc. 10-Q for fiscal 2026
- 9
- 10
- 11
- 12
- 13SEC EDGARPaul Streck, EVP, Head of R&D
- 14SEC EDGARJaya Goyal, Officer
- 15SEC EDGARMichelle L. Mellion, Officer
- 16SEC EDGARNiels Svenstrup, Officer
- 17SEC EDGARSonia Bracegirdle, Officer
- 18SEC EDGARLisa Wyman, Board member
- 19SEC EDGARMitchell H. Finer, Board member
- 20SEC EDGARHoward Mayer, Board member
- 21SEC EDGARChristopher Ashton, Board member
- 22SEC EDGARHeidi Henson, Board member
- 23SEC EDGARJoshua Resnick, Board member
- 24SEC EDGARPeter Kolchinsky, Board member
- 25SEC EDGARHabib J. Dable, Board member
- 26SEC EDGARMary Beth Delena, General counsel