PEPGEN INC PEPG
COM · Common Stock · CUSIP 713317105
- SectorHealth care
- IndustryPharmaceutical Preparations
- HeadquartersBoston, MA
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($41.8k this quarter). Holder counts are more reliable. Shares outstanding: 32.6m as of 2024-08-01, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $15.96.
Trends to Q2 2024
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 43 |
| Q4 2022 | 47 |
| Q1 2023 | 46 |
| Q2 2023 | 45 |
| Q3 2023 | 44 |
| Q4 2023 | 43 |
| Q1 2024 | 57 |
| Q2 2024 | 62 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2022 | 30 | 14 |
| Q1 2023 | 25 | 16 |
| Q2 2023 | 14 | 29 |
| Q3 2023 | 15 | 20 |
| Q4 2023 | 18 | 19 |
| Q1 2024 | 37 | 15 |
| Q2 2024 | 35 | 22 |
Biggest buyers
| Polar Capital Holdings Plc | New | +531.1k |
| BlackRock Inc. | Added | +257.3k |
| Invesco Ltd. | New | +231.1k |
| Woodline Partners LP | New | +174.0k |
| GEODE CAPITAL MANAGEMENT, LLC | Added | +79.6k |
| STATE STREET CORP | Added | +76.4k |
| Sofinnova Investments, Inc. | Added | +57.5k |
| VANGUARD GROUP INC | Added | +52.9k |
| ZACKS INVESTMENT MANAGEMENT | New | +39.9k |
| WELLINGTON MANAGEMENT GROUP LLP | New | +22.9k |
Biggest sellers
| JANUS HENDERSON GROUP PLC | Reduced | -624.8k |
| Artal Group S.A. | Reduced | -86.7k |
| Monashee Investment Management LLC | Sold out | -85.9k |
| SUPERSTRING CAPITAL MANAGEMENT LP | Reduced | -85.1k |
| FMR LLC | Reduced | -69.9k |
| Walleye Capital LLC | Sold out | -64.6k |
| MORGAN STANLEY | Reduced | -58.4k |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | Reduced | -50.5k |
| Point72 Asset Management, L.P. | Reduced | -47.0k |
| CITIGROUP INC | Reduced | -37.2k |
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| RA CAPITAL MANAGEMENT, L.P. 13D · may seek influence filed 2025-09-30 | 29.2% |
| Oxford Science Enterprises plc 13G · passive investor filed 2025-10-01 | 7.2% |
| Commodore Capital LP 13G · passive investor +1.4 pts · filed 2026-05-15 | 6.5% |
| VIKING GLOBAL INVESTORS LP 13G · passive investor -0.1 pts · filed 2026-05-15 | 5.0% |
Insider purchases and sales in Q2 2024
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q3 2022 | 0 | — | 0 | — | — |
| Q4 2022 | 0 | — | 0 | — | — |
| Q1 2023 | 0 | — | 1 | $110.6k | — |
| Q2 2023 | 0 | — | 1 | $505.4k | $505.4k |
| Q3 2023 | 0 | — | 0 | — | — |
| Q4 2023 | 1 | $7.1k | 0 | — | — |
| Q1 2024 | 1 | $27.2m | 0 | — | — |
| Q2 2024 | 0 | — | 2 | $487.6k | $353.5k |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2024-06-24 | Mellion Michelle L Chief Medical Officer | Sold plan | $168.4k9.3k shares |
| 2024-06-12 | Mellion Michelle L Chief Medical Officer | Sold plan | $19.6k1.1k shares |
| 2024-06-11 | Mellion Michelle L Chief Medical Officer | Sold plan | $9.0k500 shares |
| 2024-06-06 | Mellion Michelle L SVP, Clinical Development | Sold plan | $25.4k1.4k shares |
| 2024-06-05 | Mellion Michelle L SVP, Clinical Development | Sold plan | $131.1k7.2k shares |
| 2024-05-17 | Svenstrup Niels SVP, Chem. Mfg & Controls | Sold | $134.1k10.0k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2024
| Manager | Shares | Change |
|---|---|---|
| RA CAPITAL MANAGEMENT, L.P. 2.26% of their portfolio | 10.7m $170.6m | Unchanged |
| MONTANOVA CAPITAL, LLC 0.99% of their portfolio | 1.5m $24.3m | Unchanged |
| Frazier Life Sciences Management, L.P. 1.12% of their portfolio | 1.5m $24.0m | Unchanged |
| VIKING GLOBAL INVESTORS LP 0.09% of their portfolio | 1.5m $23.7m | Unchanged |
| PERCEPTIVE ADVISORS LLC 0.54% of their portfolio | 1.4m $22.5m | Unchanged |
| ADAGE CAPITAL PARTNERS GP, L.L.C. 0.04% of their portfolio | 1.3m $21.2m | Reduced -6.1k |
| BlackRock Inc. 0.00% of their portfolio | 1.0m $16.6m | Added +257.3k |
| VANGUARD GROUP INC 0.00% of their portfolio | 903.4k $14.4m | Added +52.9k |
| Laurion Capital Management LP 0.44% of their portfolio | 841.4k $13.4m | Unchanged |
| Sofinnova Investments, Inc. 0.56% of their portfolio | 561.1k $9.0m | Added +57.5k |
| JANUS HENDERSON GROUP PLC 0.00% of their portfolio | 541.9k $8.6m | Reduced -624.8k |
| Polar Capital Holdings Plc 0.05% of their portfolio | 531.1k $8.5m | New |
| FMR LLC 0.00% of their portfolio | 388.8k $6.2m | Reduced -69.9k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 379.1k $6.1m | Added +79.6k |
| Octagon Capital Advisors LP 0.99% of their portfolio | 376.1k $6.0m | Unchanged |
| STATE STREET CORP 0.00% of their portfolio | 317.4k $5.1m | Added +76.4k |
| Invesco Ltd. 0.00% of their portfolio | 231.1k $3.7m | New |
| Woodline Partners LP 0.03% of their portfolio | 174.0k $2.8m | New |
| Point72 Asset Management, L.P. 0.01% of their portfolio | 145.2k $2.3m | Reduced -47.0k |
| Artal Group S.A. 0.05% of their portfolio | 113.3k $1.8m | Reduced -86.7k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 97.5k $1.6m | Added +5.3k |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.02% of their portfolio | 48.7k $777.3k | Reduced -50.5k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 46.8k $746.3k | Added +15.5k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 44.2k $704.7k | Added +13.4k |
| ZACKS INVESTMENT MANAGEMENT 0.01% of their portfolio | 39.9k $636.8k | New |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 36.1k $575.9k | Added +17.0k |
| Rathbones Group PLC 0.00% of their portfolio | 32.0k $510.8k | Unchanged |
| Crestline Management, L.P. 0.04% of their portfolio | 31.2k $498.4k | Reduced -3.8k |
| SUPERSTRING CAPITAL MANAGEMENT LP 0.59% of their portfolio | 29.2k $466.8k | Reduced -85.1k |
| Nuveen Asset Management, LLC 0.00% of their portfolio | 28.6k $455.8k | Added +14.7k |
| MORGAN STANLEY 0.00% of their portfolio | 27.0k $431.3k | Reduced -58.4k |
| WELLINGTON MANAGEMENT GROUP LLP 0.00% of their portfolio | 22.9k $365.5k | New |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 21.5k $343.0k | New |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 20.0k $319.6k | Added +3.3k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 18.9k $300.9k | Added +5.0k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 16.0k $256.0k | Added +4.0k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 13.7k $217.9k | Reduced -17.3k |
| MARSHALL WACE, LLP 0.00% of their portfolio | 12.3k $195.5k | New |
| RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio | 12.0k $191.5k | New |
| STRS OHIO 0.00% of their portfolio | 10.2k $162.8k | Added +6.6k |
| MetLife Investment Management, LLC 0.00% of their portfolio | 9.4k $150.3k | Added +3.6k |
| Corebridge Financial, Inc. 0.00% of their portfolio | 8.4k $133.4k | First filing |
| Tower Research Capital LLC (TRC) 0.00% of their portfolio | 7.0k $112.1k | Added +6.8k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 6.7k $107.3k | Added +2.5k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 6.5k $103.5k | Added +5 |
| BARCLAYS PLC 0.00% of their portfolio | 5.2k $83.8k | Reduced -1.8k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 5.2k $82.7k | Added +1.7k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio | 4.9k $77.9k | First filing |
| UBS Group AG 0.00% of their portfolio | 4.8k $76.5k | Reduced -5.3k |
| CITIGROUP INC 0.00% of their portfolio | 3.4k $54.2k | Reduced -37.2k |
| Point72 (DIFC) Ltd 0.00% of their portfolio | 2.6k $41.8k | New |
| Legal & General Group Plc 0.00% of their portfolio | 1.7k $26.8k | Added +825 |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 1.5k $23.0k | Added +1.2k |
| Ameritas Investment Partners, Inc. 0.00% of their portfolio | 1.2k $18.8k | Unchanged |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 1.1k $18.0k | Added +116 |
| ACADIAN ASSET MANAGEMENT LLC 0.00% of their portfolio | 706 $11.0k | Reduced -1.3k |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 353 $5.6k | New |
| AMALGAMATED BANK 0.00% of their portfolio | 337 $5.0k | Unchanged |
| Arax Advisory Partners 0.00% of their portfolio | 76 $1.2k | New |
| NISA INVESTMENT ADVISORS, LLC 0.00% of their portfolio | 32 $511 | Added +23 |
| CWM, LLC 0.00% of their portfolio | 2 $0 | Added +1 |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0.00% of their portfolio | 0 $0 | Unchanged |