PepGen Inc. - PEPG
Detailed investor-level table based on 13F positions.
Methodology:
Market value and % of portfolio use SEC reported VALUE ($000).
For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received.
Details.
Rows: 0
| Investor | History | Status | Shares held | Market value ($000) | % of portfolio | Previous % | Rank | Change in shares | % change in shares | Source | Date reported |
|---|---|---|---|---|---|---|---|---|---|---|---|
| RA CAPITAL MANAGEMENT, L.P. | History | No change | 20,064,545 | 35,514 | 0.38% | 1.34% | 1 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| VANGUARD GROUP INC | History | No change | 2,212,834 | 14,405 | 0.0% | 0.0% | 2 | 0 | 0.0% | Q4 2025 | Jan 29, 2026 |
| Commodore Capital LP | History | Added to | 4,475,000 | 7,920 | 0.46% | 1.47% | 3 | +1,075,000 | 31.62% | Q1 2026 | May 15, 2026 |
| VIKING GLOBAL INVESTORS LP | History | No change | 3,482,434 | 6,163 | 0.02% | 0.06% | 4 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| Laurion Capital Management LP | History | Added to | 2,750,855 | 4,869 | 0.21% | 0.5% | 5 | +698,722 | 34.05% | Q1 2026 | May 14, 2026 |
| Vivo Capital, LLC | History | No change | 2,325,000 | 4,115 | 0.34% | 0.98% | 6 | 0 | 0.0% | Q1 2026 | May 20, 2026 |
| MILLENNIUM MANAGEMENT LLC | History | Added to | 2,079,143 | 3,680 | 0.0% | 0.0% | 7 | +1,881,200 | 950.37% | Q1 2026 | May 15, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | History | New | 1,937,699 | 3,429 | 0.0% | — | 8 | +1,937,699 | New | Q1 2026 | May 15, 2026 |
| AWM Investment Company, Inc. | History | Added to | 1,830,925 | 3,240 | 0.36% | 0.82% | 9 | +530,925 | 40.84% | Q1 2026 | May 15, 2026 |
| ADAR1 Capital Management, LLC | History | Added to | 1,607,638 | 2,845 | 0.17% | 0.02% | 10 | +1,570,796 | 4263.6% | Q1 2026 | May 15, 2026 |
| Woodline Partners LP | History | No change | 1,311,021 | 2,320 | 0.01% | 0.03% | 11 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| Pictet Asset Management Holding SA | History | Reduced | 1,306,783 | 2,313 | 0.0% | 0.01% | 12 | -45,641 | -3.37% | Q1 2026 | Apr 22, 2026 |
| BlackRock, Inc. | History | Added to | 1,277,784 | 2,261 | 0.0% | 0.0% | 13 | +43,370 | 3.51% | Q1 2026 | May 13, 2026 |
| MORGAN STANLEY | History | Reduced | 998,987 | 1,768 | 0.0% | 0.0% | 14 | -85,413 | -7.88% | Q1 2026 | May 15, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | History | Added to | 887,468 | 1,570 | 0.0% | 0.0% | 15 | +406,970 | 84.7% | Q1 2026 | May 15, 2026 |
| Ikarian Capital, LLC | History | No change | 747,165 | 1,322 | 0.11% | 0.38% | 16 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| Kalehua Capital Management LLC | History | New | 729,961 | 1,292 | 1.09% | — | 17 | +729,961 | New | Q1 2026 | May 15, 2026 |
| Qube Research & Technologies Ltd | History | Added to | 706,472 | 1,250 | 0.0% | 0.0% | 18 | +675,238 | 2161.87% | Q1 2026 | May 15, 2026 |
| Nantahala Capital Management, LLC | History | Reduced | 681,158 | 1,205 | 0.04% | 0.33% | 19 | -866,071 | -55.98% | Q1 2026 | May 15, 2026 |
| MONIMUS CAPITAL MANAGEMENT, LP | History | Added to | 598,663 | 1,059 | 0.29% | 0.59% | 20 | +460,265 | 332.57% | Q1 2026 | May 15, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | History | Reduced | 535,999 | 949 | 0.0% | 0.0% | 21 | -6,110 | -1.13% | Q1 2026 | May 15, 2026 |
| Creek Drive Management Group LLC | History | New | 450,000 | 796 | 0.18% | — | 22 | +450,000 | New | Q1 2026 | May 15, 2026 |
| BOOTHBAY FUND MANAGEMENT, LLC | History | Reduced | 427,674 | 756 | 0.01% | 0.05% | 23 | -66,622 | -13.48% | Q1 2026 | May 15, 2026 |
| CITADEL ADVISORS LLC | History | Added to | 363,722 | 643 | 0.0% | 0.0% | 24 | +77,433 | 27.05% | Q1 2026 | May 15, 2026 |
| MARSHALL WACE, LLP | History | Added to | 298,568 | 528 | 0.0% | 0.0% | 25 | +7,979 | 2.75% | Q1 2026 | May 14, 2026 |
| DRIEHAUS CAPITAL MANAGEMENT LLC | History | Reduced | 279,909 | 495 | 0.0% | 0.01% | 26 | -35,091 | -11.14% | Q1 2026 | May 15, 2026 |
| Boxer Capital Management, LLC | History | Reduced | 272,892 | 483 | 0.06% | 0.53% | 27 | -101,000 | -27.01% | Q1 2026 | May 15, 2026 |
| VANGUARD FIDUCIARY TRUST CO | History | New | 259,697 | 459 | 0.0% | — | 28 | +259,697 | New | Q1 2026 | May 08, 2026 |
| JANE STREET GROUP, LLC | History | Added to | 258,691 | 457 | 0.0% | 0.0% | 29 | +65,958 | 34.22% | Q1 2026 | May 12, 2026 |
| STATE STREET CORP | History | Added to | 229,390 | 406 | 0.0% | 0.0% | 30 | +11,900 | 5.47% | Q1 2026 | May 15, 2026 |
| DIMENSIONAL FUND ADVISORS LP | History | Added to | 216,824 | 394 | 0.0% | 0.0% | 31 | +81,608 | 60.35% | Q1 2026 | May 07, 2026 |
| Artia Global Partners LP | History | No change | 205,324 | 363 | 0.07% | 0.19% | 32 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| TWO SIGMA INVESTMENTS, LP | History | Reduced | 181,705 | 321 | 0.0% | 0.0% | 33 | -85,720 | -32.05% | Q1 2026 | May 15, 2026 |
| Quadrature Capital Ltd | History | New | 158,826 | 281 | 0.0% | — | 34 | +158,826 | New | Q1 2026 | May 15, 2026 |
| DIADEMA PARTNERS LP | History | New | 150,925 | 267 | 0.05% | — | 35 | +150,925 | New | Q1 2026 | May 15, 2026 |
| LUMINUS MANAGEMENT LLC | History | New | 150,000 | 265 | 0.16% | — | 36 | +150,000 | New | Q1 2026 | May 15, 2026 |
| Squarepoint Ops LLC | History | Added to | 146,596 | 259 | 0.0% | 0.0% | 37 | +115,383 | 369.66% | Q1 2026 | May 15, 2026 |
| Caption Management, LLC | History | New | 145,200 | 257 | 0.0% | — | 38 | +145,200 | New | Q1 2026 | May 15, 2026 |
| GOLDMAN SACHS GROUP INC | History | Reduced | 138,653 | 245 | 0.0% | 0.0% | 39 | -102,965 | -42.61% | Q1 2026 | May 15, 2026 |
| XTX Topco Ltd | History | Added to | 131,151 | 232 | 0.0% | 0.02% | 40 | +33,115 | 33.78% | Q1 2026 | May 15, 2026 |
| WELLINGTON MANAGEMENT GROUP LLP | History | New | 121,974 | 215 | 0.0% | — | 41 | +121,974 | New | Q1 2026 | May 15, 2026 |
| READYSTATE ASSET MANAGEMENT LP | History | Added to | 115,116 | 203 | 0.01% | 0.03% | 42 | +1,614 | 1.42% | Q1 2026 | May 15, 2026 |
| NORTHERN TRUST CORP | History | Reduced | 104,899 | 185 | 0.0% | 0.0% | 43 | -13,358 | -11.3% | Q1 2026 | May 14, 2026 |
| RBF Capital, LLC | History | No change | 95,042 | 168 | 0.01% | 0.03% | 44 | 0 | 0.0% | Q1 2026 | May 18, 2026 |
| UBS Group AG | History | Added to | 94,030 | 166 | 0.0% | 0.0% | 45 | +85,962 | 1065.47% | Q1 2026 | May 05, 2026 |
| ExodusPoint Capital Management, LP | History | Reduced | 79,581 | 140 | 0.0% | 0.01% | 46 | -41,147 | -34.08% | Q1 2026 | May 14, 2026 |
| TWO SIGMA ADVISERS, LP | History | No change | 20,806 | 135 | 0.0% | 0.0% | 47 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Hudson Bay Capital Management LP | History | Added to | 69,593 | 123 | 0.0% | 0.0% | 48 | +202 | 0.29% | Q1 2026 | May 13, 2026 |
| Connor, Clark & Lunn Investment Management Ltd. | History | Reduced | 69,123 | 122 | 0.0% | 0.0% | 49 | -4,183 | -5.71% | Q1 2026 | May 11, 2026 |
| Rangeley Capital, LLC | History | Added to | 68,096 | 120 | 0.12% | 0.2% | 50 | +31,896 | 88.11% | Q1 2026 | May 15, 2026 |
| Brevan Howard Capital Management LP | History | New | 66,402 | 117 | 0.0% | — | 51 | +66,402 | New | Q1 2026 | May 15, 2026 |
| Point72 Asset Management, L.P. | History | Reduced | 65,972 | 116 | 0.0% | 0.02% | 52 | -2,208,444 | -97.1% | Q1 2026 | May 15, 2026 |
| ACADIAN ASSET MANAGEMENT LLC | History | Added to | 64,607 | 112 | 0.0% | 0.0% | 53 | +43,769 | 210.04% | Q1 2026 | May 13, 2026 |
| BNP PARIBAS FINANCIAL MARKETS | History | Reduced | 63,732 | 112 | 0.0% | 0.0% | 54 | -25,843 | -28.85% | Q1 2026 | May 12, 2026 |
| LANDSCAPE CAPITAL MANAGEMENT, L.L.C. | History | Added to | 61,073 | 108 | 0.01% | 0.02% | 55 | +24,948 | 69.06% | Q1 2026 | May 12, 2026 |
| Seven Fleet Capital Management LP | History | New | 59,500 | 105 | 0.03% | — | 56 | +59,500 | New | Q1 2026 | Jun 04, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | History | Reduced | 56,800 | 100 | 0.0% | 0.0% | 57 | -91,100 | -61.6% | Q1 2026 | May 14, 2026 |
| Verdad Advisers, LP | History | New | 54,380 | 96 | 0.11% | — | 58 | +54,380 | New | Q1 2026 | May 15, 2026 |
| BANK OF AMERICA CORP /DE/ | History | Reduced | 53,316 | 94 | 0.0% | 0.0% | 59 | -297,825 | -84.82% | Q1 2026 | May 15, 2026 |
| BARCLAYS PLC | History | Reduced | 45,130 | 79 | 0.0% | 0.0% | 60 | -10,587 | -19.0% | Q1 2026 | May 14, 2026 |
| GROUP ONE TRADING LLC | History | New | 43,537 | 77 | 0.0% | — | 62 | +43,537 | New | Q1 2026 | May 13, 2026 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | History | Reduced | 43,700 | 77 | 0.0% | 0.01% | 61 | -19,300 | -30.63% | Q1 2026 | May 15, 2026 |
| AMERICAN CENTURY COMPANIES INC | History | Added to | 42,601 | 75 | 0.0% | 0.0% | 63 | +26,851 | 170.48% | Q1 2026 | May 15, 2026 |
| Scientech Research LLC | History | New | 42,073 | 74 | 0.06% | — | 64 | +42,073 | New | Q1 2026 | May 15, 2026 |
| GSA CAPITAL PARTNERS LLP | History | Reduced | 38,286 | 68 | 0.0% | 0.02% | 65 | -5,154 | -11.86% | Q1 2026 | May 08, 2026 |
| Persistent Asset Partners Ltd | History | New | 38,152 | 67 | 0.02% | — | 66 | +38,152 | New | Q1 2026 | May 12, 2026 |
| Rathbones Group PLC | History | No change | 32,003 | 56 | 0.0% | 0.0% | 67 | 0 | 0.0% | Q1 2026 | May 12, 2026 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | History | New | 27,012 | 47 | 0.0% | — | 68 | +27,012 | New | Q1 2026 | May 15, 2026 |
| OMERS ADMINISTRATION Corp | History | Reduced | 24,900 | 44 | 0.0% | 0.0% | 69 | -2,700 | -9.78% | Q1 2026 | May 15, 2026 |
| MANGROVE PARTNERS IM, LLC | History | New | 19,774 | 35 | 0.0% | — | 70 | +19,774 | New | Q1 2026 | May 15, 2026 |
| Virtu Financial LLC | History | New | 18,974 | 34 | 0.0% | — | 71 | +18,974 | New | Q1 2026 | May 14, 2026 |
| Vanguard Global Advisers, LLC | History | New | 17,723 | 31 | 0.0% | — | 72 | +17,723 | New | Q1 2026 | May 08, 2026 |
| Schonfeld Strategic Advisors LLC | History | New | 17,400 | 30 | 0.0% | — | 73 | +17,400 | New | Q1 2026 | May 15, 2026 |
| Catalyst Funds Management Pty Ltd | History | New | 15,300 | 27 | 0.0% | — | 74 | +15,300 | New | Q1 2026 | May 11, 2026 |
| Diametric Capital, LP | History | New | 15,221 | 26 | 0.01% | — | 75 | +15,221 | New | Q1 2026 | May 15, 2026 |
| BALYASNY ASSET MANAGEMENT L.P. | History | Reduced | 14,293 | 25 | 0.0% | 0.01% | 76 | -851,976 | -98.35% | Q1 2026 | May 15, 2026 |
| China Universal Asset Management Co., Ltd. | History | Added to | 12,200 | 21 | 0.0% | 0.01% | 78 | +998 | 8.91% | Q1 2026 | Apr 27, 2026 |
| JPMORGAN CHASE & CO | History | Reduced | 5,185 | 21 | 0.0% | 0.0% | 77 | -56 | -1.07% | Q1 2026 | May 13, 2026 |
| Jefferies Financial Group Inc. | History | Reduced | 10,289 | 18 | 0.0% | 0.0% | 79 | -3,440 | -25.06% | Q1 2026 | May 07, 2026 |
| PRELUDE CAPITAL MANAGEMENT, LLC | History | New | 10,153 | 17 | 0.0% | — | 80 | +10,153 | New | Q1 2026 | May 15, 2026 |
| Tower Research Capital LLC (TRC) | History | Reduced | 5,540 | 9 | 0.0% | 0.0% | 81 | -3,949 | -41.62% | Q1 2026 | May 15, 2026 |
| Mirae Asset Global Investments Co., Ltd. | History | Added to | 3,586 | 6 | 0.0% | 0.0% | 82 | +245 | 7.33% | Q1 2026 | May 04, 2026 |
| CITIGROUP INC | History | Reduced | 2,506 | 4 | 0.0% | 0.0% | 83 | -28,831 | -92.0% | Q1 2026 | May 11, 2026 |
| Zurcher Kantonalbank (Zurich Cantonalbank) | History | New | 2,006 | 3 | 0.0% | — | 84 | +2,006 | New | Q1 2026 | May 15, 2026 |
| ROYAL BANK OF CANADA | History | Added to | 982 | 2 | 0.0% | 0.0% | 86 | +599 | 156.4% | Q1 2026 | May 15, 2026 |
| GF FUND MANAGEMENT CO. LTD. | History | Added to | 1,533 | 2 | 0.0% | 0.0% | 87 | +183 | 13.56% | Q1 2026 | Apr 15, 2026 |
| FMR LLC | History | No change | 1,664 | 2 | 0.0% | 0.0% | 85 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| SIMPLEX TRADING, LLC | History | Reduced | 800 | 1 | 0.0% | 0.0% | 88 | -108,694 | -99.27% | Q1 2026 | May 14, 2026 |
| Accent Capital Management, LLC | History | New | 718 | 1 | 0.0% | — | 90 | +718 | New | Q1 2026 | May 11, 2026 |
| JONES FINANCIAL COMPANIES LLLP | History | New | 326 | 1 | 0.0% | — | 89 | +326 | New | Q1 2026 | May 15, 2026 |
| BVF INC/IL | History | Closed out | 0 | 0 | — | 0.42% | — | -1,915,000 | -100.0% | Q1 2026 | May 15, 2026 |
| JANUS HENDERSON GROUP PLC | History | Closed out | 0 | 0 | — | 0.0% | — | -1,500,000 | -100.0% | Q1 2026 | May 18, 2026 |
| PERCEPTIVE ADVISORS LLC | History | Closed out | 0 | 0 | — | 0.1% | — | -829,870 | -100.0% | Q1 2026 | May 29, 2026 |
| Octagon Capital Advisors LP | History | Closed out | 0 | 0 | — | 0.55% | — | -700,000 | -100.0% | Q1 2026 | May 15, 2026 |
| Siren, L.L.C. | History | Closed out | 0 | 0 | — | 0.14% | — | -700,000 | -100.0% | Q1 2026 | May 14, 2026 |
| Walleye Capital LLC | History | Closed out | 0 | 0 | — | 0.01% | — | -255,974 | -100.0% | Q1 2026 | May 13, 2026 |
| 683 Capital Management, LLC | History | Closed out | 0 | 0 | — | 0.05% | — | -186,916 | -100.0% | Q1 2026 | May 15, 2026 |
| Polymer Capital Management (HK) LTD | History | Closed out | 0 | 0 | — | 0.15% | — | -160,000 | -100.0% | Q1 2026 | May 14, 2026 |
| SPHERA FUNDS MANAGEMENT LTD. | History | Closed out | 0 | 0 | — | 0.15% | — | -121,467 | -100.0% | Q1 2026 | May 15, 2026 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | History | Closed out | 0 | 0 | — | 0.0% | — | -100,000 | -100.0% | Q1 2026 | May 15, 2026 |
| Jump Financial, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -55,438 | -100.0% | Q1 2026 | May 14, 2026 |
| Resolute Capital Asset Partners LLC | History | Closed out | 0 | 0 | — | 0.16% | — | -50,000 | -100.0% | Q1 2026 | May 15, 2026 |
| Trexquant Investment LP | History | Closed out | 0 | 0 | — | 0.0% | — | -24,306 | -100.0% | Q1 2026 | May 15, 2026 |
| Lighthouse Investment Partners, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -14,580 | -100.0% | Q1 2026 | May 14, 2026 |
| BANK OF MONTREAL /CAN/ | History | Closed out | 0 | 0 | — | 0.0% | — | -10,001 | -100.0% | Q1 2026 | May 13, 2026 |
| Fortitude Family Office, LLC | History | New | 112 | 0 | — | — | — | +112 | New | Q1 2026 | Apr 15, 2026 |
| OPTIMA CAPITAL LLC | History | Closed out | 0 | 0 | — | — | — | -108 | -100.0% | Q1 2026 | May 04, 2026 |
| Bare Financial Services, Inc | History | New | 102 | 0 | — | — | — | +102 | New | Q1 2026 | May 14, 2026 |
| Allworth Financial LP | History | Added to | 68 | 0 | — | — | — | +40 | 142.86% | Q1 2026 | May 14, 2026 |
| Larson Financial Group LLC | History | Closed out | 0 | 0 | — | — | — | -13 | -100.0% | Q1 2026 | May 15, 2026 |
| OSAIC HOLDINGS, INC. | History | Closed out | 0 | 0 | — | — | — | -8 | -100.0% | Q1 2026 | May 15, 2026 |
| NISA INVESTMENT ADVISORS, LLC | History | No change | 195 | 0 | — | 0.0% | — | 0 | 0.0% | Q1 2026 | Apr 30, 2026 |
| CWM, LLC | History | No change | 5 | 0 | — | — | — | 0 | 0.0% | Q1 2026 | May 14, 2026 |
| Parallel Advisors, LLC | History | No change | 135 | 0 | — | — | — | 0 | 0.0% | Q1 2026 | Jun 02, 2026 |
| Cornerstone Financial Management LLC | History | No change | 121 | 0 | — | — | — | 0 | 0.0% | Q1 2026 | May 08, 2026 |