ASSEMBLY BIOSCIENCES, INC. - ASMB
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| GILEAD SCIENCES, INC. | History | No change | 4,505,391 | 125,024 | 5.9% | 7.92% | 1 | 0 | 0.0% | Q1 2026 | May 08, 2026 |
| FARALLON CAPITAL MANAGEMENT LLC | History | No change | 1,227,590 | 34,065 | 0.19% | 0.2% | 2 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| RA CAPITAL MANAGEMENT, L.P. | History | No change | 1,020,410 | 28,316 | 0.3% | 0.36% | 3 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| Commodore Capital LP | History | No change | 1,000,000 | 27,750 | 1.61% | 2.26% | 4 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| JANUS HENDERSON GROUP PLC | History | Added to | 849,309 | 23,479 | 0.01% | 0.01% | 5 | +11,384 | 1.36% | Q1 2026 | May 18, 2026 |
| VANGUARD GROUP INC | History | No change | 572,898 | 19,484 | 0.0% | 0.0% | 6 | 0 | 0.0% | Q4 2025 | Jan 29, 2026 |
| Paradigm Biocapital Advisors LP | History | No change | 665,251 | 18,460 | 0.38% | 0.58% | 7 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | History | New | 490,447 | 13,609 | 0.0% | — | 8 | +490,447 | New | Q1 2026 | May 15, 2026 |
| Parkman Healthcare Partners LLC | History | Added to | 411,227 | 11,411 | 1.18% | 0.81% | 9 | +161,870 | 64.91% | Q1 2026 | May 15, 2026 |
| Point72 Asset Management, L.P. | History | Reduced | 344,105 | 9,548 | 0.01% | 0.02% | 10 | -256,504 | -42.71% | Q1 2026 | May 15, 2026 |
| Blackstone Inc. | History | Reduced | 296,855 | 8,237 | 0.03% | 0.04% | 11 | -21,899 | -6.87% | Q1 2026 | May 15, 2026 |
| MILLENNIUM MANAGEMENT LLC | History | Added to | 233,650 | 6,483 | 0.0% | 0.0% | 12 | +135,429 | 137.88% | Q1 2026 | May 15, 2026 |
| BlackRock, Inc. | History | Added to | 202,743 | 5,626 | 0.0% | 0.0% | 13 | +10,447 | 5.43% | Q1 2026 | May 13, 2026 |
| STEMPOINT CAPITAL LP | History | Added to | 185,435 | 5,145 | 1.0% | 0.91% | 14 | +28,707 | 18.32% | Q1 2026 | May 15, 2026 |
| B Group, Inc. | History | No change | 175,706 | 4,875 | 3.61% | 4.41% | 15 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| MARSHALL WACE, LLP | History | Added to | 163,400 | 4,534 | 0.0% | 0.0% | 16 | +34,325 | 26.59% | Q1 2026 | May 14, 2026 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | History | No change | 161,000 | 4,467 | 0.01% | 0.01% | 17 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| Patient Square Capital LP | History | Added to | 136,315 | 3,782 | 0.67% | 0.92% | 18 | +9,315 | 7.33% | Q1 2026 | May 15, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | History | Added to | 132,971 | 3,691 | 0.0% | 0.0% | 19 | +1,664 | 1.27% | Q1 2026 | May 15, 2026 |
| Schonfeld Strategic Advisors LLC | History | Added to | 120,500 | 3,343 | 0.02% | 0.01% | 20 | +66,265 | 122.18% | Q1 2026 | May 15, 2026 |
| Caption Management, LLC | History | Reduced | 81,841 | 2,271 | 0.01% | 0.02% | 21 | -24,750 | -23.22% | Q1 2026 | May 15, 2026 |
| HighVista Strategies LLC | History | New | 74,735 | 2,073 | 0.57% | — | 22 | +74,735 | New | Q1 2026 | May 15, 2026 |
| VANGUARD FIDUCIARY TRUST CO | History | New | 71,606 | 1,987 | 0.0% | — | 23 | +71,606 | New | Q1 2026 | May 08, 2026 |
| Qube Research & Technologies Ltd | History | Added to | 69,256 | 1,921 | 0.0% | 0.0% | 24 | +27,071 | 64.17% | Q1 2026 | May 15, 2026 |
| STATE STREET CORP | History | Added to | 56,689 | 1,573 | 0.0% | 0.0% | 25 | +3,700 | 6.98% | Q1 2026 | May 15, 2026 |
| Seven Fleet Capital Management LP | History | Reduced | 56,147 | 1,558 | 0.49% | 1.7% | 26 | -17,615 | -23.88% | Q1 2026 | May 15, 2026 |
| JPMORGAN CHASE & CO | History | Added to | 53,962 | 1,437 | 0.0% | 0.0% | 27 | +5,803 | 12.05% | Q1 2026 | May 13, 2026 |
| MONIMUS CAPITAL MANAGEMENT, LP | History | Added to | 48,390 | 1,342 | 0.37% | 0.86% | 28 | +10,089 | 26.34% | Q1 2026 | May 15, 2026 |
| GSA CAPITAL PARTNERS LLP | History | Added to | 45,049 | 1,250 | 0.08% | 0.04% | 29 | +32,350 | 254.74% | Q1 2026 | May 08, 2026 |
| NORTHERN TRUST CORP | History | Reduced | 41,014 | 1,138 | 0.0% | 0.0% | 30 | -213 | -0.52% | Q1 2026 | May 14, 2026 |
| Eversept Partners, LP | History | Reduced | 40,889 | 1,134 | 0.06% | 0.27% | 31 | -118,787 | -74.39% | Q1 2026 | May 15, 2026 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | History | Added to | 39,446 | 1,094 | 0.0% | 0.0% | 32 | +1,634 | 4.32% | Q1 2026 | May 14, 2026 |
| GOLDMAN SACHS GROUP INC | History | Added to | 36,205 | 1,004 | 0.0% | 0.0% | 33 | +1,411 | 4.06% | Q1 2026 | May 15, 2026 |
| JANE STREET GROUP, LLC | History | Reduced | 34,499 | 957 | 0.0% | 0.0% | 34 | -19,203 | -35.76% | Q1 2026 | May 12, 2026 |
| MORGAN STANLEY | History | Added to | 33,055 | 917 | 0.0% | 0.0% | 35 | +10,521 | 46.69% | Q1 2026 | May 15, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | History | Reduced | 32,949 | 914 | 0.0% | 0.0% | 36 | -47,445 | -59.02% | Q1 2026 | May 15, 2026 |
| 683 Capital Management, LLC | History | No change | 27,863 | 773 | 0.04% | 0.04% | 37 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| BARCLAYS PLC | History | Added to | 27,050 | 750 | 0.0% | 0.0% | 38 | +2,309 | 9.33% | Q1 2026 | May 14, 2026 |
| WELLINGTON MANAGEMENT GROUP LLP | History | New | 26,496 | 735 | 0.0% | — | 39 | +26,496 | New | Q1 2026 | May 15, 2026 |
| CITADEL ADVISORS LLC | History | Reduced | 25,437 | 705 | 0.0% | 0.0% | 40 | -7,429 | -22.6% | Q1 2026 | May 15, 2026 |
| Squarepoint Ops LLC | History | New | 23,804 | 660 | 0.0% | — | 41 | +23,804 | New | Q1 2026 | May 15, 2026 |
| Trexquant Investment LP | History | Reduced | 22,741 | 631 | 0.0% | 0.01% | 42 | -5,535 | -19.57% | Q1 2026 | May 15, 2026 |
| Connor, Clark & Lunn Investment Management Ltd. | History | Added to | 21,761 | 603 | 0.0% | 0.0% | 43 | +959 | 4.61% | Q1 2026 | May 11, 2026 |
| TWO SIGMA INVESTMENTS, LP | History | New | 20,550 | 570 | 0.0% | — | 44 | +20,550 | New | Q1 2026 | May 15, 2026 |
| ADAR1 Capital Management, LLC | History | Added to | 19,947 | 553 | 0.03% | 0.05% | 45 | +200 | 1.01% | Q1 2026 | May 15, 2026 |
| Palumbo Wealth Management LLC | History | Reduced | 19,643 | 545 | 0.13% | 0.31% | 46 | -17,662 | -47.34% | Q1 2026 | May 12, 2026 |
| FEDERATED HERMES, INC. | History | Reduced | 18,904 | 524 | 0.0% | 0.0% | 47 | -6,490 | -25.56% | Q1 2026 | May 11, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | History | New | 17,723 | 491 | 0.0% | — | 48 | +17,723 | New | Q1 2026 | May 08, 2026 |
| Hudson Bay Capital Management LP | History | Added to | 16,799 | 466 | 0.0% | 0.0% | 49 | +1,749 | 11.62% | Q1 2026 | May 13, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | History | Added to | 15,651 | 434 | 0.0% | 0.0% | 50 | +6,411 | 69.38% | Q1 2026 | May 14, 2026 |
| Susquehanna Portfolio Strategies, LLC | History | Added to | 14,100 | 391 | 0.01% | 0.01% | 51 | +197 | 1.42% | Q1 2026 | May 15, 2026 |
| EntryPoint Capital, LLC | History | New | 12,384 | 343 | 0.1% | — | 52 | +12,384 | New | Q1 2026 | May 14, 2026 |
| Brevan Howard Capital Management LP | History | New | 11,112 | 308 | 0.0% | — | 53 | +11,112 | New | Q1 2026 | May 15, 2026 |
| Jump Financial, LLC | History | New | 10,917 | 302 | 0.0% | — | 55 | +10,917 | New | Q1 2026 | May 14, 2026 |
| BANK OF AMERICA CORP /DE/ | History | Added to | 10,902 | 302 | 0.0% | 0.0% | 54 | +5,792 | 113.35% | Q1 2026 | May 15, 2026 |
| XTX Topco Ltd | History | New | 10,785 | 299 | 0.01% | — | 56 | +10,785 | New | Q1 2026 | May 15, 2026 |
| Engineers Gate Manager LP | History | Reduced | 9,423 | 261 | 0.0% | 0.0% | 57 | -952 | -9.18% | Q1 2026 | May 15, 2026 |
| AMERICAN CENTURY COMPANIES INC | History | New | 9,154 | 254 | 0.0% | — | 58 | +9,154 | New | Q1 2026 | May 15, 2026 |
| CANADA PENSION PLAN INVESTMENT BOARD | History | Added to | 8,500 | 235 | 0.0% | 0.0% | 59 | +5,000 | 142.86% | Q1 2026 | May 15, 2026 |
| OMERS ADMINISTRATION Corp | History | Reduced | 8,100 | 224 | 0.0% | 0.0% | 60 | -7,498 | -48.07% | Q1 2026 | May 15, 2026 |
| Virtus Investment Advisers, LLC | History | Added to | 7,553 | 209 | 0.06% | 0.07% | 61 | +184 | 2.5% | Q1 2026 | May 14, 2026 |
| CITIGROUP INC | History | Added to | 6,483 | 179 | 0.0% | 0.0% | 62 | +4,282 | 194.55% | Q1 2026 | May 11, 2026 |
| Vanguard Global Advisers, LLC | History | New | 4,615 | 128 | 0.0% | — | 63 | +4,615 | New | Q1 2026 | May 08, 2026 |
| Tower Research Capital LLC (TRC) | History | Reduced | 544 | 15 | 0.0% | 0.0% | 64 | -63 | -10.38% | Q1 2026 | May 15, 2026 |
| UBS Group AG | History | Reduced | 364 | 10 | 0.0% | 0.0% | 65 | -9,415 | -96.28% | Q1 2026 | May 05, 2026 |
| NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO | History | No change | 260 | 7 | 0.0% | 0.0% | 66 | 0 | 0.0% | Q1 2026 | May 07, 2026 |
| Aquatic Capital Management LLC | History | New | 220 | 6 | 0.0% | — | 67 | +220 | New | Q1 2026 | May 15, 2026 |
| RHUMBLINE ADVISERS | History | No change | 190 | 5 | 0.0% | 0.0% | 68 | 0 | 0.0% | Q1 2026 | May 12, 2026 |
| BNP PARIBAS FINANCIAL MARKETS | History | Added to | 149 | 4 | 0.0% | — | 69 | +147 | 7350.0% | Q1 2026 | May 12, 2026 |
| Accent Capital Management, LLC | History | New | 142 | 3 | 0.0% | — | 70 | +142 | New | Q1 2026 | May 11, 2026 |
| OSAIC HOLDINGS, INC. | History | No change | 100 | 2 | 0.0% | 0.0% | 71 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| FIFTH THIRD BANCORP | History | New | 57 | 1 | 0.0% | — | 74 | +57 | New | Q1 2026 | May 01, 2026 |
| US BANCORP \DE\ | History | No change | 59 | 1 | 0.0% | 0.0% | 72 | 0 | 0.0% | Q1 2026 | May 14, 2026 |
| EverSource Wealth Advisors, LLC | History | No change | 55 | 1 | 0.0% | 0.0% | 73 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| FRANKLIN RESOURCES INC | History | Closed out | 0 | 0 | — | 0.0% | — | -210,528 | -100.0% | Q1 2026 | May 13, 2026 |
| SUPERSTRING CAPITAL MANAGEMENT LP | History | Closed out | 0 | 0 | — | 1.19% | — | -65,273 | -100.0% | Q1 2026 | May 14, 2026 |
| Ellsworth Advisors, LLC | History | Closed out | 0 | 0 | — | 0.18% | — | -29,735 | -100.0% | Q1 2026 | Apr 16, 2026 |
| Informed Momentum Co LLC | History | Closed out | 0 | 0 | — | 0.11% | — | -29,523 | -100.0% | Q1 2026 | May 13, 2026 |
| SEI INVESTMENTS CO | History | Closed out | 0 | 0 | — | 0.0% | — | -17,745 | -100.0% | Q1 2026 | May 13, 2026 |
| RAYMOND JAMES FINANCIAL INC | History | Closed out | 0 | 0 | — | 0.0% | — | -13,082 | -100.0% | Q1 2026 | May 14, 2026 |
| ACADIAN ASSET MANAGEMENT LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -12,446 | -100.0% | Q1 2026 | May 13, 2026 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | History | Closed out | 0 | 0 | — | 0.0% | — | -6,704 | -100.0% | Q1 2026 | May 15, 2026 |
| Farther Finance Advisors, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -154 | -100.0% | Q1 2026 | Apr 07, 2026 |
| QUADRANT CAPITAL GROUP LLC | History | Closed out | 0 | 0 | — | — | — | -22 | -100.0% | Q1 2026 | May 13, 2026 |
| ROYAL BANK OF CANADA | History | New | 16 | 0 | — | — | — | +16 | New | Q1 2026 | May 15, 2026 |
| Allworth Financial LP | History | Reduced | 29 | 0 | — | 0.0% | — | -3 | -9.38% | Q1 2026 | May 14, 2026 |