Assembly BiosciencesASMB
13F holders, Q4 2025 (December 31)69holders +12
21new positions
8sold out
4famous investors
$34.00avg. 13F price*
At the end of Q4 2025, 69 institutions reported holding Assembly Biosciences Inc. (ASMB) in their 13F filings, up 12 from Q3 2025. 21 opened new positions and 8 sold out. The largest holders were Gilead Sciences, Inc. ($153.2M), Farallon Capital Management, L.L.C. ($41.8M) and Ra Capital Management, L.P. ($34.7M). 4 famous investors held it, including Steve Cohen (0.0% of Point72 Asset Management's portfolio), Israel Englander (0.0% of Millennium Management's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Assembly Biosciences Inc.
- CUSIP
- 045396207
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 21 | $45.2M |
| Exits | 8 | $14.5M |
All 13F filers, Q3 2025 → Q4 2025: 2,221,627 shares bought and 1,037,609 shares sold, net +1,184,018 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 69 holders
| Gilead Sciences, Inc. | 7.92% | No change | 4,505,391 | $153.2M |
| Farallon Capital Management, L.L.C. | 0.22% | No change | 1,227,590 | $41.8M |
| Ra Capital Management, L.P. | 0.36% | No change | 1,020,410 | $34.7M |
| Commodore Capital LP | 2.26% | No change | 1,000,000 | $34.0M |
| Janus Henderson Group PLC | 0.01% | Add +11.3% | 837,925 | $28.5M |
| Paradigm Biocapital Advisors LP | 0.61% | New | 665,251 | $22.6M |
| Point72 Asset Management | 0.03% | Add +102.9% | 600,609 | $20.4M |
| Vanguard Group Inc. | 0.00% | Add +14.1% | 572,898 | $19.5M |
| Blackstone Inc. | 0.05% | Reduce -28.8% | 318,754 | $10.8M |
| Parkman Healthcare Partners LLC | 0.81% | Reduce -0.7% | 249,357 | $8.5M |
| Franklin Resources Inc. | 0.00% | Reduce -11.6% | 210,528 | $7.2M |
| BlackRock, Inc. | 0.00% | Add +13.0% | 192,296 | $6.5M |
| B Group, Inc. | 4.43% | No change | 175,706 | $6.0M |
| Adage Capital Partners Gp, L.L.C. | 0.01% | New | 161,000 | $5.5M |
| Eversept Partners, LP | 0.30% | New | 159,676 | $5.4M |
| Stempoint Capital LP | 0.91% | Add +137.0% | 156,728 | $5.3M |
| Geode Capital Management, LLC | 0.00% | Add +0.9% | 131,307 | $4.5M |
| Marshall Wace, LLP | 0.00% | Add +51.5% | 129,075 | $4.4M |
| Patient Square Capital LP | 0.92% | Reduce -6.0% | 127,000 | $4.3M |
| Caption Management, LLC | 0.16% | New | 106,591 | $3.6M |
| Millennium Management | 0.00% | Add +354.6% | 98,221 | $3.3M |
| Susquehanna International Group, LLP | 0.00% | Reduce -38.6% | 80,394 | $2.7M |
| Seven Fleet Capital Management LP | 1.70% | — | 73,762 | $2.5M |
| Superstring Capital Management LP | 1.19% | New | 65,273 | $2.2M |
| Schonfeld Strategic Advisors LLC | 0.01% | Reduce -55.5% | 54,235 | $1.8M |
| Jane Street Group, LLC | 0.00% | Add +58.8% | 53,702 | $1.8M |
| State Street Corp. | 0.00% | Add +18.2% | 52,989 | $1.8M |
| JPMorgan Chase & Co. | 0.00% | Add +687885.7% | 48,159 | $1.6M |
| Qube Research & Technologies Ltd | 0.00% | Add +282.5% | 42,185 | $1.4M |
| Northern Trust Corp. | 0.00% | Add +3.2% | 41,227 | $1.4M |
| Monimus Capital Management, LP | 0.86% | Reduce -8.9% | 38,301 | $1.3M |
| Arrowstreet Capital, Limited Partnership | 0.00% | New | 37,812 | $1.3M |
| Palumbo Wealth Management LLC | 0.31% | Add +7.2% | 37,305 | $1.3M |
| Goldman Sachs Group Inc. | 0.00% | Add +97.1% | 34,794 | $1.2M |
| Citadel Advisors | 0.00% | Reduce -39.0% | 32,866 | $1.1M |
| Informed Momentum Co LLC | 0.11% | Add +1.6% | 29,523 | $1.0M |
| Trexquant Investment LP | 0.01% | Add +125.7% | 28,276 | $962K |
| 683 Capital Management, LLC | 0.08% | New | 27,863 | $948K |
| Ellsworth Advisors, LLC | 0.18% | Reduce -0.7% | 29,735 | $889K |
| Federated Hermes, Inc. | 0.00% | No change | 25,394 | $864K |
| Barclays PLC | 0.00% | Add +524.6% | 24,741 | $841K |
| Morgan Stanley | 0.00% | Add +538.9% | 22,534 | $766K |
| Connor, Clark & Lunn Investment Management Ltd. | 0.00% | Add +86.5% | 20,802 | $707K |
| ADAR1 Capital Management, LLC | 0.05% | Add +4.2% | 19,747 | $672K |
| Sei Investments Co. | 0.00% | New | 17,745 | $604K |
| OMERS ADMINISTRATION Corp | 0.00% | New | 15,598 | $530K |
| Hudson Bay Capital Management LP | 0.00% | New | 15,050 | $512K |
| Susquehanna Portfolio Strategies, LLC | 0.01% | New | 13,903 | $473K |
| Raymond James Financial Inc. | 0.00% | New | 13,082 | $445K |
| Gsa Capital Partners LLP | 0.04% | Add +2.3% | 12,699 | $432K |
| Acadian Asset Management LLC | 0.00% | Reduce -46.6% | 12,446 | $422K |
| Engineers Gate Manager LP | 0.00% | New | 10,375 | $353K |
| UBS Group AG | 0.00% | Reduce -38.0% | 9,779 | $333K |
| Renaissance Technologies | 0.00% | Reduce -94.0% | 9,240 | $314K |
| Virtus Investment Advisers, LLC | 0.07% | New | 7,369 | $251K |
| Charles Schwab Investment Management Inc. | 0.00% | New | 6,704 | $228K |
| Bank of America Corp. | 0.00% | Add +51.6% | 5,110 | $174K |
| Canada Pension Plan Investment Board | 0.00% | New | 3,500 | $119K |
| Citigroup Inc. | 0.00% | New | 2,201 | $75K |
| Tower Research Capital LLC (TRC) | 0.00% | New | 607 | $21K |
| Northwestern Mutual Wealth Management Co. | 0.00% | No change | 260 | $9K |
| Rhumbline Advisers | 0.00% | No change | 190 | $6K |
| Farther Finance Advisors, LLC | 0.00% | New | 154 | $5K |
| Osaic Holdings, Inc. | 0.00% | No change | 100 | $3K |
| US Bancorp \de | 0.00% | New | 59 | $2K |
| EverSource Wealth Advisors, LLC | 0.00% | No change | 55 | $2K |
| Allworth Financial LP | 0.00% | New | 32 | $1K |
| Quadrant Capital Group LLC | 0.00% | No change | 22 | $749 |
| BNP Paribas Financial Markets | 0.00% | Reduce -96.5% | 2 | $68 |
"% of holder's portfolio" is ASMB's weight in each manager's 13F, not the share of Assembly Biosciences Inc. the manager owns.