86 institutions reported holding $381.5M of ASSEMBLY BIOSCIENCES INC (ASMB) in SEC 13F filings for 2026-03-31. Largest institutional holders: GILEAD SCIENCES, INC. ($125.0M), FARALLON CAPITAL MANAGEMENT LLC ($34.1M), RA CAPITAL MANAGEMENT, L.P. ($28.3M), Commodore Capital LP ($27.8M), JANUS HENDERSON GROUP PLC ($23.5M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | GILEAD SCIENCES, INC. | $125.0M | 4.5M | Hold |
| 2 | FARALLON CAPITAL MANAGEMENT LLC | $34.1M | 1.2M | Hold |
| 3 | RA CAPITAL MANAGEMENT, L.P. | $28.3M | 1.0M | Hold |
| 4 | Commodore Capital LP | $27.8M | 1.0M | Hold |
| 5 | JANUS HENDERSON GROUP PLC | $23.5M | 849,309 | Added |
| 6 | Paradigm Biocapital Advisors LP | $18.5M | 665,251 | Hold |
| 7 | VANGUARD CAPITAL MANAGEMENT LLC | $13.6M | 490,447 | New |
| 8 | Parkman Healthcare Partners LLC | $11.4M | 411,227 | Added |
| 9 | STEMPOINT CAPITAL LP | $10.3M | 370,870 | Added |
| 10 | Point72 Asset Management, L.P. | $9.5M | 344,105 | Trimmed |
| 11 | Blackstone Inc. | $8.2M | 296,855 | Trimmed |
| 12 | MILLENNIUM MANAGEMENT LLC | $6.5M | 233,650 | Added |
| 13 | BlackRock, Inc. | $5.6M | 202,743 | Added |
| 14 | B Group, Inc. | $4.9M | 175,706 | Hold |
| 15 | MARSHALL WACE, LLP | $4.5M | 163,400 | Added |
| 16 | ADAGE CAPITAL PARTNERS GP, L.L.C. | $4.5M | 161,000 | Hold |
| 17 | Patient Square Capital LP | $3.8M | 136,315 | Added |
| 18 | GEODE CAPITAL MANAGEMENT, LLC | $3.7M | 132,971 | Added |
| 19 | Schonfeld Strategic Advisors LLC | $3.3M | 120,500 | Added |
| 20 | Caption Management, LLC | $2.3M | 81,841 | Trimmed |
| 21 | HighVista Strategies LLC | $2.1M | 74,735 | New |
| 22 | VANGUARD FIDUCIARY TRUST CO | $2.0M | 71,606 | New |
| 23 | Qube Research & Technologies Ltd | $1.9M | 69,256 | Added |
| 24 | STATE STREET CORP | $1.6M | 56,689 | Added |
| 25 | Seven Fleet Capital Management LP | $1.6M | 56,147 | Trimmed |
Source: SEC Form 13F filings · as of 2026-03-31