ASMB Assembly Biosciences, Inc.
Assembly Biosciences, Inc. (ASMB) Institutional Ownership
What the institutions did with ASMB last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
Sign in or subscribeLargest holders
| Manager | Shares | % of reported |
|---|---|---|
| GILEAD SCIENCES, INC. | 5.0M | 26.5% |
| FARALLON CAPITAL MANAGEMENT LLC | 1.6M | 8.6% |
| Paradigm Biocapital Advisors LP | 1.6M | 8.3% |
| Commodore Capital LP | 1.4M | 7.5% |
| RA CAPITAL MANAGEMENT, L.P. | 1.0M | 5.4% |
| Jupiter Topco LLC | 849.3K | 4.5% |
| BlackRock, Inc. | 766.8K | 4.1% |
| Parkman Healthcare Partners LLC | 721.2K | 3.8% |
| VANGUARD CAPITAL MANAGEMENT LLC | 558.9K | 3.0% |
| Point72 Asset Management, L.P. | 460.6K | 2.5% |
| Seven Fleet Capital Management LP | 433.1K | 2.3% |
| MILLENNIUM MANAGEMENT LLC | 298.8K | 1.6% |
| GEODE CAPITAL MANAGEMENT, LLC | 280.4K | 1.5% |
| Schonfeld Strategic Advisors LLC | 242.2K | 1.3% |
| AMERIPRISE FINANCIAL INC | 230.0K | 1.2% |
| DV EQUITIES, LLC | 226.4K | 1.2% |
| Aberdeen Group plc | 207.0K | 1.1% |
| Affinity Asset Advisors, LLC | 190.0K | 1.0% |
| B Group, Inc. | 175.7K | 0.9% |
| STATE STREET CORP | 171.9K | 0.9% |
| STEMPOINT CAPITAL LP | 170.4K | 0.9% |
| Squadron Capital Management LLC | 160.0K | 0.9% |
| Woodline Partners LP | 150.8K | 0.8% |
| Driehaus Capital Management LLC | 150.0K | 0.8% |
| Ally Bridge Group (NY) LLC | 140.0K | 0.7% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| Paradigm Biocapital Advisors LP | Increased | 665.3K | 1.6M | +888.5K |
| BlackRock, Inc. | Increased | 202.7K | 766.8K | +564.1K |
| GILEAD SCIENCES, INC. | Increased | 4.5M | 5.0M | +471.7K |
| Commodore Capital LP | Increased | 1.0M | 1.4M | +415.0K |
| Seven Fleet Capital Management LP | Increased | 56.1K | 433.1K | +377.0K |
| FARALLON CAPITAL MANAGEMENT LLC | Increased | 1.2M | 1.6M | +377.0K |
| Parkman Healthcare Partners LLC | Increased | 411.2K | 721.2K | +310.0K |
| Blackstone Inc. | Sold Out | 296.9K | 0 | -296.9K |
| AMERIPRISE FINANCIAL INC | New | 0 | 230.0K | +230.0K |
| Aberdeen Group plc | New | 0 | 207.0K | +207.0K |
| STEMPOINT CAPITAL LP | Reduced | 370.9K | 170.4K | -200.5K |
| Affinity Asset Advisors, LLC | New | 0 | 190.0K | +190.0K |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | Sold Out | 161.0K | 0 | -161.0K |
| Squadron Capital Management LLC | New | 0 | 160.0K | +160.0K |
| Woodline Partners LP | New | 0 | 150.8K | +150.8K |
| Driehaus Capital Management LLC | New | 0 | 150.0K | +150.0K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 133.0K | 280.4K | +147.5K |
| MARSHALL WACE, LLP | Reduced | 163.4K | 17.7K | -145.7K |
| Ally Bridge Group (NY) LLC | New | 0 | 140.0K | +140.0K |
| Patient Square Capital LP | Sold Out | 136.3K | 0 | -136.3K |
| Schonfeld Strategic Advisors LLC | Increased | 120.5K | 242.2K | +121.7K |
| Point72 Asset Management, L.P. | Increased | 344.1K | 460.6K | +116.5K |
| STATE STREET CORP | Increased | 56.7K | 171.9K | +115.2K |
| FRANKLIN RESOURCES INC | New | 0 | 113.2K | +113.2K |
| GOLDMAN SACHS GROUP INC | Increased | 36.2K | 137.8K | +101.6K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.