Assembly Biosciences Inc (ASMB)
Healthcare
Biotechnology
25.10 $
-3.6%
vs. previous close
Closing price · As of: 31. Jul 2026
Who owns Assembly Biosciences Inc (ASMB)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 44.4% of the shares are freely tradable; institutional investors hold 48.4%.
Ownership Structure
Institutional ownership
Share of the stock held by institutional investors (funds, banks, insurers) according to regulatory filings.
48.4%
Insiders
Share of the stock held by the executives, founders and major shareholders of the company itself.
28.4%
Float
Share of stock freely tradable on the market — not locked up in the hands of founders, insiders, or major shareholders.
44.4%
Short % of float
Shares sold short as a percentage of the freely tradable float — high values signal many bets on falling prices.
12.6%
Shares Outstanding
Total number of shares issued. Price times share count gives market cap.
20Mio.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Farallon Capital Management, L.L.C. | 6.19 | 1,227,590 | +0.0 | 03/31/2026 |
| RA Capital Management, LLC | 5.15 | 1,020,410 | +0.0 | 03/31/2026 |
| COMMODORE CAPITAL LP | 5.05 | 1,000,000 | +0.0 | 03/31/2026 |
| HHG PLC | 4.29 | 849,309 | +1.4 | 03/31/2026 |
| Paradigm Biocapital Advisors LP | 3.36 | 665,251 | +0.0 | 03/31/2026 |
| Vanguard Group Inc | 2.89 | 572,898 | +14.1 | 12/31/2025 |
| Vanguard Capital Management, LLC | 2.47 | 490,447 | +0.0 | 03/31/2026 |
| Parkman Healthcare Partners LLC | 2.08 | 411,227 | +64.9 | 03/31/2026 |
| StemPoint Capital LP | 1.87 | 370,870 | +136.6 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Vanguard Total Stock Mkt Idx Inv | 1.76 | 347,884 | +0.0 | 04/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Data as of: July 31, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.