Assembly Biosciences, Inc.
ASMB- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001426800
No open-market purchases or sales by Assembly Biosciences, Inc. insiders were filed in the last 90 days; 92 institutions reported holding it in 13F filings for Q2 2026, worth $514.8M in total; no superinvestor holds it.
13F holders, Q2 2021
Institutional positions in Assembly Biosciences, Inc. as of Jun 30, 2021. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 91
- −16 vs. Q1 2021
- Shares held
- 27.1M
- −1.65M (−5.7%) vs. Q1 2021
- Total value
- $105.1M
- −$28.5M (−21.3%) vs. Q1 2021
- New holders
- 14
- 30 more added
- Sold out
- 30
- 36 more reduced
Compare with Q1 2021: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting ASMB on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 92 | $514.8M |
| Q1 2026 | 75 | $376.4M |
| Q4 2025 | 69 | $466.7M |
| Q3 2025 | 57 | $324.9M |
| Q2 2025 | 33 | $57.0M |
| Q1 2025 | 37 | $30.4M |
| Q4 2024 | 35 | $50.3M |
| Q3 2024 | 30 | $15.5M |
| Q2 2024 | 27 | $16.1M |
| Q1 2024 | 24 | $8.61M |
| Q4 2023 | 45 | $7.09M |
| Q3 2023 | 32 | $8.44M |
| Q2 2023 | 32 | $12.0M |
| Q1 2023 | 38 | $10.1M |
| Q4 2022 | 40 | $18.4M |
| Q3 2022 | 50 | $27.2M |
| Q2 2022 | 54 | $36.1M |
| Q1 2022 | 54 | $39.3M |
| Q4 2021 | 62 | $53.8M |
| Q3 2021 | 65 | $79.0M |
| Q2 2021 | 91 | $105.1M |
| Q1 2021 | 107 | $133.6M |
Institutions, Q2 2021
Shares, value and share of portfolio for each institution holding Assembly Biosciences, Inc.; share changes are against Q1 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| California State Teachers Retirement System | 0 | $0 | 0.00% | −46,380−100.0% | Sold out |
| Rhumbline Advisers | 0 | $0 | 0.00% | −43,113−100.0% | Sold out |
| STRS Ohio | 0 | $0 | 0.00% | −36,400−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −34,600−100.0% | Sold out |
| Walleye Trading LLC | 0 | $0 | 0.00% | −33,266−100.0% | Sold out |
| Alliancebernstein L.P. | 0 | $0 | 0.00% | −25,600−100.0% | Sold out |
| Credit Suisse AG | 0 | $0 | 0.00% | −25,129−100.0% | Sold out |
| Deutsche Bank AG | 0 | $0 | 0.00% | −20,691−100.0% | Sold out |
| Jupiter Asset Management Ltd | 0 | $0 | 0.00% | −18,235−100.0% | Sold out |
| American International Group, Inc. | 0 | $0 | 0.00% | −17,886−100.0% | Sold out |
| Dynamic Technology Lab Private Ltd | 0 | $0 | 0.00% | −17,166−100.0% | Sold out |
| State Board of Administration of Florida Retirement System | 0 | $0 | 0.00% | −16,017−100.0% | Sold out |
| Voya Investment Management LLC | 0 | $0 | 0.00% | −16,114−100.0% | Sold out |
| Los Angeles Capital Management LLC | 0 | $0 | 0.00% | −13,855−100.0% | Sold out |
| ProShare Advisors LLC | 0 | $0 | 0.00% | −13,472−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −11,450−100.0% | Sold out |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0 | $0 | 0.00% | −4,677−100.0% | Sold out |
| Great West Life Assurance Co | 0 | $0 | 0.00% | −3,033−100.0% | Sold out |
| Public Employees Retirement System of Ohio | 0 | $0 | 0.00% | −2,761−100.0% | Sold out |
| Ameritas Investment Partners, Inc. | 0 | $0 | 0.00% | −2,472−100.0% | Sold out |
| Bank of Montreal | 0 | $0 | 0.00% | −914−100.0% | Sold out |