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, Q3 2023
Institutional positions in Assembly Biosciences, Inc. as of Sep 30, 2023. 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
- 32
- 0 vs. Q2 2023
- Shares held
- 9.54M
- −927.0K (−8.9%) vs. Q2 2023
- Total value
- $8.44M
- −$3.59M (−29.8%) vs. Q2 2023
- New holders
- 2
- 3 more added
- Sold out
- 2
- 12 more reduced
Compare with Q2 2023: 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, Q3 2023
Shares, value and share of portfolio for each institution holding Assembly Biosciences, Inc.; share changes are against Q2 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BNP Paribas Arbitrage, SA | 32 | $28 | 0.00% | 00.0% | Unchanged |
| Qube Research & Technologies Ltd | 43 | $38 | 0.00% | +43 | New |
| JPMorgan Chase & Co | 155 | $137 | 0.00% | +60+63.2% | Added |
| Wells Fargo & Company | 384 | $340 | 0.00% | +9+2.4% | Added |
| Advisor Group Holdings, Inc. | 500 | $443 | 0.00% | 00.0% | Unchanged |
| Baker Avenue Asset Management, LP | 1,000 | $885 | 0.00% | 00.0% | Unchanged |
| Rhumbline Advisers | 2,402 | $2.12K | 0.00% | 00.0% | Unchanged |
| Engineers Gate Manager LP | 10,071 | $8.91K | 0.00% | 00.0% | Unchanged |
| HSBC Holdings PLC | 11,413 | $10.2K | 0.00% | 00.0% | Unchanged |
| Two Sigma Advisers, LP | 13,000 | $11.5K | 0.00% | −1,900−12.8% | Reduced |
| RBF Capital, LLC | 14,741 | $13.0K | 0.00% | 00.0% | Unchanged |
| Bank of New York Mellon Corp | 15,866 | $14.0K | 0.00% | 00.0% | Unchanged |
| Commonwealth Equity Services, LLC | 17,885 | $16.0K | 0.00% | −263−1.4% | Reduced |
| XTX Topco Ltd | 25,237 | $22.3K | 0.00% | +25,237 | New |
| Charles Schwab Investment Management Inc | 32,452 | $28.7K | 0.00% | 00.0% | Unchanged |
| Barclays PLC | 35,928 | $31.8K | 0.00% | 00.0% | Unchanged |
| Morgan Stanley | 44,725 | $39.6K | 0.00% | −68−0.2% | Reduced |
| Franklin Resources Inc | 65,392 | $57.9K | 0.00% | −17,253−20.9% | Reduced |
| Acadian Asset Management LLC | 83,470 | $73.0K | 0.00% | −30,384−26.7% | Reduced |
| Northern Trust Corp | 108,116 | $95.7K | 0.00% | 00.0% | Unchanged |
| FMR LLC | 136,912 | $121.2K | 0.00% | −3,606−2.6% | Reduced |
| Citadel Advisors LLC | 138,564 | $122.6K | 0.00% | +44,916+48.0% | Added |
| State Street Corp | 145,335 | $128.6K | 0.00% | 00.0% | Unchanged |
| Bridgeway Capital Management, LLC | 174,000 | $154.0K | 0.00% | 00.0% | Unchanged |
| Hudson Bay Capital Management LP | 199,789 | $176.8K | 0.00% | −626,466−75.8% | Reduced |
| Federated Hermes, Inc. | 341,858 | $302.5K | 0.00% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 485,264 | $429.6K | 0.00% | −22,385−4.4% | Reduced |
| Renaissance Technologies LLC | 493,691 | $437.0K | 0.00% | −204,309−29.3% | Reduced |
| BlackRock Inc. | 1,062,687 | $940.5K | 0.00% | −7,637−0.7% | Reduced |
| Millennium Management LLC | 1,410,027 | $1.25M | 0.00% | −36,788−2.5% | Reduced |
| Satter Management Co., L.P. | 2,227,500 | $1.97M | 3.37% | 00.0% | Unchanged |
| Vanguard Group Inc | 2,239,996 | $1.98M | 0.00% | −33,766−1.5% | Reduced |
| Susquehanna International Group, LLP | 0 | $0 | 0.00% | −12,067−100.0% | Sold out |
| Royal Bank of Canada | 0 | $0 | 0.00% | −331−100.0% | Sold out |