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 2023
Institutional positions in Assembly Biosciences, Inc. as of Jun 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
- −5 vs. Q1 2023
- Shares held
- 10.5M
- −2.68M (−20.4%) vs. Q1 2023
- Total value
- $12.0M
- +$982.7K (+8.9%) vs. Q1 2023
- New holders
- 3
- 4 more added
- Sold out
- 8
- 10 more reduced
1 institution that held it in Q1 2023 haven't filed for Q2 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 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 | $381.5M |
| Q4 2025 | 69 | $466.7M |
| Q3 2025 | 57 | $324.9M |
| Q2 2025 | 33 | $57.1M |
| Q1 2025 | 37 | $30.4M |
| Q4 2024 | 35 | $50.3M |
| Q3 2024 | 30 | $15.6M |
| Q2 2024 | 27 | $16.1M |
| Q1 2024 | 24 | $8.68M |
| Q4 2023 | 45 | $7.12M |
| Q3 2023 | 32 | $8.62M |
| Q2 2023 | 32 | $12.0M |
| Q1 2023 | 38 | $11.1M |
| Q4 2022 | 40 | $18.4M |
| Q3 2022 | 50 | $27.2M |
| Q2 2022 | 54 | $36.1M |
| Q1 2022 | 54 | $39.3M |
| Q4 2021 | 62 | $54.3M |
| Q3 2021 | 65 | $79.0M |
| Q2 2021 | 91 | $105.1M |
| Q1 2021 | 107 | $133.6M |
Institutions, Q2 2023
Shares, value and share of portfolio for each institution holding Assembly Biosciences, Inc.; share changes are against Q1 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Vanguard Group Inc | 2,273,762 | $2.61M | 0.00% | 00.0% | Unchanged |
| Satter Management Co., L.P. | 2,227,500 | $2.56M | 3.33% | 00.0% | Unchanged |
| Millennium Management LLC | 1,446,815 | $1.66M | 0.00% | −3,172−0.2% | Reduced |
| BlackRock Inc. | 1,070,324 | $1.23M | 0.00% | −16,239−1.5% | Reduced |
| Hudson Bay Capital Management LP | 826,255 | $950.2K | 0.01% | −1,073,745−56.5% | Reduced |
| Renaissance Technologies LLC | 698,000 | $803.0K | 0.00% | −67,800−8.9% | Reduced |
| Geode Capital Management, LLC | 507,649 | $583.8K | 0.00% | +55,021+12.2% | Added |
| Federated Hermes, Inc. | 341,858 | $393.1K | 0.00% | −21,165−5.8% | Reduced |
| Bridgeway Capital Management, LLC | 174,000 | $200.1K | 0.00% | 00.0% | Unchanged |
| State Street Corp | 145,335 | $167.1K | 0.00% | 00.0% | Unchanged |
| FMR LLC | 140,518 | $161.6K | 0.00% | −174,882−55.4% | Reduced |
| Acadian Asset Management LLC | 113,854 | $130.0K | 0.00% | −43,695−27.7% | Reduced |
| Northern Trust Corp | 108,116 | $124.3K | 0.00% | +9,716+9.9% | Added |
| Citadel Advisors LLC | 93,648 | $107.7K | 0.00% | −47,305−33.6% | Reduced |
| Franklin Resources Inc | 82,645 | $95.0K | 0.00% | 00.0% | Unchanged |
| Morgan Stanley | 44,793 | $51.5K | 0.00% | +365+0.8% | Added |
| Barclays PLC | 35,928 | $41.3K | 0.00% | 00.0% | Unchanged |
| Charles Schwab Investment Management Inc | 32,452 | $37.3K | 0.00% | 00.0% | Unchanged |
| Commonwealth Equity Services, LLC | 18,148 | $21.0K | 0.00% | 00.0% | Unchanged |
| Bank of New York Mellon Corp | 15,866 | $18.2K | 0.00% | 00.0% | Unchanged |
| Two Sigma Advisers, LP | 14,900 | $17.1K | 0.00% | −18,200−55.0% | Reduced |
| RBF Capital, LLC | 14,741 | $15.9K | 0.00% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 12,067 | $13.9K | 0.00% | −5,100−29.7% | Reduced |
| HSBC Holdings PLC | 11,413 | $12.8K | 0.00% | 00.0% | Unchanged |
| Engineers Gate Manager LP | 10,071 | $11.6K | 0.00% | +10,071 | New |
| Rhumbline Advisers | 2,402 | $2.76K | 0.00% | +2,402 | New |
| Baker Avenue Asset Management, LP | 1,000 | $1.15K | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 500 | $575 | 0.00% | 00.0% | Unchanged |
| Wells Fargo & Company | 375 | $431 | 0.00% | +38+11.3% | Added |
| JPMorgan Chase & Co | 95 | $109 | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 32 | $37 | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 331 | $0 | 0.00% | +331 | New |
| Platinum Investment Management Ltd | 0 | $0 | 0.00% | −890,736−100.0% | Sold out |
| Dimensional Fund Advisors LP | 0 | $0 | 0.00% | −284,185−100.0% | Sold out |
| Two Sigma Investments, LP | 0 | $0 | 0.00% | −38,303−100.0% | Sold out |
| Tower Research Capital LLC (TRC) | 0 | $0 | 0.00% | −31,160−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −24,305−100.0% | Sold out |
| Virtu Financial LLC | 0 | $0 | 0.00% | −11,924−100.0% | Sold out |
| UBS Group AG | 0 | $0 | 0.00% | −10,601−100.0% | Sold out |
| Advisory Services Network, LLC | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| ETF Managers Group, LLC | – | – | – | – | Not filed |