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
- −1.58M (−13.1%) vs. Q1 2023
- Total value
- $12.0M
- +$1.91M (+18.9%) 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 | $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 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 |
|---|---|---|---|---|---|
| Royal Bank of Canada | 331 | $0 | 0.00% | +331 | New |
| BNP Paribas Arbitrage, SA | 32 | $37 | 0.00% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 95 | $109 | 0.00% | 00.0% | Unchanged |
| Wells Fargo & Company | 375 | $431 | 0.00% | +38+11.3% | Added |
| Advisor Group Holdings, Inc. | 500 | $575 | 0.00% | 00.0% | Unchanged |
| Baker Avenue Asset Management, LP | 1,000 | $1.15K | 0.00% | 00.0% | Unchanged |
| Rhumbline Advisers | 2,402 | $2.76K | 0.00% | +2,402 | New |
| Engineers Gate Manager LP | 10,071 | $11.6K | 0.00% | +10,071 | New |
| HSBC Holdings PLC | 11,413 | $12.8K | 0.00% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 12,067 | $13.9K | 0.00% | −5,100−29.7% | Reduced |
| RBF Capital, LLC | 14,741 | $15.9K | 0.00% | 00.0% | Unchanged |
| Two Sigma Advisers, LP | 14,900 | $17.1K | 0.00% | −18,200−55.0% | Reduced |
| Bank of New York Mellon Corp | 15,866 | $18.2K | 0.00% | 00.0% | Unchanged |
| Commonwealth Equity Services, LLC | 18,148 | $21.0K | 0.00% | 00.0% | Unchanged |
| Charles Schwab Investment Management Inc | 32,452 | $37.3K | 0.00% | 00.0% | Unchanged |
| Barclays PLC | 35,928 | $41.3K | 0.00% | 00.0% | Unchanged |
| Morgan Stanley | 44,793 | $51.5K | 0.00% | +365+0.8% | Added |
| Franklin Resources Inc | 82,645 | $95.0K | 0.00% | 00.0% | Unchanged |
| Citadel Advisors LLC | 93,648 | $107.7K | 0.00% | −47,305−33.6% | Reduced |
| Northern Trust Corp | 108,116 | $124.3K | 0.00% | +9,716+9.9% | Added |
| Acadian Asset Management LLC | 113,854 | $130.0K | 0.00% | −43,695−27.7% | Reduced |
| FMR LLC | 140,518 | $161.6K | 0.00% | −17,182−10.9% | Reduced |
| State Street Corp | 145,335 | $167.1K | 0.00% | 00.0% | Unchanged |
| Bridgeway Capital Management, LLC | 174,000 | $200.1K | 0.00% | 00.0% | Unchanged |
| Federated Hermes, Inc. | 341,858 | $393.1K | 0.00% | −21,165−5.8% | Reduced |
| Geode Capital Management, LLC | 507,649 | $583.8K | 0.00% | +55,021+12.2% | Added |
| Renaissance Technologies LLC | 698,000 | $803.0K | 0.00% | −67,800−8.9% | Reduced |
| Hudson Bay Capital Management LP | 826,255 | $950.2K | 0.01% | −123,745−13.0% | Reduced |
| BlackRock Inc. | 1,070,324 | $1.23M | 0.00% | −16,239−1.5% | Reduced |
| Millennium Management LLC | 1,446,815 | $1.66M | 0.00% | −3,172−0.2% | Reduced |
| Satter Management Co., L.P. | 2,227,500 | $2.56M | 3.33% | 00.0% | Unchanged |
| Vanguard Group Inc | 2,273,762 | $2.61M | 0.00% | 00.0% | Unchanged |
| 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 |