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, Q1 2024
Institutional positions in Assembly Biosciences, Inc. as of Mar 31, 2024. 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
- 24
- −21 vs. Q4 2023
- Shares held
- 652.2K
- −8.03M (−92.5%) vs. Q4 2023
- Total value
- $8.68M
- +$1.56M (+21.9%) vs. Q4 2023
- New holders
- 0
- 0 more added
- Sold out
- 21
- 24 more reduced
Compare with Q4 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, Q1 2024
Shares, value and share of portfolio for each institution holding Assembly Biosciences, Inc.; share changes are against Q4 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Vanguard Group Inc | 196,368 | $2.61M | 0.00% | −2,142,720−91.6% | Reduced |
| Millennium Management LLC | 124,922 | $1.66M | 0.00% | −1,325,127−91.4% | Reduced |
| BlackRock Inc. | 77,961 | $1.04M | 0.00% | −870,023−91.8% | Reduced |
| Geode Capital Management, LLC | 52,197 | $694.4K | 0.00% | −559,809−91.5% | Reduced |
| Acuitas Investments, LLC | 49,732 | $661.4K | 0.33% | −215,853−81.3% | Reduced |
| Renaissance Technologies LLC | 39,460 | $525.0K | 0.00% | −391,057−90.8% | Reduced |
| Federated Hermes, Inc. | 25,394 | $337.7K | 0.00% | −279,341−91.7% | Reduced |
| Bridgeway Capital Management, LLC | 14,500 | $192.8K | 0.00% | −159,500−91.7% | Reduced |
| State Street Corp | 12,109 | $161.1K | 0.00% | −133,226−91.7% | Reduced |
| FMR LLC | 11,318 | $150.5K | 0.00% | −125,019−91.7% | Reduced |
| Northern Trust Corp | 10,559 | $140.4K | 0.00% | −120,623−92.0% | Reduced |
| Marquette Asset Management, LLC | 9,016 | $119.9K | 0.02% | −45,448−83.4% | Reduced |
| Amundi | 7,934 | $105.8K | 0.00% | −87,276−91.7% | Reduced |
| Morgan Stanley | 7,416 | $98.6K | 0.00% | −53,904−87.9% | Reduced |
| Acadian Asset Management LLC | 5,868 | $78.0K | 0.00% | −64,552−91.7% | Reduced |
| UBS Group AG | 3,235 | $43.0K | 0.00% | −20,929−86.6% | Reduced |
| Barclays PLC | 2,994 | $39.8K | 0.00% | −32,934−91.7% | Reduced |
| Tower Research Capital LLC (TRC) | 857 | $11.4K | 0.00% | −12,126−93.4% | Reduced |
| Rhumbline Advisers | 199 | $2.65K | 0.00% | −2,203−91.7% | Reduced |
| Royal Bank of Canada | 79 | $1.00K | 0.00% | −467−85.5% | Reduced |
| EverSource Wealth Advisors, LLC | 55 | $686 | 0.00% | −609−91.7% | Reduced |
| Wells Fargo & Company | 44 | $585 | 0.00% | −462−91.3% | Reduced |
| JPMorgan Chase & Co | 14 | $186 | 0.00% | −174−92.6% | Reduced |
| Qube Research & Technologies Ltd | 3 | $40 | 0.00% | −40−93.0% | Reduced |
| Anson Funds Management LP | 0 | $0 | 0.00% | −719,470−100.0% | Sold out |
| Two Sigma Investments, LP | 0 | $0 | 0.00% | −135,048−100.0% | Sold out |
| Citadel Advisors LLC | 0 | $0 | 0.00% | −124,914−100.0% | Sold out |
| Susquehanna International Group, LLP | 0 | $0 | 0.00% | −71,770−100.0% | Sold out |
| Franklin Resources Inc | 0 | $0 | 0.00% | −65,392−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −44,898−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −41,453−100.0% | Sold out |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −33,200−100.0% | Sold out |
| Charles Schwab Investment Management Inc | 0 | $0 | 0.00% | −32,452−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −30,518−100.0% | Sold out |
| Commonwealth Equity Services, LLC | 0 | $0 | 0.00% | −16,621−100.0% | Sold out |
| Bank of New York Mellon Corp | 0 | $0 | 0.00% | −15,866−100.0% | Sold out |
| RBF Capital, LLC | 0 | $0 | 0.00% | −14,741−100.0% | Sold out |
| HSBC Holdings PLC | 0 | $0 | 0.00% | −11,413−100.0% | Sold out |
| Palumbo Wealth Management LLC | 0 | $0 | 0.00% | −10,075−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −10,071−100.0% | Sold out |
| Clear Street Markets LLC | 0 | $0 | 0.00% | −5,000−100.0% | Sold out |
| BNP Paribas Arbitrage, SA | 0 | $0 | 0.00% | −32−100.0% | Sold out |
| Bank of America Corp | 0 | $0 | 0.00% | −29−100.0% | Sold out |
| Advisory Services Network, LLC | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −73−100.0% | Sold out |