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, Q4 2023
Institutional positions in Assembly Biosciences, Inc. as of Dec 31, 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
- 45
- +13 vs. Q3 2023
- Shares held
- 8.65M
- −890.5K (−9.3%) vs. Q3 2023
- Total value
- $7.09M
- −$1.35M (−16.0%) vs. Q3 2023
- New holders
- 17
- 7 more added
- Sold out
- 4
- 9 more reduced
Compare with Q3 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, Q4 2023
Shares, value and share of portfolio for each institution holding Assembly Biosciences, Inc.; share changes are against Q3 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Royal Bank of Canada | 546 | $0 | 0.00% | +546 | New |
| Simplex Trading, LLC | 73 | $0 | 0.00% | +73 | New |
| Advisory Services Network, LLC | 1 | $1 | 0.00% | +1 | New |
| Bank of America Corp | 29 | $24 | 0.00% | +29 | New |
| BNP Paribas Arbitrage, SA | 32 | $26 | 0.00% | 00.0% | Unchanged |
| Qube Research & Technologies Ltd | 43 | $35 | 0.00% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 94 | $77 | 0.00% | −61−39.4% | Reduced |
| Wells Fargo & Company | 506 | $415 | 0.00% | +122+31.8% | Added |
| EverSource Wealth Advisors, LLC | 664 | $545 | 0.00% | +664 | New |
| Rhumbline Advisers | 2,402 | $1.97K | 0.00% | 00.0% | Unchanged |
| Clear Street Markets LLC | 5,000 | $4.00K | 0.00% | +5,000 | New |
| Engineers Gate Manager LP | 10,071 | $8.26K | 0.00% | 00.0% | Unchanged |
| Palumbo Wealth Management LLC | 10,075 | $8.26K | 0.00% | +10,075 | New |
| HSBC Holdings PLC | 11,413 | $9.42K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 12,983 | $10.6K | 0.00% | +12,983 | New |
| RBF Capital, LLC | 14,741 | $12.1K | 0.00% | 00.0% | Unchanged |
| Bank of New York Mellon Corp | 15,866 | $13.0K | 0.00% | 00.0% | Unchanged |
| Commonwealth Equity Services, LLC | 16,621 | $14.0K | 0.00% | −1,264−7.1% | Reduced |
| UBS Group AG | 24,164 | $19.8K | 0.00% | +24,164 | New |
| HRT Financial LP | 30,518 | $25.0K | 0.00% | +30,518 | New |
| Morgan Stanley | 30,660 | $25.1K | 0.00% | −14,065−31.4% | Reduced |
| Charles Schwab Investment Management Inc | 32,452 | $26.6K | 0.00% | 00.0% | Unchanged |
| Two Sigma Advisers, LP | 33,200 | $27.2K | 0.00% | +20,200+155.4% | Added |
| Barclays PLC | 35,928 | $29.5K | 0.00% | 00.0% | Unchanged |
| XTX Topco Ltd | 41,453 | $34.0K | 0.01% | +16,216+64.3% | Added |
| Jane Street Group, LLC | 44,898 | $36.8K | 0.00% | +44,898 | New |
| Marquette Asset Management, LLC | 54,464 | $44.7K | 0.01% | +54,464 | New |
| Franklin Resources Inc | 65,392 | $53.6K | 0.00% | 00.0% | Unchanged |
| Acadian Asset Management LLC | 70,420 | $57.0K | 0.00% | −13,050−15.6% | Reduced |
| Susquehanna International Group, LLP | 71,770 | $58.9K | 0.00% | +71,770 | New |
| Amundi | 95,210 | $78.2K | 0.00% | +95,210 | New |
| Citadel Advisors LLC | 124,914 | $102.4K | 0.00% | −13,650−9.9% | Reduced |
| Northern Trust Corp | 131,182 | $107.6K | 0.00% | +23,066+21.3% | Added |
| Two Sigma Investments, LP | 135,048 | $110.8K | 0.00% | +135,048 | New |
| FMR LLC | 136,337 | $111.8K | 0.00% | −575−0.4% | Reduced |
| State Street Corp | 145,335 | $119.2K | 0.00% | 00.0% | Unchanged |
| Bridgeway Capital Management, LLC | 174,000 | $142.7K | 0.00% | 00.0% | Unchanged |
| Acuitas Investments, LLC | 265,585 | $217.8K | 0.11% | +265,585 | New |
| Federated Hermes, Inc. | 304,735 | $249.9K | 0.00% | −37,123−10.9% | Reduced |
| Renaissance Technologies LLC | 430,517 | $353.0K | 0.00% | −63,174−12.8% | Reduced |
| Geode Capital Management, LLC | 612,006 | $502.0K | 0.00% | +126,742+26.1% | Added |
| Anson Funds Management LP | 719,470 | $590.0K | 0.12% | +719,470 | New |
| BlackRock Inc. | 947,984 | $777.4K | 0.00% | −114,703−10.8% | Reduced |
| Millennium Management LLC | 1,450,049 | $1.19M | 0.00% | +40,022+2.8% | Added |
| Vanguard Group Inc | 2,339,088 | $1.92M | 0.00% | +99,092+4.4% | Added |
| Satter Management Co., L.P. | 0 | $0 | 0.00% | −2,227,500−100.0% | Sold out |
| Hudson Bay Capital Management LP | 0 | $0 | 0.00% | −199,789−100.0% | Sold out |
| Baker Avenue Asset Management, LP | 0 | $0 | 0.00% | −1,000−100.0% | Sold out |
| Advisor Group Holdings, Inc. | 0 | $0 | 0.00% | −500−100.0% | Sold out |