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 2022
Institutional positions in Assembly Biosciences, Inc. as of Dec 31, 2022. 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
- 40
- −10 vs. Q3 2022
- Shares held
- 14.2M
- −2.40M (−14.5%) vs. Q3 2022
- Total value
- $18.4M
- −$8.77M (−32.2%) vs. Q3 2022
- New holders
- 2
- 10 more added
- Sold out
- 12
- 20 more reduced
Compare with Q3 2022: 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, Q4 2022
Shares, value and share of portfolio for each institution holding Assembly Biosciences, Inc.; share changes are against Q3 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Satter Management Co., L.P. | 2,227,500 | $2.90M | 3.33% | 00.0% | Unchanged |
| Vanguard Group Inc | 2,192,962 | $2.85M | 0.00% | −9,830−0.4% | Reduced |
| Deep Track Capital, LP | 1,833,437 | $2.38M | 0.10% | −1,166,563−38.9% | Reduced |
| Millennium Management LLC | 1,497,606 | $1.95M | 0.00% | −49,290−3.2% | Reduced |
| BlackRock Inc. | 1,135,106 | $1.48M | 0.00% | +1,222+0.1% | Added |
| Platinum Investment Management Ltd | 1,094,770 | $1.42M | 0.05% | −355,558−24.5% | Reduced |
| Hudson Bay Capital Management LP | 1,025,000 | $1.33M | 0.02% | −50,000−4.7% | Reduced |
| Renaissance Technologies LLC | 503,384 | $654.0K | 0.00% | +221,184+78.4% | Added |
| Geode Capital Management, LLC | 452,628 | $588.0K | 0.00% | −911−0.2% | Reduced |
| Federated Hermes, Inc. | 373,636 | $485.7K | 0.00% | −290.0% | Reduced |
| Dimensional Fund Advisors LP | 322,688 | $419.0K | 0.00% | −7,471−2.3% | Reduced |
| Acadian Asset Management LLC | 257,101 | $332.0K | 0.00% | −32,647−11.3% | Reduced |
| Bridgeway Capital Management, LLC | 188,200 | $244.7K | 0.01% | 00.0% | Unchanged |
| FMR LLC | 146,466 | $190.4K | 0.00% | +10,129+7.4% | Added |
| State Street Corp | 145,335 | $188.9K | 0.00% | 00.0% | Unchanged |
| Citadel Advisors LLC | 108,753 | $141.4K | 0.00% | +81,371+297.2% | Added |
| Northern Trust Corp | 91,472 | $118.9K | 0.00% | −332−0.4% | Reduced |
| Franklin Resources Inc | 82,645 | $107.4K | 0.00% | +44,481+116.6% | Added |
| Jane Street Group, LLC | 76,961 | $100.0K | 0.00% | +65,768+587.6% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 65,393 | $85.0K | 0.00% | −64,359−49.6% | Reduced |
| Goldman Sachs Group Inc | 55,148 | $71.7K | 0.00% | −18,289−24.9% | Reduced |
| Tower Research Capital LLC (TRC) | 51,217 | $66.0K | 0.00% | +34,067+198.6% | Added |
| Two Sigma Advisers, LP | 37,400 | $48.6K | 0.00% | −27,400−42.3% | Reduced |
| Barclays PLC | 35,928 | $46.7K | 0.00% | −1,266−3.4% | Reduced |
| Charles Schwab Investment Management Inc | 32,452 | $42.2K | 0.00% | 00.0% | Unchanged |
| Morgan Stanley | 31,378 | $40.8K | 0.00% | −23,368−42.7% | Reduced |
| UBS Group AG | 24,007 | $31.2K | 0.00% | +12,576+110.0% | Added |
| Susquehanna International Group, LLP | 21,255 | $27.6K | 0.00% | +8,615+68.2% | Added |
| Commonwealth Equity Services, LLC | 18,248 | $23.0K | 0.00% | −400−2.1% | Reduced |
| Bank of New York Mellon Corp | 15,866 | $20.6K | 0.00% | 00.0% | Unchanged |
| RBF Capital, LLC | 14,741 | $19.0K | 0.00% | 00.0% | Unchanged |
| ETF Managers Group, LLC | 12,161 | $15.8K | 0.00% | −2,132−14.9% | Reduced |
| HSBC Holdings PLC | 11,413 | $14.3K | 0.00% | −670−5.5% | Reduced |
| Squarepoint Ops LLC | 10,485 | $13.6K | 0.00% | +10,485 | New |
| Advisor Group Holdings, Inc. | 518 | $1.00K | 0.00% | 00.0% | Unchanged |
| Wells Fargo & Company | 332 | $432 | 0.00% | +10+3.1% | Added |
| Bank of America Corp | 59 | $77 | 0.00% | −30,350−99.8% | Reduced |
| BNP Paribas Arbitrage, SA | 32 | $42 | 0.00% | −9−22.0% | Reduced |
| Advisory Services Network, LLC | 1 | $1 | 0.00% | +1 | New |
| JPMorgan Chase & Co | 94 | $0 | 0.00% | 00.0% | Unchanged |
| Healthcare of Ontario Pension Plan Trust Fund | 0 | $0 | 0.00% | −570,300−100.0% | Sold out |
| Assenagon Asset Management S.A. | 0 | $0 | 0.00% | −253,783−100.0% | Sold out |
| Marquette Asset Management, LLC | 0 | $0 | 0.00% | −58,246−100.0% | Sold out |
| Algert Global LLC | 0 | $0 | 0.00% | −41,890−100.0% | Sold out |
| Two Sigma Investments, LP | 0 | $0 | 0.00% | −32,067−100.0% | Sold out |
| Virtu Financial LLC | 0 | $0 | 0.00% | −30,046−100.0% | Sold out |
| Cubist Systematic Strategies, LLC | 0 | $0 | 0.00% | −19,857−100.0% | Sold out |
| Prudential Financial Inc | 0 | $0 | 0.00% | −19,780−100.0% | Sold out |
| Occudo Quantitative Strategies LP | 0 | $0 | 0.00% | −12,440−100.0% | Sold out |
| Running Point Capital Advisors, LLC | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −2,703−100.0% | Sold out |
| Royal Bank of Canada | 0 | $0 | 0.00% | −187−100.0% | Sold out |