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 2023
Institutional positions in Assembly Biosciences, Inc. as of Mar 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
- 38
- −2 vs. Q4 2022
- Shares held
- 12.1M
- −2.14M (−15.0%) vs. Q4 2022
- Total value
- $10.1M
- −$8.31M (−45.1%) vs. Q4 2022
- New holders
- 3
- 9 more added
- Sold out
- 5
- 15 more reduced
Compare with Q4 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 | $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, Q1 2023
Shares, value and share of portfolio for each institution holding Assembly Biosciences, Inc.; share changes are against Q4 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| JPMorgan Chase & Co | 95 | $0 | 0.00% | +1+1.1% | Added |
| Advisory Services Network, LLC | 1 | $1 | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 32 | $27 | 0.00% | 00.0% | Unchanged |
| Wells Fargo & Company | 337 | $283 | 0.00% | +5+1.5% | Added |
| Advisor Group Holdings, Inc. | 500 | $420 | 0.00% | −18−3.5% | Reduced |
| Baker Avenue Asset Management, LP | 1,000 | $840 | 0.00% | +1,000 | New |
| UBS Group AG | 10,601 | $8.90K | 0.00% | −13,406−55.8% | Reduced |
| HSBC Holdings PLC | 11,413 | $9.53K | 0.00% | 00.0% | Unchanged |
| Virtu Financial LLC | 11,924 | $10.0K | 0.00% | +11,924 | New |
| RBF Capital, LLC | 14,741 | $11.8K | 0.00% | 00.0% | Unchanged |
| Bank of New York Mellon Corp | 15,866 | $13.3K | 0.00% | 00.0% | Unchanged |
| ETF Managers Group, LLC | 16,315 | $13.7K | 0.00% | +4,154+34.2% | Added |
| Susquehanna International Group, LLP | 17,167 | $14.4K | 0.00% | −4,088−19.2% | Reduced |
| Commonwealth Equity Services, LLC | 18,148 | $15.0K | 0.00% | −100−0.5% | Reduced |
| Jane Street Group, LLC | 24,305 | $20.4K | 0.00% | −52,656−68.4% | Reduced |
| Tower Research Capital LLC (TRC) | 31,160 | $26.0K | 0.00% | −20,057−39.2% | Reduced |
| Charles Schwab Investment Management Inc | 32,452 | $27.3K | 0.00% | 00.0% | Unchanged |
| Two Sigma Advisers, LP | 33,100 | $27.8K | 0.00% | −4,300−11.5% | Reduced |
| Barclays PLC | 35,928 | $30.2K | 0.00% | 00.0% | Unchanged |
| Two Sigma Investments, LP | 38,303 | $32.2K | 0.00% | +38,303 | New |
| Morgan Stanley | 44,428 | $37.3K | 0.00% | +13,050+41.6% | Added |
| Franklin Resources Inc | 82,645 | $69.5K | 0.00% | 00.0% | Unchanged |
| Northern Trust Corp | 98,400 | $82.7K | 0.00% | +6,928+7.6% | Added |
| Citadel Advisors LLC | 140,953 | $118.5K | 0.00% | +32,200+29.6% | Added |
| State Street Corp | 145,335 | $122.1K | 0.00% | 00.0% | Unchanged |
| Acadian Asset Management LLC | 157,549 | $132.0K | 0.00% | −99,552−38.7% | Reduced |
| FMR LLC | 157,700 | $132.5K | 0.00% | +11,234+7.7% | Added |
| Bridgeway Capital Management, LLC | 174,000 | $146.2K | 0.00% | −14,200−7.5% | Reduced |
| Dimensional Fund Advisors LP | 284,185 | $238.7K | 0.00% | −38,503−11.9% | Reduced |
| Federated Hermes, Inc. | 363,023 | $304.9K | 0.00% | −10,613−2.8% | Reduced |
| Geode Capital Management, LLC | 452,628 | $380.4K | 0.00% | 00.0% | Unchanged |
| Renaissance Technologies LLC | 765,800 | $644.0K | 0.00% | +262,416+52.1% | Added |
| Platinum Investment Management Ltd | 890,736 | $748.6K | 0.03% | −204,034−18.6% | Reduced |
| Hudson Bay Capital Management LP | 950,000 | $798.4K | 0.01% | −75,000−7.3% | Reduced |
| BlackRock Inc. | 1,086,563 | $913.1K | 0.00% | −48,543−4.3% | Reduced |
| Millennium Management LLC | 1,449,987 | $1.22M | 0.00% | −47,619−3.2% | Reduced |
| Satter Management Co., L.P. | 2,227,500 | $1.87M | 2.47% | 00.0% | Unchanged |
| Vanguard Group Inc | 2,273,762 | $1.91M | 0.00% | +80,800+3.7% | Added |
| Deep Track Capital, LP | 0 | $0 | 0.00% | −1,833,437−100.0% | Sold out |
| Connor, Clark & Lunn Investment Management Ltd. | 0 | $0 | 0.00% | −65,393−100.0% | Sold out |
| Goldman Sachs Group Inc | 0 | $0 | 0.00% | −55,148−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −10,485−100.0% | Sold out |
| Bank of America Corp | 0 | $0 | 0.00% | −59−100.0% | Sold out |