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, Q3 2024
Institutional positions in Assembly Biosciences, Inc. as of Sep 30, 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
- 30
- +4 vs. Q2 2024
- Shares held
- 1.03M
- −67.6K (−6.2%) vs. Q2 2024
- Total value
- $15.6M
- +$542.3K (+3.6%) vs. Q2 2024
- New holders
- 5
- 8 more added
- Sold out
- 1
- 7 more reduced
1 institution that held it in Q2 2024 haven't filed for Q3 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2024: 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, Q3 2024
Shares, value and share of portfolio for each institution holding Assembly Biosciences, Inc.; share changes are against Q2 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Armistice Capital, LLC | 354,000 | $5.36M | 0.14% | −114,000−24.4% | Reduced |
| Vanguard Group Inc | 200,458 | $3.03M | 0.00% | 00.0% | Unchanged |
| BlackRock, Inc. | 77,108 | $1.17M | 0.00% | +77,108 | New |
| Renaissance Technologies LLC | 65,624 | $993.5K | 0.00% | +10,713+19.5% | Added |
| Acuitas Investments, LLC | 62,315 | $943.4K | 0.42% | +12,319+24.6% | Added |
| Geode Capital Management, LLC | 47,034 | $712.3K | 0.00% | −7,375−13.6% | Reduced |
| Millennium Management LLC | 37,553 | $568.6K | 0.00% | −85,905−69.6% | Reduced |
| Northern Trust Corp | 29,824 | $451.5K | 0.00% | +18,257+157.8% | Added |
| Federated Hermes, Inc. | 25,394 | $384.5K | 0.00% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 15,857 | $240.1K | 0.00% | −1,543−8.9% | Reduced |
| FMR LLC | 15,855 | $240.0K | 0.00% | +3,635+29.7% | Added |
| Bridgeway Capital Management, LLC | 14,500 | $219.5K | 0.00% | 00.0% | Unchanged |
| Acadian Asset Management LLC | 13,558 | $203.0K | 0.00% | 00.0% | Unchanged |
| State Street Corp | 12,809 | $193.9K | 0.00% | 00.0% | Unchanged |
| Marshall Wace, LLP | 12,725 | $192.7K | 0.00% | +12,725 | New |
| Citadel Advisors LLC | 12,720 | $192.6K | 0.00% | −26−0.2% | Reduced |
| Marquette Asset Management, LLC | 9,016 | $136.5K | 0.02% | 00.0% | Unchanged |
| Amundi | 7,934 | $114.4K | 0.00% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 7,018 | $106.3K | 0.00% | +6,884+5,137.3% | Added |
| Barclays PLC | 3,035 | $46.0K | 0.00% | +41+1.4% | Added |
| Morgan Stanley | 2,660 | $40.3K | 0.00% | +98+3.8% | Added |
| UBS Group AG | 1,301 | $19.7K | 0.00% | −1,648−55.9% | Reduced |
| GWM Advisors LLC | 762 | $11.5K | 0.00% | +762 | New |
| Tower Research Capital LLC (TRC) | 588 | $8.90K | 0.00% | −192−24.6% | Reduced |
| Bank of America Corp | 344 | $5.21K | 0.00% | +298+647.8% | Added |
| Rhumbline Advisers | 190 | $2.88K | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 187 | $2.83K | 0.00% | +187 | New |
| Lazard Asset Management LLC | 71 | $1.00K | 0.00% | +71 | New |
| EverSource Wealth Advisors, LLC | 55 | $833 | 0.00% | 00.0% | Unchanged |
| Frazier Financial Advisors, LLC | 1 | $16 | 0.00% | 00.0% | Unchanged |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −3−100.0% | Sold out |
| BlackRock Inc. | – | – | – | – | Not filed |