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 2024
Institutional positions in Assembly Biosciences, Inc. as of Dec 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
- 35
- +5 vs. Q3 2024
- Shares held
- 3.19M
- +2.16M (+209.1%) vs. Q3 2024
- Total value
- $50.3M
- +$34.7M (+222.4%) vs. Q3 2024
- New holders
- 10
- 11 more added
- Sold out
- 5
- 7 more reduced
Compare with Q3 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, Q4 2024
Shares, value and share of portfolio for each institution holding Assembly Biosciences, Inc.; share changes are against Q3 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Gilead Sciences, Inc. | 2,209,471 | $34.9M | 2.25% | +2,209,471 | New |
| Vanguard Group Inc | 200,458 | $3.16M | 0.00% | 00.0% | Unchanged |
| Armistice Capital, LLC | 168,074 | $2.65M | 0.06% | −185,926−52.5% | Reduced |
| Renaissance Technologies LLC | 94,711 | $1.49M | 0.00% | +29,087+44.3% | Added |
| BlackRock, Inc. | 81,529 | $1.29M | 0.00% | +4,421+5.7% | Added |
| Peapod Lane Capital LLC | 62,970 | $993.7K | 0.98% | +62,970 | New |
| B Group, Inc. | 50,651 | $799.3K | 0.49% | +50,651 | New |
| Geode Capital Management, LLC | 46,635 | $736.1K | 0.00% | −399−0.8% | Reduced |
| Monimus Capital Management, LP | 42,067 | $663.8K | 0.63% | +42,067 | New |
| Northern Trust Corp | 28,649 | $452.1K | 0.00% | −1,175−3.9% | Reduced |
| Federated Hermes, Inc. | 25,394 | $400.7K | 0.00% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 21,454 | $338.5K | 0.00% | +5,597+35.3% | Added |
| Man Group plc | 19,567 | $308.8K | 0.00% | +19,567 | New |
| FMR LLC | 17,566 | $277.2K | 0.00% | +1,711+10.8% | Added |
| Acadian Asset Management LLC | 16,204 | $255.0K | 0.00% | +2,646+19.5% | Added |
| Marshall Wace, LLP | 14,823 | $233.9K | 0.00% | +2,098+16.5% | Added |
| Bridgeway Capital Management, LLC | 14,025 | $221.3K | 0.00% | −475−3.3% | Reduced |
| State Street Corp | 14,009 | $221.1K | 0.00% | +1,200+9.4% | Added |
| Palumbo Wealth Management LLC | 11,427 | $180.3K | 0.07% | +11,427 | New |
| JPMorgan Chase & Co | 11,427 | $180.3K | 0.00% | +4,409+62.8% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 10,813 | $170.6K | 0.00% | +10,813 | New |
| Marquette Asset Management, LLC | 9,016 | $142.3K | 0.02% | 00.0% | Unchanged |
| UBS Group AG | 6,547 | $103.3K | 0.00% | +5,246+403.2% | Added |
| Barclays PLC | 2,994 | $47.2K | 0.00% | −41−1.4% | Reduced |
| Morgan Stanley | 2,986 | $47.1K | 0.00% | +326+12.3% | Added |
| GWM Advisors LLC | 846 | $13.3K | 0.00% | +84+11.0% | Added |
| Tower Research Capital LLC (TRC) | 349 | $5.51K | 0.00% | −239−40.6% | Reduced |
| BNP Paribas Arbitrage, SA | 302 | $4.77K | 0.00% | +302 | New |
| Northwestern Mutual Wealth Management Co | 260 | $4.10K | 0.00% | +260 | New |
| Rhumbline Advisers | 190 | $3.00K | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 187 | $2.95K | 0.00% | 00.0% | Unchanged |
| SBI Securities Co., Ltd. | 67 | $1.06K | 0.00% | +67 | New |
| EverSource Wealth Advisors, LLC | 55 | $868 | 0.00% | 00.0% | Unchanged |
| Bank of America Corp | 37 | $584 | 0.00% | −307−89.2% | Reduced |
| Frazier Financial Advisors, LLC | 1 | $17 | 0.00% | 00.0% | Unchanged |
| Acuitas Investments, LLC | 0 | $0 | 0.00% | −62,315−100.0% | Sold out |
| Millennium Management LLC | 0 | $0 | 0.00% | −37,553−100.0% | Sold out |
| Citadel Advisors LLC | 0 | $0 | 0.00% | −12,720−100.0% | Sold out |
| Amundi | 0 | $0 | 0.00% | −7,934−100.0% | Sold out |
| Lazard Asset Management LLC | 0 | $0 | 0.00% | −71−100.0% | Sold out |