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 2021
Institutional positions in Assembly Biosciences, Inc. as of Dec 31, 2021. 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
- 62
- −3 vs. Q3 2021
- Shares held
- 23.3M
- +608.7K (+2.7%) vs. Q3 2021
- Total value
- $54.3M
- −$24.7M (−31.3%) vs. Q3 2021
- New holders
- 9
- 22 more added
- Sold out
- 12
- 18 more reduced
Compare with Q3 2021: 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 2021
Shares, value and share of portfolio for each institution holding Assembly Biosciences, Inc.; share changes are against Q3 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Deep Track Capital, LP | 3,000,000 | $6.99M | 0.52% | +3,000,000 | New |
| Satter Management Co., L.P. | 2,227,500 | $5.19M | 5.28% | 00.0% | Unchanged |
| Vanguard Group Inc | 2,205,053 | $5.14M | 0.00% | +301,320+15.8% | Added |
| Armistice Capital, LLC | 2,000,000 | $4.66M | 0.11% | −208,000−9.4% | Reduced |
| Platinum Investment Management Ltd | 1,909,498 | $4.45M | 0.12% | +256,489+15.5% | Added |
| Candriam Luxembourg S.C.A. | 1,838,221 | $4.28M | 0.03% | +369,375+25.1% | Added |
| Acadian Asset Management LLC | 1,608,760 | $3.75M | 0.01% | +196,033+13.9% | Added |
| BlackRock Inc. | 1,187,119 | $2.77M | 0.00% | −782,858−39.7% | Reduced |
| Hudson Bay Capital Management LP | 1,075,000 | $2.50M | 0.03% | +225,000+26.5% | Added |
| Renaissance Technologies LLC | 671,023 | $1.56M | 0.00% | +540,423+413.8% | Added |
| Franklin Resources Inc | 584,688 | $1.36M | 0.00% | 00.0% | Unchanged |
| Dimensional Fund Advisors LP | 553,428 | $1.29M | 0.00% | +194,113+54.0% | Added |
| Federated Hermes, Inc. | 544,486 | $1.27M | 0.00% | +2,085+0.4% | Added |
| Geode Capital Management, LLC | 515,364 | $1.20M | 0.00% | −9,899−1.9% | Reduced |
| Two Sigma Advisers, LP | 423,300 | $986.0K | 0.00% | +74,600+21.4% | Added |
| Millennium Management LLC | 333,936 | $778.0K | 0.00% | +48,508+17.0% | Added |
| Barclays PLC | 323,914 | $756.0K | 0.00% | +110,934+52.1% | Added |
| Eversept Partners, LP | 310,000 | $722.3K | 0.06% | −40,000−11.4% | Reduced |
| Ikarian Capital, LLC | 214,861 | $501.0K | 0.14% | 00.0% | Unchanged |
| Two Sigma Investments, LP | 190,291 | $443.0K | 0.00% | +190,291 | New |
| Anson Funds Management LP | 179,192 | $418.0K | 0.05% | +179,192 | New |
| Connor, Clark & Lunn Investment Management Ltd. | 170,216 | $397.0K | 0.00% | +13,801+8.8% | Added |
| State Street Corp | 125,623 | $293.0K | 0.00% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 123,748 | $288.0K | 0.00% | +36,112+41.2% | Added |
| Susquehanna International Group, LLP | 113,998 | $266.0K | 0.00% | +78,105+217.6% | Added |
| Northern Trust Corp | 102,571 | $239.0K | 0.00% | −4,105−3.8% | Reduced |
| IndexIQ Advisors LLC | 91,806 | $214.0K | 0.01% | −5,933−6.1% | Reduced |
| Walleye Capital LLC | 75,369 | $176.0K | 0.01% | +4,194+5.9% | Added |
| Morgan Stanley | 66,153 | $155.0K | 0.00% | +9,164+16.1% | Added |
| Goldman Sachs Group Inc | 55,361 | $129.0K | 0.00% | −76,006−57.9% | Reduced |
| Marquette Asset Management, LLC | 48,000 | $112.0K | 0.02% | +20,359+73.7% | Added |
| Invesco Ltd. | 44,677 | $104.0K | 0.00% | −4,759−9.6% | Reduced |
| Cubist Systematic Strategies, LLC | 35,654 | $83.0K | 0.00% | +16,800+89.1% | Added |
| Virtu Financial LLC | 35,639 | $83.0K | 0.01% | +35,639 | New |
| Bridgeway Capital Management, LLC | 26,300 | $61.0K | 0.00% | 00.0% | Unchanged |
| Citadel Advisors LLC | 25,620 | $60.0K | 0.00% | −820,704−97.0% | Reduced |
| Valeo Financial Advisors, LLC | 25,500 | $59.0K | 0.00% | 00.0% | Unchanged |
| XTX Topco Ltd | 24,425 | $57.0K | 0.03% | +24,425 | New |
| GAM Holding AG | 24,100 | $56.0K | 0.00% | 00.0% | Unchanged |
| ExodusPoint Capital Management, LP | 22,554 | $53.0K | 0.00% | +3,134+16.1% | Added |
| Boothbay Fund Management, LLC | 21,408 | $50.0K | 0.00% | 00.0% | Unchanged |
| Jump Financial, LLC | 20,300 | $47.0K | 0.00% | +20,300 | New |
| Commonwealth Equity Services, LLC | 19,949 | $46.0K | 0.00% | −350−1.7% | Reduced |
| HSBC Holdings PLC | 18,645 | $44.0K | 0.00% | +18,645 | New |
| Bank of New York Mellon Corp | 15,866 | $37.0K | 0.00% | 00.0% | Unchanged |
| RBF Capital, LLC | 14,741 | $34.0K | 0.00% | 00.0% | Unchanged |
| ETF Managers Group, LLC | 14,469 | $33.0K | 0.00% | −1,952−11.9% | Reduced |
| Squarepoint Ops LLC | 13,339 | $31.0K | 0.00% | +13,339 | New |
| Ameriprise Financial Inc | 12,185 | $28.0K | 0.00% | −2,440−16.7% | Reduced |
| Bridgefront Capital, LLC | 10,137 | $24.0K | 0.02% | 00.0% | Unchanged |
| Bank of America Corp | 7,907 | $18.0K | 0.00% | −27,026−77.4% | Reduced |
| UBS Group AG | 6,322 | $15.0K | 0.00% | −137,311−95.6% | Reduced |
| Simplex Trading, LLC | 2,897 | $6.00K | 0.00% | −14,695−83.5% | Reduced |
| FMR LLC | 1,250 | $3.00K | 0.00% | +750+150.0% | Added |
| BNP Paribas Arbitrage, SA | 924 | $2.15K | 0.00% | +885+2,269.2% | Added |
| Tower Research Capital LLC (TRC) | 1,012 | $2.00K | 0.00% | −21,839−95.6% | Reduced |
| Macquarie Group Ltd | 912 | $2.00K | 0.00% | 00.0% | Unchanged |
| Wells Fargo & Company | 261 | $1.00K | 0.00% | +135+107.1% | Added |
| JPMorgan Chase & Co | 94 | $0 | 0.00% | −2,871−96.8% | Reduced |
| Cutler Group LP | 200 | $0 | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 18 | $0 | 0.00% | −1−5.3% | Reduced |
| Royal Bank of Canada | 29 | $0 | 0.00% | +29 | New |
| Boxer Capital, LLC | 0 | $0 | 0.00% | −1,500,000−100.0% | Sold out |
| Soleus Capital Management, L.P. | 0 | $0 | 0.00% | −1,122,000−100.0% | Sold out |
| Prosight Management, LP | 0 | $0 | 0.00% | −265,634−100.0% | Sold out |
| Jacobs Levy Equity Management, Inc | 0 | $0 | 0.00% | −200,553−100.0% | Sold out |
| Caption Management, LLC | 0 | $0 | 0.00% | −67,700−100.0% | Sold out |
| New York Life Investments Alternatives | 0 | $0 | 0.00% | −20,909−100.0% | Sold out |
| Walleye Trading LLC | 0 | $0 | 0.00% | −17,656−100.0% | Sold out |
| Diversified Trust Co | 0 | $0 | 0.00% | −16,198−100.0% | Sold out |
| Citigroup Inc | 0 | $0 | 0.00% | −2,299−100.0% | Sold out |
| Penserra Capital Management LLC | 0 | $0 | 0.00% | −1,030−100.0% | Sold out |
| Nisa Investment Advisors, LLC | 0 | $0 | 0.00% | −695−100.0% | Sold out |
| Daiwa Securities Group Inc. | 0 | $0 | 0.00% | −72−100.0% | Sold out |