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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 2021

Institutional positions in Assembly Biosciences, Inc. as of Mar 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
107
No complete 13F data for Q4 2020
Shares held
28.7M
No complete 13F data for Q4 2020
Total value
$133.6M
No complete 13F data for Q4 2020

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.

Institutional holdersQ1 2021: 107 institutions
Q1 2021: 107 institutionsQ2 2021: 91 institutionsQ3 2021: 65 institutionsQ4 2021: 62 institutionsQ1 2022: 54 institutionsQ2 2022: 54 institutionsQ3 2022: 50 institutionsQ4 2022: 40 institutionsQ1 2023: 38 institutionsQ2 2023: 32 institutionsQ3 2023: 32 institutionsQ4 2023: 45 institutionsQ1 2024: 24 institutionsQ2 2024: 27 institutionsQ3 2024: 30 institutionsQ4 2024: 35 institutionsQ1 2025: 37 institutionsQ2 2025: 33 institutionsQ3 2025: 57 institutionsQ4 2025: 69 institutionsQ1 2026: 75 institutionsQ2 2026: 92 institutions
Value heldQ1 2021: $133.6M
Q1 2021: $133.6MQ2 2021: $105.1MQ3 2021: $79.0MQ4 2021: $53.8MQ1 2022: $39.3MQ2 2022: $36.1MQ3 2022: $27.2MQ4 2022: $18.4MQ1 2023: $10.1MQ2 2023: $12.0MQ3 2023: $8.44MQ4 2023: $7.09MQ1 2024: $8.61MQ2 2024: $16.1MQ3 2024: $15.5MQ4 2024: $50.3MQ1 2025: $30.4MQ2 2025: $57.0MQ3 2025: $324.9MQ4 2025: $466.7MQ1 2026: $376.4MQ2 2026: $514.8M
Institutions holding ASMB and their total value by quarter
QuarterHoldersValue
Q2 202692$514.8M
Q1 202675$376.4M
Q4 202569$466.7M
Q3 202557$324.9M
Q2 202533$57.0M
Q1 202537$30.4M
Q4 202435$50.3M
Q3 202430$15.5M
Q2 202427$16.1M
Q1 202424$8.61M
Q4 202345$7.09M
Q3 202332$8.44M
Q2 202332$12.0M
Q1 202338$10.1M
Q4 202240$18.4M
Q3 202250$27.2M
Q2 202254$36.1M
Q1 202254$39.3M
Q4 202162$53.8M
Q3 202165$79.0M
Q2 202191$105.1M
Q1 2021107$133.6M

Institutions, Q1 2021

Shares, value and share of portfolio for each institution holding Assembly Biosciences, Inc..

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.

Institutions holding ASMB in Q1 2021
InstitutionSharesValue% of portfolioChange in sharesAction
The PNC Financial Services Group, Inc.22$00.00%––
Daiwa Securities Group Inc.72$00.00%––
FMR LLC501$2.00K0.00%––
Captrust Financial Advisors417$2.00K0.00%––
Nisa Investment Advisors, LLC695$3.00K0.00%––
Cutler Group LP700$3.00K0.00%––
Penserra Capital Management LLC855$3.00K0.00%––
Bank of Montreal914$4.00K0.00%––
Macquarie Group Ltd912$4.00K0.00%––
Ameritas Investment Partners, Inc.2,472$11.0K0.00%––
Public Employees Retirement System of Ohio2,761$13.0K0.00%––
Citigroup Inc3,086$14.0K0.00%––
Great West Life Assurance Co3,033$14.0K0.00%––
Tower Research Capital LLC (TRC)3,106$14.0K0.00%––
Federated Hermes, Inc.3,338$15.0K0.00%––
Royal Bank of Canada3,616$16.0K0.00%––
Zurcher Kantonalbank (Zurich Cantonalbank)4,677$22.0K0.00%––
Legal & General Group Plc6,362$29.0K0.00%––
Wells Fargo & Company7,893$37.0K0.00%––
Morgan Stanley8,765$40.0K0.00%––
Group One Trading, L.P.9,523$44.0K0.00%––
BNP Paribas Arbitrage, SA9,924$45.6K0.00%––
ETF Managers Group, LLC11,726$53.0K0.00%––
XTX Topco Ltd11,450$53.0K0.03%––
Boothbay Fund Management, LLC12,140$56.0K0.00%––
ProShare Advisors LLC13,472$62.0K0.00%––
Jane Street Group, LLC13,399$62.0K0.00%––
Los Angeles Capital Management LLC13,855$64.0K0.00%––
RBF Capital, LLC14,741$68.0K0.00%––
ExodusPoint Capital Management, LP14,954$69.0K0.00%––
UBS Group AG15,582$72.0K0.00%––
State Board of Administration of Florida Retirement System16,017$74.0K0.00%––
Voya Investment Management LLC16,114$74.0K0.00%––
Blair William & Co16,500$76.0K0.00%––
Ameriprise Financial Inc16,960$78.0K0.00%––
Dynamic Technology Lab Private Ltd17,166$79.0K0.01%––
American International Group, Inc.17,886$82.0K0.00%––
Jupiter Asset Management Ltd18,235$84.0K0.00%––
Commonwealth Equity Services, LLC19,299$88.0K0.00%––
New York State Common Retirement Fund20,500$94.0K0.00%––
Deutsche Bank AG20,691$96.0K0.00%––
Diversified Trust Co21,248$98.0K0.00%––
Simplex Trading, LLC21,808$100.0K0.01%––
GAM Holding AG24,100$111.0K0.01%––
Credit Suisse AG25,129$115.0K0.00%––
Alliancebernstein L.P.25,600$118.0K0.00%––
Bank of America Corp31,242$144.0K0.00%––
HRT Financial LP31,480$144.0K0.00%––
Valeo Financial Advisors, LLC31,664$146.0K0.01%––
Walleye Trading LLC33,266$153.0K0.01%––
Susquehanna International Group, LLP33,665$155.0K0.00%––
Squarepoint Ops LLC34,600$159.0K0.00%––
STRS Ohio36,400$167.0K0.00%––
Rhumbline Advisers43,113$198.0K0.00%––
Parametric Portfolio Associates LLC43,270$199.0K0.00%––
California State Teachers Retirement System46,380$213.0K0.00%––
SEI Investments Co46,644$215.0K0.00%––
Wellington Management Group LLP49,290$227.0K0.00%––
Man Group plc49,800$229.0K0.00%––
Raffles Associates LP50,000$230.0K0.23%––
Invesco Ltd.54,879$253.0K0.00%––
Prosight Management, LP56,500$260.0K0.21%––
AQR Capital Management LLC58,444$269.0K0.00%––
Alps Advisors Inc59,743$275.0K0.00%––
Cubist Systematic Strategies, LLC60,925$280.0K0.00%––
California Public Employees Retirement System62,400$287.0K0.00%––
UBS Asset Management Americas Inc64,109$294.9K0.00%––
Swiss National Bank70,500$324.0K0.00%––
Ikarian Capital, LLC72,468$334.0K0.05%––
Walleye Capital LLC80,524$370.0K0.02%––
Engineers Gate Manager LP86,219$397.0K0.02%––
Millennium Management LLC87,237$401.0K0.00%––
IndexIQ Advisors LLC89,191$410.0K0.01%––
Occudo Quantitative Strategies LP97,202$447.0K0.10%––
Bank of New York Mellon Corp126,665$583.0K0.00%––
Russell Investments Group, Ltd.132,362$607.0K0.00%––
Connor, Clark & Lunn Investment Management Ltd.138,745$638.0K0.00%––
Bridgeway Capital Management, LLC150,000$690.0K0.01%––
Barclays PLC152,892$703.0K0.00%––
Goldman Sachs Group Inc159,581$734.0K0.00%––
Panagora Asset Management Inc187,954$865.0K0.00%––
Nuveen Asset Management, LLC211,554$973.0K0.00%––
Charles Schwab Investment Management Inc222,721$1.02M0.00%––
Jacobs Levy Equity Management, Inc256,915$1.18M0.01%––
PDT Partners, LLC274,476$1.26M0.09%––
JPMorgan Chase & Co280,124$1.29M0.00%––
Northern Trust Corp371,127$1.71M0.00%––
Vida Ventures Advisors, LLC450,000$2.07M0.52%––
Dimensional Fund Advisors LP497,591$2.29M0.00%––
Two Sigma Investments, LP553,795$2.55M0.01%––
Renaissance Technologies LLC577,335$2.66M0.00%––
State Street Corp612,736$2.82M0.00%––
Hudson Bay Capital Management LP620,000$2.85M0.04%––
Geode Capital Management, LLC657,096$3.02M0.00%––
Two Sigma Advisers, LP704,200$3.24M0.01%––
Citadel Advisors LLC885,037$4.07M0.00%––
Franklin Resources Inc910,077$4.19M0.00%––
Acadian Asset Management LLC1,068,526$4.92M0.02%––
Soleus Capital Management, L.P.1,122,000$5.16M0.93%––
Platinum Investment Management Ltd1,431,120$6.58M0.15%––