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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 2024

Institutional positions in Assembly Biosciences, Inc. as of Mar 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
24
−21 vs. Q4 2023
Shares held
647.3K
−73.4K (−10.2%) vs. Q4 2023Converted for a 1-for-12 split
Total value
$8.61M
+$1.52M (+21.4%) vs. Q4 2023
New holders
0
9 more added
Sold out
21
8 more reduced

Compare with Q4 2023: 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.

Institutional holdersQ1 2024: 24 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 2024: $8.61M
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 2024

Shares, value and share of portfolio for each institution holding Assembly Biosciences, Inc.; share changes are against Q4 2023.

Institutions holding ASMB in Q1 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Qube Research & Technologies Ltd3$400.00%−1−16.3%ReducedConverted for a 1-for-12 split
JPMorgan Chase & Co7$930.00%−1−10.6%ReducedConverted for a 1-for-12 split
Wells Fargo & Company44$5850.00%+2+4.3%AddedConverted for a 1-for-12 split
EverSource Wealth Advisors, LLC55$6860.00%−0−0.6%ReducedConverted for a 1-for-12 split
Royal Bank of Canada79$1.00K0.00%+34+73.6%AddedConverted for a 1-for-12 split
Rhumbline Advisers199$2.65K0.00%−1−0.6%ReducedConverted for a 1-for-12 split
Tower Research Capital LLC (TRC)857$11.4K0.00%−225−20.8%ReducedConverted for a 1-for-12 split
Morgan Stanley2,472$32.9K0.00%−83−3.2%ReducedConverted for a 1-for-12 split
Barclays PLC2,994$39.8K0.00%00.0%UnchangedConverted for a 1-for-12 split
UBS Group AG3,235$43.0K0.00%+1,221+60.7%AddedConverted for a 1-for-12 split
Acadian Asset Management LLC5,868$78.0K0.00%00.0%UnchangedConverted for a 1-for-12 split
Amundi7,934$105.8K0.00%00.0%UnchangedConverted for a 1-for-12 split
Marquette Asset Management, LLC9,016$119.9K0.02%+4,477+98.6%AddedConverted for a 1-for-12 split
Northern Trust Corp10,559$140.4K0.00%−373−3.4%ReducedConverted for a 1-for-12 split
FMR LLC11,318$150.5K0.00%00.0%UnchangedConverted for a 1-for-12 split
State Street Corp12,109$161.1K0.00%00.0%UnchangedConverted for a 1-for-12 split
Bridgeway Capital Management, LLC14,500$192.8K0.00%00.0%UnchangedConverted for a 1-for-12 split
Federated Hermes, Inc.25,394$337.7K0.00%00.0%UnchangedConverted for a 1-for-12 split
Renaissance Technologies LLC39,460$525.0K0.00%+3,584+10.0%AddedConverted for a 1-for-12 split
Acuitas Investments, LLC49,732$661.4K0.33%+27,600+124.7%AddedConverted for a 1-for-12 split
Geode Capital Management, LLC52,197$694.4K0.00%+1,197+2.3%AddedConverted for a 1-for-12 split
BlackRock Inc.77,961$1.04M0.00%−1,038−1.3%ReducedConverted for a 1-for-12 split
Millennium Management LLC124,922$1.66M0.00%+4,085+3.4%AddedConverted for a 1-for-12 split
Vanguard Group Inc196,368$2.61M0.00%+1,444+0.7%AddedConverted for a 1-for-12 split
Anson Funds Management LP0$00.00%−59,956−100.0%Sold outConverted for a 1-for-12 split
Two Sigma Investments, LP0$00.00%−11,254−100.0%Sold outConverted for a 1-for-12 split
Citadel Advisors LLC0$00.00%−10,409−100.0%Sold outConverted for a 1-for-12 split
Susquehanna International Group, LLP0$00.00%−5,981−100.0%Sold outConverted for a 1-for-12 split
Franklin Resources Inc0$00.00%−5,449−100.0%Sold outConverted for a 1-for-12 split
Jane Street Group, LLC0$00.00%−3,741−100.0%Sold outConverted for a 1-for-12 split
XTX Topco Ltd0$00.00%−3,454−100.0%Sold outConverted for a 1-for-12 split
Two Sigma Advisers, LP0$00.00%−2,767−100.0%Sold outConverted for a 1-for-12 split
Charles Schwab Investment Management Inc0$00.00%−2,704−100.0%Sold outConverted for a 1-for-12 split
HRT Financial LP0$00.00%−2,543−100.0%Sold outConverted for a 1-for-12 split
Commonwealth Equity Services, LLC0$00.00%−1,385−100.0%Sold outConverted for a 1-for-12 split
Bank of New York Mellon Corp0$00.00%−1,322−100.0%Sold outConverted for a 1-for-12 split
RBF Capital, LLC0$00.00%−1,228−100.0%Sold outConverted for a 1-for-12 split
HSBC Holdings PLC0$00.00%−951−100.0%Sold outConverted for a 1-for-12 split
Palumbo Wealth Management LLC0$00.00%−840−100.0%Sold outConverted for a 1-for-12 split
Engineers Gate Manager LP0$00.00%−839−100.0%Sold outConverted for a 1-for-12 split
Clear Street Markets LLC0$00.00%−417−100.0%Sold outConverted for a 1-for-12 split
BNP Paribas Arbitrage, SA0$00.00%−3−100.0%Sold outConverted for a 1-for-12 split
Bank of America Corp0$00.00%−2−100.0%Sold outConverted for a 1-for-12 split
Advisory Services Network, LLC0$00.00%−0−100.0%Sold outConverted for a 1-for-12 split
Simplex Trading, LLC0$00.00%−6−100.0%Sold outConverted for a 1-for-12 split