NASDAQ: ASMB
Assembly Biosciences Inc Stock Ownership - Who owns Assembly Biosciences?

Insider buying vs selling

Have Assembly Biosciences Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Jeanette M. BjorkquistPFO and PAO2026-03-30312$26.65
$8.31kSell
Jeanette M. BjorkquistPFO and PAO2026-03-3016$27.49
$439.84Sell
Nicole S. WhiteChief Manufacturing Officer2026-03-30188$26.65
$5.01kSell
Nicole S. WhiteChief Manufacturing Officer2026-03-309$27.49
$247.41Sell

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Net Insider Buy/Sell (L12M) Ownership

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ASMB Shareholders

What type of owners hold Assembly Biosciences Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Gilead Sciences Inc28.40%4,505,391$125.34MInstitution
Gilead Sciences Inc28.40%4,505,391$125.34MInsider
Ecor1 Capital Fund Qualified LP13.63%2,162,029$60.15MInsider
Alexander Schornstein11.55%1,832,405$50.98MInsider
Adam Zlotnick8.33%1,321,009$36.75MInsider
Farallon Capital Management LLC7.74%1,227,590$34.15MInstitution
Ra Capital Management LP6.43%1,020,410$28.39MInstitution
Commodore Capital LP6.30%1,000,000$27.82MInstitution
Janus Henderson Group PLC5.28%837,925$23.31MInstitution
Derek A. Small5.22%828,791$23.06MInsider

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ASMB vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
ASMB52.43%47.57%Net SellingNet Selling
STTK58.73%20.75%Net Buying
FULC70.01%29.99%Net Selling
CABA68.49%3.91%Net Buying
RGNX76.16%23.84%Net SellingNet Selling

Assembly Biosciences Stock Ownership FAQ

Who owns Assembly Biosciences?

Assembly Biosciences (NASDAQ: ASMB) is owned by 86.08% institutional shareholders, 78.10% Assembly Biosciences insiders, and 0.00% retail investors. Gilead Sciences Inc is the largest individual Assembly Biosciences shareholder, owning 4.51M shares representing 28.40% of the company. Gilead Sciences Inc's Assembly Biosciences shares are currently valued at $133.13M.

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