Assembly Biosciences, Inc., a biotechnology company, develops therapeutic candidates for the treatment of viral diseases worldwide. Its pipeline includes long-acting helicase-primase inhibitors candidates, including ABI-5366 and ABI-1179, which are in Phase 1 clinical studies for recurrent genital herpes; and ABI-6250, an orally bioavailable hepatitis delta virus entry inhibitor that is in Phase 1a clinical study for the treatment of chronic hepatitis delta virus (HDV) infection. The company also develops ABI-4334, an orally bioavailable next generation capsid assembly modulator that is in Phase 1b study clinical trial for the treatment of chronic hepatitis B virus (HBV) infection; and ABI-7272, an oral broad-spectrum NNPI for the treatment of transplant-associated herpesviruses. It has an option, license, and collaboration agreement with Gilead Sciences, Inc. for the research and development of virology therapies. The company was formerly known as Ventrus Biosciences, Inc. and changed its name to Assembly Biosciences, Inc. in June 2014. Assembly Biosciences, Inc. was incorporated in 2005 and is headquartered in South San Francisco, California. Show more

Two Tower Place, South San Francisco, CA, 94080, United States

https://www.assemblybio.com

Biotechnology

Healthcare

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Market Cap

458M

52 Wk Range

$7.75 - $39.71

Previous Close

$28.87

Open

$28.57

Volume

70,467

Day Range

$27.25 - $28.89

Enterprise Value

218.5M

Cash

232.6M

Avg Qtr Burn

-15.13M

Insider Ownership

32.21%

Institutional Own.

59.66%

Qtr Updated

09/30/25

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Drug & Indication	Stage & Event	Catalyst Date
ABI-5366 Details Recurrent Genital Herpes Simplex Type 2	Phase 1b Data readout	Some catalyst date You must sign up to see the catalyst details. You must sign up to see the catalyst details. You must sign up to see the catalyst details. You must sign up to see the catalyst details.Sign up now.
ABI-1179 Details Long-acting herpes simplex virus (HSV)	Phase 1b Data readout	Some catalyst date You must sign up to see the catalyst details. You must sign up to see the catalyst details. You must sign up to see the catalyst details. You must sign up to see the catalyst details.Sign up now.
ABI-4334 Details Chronic hepatitis B virus (HBV)	Phase 1 Update	Some catalyst date You must sign up to see the catalyst details. You must sign up to see the catalyst details. You must sign up to see the catalyst details. You must sign up to see the catalyst details.Sign up now.
ABI-6250 Details Chronic hepatitis delta virus (HDV)	Phase 1a Data readout	Some catalyst date You must sign up to see the catalyst details. You must sign up to see the catalyst details. You must sign up to see the catalyst details. You must sign up to see the catalyst details.Sign up now.
ABI-H3733 Details Liver disease, Hepatitis B, Liver infection	Failed Discontinued	Some catalyst date You must sign up to see the catalyst details. You must sign up to see the catalyst details. You must sign up to see the catalyst details. You must sign up to see the catalyst details.Sign up now.
Vebicorvir (VBR, ABI-H0731) Details Liver infection, Chronic liver disease, Hepatitis B	Failed Discontinued	Some catalyst date You must sign up to see the catalyst details. You must sign up to see the catalyst details. You must sign up to see the catalyst details. You must sign up to see the catalyst details.Sign up now.
ABI-H2158 Details Liver infection, Liver disease, Hepatitis B	Failed Discontinued	Some catalyst date You must sign up to see the catalyst details. You must sign up to see the catalyst details. You must sign up to see the catalyst details. You must sign up to see the catalyst details.Sign up now.