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-5336 and ABI-1179, which are in Phase 1a/1b clinical studies for recurrent genital herpes; ABI-4334, a capsid assembly modulator designed to disrupt the replication cycle of hepatitis B virus that is in Phase 1b clinical study; and ABI-6250, an orally bioavailable hepatitis delta virus entry inhibitor that is in Phase 1a clinical study. The company also develops ABI-7423, an oral broad-spectrum non-nucleoside polymerase inhibitor that targets transplant-related 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

Location: Two Tower Place, South San Francisco, CA, 94080, United States | Website: https://www.assemblybio.com | Industry: Biotechnology | Sector: Healthcare

Market Cap

574.6M

52 Wk Range

$7.75 - $37.71

Previous Close

$36.33

Open

$36.03

Volume

19,134

Day Range

$35.31 - $36.27

Enterprise Value

349.9M

Cash

232.6M

Avg Qtr Burn

-13.93M

Insider Ownership

32.30%

Institutional Own.

50.82%

Qtr Updated

09/30/25

Drug Pipeline

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Drug & Indication	Stage & Event	Catalyst Date
ABI-6250 Details Chronic hepatitis delta virus (HDV)	Phase 2 Initiation	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-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-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.
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.
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.