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Assembly Biosciences (ASMB) investor relations material

Assembly Biosciences Q2 2025 earnings summary

Complete event summary combining all related documents: earnings call transcript, report, and slide presentation.
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Q2 2025 earnings summary6 Aug, 2025

Executive summary

  • Focused on developing therapeutics for serious viral diseases, advancing four clinical candidates in 2025, and collaborating with Gilead Sciences.

  • Pipeline includes helicase-primase inhibitors for genital herpes, an HDV entry inhibitor, a next-gen HBV capsid modulator, and a broad-spectrum NNPI for transplant-related herpesviruses.

  • Reported positive interim and topline results for several Phase 1 studies, including hepatitis and herpes programs.

  • Presented new clinical and preclinical data at major scientific conferences, highlighting HSV and HBV/HDV progress.

  • Gilead collaboration provides funding, opt-in rights, milestone/royalty payments, and increased equity stake.

Financial highlights

  • Collaboration revenue was $9.6M for Q2 2025, up 13% year-over-year; $19.0M for the six months, up 33%.

  • Cash, cash equivalents, and marketable securities totaled $75.0M as of June 30, 2025, down from $91.0M at March 31, 2025.

  • Net loss for Q2 2025 was $10.2M ($1.33/share), improved from $11.2M ($1.98/share) in Q2 2024.

  • Research and development expenses for Q2 2025 were $16.1M, slightly down year-over-year due to lower ABI-6250 costs.

  • Operating cash outflow was $40.2M for the first half of 2025, up from $35.5M in the prior year.

Outlook and guidance

  • Cash runway projected to fund operations into mid-2026; substantial doubt exists about ability to continue beyond that without new funding.

  • Plans to seek further funding through equity or collaboration payments; future capital needs depend on pipeline progress and Gilead outcomes.

  • Proof-of-concept Phase 1b data for ABI-5366 and ABI-1179 in genital herpes expected by fall 2025.

  • ABI-6250 preclinical data to be presented at the International HBV Meeting in September 2025.

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Frequently asked questions

Assembly Biosciences, Inc. is a biopharmaceutical company focused on developing small molecule antiviral therapeutics. It is primarily engaged in the discovery and development of treatments targeting hepatitis B virus (HBV) and hepatitis delta virus (HDV), including a portfolio of HBV core inhibitors and other novel antiviral compounds aimed at managing chronic infections. Additionally, the company explores therapies for herpesviruses, with programs advancing long-acting inhibitors and other non-nucleoside polymerase inhibitors intended for transplant-associated infections and other serious disease conditions. Assembly Biosciences is headquartered in South San Francisco, California, and its shares are listed on the NASDAQ.

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