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Press Release: Sanofi to acquire Dynavax, adding a marketed adult hepatitis B vaccine and phase 1/2 shingles candidate to the pipeline

Sanofi to acquire Dynavax, adding a marketed adult hepatitis B vaccine and phase 1/2 shingles candidate to the pipeline Paris, December 24, 2025. Sanofi announced today that it has entered into an agreement to acquire Dynavax Technologies Corporation (Dynavax), a publicly traded vaccines company with a marketed adult hepatitis B vaccine (HEPLISAV-B®) and differentiated shingles vaccine candidate. The acquisition augments Sanofi’s presence in adult immunization by bringing together Dynavax’s vacc

articleSanofi SaDecember 24, 20256/company/sanofi-sa-1/news/press-release-sanofi-to-acquire-dynavax-adding-a-marketed-adult-hepatitis-b-vaccine-and-phase-12-shingles-candidate-to-the-pipeline
Press Release: Sanofi to acquire Dynavax, adding a marketed adult hepatitis B vaccine and phase 1/2 shingles candidate to the pipeline

About this update from Sanofi Sa

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hepatitis B vaccineDynavax Technologies Corporationhepatitis BSanofishingles vaccinevaccinesChronic infectionDynavaxhepatitis B surface antigenadult vaccination