Press Release: Sanofi to acquire Dynavax, adding a marketed adult hepatitis B vaccine and phase 1/2 shingles candidate to the pipeline
Sanofi - American Depositary Shares (SNY)
US:NYSE Investor Relations:
sanofi.com/en/investors
Company Research
Source: GlobeNewswire
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 vaccines with Sanofi’s global scale, development capabilities and commercial reach. Dynavax’s adult hepatitis B vaccine HEPLISAV-B is currently marketed in the US and is differentiated by its two-dose regimen over one month, which enables high levels of seroprotection faster than other hepatitis B vaccines, which are given in three doses over six months. The acquisition also includes Dynavax’s shingles vaccine candidate (Z-1018), which is currently in phase 1/2 clinical development and additio
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Sec Filings
- 12/23/25 - Form 6-K
- 12/22/25 - Form 6-K
- 12/15/25 - Form 6-K
- SNY's page on the SEC website