Sanofi to Acquire Dynavax, Adding a Marketed Adult Hepatitis B Vaccine and Phase 1/2 Shingles Candidate to the Pipeline [Yahoo! Finance]
Sanofi - American Depositary Shares (SNY)
US:NYSE Investor Relations:
sanofi.com/en/investors
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Source: Yahoo! Finance
EMERYVILLE, Calif. Dec. 24, 2025 /PRNewswire/ -- Sanofi announced today that it has entered into an agreement to acquire Dynavax Technologies Corporation (Nasdaq: DVAX), a publicly traded vaccines company with a marketed adult hepatitis B vaccine (HEPLISAV-B®) and a 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 additional vaccine pipeline projects. "Dynavax enhances Sanofi's adult immunization presence b
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- Sanofi to Buy Dynavax to Boost Vaccines Business [Yahoo! Finance]Yahoo! Finance
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- Sanofi to Buy Dynavax for $2.2B to Boost Adult Vaccine Franchise [Yahoo! Finance]Yahoo! Finance
- BP to sell 65% of Castrol stake, Sanofi's $2.2B deal for Dynavax [Yahoo! Finance]Yahoo! Finance
- BP to sell 65% of Castrol stake, Sanofi's $2.2B deal for Dynavax [Yahoo! Finance Canada]Yahoo! Finance Canada
SNY
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