Sanofi Agrees to Buy Dynavax for $2.2 Billion After FDA MS Drug Rejection [Yahoo! Finance]
Sanofi - American Depositary Shares (SNY)
US:NYSE Investor Relations:
sanofi.com/en/investors
Company Research
Source: Yahoo! Finance
about $2.2 billion in cash, paying $15.50 per share, a 39% premium to the prior close, as it looks to broaden its vaccines portfolio beyond its flu franchise. The announcement came shortly after US regulators rejected Sanofi's experimental multiple sclerosis drug tolebrutinib, a setback that weighed on sentiment and briefly pushed Sanofi shares lower in Paris trading. Dynavax shares surged in premarket New York trading, while Sanofi stock has been down for the year through Tuesday's close. Warning! GuruFocus has detected 4 Warning Sign with DVAX. Is DVAX fairly valued? Test your thesis with our free DCF calculator. The Dynavax deal adds a marketed hepatitis B vaccine in the US and an experimental shingles vaccine in early human testing, potentially strengthening Sanofi's position in adult immunization across influenza, RSV, meningitis and pertussis. Shingles vaccines have been meaningful revenue contributors for rivals, which could explain Sanofi's interest despite challenges in
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News
- Delayed MS Decision and Trial Miss Add to Sanofi's R&D Challenges [Yahoo! Finance]Yahoo! Finance
- Honoring 45 Organ, Eye and Tissue Donors, Living Donors and Recipients: The 2026 OneLegacy Donate Life Rose Parade® Float Celebrates 23 Years of Participation in the Iconic Rose Parade® [Yahoo! Finance]Yahoo! Finance
- Sanofi to Buy Dynavax to Boost Vaccines Business [Yahoo! Finance]Yahoo! Finance
- What Sanofi Is Getting Through The Acquisition Of Dynavax [Seeking Alpha]Seeking Alpha
- Sanofi to Buy Dynavax for $2.2B to Boost Adult Vaccine Franchise [Yahoo! Finance]Yahoo! Finance
SNY
Sec Filings
- 12/29/25 - Form 6-K
- 12/29/25 - Form 6-K
- 12/23/25 - Form 6-K
- SNY's page on the SEC website