Court Denies Pfizer and Moderna Requests to Dismiss Bayer Vaccine Patent Lawsuit

Key Facts

1A court denied requests by Pfizer, BioNTech, and Moderna to dismiss a patent infringement lawsuit filed by Bayer.

A court denied requests by Pfizer, BioNTech, and Moderna to dismiss a patent infringement lawsuit filed by Bayer. Investing.com reported that the ruling allows the case to proceed, following Bayer's claims that the mRNA COVID-19 vaccines developed by these companies infringe on its existing patent technology.

PFE closed at $28.67 on September 25, 2026, while BAYRY closed at $14.32 on the same date. The continuation of this litigation introduces potential risks regarding royalty obligations or significant settlements that could impact the long-term margins of the involved pharmaceutical majors.