Prognosis

Pfizer, Moderna Sued by Alnylam in New Fight Over Covid Shots

Biotech company claims to have developed crucial technology
Legal action adds to battles over credit for vaccines’ origins

Pfizer-BioNTech Covid-19 vaccine
Photographer: Roger Kisby/Bloomberg

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By Angelica Peebles, Riley Griffin, and Tina Davis (BGOV)

March 17, 2022 at 12:07 PM UTC

Updated on

March 17, 2022 at 2:26 PM UTC

This article is for subscribers only.

Alnylam Pharmaceuticals Inc. said it had filed lawsuits against Pfizer Inc. and Moderna Inc., alleging that the companies had infringed its patents for their Covid-19 vaccines.

The biotechnology company claimed that lipid nanoparticle technology it developed was an important component of the vaccines, which have been given to millions of Americans and generated billions in revenue for Pfizer and Moderna. Alnylam said it is seeking damages.