Pfizer sues former employee for alleged trade secret theft

An image showing a Pfizer sign

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Chun Xiao Li downloaded thousands of confidential documents before resigning

Pfizer has filed a lawsuit against a former employee, Chun Xiao Li, alleging she stole trade secrets relating to the company’s Covid-19 vaccine, as well as Bavencio (avelumab) and elranatamab – a marketed and an experimental monoclonal antibody treatment for cancer.