Shares of Novavax (NVAX) rose 13.7% on May 20 after the activist investor Shah Capital Management decided to withdraw its proxy campaign to remove the company’s three board members. This withdrawal comes a week after Novavax signed a multi-billion-dollar deal with pharma giant Sanofi (SNY) , breathing new life into the former, which had been facing uncertainties in its business for a long time. This deal even allowed Novavax to do away with its previous concerns about its ability to continue as a ‘going con ...