 New York, New York--Newsfile Corp. - October 18, 2021 - Bronstein, Gewirtz Grossman, LLC notifies investors that a class action lawsuit has been filed against Sesen Bio, Inc. Sesen Bio or the Company NASDAQ: SESN and certain of its officers, on behalf of shareholders who purchased or otherwise acquired Sesen Bio securities between December 21, 2020 and August 17, 2021, inclusive the Class Period. Such investors are encouraged to join this case by... 