 New York, New York--Newsfile Corp. - October 2, 2021 - WHY: New York, N.Y., October 2, 2021. Rosen Law Firm, a global investor rights law firm, reminds purchasers of the securities of Sesen Bio, Inc. NASDAQ: SESN between December 21, 2020 and August 17, 2021, inclusive the Class Period, of the important October 18, 2021 lead plaintiff deadline.SO WHAT: If you purchased Sesen Bio securities during the Class Period you may be entitled to compensation... 