January 5, 2022 Minori Koshiji Rosales, MD, PhD c/o Sesen Bio, Inc. 245 First St., Suite 1800 Cambridge, Massachusetts 02142 Dear Minori: It is my pleasure to offer you the position of Chief Development Officer at Sesen Bio (the “Company” or “Sesen...Letter Agreement • August 25th, 2022 • Sesen Bio, Inc. • Pharmaceutical preparations • Massachusetts
