2010
$40M
from 6 investors over 6 rounds
Sesen Bio raised $40M on March 1, 2015
Investors: Cowen Inc.
Sesen Bio raised $20M on May 8, 2012
Investors: Third Rock Ventures, JAFCO and Flagship Ventures
Sesen Bio raised $35M on March 9, 2010
Investors: Flagship Ventures and Third Rock Ventures