 LEXINGTON, Mass., June 25, 2021 PRNewswire -- Curis, Inc. NASDAQ: CRIS, a biotechnology company focused on the development of innovative therapeutics for the treatment of cancer, today announced that it will be added to the Russell 2000, 3000 and Microcap indexes at the conclusion of the 2021 Russell indexes annual reconstitution, effective after the U.S. market opens on June 28, 2021, according to a preliminary list of additions posted June 4, 2021. 