 CohBar, Inc. CWBR, a clinical stage biotechnology company developing mitochondria based therapeutics to treat chronic diseases and extend healthy lifespan, was added to the US small-cap Russell 2000 Index during the 2020 Russell Indexes reconstitution, effective after the US market close on June 26th. Membership in the Russell 2000 Index, which remains in place for at least one year, is based on membership in the broad-market Russell 3000 Index. 