HealthStream, Inc. (NasdaqGS:HSTM) acquired Substantially All Assets of Rievent Technologies for $4 million on December 1, 2021. The consideration is paid in cash subject to customary purchase price adjustments. HealthStream, Inc. (NasdaqGS:HSTM) completed the acquisition of Substantially All Assets of Rievent Technologies on December 1, 2021.