Definitive Healthcare Corp. ("Definitive Healthcare") (Nasdaq: DH), an industry leader in healthcare market data and analytics, today announced that its Board of Directors has appointed Clay Ritchey as the Company’s next Chief Executive Officer and as a member of the Board of Directors, each effective September 8, 2026. Mr. Ritchey succeeds Kevin Coop, who departed as CEO and as a member of the Board of Directors, effective August 31, 2026. Mr. Coop had served as CEO since June 2024.