HealthStream Announces First Quarter 2025 Results Page 1 May 5, 2025 Exhibit 99.1 Contact: Scott A. Roberts Chief Financial Officer (615) 301-3182 ir@healthstream.com Media: Mollie Condra, Ph.D. Head, Investor Relations & Communications (615) 301-3237 mollie.condra@healthstream.com First Quarter 2025 Financial Results: Adjusted EBITDA was $16.2 million for the first quarter of 2025, down 5.0$17.1 million in the first quarter of 2024. First Quarter 2025 Compared to First Quarter 2024 Revenues for the ...