Florent Gros, Founder of Priothera

About Florent Gros

Florent Gros is the Co-founder and CEO of Priothera, a late-stage biopharmaceutical company focused on developing innovative oncology treatments. The company specializes in creating therapies for hematologic cancers, particularly acute myeloid leukemia (AML), using sphingosine-1-phosphate (S1P) receptor modulators. Priothera successfully closed a Series A financing round of €30 million in October 2020 and received a European Union grant of nearly €685,000 in July 2025 for its MOTRANS clinical trial.

Florent Gros at a glance

• Company: Priothera
• Total raised: $30M
• Latest round: Series A
• Investors: Fountain Healthcare Partners, HealthCap, Tekla CapitalManagement, LLC, EarlyBird Venture Capital
• Location: Saint-Louis, France

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