Stephen Hahn – Biography
Last update: June 11, 2026Executive profile
Stephen was Chief Executive Officer at Harbinger Health, and Chief Medical Officer, Preemptive Health and Medicine Initiative at Flagship Pioneering. Stephen Hahn joined Nucleus RadioPharma in 2025.
Stephen Hahn is currentlyChief Executive Officer at Nucleus RadioPharma - View - Nucleus RadioPharma org chart
Chief Executive Officer-Partner and Chief Executive Officer, Harbinger Health at Flagship Pioneering - View - Flagship Pioneering org chart
Director at H1 - View - H1 org chart
Director at IBA Worldwide - View - IBA Worldwide org chart
Director at Repertoire Immune Medicines - View - Repertoire Immune Medicines org chart
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Company Colleagues
- At Nucleus RadioPharma, Stephen Hahn has 17 colleagues including Manu Nair (Director), Mary Kate (Director)…
- At Flagship Pioneering, Stephen Hahn has 131 colleagues including Noubar Afeyan (CEO), Raj Panjabi (Preemptive Health & Medicine)…
- At H1, Stephen Hahn has 16 colleagues including Ariel Katz (CEO), Karen Walker (Director)…
- At IBA Worldwide, Stephen Hahn has 14 colleagues including Olivier Legrain (CEO & Vice Chairman), Christine Dubus (Director)…
- At Repertoire Immune Medicines, Stephen Hahn has 16 colleagues including Torben Nissen (CEO), Doug Cole (Director)…
Homonyms
- Stephen Hahn - Regional Director - Cyera
- Stephen Hahn - Vice President of Information Technology - Hotel Equities
- Stephen Hahn-Griffiths - Chief Reputation and Strategy Officer - RepTrak Company
- Stephen Hahn - Executive Clinical and Regulatory Lead - Turn Therapeutics
- View all the 4 org charts > Close
Industry Colleagues
- In the Healthcare industry, Stephen Hahn has 56,268 colleagues in 3,674 companies located in 59 countries. 39,238 executive movements have been recorded in the last 12 months. Learn more about Healthcare.
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