About
Siobhan Nolan Mangini is a Partner at Venrock who invests in early-stage healthcare and technology companies. She supports portfolio companies through strategic guidance, financing strategies, business development, and operational support.
Experience
- VenrockPartnercurrent2025 — present
- Cityblock HealthMember Board of Directorscurrent2024 — present
- Alight SolutionsMember Board of Directorscurrent2024 — present
- Virta HealthMember Board of Directorscurrent2023 — present
- SmithRxMember Board of Directorscurrent2023 — present
- Marathon HealthMember Board of Directors2021 — 2026
- Delflorien LabsFounder2024 — 2025
- January VenturesOperator Network2018 — 2025
- NGM BiopharmaceuticalsPresident & Chief Financial Officer2022 — 2023
- NGM BiopharmaceuticalsChief Financial Officer2020 — 2022
- Artemis HealthMember Board of Directors2020 — 2022
- Castlight HealthAdvisor2020
- Castlight HealthPresident & CFO2019 — 2020
- Castlight HealthChief Financial Officer2016 — 2019
- Castlight HealthVice President, Finance & Business Operations2015 — 2016San Francisco
- Castlight HealthSenior Director, Operations and Financial Planning2014 — 2015
- Castlight HealthDirector, Strategy & Business Development2012 — 2014
- Bain & CompanyCase Team Leader2009 — 2012
- Acumen FundPortfolio Intern2009
- Bain & CompanySummer Associate2008
Education
- Stanford University Graduate School of BusinessMBA
- Harvard Kennedy SchoolMPA
- The Wharton SchoolBS Econ, Finance
Skills & more
Cross-functional Team Leadership13Venture Capital21Corporate Development11Due Diligence14Private Equity13Business Strategy13Business Development9Start-ups3Finance2Portfolio Management2Financial Modeling3Investor Relations2
+5 more
ForecastingExecutive ManagementStrategyStrategic PlanningLeadershipFrom Siobhan's professional profile.
Deals · 1
Smith HealthBoard seat
via Venrock · filed Feb 2024 · $60M raise
Attribution from SEC filings, press coverage, and firm rosters.
