Siren Biotechnology

Turning deadly cancers into treatable diseases, backed by Founders Fund

https://wefunder.com/siren.biotechnology

Total raised on Wefunder: 4058119

Total investors: 1503

Quick facts

  • $28M raised from leading VCs including Founders Fund, Lux Capital, and more
  • Fighting the world’s second deadliest disease, cancer, with AAV immuno-gene therapy
  • Led by expert doctors and scientists from Stanford, UCSF, Duke, Mount Sinai, and Roche
  • 2025 Start Up of The Year winner at Phacilitate Advanced Therapies Week
  • $4M in competitive grant awards from the California Institute for Regenerative Medicine (CIRM)
  • Targeting clinical trials in 2026, a critical step toward FDA approval and commercialization
  • The global brain tumor therapeutics market is a $3.2B market
  • CEO featured in The Wall Street Journal, The Economist, WIRED, MIT Tech Review, and Boston Globe

Team profiles

Featured investor profiles

Siren Biotechnology

Turning deadly cancers into treatable diseases, backed by Founders Fund

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Last Funded October 2025

$4,058,119

raised from 1,503 investors
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