At Droia Ventures, Rez Halse focuses on genetic disease and oncology investments from Boston, building on a career that combined hands-on science with company creation—starting as Head of Cell Biology at Xcellsyz, then leading Merck's corporate venture arm and business development across Europe, the US West Coast, and Asia Pacific, and later running RA Capital's company creation incubator. His track record includes helping build early therapeutics companies such as Imago, Visterra, Tidal, Alector, Spero, and Translate Bio.
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Droia Ventures operates less like a typical capital provider and more like a company-building platform, running its own scientific arm, Droia Labs, to validate ideas for early drug-development companies, while staying narrowly focused on oncology and genetic disease through separate funds for each area. Its team includes veteran biotech operators—such as a former architect of major industry deals and founders of past rare-disease companies—who stress patient-experience insight in their investment decisions and favor building strong, opinionated leadership teams early rather than waiting until it's financially comfortable.
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