Alexandra Cantley, a managing partner at Polaris Partners, invests primarily in early-stage biotech and healthcare. See sector focus and contact routes.
Alexandra Cantley, a managing partner at Polaris Partners, invests primarily in early-stage biotech and healthcare, focusing on seed and Series A rounds with a distinctive thesis of backing platform technologies rather than single-asset companies. Her notable portfolio includes board roles at Auron Therapeutics, TRex Bio, EpiBiologics, and Cirrus Therapeutics, with investments spanning oncology, immunology, and diagnostics. While Polaris typically leads rounds ranging from $300K to $2.0M for her specific check size, the firm has funded companies like TRex Bio with larger Series A extensions up to $26M.
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