Lawrence Petit-Frère is the fund manager at Kastor Capital, a boutique biotech VC investing in seed-stage, preclinical therapeutic startups, where he oversees investments, portfolio management, regulatory compliance, and investor relations across six portfolio companies. He brings 13+ years of biopharma regulatory strategy experience from Biogen (neurodegeneration, lead on FDA/EMA/PMDA interactions and Ionis partnership), EMD Serono (Bavencio launch), Takeda (rare disease and cardiovascular), and a postdoctoral fellowship with Johnson & Johnson supporting the Tylenol portfolio. He holds a PharmD from Philadelphia College of Pharmacy and an MBA from MIT Sloan in finance and strategy.