How A 60-Year-Old Drug Developer Built A $4.4 Billion Biotech Treating ‘Butterfly Skin Disease’

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How A 60-Year-Old Drug Developer Built A $4.4 Billion Biotech Treating ‘Butterfly Skin Disease’

forbes.com/sites/amyfeldman/2025/07/31/the-butterfly-skin-disease-centimillionaire

Longtime drug developer Suma Krishnan was 51 when she cofounded Krystal Biotech. Now the company has one gene therapy on the market and more in the works.

This story appeared on forbes.com, 2025-07-31 10:30:00.