Investors are valuing Elon Musk's Neuralink at $42 billion on secondary markets

Source: Business Insider

Neuralink cofounder Elon Musk. Fabrice COFFRINI / AFP via Getty ImagesInvestors are valuing the brain chip startup Neuralink at $42 billion in secondary markets. Neuralink was last valued at $9 billion in a funding round over a year ago.