Each of the seven co-founders plans to sell exactly the same number of shares in the IPO, which would bring each of them about $250 million in cash at the midpoint of the price range while leaving the group in control of the company. Each of Anthropic's seven co-founders plans to sell 3,378,378 shares during the company's IPO, potentially earning nearly $250 million each at a midrange price of $74 per share.