Anthropic's 7 cofounders each stand to gain tens of billions in IPO

Anthropic's seven cofounders hold massive, nearly equal equity stakes ahead of the AI company's IPO, with each poised to earn tens of billions of dollars at a projected valuation exceeding $1.5 trillion. Chief Compute Officer Tom Brown owns the largest share, slightly surpassing CEO Dario Amodei. The S-1 filing reveals Brown holds about 244 million shares, with the other six cofounders owning between 232 million and 243 million shares each. A special Class F share will grant the cofounders 50.1% of total voting power, and each has pledged to donate 80% of their personal equity to charity. Major investors Amazon and Google will each own over 5% post-IPO, potentially gaining more than $75 billion each. Other significant shareholders include Lightspeed Venture Partners, Spark Capital, Menlo Ventures, and Iconiq, alongside firms like Sequoia Capital and Founders Fund.