Anthropic Valuation Estimates Differ by $384 Billion at IPO Range High

For Anthropic, using the $78 upper end of the proposed IPO range, the outstanding-share estimate is about $1.02 trillion, while the fully diluted calculation is about $1.404 trillion.

The first estimate counts about 13.087 billion outstanding economic-interest shares after the IPO and a $26 billion private placement. Multiplying that count by $78 gives about $1.02 trillion. The $78 figure is the upper end of the proposed price range, not a confirmed final IPO price.

The fully diluted calculation uses roughly 18 billion shares. Applying the $78 upper end of the proposed price range to that count produces about $1.404 trillion, roughly $384 billion above the outstanding-share estimate. These are estimates based on different share counts; they do not establish Anthropic’s final IPO price or share total.

The fully diluted count includes unexercised options, unvested restricted stock units (RSUs), and shares reserved for equity incentive and employee stock purchase plans. Unvested RSUs and shares reserved for those plans are not currently issued, but are included as potential shares in the estimate.

The fully diluted value is a theoretical maximum and does not mean all potential shares would be issued at the IPO. Actual dilution generally occurs gradually over several years.