Anthropic IPO Documents Show Both Lots of Growth and High Commitments

Anthropic's IPO filings show a company growing at exceptional speed while taking on very large infrastructure commitments and retaining concentrated founder control.

• Third-quarter sales reached $17.0 billion through September, up from $11.6 billion in the second quarter and $1.3 billion a year earlier.
• Anthropic generated more sales in that quarter than during all of 2025, yet reported a $567 million operating loss after renting costly computing capacity at short notice.
• Adjusted for charity expenses and share-based compensation, the company reported approximately $2.5 billion of underlying operating profit.
• Computing contracts and data-centre leases total roughly $895 billion through 2035, about 25 times 2025 sales, with around $70 billion due within twelve months. Amazon, Google, Microsoft and SpaceX are major counterparties as well as shareholders, sales partners or rivals.
• Anthropic held $132 billion in cash and short-term investments, generated $6.6 billion of operating cash in 2026 so far, and could raise another $100 billion in the IPO. The filing also gives the seven founders 50.1% of voting rights and says safety rules could delay model releases.

Takeaway: The IPO offers exposure to rapid AI revenue growth, while investors must assess substantial long-term capacity commitments, volatile operating costs, governance limits and execution risks around model releases.