Anthropic Confidentially Files for IPO at ~$1 Trillion Valuation

Summary

Anthropic confidentially filed for an initial public offering with the SEC on June 1, 2026, the most concrete signal yet that the Claude maker intends to test public markets while the AI build-out is still in full swing. The confidential route lets Anthropic gather regulatory feedback before any public S-1, and the company was explicit that an actual listing "will depend on market conditions and other factors" — no share count or price has been set. The filing follows the recent $65 billion Seri