Anthropic files IPO prospectus for about 825 million Class A shares at $70–$78

This is a valid, forward-looking IPO development rather than market-performance commentary: an SEC filing creates new information about Anthropic’s prospective public-market access, capital formation, dilution and investor access. The reported terms distinguish approximately 801,351,354 Class A shares sold by Anthropic from approximately 23.65 million shares offered by existing holders, for roughly 825 million shares overall. The $70–$78 price range and share count are draft terms subject to change, and the reported $1 trillion valuation is a target rather than a confirmed valuation. Importance is high because this is a major IPO filing, while surprise is moderated because Anthropic’s IPO process and prospective listing had already been telegraphed. Confidence is high but below the maximum because the terms were provisional and earlier reported figures had been retracted or corrected. The timestamp is estimated from the first reports on November 10, 2026, rather than an explicitly stated SEC filing time. Stakeholders are limited to Anthropic’s proposed ticker, the intended listing venue, named underwriters and direct cloud counterparties; broad semiconductor, software and infrastructure beneficiaries, as well as reported but unconfirmed prospective cornerstone investors, are excluded.