Anthropic Raises $65 Billion at a $965 Billion Valuation
Anthropic raised $65 billion in a Series H round at a $965 billion post-money valuation in May 2026, before later moving into formal IPO preparation.
Anthropic announced on 28 May 2026 that it had raised $65 billion in Series H financing at a $965 billion post-money valuation.
A step-change in private valuation
The financing followed Anthropic’s $30 billion Series G round earlier in the year and created one of the largest private-company valuation reference points in the AI market.
- Round: Series H.
- Capital raised: $65 billion.
- Post-money valuation: $965 billion.
- Lead investors: Altimeter Capital, Dragoneer, Greenoaks and Sequoia Capital.
Public-market preparation
Anthropic subsequently progressed towards a public offering. The company announced on 1 June 2026 that it had confidentially submitted a draft S-1 to the SEC. Reuters later reported on disclosures contained in Anthropic’s IPO prospectus, including its revenue growth, infrastructure commitments and financing arrangements. Those disclosures increase transparency but do not turn the earlier private valuation into a public-market price.
What to monitor next
- Changes to the IPO timetable or prospectus disclosures.
- Any revised indication of deal size or valuation as the public process develops.
- Additional infrastructure financing that changes Anthropic’s capital structure.
- Employee or investor liquidity events separate from the IPO process.
MarketNEXXT therefore treats the financing and IPO process as separate signals. See what an IPO filing means, private-company valuations and the wider company universe.
Sources: Anthropic Series H announcement, 28 May 2026; Anthropic confidential draft S-1 announcement, 1 June 2026; Reuters reporting on subsequent IPO prospectus disclosures.
This is source-led market intelligence. It does not indicate that Anthropic shares are currently available through MarketNEXXT.