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Confidential S-1 filed

Anthropic IPO: valuation, timeline and what the Claude maker's listing means

Anthropic has filed confidentially and is being priced above $2 trillion in pre-IPO secondary markets — more than double its last agreed private round. The S-1 is the missing piece.

Last reviewed 20 September 2026 · Compiled from public reporting, not from an exchange filing feed

Sector
Artificial intelligence
Exchange
Nasdaq (reported)
Expected window
Q4 2026 (reported)
Last valuation
$965B post-money (Series H, May 2026)
Reported target
~$2T reported IPO target
Revenue signal
Run-rate above $65B by end of July 2026
Backers
Altimeter Capital, Dragoneer, Greenoaks
Ratings
F 78 · H 99
Fundamental strength78/100
Hype score99/100
Fundamental B
Super Hyped

Where the listing stands

Anthropic filed its IPO paperwork confidentially on 1 June 2026, with Morgan Stanley and Goldman Sachs reported as lead bookrunners and JPMorgan joining the syndicate. Nasdaq has been reported as the chosen venue. Share count and pricing have not been set publicly, and until the S-1 is released no audited financials are available to public investors. A confidential filing starts the regulatory clock but commits the company to no date.

Valuation: the gap between private and speculative

The last agreed valuation is $965 billion post-money, set by a $65 billion Series H that closed at the end of May 2026 and was co-led by Altimeter Capital, Dragoneer, Greenoaks and Sequoia Capital. Pre-IPO speculation markets have since priced the company above $2 trillion — more than a trillion dollars above anything an investor has actually agreed to pay. That gap is the single most important number to watch when the prospectus finally prices.

The revenue trajectory

Anthropic's annualised run-rate crossed $47 billion in May 2026 and passed $65 billion by the end of July, driven overwhelmingly by enterprise adoption of Claude. Reported first-half 2026 revenue of roughly $16.2 billion is close to four times the full prior year. Growth of that shape is rare at this scale — but run-rate is not revenue, and the losses that come with frontier-model compute are reportedly very large.

What to look for in the S-1

Three disclosures will decide how this deal prices: the real (not run-rate) revenue and its concentration across enterprise customers, the compute commitments to infrastructure partners and cloud providers and how those obligations are booked, and the free float. A small float against a $2 trillion headline valuation can produce violent first-week pricing in either direction.

Strengths

  • Enterprise adoption of Claude is translating into some of the fastest revenue growth ever recorded at this scale
  • An unusually deep investor base, including Amazon, Google and major long-only institutions
  • Strategic infrastructure partnerships with Micron, Samsung and SK hynix supporting compute supply
  • A reported Nasdaq listing with tier-one underwriters, which supports orderly book-building

Risks

  • Pre-IPO speculative pricing sits more than $1T above the last agreed private round
  • Reported losses are very large and compute costs scale with usage
  • No audited public financials exist until the S-1 is released
  • Frontier-AI regulation and safety obligations could change the cost base quickly
  • Direct competition with OpenAI, Google and Meta for talent, compute and enterprise accounts

Anthropic IPO — frequently asked questions

When is the Anthropic IPO?

No date is confirmed. Anthropic filed confidentially on 1 June 2026 and reporting has pointed to a listing as soon as Q4 2026, but the company has published no pricing date.

What exchange will Anthropic list on?

Nasdaq has been reported as the chosen venue. The ticker has not been disclosed.

What valuation is Anthropic targeting?

Reporting points to a target near $2 trillion, against a last agreed private valuation of $965 billion from the May 2026 Series H.

Sources

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Figures are drawn from public reporting on the dates shown and can change without notice. Nothing here is investment advice; capital is at risk.