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Anthropic Files S-1: Symbol ANT, Heading for Nasdaq

Anthropic filed a registration statement on Form S-1 with the US SEC on 26 October 2026 for a proposed IPO: Class A common stock is intended to list on the Nasdaq Global Select Market under the symbol ANT. The number of shares and the price range have not been determined, and the registration statement is not yet effective — this is a filing, not a listing

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Features

  • ✓ Filed Form S-1 with the SEC on 26 October 2026, the first formal step toward going public
  • ✓ Intends to list Class A common stock on the Nasdaq Global Select Market under the symbol ANT
  • ✓ Share count and price range are undetermined, and the registration statement is not yet effective, so shares cannot be sold
  • ✓ The announcement names the prospectus channels: the Prospectus Departments at Goldman Sachs and Morgan Stanley
  • ✓ The announcement carries full legal language stating the filing is not an offer to sell or a solicitation to buy

How to Use

  1. Watch Anthropic's S-1 and its amendments on SEC EDGAR — that is the primary source
  2. Wait until the registration statement goes effective, then read the final prospectus for share count and price
  3. Any allocation has to go through a broker; ignore claims of internal quotas
  4. Track the roadshow and pricing window, and treat anything about a set price as pending until an SEC filing confirms it

FAQ

Has Anthropic gone public yet?

No. 26 October 2026 was the S-1 filing only. The announcement states a registration statement has been filed with the SEC but has not yet become effective. Source: https://www.anthropic.com/news/s1-sec

What is the ticker?

The announcement says Class A common stock is intended to list on the Nasdaq Global Select Market under the symbol ANT.

Is the offer price set?

No. The filing states the number of shares and the price range have not yet been determined. The final prospectus is the document that settles it.

Why does this matter beyond the markets?

Anthropic builds Claude, so a public listing forces financial disclosure: revenue mix, compute costs and losses get an official number. For teams building on the Claude API that makes pricing and roadmap easier to anticipate.

How long until the IPO happens?

Anthropic published no timetable. SEC review, amendments, roadshow and pricing all have to happen first, and any specific date without an SEC document is speculation.