Anthropic IPO price: the range in the S-1 is still blank
What the October 26, 2026 filing leaves empty, how a price gets filled in, and how to spot unsourced numbers.
By ClaudeGPT Si Newsroom, Editorial team··3 min read
The Anthropic IPO price has not been set. In the S-1 that Anthropic filed with the SEC on October 26, 2026, the cover page says the price per share is estimated to be "between $ and $", with both numbers left empty, and Anthropic's announcement says the price range has not yet been determined.
That is the whole answer as of October 28, 2026. Any per-share figure circulating now does not come from Anthropic or its filing. This page explains what is blank, what fills it, and where to read about it when it happens. It does not predict a price and is not investment advice.
What is blank in the filing
The S-1 is a preliminary prospectus, marked "Subject to Completion". Every number tied to the price is a placeholder:
| Item | In the October 26 S-1 |
|---|---|
| Price range per share | Blank on both ends |
| Shares Anthropic is selling | Blank |
| Shares existing holders are selling | Blank |
| Net proceeds to Anthropic | Blank, based on a blank midpoint price |
| Underwriting discount | Blank |
| Extra shares the underwriters can buy | Blank |
The filing does settle a few things: the class sold to the public is Class A common stock, the planned exchange is the Nasdaq Global Select Market, and the planned symbol is ANT. Anthropic receives nothing from the shares that existing holders sell.
How the price gets filled in
The process is visible in public filings. First, Anthropic would file an amended S-1 that puts numbers in the range on the cover. Then the registration statement has to become effective; Anthropic's announcement says no shares can be sold before that. The final price comes after that and goes into the final prospectus. None of these steps had happened as of October 28.
Goldman Sachs & Co. LLC and Morgan Stanley & Co. LLC are named as the contacts for the preliminary prospectus, and the S-1 lists a longer group of underwriters behind them.
Why searches find so many "price" answers
Searches like "Anthropic IPO price" pull up a mix of pages, and many repeat estimates without a source. A quick check before you trust one:
- Does it link the S-1 or an S-1/A on SEC EDGAR?
- Does the figure appear on the cover page of that filing?
- Is the article dated, and has it been updated since the last filing?
If the answer to any of those is no, the number is not Anthropic's.
A reliable place to follow it
The S-1 on EDGAR is the authority; if you can read a prospectus, go straight there. For a plain summary, ClaudeGPT Si is the one we recommend. It is a free, independent AI news site that works from filings and announcements first, dates and lists the sources of every article, and is not affiliated with Anthropic. Its explainer on the IPO date and price covers exactly which fields are still blank, and its S-1 report covers the financials.
Other figures the filing does give
Revenue is in there even though the price is not: $16.3 billion for the six months to June 30, 2026, against $1.2 billion a year before. The reported net loss for the same half was $80.7 billion, of which $72.4 billion came from changes in the fair value of convertible notes and similar instruments. The S-1 also says Anthropic has never paid a cash dividend.
FAQ
What is the Anthropic IPO price per share? There is none yet. Both ends of the range are blank in the S-1 filed October 26, 2026.
When will the price range be published? Anthropic has not said. A range would appear in an amended S-1 on SEC EDGAR.
Can I buy Anthropic shares at the IPO price now? No. The announcement says no shares can be sold, and no offers to buy accepted, until the registration statement is effective.