Anthropic IPO by Country: What the Offer Filings Say

§ 01What Anthropic posted#

• The post. Anthropic’s post on X at 11:30 UTC on November 12 reads “Our initial public offering:” and links to its IPO site. The rest of it is a legal disclaimer. It had about 34,000 views when we read it at 11:43 UTC.
• The site. Anthropic’s IPO site carries a founders’ letter, the roadshow video, third-quarter figures, five customer case studies, a section on taking part, and the prospectus.
• The price date. The site says the final price “is expected to be set on November 18th (EST)”.
• The first trading day. It says “shares are expected to begin publicly trading on November 19th (EST)”. Both dates are subject to regulatory clearance, the site says.
• The filings. Five free writing prospectuses reached the SEC between 01:35 UTC on November 11 and 11:08 UTC on November 12: the IPO site, the UK retail offer, the Australian and Canadian prospectuses, the European and Swiss prospectus and the Japanese registration statement.
• No new price. The newest amendment to the S-1 is still Amendment No. 2 of November 10. Our price range record covers it.

§ 02The offers, country by country#

• United States. The site says “You can request shares through a participating brokerage platform.” Its section on taking part shows the logos of five brokerages: Charles Schwab, E*TRADE, Fidelity, Robinhood and SoFi. The shares are to trade on Nasdaq under the symbol ANT.
• United Kingdom. The UK filing says an offer opened on November 10 to people “resident and physically located in the United Kingdom”. It runs on a platform operated by RetailBook under the rules of the Financial Conduct Authority, and applications go through brokers and platforms listed on RetailBook’s site. We did not read that site. The offer period the filing gives runs from November 10 to November 18, 2026. Unless their intermediary tells them otherwise, applicants paying in pounds apply for CREST depository interests, one for each share, and not the shares themselves.
• Australia. Anthropic, PBC lodged an Australian prospectus with the regulator, ASIC, on November 10. The offer in Australia is made in that prospectus. It is available to Australian residents on Anthropic’s IPO site and from participating brokers, and a person should consider it in deciding whether to acquire the shares. Anyone who wants to apply needs to complete the application form that is in or accompanies the prospectus. Residents apply through a broker, and the filing names CommSec as lead retail broker. By its table of dates, the offer opens on November 11 and closes at 5:00pm on November 17, Australian Eastern Daylight Time. The same table gives November 19 for the final price and November 20 for the first Nasdaq trading, both in Australian time.
• Canada. A preliminary prospectus is on file in every province and territory. The filing says it “has not yet become final for the purpose of the sale of securities”. It names 17 Canadian underwriters and leaves the number of shares for Canada blank.
• Nine European countries and Switzerland. A prospectus approved by Germany’s regulator, BaFin, covers retail investors in Germany, Denmark, Finland, France, Ireland, the Netherlands, Norway, Spain and Sweden. The same document is filed for Switzerland. By the prospectus, the order period starts on November 11 in Germany and on November 12 in Sweden, and it is expected to end on November 18 at 4:00 PM Central European Time.
• Japan. An amended registration statement went to the Kanto Regional Finance Bureau on November 11. Mizuho Securities is lead manager for the Japanese offering, and Rakuten Securities and SBI Securities are among the firms named as handling applications. Mizuho takes entries to an online lottery from November 11 until 10:00 a.m. on November 18, Japan time, a date the filing marks as expected. The filing says the shares “are not currently expected to be listed on any securities exchange in Japan”.
• Elsewhere. The Australian prospectus adds that “the underwriters may also offer Shares in other jurisdictions as part of the Global Offer”. We did not look for offers outside these 15 countries.

§ 03The share limits the filings give#

• The whole offering. 825,000,000 shares: 801,351,354 new ones and 23,648,646 from existing holders. The underwriters have an option on up to 123,750,000 more.
• The European cap. 80,135,135 shares is 10.0% of the new shares Anthropic is selling, by our arithmetic.
• The maximum price. The European prospectus says the US range of $70.00 to $78.00 “is not expected to exceed the maximum public offering price”. That maximum is $120.00 a share. The range itself has not changed.
• Japan’s range. The Japanese filing gives an aggregate issue price of $3.0 billion to $3.5 billion. By our arithmetic, 38,461,539 shares at $78.00 and 50,000,000 shares at $70.00 give those two totals.

§ 04Who takes orders in Europe#

Section 8.1.5 of the European prospectus names the banks and intermediaries that take retail orders in each country. We list them as the prospectus does. This is a record, not a recommendation of any of them.

• Other banks. The prospectus says an investor using any other bank “should check with their bank or financial intermediary whether orders can be transmitted” to one of the underwriters.
• Earlier cut-offs. It tells investors to ask their bank or intermediary “whether earlier deadlines apply”.

§ 05The warnings in the filings#

• No guarantee. Anthropic’s site says “There is no guarantee that any investor will receive all or any of the shares they apply for in the Anthropic IPO.”
• The UK offer may get nothing. The UK filing says “the Company may decide not to allocate any Shares to the UK Retail Offer”.
• Bound before the price is known. The Australian prospectus tells applicants “you will not know the Final Price at the time you are required to apply for Shares under the Australian Offer”. It says they remain bound to take any shares they are allocated, whether the final price is above, below or within the range.
• Low orders. The European prospectus says investors who place orders below $70.00 “should not expect to receive an allocation”.
• Not yet effective. The site says “The registration statement has not yet become effective.” It adds that the securities may not be sold before it does.

§ 06What we did not read#

• RetailBook’s site. The UK filing points to it for the list of UK brokers and for a disclosure summary. We read neither there.
• The brokers’ own pages. We opened none of them, in any country.
• The full wraps. We read the passages quoted here from the Australian, Canadian, European and Japanese documents, not every page of them.
• Other versions of the site. Requests for country addresses on ipo.anthropic.com returned the US page to us. We do not know what a visitor in another country sees.

§ 07Where CellCog sits#

CellCog runs on Anthropic’s Claude models (Claude Opus 5.5 on most tiers; Claude Fable 5.2 on Agent Max and Creative Max since November 11, 2026), so Anthropic’s health matters to us. CellCog takes no part in the offering and received nothing from Anthropic, a bank or a broker for this page. It reports what the filings say as of November 12, 2026. It is not investment advice.

§ 08What we are watching#

• November 18. The pricing, and whether it lands inside $70.00 to $78.00.
• An amended S-1. Any change to the range, the share count or the dates.
• End-of-offer notices. The European prospectus says Anthropic will publish the end of the offer period on its IPO site.
• Canada. Whether the prospectus there becomes final, and how many shares it carries.

§ 09Sources#

• Anthropic on X, November 12, 2026
• Anthropic’s IPO site, read November 12, 2026
• Anthropic, PBC, free writing prospectus: IPO website, dated November 10, 2026
• Anthropic, PBC, free writing prospectus: UK materials, dated November 10, 2026
• Anthropic, PBC, free writing prospectus: Australian and Canadian prospectuses, dated November 10, 2026
• Anthropic, PBC, free writing prospectus: EEA prospectus, dated November 11, 2026
• Anthropic, PBC, free writing prospectus: Japan amendment, dated November 11, 2026
• Anthropic, PBC, Amendment No. 2 to Form S-1, filed November 10, 2026