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Not an offer of securities for sale. Not for forwarding or distribution to any person outside the United Kingdom. Capital at risk. See important information below.
The value of investments can fall as well as rise and you may get back less than you invest. Initial public offerings carry a high degree of risk. When you apply for Shares you will not know the exact purchase price or how many Shares you may receive, if any.
The Shares will not be listed on a UK exchange and there are differences between the regulatory framework in the United States compared to the regulatory framework that would apply if the Shares were listed on a UK exchange. In addition, the sterling price of overseas investments, and any income from them, is subject to exchange rate fluctuations.
The UK Retail Offer is open only to persons resident and physically located in the United Kingdom. This communication must not be forwarded or otherwise distributed to any person outside the United Kingdom.
Interactive Investor Services Limited does not advise on the suitability of new issues and nothing in this communication is a personal recommendation. If you are in any doubt you should contact an independent financial adviser. Tax treatment depends on your individual circumstances and may change.
Anthropic is an artificial intelligence research lab whose mission is the responsible development and maintenance of advanced AI for the long-term benefit of humanity. Its frontier AI, Claude, is delivered to customers through its models, platform, and applications.
Anthropic has filed a registration statement with the U.S. Securities and Exchange Commission for a proposed initial public offering of its shares of Class A common stock, which it intends to list on the Nasdaq Global Select Market under the symbol “ANT”.

Now that Anthropic has publicly filed with the SEC, here’s what is expected to happen next:
Should the U.S. prospectus and the Disclosure Summary become available, they would be published on our Anthropic IPO offer page and we would email everyone who has registered.
Should the UK Retail Offer launch, you would be able to apply from your ii account. Applications can be amended or cancelled until the offer closes, and the offer may close early.
Should the IPO complete, shares would be allocated and delivered to your account. You may receive fewer shares than you applied for, or none.
Every step is conditional on the IPO proceeding. All steps are expected or anticipated and are subject to change. No date is fixed, and the IPO may not go ahead.



We’ve made it easy for you to apply for IPOs and new issues. You can either do it online or via our mobile app.
The ii Trading Account, ISA, Junior ISA or Personal Pension (SIPP) are eligible for the Anthropic UK Retail Offer. Pension savings usually cannot be withdrawn until age 55, rising to 57 in 2028.
Applications are paid for from cash held in the account. Nothing is taken until an application is accepted, after the offer closes.
For an international IPO, you'll need to complete the exchange agreements before you make your first trade as this will allow you see live prices on international shares. We’ll ask you to complete the agreements the first time you search for an international share.
Before you can buy US-listed shares with ii, you need to complete a W-8BEN form. In most cases, you can do this online via your ii account. You don't need to do this if you are only investing in a SIPP.
Please note, entity and corporate accounts are not eligible for this UK Retail Offer. Tax treatment depends on your individual circumstances and may change.
Anthropic’s registration statement, including the preliminary U.S. prospectus when available, can be obtained free of charge from EDGAR, the SEC's filing system, at www.sec.gov.
Should the UK Retail Offer open, the U.S. prospectus and the Disclosure Summary prepared for UK investors would be published on the IPO’s offer page. Any decision to apply should be made only on the basis of those documents.
The UK Retail Offer, if it proceeds, would be facilitated through the public offer platform operated by Retail Book Limited, which is authorised and regulated by the FCA. Interactive Investor is one of the intermediaries.
Important information
This communication is only directed at, and for viewing by, persons resident and physically located in the United Kingdom.
This communication relates to the proposed offer of shares of class A common stock in the capital of Anthropic, PBC (the "Company") and, where the context requires, CREST depository interests constituted under English law and representing rights to such shares of class A common stock on a one-for-one basis (the "Shares") to persons resident and physically located in the United Kingdom (the "UK Retail Offer"), which would be facilitated through the public offer platform operated by Retail Book Limited ("RetailBook"). RetailBook is authorised and regulated by the Financial Conduct Authority (the "FCA") (FRN 994238). The UK Retail Offer would form part of an offering of Shares registered with the U.S. Securities and Exchange Commission (the "SEC") under the U.S. Securities Act of 1933, as amended.
This communication does not constitute an offer or invitation to sell or issue, or any solicitation of any offer to purchase or subscribe for, Shares in the United States or in any other jurisdiction. The information contained in this communication must not be distributed, forwarded, reproduced, copied or published in any jurisdiction where to do so would breach applicable laws or regulations or require registration or any other measures. Do not share the information contained in this communication with anyone outside the United Kingdom.
The Company has filed a registration statement on Form S-1 (the "Registration Statement") with the SEC relating to the offering of the Shares. The Registration Statement has not yet become effective. The Shares may not be sold, nor may offers to buy be accepted, prior to the time the Registration Statement becomes effective. Copies of the U.S. prospectus (including a preliminary U.S. prospectus) (the "U.S. Prospectus"), when available, may be obtained for free by visiting EDGAR on the SEC's website at www.sec.gov.
Neither the SEC nor any state securities commission has approved or disapproved of these Shares or passed on the adequacy or accuracy of the U.S. Prospectus. Any representation to the contrary is a criminal offence.
Whilst the U.S. Prospectus is referred to as a 'prospectus', none of the U.S. Prospectus, the disclosure summary relating to the UK Retail Offer (the "Disclosure Summary") nor any other document produced in connection with the UK Retail Offer or the offering of Shares in any other jurisdiction is a prospectus for the purposes of The Public Offers and Admissions to Trading Regulations 2024 (the "POATRs") and/or the Prospectus Rules: Admission to Trading on a Regulated Market sourcebook forming part of the FCA's Handbook of Rules and Guidance (the "UK PRM") and none of these documents has been reviewed or approved by the FCA. The U.S. Prospectus and the Disclosure Summary may not contain the same information as would be included in a prospectus for the purposes of the POATRs and/or the UK PRM.
The Shares will not be admitted to listing on the Official List of the FCA or admitted to trading on a regulated market or primary MTF (as such terms are defined in the POATRs) in the United Kingdom.
The UK Retail Offer, if made, will be made by means of a regulated platform under paragraph 13 of Part 1 of Schedule 1 to the POATRs and as a "qualifying public offer" as defined in, and meeting the requirements of, article 25DB of the Financial Services and Markets Act 2000 (Regulated Activities) Order 2001. No prospectus is required to be, or has been, prepared or published in the United Kingdom in connection with the UK Retail Offer.
This communication is prepared by and is the sole responsibility of Interactive Investor Services Limited, a firm authorised and regulated by the FCA.