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# Claude's maker chases a record float despite billions in losses
- URL: https://www.bushletter.com/anthropic-files-for-ipo-targeting-2-trillion-amid-8bn-loss/
- Published: 2026-10-06T09:00:00.000Z
- Updated: 2026-10-06T08:59:59.000Z
- Description: The Pentagon has cancelled the company's contracts and barred Claude from defence-related contractor work, adding another risk for prospective investors.
- Author: Editor
- Tags: AI, Technology, US, Anthropic

![Zara Kincaid](https://res.cloudinary.com/dz77sb7j1/image/upload/v1774262611/bushletter/authors/zara-kincaid.png)

By **Zara Kincaid** · 2026-10-06

TLDR

Anthropic's draft IPO prospectus reveals US$4.6 billion in 2025 revenue against an US$8 billion operating loss, with the AI safety company targeting a US$2 trillion valuation. The filing also discloses that the Pentagon designated Anthropic a supply-chain risk in February 2026 and cancelled its contracts.

## The filing

Anthropic PBC confidentially submitted a draft registration statement on Form S-1 to the U.S. Securities and Exchange Commission on 1 June 2026, flagging its intention to pursue what analysts say could become the largest initial public offering in history.[\[1\]](https://www.anthropic.com/news/confidential-draft-s1-sec?ref=bushletter.com) The company has not yet set a final price or confirmed a listing date, and the document remains subject to SEC review.

Anthropic recorded revenue of nearly US$4.6 billion in 2025, a twelvefold increase from 2024.[\[2\]](https://www.investing.com/news/stock-market-news/exclusiveanthropics-ipo-prospectus-shows-sweeping-ai-vision-surging-costs-4921382?ref=bushletter.com) A twelvefold revenue jump in a single year is what summary pages are built to show off. What sits two lines below it is harder to absorb.

## The numbers behind the numbers

The prospectus discloses an operating loss of more than US$8 billion in 2025, excluding writedowns tied to previous fundraising rounds.[\[2\]](https://www.investing.com/news/stock-market-news/exclusiveanthropics-ipo-prospectus-shows-sweeping-ai-vision-surging-costs-4921382?ref=bushletter.com) Compute, talent and infrastructure costs at the frontier of large language model development produce that kind of gap between revenue and profitability, and the absolute size of the loss is a number investors will need to model carefully against any US$2 trillion valuation target.

Analysts have drawn comparisons to SpaceX's US$1.77 trillion market debut, noting that Anthropic's float could set fresh valuation benchmarks for companies offering pure-play AI exposure.[\[2\]](https://www.investing.com/news/stock-market-news/exclusiveanthropics-ipo-prospectus-shows-sweeping-ai-vision-surging-costs-4921382?ref=bushletter.com) Whether the market will absorb a loss-making company at that multiple is the operative question.

## One third of the prospectus is a warning

The draft dedicates roughly 80 of its 261 pages to risk factors, including warnings that Anthropic's own AI models could pose catastrophic or existential risks to humanity.[\[3\]](https://community.stonkbuilder.com/prestocks/anthropic-s1-leak?ref=bushletter.com) Most S-1 risk sections cover market competition, regulatory exposure and key-person dependencies; spending a third of the document on existential danger has no real precedent in technology listings.

Anthropic was established in 2021 by former OpenAI researchers specifically to build AI more safely, using what it calls a constitutional AI approach to improve model behaviour. Flagging civilisation-scale risk in the prospectus is consistent with that founding posture, though a pension fund allocator will read those pages differently to an AI safety researcher.

## The Pentagon problem

The more immediate risk sits inside a U.S. Court of Appeals filing dated 8 April 2026\. On 3 March 2026, then-Secretary of War Pete Hegseth designated Anthropic a supply-chain risk under 41 U.S.C. § 4713.[\[4\]](https://media.cadc.uscourts.gov/orders/docs/2026/04/26-1049LDSN3.pdf?ref=bushletter.com) The Department of Defense subsequently cancelled its contracts with Anthropic, began removing Claude from its systems, and barred contractors from using Anthropic products for any work connected to the department.

The designation appears to stem from Anthropic's refusal to remove usage constraints from its models for defence applications. CEO Dario Amodei said the vast majority of Anthropic's customers would be unaffected, since the designation plainly applies only to the use of Claude by customers as a direct part of contracts with the Department of War, not all use of Claude by customers who have such contracts.[\[4\]](https://media.cadc.uscourts.gov/orders/docs/2026/04/26-1049LDSN3.pdf?ref=bushletter.com) Amodei described the underlying characterisation of Anthropic's conduct as "completely false and just straight up lies."[\[4\]](https://media.cadc.uscourts.gov/orders/docs/2026/04/26-1049LDSN3.pdf?ref=bushletter.com)

Regardless of how the legal dispute resolves, the designation is now a material item in the prospectus and a variable investors must price before the float. The SEC review process and final pricing timeline had not been publicly confirmed as of the date of this article.

KEY TAKEAWAYS

01Anthropic's 2025 revenue of US$4.6 billion marked a twelvefold increase on the prior year.

02An US$8 billion operating loss in 2025 shows the steep cost of frontier AI development.

03Roughly 80 of 261 prospectus pages warn Anthropic's models could pose existential risks.

04The Pentagon cancelled Anthropic contracts and barred use of Claude after a March 2026 designation.

05Analysts say the float could set valuation benchmarks for pure-play AI investment.

This article contains analysis and commentary on market conditions. It does not constitute financial, investment, or professional advice. Past performance is not indicative of future results. Always consult a qualified adviser before making financial decisions.

SOURCES & CITATIONS

1. [Anthropic Confidential Draft S-1 SEC Filing Announcement](https://www.anthropic.com/news/confidential-draft-s1-sec?ref=bushletter.com)
2. [Anthropic IPO Prospectus: Sweeping AI Vision, Surging Costs](https://www.investing.com/news/stock-market-news/exclusiveanthropics-ipo-prospectus-shows-sweeping-ai-vision-surging-costs-4921382?ref=bushletter.com)
3. [Anthropic S-1 Leak Analysis](https://community.stonkbuilder.com/prestocks/anthropic-s1-leak?ref=bushletter.com)
4. [U.S. Court of Appeals DC Circuit Order, Case 26-1049](https://media.cadc.uscourts.gov/orders/docs/2026/04/26-1049LDSN3.pdf?ref=bushletter.com)

FREQUENTLY ASKED QUESTIONS

What valuation is Anthropic targeting in its IPO?

Anthropic is targeting a valuation of approximately US$2 trillion, which analysts say could make it the largest IPO in history if achieved.

How much revenue did Anthropic earn in 2025?

The draft prospectus shows Anthropic recorded nearly US$4.6 billion in revenue in 2025, a twelvefold increase on the prior year, alongside an operating loss of more than US$8 billion.

Why did the Pentagon cancel its Anthropic contracts?

The Department of Defense designated Anthropic a supply-chain risk on 3 March 2026 under U.S. federal procurement law, reportedly because Anthropic refused to remove usage constraints from its Claude models for defence work. The department then cancelled contracts and barred contractors from using Claude for department-related work.

What does the existential risk language in the prospectus mean?

Roughly 80 of the draft's 261 pages address risk factors, including warnings that Anthropic's AI models could pose catastrophic or existential risks to humanity. This level of disclosure is unusual for a technology IPO and reflects Anthropic's positioning as an AI safety company.

![Zara Kincaid](https://res.cloudinary.com/dz77sb7j1/image/upload/v1774262611/bushletter/authors/zara-kincaid.png)

[Zara Kincaid](https://bushletter.com/author/zara-kincaid/?ref=bushletter.com)

Zara Kincaid writes about artificial intelligence and search. Her focus is what happens to businesses when the front page of the internet stops being a list of links and starts being an answer.