Anthropic Files S-1 for Nasdaq IPO With $16.3 Billion in First-Half Revenue

Quick Facts

• Anthropic filed its S-1 with the SEC on Oct. 26, 2026, to list on Nasdaq under the ticker ANT, with Goldman Sachs and Morgan Stanley leading 22 underwriters.
• The company reported $16.3 billion in revenue for the first half of 2026, up 1,300% from $1.16 billion in the same period a year earlier.
• A five-class stock structure gives co-founders 50.1% of the vote through a single Class F share, leaving public investors with no meaningful say over major decisions.

Anthropic filed its S-1 registration statement with the SEC on Monday, seeking to list its Class A common stock on the Nasdaq Global Select Market under the ticker ANT. The filing follows a confidential draft submitted on June 1, 2026. Share count, price range, and listing date have not yet been set.

The numbers are striking. Revenue for the six months ended June 30, 2026, hit $16.29 billion, compared to $4.59 billion for all of 2025. Second-quarter 2026 revenue alone reached $11.56 billion. Consumption-based revenue accounted for $13.1 billion, or 80% of the first-half total, with subscription revenue making up the remaining $3.2 billion.

The company employs roughly 5,300 people as of September 30. Revenue per employee over the past year exceeded $6.6 million, up from $1.4 million a year earlier.

The Loss Figure That Needs Context

Anthropic posted a net loss of $80.7 billion for the first half of 2026. But $72 billion of that total came from non-cash accounting adjustments tied to convertible notes and financing instruments.

The operating loss was $693 million, down from $2.14 billion in the same period a year prior. The company spent nearly $9 billion on compute and infrastructure in the first half of 2026 alone, exceeding the $7.3 billion spent across all of 2025.

Anthropic held $112.4 billion in cash and cash equivalents as of June 30 and had raised $141.1 billion in total capital by that date.

Half a Trillion in Compute Commitments

The S-1 discloses total compute spending commitments of between $542 billion and $567 billion. The breakdown includes at least $110 billion to AWS, $114.5 billion to Google Cloud, $44.9 billion to Microsoft, up to $120.5 billion to SpaceXAI, and $125.2 billion through Anthropic Direct. Deals begin between 2026 and 2027 and run from one to 20 years.

Anthropic built what the filing calls a proprietary orchestration layer that routes workloads across AWS Trainium, Google TPUs, Nvidia GPUs, and AMD GPUs. The filing states it took the company years of significant investment to build.

Revenue Concentration and Conflict Risks

Forty-eight percent of first-half 2026 revenue came through the cloud marketplaces of Google, Amazon, and Microsoft, up from 11% in 2023. The three companies are simultaneously shareholders, compute suppliers, distribution partners, and competitors. Anthropic acknowledged in the SEC filing that these partners can view its pricing and commercial terms and may choose to prioritize their own AI models.

About 20% of first-half revenue came from just two customers, and Anthropic expects a limited client base to continue generating a large share of total revenue going forward.

Amazon has invested $13 billion in Anthropic since 2023, with the option to put in $20 billion more, and has agreed to provide up to $15 billion in additional financing available in $5 billion tranches. Google holds an option to purchase up to $10 billion in Class N common stock in a private placement concurrent with the IPO.

A Governance Structure Built for Control

The IPO creates five classes of common stock, only one of which is available to the public. A single Class F share, held by an LLC owned by Anthropic's seven co-founders, carries 50.1% of voting power and no economic rights. Public Class A shareholders split the remaining 49.9% of votes among themselves.

A separate Class T share, held by the Long-Term Benefit Trust, has no economic rights or expiration date and gives the trust the power to elect a majority of directors. The filing describes trustees as financially disinterested specialists in AI safety, national security, public policy, and social enterprise.

The S-1 warns that Class A investors generally cannot determine the outcome of shareholder votes or director elections, including decisions about a potential company sale. Each co-founder has also pledged to give away 80% of their Anthropic equity.

Anthropic is incorporated as a public benefit corporation under Delaware law, a structure the filing ties directly to its AI safety mission. The registration statement is not yet effective, meaning no shares can be sold until the SEC declares it so.