Anthropic Offering Filing: Goldman and Morgan Stanley Lead IPO as Net Revenue Retention Hits 900%
Anthropic's IPO filing puts four elements into sharp focus: the banks managing its debut, the rapid change in its revenue and losses, the unusually high retention economics of its enterprise base, and a governance arrangement that concentrates voting influence with its founders.
Lead Underwriters Named in the Filing
According to the prospectus, Goldman Sachs Group and Morgan Stanley are serving as the lead underwriters for Anthropic's IPO.
Revenue Expansion and Wider Net Losses
| Financial metric | First half of 2026 | Full year 2025 |
|---|---|---|
| Revenue | $16.3 billion, up 1,304% from $1.16 billion in the prior-year period | $4.59 billion, up 1,089% year over year |
| Net loss | $80.7 billion, a 526% increase from $12.9 billion in the prior-year period | About $41.9 billion, a 405% increase from $8.3 billion in 2024 |
The filing says Anthropic has long focused primarily on the enterprise market. Its net revenue retention rate reached 900%, a metric used to measure the company's ability to keep existing customers and increase their spending over time.
Customer Concentration Remains Low
For the nine months ended September 30, 2026, Anthropic said no single customer contributed more than 10% of total revenue. In the third quarter of this year, customers outside the top five customers generated 79% of revenue.
Founder-Led Ownership and Voting Control
In the list of largest individual shareholders, the founders occupy positions usually held by large investment institutions.
CEO Dario Amodei owns or controls 245 million Class A shares. His sister, Daniela Amodei, along with Tom Brown, Jack Clark, Jared Kaplan, Sam McCandlish and Christopher Olah, each holds more than 200 million Class A shares.
Under the filing, Dario Amodei, Daniela Amodei and the other five co-founders will be the "all members" of Founder LLC. That entity will hold 50.1% of the voting power of the issued shares.
Control Structure and Shareholder Effects
Anthropic said it has adopted a novel capital and corporate governance structure and described it as having "no direct precedent among public companies."
"Our governance structure may reduce the likelihood that the company receives unsolicited merger proposals, actively initiated tender offers, or removal of directors through a proxy contest. As a result, our governance structure may make it more difficult to replace directors and management, and may also cause shareholders to lose the opportunity to sell their stock at a premium above the current market price."
Marketing and Listing Window
Under the current schedule, Anthropic may formally launch its IPO roadshow in the week beginning November 9, and may begin trading on public markets as early as the week before Thanksgiving.