Anthropic IPO: Capital Structure, Financial Risks & Valuation

Entropic's highly anticipated S1 filing, also known as Perspectus, has been released, revealing significant details about the AI company's financial state, operational structure, and inherent risks. The document highlights over 1000% revenue growth, substantial operational improvements, and even warnings about existential risks to humanity.

Company Overview and IPO Details

Anthropic, the AI company behind the popular Claude model, is preparing to go public on NASDAQ under the ticker NT within the next month. While rumors suggest a valuation between $1.5 and $2 trillion and a target of $100 billion in its initial sale, the Perspectus itself does not provide a definitive valuation. This IPO is notable as it marks the first pure-play AI company to go public and is expected to be one of the largest IPOs to date.

The filing begins with a letter from the founders, stating, "We believe AI is one of the most consequential technologies in human history. If managed well, it could rapidly accelerate scientific innovation, greatly increase economic growth rates, bring cures for major diseases within reach, and solve problems that have resisted generations of human effort." The letter also outlines promising AI applications and top risks, including bioweapons development and government repression. Investors are encouraged to view their purchase as participation in a greater mission rather than a purely transactional one.

Unique Capital Structure and Governance

Anthropic is structured as a Public Benefit Corporation (PBC) under Delaware law. This means it is legally obligated to balance shareholder returns with a public benefit purpose: "the responsible development and maintenance of advanced AI for the long-term benefit of humanity."

To uphold this commitment, Anthropic has established a Long-Term Benefit Trust, composed of independent AI experts. This trust holds special Class T shares, enabling it to elect Class T directors who will form a majority of the board, overseeing the company's management. This creates a unique dynamic where the trust, not financially invested in the company, might have objectives that conflict with shareholder interests.

Further complicating the capital structure:

• Class F Share: A single Class F share accounts for 50.1% of Anthropic's voting power, controlled collectively by the company's founders through a new entity called Founder LLC. This ensures the founders maintain majority control over shareholder votes.
• Class E Shares: These shares will be issued to employees, offering limited voting opportunities.
• Class A Shares: These are the shares available to the public in the IPO and will have significantly less power due to the other share classes.
• Class N Shares: These shares have economic value but limited voting power and are primarily issued to strategic business partners and the company's public benefit fund (philanthropy arm). The public benefit fund has already received 5% of outstanding shares and is slated to receive an additional 2% each time Class A shares appreciate by 50%.

None of the Class T, F, or E shares hold economic value, effectively concentrating power away from Class A shareholders. Additionally, the company has $18.6 billion in convertible notes and $157.5 billion in convertible preferred shares, which will convert into company shares immediately before the IPO, leading to significant dilution.

Operations and Revenue Streams

Anthropic's operations are detailed in the Perspectus, revealing key revenue drivers:

• Revenue Mix: Approximately 80% of revenues come from consumption-based services, with the remaining 20% from subscriptions.
• Enterprise Growth: The company has seen rapid growth in enterprise customers, particularly those spending over $100,000.
• Cloud Provider Reliance: Anthropic is increasingly reliant on selling its services through cloud providers like Amazon, Google, and Microsoft. These providers sell Anthropic's offerings to their customers and split the fees. In 2023, 11% of revenues came from these providers, a figure that has since risen to 48%. This creates an interesting dynamic as these companies are simultaneously suppliers, investors, and competitors.
• Usage Policy Violations: An estimated 5-7% of revenues are attributed to customers violating Anthropic's usage policy. The specific violations are not detailed, but this opens the company to potential liability for damages caused by inappropriate model use.

The document also includes case studies of large businesses using Anthropic's AI to improve operations.

Financial Performance

Balance Sheet

The balance sheet is largely composed of cash and short-term investments, making up 91% of assets. However, the liability side is substantial, with $108.6 billion in convertible notes and $157.5 billion in redeemable convertible preferred stock. If these are considered debt, the company's debt-to-asset ratio is 1.8 times, technically rendering it insolvent, as evidenced by a massive shareholder deficit of $127.6 billion.

It's important to note that an AI company's balance sheet may not fully reflect its value, as much of it comes from intangible assets like research expenses for developing models, which are not capitalized. The convertible notes and preferred shares, while accruing interest, are set to convert into shares rather than being paid back in cash, shifting their value to shareholder equity.

Income Statement (Adjusted vs. GAAP)

Anthropic presents both adjusted and GAAP-compliant financial figures.

Adjusted Figures: According to adjusted figures, Anthropic boasts a 10% operating margin and a 16.4% net income margin, thanks to interest earned on its cash balance. These figures are achieved by adding back non-cash expenses:

• Adjusted Operating Profit: Adds back $2.3 billion in stock-based compensation and charitable contributions.
• Adjusted Net Income: Adds back $81 billion in fair value changes.

While common for companies to remove non-cash expenses, issuing more shares to cover these expenses still dilutes investors.

GAAP-Compliant Figures: The GAAP-compliant income statement, which includes these expenses, paints a different picture:

• Revenue Growth: Exceptional growth is evident, from $386 million in 2024 to $4.66 billion in 2025, and $16.3 billion in the first half of 2026 (14 times larger than the same period in 2025).
• Operational Profitability: The operating profit margin was -4.3% in the first half of 2026 but turned positive in the second quarter. Revenues are rapidly outpacing growing costs, with compute and infrastructure expenses being the largest operational cost.
• Fair Value Changes: A substantial line item, 4.4 times revenue, represents fair value changes related to convertible notes and preferred shares. As the company's value increases, the cost of future conversion of these securities also increases, leading to significant share dilution upon conversion before the IPO.

Anthropic expects operating margins to fluctuate due to upfront expenses for infrastructure buildout and a shift towards more expensive short-term compute agreements. The company will likely continue raising capital post-IPO to meet future obligations.

Future Obligations and Risks

Anthropic faces substantial future obligations, many of which are not reflected on its balance sheet:

• Purchase Commitments: As of June, $265.6 billion.
• Infrastructure Service Agreements: Several massive deals.
• Upcoming Leases: Payments totaling $371.6 billion over their life, starting in the next two years.
• Finance Lease: Payments of $161.2 billion (excluding interest).

These largely non-cancellable obligations are in addition to hundreds of billions of dollars in potential optional spending. With revenues under $20 billion over the past 12 months, these figures are staggering.

Key Risks Highlighted:

• Capital Dependence: Given its current low profitability, Anthropic is entirely dependent on capital raises to survive. For example, $125.2 billion in upcoming lease payments for Broadcom over the next five years (excluding interest) is six times the company's current revenue and only a fraction of total obligations. A slowdown in revenue growth or a drying up of capital could lead to a liquidity crisis.
• Catastrophic/Existential Risks: The document warns of models potentially exhibiting deceptive or self-preserving behaviors, and the risk of advanced AI being manipulated by malicious actors. An example cited is a Chinese state-sponsored group using Claude code to infiltrate 30 global targets, representing the first documented large-scale cyberattack without substantial human intervention.
• Irreparable Blunders: AI models could make critical errors for customers (e.g., deleting files), opening the company to liability.
• Lawsuits: Anthropic faces numerous copyright infringement and other cases regarding model training and usage, with no dollar amount provided for potential liability.
• Investor Dilution: The company's reliance on issuing shares to raise capital poses a risk to investors. Major investors like Google, Microsoft, and Amazon, with their own AI ambitions, may look to sell their Anthropic shares once they unlock, potentially impacting the stock price. While a schedule for unlocking shares is anticipated, details are not yet disclosed.

Valuation and Outlook

If Anthropic's IPO valuation reaches the rumored $2 trillion, it would imply a price-to-sales ratio of around 100 times. While rapid growth could justify this, the company itself admits that current revenue growth likely represents early adoption and will slow down substantially in the future.

High return opportunities come with significant risk. While Anthropic promises to revolutionize human work, it also faces potential financial ruin or, as the document suggests, could contribute to human extinction.

Personal Takeaways

The income statement was surprisingly better than expected, while the balance sheet was considerably worse. Despite recent capital raises, the company has historically burned through a significant amount of cash. Its off-balance sheet obligations are on par with much larger tech companies, despite Anthropic having a fraction of their current profits or revenue. Whether Anthropic can quickly catch up to companies like Google or Meta remains to be seen, but its journey is expected to be a "rollercoaster."