Anthropic Files for Mega IPO, Loses Three Claude Code Leaders as AI Growth Story Faces Scrutiny

Anthropic, the maker of the Claude AI model, officially kicked off its initial public offering Monday, filing a 400-page prospectus that reveals explosive growth, staggering infrastructure commitments, and an unusual warning that its own technology could "destabilize the geopolitical order" or pose "catastrophic or existential risks to humanity."

The company is expected to list on Nasdaq under the ticker ANT as soon as the week before Thanksgiving, according to The Wall Street Journal, with a valuation estimated between $1.5 trillion and $2 trillion, as reported by twelfthmagpie.com.

The IPO filing comes as Anthropic faces a sudden leadership void in one of its flagship products. Three key members of the Claude Code team resigned within the past two weeks, according to indiatoday.in. Product lead Cat Wu, engineer Thariq Shihipar, and desktop developer Anthony Morris all announced their departures on social media. Wu, who joined in 2024 after trying an early version of the coding assistant, said Friday was her last day. She described building Claude Code into "an industry-defining product" as "the journey of a lifetime," but did not disclose her next move. When asked if she would take a six-month vacation, she replied, "post agi!" — a tongue-in-cheek reference to artificial general intelligence. Shihipar said he wanted to take a break before moving on to something new. Morris, who created the desktop version, said he built it because "I believe everyone can be a builder."

The departures come at a pivotal moment. Anthropic has grown from roughly 940 employees at the end of 2024 to approximately 5,300 by September 2026, according to indiatoday.in.

**Financials Reveal Breakneck Growth — and Lumpy Profits**

The S-1 filing provides the first audited look at a pure-play frontier AI lab. In the first six months of 2026, revenue hit $16.3 billion, a 1,300% year-on-year increase, according to twelfthmagpie.com. The company reported a $974 million operating profit in the second quarter, with an 85% gross margin, according to dev.to and twelfthmagpie.com. However, the third quarter saw revenue surge 1,127% to $17 billion but swing to an operating loss of $567 million, primarily due to securing $5 billion worth of short-term compute, twelfthmagpie.com reported.

The Wall Street Journal, as cited by eshumarneedi.com, reported that Anthropic's operating loss for a prior period was $693 million, down from $2.1 billion a year earlier, and that the company held $112.4 billion in cash and cash equivalents as of June 30, plus $19.3 billion in short-term investments. The company has raised $141.1 billion since its founding six years ago.

Customer concentration is not an issue. Anthropic reported more than 1,900 customers with $1 million or more of trailing-12-month revenue and roughly 250 customers with $10 million or more, according to twelfthmagpie.com. dev.to reported that the number of customers paying more than $100,000 a year has grown from about 20 in 2023 to nearly 12,000.

**Compute Commitments Top $900 Billion**

The most significant financial risk is Anthropic's massive infrastructure spending. The company has nearly $900 billion in AI infrastructure and computing commitments with companies including Broadcom, Alphabet, Amazon, and SpaceX, according to twelfthmagpie.com. Roughly $70 billion is due by September 2027, and almost $450 billion before the end of 2030. eshumarneedi.com, citing The Wall Street Journal, reported that Anthropic is on the hook for more than $475 billion in compute capacity agreements over the next seven to 10 years, with the bulk noncancelable. Google and Amazon are each set to receive around $110 billion, and SpaceXAI is set to receive $120.5 billion through 2029, though that deal can be canceled with 90 days' notice.

The company acknowledged in its amended filing that it is shifting from a relatively asset-light software business toward a more capital-intensive one, and that cheaper, good-enough models may eventually win over many enterprise workloads, according to twelfthmagpie.com.

**Existential Risk Factor and Market Sentiment**

Anthropic's prospectus includes a risk factor unique in IPO history: sufficiently advanced AI systems "could pose catastrophic or existential risks to humanity," as reported by both eshumarneedi.com and dev.to. The company's public positioning has long been that it is building AI responsibly, but critics argue that warning of existential threats while selling the technology creates a credibility problem.

Jim Cramer told Benzinga that bears may try to derail the IPO, making it a key test for AI valuations amid debates over losses, pricing, and bubble risks.

Anthropic's enterprise focus and high retention rates are seen as strengths. Once businesses embed Claude into workflows, spending tends to increase over time, according to twelfthmagpie.com. The company has also demonstrated improving compute efficiency: in the first quarter of 2026, each dollar of compute brought in $1.40 of revenue; in the second quarter, it brought in over $2, dev.to reported. However, an estimated 70% of Anthropic's compute in the first half of 2026 went to research and development, not customer serving.

The IPO will test whether Wall Street can look past the existential warnings, the massive infrastructure spending, and the sudden loss of key product talent to bet on what could be the largest tech listing in history.