# Bill Ackman questions Anthropic’s S-1 risk disclosure on AI extinction chance

Digest AI · Policy & Regulation · published 2026-09-25T04:30:00Z

Canonical: https://digestai.news/story/bill-ackman-questions-anthropics-s-1-risk-disclosure-on-ai-extinction

## Summary

Bill Ackman, CEO of Pershing Square Capital Management, criticized Anthropic’s draft S-1 filing on X, questioning why a 10% chance of AI causing human extinction—cited by the company’s own researchers—would not be listed as a top risk factor. His post followed Anthropic CEO Dario Amodei’s essay urging the AI industry to slow advancements due to catastrophic risks, backed by OpenAI’s Sam Altman and Elon Musk.

Anthropic’s internal warnings escalated after researcher Jacob Coxon resigned, calling AI a life-threatening gamble. Fellow researcher Evan Hubinger publicly stated AI has over a 10% chance of wiping out humanity within a decade, though no external validation exists. The company’s confidential SEC filing hints at a potential IPO valuing it at over $2 trillion, though no timeline or final terms have been disclosed.

## Key points

- Bill Ackman mocked Anthropic’s S-1 for not listing AI extinction risk as a top factor, despite internal warnings
- Anthropic researchers Jacob Coxon and Evan Hubinger claim over 10% chance of AI causing human extinction
- Company filed draft S-1 for potential $2T+ IPO, but no risk disclosure or timeline confirmed

## Why it matters

Public scrutiny over AI safety risks grows as Anthropic prepares for an IPO, raising questions about corporate transparency and regulatory oversight.

## Sources

1. [Bill Ackman Takes a Jab at Anthropic's S-1 Filing, Asks if '10% Chance' of AI Killing Humans Would Be Listed as Top Risk](https://finance.yahoo.com/technology/ai/articles/bill-ackman-takes-jab-anthropics-113010660.html) (finance.yahoo.com, 2026-09-25)

Part of the developing story: [The Rising Debate on AI Extinction Risks](https://digestai.news/thread/ai-leaders-doomsday-predictions-a-form-of-hype-cea8be) (3 stories)

## Cite

Digest AI, "Bill Ackman questions Anthropic’s S-1 risk disclosure on AI extinction chance", 25 September 2026, https://digestai.news/story/bill-ackman-questions-anthropics-s-1-risk-disclosure-on-ai-extinction

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