The S-1 filing shows the US government sold 4,453,900 seized Series B Anthropic shares for $627M in October 2025, or $140.9676 per share, with proceeds meant to reimburse FTX creditors, per WuBlockchain.

The S-1 filing shows the US government sold 4,453,900 seized Series B Anthropic shares for $627M in October 2025, or $140.9676 per share, with proceeds meant to reimburse FTX creditors, per WuBlockchain.

Anthropic repurchased the block from the government and resold it at cost to nine undisclosed buyers, per the same summary. Other posts trace the shares to former FTX executives Caroline Ellison and Nishad Singh via Alameda's 2022 investment.

The $3.94B figure is an estimate of what that stake would be worth at Anthropic's projected IPO valuation ahead of its planned Nasdaq listing under ticker ANT, per Cointelegraph, more than six times the resale price.

That is a paper estimate tied to pre-IPO valuation talk, not a realized sale at $3.94B. The registration filed Oct 26, 2026 has not yet become effective, so shares cannot be sold yet.

Anthropic's only direct statement so far is that it filed the S-1, per its post.