Anthropic has delivered a blunt message to crypto traders: those tokenized shares you bought? They're worthless.
On May 12, the AI company announced that any unapproved third-party purchases of its stock, including those via special purpose vehicles and tokenized securities on crypto platforms, are void and will not be recognized on its official records. In plain terms, if you bought Anthropic exposure through a Solana-based token, the company says you own nothing.
The market reacted immediately. Anthropic PreStocks on Solana crashed 45% within 24 hours, slicing the implied market capitalization from $1.4 trillion to $762 billion-a loss of roughly $638 billion in notional value.
This isn't an isolated incident. OpenAI issued similar warnings, triggering a nearly 40% crash in its own tokenized counterparts. Two of the most valuable private AI companies are now actively telling crypto traders they are not shareholders.
The tokenized pre-IPO market just faced its first major stress test-and it failed. Companies like Anthropic rely on cap table integrity for investor relations and future IPOs. Crypto lawyer John Montague noted back in July 2025 that issuers could pursue lawsuits against platforms and individuals involved in unauthorized tokenization, citing violations of shareholder agreements and securities laws.
For investors, the lesson is clear: tokenizing a treasury bond with issuer cooperation is one thing, but tokenizing private equity without consent is another. When a private company says you don't own their shares, no amount of blockchain technology changes that reality.