Anthropic issues warning about secondary market stock trading.

CoinFeed reported on May 13 that, according to AXIOS, Anthropic is cracking down on unauthorized secondary market stock trading, at least verbally. Anthropic previously stated that any sale or transfer of Anthropic stock or any Anthropic equity interest without board approval is invalid and will not be recognized in the company's books and records. It subsequently named eight secondary trading platforms, including well-known platforms such as Hiive and Forge.