Anthropic warns investors against secondary platforms offering access to its shares

Anthropic said several secondary-market and investment platforms are not authorized to trade its shares.

The company said only board-approved transfers are valid, and SPVs or other third-party offerings are prohibited.

It named firms including Forge Global, Hiive, Open Doors Partners, Unicorns Exchange, and others in its warning.

The move underscores strong demand for private AI equity and the risks of unauthorized or fraudulent access channels.