Business & Funding

Anthropic warns investors against secondary platforms offering access to its shares

· May 12, 2026
Anthropic warns investors against secondary platforms offering access to its shares

What happened

Anthropic issued a warning to investors against using certain secondary platforms to buy or sell its shares. The company named Open Doors Partners, Unicorns Exchange, Pachamama Capital, Lionheart Ventures, Hiive, Forge Global, Sydecar, and Upmarket as unauthorized firms. These platforms are not approved by Anthropic to provide access for trading its equity, which signals potential risk for anyone using them.

Why it matters

Secondary markets can offer liquidity options for shareholders in private companies, but they carry risks if the platforms are unregulated or unauthorized. Anthropic’s warning puts a spotlight on potential scams, invalid trades, or misrepresentations associated with these secondary exchanges. Investors using these unauthorized channels expose themselves to legal and financial uncertainty. This caution also amounts to a tightening of Anthropic’s control over its shareholder base and how private shares circulate.

What to watch next

Monitor if Anthropic takes further steps to enforce its stance, such as legal actions or developing authorized secondary options. Watch whether investors push back or seek guidance on legitimate channels for share transfers. Secondary markets in private AI companies are evolving quickly, so the regulatory and market response to Anthropic’s warning could reshape liquidity access for private AI firm investors.

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