Anthropic warns investors against secondary platforms offering access to its shares
Anthropic just blacklisted 8 secondary share platforms. Here's why that matters for your cap table.

Why it matters
As private AI companies approach unicorn/mega-round valuations, unauthorized secondary markets are creating litigation risk and valuation chaos. Anthropic's public warning signals growing tension between investor liquidity demands and founder control over cap table integrity.
The key facts
8 to know8 unauthorized secondary platforms named: Open Doors Partners, Unicorns Exchange, Pachamama Capital, Lionheart Ventures, Hiive, Forge Global, Sydecar, Upmarket
Warning issued by Anthropic to investors about unauthorized share trading
Indicates secondary market pressure on high-valuation private AI companies
Suggests potential cap table governance and valuation verification issues in unregulated secondary trading
Anthropic flagged 8 unauthorized secondary platforms: Open Doors Partners, Unicorns Exchange, Pachamama Capital, Lionheart Ventures, Hiive, Forge Global, Sydecar, Upmarket
Warning issued to investors against using non-authorized channels for share trading
Suggests active secondary market demand for Anthropic shares
Indicates company is managing cap table and shareholder base strategically pre-IPO or pre-mega-round
Go to the source
TechCrunch AItechcrunch.com
Publisher excerpt: The company named Open Doors Partners, Unicorns Exchange, Pachamama Capital, Lionheart Ventures, Hiive, Forge Global, Sydecar and Upmarket as companies that are not authorized to provide access to buy or sell its shares.