Anthropic has issued a formal warning to investors about unauthorized secondary trading platforms claiming to offer access to company shares. The AI startup explicitly stated that any stock sales or transfers through these unofficial channels are void and will not be recorded in company records.
The warning appears on Anthropic's official support page as the company attempts to prevent fraudulent stock transactions. Secondary markets like Forge, Carta, and similar platforms sometimes facilitate share trading for private companies before they go public, but Anthropic's statement makes clear it does not recognize transactions on unapproved venues.
This move reflects growing concerns around private company equity markets. As AI startups attract massive investor interest and command billion-dollar valuations, secondary platforms have proliferated. Bad actors exploit this demand by offering fake or misrepresented shares to unsuspecting investors seeking early exposure to hot companies.
Anthropic, valued at $15 billion following its Series C funding round, has become a target for such schemes. The company competes directly with OpenAI and faces intense investor appetite for stakes in leading AI labs. Scammers leverage this demand by creating convincing platforms that mimic legitimate secondary markets.
The company's explicit statement that unauthorized transfers "will not be recognized on our books and records" carries real legal weight. It means investors who buy shares through unapproved channels risk losing their investment entirely if the company eventually goes public or is acquired. Transfer agents and official records would not acknowledge their ownership.
Anthropic has not specified which secondary platforms it considers unauthorized, but the warning serves as a blanket caution. Investors seeking legitimate exposure to pre-IPO Anthropic shares should only transact through channels explicitly endorsed by the company or work with established, regulated secondary market operators.
The warning underscores a broader problem in private equity markets. Regulatory gaps allow fraudsters to operate freely while legitimate investors struggle to distinguish safe platforms from scams.