Anthropic has issued a firm warning that any sale or transfer of its pre-IPO stock not approved by its Board of Directors will be considered void and unrecognized. This crackdown targets secondary markets—many of which operate through complex financial structures like special purpose vehicles (SPVs) or tokenized securities—that have sprung up to offer investors access to AI companies before their public listings.

Secondary platforms such as Hiive and Forge have seen booming activity as excitement around AI companies like Anthropic and OpenAI fuels demand for early-stage equity exposure. However, Anthropic’s latest guidelines label such unauthorized trades as fraudulent and risk being worthless due to strict transfer restrictions, a stance echoed recently by OpenAI. This approach has cast doubt over the entire ecosystem of tokenized pre-IPO markets that aim to democratize access for investors around the world.

Market insiders warn that the implications could be severe. Analysts compare the potential fallout to major financial crashes like the FTX collapse, highlighting how invalidating layered SPVs and other synthetic ownership arrangements may expose widespread fraud and lead to a liquidity crunch. The SpaceX IPO is also noted as a forthcoming test that could reveal the extent of these questionable practices.

Legal experts suggest that Anthropic’s position might prompt litigation to clarify the legal boundaries of equity transfer restrictions in pre-IPO settings. Meanwhile, investors who sought exposure through platforms relying on tokenized shares or forward contracts face uncertainty and possible losses.