Anthropic Cracks Down on Unauthorized Secondary Trading of Its Shares

New updates have been reported about Anthropic.

Anthropic has formally warned investors that a growing number of private and secondary investment platforms claiming to offer access to its shares are not authorized and that any such trades will be void on its books. In an updated statement on its website, the company explicitly named several firms and stressed that any sale or transfer of Anthropic stock, or interests in that stock, conducted through these channels will not be recognized, underscoring tighter control over its cap table amid intense investor demand.

The company stated that both its preferred and common stock are subject to transfer restrictions requiring board approval, and that any transfer not meeting these conditions is invalid, including transactions via SPVs, tokenized securities, forward contracts, or retail-oriented investment products. Anthropic further emphasized that it does not permit SPVs to acquire its stock nor allow participation in its past or future financings through such vehicles, a posture that reflects both efforts to manage regulatory and reputational risk and to maintain direct oversight of who holds economic and governance rights as its valuation and secondary-market interest escalate.