Two Titans

Anthropic and OpenAI have done what many had long expected but what participants in the shadow market refused to believe until the very last moment. Both companies updated their internal policies almost in sync, putting a firm stop to secondary trading of their shares. The wording published on their respective pages sounds nearly identical, as if the lawyers of two fierce rivals had been copying off each other. But that's not really the point. The point is that the two hottest AI startups on the planet have just cut off the oxygen supply to an entire industry that grew up around investors desperate to grab a piece of their businesses before either goes public.

At Anthropic, the language is brutally clear: any sale or transfer of securities without board approval is declared void. A buyer who risks entering such a transaction will not be recognized as a shareholder and will receive absolutely no rights whatsoever. OpenAI mirrors the exact same structure: without the company's written consent, any transfer of shares has neither legal nor economic value. In plain terms: if you bought without asking, you might as well have thrown your money to the wind.

What's most interesting is that neither company limited itself to a generic prohibition. They named specific avenues that are now considered illegitimate. The list includes direct sales, special purpose vehicles, tokenized equity interests, and forward contracts. This is not a random collection of words. These are precisely the tools that the market has spent the last several years using to carve out detours toward shares in private AI giants.

The notorious SPVs — special purpose vehicles — deserve particular attention. The scheme is simple and elegant in its audacity. A shell company is created with the sole...