I believe this could answer your concern on what would happen if the company is sold.
Their website also explains how the equity will be split and what the schedule is. And this post provides explanation on the legalities, which are a concern, because it's a decentralized exchange. Basically it's a test of the concept of the decentralized exchange, it's all uncharted waters. Caveat emptor.
I guess those explanations that they are not providing equity due to legalities make sense, but I would prefer that he write that into the prospectus as I think he can back out of those statements.
Also... This will be competing with IBM... http://www.coindesk.com/ibm-sees-role-block-chain-internet-things/