They have invented a thing called the computer which is able to add things up and even multiply. Therefore by using that "computer" thing they can make sure that the family office does not own more than 9.9% of the company. And if there were some glitch so that they owned 9.90000001, they could sell shares.

I have replied to your query via PM and I simply don't understand why you think that there is no mechanism whereby they can abide by the terms of their SIGNED, LEGAL AGREEMENT.