In our case, it is known that the shareholders have no ownership and power to sell the chametz or to burn it, for the business is conducted according to the wise leaders to benefit their business, and since the stock owner cannot burn the chametz, he does not violate the prohibition of seeing chametz on Passover.
In our case, it is impossible that the chametz will arrive to the hands of the stock owners, because they have nothing to do with the business, just that they get profits and losses, but they have no ownership over the land or the property.