Controlling and investing are completely different things. Control is exercised by the board and the management, and these are pretty much universally public fo

Controlling and investing are completely different things. Control is exercised by the board and the management, and these are pretty much universally public for a large company. However, investment does not have to come with a seat on the board - a large one can, and then, again, it would be public, but it doesn't have to. You seem to confuse entirely different things.