Sort of, in theory. But there are a few on the chart you linked to that actually have ties to each other that that chart doesn’t show. It makes it too cut and dry and in reality that isn’t how it is.
But the one I’ve seen was patterned like a family tree or pyramid. With the world’s big few at the top and branches off of them from there with lines connecting them to who they own or how they are affiliated. Some of the lesser have ties to each other and they have lines connecting them and explaining as well.
When you see it in this form, you really realize how a few control many, even if it isn’t seen on the surface (i.e.- It’s not as simple as “This company owns part or all of this one”).