Why should he? The shares were only to create the company. He owns a lot of it but only to own the companies earnings this way. He cant sell them without crashing the price. If friedcat would sell this would be a very bad sign. So in my opinion he never thought of his shares value since the only thing matters for him are the company itself and the part of the earnings he gets.
So why should he care now about the shareprice? He only would because of his shareholders. But the shareprice does change nothing for the company. It will still mine, it will still create the same earnings. So the shareprice is something he only would care because of his shareholders.
And the connections that exist between the shareprice of normal stock exchange securities and the companies profit are not existing here.