Is it Sam Altman or OpenAI? If Altman, then is he doing like what Musks says he will do – and do new AI-investments outside of the company he is CEO at, to own

Is it Sam Altman or OpenAI? If Altman, then is he doing like what Musks says he will do – and do new AI-investments outside of the company he is CEO at, to own more of it? What kind of company owners allows their CEO:s to do such things?