The world’s richest person said he doesn’t have enough control over the company where he’s chief executive and the leading shareholder. Elon Musk said he doesn’t want to grow Tesla’s TSLA, -3.67% artificial intelligence and robotics capability without having control of a quarter of the company. Musk already owns 13% of the automaker. On the social media service X that he owns, Musk said he would need 25% control. “If I have 25%, it means I am influential, but can be overridden if twice as many sharehol ...