Granted, but I view SpaceX as being Gwynne Shotwell's company since a few years, not Musk's, who seems busy trolling people on Twitter. Shotwell's been the one running the business.
Musk is, and remains, both CEO and chief engineer of SpaceX. According to Isaacson's biography, Musk is the person who suggested and, against considerable opposition from his engineers, insisted on Starship switching to stainless steel instead of carbon fiber.