Is that something I should care about? I don’t really care how much he leveraged stock. Maybe people in finance would care because maybe that might mean he’s stressed about the different ventures but that’s just par for the course in the tech world.
If Musk gets a margin call, forced liquidation will create downward price pressure. He has to do SEC filings and announce it to the world. It could create huge panic sell and open a door for a takeover.