According to the Financial Times, two private companies owned by Musk will achieve multi-billion dollar valuation jumps through new deals, as investors compete to support the world's richest man's vast business interests. SpaceX, the largest private company in the United States, is preparing to launch a takeover offer in December, selling existing shares of the company for about $135 per share, according to people familiar with the matter. This will value the rocket maker at more than $250 billion, up from about $210 billion in a similar deal earlier this year. Meanwhile, people familiar with the matter said that Musk's artificial intelligence startup xAI has raised $5 billion at a valuation of $45 billion, almost double its valuation a few months ago. Musk and his investors just started discussions last month, so this financing is proceeding at a very fast speed.