ALLISON ROBBERT / Contributor / Getty Images Elon Musk became the first person with a net worth over $500 billion Key Takeaways Tesla CEO Elon Musk, the richest person in the world, saw his net worth surpass $500 billion in October 2025. He is the first person to hit that milestone. Musk is Tesla's largest shareholder, with 19.7% of the company's equity as of August, 2025. Rising Tesla share prices fueled Musk's record net worth. A new proposed pay package, that could grant Musk additional Tesla shar ...