Musk has also co-founded Square Roots, an urban farming company, and Nova Sky Stories, which aims to use drones to create live light art in the sky, and has $2 million worth of stock in Chipotle.

Kimbal Musk, Elon Musk's brother, sold 75,000 Tesla shares worth about $28 million, a filing shows. The disposals reduced his stake by almost 5%, to 1.46 million shares.

Kimbal Musk is also on the board of his brother's company Tesla. He's known for his penchant for cowboy hats and has an estimated net worth of more than $240 million, according to Wallmine.

Tesla board member Kimbal Musk defended CEO Elon Musk's newly approved $29 billion compensation package, saying his brother ...

Tesla shares plummeted after Musk, 51, posted the poll — and the CEO subsequently sold several billion dollars worth of stock. Kimbal is on the Tesla board of directors.

Kimbal Musk made a rare TV appearance to say his older brother Elon—the world’s richest man—needs more money. Tesla’s 54-year ...

Kimbal Musk says he and his brother aren't obsessed with wealth, which would be "boring." Elon Musk is the wealthiest person in the world, with a net worth of $198.6 billion.

Kimbal Musk, Elon Musk's brother, sold 75,000 Tesla shares worth about $28 million, a filing shows. The disposals reduced his stake by almost 5%, to 1.46 million shares.