Elon Musk says he needs to build his stake in Tesla so much that he could become the world’s first trillionaire. But this week he said his aim wasn’t to increase his planet-leading wealth. Instead, Musk said the biggest pay package in history was necessary to protect his company.

Elon Musk, the world’s richest person, spent the end of Tesla Inc.’s earnings call pleading with investors to approve his $1 trillion pay package and blasting the shareholder advisory firms that have...

On the plus side, however, he flagged that margins for the segment continued to expand, reaching 31.4% in the latest period versus 30.3% in the second quarter.

Elon Musk has hammered acting NASA chief Sean Duffy repeatedly on social media over the past few days, calling him "Sean Dummy" and claiming he's "trying to kill NASA." Here's what may be going on.

Elon Musk is taking aim at the head of NASA amid news that the U.S. space agency may consider companies other than SpaceX to build landers to transport astronauts to the moon's surface.