SAN FRANCISCO—A jury rejected investor claims that Elon Musk violated federal securities law when he tweeted in 2018 about potentially taking Tesla Inc. private, handing a major win to the billionaire chief executive.
The nine-person jury returned a verdict Friday afternoon after roughly two hours of deliberations, finding that the investors who brought the class-action case failed to prove their claims against Mr. Musk or the electric-car company he runs.
