A San Francisco jury began deliberations Friday in a high-stakes trial between Elon Musk and a class of Tesla shareholders that could guide attorneys on advising corporate executives about their use of social media.

The trial lasted for three weeks and involved investors who alleged billions of dollars in losses in 2018, from Aug. 7 to Aug. 17, after Musk posted on Twitter: “Am considering taking Tesla private at $420. Funding secured.”