Elon Musk has lost his position as the chair of Tesla's board as a result of needing to make a deal with the United States' Securities and Exchange Commission (SEC). The e-vehicle manufacturer will also have to pay the SEC US$20 million as part of this agreement. The commission has taken this action over Musk's threats to make his company private.
https://www.notebookcheck.net/Elon-Musk-obliged-to-step-down-as-Tesla-board-chair-in-SEC-settlement.336504.0.html