Tesla

Shares of the company have fallen more than 15 percent over the past five days.

Analysts believe progress toward privatization is not as far ahead as earlier thought.

Private litigation could dwarf the cost of a government fine.

The entrepreneur told The New York Times this past year has been the most "painful" of his career.

Efforts are underway to find a second-in-command to help take some of the pressure off Musk.

Regulators last year subpoenaed a Tesla parts supplier as they looked at whether the auto maker misled investors about Model 3 production problems, the Wall Street Journal reported.

Regulators are pressing Tesla's directors for details on how much information Musk shared with them before his go-private tweets, the Wall Street Journal reports.