Tesla boss Elon Musk has sold another 19.5 million shares of the electric car maker worth $3.95bn (£3.4bn), filings with the US financial watchdog show.
The news comes less than two weeks after the world’s richest man completed his $44bn takeover of Twitter.
Tesla’s share price has fallen by more than 50% since the start of this year.
Separately, Tesla is recalling just over 40,000 of its vehicles in the US because of a potential problem with their power-steering.
The reason for the latest sales, which took place in the last week, has not yet been disclosed.