According to reports with the US financial watchdog, Tesla CEO Elon Musk has sold an additional 19.5 million shares of the electric vehicle manufacturer for $3.95 billion (£3.4 billion).
The announcement comes less than two weeks after the richest man in the world finished acquiring Twitter for $44 billion.
Since the beginning of this year, the share price of Tesla has decreased by more than 50%.
Separately, due to a potential issue with its power-steering, Tesla is recalling slightly under 40,000 of its cars in the US.
With the most recent sale, Mr. Musk has now sold about $20 billion worth of Tesla shares since announcing earlier this year that he had acquired a stake in Twitter.
He sold $8.5 billion worth of Tesla stock in April and another $7 billion worth in August of this year.
Due to a possible power-steering issue, Tesla recalled slightly over 40,000 of its vehicles in the US on Tuesday.
The maker of electric cars warned that potholes or uneven roads could cause the vehicles’ power-steering assist system to malfunction.
According to the National Highway Traffic Safety Administration, it can necessitate more steering effort, especially at slow speeds, raising the danger of an accident.
To re-calibrate the system, Tesla has made a software update available.
It stated that it was not aware of any accidents or fatalities related to the issue.