Billionaire Elon Musk has sold another 22 million shares, worth over $3.58bn dollars

According to a filing with SEC, the shares were sold this week.

It brings the total of Tesla stocks sold by Mr Musk over the past year to almost 40 billion dollars.

The reason for the latest share sales has not been disclosed.

He still remains Tesla’s biggest shareholder but right now, Tesla is one of the worst performing stocks among major car makers and tech companies this year.

At the end of last year the company was worth more than $1 trillion dollars but its value has slumped in recent months.

Investors are worried that Musk’s buyout of Twitter is diverting his attention.