Elon Musk, founder of Tesla, sold 7.9 million shares of the company's stock worth $6.88 billion, according to documents from the U.S. Securities and Exchange Commission.

These documents show that the sale took place on Friday, when Tesla shares fell by 6.6%, as well as on Monday, when they showed a modest increase of 0.8%, and on Tuesday, when the price collapsed again by 2.4%.

Musk had previously sold $4 billion worth of Tesla shares after reaching an agreement to buy the social media network "Twitter," announcing that he would not sell future shares of the car company. It was as if he needed liquid funds to finance part of the deal.

In April, Musk agreed to buy Twitter for $44 billion, but he later requested verification of the company's data which stated that the number of fake accounts used, among other things, to send spam messages did not exceed 5%.

However, Musk later informed Twitter that he refuses to buy this social media network, explaining that he was exercising his right to complete the agreement, noting that the social network underestimated the number of fake accounts and also did not provide the necessary information.

At that point, the social network filed a lawsuit against businessman Musk in the Delaware state court.

It is noted that Tesla Motors, an American company, was founded in 2003 as a developer and manufacturer of electric vehicles and related technologies.

In addition to electric cars, this company manufactures batteries and electric motors using its own technology and sells them to other car companies, notably Toyota and Daimler.