Tesla boss Elon Musk has once again silvered shares in his group.

The entrepreneur sold around 934,000 papers for about 1 billion dollars, as emerged from mandatory reports to the American stock exchange regulator on Friday night.

This means that Musk has sold around 10 million Tesla shares worth almost 11 billion dollars (9.6 billion euros) since he agreed to sell part of his shares in the electric car manufacturer in a Twitter vote in early November.

Musk had Twitter users vote whether he should part with 10 percent of his 17 percent Tesla stake in order to pay more taxes.

To achieve this goal, Musk has to sell more Tesla shares.

Musk is the company's largest single shareholder.

The Tesla boss is considered the richest person in the world with an estimated fortune of around $ 285 billion.

But its wealth is largely based on equity stakes, which are only taxed upon sale.