The Tesla shares sale came after Elon Musk earlier this week clinched a deal to buy Twitter for $44 billion cash.

Elon Musk sold 4.4 million Tesla shares on Tuesday and Wednesday, according to the filings.

Tesla Inc Chief Executive Officer Elon Musk sold $4 billion worth of shares in of the electric vehicle maker, US securities filings showed on Thursday, in sales likely aimed at helping finance his planned purchase of Twitter Inc.

 “No further TSLA sales planned after today.”

                                                                                              Elon Musk, CEO, Tesla Motor.

He sold 4.4 million shares on Tuesday and Wednesday, according to the filings, equating to 2.6% of his stake in the company.

The sale came after Musk on Monday clinched a deal to buy Twitter for $44 billion cash in a transaction that will shift control of the social media platform populated by millions of users and global leaders to the world’s richest person. Musk’s net worth is $268 billion, according to Forbes.

“We would provide a $21 billion equity commitment. he would pay more than $11 billion in taxes in 2021 due to his exercise of stock options set to expire this year.“

                                                                                               Elon Musk, CEO, Tesla Motor.

It is not clear how he will cover the remaining $17 billion of equity financing. Musk holds a 43.61% stake in unlisted rocket company SpaceX which is reportedly valued at $100 billion.

Musk has been looking for partners to reduce his equity contribution to the deal, a person familiar with the matter told Reuters, adding that it is far from certain such a partner will emerge.

This is his first Tesla stock sale since he offloaded $16.4 billion worth of shares in November and December after polling Twitter users about selling 10% of his stake in the electric car maker.

Some traders have fretted this week that Musk may not have enough money sitting around to fund his $21 billion cash contribution and could walk away from the deal, weighing on Twitter shares.

Tesla shares have fallen nearly 20% since Musk disclosed his over 9% stake in Twitter on April 4. Investors have expressed concern that Musk may have to sell Tesla shares to fund his equity contribution to the takeover offer.

As part of the Twitter deal, Musk also took out a $12.5 billion margin loan tied to his Tesla stock. He had already borrowed against around half of his Tesla shares.