Tesla CEO Elon Musk has sold $6.9 billion worth of Tesla shares between August 5 and 9, according to the filings published on the U.S. Securities and Exchange Commission's website on Tuesday. 

"In the (hopefully unlikely) event that Twitter forces this deal to close and some equity partners don't come through, it is important to avoid an emergency sale of Tesla stock," Musk wrote on Twitter.

(Cover: File photo of Tesla CEO Elon Musk. /CFP)