Tesla CEO Elon Musk is willing to invest up to $15 billion of his own cash to take Twitter private and will make a bid within 10 days, according to Tuesday reports.

The New York Post reported Tuesday that Musk, with a 9.1% stake in the social media company, has tapped Morgan Stanley to help raise an additional $10 billion…

The sources told The Post that the co-investors will collectively have more equity in Twitter, but Musk will remain the single largest shareholder.

The co-investors will reportedly finance a hostile tender directly to Twitter shareholders, which happens when an outside investor’s ambitions to take over another company do not have management’s approval or blessing.