Elon Musk has registered three companies in Delaware under the name "X Holdings" to support his bid to buy Twitter and take the social media giant private. 

According to a filing with the Securities and Exchange Commission on Wednesday, X Holdings I would serve as the parent company overseeing a potential transaction, while X Holdings II would merge with Twitter and be used to purchase its outstanding common stock. A separate SEC filing adds that X Holdings III would be used to help fund the transaction. 

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Musk is exploring whether to commence a tender offer to acquire all outstanding shares of Twitter's common stock, citing the board's lack of response to his $54.20 per share offer. 

Musk says he has received commitments of approximately $46.5 billion to help finance a potential deal, including roughly $21 billion in equity financing and around $25.5 billion in debt financing through Morgan Stanley Senior Funding and other firms, including Bank of America, Mizuho Bank, Barclays, MUFG, Société Générale and BNP Paribas.

Twitter told FOX Business Thursday it was in receipt of Musk's updated, nonbinding proposal, adding that it "is committed to conducting a careful, comprehensive and deliberate review to determine the course of action that it believes is in the best interest of the company and all Twitter stockholders."