The top investors who supported Elon Musk’s acquisition of Twitter have been revealed, and they include platform co-founder Jack Dorsey, Saudi Prince Alwaleed bin Talal, and a Qatari sovereign Wealth fund subsidiary, according to regulatory filings.

Last week the $44 billion acquisition completed following several months of negotiations and legal wrangling, and Musk immediately fired several of Twitter’s top executives.

Regulatory filings show, Saudi Prince Alwaleed bin Talal, maintained his stake in the company after moving his nearly 35 million shares, worth roughly $1.9 billion, at the final $54.20 share price, through the Kingdom Holding Company. Following the move, Prince Alwaleed bin Talal became the second largest investor in the new company.

Twitter co-founder Jack Dorsey rolled over more than 18 million shares, comprising roughly 2.4% of the company, at a cost of about $978 million at the acquisition price. The rolled over shares gave Dorsey new shares in Elon Musk’s X-Holdings I, which is in control of Twitter.

Qatar’s sovereign wealth fund contributed $375 million and received a stake in the new social media company.