Saudi Arabian billionaire Prince Alwaleed bin Talal and his investment firm Kingdom Holding now together own more than 5 percent of Twitter, the prince's office said on Wednesday.
Kingdom Holding paid $50 million to double its stake to 0.72 percent. Prince Alwaleed owns 31.1 million Twitter shares, or 4.45 percent of the company.
The statement did not indicate whether Prince Alwaleed personally upped his stake in the company.
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