got it, branson is a client.
Rizvi, who counts British billionaire Richard Branson and Jeffrey Skoll, the former eBay executive and film producer, among his clients, began investing in Twitter in late 2010.
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In three years, Rizvi managed to sell Twitter stock to several big-hitter investors such as JPMorgan Chase and Kingdom Holding, Saudi Prince Alwaleed's investment arm.
He and his investors together hold a 15% stake in the San Francisco-based firm, purchased at a staggering cost of over $1bn, reported Reuters.
Branson and Skoll aside, Rizvi's network of high net-worth individuals includes Queen Noor of Jordan and Google's Larry Page and Eric Schmidt.
However, it is still not known if any of them have invested in Twitter.
The 47-year-old financier, the co-founder of New York-based private equity firm Rizvi Traverse, is known to guard his privacy fervently.
Both Rizvi and Twitter refused to comment.
From India to Hollywood
Rizvi, born in India, migrated to the US with his family at the age of five.
He and his older brother Ashraf graduated from the University of Pennsylvania's Wharton business school and they both serve on the undergraduate school's executive board.