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Input: Facebookâs  first major investor Peter Thiel  has sold three-quarters of  his  remaining stake in the social network as part of a previously established trading plan  a regulatory filing showed.
 Thiel   who is a member of Facebookâs board  had already sold more than $1 billion worth of  its  stock before the filing made on Tuesday.
 It  said  he  had sold another 160 805 shares for about $29 million  leaving  his  holdings at 59 913 Class A shares in the company.
 Thiel  co-founded payment service PayPal and is known for funding the Hulk Hogan lawsuit that led to the shutdown of online news site Gawker. He became a Facebook investor in 2004 with an initial investment of $500 000 at a $5 million valuation.
When Zuckerberg took the company public in 2012   Thiel  sold 16.8 million shares at the IPO for about $640 million. Later the same year  he sold roughly 20 million of his remaining 26 million shares for $400 million after the expiry of a lockup.

Peter Thiel has sold most of his remaining Facebook stake