Brian Singerman’s new fund has a twist, and Peter Thiel as a big backer

​Former Founders Fund GP Brian Singerman and co-founder and managing partner of Quiet Capital, Lee Linden, are seeking over $500 million for a new fund called GPx, three people familiar with their strategy told TechCrunch. A significant portion of GPx’s fund, potentially as much as 50%, will come from Founders Fund co-founder Peter Thiel, these people said.