Entrepreneur Peter Thiel has launched a new, growth stage technology investment firm called Mithril Capital Management, capitalized with $402M in funding, Thiel said today. The new fund, based in San Francisco, will focus on investing in companies which have "moved beyond the traditional venture-backed stage" and prefer to remain private. According to Thiel, the fund will be led by Ajay Royan, formerly of Clarium, along with Jim O'Neill, also formerly of Clarium.