Third Rock Eying $400M Second Fund

Xconomy Boston — 

Third Rock Ventures, a Boston venture firm focused on life sciences investments, has filed papers with the SEC to raise a second fund. The proposed amount of the new fund is $400 million, yet the paperwork indicates that none of those funds had been raised as of the April 9 filing. Still, this is good news for early-stage biotech startups, which have been the sweet spot for Third Rock’s maiden fund of $378 million, closed in 2007.