Matthew Martens, co-chair of the securities litigation and enforcement practice group of Wilmer Cutler Pickering Hale and Dorr, has one of those hard-to-believe legal resumes: a clerkship with then-Chief Justice William Rehnquist at the Supreme Court, chief of staff for U.S. Department of Justice's Criminal Division, and chief litigation counsel for the SEC's Division of Enforcement. (At the SEC, he scored Litigator of the Week honors back in 2013 after securing a win in the securities fraud trial against former Goldman Sachs trader Fabrice Tourre.)