Ex-Willkie Lawyer Pleaded Guilty in M&A Insider-Trading Case

A former Willkie Farr & Gallagher counsel is cooperating with prosecutors after pleading guilty to being one of the elite mergers and acquisitions lawyers who provided tips on deals to a massive insider trading ring.

Gabriel Gershowitz is one of the 30 people against whom charges were unsealed Wednesday by federal prosecutors in Boston. But additional unsealed documents show Gershowitz and eight others have already pleaded guilty and are cooperating with the government.