Wachtell, Lipton, Rosen & Katz

Jeannemarie O'Brien

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Practice Areas

Practice focusing on the executive compensation and employee benefits aspects of transactions, with a particular emphasis on transactions involving financial services institutions. She has been involved in over $500 billion of mergers and acquisitions transactions over the last decade. She also advises companies and their boards on governance issues and assists companies and senior executives on executive compensation matters in both the public and private sectors, and has particular expertise regarding the compensation structures at financial institutions and the related regulatory considerations.


Joined Wachtell, Lipton, Rosen & Katz in 1997 and became a partner in the Executive Compensation and Benefits Department in 2003.

Professional Memberships

She is a member of the New York State and American Bar Associations.


Received a BA cum laude from Mount Holyoke College in 1989, and a JD cum laude from Fordham Law School in 1994, where she was an associate editor of the Fordham Law Review. She serves as a member of the Board of Trustees of the Trinity School in New York City and of the non-profit organization Prep for Prep and is on the Advisory Board of St. Bartholomew Community Preschool in New York City.