Jeannemarie O'Brien is a partner in the New York law firm of Wachtell, Lipton, Rosen & Katz, where she is active in the firm's merger and acquisition 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. These include many major financial institution transactions, both bank and non-bank, including Marshall & Ilsley/Bank of Montreal, Alleghany Corporation/Transatlantic Holdings, Comerica Incorporated/Sterling Bancshares, Inc., Bank of America Corporation/Merrill Lynch, Wells Fargo/Wachovia, Countrywide/Bank of America Corporation, FleetBoston Financial Corp./Bank of America Corporation, MBNA/Bank of America Corporation, J.P. Morgan/Bank One, J.P. Morgan/Bank of New York, Warburg Pincus/The Mutual Fund Store and TMFS Holdings, LLC, Bank of America Corporation in its sale of Balboa Insurance Group to QBE Holdings, Inc., and the public offerings of Lazard and Keefe, Bruyette & Woods. She also has been involved in transactions outside of the financial sector, including United Technologies Corporation/Goodrich Corporation, Thermo Fisher Scientific/Dionex Corporation, Thermo Electron/Fisher Scientific, Longs Drug Stores/CVS Caremark, UAP Holding Corp./Agrium, Inc. and Dollar General Corporation/Kohlberg Kravis Roberts & Co. Ms. O'Brien advises companies and their boards on governance issues and also 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.
Ms. O'Brien frequently writes and speaks on executive compensation and corporate governance issues and is recognized as a leading executive compensation lawyer in the Chambers USA Guide to America's Leading Lawyers for Business and The Legal 500. In addition to memos and articles on recent developments in the executive compensation area, she is an author of the chapter on executive compensation in the Wachtell, Lipton, Rosen & Katz "Financial Institutions M&A," an annual review of leading developments.
Ms. O'Brien received a B.A. cum laude from Mount Holyoke College in 1989, and a J.D. cum laude from Fordham Law School in 1994, where she was an associate editor of the Fordham Law Review. She is a member of the New York State and American Bar Associations. Ms. O'Brien serves as a member of the Board of Trustees of both the Trinity School in New York City and the non-profit organization Prep for Prep and is on the Advisory Board of St. Bartholomew Community Preschool in New York City.