FacultyFaculty/Author Profile
Jeannemarie O'Brien

Jeannemarie O'Brien

Wachtell, Lipton, Rosen & Katz

New York, NY, USA


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 merger and acquisition transactions over the last decade.  Ms. O’Brien 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.

The transactions in which Ms. O’Brien has been involved include many major financial institution transactions, both bank and non-bank, including, the pending transactions between City National Corporation/Royal Bank of Canada and The Chubb Corporation/ACE Limited and the following completed transactions: Hilltop Holdings/Plains Capital; CapitalSource/PacWest Bancorp; Umpqua Holdings Corporation/Sterling Financial Corporation; Huntington Bancshares/Cameo Financial; 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; and Bank of America Corporation in its sale of Balboa Insurance Group to QBE Holdings, Inc.  She also has been involved in transactions outside of the financial sector, including Carefusion/Becton Dickinson; United Technologies Corporation/Goodrich Corporation; Thermo Fisher Scientific/Life Technologies Corporation; Vantiv/Mercury Payments Systems; Leap Wireless/AT&T; Rayonier Inc.’s spinoff of its performance fibers business; and CBS Outdoor Americas’ initial public offering

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 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.

Jeannemarie O'Brien is associated with the following items:
Course Handbooks  Course Handbooks Hot Issues in Executive Compensation 2015
CHB Chapters  CHB Chapters The Continuing Relevance of Change-of-Control Arrangements (July 2015) - Hot Issues in Executive Compensation 2015, Wednesday, September 16, 2015
Drafting and Negotiating Public Company Executive Employment Agreements: A Practitioners’ Guide - Hot Issues in Executive Compensation 2015, Wednesday, September 16, 2015
Web Segment  Web Segment Mergers & Acquisitions and Change-in-Control Topics - Hot Issues in Executive Compensation 2015, Friday, September 18, 2015
MP3 Audio  MP3 Audio Mergers & Acquisitions and Change-in-Control Topics - Mergers & Acquisitions and Change-in-Control Topics, Friday, September 18, 2015
Transcripts  Transcripts Mergers & Acquisitions and Change-in-Control Topics - Mergers & Acquisitions and Change-in-Control Topics, Friday, September 18, 2015
MP4 - Mobile Video Seg  MP4 - Mobile Video Seg Mergers & Acquisitions and Change-in-Control Topics - Mergers & Acquisitions and Change-in-Control Topics, Friday, September 18, 2015
On-Demand Web Programs  On-Demand Web Programs Hot Issues in Executive Compensation 2015, Tuesday, September 29, 2015, New York, NY
Live Seminar  Live Seminar Hot Issues in Executive Compensation 2016, Friday, September 16, 2016, New York, NY
Live Webcast  Live Webcast Hot Issues in Executive Compensation 2016, Friday, September 16, 2016, New York, NY
PLI Grpcast-Live Web  PLI Grpcast-Live Web Hot Issues in Executive Compensation 2016, Friday, September 16, 2016, Cleveland, OH
Hot Issues in Executive Compensation 2016, Friday, September 16, 2016, Nashville, TN
Hot Issues in Executive Compensation 2016, Friday, September 16, 2016, Philadelphia, PA
Hot Issues in Executive Compensation 2016, Friday, September 16, 2016, Mechanicsburg, PA
Hot Issues in Executive Compensation 2016, Friday, September 16, 2016, Pittsburgh, PA
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