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 $900 billion of merger and acquisition transactions during her career.  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: PrivateBancorp, Inc./Canadian Imperial Bank of Commerce; Huntington Bancshares/FirstMerit; Astoria Financial Corporation/Sterling Bancorp; City National/Royal Bank of Canada; National Penn Bancshares/BB&T; Chubb/ACE Limited; Heartland Payments/Global Payments; Vantiv/Mercury Payments Systems; Hilltop Holdings/Plains Capital; CapitalSource/PacWest Bancorp; Umpqua Holdings Corporation/Sterling Financial Corporation; Huntington Bancshares/Camco 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.  She also has been involved in transactions outside of the financial sector, including: C.R. Bard, Inc./Becton, Dickinson and Company; Abbott/St. Jude Medical; Thermo Fisher Scientific/FEI Company; Pfizer Inc./Anacor Pharmaceuticals, Inc.; Pfizer Inc./Allergan plc; United Technologies (Sikorsky Aircraft)/Lockheed Martin; Carefusion/Becton Dickinson; Cox Automotive/Dealertrack Technologies; United Technologies Corporation/Goodrich Corporation; Thermo Fisher Scientific/Life Technologies Corporation; Leap Wireless/AT&T; Gannett (TEGNA) in its spinoffs of its publishing business and digital automotive business; 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 significant developments.

Ms. O’Brien received a B.A. cum laude from Mount Holyoke College, and a J.D. cum laude from Fordham University School of Law, 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 non-profit organization Prep for Prep, a member of the Dean’s Planning Council of Fordham University School of Law and a member of 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 2016
Hot Issues in Executive Compensation 2017
CHB Chapters  CHB Chapters Drafting and Negotiating Public Company Executive Employment Agreements: A Practitioners’ Guide - Hot Issues in Executive Compensation 2016, Monday, September 19, 2016
Being Prepared for a Change of Control (July 2016) - Hot Issues in Executive Compensation 2016, Monday, September 19, 2016
Ready or Not for a Change of Control (July 2017) - Hot Issues in Executive Compensation 2017, Thursday, September 14, 2017
Web Segment  Web Segment Executive Compensation: Mergers & Acquisitions and Change-in-Control Topics - Hot Issues in Executive Compensation 2017, Wednesday, September 20, 2017
MP3 Audio  MP3 Audio Executive Compensation: Mergers & Acquisitions and Change-in-Control Topics - Executive Compensation: Mergers & Acquisitions and Change-in-Control Topics, Wednesday, September 20, 2017
Transcripts  Transcripts Executive Compensation: Mergers & Acquisitions and Change-in-Control Topics - Executive Compensation: Mergers & Acquisitions and Change-in-Control Topics, Wednesday, September 20, 2017
MP4 - Mobile Video Seg  MP4 - Mobile Video Seg Executive Compensation: Mergers & Acquisitions and Change-in-Control Topics - Executive Compensation: Mergers & Acquisitions and Change-in-Control Topics, Wednesday, September 20, 2017
On-Demand Web Programs  On-Demand Web Programs Hot Issues in Executive Compensation 2017, Thursday, September 21, 2017, New York, NY
Live Seminar  Live Seminar Hot Issues in Executive Compensation 2018, Friday, September 21, 2018, New York, NY
Live Webcast  Live Webcast Hot Issues in Executive Compensation 2018, Friday, September 21, 2018, New York, NY
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