FacultyFaculty/Author Profile

Marilyn W. Sonnie

Jones Day
New York, NY, USA

Marilyn Sonnie is a corporate and transactional lawyer with extensive experience in public company mergers and corporate governance. She also has a strong background in restructuring work and private equity transactions. Marilyn is actively involved in corporate counseling, including advising companies and their boards on shareholder activism including proxy contests, unsolicited takeover proposals, takeover preparedness, corporate governance, disclosure, and fiduciary issues. She recently lead a ground-breaking Social Impact Bond transaction involving New York State and Social Finance Inc. Her extensive cross-border experience has included a number of transactions for Russian clients.

Representative public transactions in which she has played a key role include Michael Baker Corporation's sale to an affiliate of DC Capital, Emulex's settlement with Elliott Associates following shareholder activist activity, Chrysler's sale out of bankruptcy to a Fiat-sponsored entity, Dana Corporation's bankruptcy exit with a private equity sponsor, Harman International Industries' attempted sale to Kohlberg Kravis Roberts and GS Capital Partners, Sprint and Nextel's merger-of-equals, International Steel's merger with Mittal Steel, R.J. Reynolds' business combination with British American Tobacco's U.S. business and its acquisitions of Santa Fe Natural Tobacco and the Nabisco Group holding company, Williams Communications' chapter 11 case and sale of equity to Leucadia National.

In addition, Marilyn has extensive knowledge in capital markets, having traded government securities at Security Pacific National Bank and McDonald and Company Securities, Inc.

Experience Highlights

  • Social Finance drives Social Impact Bond Pay for Success project
  • Emulex issues $175 million of Convertible Senior Notes in Rule 144A offering
  • Michael Baker Corporation acquired by Integrated Mission Solutions for $396.5 million

Areas of Focus

  • Mergers & Acquisitions
  • Joint Ventures & Strategic Alliances


Case Western Reserve University (J.D. summa cum laude 1993; Order of the Coif; Class Rank, 3d; Articles Editor, Law Review); The Johns Hopkins University (S.S. 1981)

Bar Admissions
Ohio and New York


  • twitter
  • LinkedIn
  • YouTube
  • RSS

All Contents Copyright © 1996-2018 Practising Law Institute. Continuing Legal Education since 1933.

© 2018 PLI PRACTISING LAW INSTITUTE. All rights reserved. The PLI logo is a service mark of PLI.