Michael J. O'Sullivan

MIKE O’SULLIVAN is a corporate partner in the Los Angeles office of Munger, Tolles & Olson LLP.

He spends most of his time advising:

  • companies and their boards of directors on corporate counseling and governance matters,
  • issuers and underwriters in securities issuances, and
  • bidders, targets and financial advisors in mergers and acquisitions transactions.

Recently he represented:

  • Berkshire Hathaway in its investments in General Electric and Swiss Re,
  • City National Corporation in its acquisition of ten investment management companies,
  • Countrywide Financial Corporation in numerous public and private securities offerings,
  • the two founders of Google in that company’s initial public offering,
  • KB Home in its acquisitions of six homebuilders over a three year period, and
  • a privately-held talent agency in its sale to a private equity firm.

Mike is currently working on a multi-disciplinary team advising mortgage originators on issues arising in the origination and securitization process.

He recently started provided, however, a blog devoted to corporate law issues, and maintains a related Twitter feed @providedhowever. He previously wrote Corp Law Blog, one of the first corporate law blogs. He is also compiling a securities law dictionary.

Mike is an adjunct professor at Loyola Law School, where will be teaching a course in mergers and acquisitions this fall.

Mike graduated with honors in American history from the University of Pennsylvania. His honors thesis examined the origins of the Bank of North America, the New World’s first commercial bank. After college he worked in the research department of Shearson Lehman Brothers. After the October 1987 market crash and the firm’s subsequent merger with E.F. Hutton, he left Wall Street for law school. He graduated first in his class from the University of Southern California Law School, served on the Southern California Law Review and taught legal writing.

Education

  • University of Southern California Gould School of Law (J.D., 1992);  Order of the Coif
    Executive Notes Editor, Southern California Law Review, 1991-1992
    Legal Writing Instructor, University of Southern California Law Center, 1991-1992
  • University of Pennsylvania (B.A. with honors, 1987)