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Marisa Dieken

Marisa Dieken

Associate
Baker & McKenzie LLP

Biography

Marisa Dieken is an associate in Baker McKenzie's North America Antitrust & Competition Practice Group, based in Palo Alto, California. Marisa advises clients on a broad range of consumer protection and antitrust law issues. Marisa has significant experience advising clients on civil and criminal investigations before the Department of Justice, Federal Trade Commission, and foreign competition authorities, as well as advising clients on compliance programs, risk assessments, and on pricing and distribution policies.

Prior to joining Baker McKenzie, Marisa worked for the US Department of Justice as a trial attorney. While at the DOJ, Marisa led pre-merger investigations in telecommunications, media, and technology sectors, and contributed on a wide array of civil merger and conduct investigations. She also contributed to litigation teams for the Antitrust Division, including US v. AT&T/Time Warner and US v. American Airlines/Jetblue.

Practice Focus

Marisa has experience in a diverse range of sectors such as telecommunications, media, technology software, digital platforms, aviation, publishing, pharmaceuticals, sports, insurance, industrials, music, and motion pictures. Marisa has also done extensive review of the Clayton Act, Sherman Act, Robinson-Patman Act, and Hart-Scott-Rodino filings.

Representative Legal Matters

  • Represented Methanex Corporation in its acquisition of OCI’s global methanol business.
  • Represented Marel hf. in JBT Corporations’ voluntary takeover offer.
  • Represented a major consumer goods manufacturer in multiple acquisitions.
  • Represented a major technology firm as a third-party in a number of consumer protection and competition matters.
  • Represented a large healthcare company in advising on leniency application before foreign competition agency.

Professional Associations and Memberships

  • American Bar Association Section of Antitrust Law - Member
  • National Asian Pacific American Bar Association - Member

Admissions

  • District of Columbia~United States (2023)
  • California~United States (2017)

Education

  • UCLA School of Law (JD) (2017)
  • Rice University (BA, cum laude) (2013)

Languages

  • English
  • Japanese
  • Spanish
Baker & McKenzie LLP is a Limited Liability Partnership organized under the laws of the State of Illinois (USA) and is a member of Baker & McKenzie International, a Verein organized under the laws of Switzerland.